01593nas a2200241 4500008004100000022001400041245006000055210006000115260009900175300001200274490000700286520082300293653001901116653001601135653002201151653001901173653001501192100001501207700001401222700001401236700001401250856008701264 2005 eng d a0141-391000aOverview on the degradability of polymer nanocomposites0 aOverview on the degradability of polymer nanocomposites aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcMAY a234-2500 v883 a

Polymer nanocomposites have attracted great attention world wide from both academic and industrial points of view. The material properties of polymers can be enhanced dramatically by incorporating layered silicates at fairly low concentrations. The durability of any material depends upon several factors e.g. light, heat, microwaves, mechanical abrasion etc. The study and the effect of these factors on the performance are essentially required to extend the application limits. The durability of polymer nanocomposites has been evaluated under different environments. The present review describes the durability of different polymer nanocomposites mainly under thermal- and photoageing. Biodegradable nanoeomposites of different polymers are also discussed briefly. (c) 2004 Elsevier Ltd. All rights reserved.

10aBiodegradation10aDegradation10alayered silicates10aNanocomposites10aweathering1 aPandey, JK1 aReddy, KR1 aKumar, AP1 aSingh, RP uhttps://library.ncl.res.in/content/overview-degradability-polymer-nanocomposites-002001nas a2200253 4500008004100000022001400041245008300055210006900138260006800207300001200275490000700287520113000294653002201424653001601446653002201462653002101484653001501505100002501520700002001545700002201565700001801587700002501605856011701630 2005 eng d a0021-899500aThermal degradation kinetics of polyesters containing mesogenic aromatic diols0 aThermal degradation kinetics of polyesters containing mesogenic  a111 RIVER ST, HOBOKEN, NJ 07030 USAbJOHN WILEY & SONS INCcAUG a784-7920 v973 a

A series of polyesters were synthesized by reacting structurally differing aromatic diols with either saturated (flexible) or unsaturated (rigid) dicarboxylic acid halide by a stirred interfacial polycondensation technique. Thermal degradation kinetics of these polyesters were investigated by applying Coats-Redfern and Horowitz-Metzger nonisothermal procedures. The dynamic thermogravimetry experiments were conducted in nitrogen to obtain differential thermogravimetric plots. Thermal stability of these polyesters was discussed on the basis of semiquantitative methods such as differential procedural decomposition temperature, integral procedural decomposition temperature, and fraction decomposition temperature (e.g., 10 % DT). Degradation proceeded in multiple stages. The thermal degradation patterns and activation energies in these stages were discussed in relation to central bridging moieties of aromatic diol. The activation energies of these polyesters were found to be in the range of 100 to 200 kJ/mol. The effect of spacer type on activation energy was also reported. (c) 2005 Wiley Periodicals, Inc.

10aActivation energy10aDegradation10akinetics (polym.)10aPolycondensation10apolyesters1 aMule, Smita, Atmaram1 aGhadage, R., S.1 aJacob, Nalini, E.1 aRajan, C., R.1 aPonrathnam, Surendra uhttps://library.ncl.res.in/content/thermal-degradation-kinetics-polyesters-containing-mesogenic-aromatic-diols-001891nas a2200253 4500008004100000022001400041245009500055210006900150260008700219300001200306490000700318520100000325653001901325653001601344653000901360653002201369653001901391653001901410100002001429700002101449700002001470700001801490856012901508 2006 eng d a0892-705700aPreparation and performance evaluation of EPDM nanocomposites under accelerated weathering0 aPreparation and performance evaluation of EPDM nanocomposites un a1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLANDbSAGE PUBLICATIONS LTDcSEP a461-4740 v193 a

The degradability of ethylene propylene diene monomer (EPDM) nanocomposites, prepared from organically modified montmorillonite (CMMT), is studied under accelerated UV irradiation (lambda >= 290 nm) for different time intervals. The development of functional groups during degradation is monitored by FT-IR spectroscopy whereas, surface changes are studied by scanning electron microscopy (SEM). The effect of clay modifier and clay concentration on the degradability are studied. The degradation of neat polymer and composites taking place traditionally and an increase in carbonyl and hydroxyl groups are observed with irradiation time. Neat EPDM is found to be less degradable than nanocomposites. Degradation products, as seen by FT-IR in nanocomposites are found to be the same as in neat polymer but are generated at a faster rate. According to the experimental results, one can define that both ammonium ion and neat montmorillonite (MMT) accelerate the photo-oxidation of EPDM.

10acarbonyl index10aDegradation10aEPDM10alayered silicates10aNanocomposites10aphotooxidation1 aRana, Sravendra1 aTevtia, Amit, K.1 aKumar, Bijendra1 aSingh, R., P. uhttps://library.ncl.res.in/content/preparation-and-performance-evaluation-epdm-nanocomposites-under-accelerated-weathering-002238nas a2200241 4500008004100000022001400041245010700055210006900162260007300231300001200304490000700316520138200323653001201705653001601717653000901733653001801742653001101760100002101771700002401792700002901816700002601845856012501871 2008 eng d a0926-337300aIron-nickel bimetallic nanoparticles for reductive degradation of azo dye orange G in aqueous solution0 aIronnickel bimetallic nanoparticles for reductive degradation of aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAR a270-2780 v793 a

The degradation of Orange G, a monoazo dye, in aqueous solutions was investigated using Fe-Ni bimetallic nanoparticles. Transmission electron microscopy (TEM) of as-synthesized nanoparticles showed the presence of spherical particles having a size of 20-40 nm. X-ray photoelectron spectroscopy (XPS) did not detect the presence of nickel on the nanoparticle surface, which suggested a uniform distribution of both metals inside the particle core. Batch experiments with a minimum nanocatalyst loading of 3 g/L showed complete dye degradation after 10 min of reaction time. The degradation efficiency was linearly dependent on the initial dye concentration, pH of the solution and total Fe-Ni catalyst concentration. The efficiency increased with increasing Fe-Ni concentration and decreasing pH of the solution, but decreased with an increase in the dye concentration. The degradation rate followed first order reaction kinetics with respect to the dye concentration. High performance liquid chromatography-mass spectrometry (HPLC-MS) analysis of the degradation products revealed that the degradation mechanism proceeds through a reductive cleavage of the azo linkage resulting in the formation of aniline and surface-adsorbed naphthol amine derivatives. The latter are subsequently hydroxylated through an oxidative process. (C) 2007 Elsevier B.V. All rights reserved.

10aAzo Dye10aDegradation10airon10aNanoparticles10aNickel1 aBokare, Alok, D.1 aChikate, Rajeev, C.1 aRode, Chandrashekhar, V.1 aPaknikar, Kishore, M. uhttps://library.ncl.res.in/content/iron-nickel-bimetallic-nanoparticles-reductive-degradation-azo-dye-orange-g-aqueous-002009nas a2200265 4500008004100000022001400041245009700055210006900152260007300221300001200294490000800306520108900314653001501403653001601418653001601434653001301450653001201463653001801475100001901493700002101512700002401533700002901557700002601586856013101612 2010 eng d a0304-389400aReductive dechlorination of gamma-hexachlorocyclohexane using Fe-Pd bimetallic nanoparticles0 aReductive dechlorination of gammahexachlorocyclohexane using FeP aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAR a680-6870 v1753 a

Nanoscale Fe-Pd bimetallic particles were synthesized and used for degradation of lindane (gamma-hexachlorocyclohexane) in aqueous solution. Batch studies showed that 5 mg/Lof lindane was completely dechlorinated within 5 min at a catalyst loading of 0.5 g/L and the degradation process followed first-order kinetics. GC-MS analysis in corroboration with GC-ECD results showed the presence of cyclohexane as the final degradation product. The proposed mechanism for the reductive dechlorination of lindane involves Fe corrosion-induced hydrogen atom transfer from the Pd Surface. The enhanced degradation efficiency of Fe-Pd nanoparticles is attributed to: (1) high specific surface area of the nanoscale metal particles (60 m(2)/g), manyfold greater that of commercial grade micro- or milli-scale iron particles (similar to 1.6 m(2)/g); and, (2) increased catalytic reactivity due to the presence of I'd on the Surface. Recycling and column studies showed that these nanoparticles exhibit efficient and sustained catalytic activity. (C) 2009 Elsevier B.V. All rights reserved.

10aBimetallic10aCyclohexane10aDegradation10akinetics10aLindane10aNanoparticles1 aNagpal, Varima1 aBokare, Alok, D.1 aChikate, Rajeev, C.1 aRode, Chandrashekhar, V.1 aPaknikar, Kishore, M. uhttps://library.ncl.res.in/content/reductive-dechlorination-gamma-hexachlorocyclohexane-using-fe-pd-bimetallic-nanoparticles-002067nas a2200277 4500008004100000022001400041245017900055210006900234260006700303300001400370490000800384520105500392653001101447653001501458653001601473653001301489100001601502700002601518700001801544700002101562700001801583700001701601700002101618700002301639856012701662 2013 eng d a0021-899500aCopolymerization of ethylene with unsaturated alcohols and methylmethacrylate using a silylated alpha-diimine nickel catalyst: molecular modeling and photodegradation studies0 aCopolymerization of ethylene with unsaturated alcohols and methy a111 RIVER ST, HOBOKEN 07030-5774, NJ USAbWILEY-BLACKWELLcAUG a1820-18320 v1293 a

In this article, the experimental results obtained in the copolymerization of ethylene with polar monomers using a silylated -diimine nickel catalyst are described and compared with those obtained with a non-silylate similar one. The results show that the introduction of a siliyl group in the para-position of the imine moiety turns the catalyst less sensitive toward polar functionalities. However, the reactivity observed in copolymerization reactions was found to be reduced both the global polymerization and incorporation rates. Molecular modeling calculation allowed us to understand both the preferred insertion mode and the intermediate product structures for E/MMA copolymerization. Photodegradation studies showed that the presence of polar groups in the copolymers increases their rate of oxidation and turn them more easily degradable. The stabilization performed by Tinuvin 770 showed that for long-exposure times, it is not very effective regardless it is only mixed or grafted to the copolymer. (c) 2012 Wiley Periodicals, Inc.

10aageing10acopolymers10aDegradation10agrafting1 aMatos, Ines1 aFernandes, Susete, N.1 aLiu, Hua-Rong1 aTevtia, Amit, K.1 aSingh, R., P.1 aManda, Lemos1 aLemos, Francisco1 aMarques, Maria, M. uhttps://library.ncl.res.in/content/copolymerization-ethylene-unsaturated-alcohols-and-methylmethacrylate-using-silylated-002242nas a2200313 4500008004100000022001400041245013900055210006900194260010600263300001000369490000700379520108700386653002701473653001601500653002001516653001501536653001901551653002101570100002101591700002001612700002801632700002501660700002401685700002101709700002801730700002201758700002001780856012801800 2014 eng d a0014-305700aPolystyrene/TiO2 composite electrospun fibers as fillers for poly(butylene succinate-co-adipate): Structure, morphology and properties0 aPolystyreneTiO2 composite electrospun fibers as fillers for poly aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcJAN a78-860 v503 a

In this work, composite polystyrene/titanium dioxide (PS/TiO2) electrospun fibers were used as a reinforcement for a poly(butylene succinate-co-adipate) (PBSA) matrix. The structure, morphology, mechanical properties and degradation behavior of such materials were investigated, finding that, as a function of their TiO2 content, the fibers exerted different effects. The main mechanism through which the fibers modified the structure and morphology of the polymer matrix is by altering its crystallization kinetics. The presence of TiO2 modified the roughness of the fibers and therefore affected the interfacial adhesion between the filler and the matrix. The modulus of PBSA was improved, even though the brittleness of the materials was increased by the presence of the fibers. Different amounts of TiO2 within the fibers allowed to tune the hydrolytic degradation rate of the composites. This paper shows the potential of using composite electrospun fibers as effective fillers for the preparation of polymer-based composites. (C) 2013 Elsevier Ltd. All rights reserved.

10aBiodegradable polymers10aDegradation10aelectrospinning10aMorphology10aNanocomposites10aPolycaprolactone1 aNeppalli, Ramesh1 aCausin, Valerio1 aBenetti, Edmondo, Maria1 aRay, Suprakas, Sinha1 aEsposito, Antonella1 aWanjale, Santosh1 aBirajdar, Mallinath, S.1 aSaiter, Jean-Marc1 aMarigo, Antonio uhttps://library.ncl.res.in/content/polystyrenetio2-composite-electrospun-fibers-fillers-polybutylene-succinate-co-adipate-001969nas a2200229 4500008004100000022001400041245013600055210006900191260010500260300001400365490000700379520107300386653001601459653000901475653002001484653002201504653000801526100002801534700002101562700002701583856012901610 2015 eng d a0256-111500aEfficient sorption and photocatalytic degradation of malachite green dye onto NiS nanoparticles prepared using novel green approach0 aEfficient sorption and photocatalytic degradation of malachite g aF.5, 119, ANAM-RO, SEONGBUK-GU, SEOUL 136-075, SOUTH KOREAbKOREAN INSTITUTE CHEMICAL ENGINEERScOCT a1986-19920 v323 a

The extract of the Asparagus racemosus leaf tissue works as a stabilizing and capping agent and assists the formation of stable colloidal nanoparticles. Nanoparticles were characterized using UV-vis spectrophotometer, photoluminescence, TEM, EDAX and XRD, respectively. Transmission electron microscopy followed by selected area electron diffraction pattern analysis indicated the formation of near spherical, polydispersed, crystalline NiS of diameter ranging from 4-27 nm. X-ray diffraction studies showed the formation of 110, 101, 300, 021, 220, 221, 131, 410, 401, 321, 330 and 021 planes of hexagonal NiS. EDAX analysis confirmed the presence of Ni and S in nanosphere. The maximum sorption capacity (q (m) ) of NiS nanoparticles for MG dye was found to be 64.85 mg/g. Decolorization as well as disintegration of malachite green under white light illumination was confirmed by LC-MS studies. Results of the present study suggest that nanosized NiS can play an instrumental role in photocatalytic degradation of malachite green dye present in water bodies.

10aDegradation10aFTIR10aMalachite Green10aNiS Nanoparticles10aTEM1 aPrasad, Kumar, Suranjit1 aPrajapati, Sheel1 aSelvaraj, Kaliaperumal uhttps://library.ncl.res.in/content/efficient-sorption-and-photocatalytic-degradation-malachite-green-dye-nis-nanoparticles-002260nas a2200241 4500008004100000022001400041245016300055210006900218260000800287300001600295490000700311520140300318653001901721653001401740653001601754653002601770653001301796653001401809100002601823700002801849700002101877856012001898 2016 eng d a1944-399400aMechanistic and spectroscopic investigations of Ru3+-catalyzed oxidative degradation of azidothymidine by heptavalent manganese at environmentally relevant pH0 aMechanistic and spectroscopic investigations of Ru3catalyzed oxi cDEC a28349-283620 v573 a

The rapid increase in the population across the world has increased the consumption of pharmaceutical substances. These pharmaceutical substances have penetrated into the water through various ways. Mechanistic and spectroscopic investigations of Ru3+-catalyzed oxidative degradation of azidothymidine (AZT) by heptavalent manganese was studied for the first time. The values of pH-dependent apparent second-order rate constant show that Ru3+ accelerates the rate of the oxidative degradation of AZT by heptavalent manganese eight times faster than uncatalyzed reaction. Ru3+ catalytic oxidative degradation of AZT by heptavalent manganese was greatly depending on the pH. The removal of the AZT by heptavalent manganese in the presence of Ru3+ shows unit order with respect to heptavalent manganese, Ru3+, and AZT. The influences of dielectric constant, ionic strength, pH, addition of monomer, variation in catalyst concentration, etc. on the rate of the reaction were studied thoroughly and discussed in detail. The eight different products produced during the reaction were analyzed using the high-resolution mass spectrometry. Activation parameters were determined from variation in temperature during the reaction. The catalytic plausible mechanism was projected in which Ru3+ is oxidized to higher oxidation states of ruthenium by heptavalent manganese at environmentally relevant pH.

10aAzidothymidine10acatalysis10aDegradation10aHeptavalent manganese10akinetics10aMechanism1 aKulkarni, Raviraj, M.1 aBhamare, Vijaykumar, S.1 aSanthakumari, B. uhttps://library.ncl.res.in/content/mechanistic-and-spectroscopic-investigations-ru3-catalyzed-oxidative-degradation01922nas a2200229 4500008004100000022001400041245013600055210006900191260000800260300001600268490000700284520112000291653001601411653001301427653001401440653001701454653001501471100002601486700002801512700002101540856013101561 2016 eng d a1944-399400aOxidative transformation of antiretroviral drug zidovudine during water treatment with permanganate: reaction kinetics and pathways0 aOxidative transformation of antiretroviral drug zidovudine durin cFEB a24999-250100 v573 a

The presence of the pharmaceutical substances in the water has been reported by many studies and has attracted attention across the world. The mechanistic insight into oxidation of antiretroviral drug zidovudine (ZDV) by potassium permanganate was investigated between the pH values 3.0 and 9.0. The pH-dependent second-order rate constants were determined and rate constants decreased with an increase in pH. The products of the reaction were identified by high-resolution mass spectrometry. A probable mechanism is proposed which involves the formation of an intermediate complex between permanganate and ZDV, which further undergoes degradation in subsequent fast steps to form various oxidized products. The different parameters like effect of initially added products, solvent polarity, ionic strength, temperature, and pH on the rate of the oxidative degradation of ZDV by permanganate were systematically studied. The various activation parameters were determined from the effect of variation in temperature on the oxidative degradation of ZDV by permanganate in acidic medium and discussed in detail.

10aDegradation10akinetics10aMechanism10aPermanganate10aZidovudine1 aKulkarni, Raviraj, M.1 aBhamare, Vijaykumar, S.1 aSanthakumari, B. uhttps://library.ncl.res.in/content/oxidative-transformation-antiretroviral-drug-zidovudine-during-water-treatment-permanganate02212nas a2200289 4500008004100000022001400041245016400055210006900219260011000288300001000398490000700408520106800415653003101483653002701514653002501541653003301566653001601599653003501615653001901650653002001669100001801689700002001707700002201727700002601749700002301775856012401798 2016 eng d a0376-471000aPhotocatalytic degradation of ciprofloxacin center dot HCl using Aeroxide (R) P-25 TiO2 photocatalyst: comparative evaluation of solar and artificial radiation0 aPhotocatalytic degradation of ciprofloxacin center dot HCl using aDR K S KRISHNAN MARG, PUSA CAMPUS, NEW DELHI 110 012, INDIAbNATL INST SCIENCE COMMUNICATION-NISCAIRcJAN a16-220 v553 a

The photocatalytic degradation of ciprofioxacin (CFX) has been investigated using Aeroxide (R) P-25 TiO2 photocatalyst in the presence of solar as well as artificial radiation. The effects of different operating parameters like initial concentration of CFX, catalyst loading, pH of solution and effect of co-existing ions on photocatalytic degradation of CFX have been investigated with a view to establish the optimum operating conditions. It is observed that as the initial concentration of CFX increases, the rate of photocatalytic degradation decreases. Optimum catalyst loading is observed at 1 g L-1 for CFX concentration of 100 mg L-1. Over the pH range 3-11, maximum degradation rate occurs at pH 9. The mechanism and intermediates formed during the photocatalytic degradation of CFX are discussed based on UPLC-MS/MS analysis. From kinetic studies, it is found that the photocatalytic degradation obeys pseudo-first order kinetics. The degradation rate constant using solar radiation is about 1.7 times higher than that under artificial radiation.

10aAdvanced oxidation process10aAeroxide (R) P-25 TiO210aArtificial radiation10aCiprofloxacin center dot HCl10aDegradation10aPharmaceutical micropollutants10aPhotocatalysis10aSolar radiation1 aShetty, Rohit1 aKothari, Gaurav1 aTambe, Amruta, S.1 aKulkarni, Bhaskar, D.1 aKamble, Sanjay, P. uhttps://library.ncl.res.in/content/photocatalytic-degradation-ciprofloxacin-center-dot-hcl-using-aeroxide-r-p-25-tio2-001647nas a2200253 4500008004100000022001400041245006000055210006000115260000800175490000600183520087800189653001601067653003401083653002801117653003001145653001601175653002401191100002001215700001501235700001501250700001701265700001901282856009201301 2017 eng d a2220-131900aSorption of metaldehyde using granular activated carbon0 aSorption of metaldehyde using granular activated carbon cSEP0 v73 a

In this work, the ability of granular activated carbon (GAC) to sorb metaldehyde was evaluated. The kinetic data could be described by an intra-particle diffusion model, which indicated that the porosity of the sorbent strongly influenced the rate of sorption. The analysis of the equilibrium sorption data revealed that ionic strength and temperature did not play any significant role in the metaldehyde uptake. The sorption isotherms were successfully predicted by the Freundlich model. The GAC used in this paper exhibited a higher affinity and sorption capacity for metaldehyde with respect to other GACs studied in previous works, probably as a result of its higher specific surface area and high point of zero charge.

10aDegradation10aDiffusion-controlled Sorption10aEnvironmental Pollution10aGranular Activated Carbon10aMetaldehyde10aSorption Adsorption1 aSalvestrini, S.1 aVanore, P.1 aBogush, A.1 aMayadevi, S.1 aCampos, L., C. uhttps://library.ncl.res.in/content/sorption-metaldehyde-using-granular-activated-carbon02279nas a2200229 4500008004100000022001400041245011500055210006900170260000800239300001200247490000800259520149000267653002401757653001801781653001601799653001401815653002501829100002201854700002001876700002401896856012901920 2022 eng d a0263-876200aIntensified hydrodynamic cavitation using vortex flow based cavitating device for degradation of ciprofloxacin0 aIntensified hydrodynamic cavitation using vortex flow based cavi cNOV a623-6320 v1873 a

The present work, for the first time, establishes degradation behavior of ciprofloxacin (CIP), a widely used fluoroquinolone group of antibiotics, using vortex flow based hydro-dynamic cavitation (HC) for low to high concentrations of CIP (10 and 100 mg/L). Effect of pressure on the degradation of CIP and TOC reduction was investigated on pilot plant scale (capacity 1 m3/h). Process intensifications using aeration as well as hydrogen per-oxide (H2O2) were also investigated. While aeration did not yield any significant en-hancement, process intensification using H2O2 resulted in similar to 200% enhancement in the CIP degradation as compared to HC alone. Excellent degradations, to an extent of 79 & 95%, were achieved corresponding to high cavitational yields of 7.2 x 10-4 mg/J and 86.8 x 10-4 mg/J for CIP concentrations of 10 and 100 mg/L respectively using the process intensified approach of HC and H2O2, not reported so far for cavitating devices without moving ele-ments. The developed methodology demonstrated 4-7 times improvement in per-pass degradation and low cost with high efficiency compared to the conventional cavitation. The results clearly highlight utility of the process intensified approach using H2O2 for the degradation of CIP even at high concentrations, specifically important for pharmaceutical industries requiring zero liquid discharge norms.(c) 2022 Institution of Chemical Engineers. Published by Elsevier Ltd. All rights reserved.

10aAntibiotics removal10aciprofloxacin10aDegradation10aOxidation10aWastewater treatment1 aPatil, Pravin, B.1 aThanekar, Pooja1 aBhandari, Vinay, M. uhttps://library.ncl.res.in/content/intensified-hydrodynamic-cavitation-using-vortex-flow-based-cavitating-device-degradation02273nas a2200229 4500008004100000022001400041245014000055210006900195260000800264300001200272490000800284520146600292653002301758653001601781653001401797653001501811653002501826100001701851700002001868700002401888856013101912 2023 eng d a0263-876200aDual activity cavitation reactors for increased efficacy in degradation of refractory pollutants-A case study on cephalexin degradation0 aDual activity cavitation reactors for increased efficacy in degr cAPR a310-3220 v1923 a

The present work discloses a new form of cavitation processes using reactors of dual activity for increased efficiency. A proof of concept is established for the degradation of a refractory pollutant-cephalexin using both conventional and dual function cavitation reactors for the first time using acoustic and hydrodynamic cavitation (HC). A vortex diode as a cavitating device was employed for HC using aluminium as a non-catalytic and copper as dual function device for providing additional catalytic effect. The process in-tensification using hydrogen peroxide (H2O2) coupled with the dual function devices was highly effective. A negligible degradation with only HC and 81% for HC coupled with H2O2 in 60 min for Al-vortex diode compared to 100% degradation in only 5 min for the copper device clearly demonstrates the order of magnitude enhancements establishing dual function due to catalytic activity. Also, pH modification (pH 11) yields enhancement over 300% for Cu-vortex diode. The use of dual function reactors drastically reduces H2O2 do-sage. The overall enhancements in the per pass degradation and cavitation yields were huge, similar to 3000% and 1450% respectively, highlighting the potential of the dual function ca-vitation reactors in real-life applications, not just for increased efficiencies but also for significantly reduced costs.(c) 2023 Institution of Chemical Engineers. Published by Elsevier Ltd. All rights reserved.

10aAdvanced oxidation10aDegradation10apollution10aTechnology10aWastewater treatment1 aDixit, Divya1 aThanekar, Pooja1 aBhandari, Vinay, M. uhttps://library.ncl.res.in/content/dual-activity-cavitation-reactors-increased-efficacy-degradation-refractory-pollutants-case02168nas a2200205 4500008004100000022001400041245011400055210006900169260000900238490000800247520143600255653001601691653001601707653002901723653003401752653001401786100001601800700001701816856012901833 2024 eng d a0014-305700aThiol-ene-based degradable 3D printed network from bio resource derived monomers ethyl-lactate and isosorbide0 aThiolenebased degradable 3D printed network from bio resource de cFEB 0 v2053 a

A polymeric ene-based thiol-ene network is reported that was demonstrated for light-based 3D printing. Allyl poly (acrylate ethyl lactate) (PAEL) was synthesized starting from ethyl lactate in an efficient and scalable manner. Ethyl lactate is a biobased material obtained naturally or chemically in high yields in the form of ethyl ester of lactic acid. Isosorbide, which is also a bio based resource was converted into thiol derivative and was used along with Pentaerythritol tetrakis(3-mercaptopropionate) (PETMP) as multifunctional thiol. The polymeric nature of the ene (i.e. PAEL) imparted exceptionally high mechanical properties like Young's modulus of 1.75 GPa as well as high thermal stability with a decomposition temperature (Td,10%) exceeding 350 C for all the networks studied. The properties could also be customized by fine tuning the type and stoichiometric ratio of the thiol crosslinked employed. For instance, the Young's modulus range from 1.75 GPa to 1.03 GPa and glass transition temperature range from 44 C to 54 C could be achieved. DLP 3D printing was used to demonstrate the printability of the resins with high resolution and structural fidelity. The study also highlights the basemediated rapid hydrolytic degradation efficiency of the 3D printed parts, demonstrating the applicability of these novel polymeric ene based thiol-ene for sustainable and eco-friendly 3D printable formulations.

10a3D printing10aDegradation10adigital light processing10aPoly (acrylate ethyl lactate)10aThiol-ene1 aPal, Shibam1 aAsha, S., K. uhttps://library.ncl.res.in/content/thiol-ene-based-degradable-3d-printed-network-bio-resource-derived-monomers-ethyl-lactate