@article { ISI:000269139900042, title = {Photoluminescence and gas sensing study of nanostructured pure and Sn doped ZnO}, journal = {Materials Science \& Engineering C-Biomimetic and Supramolecular Systems}, volume = {29}, number = {4}, year = {2009}, month = {MAY}, pages = {1317-1320}, publisher = {ELSEVIER SCIENCE BV}, address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS}, abstract = {

The nanostructured pure and Sn doped ZnO have been synthesized by the thermal evaporation technique. The influence of Sri oil the morphology and structure is investigated by using scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy dispersive X-ray (EDX) analysis techniques, The SEM images indicate change in the growth pattern from nanowires of pure ZnO to tetrapods for Sn doped ZnO. Pure ZnO nanowires exhibit selective response towards acetone vapors while on Sri doping the response decreases. The non-stiochiometry and the morphology of ZnO arc probably responsible for such a difference in gas response. However increase in temperature doesn{\textquoteright}t improve the sensing behavior. The photoluminescence (PL) Studies reveal UV emission in pure ZnO which shifts to green emission oil doping of Sri. All rights reserved. (C) 2008 Elsevier B V. All rights reserved.

}, keywords = {Acetone, Gas sensors, Sn doped ZnO}, issn = {0928-4931}, doi = {10.1016/j.msec.2008.09.050}, author = {Navale, Shalaka C. and Mulla, Imtiaz S.} } @article { ISI:000331828400019, title = {Enhanced mineralization of gaseous organic pollutant by photo-oxidation using Au-Doped TiO2/MCM-41}, journal = {Water Air and Soil Pollution}, volume = {225}, number = {2}, year = {2014}, month = {FEB}, pages = {1847}, publisher = {SPRINGER}, type = {Article}, address = {VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS}, abstract = {

The synthesis, characterization, and photocatalytic evaluation of titania-loaded MCM-41 with and without Au doping are reported in the present study. The samples were characterized by powder XRD, TEM, low temperature N-2 adsorption/desorption, UV-Vis, and FTIR. UV-induced vapor-phase photo-oxidation of acetone was used as a probe reaction to study the role of Au in mineralization of volatile organic compounds (VOCs), viz. acetone at different concentrations. The doping of Au in titania-loaded MCM-41 resulted in the decrease of BET surface area, total pore volume, and average pore size. UV-Vis diffuse reflectance spectra of Au-doped titania-loaded MCM-41 showed the red shift in their absorption bands compared to titania-loaded MCM-41. The activity of mineralization of acetone by photocatalysis for 2 \% Au-doped titania-loaded MCM-41 was found to be similar to 1.6 times higher than titania-loaded MCM-41. The presence of cocatalytic nanosized gold might be responsible for their enhanced activity on account of the delayed recombination of electron/hole pair. Although, almost complete mineralization of acetone was observed irrespective of the initial concentration of acetone in air (up to 3.72 mol\%) by all the catalysts, 2 wt.\% Au-doped titania-loaded MCM-41 has shown the most enhanced activity.

}, keywords = {Acetone, Doping, Gold, Mineralization of VOCs, Photo-oxidation, TiO2/MCM-41}, issn = {0049-6979}, doi = {10.1007/s11270-013-1847-z}, author = {Tangale, Nilesh P. and Belhekar, Anuja A. and Kale, Kishor B. and Awate, Shobhana V.} } @article {44016, title = {New insight into sugarcane industry waste utilization (press mud) for cleaner biobutanol production by using c. acetobutylicum nrrl b-527}, journal = {Applied Biochemistry and Biotechnology}, year = {2017}, month = {MAY}, chapter = {1-18}, abstract = {

In the present study, press mud, a sugar industry waste, was explored for biobutanol production to strengthen agricultural economy. The fermentative production of biobutanol was investigated via series of steps, viz. characterization, drying, acid hydrolysis, detoxification, and fermentation. Press mud contains an adequate amount of cellulose (22.3\%) and hemicellulose (21.67\%) on dry basis, and hence, it can be utilized for further acetone-butanol-ethanol (ABE) production. Drying experiments were conducted in the temperature range of 60{\textendash}120 {\textdegree}C to circumvent microbial spoilage and enhance storability of press mud. Furthermore, acidic pretreatment variables, viz. sulfuric acid concentration, solid to liquid ratio, and time, were optimized using response surface methodology. The corresponding values were found to be 1.5\% (v/v), 1:5 g/mL, and 15 min, respectively. In addition, detoxification studies were also conducted using activated charcoal, which removed almost 93{\textendash}97\% phenolics and around 98\% furans, which are toxic to microorganisms during fermentation. Finally, the batch fermentation of detoxified press mud slurry (the sample dried at 100 {\textdegree}C and pretreated) using Clostridium acetobutylicum NRRL B-527 resulted in a higher butanol production of 4.43 g/L with a total ABE of 6.69 g/L. {\textcopyright} 2017 Springer Science+Business Media New York Author keywords

}, keywords = {Acetone, Acetone butanol ethanols, Acidic pre treatments, Agriculture, Biobutanol, cellulose, Clostridium acetobutylicum, Detoxification, Drying, Drying Fermentation, FermentationSpoilage, Fermentative production, Pre-treatment, Press mud, Press mud Pretreatment, Response surface methodology, Sugar industry, Sulfur determination}, issn = {0273-2289}, doi = {10.1007/s12010-017-2479-3}, author = {Nimbalkar, Pranhita R. and Khedkar, Manisha A. and Gaikwad, S. G. and Chavan, Pramod V. and Bankar, Sandip B.} }