02516nas a2200241   4500008004100000022001400041245017300055210006900228260011000297300001600407490000600423520150400429100002201933700002701955700002601982700003102008700002202039700002502061700002002086700001802106700002002124856013002144       2016                        eng d  a2046-206900aSunlight assisted degradation of dye molecules and reduction of toxic Cr(VI) in aqueous medium using magnetically recoverable Fe3O4/reduced graphene oxide nanocomposite0 aSunlight assisted degradation of dye molecules and reduction of   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJAN  a11049-110630 v63 a<p>In view of the significant impact of magnetically recoverable catalysts in photocatalytic applications, Fe3O4/reduced graphene oxide (rGO) nanocomposite photocatalyst was synthesized by adopting an eco-friendly solution chemistry approach and has been characterized by high resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and photoluminescence (PL) spectroscopy. Fe3O4/rGO nanocomposite is efficiently utilized towards photocatalytic degradation of carcinogenic and mutagenic cationic as well as anionic dye molecules namely methyl green (MG), methyl blue (MB) and rhodamine B (RhB) under direct sunlight irradiation. The Fe3O4/rGO nanocomposite also demonstrated excellent photocatalytic reduction of aqueous Cr(VI) solution to nontoxic aqueous Cr(III) solution of more than 96% within 25 min under sunlight irradiation. Moreover, reusability of the magnetically recovered photocatalyst was studied efficiently up to 10 cycles in the degradation process. The catalyst was also characterized after the degradation of the dye molecule and the particle size of the Fe3O4 nanoparticles on the rGO sheets remained unchanged. The present investigation focuses on the importance of the use of Fe3O4/rGO nanocomposite towards photocatalytic degradation of waste water containing organic dye pollutants and toxic Cr(VI), as an easily recoverable and reusable photocatalyst with potential for many environmental remediation applications.</p>1 aBoruah, Purna, K.1 aBorthakur, Priyakshree1 aDarabdhara, Gitashree1 aKamaja, Chaitanya, Krishna1 aKarbhal, Indrapal1 aShelke, Manjusha, V.1 aPhukan, Pallabi1 aSaikia, Dulen1 aDas, Manash, R.  uhttp://library.ncl.res.in/content/sunlight-assisted-degradation-dye-molecules-and-reduction-toxic-crvi-aqueous-medium-using-001745nas a2200241   4500008004100000022001400041245011100055210006900166260007300235300001200308490000800320520081500328653002201143653002701165653001901192653003801211100003101249700002901280700001601309700002401325700002501349856012901374       2016                        eng d  a0378-775300aSynthesis of novel Cu2S nanohusks as high performance counter electrode for CdS/CdSe sensitized solar cell0 aSynthesis of novel Cu2S nanohusks as high performance counter el  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY  a277-2830 v3153 a<p>An important component of quantum dot sensitized solar cells (QDSSC) is the counter electrode which mediates the regeneration of oxidized quantum dots by reducing the polysulphide electrolyte. However, design and synthesis of an efficient counter electrode material is a challenging task. Herein, we report the synthesis of a unique Cu2S nanohusks directly on FTO coated glass substrates by electrodeposition and used as a counter electrode in QDSSC. When these electrodes are used for the reduction of polysulfide electrolyte in QDSSC, they exhibit higher catalytic activity and photovoltaic performance as compared to the Platinum counter electrode. The power conversion efficiency of about 4.68% has been achieved by optimizing the deposition time of Cu2S. (C) 2016 Elsevier B.V. All rights reserved.</p>10acounter electrode10aCu2S electrodeposition10aCu2S nanohusks10aQuantum dot-sensitized solar cell1 aKamaja, Chaitanya, Krishna1 aDevarapalli, Rami, Reddy1 aDave, Yasha1 aDebgupta, Joyashish1 aShelke, Manjusha, V.  uhttp://library.ncl.res.in/content/synthesis-novel-cu2s-nanohusks-high-performance-counter-electrode-cdscdse-sensitized-solar