01617nas a2200241   4500008004100000022001400041245007700055210006900132260007100201300001400272490000700286520077800293100001701071700002101088700001901109700002901128700001801157700002201175700001901197700002401216700003001240856010501270       2009                        eng d  a0897-475600aElectronic structure and catalytic study of solid solution of GaN in ZnO0 aElectronic structure and catalytic study of solid solution of Ga  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJUL  a2973-29790 v213 a<p>Solid solutions of GaN in ZnO (Zn1-zGaz)(O1-xNx) (x and z &lt;= 0.15) have been prepared by simple solution combustion method, Except for minor changes in the lattice contraction, no significant change in the Wurtzite structure was observed. Raman and secondary ion mass spectrometry results show the direct Zn-N and Ga-N bonds in (Zn1-zGaz)(O1-xNx). Visible light absorption and XPS results demonstrate that N 2p states of nitride occupy the states above the O 2p valence band, and hence a change in optical band gap reduction occurs to similar to 2.5 eV from 3.37 eV for ZnO. Significant nitrogen fixation catalytic activity through NH3 formation has been observed at ambient pressure oil virgin (Zn1-zGaz)(O1-xNx) material, indicating its potential as a catalyst.</p>1 aMapa, Maitri1 aThushara, K., S.1 aSaha, Biswajit1 aChakraborty, Purushottam1 aJanet, C., M.1 aViswanath, R., P.1 aNair, Madhavan1 aMurty, K., V. G. K.1 aGopinath, Chinnakonda, S.  uhttps://library.ncl.res.in/content/electronic-structure-and-catalytic-study-solid-solution-gan-zno-002219nas a2200229   4500008004100000022001400041245009200055210006900147260009200216300001200308490000600320520138900326653001301715653001801728653001101746653000901757653002901766100001601795700002201811700003001833856012601863       2009                        eng d  a1533-488000aN,S-Co-doped TiO2 Nanophotocatalyst: synthesis, electronic structure and photocatalysis0 aNSCodoped TiO2 Nanophotocatalyst synthesis electronic structure   a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScJAN  a423-4320 v93 a<p>N,S-co-doped anatase-phase TiO2 (N,S-TiO2) nanophotocatalysts were prepared from either benzothiazoline or aminothiol with titanium isopropoxide followed by a systematic thermal decomposition. The chemical nature of S and N in N,S-TiO2 have been identified by XPS to be sulfate and NO-like, respectively. A significant band broadening and red-shift in the UV-visible absorption spectrum of N,S-TiO2 suggests a band gap reduction compared to TiO2. A maximum band-gap narrowing of 0.22 +/- 0.02 eV was observed on N,S-TiO2. Higher energy width observed on N,S-TiO2 is in contrast to 0.13 eV from N-doped TiO2 indicating the sulfate-like species might play a major role in narrowing the band-gap to a Higher level. It is confirmed that the oxidation of N and S to NO and SO42- occurs in the final stage of preparation of N,S-TiO2, during calcination in air. It is predicted that the oxygen associated with sulfate and NO structural features could be crucial in bringing down the energy gap and red shift in optical absorption and the role of sulfur is to facilitate the above. Photocatalytic decomposition of methylene blue has been carried out on N,S-TiO2 shows higher activity than the commercial TiO2 in the visible region. However, sulfate species seems to enhance the activity of N,S-TiO2 marginally compared to N-TiO2, and possible suggestions are given to improve the same.</p>10anitrogen10aPhotocatalyst10aSulfur10aTiO210aVisible Light Absorption1 aSathish, M.1 aViswanath, R., P.1 aGopinath, Chinnakonda, S.  uhttps://library.ncl.res.in/content/ns-co-doped-tio2-nanophotocatalyst-synthesis-electronic-structure-and-photocatalysis-0