02161nas a2200193   4500008004100000022001400041245014700055210006900202260011000271300001400381490000700395520131800402100002401720700002601744700002401770700002201794700002101816856013001837       2012                        eng d  a1463-926200aEco-friendly, highly stable and efficient nanostructured p-type N-doped ZnO photocatalyst for environmentally benign solar hydrogen production0 aEcofriendly highly stable and efficient nanostructured ptype Ndo  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUL  a2790-27980 v143 a<p>We have investigated an economical green route for the synthesis of a p-type N-doped ZnO photocatalyst by a wet chemical method. Significantly, hazardous H2S waste was converted into eco-friendly hydrogen energy using the p-type N-doped ZnO photocatalyst under solar light, which has previously been unattempted. The as-synthesized p-type N-doped ZnO shows a hexagonal wurtzite structure. The optical study shows a drastic shift in the band gap of the doped ZnO in the visible region (3.19-2.3 eV). The doping of nitrogen into the ZnO lattice is conclusively proved from X-ray photoelectron spectroscopy analysis and Raman scattering. The morphological features of the N-doped ZnO are studied from FESEM, TEM and reveal particle sizes to be in the range of similar to 4-5 nm. The N-doped ZnO exhibits enhanced photocatalytic hydrogen generation (similar to 3957 mu mol h(-1)) by photodecomposition of hydrogen sulfide under visible light irradiation, which is much higher as compared to semiconductor metal oxides reported so far. It is noteworthy that a green catalyst is investigated to curtail H2S pollution along with production of hydrogen (green fuel) using solar light, i.e., a renewable energy source. The green process investigated will have the potential to synthesize other N-doped metal oxides.</p>1 aBhirud, Ashwini, P.1 aSathaye, Shivaram, D.1 aWaichal, Rupali, P.1 aNikam, Latesh, K.1 aKale, Bharat, B.  uhttps://library.ncl.res.in/content/eco-friendly-highly-stable-and-efficient-nanostructured-p-type-n-doped-zno-photocatalyst-0