Combustion synthesis of cadmium sulphide nanomaterials for efficient visible light driven hydrogen production from water

Abstract

Anion-doped cadmium sulphide nanomaterials have been synthesized by using combustion method at normal atmospheric conditions. Oxidant/fuel ratios have been optimized in order to obtain CdS with best characteristics. Formation of CdS and size of crystallite were identified by X-ray diffraction and confirmed by transmission electron microscopy. X-ray photoelectron spectroscopy confirmed the presence of C and N in the CdS matrix. The observed enhanced photocatalytic activity of the CdS nanomaterials for the hydrogen production from water (2120 μmol/h) can be attributed to high crystallinity, low band gap and less exciton recombination due to the C and N doping.

Metal sulfide-based nanomaterials for electrochemical CO2 reduction

“…The atoms/molecules are attached through covalent or non-covalent bonds. 91 The commonly used bottom-up approaches are chemical vapour decomposition, 92,93 atomic layer deposition, 94,95 spray pyrolysis, 96,97 pulsed layer deposition, 98,99 thermal deposition, 100,101 combustion, 102,103 micro-emulsion, 104,105 precipitation, 106,107 hydrothermal, [108][109][110][111] solvothermal, 112,113 suldation, 114,115 microwave irradiation, [116][117][118] and electrodeposition. 119,120 Thus, the strong connections between the various nanomaterials and their unique properties have encouraged research to perform the controlled fabrication of noble electrocatalysts with modi-ed nanostructures.…”