Loading of Co₃O₄ onto Pt-modified nitrogen-doped TiO₂ nanocomposites promotes photocatalytic hydrogen production

Abstract

Photocatalytic water splitting has been considered as one of the most promising methods to produce hydrogen as a source of clean fuel. Use of co-catalysts and elemental doping in TiO 2 has been extensively explored for effective photocatalysis. Here we report the synthesis of visible light responsive and Pt on the N-TiO 2 nanoparticles, showed much higher photocatalytic activity for hydrogen production than that prepared by the one-step method, where Co 3 O 4 is evenly dispersed in N-TiO 2 .The position of the co-catalyst Co 3 O 4 in TiO 2 has a significant effect on the photocatalytic properties of the prepared photocatalysts.

Clay-Supported Metal Oxide Nanoparticles in Catalytic Advanced Oxidation Processes: A Review

“…Some research has evaluated the increased catalytic efficiency related to the cost-effectiveness and catalyst capabilities. For example, the dispersion of Pt nanoparticles into mesoporous Co 3 O 4 was reported to increase the catalytic oxidative degradation efficiency toward methylene blue (MB) dye, with almost 100% removal after 60 min of treatment [ 64 , 65 ]. Similar results were recorded from supported ZnO nanoparticles using zeolite [ 66 , 67 ], supported iron nanoparticles using zeolite [ 68 , 69 ], and supported Au nanoparticles into TiO 2 and BiVO 4 [ 70 , 71 ].…”

Facile synthesis of copper doped ZnO nanorods for the efficient photo degradation of methylene blue and methyl orange

“…Also, photo catalysis is economic, nontoxic, consumes less energy, and can be reused [6]. Several, photocatalysts are developed and among them oxide semiconductors are found to be efficient for the photodegradation such as TiO2 [7,8] that is intensively used due to its strong absorption in the UV region. However, TiO2 is associated with certain limitations such as high recombination rate, low quantum yield [9] in water media and wide band gap.…”