Preparation and Photocatalytic Hydrogen Production Properties of Mesoporous CdS/TiO2 Composites

Autor:	Xiangting Dong, Ren-rong Zheng, Xiao-Li Wang, Hui Yu
Rok vydání:	2020
Předmět:	Materials science Photocatalysis General Materials Science Composite material Condensed Matter Physics Mesoporous material Hydrogen production
Zdroj:	Nano. 15:2050019
ISSN:	1793-7094 1793-2920
DOI:	10.1142/s1793292020500198
Popis:	The mesoporous CdS/TiO2 composites were synthesized by a sol–gel method combined with solvothermal method. The material showed the gel block-like structures which were composed of heterogeneous spherical gel particles, the average size of the particles was about 14[Formula: see text]nm, with specific surface area as 300.254[Formula: see text]m2[Formula: see text]g[Formula: see text]. The mesoporous CdS/TiO2 composites exhibited a wide absorption band to simulated sunlight whose adsorb wavelength reached to 550[Formula: see text]nm, its absorption intensity and catalytic performance of photocatalytic water-producing hydrogenation were also increased with the increase of CdS contents. When the molar ratio of TiO2:CdS was 1:1, the photocatalytic activity reached the highest, and the average hydrogen production rate reached 2167.32[Formula: see text][Formula: see text]mol[Formula: see text]g[Formula: see text][Formula: see text]h[Formula: see text].
Databáze:	OpenAIRE
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