Salt templated synthesis of NiO/TiO2 supported carbon nanosheets for photocatalytic hydrogen production

被引：39

作者：

Zhao, Xueying ^{[1
]}

Xie, Wenyu ^{[2
]}

Deng, Zhibo ^{[3
]}

Wang, Gan ^{[1
]}

Cao, Aihui ^{[1
]}

Chen, Huamei ^{[1
]}

Yang, Bo ^{[1
]}

Wang, Zhuan ^{[1
]}

Su, Xintai ^{[3
]}

Yang, Chao ^{[1
]}

机构：

[1] Xinjiang Univ, Coll Chem & Chem Engn, Minist Key Lab Oil & Gas Fine Chem, Urumqi 830046, Peoples R China

[2] Guangdong Univ Petrochem Technol, Fac Environm Sci & Engn, Maoming 525000, Peoples R China

[3] South China Univ Technol, Sch Environm & Energy, Key Lab Pollut Control & Ecosyst Restorat Ind Clu, Minist Educ, Guangzhou 510006, Guangdong, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2020年 / 587卷

基金：

中国国家自然科学基金;

关键词：

Defect TiO2; Co-catalyst; TiO2/C; Photocatalytic H-2 production; Molten salt method; ELECTROCHEMICAL ENERGY-STORAGE; DOPED ZRO2 NANOPARTICLES; HIGH-PERFORMANCE; REDUCED TIO2-X; EVOLUTION; HETEROJUNCTIONS; NIO; COCATALYST; NANOFIBERS; FACILE;

D O I：

10.1016/j.colsurfa.2019.124365

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

NiO-TiO2-x/C composites for photo-catalytic hydrogen production have been prepared by a molten salt template-assisted pyrolysis of Ni/Ti-oleylamine precursors at different temperatures. X-ray diffraction (XRD) analysis shows that it is brookite structure, and X-ray photoelectron spectrum (XPS) determines the chemical state of the elements. Carbon nanosheets improve the dispersion and stability of TiO2, making the later fully close to each other. NiO facilitates the separation of photo-generated carriers and enhances the photocatalytic hydrogen production activity of TiO2. Due to the efficient synergy of carbon nanosheets, NiO, and TiO2, the optimized (1 wt%)NiO-TiO2-x/C-T650 nanocomposites show enhanced activity toward photocatalytic hydrogen production from water, outperforming 18-fold in activity higher than pristine TiO2-x/C. Moreover, the (1 wt%)NiO-TiO2-x/C-T650 catalyst exhibits good stability without obvious decrease in activity under continuous cycling. This work will lead to the optimization of carbon-supported multi-component catalysts for photocatalytic hydrogen production.

引用

页数：8