Hydrothermal growth of Co3(OH)2(HPO4)2 nano-needles on LaTiO2N for enhanced water oxidation under visible-light irradiation

被引：32
|
作者：
Zhang, Yazhou [1 ]
Shi, Jinwen [1 ]
Cheng, Cheng [1 ]
Zong, Shichao [1 ]
Geng, Jiafeng [1 ]
Guan, Xiangjiu [1 ]
Guo, Liejin [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Multiphase Flow Power Engn MFPE, IRCRE, 28 West Xianning Rd, Xian 710049, Shaanxi, Peoples R China
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2018年 / 232卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Photocatalytic water oxidation; Cobalt phosphate; Hydrothermal method; Oxynitride; Heterojunction; LAYERED DOUBLE HYDROXIDE; PHOTOCATALYTIC ACTIVITY; PHOTOELECTROCHEMICAL PROPERTIES; COMPOSITE PHOTOCATALYST; SOLID-SOLUTIONS; EVOLUTION; COCATALYST; OXYNITRIDE; PHOSPHATE; PHOTOANODES;
D O I：
10.1016/j.apcatb.2018.03.067
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：
Co-3(OH)(2)(HPO4)(2)/LaTiO2N composites with a special microstructure were constructed by in-situ hydro thermally growing Co-3(OH)(2)(HPO4)(2) nano-needles on the surfaces of LaTiO2N irregular brick-like chunks. An effective heterojunction in the composites was formed based on the matched band structures and the close interfacial combination between Co-3(OH)(2)(HPO4)(2) and LaTiO2N, and thus improved the separation and transfer of photo-generated carriers. Consequently, photocatalytic O-2-evolution activity of the composites was enhanced up to 3.5 times that of LaTiO2N.
引用
收藏
页码：268 / 274
页数：7
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