Facile synthesis of Ti3+ doped Ag/AgI-TiO2 nanoparticles with efficient visible-light photocatalytic activity

被引：22
|
作者：
Li, Xiaoliang [1 ,2 ]
Gao, Yi [1 ,2 ]
Liu, Jiawen [1 ,2 ]
Yu, Xin [3 ,4 ]
Li, Zhonghua [3 ]
机构：
[1] Harbin Normal Univ, Key Lab Photochem Biomat & Energy Storage Mat, Harbin 150025, Heilongjiang Pr, Peoples R China
[2] Harbin Normal Univ, Coll Chem & Chem Engn, Harbin 150025, Peoples R China
[3] Harbin Inst Technol, Key Lab Microsyst & Microstruct Mfg, Minist Educ, Harbin 150001, Peoples R China
[4] Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2017年 / 42卷 / 18期
基金：
中国国家自然科学基金;
关键词：
Facile synthesis; Ti3+ doped TiO2 nanoparticles; Plasmonic photocatalyst; Visible-light photocatalysis; Hydrogen production; SURFACE-PLASMON RESONANCE; TIO2; PHOTOCATALYSIS; HIGHLY EFFICIENT; QUANTUM DOTS; 001; FACETS; WATER; REDUCTION; SEMICONDUCTORS; COMPOSITES; CO2;
D O I：
10.1016/j.ijhydene.2017.04.071
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：
We successfully synthesized novel Ti3+ doped TiO2 and Ti3+ doped Ag/AgI-TiO2 nano particles with efficient visible-light photocatalytic activity for hydrogen production by facile one-step solvothermal method. The as-prepared Ti3+ doped TiO2 nanoparticles displayed excellent visible-light absorption and visible-light driven hydrogen production activity (115.3 umol g(-1) h(-1)), while the commercial TiO2 had no visible-light response. Moreover, the as-prepared Ti3+ doped Ag/AgI TiO2 nanoparticles in this experiment showed highly enhanced visible-light absorption and efficient visible-light driven activity for hydrogen (571.0 mu mol g(-1) h(-1)), which was 4.95 times as high as that of the as-prepared TiO2 nanoparticles. And the surface areas of the as-prepared TiO2 and Ti3+ doped Ag/AgI TiO2 catalysts were up to 138.829 m(2) g(-1) and 102.988 m(2) g(-1), much higher than that of the commercial TiO2 (55.516 m(2) g(-1) ). Finally, the visible-light photocatalytic mechanism of the Ti3+ doped Ag/AgI TiO2 nanoparticles for hydrogen generation was also proposed in detail. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：13031 / 13038
页数：8
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