Enhanced Hydrogen Production from Water over Ni Doped ZnIn2S4 Microsphere Photocatalysts

被引：52

作者：

Jing, Dengwei ^{[1
]}

Liu, Maochang ^{[1
]}

Guo, Liejin ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab MFPE SKMFPE, Sch Energy & Power Engn, Xian 710049, Peoples R China

来源：

CATALYSIS LETTERS | 2010年 / 140卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

Microsphere; Photocatalyst; Hydrogen Production; Doping; VISIBLE-LIGHT IRRADIATION; EVOLUTION;

D O I：

10.1007/s10562-010-0442-9

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：

Ni2+ doped ZnIn2S4 microsphere with flower-like nanoscale petals were prepared by a hydrothermal method. There was an optimal Ni doping content of 0.3 wt% where hydrogen production reached the maximum. Higher Ni2+ doping can hardly dope into the ZnIn2S4 lattice and just stay at ZnIn2S4 surface, leading to decreased activity. It was determined that Ni2+ entering the ZnIn2S4 lattice instead of surface NiS dominated the enhanced photocatalytic activity. The experimental results were rationalized by assuming Ni2+ serving as shallow trapping sites, greatly enhancing the activity of the photocatalyst. N

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页码：167 / 171

页数：5

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