可见光响应型Pt/GaP纳米粉体的光催化性质

doi:10.3724/SP.J.1077.2011.00579

无机材料学报 ›› 2011, Vol. 26 ›› Issue (6): 579-584.DOI: 10.3724/SP.J.1077.2011.00579

可见光响应型Pt/GaP纳米粉体的光催化性质

黄溢淳, 张兆春, 姜惠轶

(上海大学材料科学与工程学院, 上海 200072)

收稿日期:2010-08-22 修回日期:2010-12-14 出版日期:2011-06-20 网络出版日期:2011-06-07
作者简介:黄溢淳(1989-), 男. E-mail: mynameisdante@yahoo.cn
基金资助:
上海大学大学生创新实践活动项目(CXSJ08-066)

Photocatalytic Properties of Pt/GaP Nanoparticles under Visible Light Irradiation

HUANG Yi-Chun, ZHANG Zhao-Chun, JIANG Hui-Yi

(School of Material Science and Engineering, Shanghai University, Shanghai 200072, China)

Received:2010-08-22 Revised:2010-12-14 Published:2011-06-20 Online:2011-06-07
Supported by:
Students Innovation Practice Activity Program of Shanghai University (CXSJ08-066)

摘要/Abstract

摘要： 利用水合肼液相还原法在纳米磷化镓(GaP)粉体表面沉积贵金属铂(Pt), 制备低Pt担载量Pt(0.80 wt%)/GaP和高Pt担载量Pt(4.2 wt%)/GaP纳米粉体样品. 在可见光照射条件下, 分别以GaP和Pt/GaP纳米粉体作为光催化剂, 对结晶紫水溶液进行光催化降解. 实验结果表明, GaP和Pt/GaP两种纳米粉体皆具有可见光响应光催化性能; Pt担载量对Pt/GaP纳米粉体的光催化性能有着较大的影响, 低Pt担载量Pt(0.80 wt%)/GaP纳米粉体的结晶紫光催化脱色率高于GaP纳米粉体, 而高Pt担载量Pt(4.2 wt%)/GaP粉体的结晶紫光催化脱色率则低于GaP纳米粉体.

关键词: 纳米粉体, 磷化镓, 铂, 光催化, 结晶紫

Abstract: Gallium phosphide (GaP) nanoparticle was synthesized by the reaction of sodium phosphide and gallium chloride in dimethylbenzene. GaP-supported platinum photocatalysts, Pt(0.80wt%)/GaP and Pt(4.2wt%)/ GaP nanoparticles, were prepared by the simple reduction of chloroplatinic acid (H₂PtCl₆) with hydrazine hydrate (N₂H₄·H₂O). The photocatalytic activities of GaP and Pt/GaP nanoparticles for the decomposition of crystal violet were investigated under visible light irradiation. The results indicate that GaP, Pt(0.80wt%)/GaP and Pt(4.2wt%)/GaP nanoparticles can harness visible light to decompose crystal violet in aqueous solution. The photocatalytic activity of Pt(0.80wt%)/GaP is better than that of GaP while the photocatalytic activity of GaP is better than that of Pt(4.2wt%)/GaP. The Pt coverage has an important effect on the photocatalytic activity of Pt/GaP nanoparticles.

Key words: nanoparticles, gallium phosphide, platinum, photocatalysis, crystal violet

中图分类号:

O649

黄溢淳, 张兆春, 姜惠轶. 可见光响应型Pt/GaP纳米粉体的光催化性质[J]. 无机材料学报, 2011, 26(6): 579-584.

HUANG Yi-Chun, ZHANG Zhao-Chun, JIANG Hui-Yi. Photocatalytic Properties of Pt/GaP Nanoparticles under Visible Light Irradiation[J]. Journal of Inorganic Materials, 2011, 26(6): 579-584.

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可见光响应型Pt/GaP纳米粉体的光催化性质

Photocatalytic Properties of Pt/GaP Nanoparticles under Visible Light Irradiation

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