Visible light photocatalytic reduction of Cr(VI) on Ag3PO4 nanoparticles

被引：10

作者：

Huang, Heyong ^{[1
,2
]}

Feng, Yuying ^{[1
,2
]}

Zhou, Jiahong ^{[1
,2
]}

Li, Gang ^{[1
]}

Dai, Kewei ^{[1
]}

机构：

[1] Nanjing Normal Univ, Anal & Testing Ctr, Sch Geog Sci, Nanjing 210046, Jiangsu, Peoples R China

[2] Key Lab Biofunct Mat Jiangsu Prov, Nanjing 210046, Jiangsu, Peoples R China

来源：

DESALINATION AND WATER TREATMENT | 2013年 / 51卷 / 37-39期

基金：

中国国家自然科学基金;

关键词：

Ag3PO4; nanoparticles; Cr(VI); Photocatalytic reduction; TIO2; PHOTOCATALYSIS; IRRADIATION; SEMICONDUCTOR; CHROMIUM(VI); WATER;

D O I：

10.1080/19443994.2013.779598

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Ag3PO4 nanoparticles of approximate to 300nm were synthesized by an ion-exchange reaction between AgNO3 and (NH4)(2)HPO4 at ambient condition. X-ray powder diffraction, scanning electron microscopy, UV-Vis diffuse reflectance spectroscopy were employed to investigate the phase structure, morphology, and optical property of the Ag3PO4 nanoparticles. Nearly 80% of Cr(VI) ions was removed after visible-light irradiation in Ag3PO4 suspension, the excellent photocatalytic reduction performance due to the high separation efficiency of electron and hole pairs. In addition, the possible photoreduction mechanism of Cr(VI) in Ag3PO4 suspension was discussed. The system of Ag3PO4 may provide an alternative way for the efficient removal of Cr(VI) under visible-light irradiation.

引用

页码：7236 / 7240

页数：5

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