Enhanced Sunlight Photocatalytic Performance of Hafnium Doped ZnO Nanoparticles for Methylene Blue Degradation

被引：14

作者：

Ahmad, M. ^{[1
,2
,3
]}

Iqbal, Z. ^{[3
]}

Hong, Zhanglian ^{[1
,2
]}

Yang, Jingxia ^{[1
,2
]}

Zhang, Yuewei ^{[1
,2
]}

Khalid, N. R. ^{[1
,2
,3
]}

Ahmed, E. ^{[3
]}

机构：

[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China

[2] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

[3] Bahauddin Zakariya Univ, Dept Phys, Multan 60800, Pakistan

来源：

INTEGRATED FERROELECTRICS | 2013年 / 145卷 / 01期

基金：

中国博士后科学基金;

关键词：

Nanocrystalline ZnO; sol-gel synthesis; Hf-doped ZnO; photocatalysis; SOLVOTHERMAL PREPARATION; NANOSIZED TIO2; PROPERTY; POWDERS;

D O I：

10.1080/10584587.2013.788943

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A series of Hf-doped ZnO nanocatalysts were synthesized by sol-gel method with a doping content up to 6mol%. The structure, morphologies, and optical properties of the synthesized catalysts were characterized by XRD, TEM, FTIR and UV-Vis absorption spectrometer. The photocatalytic activity was evaluated by the Methylene Blue degradation in aqueous solution under sun light irradiation. Irradiation time and doping content had important effects on the photocatalytic activity of Hf-doped ZnO. Hafnium content had an optimum value of 2mol% for achieving high photocatalytic activity. The experiments demonstrated that MB was effectively degraded up to 85% within 120 minutes. It was confirmed that the presence of Hafnium in ZnO catalysts could enhance the photocatalytic oxidation.

引用

页码：108 / 114

页数：7

共 18 条

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