高分散型纳米级Pd/Fe对4-氯苯酚的还原脱氯

doi:10.3969/j.issn.0438-1157.2013.03.043

化工学报 ›› 2013, Vol. 64 ›› Issue (3): 1091-1098.DOI: 10.3969/j.issn.0438-1157.2013.03.043

高分散型纳米级Pd/Fe对4-氯苯酚的还原脱氯

赵德明¹, 李敏¹, 徐新华²

1. 浙江工业大学化学工程与材料学院,浙江杭州 310032;
2. 浙江大学环境与资源学院,浙江杭州 310027

收稿日期:2012-07-16 修回日期:2012-10-11 出版日期:2013-03-05 发布日期:2013-03-05
通讯作者: 赵德明(1976—),男,副教授,博士后。
作者简介:赵德明(1976—),男,副教授,博士后。
基金资助:
浙江省自然科学基金项目(Y5100075);浙江省科技厅公益技术研究社会发展项目(2012C23044)。

Reductive dechlorination of 4-chlorophenol by highly dispersed Pd/Fe nanoparticles

ZHAO Deming¹, LI Min¹, XU Xinhua²

1. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310032, Zhejiang, China;
2. College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310027, Zhejiang, China

Received:2012-07-16 Revised:2012-10-11 Online:2013-03-05 Published:2013-03-05
Supported by:
supported by the Natural Science Foundation of Zhejiang Province(Y5100075)and the Science and Technology Department of Zhejiang Province(2012C23044).

摘要/Abstract

关键词: 超声波, 高分散型纳米级Pd/Fe, 4-氯苯酚, 动力学

Abstract: Highly dispersed Pd/Fe nanoparticles were prepared by using ultrasound-assisted liquid phase reductive method,and used for reductive dechlorination of 4-chlorophenol(4-CP).The affecting factors and degradation kinetics were investigated.The experimental results showed that:obvious modification was achieved on the particle size,most of them less than 100nm,and on specific surface areas,increased 43.42%.The efficiency of 4-CP reductive dechlorination was up to 97% on the Pd/Fe nanoparticles with Pd mass fraction 0.2% and its dosage 2.5 g·L^-1 at the conditions:time 300 min,initial 4-CP concentration 20 mg·L^-1,pH value 3.0,and reaction temperature 30℃.The degradation reaction of 4-CP followed pseudo-first-order kinetics and the apparent pseudo-first-order kinetics constant was 1.76×10^-2 min^-1.

Key words: ultrasound, highly dispersed Pd/Fe nanoparticles, 4-chlorophenol, kinetics

中图分类号:

X78
TQ209

赵德明, 李敏, 徐新华. 高分散型纳米级Pd/Fe对4-氯苯酚的还原脱氯[J]. 化工学报, 2013, 64(3): 1091-1098.

ZHAO Deming, LI Min, XU Xinhua. Reductive dechlorination of 4-chlorophenol by highly dispersed Pd/Fe nanoparticles[J]. CIESC Journal, 2013, 64(3): 1091-1098.

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高分散型纳米级Pd/Fe对4-氯苯酚的还原脱氯

Reductive dechlorination of 4-chlorophenol by highly dispersed Pd/Fe nanoparticles

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