Fe2O3-CeO2/生物炭活化过硫酸盐处理有机污染物

doi:10.11894/iwt.2019-1110

工业水处理 ›› 2020, Vol. 40 ›› Issue (7): 24-28. doi: 10.11894/iwt.2019-1110

Fe₂O₃-CeO₂/生物炭活化过硫酸盐处理有机污染物

仙光^1,²(),李乾岗¹,张光明^1,*(),阳帆¹,魏婷¹,张毅³,邹志国³

1. 中国人民大学环境学院, 北京 100872
2. 陆军勤务学院军事设施系, 重庆 401311
3. 山东公用控股有限公司, 山东济宁 277200

收稿日期:2020-05-01 出版日期:2020-07-20 发布日期:2020-07-21
通讯作者: 张光明 E-mail:lightxg@126.com;zgm@ruc.edu.cn
作者简介:仙光(1988-), 博士。E-mail:lightxg@126.com
基金资助:
国家水体污染控制与治理科技重大专项(2018ZX07110003);山东省重点研发计划(2018CXGC1007)

Treatment organic pollutants by persulfate activated with Fe₂O₃-CeO₂/biochar

Guang Xian^1,²(),Qiangang Li¹,Guangming Zhang^1,*(),Fan Yang¹,Ting Wei¹,Yi Zhang³,Zhiguo Zou³

1. School of Environment & Natural Resource, Renmin University of China, Beijing 100872, China
2. Department of Military Installations, Army Logistics University of PLA, Chongqing 401311, China
3. Shandong Public Holdings Limited, Jining 277200, China

Received:2020-05-01 Online:2020-07-20 Published:2020-07-21
Contact: Guangming Zhang E-mail:lightxg@126.com;zgm@ruc.edu.cn

摘要/Abstract

摘要：

制备了Fe₂O₃-CeO₂/生物炭（BC）催化剂，用于活化过硫酸盐（PS）处理有机污染物。考察了各因素对污染物去除效果的影响。结果表明：Fe₂O₃-CeO₂/BC孔结构发达、表面积大，表面存在Fe²⁺/Fe³⁺、Ce³⁺/Ce⁴⁺电对和氧空位，利于催化反应；Fe₂O₃-CeO₂和BC有协同作用，最优条件下酸性橙7去除率达80.1%，催化剂重复利用性良好；Fe₂O₃-CeO₂/BC+PS体系pH适用范围宽（4~8），可处理多种有机污染物和实际水体中的污染物，具备一定应用潜力。

关键词: Fe₂O₃-CeO₂, 生物炭, 过硫酸盐, 有机污染物, 染料

Abstract:

A novel catalyst Fe₂O₃-CeO₂/biochar(BC) was synthesized for activating persulfate(PS) to remove organic pollutants. The effects of various factors on the removal of pollutants were investigated. The results showed that the abundant pore structure, high surface area, surface Fe²⁺/Fe³⁺, Ce³⁺/Ce⁴⁺ redox couples and oxygen vacancies of Fe₂O₃-CeO₂/BC were conducive to the catalytic reaction. There was a synergy between Fe₂O₃-CeO₂ and BC in the catalytic removal process. Under the optimal conditions, the removal rate of acid orange 7 reached 80.1%, and good reusability of the catalyst was achieved. Moreover, the wide pH range of 4-8, treatment of multiple organics and pollutants in actual water showed a certain application potential of Fe₂O₃-CeO₂/BC+PS.

Key words: Fe₂O₃-CeO₂, biochar, persulfate, organic pollutant, dye

中图分类号:

X703.5

仙光,李乾岗,张光明,阳帆,魏婷,张毅,邹志国. Fe₂O₃-CeO₂/生物炭活化过硫酸盐处理有机污染物[J]. 工业水处理, 2020, 40(7): 24-28.

Guang Xian,Qiangang Li,Guangming Zhang,Fan Yang,Ting Wei,Yi Zhang,Zhiguo Zou. Treatment organic pollutants by persulfate activated with Fe₂O₃-CeO₂/biochar[J]. Industrial Water Treatment, 2020, 40(7): 24-28.

https://www.iwt.cn/CN/Y2020/V40/I7/24

图/表 6

图1 Fe₂O₃-CeO₂/BC催化剂的表征

图2 不同体系对AO7的去除效果

图3 PS浓度对AO7去除率的影响

图4 Fe₂O₃-CeO₂/BC投加量对AO7去除率的影响

图5 初始pH对AO7去除率的影响

图6 Fe₂O₃-CeO₂/BC活化PS处理AO7、MO、RhB混合污染的效果

参考文献 18

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