施氏矿物对液相和土壤中苯酚的芬顿催化氧化效果

马庆朋; 杨凯; 曾泳钦; 毕学; 周燕; 张琢

doi:10.13205/j.hjgc.202306016

施氏矿物对液相和土壤中苯酚的芬顿催化氧化效果

doi: 10.13205/j.hjgc.202306016

马庆朋¹,
杨凯¹,
曾泳钦¹,
毕学²,
周燕²,
张琢^3, ,

1. 中电建生态环境集团有限公司, 广东深圳 515833;
2. 北京润鸣环境科技有限公司, 北京 102627;
3. 中国地质大学(北京) 土地科学技术学院, 北京 100083

基金项目:

国家青年科学基金（41907131）

详细信息

作者简介:
马庆朋(1976-),男,硕士,高级工程师,主要研究方向为土壤修复工程技术与管理方面。maqp-shj@powerchina.cn

通讯作者:
张琢(1985-),女,博士,副教授,主要研究方向为土壤修复一新技术及土壤修复材料。zhangzhuo@cugb.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2022-05-12
- 网络出版日期: 2023-09-02

PERFORMANCE OF SCHWERTMANNITE IN FENTON-LIKE OXIDATION OF PHENOL IN LIQUID PHASE AND SOIL

1. Power China Eco-Environment Group Co., Ltd., Shenzhen 515833, China;
2. Beijing Junmei Environmental Technology Co., Ltd., Beijing 102627, China;
3. School of Land Science and Technology, China University of Geosciences (Beijing), Beijing 100083, China

摘要

摘要: 施氏矿物（Sch）因其独特的高铁含量和结构特性，在类芬顿反应过程中对苯酚（C₆H₅OH）催化氧化过程表现出潜在的高反应性能。通过化学氧化方法合成多相类芬顿型催化剂Sch，并用于液相及污染土壤中的C₆H₅OH催化氧化降解过程。该合成矿物具有典型海胆状结构、有序形貌特征和特定孔径尺寸的微纳孔结构。研究Sch材料在水相和不同pH乙醇相中对C₆H₅OH氧化过程的催化效果发现，当pH<7时，C₆H₅OH去除率可达到98%。当Sch材料以1.25%或2.5%的质量分数添加到中性或近酸性C₆H₅OH污染土壤时，可使C₆H₅OH含量由初始值6.052 mg/kg降至0.2 mg/kg以下。该材料在苯酚污染土壤的实际治理修复工程中具有极大的应用前景。
- 施氏矿物 /
- 芬顿 /
- 苯酚 /
- 氧化 /
- 水 /
- 土壤
Abstract: Schwertmannite (Sch) presents high catalytic properties potential for phenol oxidation in a Fenton-like mechanism, because of its unique combination of Fe composition and structure characteristics. In this study, Sch was fabricated as a heterogeneous Fenton-like catalyst through chemical oxidation, for phenol degradation in polluted water and soil. The synthetic minerals have a typical sea-urchin-like structure and ordered morphology with unique channels of a specific size range. The catalytic performance of Sch for phenol oxidation in water and alcohol with various pH values was investigated. Under an acidic pH, nearly 98% of phenol was successfully removed. When Sch material was added to neutral or nearly acidic C₆H₅OH contaminated soil at a mass ratio of 1.25% or 2.5%, the concentration of C₆H₅OH could be reduced from 6.052 mg/kg to less than 0.2 mg/kg. The material had great potential application prospect in actual remediation projects of phenol polluted soil.
- Schwertmannite /
- Fenton /
- phenol /
- oxidation /
- water /
- soil

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