梧桐叶提取液介导合成铁基纳米材料活化过硫酸盐降解土壤中的四溴双酚A

丛鑫; 孙美桢; 袁雪红; 李韬略; 薛南冬

doi:10.13205/j.hjgc.202305015

梧桐叶提取液介导合成铁基纳米材料活化过硫酸盐降解土壤中的四溴双酚A

doi: 10.13205/j.hjgc.202305015

丛鑫¹,
孙美桢^1,2,
袁雪红^2,3,
李韬略²,
薛南冬^2,3, ,

1. 辽宁工程技术大学环境科学与工程学院, 辽宁阜新 123000;
2. 生态环境部土壤与农业农村生态环境监管技术中心, 北京 100012;
3. 中国环境科学研究院, 北京 100012

基金项目:

国家重点研发计划重点专项(2016YFD0800202,2017YFD0800700)

详细信息

作者简介:
丛鑫(1976-),女,教授,主要研究方向为土壤环境化学。congxincx@yahoo.com.cn

通讯作者:
薛南冬(1964-),男,研究员,主要研究方向为有机污染物环境化学、土壤污染评估与修复。xuenandong@tcare-mee.cn

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出版历程
- 收稿日期: 2022-06-08

IRON-BASED NANOMATERIALS MEDIATED BY LEAF EXTRACTS FROM SYCAMORE ACTIVATE PERSULFATES TO CATALYZE TBBPA DEGRADATION IN SOIL

CONG Xin¹,
SUN Meizhen^1,2,
YUAN Xuehong^2,3,
LI Taolue²,
XUE Nandong^{2,3
, ,}

1. College of Environmental Science and Engineering, Liaoning Technical University, Fuxin 123000, China;
2. Technical Center for Soil, Agricultural and Rural Ecology and Environment, Ministry of Ecology and Environment of the People's Republic China, Beijing 100012, China;
3. Chinese Research Academy of Environmental Sciences, Beijing 100012, China

摘要

摘要: 四溴双酚A(TBBPA)降解是环境污染治理领域的研究热点。利用梧桐叶提取液介导合成的铁基纳米材料(T-Fe NPs)催化活化过硫酸盐(PS)降解土壤中TBBPA,优化了不同类型土壤(潮土、红壤、黄棕壤)对TBBPA的降解条件。采用Box-Behnken Design模型,分析不同因素(T-Fe NPs投加量、PS浓度、温度)及其交互作用对土壤TBBPA降解率的影响,得出不同土壤中TBBPA最佳降解条件。结果表明:1)T-Fe NPs能有效活化PS降解不同类型土壤中TBBPA,在红壤中降解效果较好。2)不同类型土壤中TBBPA的最佳降解条件存在差异,潮土中最优条件为:T-Fe NPs投加量6.39 g/kg,PS浓度31.26 mmol/L,温度20.73 ℃,降解率可达到71.72%;红壤中最佳条件为:T-Fe NPs投加量5.26 g/kg,PS浓度29.08 mmol/L,温度为49.80 ℃,降解率可达到87.87%;黄棕壤中最佳条件为:T-Fe NPs投加量3.42 g/kg,PS浓度15.77 mmol/L,温度11.83 ℃,降解率可达到54.22%。该研究结果可为TBBPA污染土壤工程修复提供理论依据。
- 四溴双酚A /
- 植物提取液 /
- 铁基纳米材料 /
- 过硫酸盐
Abstract: The degradation of tetrabromobisphenol A (TBBPA) is a research hotspot in the field of environmental pollution control. In this study, the degradation of TBBPA in soil was catalyzed by persulfate (PS) activated by the iron-based nanomaterials (T-Fe NPs) mediated by leaf extracts from sycamore, and the degradation conditions of TBBPA in different soil types (aquic soil, red soil, yellow-brown soil) were optimized. Box-Behnken design model was used to analyze the effects of different factors (T-Fe NPs dosage, PS concentration, temperature) and their interaction on soil TBBPA degradation rate, and the optimal degradation conditions of TBBPA in different soils were obtained. The results showed that: 1)T-Fe NPs could effectively activate PS and degrade TBBPA in different types of soil, and the degradation effect was better in red soil. 2) The optimal degradation conditions of TBBPA in different types of soil were different. In aquic soil, the T-Fe NPs dosage was 6.39 g/kg, PS concentration was 31.26 mmol/L, the temperature was 20.73 ℃, and the degradation rate was 71.72%. In red soil, T-Fe NPs dosage was 5.26 g/kg, PS concentration was 29.08 mmol/L, the temperature was 49.80 ℃, and degradation rate was 87.87%. In yellow-brown soil, T-Fe NPs dosage was 3.42 g/kg, PS concentration was 15.77 mmol/L, the temperature was 11.83 ℃, and the degradation rate was 54.22%. This method can provide a theoretical basis for TBBPA contaminated soil remediation.
- tetrabromobisphenol A /
- plant extract /
- iron-based nanoparticles /
- persulfate

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参考文献(21)

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