改性海绵铁降解四溴双酚A的特性及机理

黄蒸; 邓东阳; 李辉; 李良忠; 向明灯; 于云江; 刘勇弟; 鞠勇明

doi:10.7524/j.issn.0254-6108.2017.05.2016111301

环境化学

改性海绵铁降解四溴双酚A的特性及机理

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黄蒸, 邓东阳, 李辉, 李良忠, 向明灯, 于云江, 刘勇弟, 鞠勇明. 改性海绵铁降解四溴双酚A的特性及机理[J]. 环境化学, 2017, 36(5): 1083-1089. doi: 10.7524/j.issn.0254-6108.2017.05.2016111301

引用本文:

HAUNG Zheng, DENG Dongyang, LI Hui, LI Liangzhong, XIANG Mingdeng, YU Yunjiang, LIU Yongdi, JU Yongming. Performance and mechanism of tetrabromobisphenol A degradation by modified sponge iron[J]. Environmental Chemistry, 2017, 36(5): 1083-1089. doi: 10.7524/j.issn.0254-6108.2017.05.2016111301

Citation:

HAUNG Zheng, DENG Dongyang, LI Hui, LI Liangzhong, XIANG Mingdeng, YU Yunjiang, LIU Yongdi, JU Yongming. Performance and mechanism of tetrabromobisphenol A degradation by modified sponge iron[J]. Environmental Chemistry, 2017, 36(5): 1083-1089. doi: 10.7524/j.issn.0254-6108.2017.05.2016111301

改性海绵铁降解四溴双酚A的特性及机理

1.
华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海, 200237;
2.
环境保护部华南环境科学研究所, 广州, 510655;
3.
湖南华菱湘潭钢铁有限公司, 湘潭, 411101
基金项目:
国家自然科学基金（U1401233，21377045，21607048）资助

Performance and mechanism of tetrabromobisphenol A degradation by modified sponge iron

1.
School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China;
2.
South China Institute of Environmental Sciences, The Ministry of Environmental Protection of the PRC, Guangzhou, 510655, China;
3.
Xunan Valin Xiangtan Iron and Steed Co.Ltd(XISC), Xiangtan, 411101, China
Fund Project: Supported by the National Natural Science Foundation of China (U1401233, 21377045, 21607048)

摘要: 在超声条件下通过置换反应制备钯海绵铁（Pd0-s-Fe0）双金属颗粒，采用扫描电子显微镜（SEM）和电子能谱仪（EDS）进行表征.Pd0-s-Fe0催化还原降解溶液中的四溴双酚A（TBBPA）的实验结果表明，Pd0-s-Fe0较s-Fe0（海绵铁）催化活性高，在pH值为6.7，100 mL初始浓度为15 mg·L-1溶液投加5 g负载0.07%钯的改性海绵铁的条件下，反应120 min后TBBPA的去除率达到91.5%，且Pd0-s-Fe0降解TBBPA符合一级动力学规律.经高效液相色谱串联四极杆飞行时间质谱（LC-TOF-MS）分析鉴定降解产物，明确TBBPA的还原降解途径为TBBPA被脱去1—4个溴生成三溴双酚A、二溴双酚A、一溴双酚A、双酚A.
- 海绵铁 /
- 钯海绵铁双金属 /
- 四溴双酚A /
- 降解机理
Abstract: Pd0-s-Fe0 bimetallic particles were synthesized by liquid phase reductive displacement method under ultrasound and characterized by scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). The results of the tetrabromobisphenol A degradation (TBBPA) by Pd0-s-Fe0 indicated that Pd0-s-Fe0 showed better catalytic activity compared with s-Fe0. At pH 6.7, with 5 g Pd0-s-Fe0 particles in 100 mL 15 mg·L-1 TBBPA solution, the degradation efficiency of TBBPA reached 91.5%, and the reaction obeyed the pseudo first-order kinetics. Through identification of the major degradation intermediates by liquid chromatography time-of-flight mass spectrometry (LC/TOF/MS), the degradation pathway of TBBPA was through debromination of 1—4 Br atoms to produce tri-BBPA, di-BBPA, mono-BBPA and BPA.
- sponge iron /
- palladium-loaded sponge iron /
- tetrabromobisphenol A (TBBPA) /
- degradation mechanism.

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Citation:

HAUNG Zheng, DENG Dongyang, LI Hui, LI Liangzhong, XIANG Mingdeng, YU Yunjiang, LIU Yongdi, JU Yongming. Performance and mechanism of tetrabromobisphenol A degradation by modified sponge iron[J]. Environmental Chemistry, 2017, 36(5): 1083-1089. doi: 10.7524/j.issn.0254-6108.2017.05.2016111301

改性海绵铁降解四溴双酚A的特性及机理

1. 华东理工大学资源与环境工程学院, 国家环境保护化工过程环境风险评价与控制重点实验室, 上海, 200237;
2. 环境保护部华南环境科学研究所, 广州, 510655;
3. 湖南华菱湘潭钢铁有限公司, 湘潭, 411101

收稿日期: 2016-11-13

基金项目:

国家自然科学基金（U1401233，21377045，21607048）资助

关键词:

摘要: 在超声条件下通过置换反应制备钯海绵铁（Pd0-s-Fe0）双金属颗粒，采用扫描电子显微镜（SEM）和电子能谱仪（EDS）进行表征.Pd0-s-Fe0催化还原降解溶液中的四溴双酚A（TBBPA）的实验结果表明，Pd0-s-Fe0较s-Fe0（海绵铁）催化活性高，在pH值为6.7，100 mL初始浓度为15 mg·L-1溶液投加5 g负载0.07%钯的改性海绵铁的条件下，反应120 min后TBBPA的去除率达到91.5%，且Pd0-s-Fe0降解TBBPA符合一级动力学规律.经高效液相色谱串联四极杆飞行时间质谱（LC-TOF-MS）分析鉴定降解产物，明确TBBPA的还原降解途径为TBBPA被脱去1—4个溴生成三溴双酚A、二溴双酚A、一溴双酚A、双酚A.

English Abstract

Performance and mechanism of tetrabromobisphenol A degradation by modified sponge iron

1. School of Resources and Environmental Engineering, State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai, 200237, China;
2. South China Institute of Environmental Sciences, The Ministry of Environmental Protection of the PRC, Guangzhou, 510655, China;
3. Xunan Valin Xiangtan Iron and Steed Co.Ltd(XISC), Xiangtan, 411101, China

Received Date: 2016-11-13

Fund Project: Supported by the National Natural Science Foundation of China (U1401233, 21377045, 21607048)

Keywords:

Abstract: Pd0-s-Fe0 bimetallic particles were synthesized by liquid phase reductive displacement method under ultrasound and characterized by scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS). The results of the tetrabromobisphenol A degradation (TBBPA) by Pd0-s-Fe0 indicated that Pd0-s-Fe0 showed better catalytic activity compared with s-Fe0. At pH 6.7, with 5 g Pd0-s-Fe0 particles in 100 mL 15 mg·L-1 TBBPA solution, the degradation efficiency of TBBPA reached 91.5%, and the reaction obeyed the pseudo first-order kinetics. Through identification of the major degradation intermediates by liquid chromatography time-of-flight mass spectrometry (LC/TOF/MS), the degradation pathway of TBBPA was through debromination of 1—4 Br atoms to produce tri-BBPA, di-BBPA, mono-BBPA and BPA.