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Bi2WO6@MXenes-NS活化过单硫酸盐降解双酚A

许振扬,  方庆路,  顾雯雯,  李志颖,  张一梅,  王飞

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文章导航 > 环境工程  > 2023 >  41(4): 10-17,62
许振扬, 方庆路, 顾雯雯, 李志颖, 张一梅, 王飞. Bi2WO6@MXenes-NS活化过单硫酸盐降解双酚A[J]. 环境工程, 2023, 41(4): 10-17,62. doi: 10.13205/j.hjgc.202304002
引用本文: 许振扬, 方庆路, 顾雯雯, 李志颖, 张一梅, 王飞. Bi2WO6@MXenes-NS活化过单硫酸盐降解双酚A[J]. 环境工程, 2023, 41(4): 10-17,62. doi: 10.13205/j.hjgc.202304002
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XU Zhenyang, FANG Qinglu, GU Wenwen, LI Zhiying, ZHANG Yimei, WANG Fei. PERFORMANCE OF Bi2WO6@MXenes-NS ACTIVATED PERMONOSULFATE IN DEGRADING BISPHENOL A[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 10-17,62. doi: 10.13205/j.hjgc.202304002
Citation: XU Zhenyang, FANG Qinglu, GU Wenwen, LI Zhiying, ZHANG Yimei, WANG Fei. PERFORMANCE OF Bi2WO6@MXenes-NS ACTIVATED PERMONOSULFATE IN DEGRADING BISPHENOL A[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(4): 10-17,62. doi: 10.13205/j.hjgc.202304002
shu

Bi2WO6@MXenes-NS活化过单硫酸盐降解双酚A

doi: 10.13205/j.hjgc.202304002

  • 1. 华北电力大学环境科学与工程学院, 北京 100096;

  • 2. 华北电力大学苏州研究院, 江苏苏州 215000;

  • 3. 浙江大学材料科学与工程学院, 杭州 310027

基金项目: 

中国国家科技重点研发计划(2017YFB0603400)

苏州市科技项目(SYG201913,SYG201914)

国家自然科学基金(51878272)

详细信息
    作者简介:

    许振扬(1998-),男,硕士研究生,主要研究方向为水处理技术。525827343@qq.com

    通讯作者:

    张一梅(1982-),女,教授,主要研究方向为环境风险评价和环境修复技术。zhangym@ncepu.edu.cn

    王飞(1991-),男,博士研究生,主要研究方向为催化材料的合成与应用。1548340673@qq.com

PERFORMANCE OF Bi2WO6@MXenes-NS ACTIVATED PERMONOSULFATE IN DEGRADING BISPHENOL A

  • 1. College of Environmental Science and Engineering, North China Electric Power University, Beijing 100096, China;

  • 2. Suzhou Research Institute of North China Electric Power University, Suzhou 215000, China;

  • 3. College of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

    摘要
  • 摘要: 为解决水环境中内分泌干扰物的去除难题,采用水热法合成Bi2WO6@MXenes-NS(BM-NS)复合催化剂,通过活化过单硫酸盐(PMS)降解双酚A (BPA)。利用SEM、TEM及XRD对所制备催化剂的形貌和晶体结构进行表征,考察了不同催化剂体系、PMS浓度,溶液pH和共存离子等因素对BPA降解性能的影响。结果表明:当MXenes-NS添加量(质量分数)为0.5%,催化剂浓度为1 g/L,PMS浓度为0.3 g/L,溶液pH为3.03时,BM-NS/PMS体系具有较强的BPA降解性能,120 min内去除率达到85.3%。溶液中无机阴离子对BPA去除率的影响顺序为Cl-2PO-42-4-3≈NO-3。催化剂经过4次循环实验后,BPA去除率仍保持在70.1%。自由基猝灭实验结果表明,SO-4·是主要的活性自由基。结合LC-MS,提出了BPA可能的降解途径。研究表明,制备的BM-NS催化剂在活化PMS降解BPA方面具有良好的应用前景。
    Abstract: In order to solve the problem of removing endocrine disruptors in water environment, Bi2WO6@MXenes-NS(BM-NS) composite catalyst was synthesized by hydrothermal method, and bisphenol A (BPA) was degraded by activation of permonosulfate (PMS). The morphology and crystal structure of the catalyst were characterized by SEM, TEM and XRD. The effects of different catalyst systems, PMS concentrations, solution pH and coexisting ions on the degradation of BPA were investigated. The results showed that when the concentration of MXenes-NS was 0.5%, the concentration of catalyst was 1 g/L, the concentration of PMS was 0.3 g/L, and the solution pH was 3.03, BM-NS/PMS system had a strong BPA degradation performance, and the removal rate reached 85.3% within 120 min. In addition, the effects of inorganic anions on BPA removal were in a sequence as follows: Cl-2PO-42-4-3≈NO-3. The removal rate of BPA remained 70.1% after 4 cycles. The results of the radical quenching experiment showed that SO-4· was the main active radical. Combined with LC-MS, the possible degradation pathway of BPA was proposed. The above experimental results indicated that the prepared BM-NS catalyst had a good application prospect in activating PMS to degrade BPA.
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出版历程
  • 收稿日期:  2021-10-14
  • 网络出版日期:  2023-05-26
  • 刊出日期:  2023-04-01

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