化工进展 ›› 2023, Vol. 42 ›› Issue (12): 6676-6686.DOI: 10.16085/j.issn.1000-6613.2023-0803

• 资源与环境化工 • 上一篇    

类普鲁士蓝的制备及其活化PMS降解双酚S

杨有威1,2,3(), 曾亦婷1,2, 郭昌胜3, 罗玉霞1,2, 高艳1,2, 王春英1,2()   

  1. 1.矿冶环境污染防控江西省重点实验室,江西 赣州 341000
    2.江西理工大学资源与环境工程学院, 江西 赣州 341000
    3.中国环境科学研究院环境基准与风险评估国家重点实验室, 北京 100012
  • 收稿日期:2023-05-15 修回日期:2023-07-21 出版日期:2023-12-25 发布日期:2024-01-08
  • 通讯作者: 王春英
  • 作者简介:杨有威(1998—),男,硕士研究生,研究方向为废水处理与资源化技术。E-mail:1287476942@qq.com
  • 基金资助:
    江西省自然科学基金面上项目(20232BAB203040);江西理工大学“青年优秀人才支持计划”(JXUSTQJYX2016003);2020年国家大学生创新创业训练计划(202010407004)

Preparation of Prussian blue and its activation of PMS for degrading bisphenol S

YANG Youwei1,2,3(), ZENG Yiting1,2, GUO Changsheng3, LUO Yuxia1,2, GAO Yan1,2, WANG Chunying1,2()   

  1. 1.Jiangxi Provincial Key Laboratory of Environmental Pollution Prevention and Control in Mining and Metallurgy, Ganzhou 341000, Jiangxi, China
    2.School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
    3.State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
  • Received:2023-05-15 Revised:2023-07-21 Online:2023-12-25 Published:2024-01-08
  • Contact: WANG Chunying

摘要:

通过简单共沉淀法合成了类普鲁士蓝化合物(CoFe-PBA),用于活化过一硫酸盐(PMS)降解有机污染物双酚S(BPS)。使用扫描电镜、X射线衍射、X射线光电子能谱等手段对CoFe-PBA进行表征,结果表明CoFe-PBA由紧密结合的Co3[Fe(CN)6]2构成,为纳米级,表面均匀分布着C、Fe、Co、O元素,具有丰富的活性位点。催化剂投加量300mg/L、PMS投加量400mg/L、pH=5.89条件下,CoFe-PBA/PMS降解体系40min内去除73.77%的BPS,对酸性和共存离子(SO42-、NO3-和Cl-)敏感,碱性环境能促进PMS快速活化,重复实验显示该体系具有良好稳定性,使用4次后仅下降26.70%,活化性能优于其他材料。机理分析表明,CoFe-PBA与PMS相互作用,作用过程中改变了金属位点价态,发生电子转移,产生各种活性物质降解BPS,其主要作用活性物种为1O2;产物分析表明,在CoFe-PBA活化PMS系统中,BPS可历经三种路径最终转化为开环产物及CO2和H2O。本研究通过低耗能、低成本、快速简易的方法制备CoFe-PBA,可为活化PMS绿色降解BPS提供思路。

关键词: 双酚S, 过硫酸盐活化, 类普鲁士蓝, 过渡金属

Abstract:

A Prussian blue-like compound (CoFe-PBA) was synthesized by a simple co-precipitation method for activating permonosulfate (PMS) to degrade organic pollutant bisphenol S (BPS). CoFe-PBA showed high activity on the removal of bisphenol S from activated PMS. Scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy were used to characterize CoFe-PBA. The results showed that CoFe-PBA was composed of Co3[Fe(CN)6]2, which was in nanometer scale. The surface was evenly distributed with C, Fe, Co, O elements, with abundant active sites. Under the conditions of catalyst dosage of 300mg/L, PMS dosage of 400mg/L and pH=5.89, the degradation system of CoFe-PBA/PMS could remove 73.77% BPS within 40min, and it was sensitive to acidic and coexisting ions (SO42-, NO3- and Cl-). The alkaline environment could promote the rapid activation of PMS. Repeated experiments showed that the system had good stability, and its activity only decreases by 26.70% after four repeated uses. The mechanism analysis showed that CoFe-PBA interacts with PMS, which changed the valence state of metal sites and produced various active substances to degrade BPS. The main active species was 1O2, and BPS was completely degraded through three degradation processes. The analysis of byproducts indicated BPS could be degraded to ring-opening products and finally be transformed to minerialzed products CO2 and H2O. Low energy consumption, low cost, rapid and simple preparation of CoFe-PBA provided ideas for green degradation of bisphenol S by activating PMS.

Key words: bisphenol S, persulfate activation, Prussian blue analogue, transition metal

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