辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2021, Vol. 41 ›› Issue (1): 8-12.DOI: 10.3969/j.issn.1672-6952.2021.01.002

• 化学与化学工程 • 上一篇    下一篇

双金属催化过硫酸盐降解偶氮染料

詹琪1李爽1宗芳2杨长生3马会强1   

  1. 1.辽宁石油化工大学 环境与安全工程学院,辽宁 抚顺 113001; 2.辽宁省生态环境事务服务中心,辽宁 沈阳 110161;
  • 收稿日期:2019-05-14 修回日期:2019-05-28 出版日期:2021-02-26 发布日期:2021-03-12
  • 通讯作者: 马会强(1982-),男,博士,教授,从事废水高级氧化技术方面的研究;E-mail:mahuiqiang0921@126.com。
  • 作者简介:詹琪(1989-),女,硕士研究生,从事废水高级氧化技术方面的研究;E-mail:qi-qi—youxiang@163.com。
  • 基金资助:
    辽宁省高等学校创新人才项目(LR2016059);辽宁省教育厅基本科研项目(L2017LQN001)。

Bimetallic Catalyzed Persulfate Degradation of Azo Dyes

Zhan Qi1Li Shuang1Zong Fang2Yang Changsheng3Ma Huiqiang1   

  1. 1.School of Environmental & Safety Engineering, Liaoning Petrochemical University, Fushun Liaoning 113001, China; 2.Liaoning Ecological Environment Affairs Service Center, Shenyang Liaoning 110161, China; 3.Detergent Chemical Plant, PetroChina Fushun Petrochemical Company, Fushun Liaoning 113008, China
  • Received:2019-05-14 Revised:2019-05-28 Published:2021-02-26 Online:2021-03-12

摘要: 采用置换法制备Cu/Fe催化剂,并通过X射线衍射(XRD)对其进行表征。考察了Cu/Fe催化过硫酸钠(PS)降解金橙Ⅱ的效果及其影响因素,并对降解反应机理进行探究。结果表明,Cu/Fe能够催化PS降解金橙Ⅱ废水,并且其催化效果优于零价铁,其中当pH=3、PS的质量浓度为2.0 g/L、Cu/Fe催化剂的质量浓度为0.250 g/L时,金橙Ⅱ的降解率为99%。利用叔丁醇和甲醇作为自由基捕获剂,证实了降解反应中起到氧化作用的活性自由基为SO〖_4^-〗·和·OH。

关键词: 过硫酸盐, Cu/Fe催化剂, 金橙Ⅱ

Abstract: The Cu/Fe catalyst was prepared by displacement method and characterized by X⁃ray diffraction (XRD). The degradation effect of Orange II by persulfate (PS) catalyzed by Cu/Fe and its influence factors were investigated, and the mechanism of degradation was also investigated. The experimental results show that Cu/Fe can catalyze PS to degradate Orange II wastewater successfully, and its catalytic effect is better than that of zero⁃valent iron. When pH=3, the mass concentration of PS is 2.0 g/L, the quality of Cu/Fe catalyst at a concentration of 0.250 g/L, the degradation rate of Orange II is up to 99%. The t⁃butanol and methanol are used as radical scavengers to confirmed that the active radicals in the process of degradation are SO〖_4^-〗· and ·OH.

Key words: Persulfate, Cu/Fe catalyst, Orange II

引用本文

詹琪, 李爽, 宗芳, 杨长生, 马会强. 双金属催化过硫酸盐降解偶氮染料[J]. 辽宁石油化工大学学报, 2021, 41(1): 8-12.

Zhan Qi, Li Shuang, Zong Fang, Yang Changsheng, Ma Huiqiang. Bimetallic Catalyzed Persulfate Degradation of Azo Dyes[J]. Journal of Liaoning Petrochemical University, 2021, 41(1): 8-12.

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