工业水处理 ›› 2020, Vol. 40 ›› Issue (12): 69-73. doi: 10.11894/iwt.2020-0116

• 试验研究 • 上一篇    下一篇

非均相Fenton催化剂的制备及对苯胺黑药的降解效果

刘烨1(),侯保林1,2,*(),任伯帜1,2,刘旭1   

  1. 1. 湖南科技大学土木工程学院, 湖南湘潭 411110
    2. 页岩气资源利用湖南省重点实验室, 湖南湘潭 411110
  • 收稿日期:2020-11-08 出版日期:2020-12-20 发布日期:2020-12-22
  • 通讯作者: 侯保林 E-mail:1391005143@qq.com;h3i3t0@126.com
  • 作者简介:刘烨(1995-),硕士研究生。E-mail:1391005143@qq.com
  • 基金资助:
    湖南省自然科学基金(2018JJ3175);国家自然科学基金(51704114)

Preparation of heterogeneous Fenton catalyst and its degradation effect on aniline aerofloat

Ye Liu1(),Baolin Hou1,2,*(),Bozhi Ren1,2,Xu Liu1   

  1. 1. School of Civil Engineering, Hunan University of Science and Technology, Xiangtan 411110, China
    2. Hunan Provincial Key Laboratory of Shale Gas Resource Utilization, Xiangtan 411110, China
  • Received:2020-11-08 Online:2020-12-20 Published:2020-12-22
  • Contact: Baolin Hou E-mail:1391005143@qq.com;h3i3t0@126.com

摘要:

以颗粒活性炭为载体,采用循环热解法制备了铁锰双金属催化剂Fe/Mn-GAC,用响应面法优化Fe/Mn-GAC的制备条件参数,并对Fe/Mn-GAC进行表征,考察以其为催化剂构成的非均相Fenton体系降解苯胺黑药的性能及动力学。结果表明:响应面二次回归模型的拟合相关性高,各因素对Fe/Mn-GAC的催化性能和苯胺黑药的降解效能有显著影响,优化后的制备条件参数为铁锰离子浓度比9.50、制备温度362.07℃、铁锰总离子浓度1.09 mol/L,该非均相Fenton体系降解苯胺黑药的去除率为97.164%,降解符合准一级动力学。

关键词: 响应面优化, 双金属催化剂, 非均相Fenton, 苯胺黑药

Abstract:

Fe/Mn-GAC bimetallic catalyst was prepared by cyclic pyrolysis with the granular activated carbon as the carrier. The preparation parameters of Fe/Mn-GAC were optimized by response surface methodology(RSM). The physicochemical properties of Fe/Mn-GAC bimetallic catalyst were characterized, and the performance and kinetics of the degradation of aniline aerofloat by Fenton reaction were investigated. Results showed that the response surface quadratic regression model was of high significance. Each factor had significant influence on catalytic performance of Fe/Mn-GAC and the degradation efficiency of aniline aerofloat. The optimal preparation parameters were determined as 9.5 of Fe-Mn ion concentration ratio, 362.07℃ of temperature, and 1.09 mol/L of the total concentration of iron-manganese ions. The removal efficiency of aniline aerofloat in the Fenton system catalyzed by Fe/Mn-GAC was 97.164%, and the degradation reaction was in accordance with pseudo-first-order kinetics.

Key words: response surface optimization, bimetallic catalyst, heterogeneous Fenton, aniline aerofloat

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