无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2022, Vol. 54 ›› Issue (5): 116-120.doi: 10.19964/j.issn.1006-4990.2021-0469

• 环境·健康·安全 • 上一篇    下一篇

β-FeOOH改性蒙脱土复合过氧化氢对罗丹明B的降解

陈修栋1(),张义焕1,张浩东1,盛冬河1,吴嘉伟1,刘金杭1,严平1,占昌朝2()   

  1. 1.九江学院 化学化工学院,江西 九江 332005
    2.江西省生态化工工程技术研究中心
  • 收稿日期:2021-08-04 出版日期:2022-05-10 发布日期:2022-05-31
  • 作者简介:陈修栋(1989— ),男,副教授,研究方向为无机材料合成与应用;E-mail:chenxiudong_@126.com
  • 基金资助:
    国家自然科学基金(22065017);江西省自然科学基金(20202BABL213012);大学生创新创业计划项目(202011843021);江西省教育厅科学基金(GJJ211801);九江市科技计划项目(S2021QNZZ020)

Degradation of rhodamine B by β-FeOOH modified montmorillonite compounded with H2O2

CHEN Xiudong1(),ZHANG Yihuan1,ZHANG Haodong1,SHENG Donghe1,WU Jiawei1,LIU Jinhang1,YAN Ping1,ZHAN Changchao2()   

  1. 1.School of Chemistry and Chemical Engineering, Jiujiang University, Jiujiang 332005, China
    2.Jiangxi Province Engineering Research Center of Ecological Chemical Industry
  • Received:2021-08-04 Published:2022-05-10 Online:2022-05-31

摘要:

用不同物质的量的β-FeOOH对蒙脱土(MMT)进行改性制备出一系列β-FeOOH-MMT(x),并将其与过氧化氢(H2O2)联用降解罗丹明B(RhB)。考察了RhB模拟废水脱色的影响因素,并研究了不同处理方法的协同效应。结果表明:在pH为5.2、β-FeOOH-MMT(3.5)用量为2 g/L、n(H2O2)∶n(Fe)=50∶1条件下搅拌10 min,对20 mg/L的RhB去除率可高达89.3%;对β-FeOOH-MMT(x)进行了拉曼光谱和扫描电镜表征。β-FeOOH-MMT(3.5)表现出丰富的孔结构;β-FeOOH-MMT(3.5)和H2O2对降解RhB模拟废水产生了协同效应,降解反应较为接近表观一级动力学,速率增强因子可达到29.32。

关键词: 蒙脱土, β-FeOOH, 罗丹明B, 类Fenton法

Abstract:

Montmorillonite was modified with different amounts of β-FeOOH to prepare a series of β-FeOOH-MMT(x),which were also linked with H2O2 to degrade the rhodamine B(RhB).The influence factors of RhB simulated wastewater deccolization were investigated and the synergistic effect of different treatment methods was investigated,and the experimental results showed that when pH=5.2,β-FeOOH-MMT(3.5) dosage of 2 g/L,n(H2O2)∶n(Fe)=50∶1,stir for 10 min,the 20 mg/L RhB removal rate could be as high as 89.3%.Raman spectroscopy and SEM were characterized for β-FeOOH-MMT(x).β-FeOOH-MMT(3.5) showed rich pore structure.β-FeOOH-MMT(3.5) and H2O2 had synergistic effect on degradation of RhB simulated wastewater.The degradation reaction was closer to the apparent first?order kinetics,and the rate enhancement factor could reach 29.32.

Key words: montmorillonoid, β-FeOOH, rhodamine B, Fenton?like method

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