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 ›› 2023, Vol. 55 ›› Issue (8): 28-35.doi: 10.19964/j.issn.1006-4990.2022-0579

• 新型无机材料在光电催化中的应用 • 上一篇    下一篇

立方体形α-Fe2O3光催化剂的合成及其可见光芬顿降解抗生素

晏超群1(), 张贤明2, 魏娟1, 程治良1,2(), 徐倩1, 张轩1   

  1. 1.重庆理工大学化学化工学院,重庆 400054
    2.重庆工商大学废油资源化技术与 装备教育部工程研究中心,重庆 400067
  • 收稿日期:2023-01-09 出版日期:2023-08-10 发布日期:2023-08-25
  • 通讯作者: 程治良(1986— ),男,副教授,研究方向为资源环境化工;E-mail:purper@cqut.edu.cn
  • 作者简介:晏超群(1996— ),女,硕士,研究方向为资源环境化工;E-mail:EleganceYan@163.com
  • 基金资助:
    重庆市自然科学基金面上项目(cstc2020jcyj-msxmX0308);重庆市教委科学技术研究项目(KJQN202001148);2021年重庆市留学人员回国创业创新支持计划项目;重庆巴南区科技成果转化及产业化专项;2022年度科技智库青年人才计划项目

Synthesis of cubic α-Fe2O3 catalyst and its photo-Fenton degradation performance of antibiotic under visible light

YAN Chaoqun1(), ZHANG Xianming2, WEI Juan1, CHENG Zhiliang1,2(), XU Qian1, ZHANG Xuan1   

  1. 1.School of Chemistry and Chemical Engineering,Chongqing University of Technology,Chongqing 400054,China
    2.Engineering Research Center for Waste Oil Recovery Technology and Equipment,Ministry of Education,Chongqing Technology and Business University,Chongqing 400067,China
  • Received:2023-01-09 Published:2023-08-10 Online:2023-08-25

摘要:

抗生素的滥用和生产废水的无序排放造成了水体中抗生素污染问题日益严重。通过溶剂热法合成了立方体形貌的α-Fe2O3光芬顿催化剂,采用扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)等方法对其微观结构、物相等进行了表征。以盐酸四环素(TC)为模型抗生素污染物,研究了新型催化剂对TC的吸附和光芬顿降解性能,并探究了催化剂浓度、H2O2加入量、LED光源波长和pH等因素对TC降解效果的影响规律。结果表明,该工作成功合成出了粒径分布均一且具有立方体形貌的α-Fe2O3,其对TC的吸附在30 min内即可达到平衡,吸附量可达7.06 mg/g。当TC的初始质量浓度为20 mg/L、α-Fe2O3催化剂的质量浓度为0.5 g/L时,采用可见光LED光源光芬顿降解30 min,TC的去除率可达80%以上。

关键词: 立方体形α-Fe2O3, 光芬顿, 降解, 盐酸四环素

Abstract:

The abuse of antibiotics and disordered discharge of production wastewater cause the pollution of antibiotics in the water.The cubic morphology α-Fe2O3 photo-Fenton catalyst was synthesized by solvothermal method,and its microstructure and physical properties were characterized by scanning electron microscopy(SEM),transmission electron microscopy(TEM),and X-ray diffraction(XRD).The adsorption and photo-Fenton degradation of TC by the new catalysts were investigated using tetracycline hydrochloride(TC) as a model antibiotic pollutant,and the effects of various factors including catalyst concentration,H2O2 content,LED light wavelength,and pH on TC degradation removal were investigated.The results showed that the cubic α-Fe2O3 with uniform particle size distribution was successfully synthesized and its adsorption on TC could reach equilibrium within 30 min,and the adsorption capacity could reach 7.06 mg/g.When the initial mass concentration of TC was 20 mg/L and the mass concentration of α-Fe2O3 catalyst was 0.5 g/L,the removal rate of TC could reach more than 80% by using visible LED light source photo-Fenton degradation for 30 min.

Key words: cubic α-Fe2O3, photo-Fenton, degradation, tetracycline hydrochloride

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