高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (9): 1985-1992.doi: 10.7503/cjcu20180178

• 物理化学 • 上一篇    下一篇

FeY型分子筛的高效制备及非均相Fenton催化降解性能

张武1, 纪妍妍2,3(), 彭涵2, 戴少英2, 刘莹2, 张纪梅2, 王冬梅4   

  1. 1. 天津科技大学海洋与环境学院, 天津市海洋资源与化学重点实验室, 天津市海洋环境保护与修复技术工程中心, 天津 300457
    2. 天津工业大学环境与化学工程学院, 省部共建分离膜与膜过程国家重点实验室, 天津 300387
    3. 浙江大学化学系, 浙江省应用化学重点实验室, 杭州 310028
    4. 吉林大学化学学院, 无机合成与制备化学国家重点实验室, 长春 130012
  • 收稿日期:2018-03-08 出版日期:2018-09-07 发布日期:2018-06-11
  • 作者简介:

    联系人简介: 纪妍妍, 女, 博士, 副教授, 主要从事无机/有机功能材料方面的研究. E-mail: jiyanyan@tjpu.edu.cn

  • 基金资助:
    国家自然科学基金(批准号: 51503148, 21403193, 51508384)和天津市自然科学基金(批准号: 15JCQNJC09000, 14JCQNJC02500)资助.

High Efficiency Synthesis of FeY Type Zeolite and Its Heterogeneous Fenton Catalytic Degradation

ZHANG Wu1, JI Yanyan2,3,*(), PENG Han2, DAI Shaoying2, LIU Ying2, ZHANG Jimei2, WANG Dongmei4   

  1. 1. College of Marine and Environmental Science, Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin Marine Environmental Protection and Restoration Technology Engineering Center, Tianjin University of Science and Technology, Tianjin 300457, China
    2. School of Environmental and Chemical Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
    3. Key Laboratory of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310028, China
    4. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China
  • Received:2018-03-08 Online:2018-09-07 Published:2018-06-11
  • Contact: JI Yanyan E-mail:jiyanyan@tjpu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.51503148, 21403193, 51508384) and the Natural Science Foundation of Tianjin City, China(Nos.15JCQNJC09000, 14JCQNJC02500).

摘要:

改进传统水热合成法, 以湿凝胶晶化法高效制备了具有FAU结构的含铁Y型分子筛. 采用X射线衍射(XRD)、 扫描电子显微镜(SEM)、 紫外-可见吸收光谱(UV-Vis)、 电感耦合等离子体发射光谱(ICP)和X射线光电子能谱(XPS)等方法对产物结构、 形貌及组成等进行了表征, 并与传统水热合成法及离子交换法制备的含铁Y型分子筛进行了比较. 将该分子筛作为催化剂构建了非均相Fenton体系, 该体系对亚甲基蓝染料具有良好的催化降解性能, 考察了溶液初始pH值、 H2O2用量以及催化剂用量等因素对Fenton催化性能的影响, 并研究了催化剂的循环再生性能.

关键词: 湿凝胶晶化法, Y型分子筛, 非均相Fenton反应, 催化降解

Abstract:

Iron containing zeolite with FAU structure was synthesized via the wet-gel crystallization method to improve the traditional hydrothermal synthesis of zeolites. X-ray diffraction(XRD), scanning electron microscopy(SEM), Ultraviolet-visible(UV-Vis) spectroscopy, inductively coapled plasma(ICP) elemental analysis and X-ray photoelectron spectrometry(XPS) spectroscopy were used to study the structure, morphology and composition of the zeolites, which was compared with those of samples prepared by traditional hydrothermal synthetic method and direct ion exchanging method. FeY zeolites were employed into heterogeneous catalytic system based on Fenton reaction, which had good catalytic degradation performance against methylene blue. The effects on the degradation rate were evaluated, including initial pH value of solution, initial concentration of H2O2, dosage of catalyst as well as different preparation methods. The optimum operation parameters for the Fenton oxidation were determined. Stabilities of the catalysts were also studied by successive recycling experiments.

Key words: Wet gel crystallization, Zeolite Y, Hetergeoneous Fenton reaction, Catalytic degradation

中图分类号: