Chemical Industry and Engineering Progress ›› 2017, Vol. 36 ›› Issue (04): 1301-1305.DOI: 10.16085/j.issn.1000-6613.2017.04.020

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Preparation of nano spinel CuFexCo2-xO4and its application in nitrophenol catalytic reduction

ZHAO Shiduo1, REN Shucheng1, LI Qiming1,2, LI Fang1, LIANG Zhihua1   

  1. 1 School of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, Liaoning, China;
    2 Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Chinese Academy of Sciences, Fuzhou 350002, Fujian, China
  • Received:2016-06-07 Revised:2016-09-13 Online:2017-04-05 Published:2017-04-05

纳米尖晶石CuFexCo2-xO4的制备及其在对硝基苯酚催化还原中的应用

赵士夺1, 任书成1, 李其明1,2, 李芳1, 梁志花1   

  1. 1 辽宁石油化工大学化学化工与环境学部, 石油化工重点实验室, 辽宁 抚顺 113001;
    2 中国科学院煤制乙二醇及相关技术重点实验室, 福建 福州 350002
  • 通讯作者: 李其明,副教授,博士,研究方向为储氢能源与催化新材料。E-mail:lqm_dicp@163.com。
  • 作者简介:赵士夺(1988-),男,硕士研究生,主要从事储氢能源与催化新材料的研究工作。E-mail:1501255707@qq.com。
  • 基金资助:
    国家自然科学基金项目(21201096)、辽宁省教育厅项目(L2010242)、辽宁省教育厅辽宁石油化工大学石油化工重点实验室项目(LZ2015050)及中国科学院煤制乙二醇及相关技术重点实验室项目。

Abstract: Water pollution,especially caused by p-nitrophenol,has drawn more and more attention in recent years. To solve the problem,catalytic reduction of p-nitrophenol into p-aminophenol is proposed,however,it requires catalyst of high activity and easy to recovery. Nano spinel CuFexCo2-xO4 recyclable catalysts(CuFe2O4、CuFeCoO4、CuCo2O4) are prepared via a gel-burning method,and their catalytic activities are investigated in the catalytic nitrophenol reduction.XRD characterization indicates that CuFe2O4,CuFeCoO4 and CuCo2O4 catalysts all have excellent spinel phase structure. Micro-morphologies of nano spinel CuFe2O4,CuFeCoO4 and CuCo2O4 catalysts are checked using SEM. SEM images showed that nano spinel CuCo2O4 catalyst has smaller particle size and higher dispersions than those of CuFe2O4 and CuFeCoO4 catalysts. In the catalytic nitrophenol reduction,nano spinel CuCo2O4 catalyst exhibits much higher catalytic activity than CuFe2O4 and CuFeCoO4 catalysts.

Key words: nanoparticles, catalyst, chemical reaction, reduction, reactivity

摘要: 目前,水质污染特别是对硝基苯酚造成的水质污染正受到越来越多的重视和关注。为了解决这一问题,提出了一种催化还原对硝基苯酚转化为对氨基苯酚的方法,而还原过程中一般都需要活性高、易回收的催化剂。本文采用凝胶-燃烧法制备了一系列易回收的CuFexCo2-xO4纳米尖晶石催化剂(CuFe2O4、CuFeCoO4和CuCo2O4),并系统探究了催化剂在对硝基苯酚催化还原中的催化活性。XRD表征表明,催化剂CuFe2O4、CuFeCoO4、CuCo2O4属于尖晶石结构。通过扫描电镜对比了纳米尖晶石催化剂CuFe2O4、CuFeCoO4、CuCo2O4的微观形貌,相对于催化剂CuFe2O4、CuFeCoO4,纳米尖晶石CuCo2O4催化剂具有更小的粒径和分散度。催化还原对硝基苯酚的实验结果表明,相对于催化剂CuCoFeO4和CuFe2O4,纳米尖晶石CuCo2O4催化剂在对硝基苯酚的还原中具有更高的催化活性和良好的应用前景。

关键词: 纳米粒子, 催化剂, 化学反应, 还原, 活性

CLC Number: 

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