SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2018, Vol. 26 ›› Issue (2): 337-342.DOI: 10.1016/j.cjche.2017.03.031

• Catalysis, kinetics and reaction engineering • 上一篇    下一篇

A new nanocluster polyoxomolybdate[Mo36O110(NO)4(H2O)14]·52H2O: Synthesis, characterization and application in oxidative degradation of common organic dyes

Mojtaba Amini1, Mostafa Khaksar1, Arkady Ellern2, L. Keith Woo2   

  1. 1 Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh 55181-83111, Iran;
    2 Chemistry Department, Iowa State University, Ames, IA 50011-3111, USA
  • 收稿日期:2017-01-13 修回日期:2017-03-09 出版日期:2018-02-28 发布日期:2018-03-16
  • 通讯作者: Mojtaba Amini
  • 基金资助:

    Supported by the Iranian National Science Foundation (INSF) and University of Maragheh.

A new nanocluster polyoxomolybdate[Mo36O110(NO)4(H2O)14]·52H2O: Synthesis, characterization and application in oxidative degradation of common organic dyes

Mojtaba Amini1, Mostafa Khaksar1, Arkady Ellern2, L. Keith Woo2   

  1. 1 Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh 55181-83111, Iran;
    2 Chemistry Department, Iowa State University, Ames, IA 50011-3111, USA
  • Received:2017-01-13 Revised:2017-03-09 Online:2018-02-28 Published:2018-03-16
  • Contact: Mojtaba Amini
  • Supported by:

    Supported by the Iranian National Science Foundation (INSF) and University of Maragheh.

摘要: Polyoxomolybdate[Mo36O110(NO)4(H2O)14]·52H2O was synthesized by a simple one-pot procedure through reducing an acidified mixture of Na2MoO4·2H2O and NH2OH·HCl. In order to create a heterogeneous catalyst system, the polyoxomolybdate was pillared with MgAl-LDH-NO3 by direct ion exchange. These novel materials were carefully analyzed by various chemico-physical methods. The catalytic degradation of methylene blue (MB) and rhodamine B (RB) as common dyes in the presence of MgAl-LDH-1 nanoparticles with aqueous hydrogen peroxide, H2O2, as an oxidizing agent was studied in aqueous solution at room temperature. More importantly, the catalyst can be recovered and reused efficiently up to five consecutive cycles with negligible loss of catalytic activity.

关键词: Nanocluster, Polyoxomolybdate, LDH, Methylene blue, Rhodamine B

Abstract: Polyoxomolybdate[Mo36O110(NO)4(H2O)14]·52H2O was synthesized by a simple one-pot procedure through reducing an acidified mixture of Na2MoO4·2H2O and NH2OH·HCl. In order to create a heterogeneous catalyst system, the polyoxomolybdate was pillared with MgAl-LDH-NO3 by direct ion exchange. These novel materials were carefully analyzed by various chemico-physical methods. The catalytic degradation of methylene blue (MB) and rhodamine B (RB) as common dyes in the presence of MgAl-LDH-1 nanoparticles with aqueous hydrogen peroxide, H2O2, as an oxidizing agent was studied in aqueous solution at room temperature. More importantly, the catalyst can be recovered and reused efficiently up to five consecutive cycles with negligible loss of catalytic activity.

Key words: Nanocluster, Polyoxomolybdate, LDH, Methylene blue, Rhodamine B