高等学校化学学报 ›› 2021, Vol. 42 ›› Issue (8): 2558.doi: 10.7503/cjcu20210083

• 物理化学 • 上一篇    下一篇

Zr基金属有机框架材料的冷热驱动热释电催化性能

常书晴1, 辛旭1, 黄雅琦1, 张信聪1, 傅仰河1(), 朱伟东1, 张富民1, 李晓娜2()   

  1. 1.先进催化材料教育部重点实验室, 浙江师范大学物理化学研究所, 金华 321004
    2.吉林工程职业学院, 四平 136001
  • 收稿日期:2021-02-04 出版日期:2021-08-10 发布日期:2021-08-05
  • 通讯作者: 傅仰河 E-mail:yhfu@zjnu.cn;434655268@qq.com
  • 作者简介:李晓娜, 女, 硕士, 讲师, 主要从事环境光催化研究. E-mail: 434655268@qq.com
  • 基金资助:
    浙江省自然科学基金(LY18B030006)

Pyroelectrically-induced Catalytic Performance of Zr-based MOF Under Cold-hot Alternation

CHANG Shuqing1, XIN Xu1, HUANG Yaqi1, ZHANG Xincong1, FU Yanghe1(), ZHU Weidong1, ZHANG Fumin1, LI Xiaona2()   

  1. 1.Key Laboratory of the Ministry of Education for Advanced Catalysis Materials,Institute of Physical Chemistry,Zhejiang Normal University,Jinhua 321004,China
    2.Jilin Engineering Vocational College,Siping 136001,China
  • Received:2021-02-04 Online:2021-08-10 Published:2021-08-05
  • Contact: FU Yanghe E-mail:yhfu@zjnu.cn;434655268@qq.com
  • Supported by:
    the Natural Science Foundation of Zhejiang Province, China(LY18B030006)

摘要:

将Zr基金属有机框架材料[NH2-UiO-66(Zr)]作为热释电材料应用于冷热驱动催化降解罗丹明B. 研究结果表明, NH2-UiO-66(Zr)具有良好的类铁电响应, 在冷热循环的驱动下其表面可因热释电效应而诱导产生正负电荷, 该电荷会与染料溶液中的氢氧根或溶解氧相结合形成具有强氧化性的羟基自由基和超氧自由基, 进而降解有机染料分子, 其对罗丹明B的降解效率高达99.5%且具有良好的可循环性.

关键词: 热释电催化, 染料降解, 金属有机框架材料, 冷热变换, 废水处理

Abstract:

Pyroelectrically-induced catalysis is emerging as a green and highly efficient technology for the degradation of dye wastewater. Zirconium metal organic framework [NH2-UiO-66(Zr)], as the pyroelectric material, was firstly applied in the degradation of Rhodamine B through harvesting cold-hot alternation energy. NH2-UiO-66(Zr) showed excellent ferroelectric response, in which the positive and negative electric charges could be generated on the surface via the pyroelectric effect under cold-hot alternation. The pyroelectrically induced charges would combine with the hydroxide and the dissolved oxygen to form hydroxy radicals and superoxide radical, resulting in the decomposition of dye. The degradation efficiency of RhB can be up to 99.5% over NH2-UiO-66(Zr) after 100 cold-hot cycles, exhibiting good reusability. This work can broaden the application of MOFs and also provide a new avenue for the treatment of dye wastewater.

Key words: Pyroelectric catalysis, Dye degradation, Metal organic framework, Cold-hot alternation, Wastewater treatment

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