钛基金属-有机框架材料的改性及其催化性能研究

曲云鹏; 张丙兴; 石金彪; 谭秀娘; 韩布兴; 杨冠英; 张建玲

doi:10.11949/0438-1157.20191213

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钛基金属-有机框架材料的改性及其催化性能研究

催化、动力学与反应器 | 更新时间：2026-07-24

- 钛基金属-有机框架材料的改性及其催化性能研究
- Study on modification of titanium-based metal-organic framework and catalytic performance
- 化工学报 2020年71卷第1期页码：283-289
- 作者机构：
  
  1. 中国科学院化学研究所，北京 100190
  2. 中国科学院大学化学科学学院，北京 100049
- 作者简介：
  
  曲云鹏（1997—），男，学士，quyunpeng15@mails.ucas.ac.cn
  张建玲（1974—），女，博士，研究员，zhangjl@iccas.ac.cn
- 基金信息：
  
  国家自然科学基金项目(21525316;21633254)
- DOI：10.11949/0438-1157.20191213
  中图分类号： TQ 028.8
- 收稿：2019-10-23，
  
  修回：2019-11-07，
  
  网络首发：2020-08-12，
  
  纸质出版：2020-01-05
- 稿件说明：
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曲云鹏, 张丙兴, 石金彪, 谭秀娘, 韩布兴, 杨冠英, 张建玲. 钛基金属-有机框架材料的改性及其催化性能研究[J]. 化工学报, 2020, 71(1): 283-289

QU Yunpeng, ZHANG Bingxing, SHI Jinbiao, TAN Xiuniang, HAN Buxing, YANG Guanying, ZHANG Jianling. Study on modification of titanium-based metal-organic framework and catalytic performance[J]. CIESC Journal, 2020, 71(1): 283-289
曲云鹏, 张丙兴, 石金彪, 谭秀娘, 韩布兴, 杨冠英, 张建玲. 钛基金属-有机框架材料的改性及其催化性能研究[J]. 化工学报, 2020, 71(1): 283-289 DOI： 10.11949/0438-1157.20191213.

QU Yunpeng, ZHANG Bingxing, SHI Jinbiao, TAN Xiuniang, HAN Buxing, YANG Guanying, ZHANG Jianling. Study on modification of titanium-based metal-organic framework and catalytic performance[J]. CIESC Journal, 2020, 71(1): 283-289 DOI： 10.11949/0438-1157.20191213.

摘要

使用双氧水在一定温度下对钛基金属-有机框架材料NH

-MIL-125进行改性处理，制备得到一系列材料，系统地研究了改性方法及改性条件对材料性能的影响。结果表明，经改性处理后的材料，在可见光催化苯甲醇氧化反应中的催化速率有显著提高；同时，改性过程中的双氧水用量及改性温度对材料的结构、性质和光催化性能都有十分重要的影响。当双氧水为10 ml、改性温度为50℃时，改性材料具有优异的催化活性、选择性以及良好的稳定性，其催化速率与NH

-MIL-125相比提高近6倍。

Abstract

A series of materials were prepared by modifying titanium based metal-organic framework material NH

-MIL-125 with hydrogen peroxide at a certain temperature. The effects of modification methods and conditions on the properties of materials were studied systematically. However

-MIL-125 as a photocatalyst suffers from low catalytic activity and stability

which largely restrict its practical applications. In order to improve the catalytic activity of NH

-MIL-125

a solvothermal route by using H

was used to modify

-MIL-125. A series of materials were synthesized by treating NH

-MIL-125 with different volumes of H

at different temperatures. X-ray diffraction

scanning electron microscope

transmission electron microscope

ultraviolet-visible light absorption spectroscopy

Fourier-transform infrared spectroscopy

X-ray photoelectron spectroscopy and N

adsorption analysis were used to characterize the structures and properties of the obtained product. Furthermore

their photocatalytic performances for the visible-light-driven oxidation of benzyl alcohol were tested. The results show that the product modified by 10 ml H

at 50℃ exhibits excellent catalytic activity and selectivity. The maximum turnover frequency is nearly 6 times as high as that of NH

-MIL-125 at the same experimental conditions. The partial loss of organic ligands and the introduction of peroxide groups could generate more catalytic-active sites

which is responsible for the improved catalytic activity.

关键词

Keywords

references

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