Structure characterization of La and V incorporated MCM-41 molecular sieves and its catalytic performance for phenol hydroxylation

WANG Yuhong; YUAN Lianqun; YU Lei; XIANG Tingting

您当前的位置：

首页 >

文章列表页 >

Structure characterization of La and V incorporated MCM-41 molecular sieves and its catalytic performance for phenol hydroxylation

更新时间：2025-12-10

- Structure characterization of La and V incorporated MCM-41 molecular sieves and its catalytic performance for phenol hydroxylation
- CIESC Journal Issue 10, Pages: 2565-2572(2010)
- 作者机构：
  
  上海应用技术学院化学与环境工程学院应用催化研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 October 2010，
  
  Published：05 October 2010
- 稿件说明：
移动端阅览
WANG Yuhong, YUAN Lianqun, YU Lei, et al. Structure characterization of La and V incorporated MCM-41 molecular sieves and its catalytic performance for phenol hydroxylation[J]. CIESC Journal, 2010, (10): 2565-2572.
DOI：

WANG Yuhong, YUAN Lianqun, YU Lei, et al. Structure characterization of La and V incorporated MCM-41 molecular sieves and its catalytic performance for phenol hydroxylation[J]. CIESC Journal, 2010, (10): 2565-2572. DOI：

摘要

采用水热法合成了双金属镧(La)和钒(V)取代MCM-41分子筛催化剂，使用X射线衍射、N2吸附、傅里叶变换红外光谱、紫外-可见漫反射光谱以及热重等表征技术研究了催化剂的结构。结果表明，该材料具有高度有序的二维六方结构，金属La和V以高度分散的四配位状态存在于分子筛的骨架中。在苯酚过氧化氢羟基化反应中La-V-MCM-41分子筛表现出比TS-1催化剂更好的催化活性和选择性，金属La和V协同作用，在提高H2O2有效利用率的同时，增加了目标产物苯二酚中对苯二酚的含量。La-V-MCM-41催化剂可以通过焙烧活化的方法进行再生使用。

Abstract

Bimetallic La and V incorporated MCM-41 molecular sieves were synthesized at hydrothermal condition and characterized by powder X-ray diffraction (XRD)

thermo gravimetry (TG)

Fourier-transform infrared spectroscopy(FTIR)

ultraviolet-visible diffuse reflectance spectra (UV-Vis)and N2 adsorption techniques.The results indicated that all the samples exhibited typical hexagonal arrangement of mesoporous structure with high surface area and the heteroatoms were

at least in some extent

incorporated into the framework of MCM-41.Catalytic performances of the obtained materials were evaluated in the hydroxylation of phenol with H2O2.The results showed that the La-V-MCM-41 catalyst had higher activity and selectivity compared with the TS-1 catalyst.By addition of metal La

not only the utilization efficiency of H2O2 improved

but also the content of hydroquinone increased.La-V-MCM-41 catalysts could be regenerated and reused by calcination.

关键词

Keywords

references

Views

327

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Structure and antibacterial ability of in situ silver-modified hexagonal mesoporous silica

Synthesis of mesoporous molecular sieve by addition of natural clay in raw materials at room temperature

Preparation and characterization of MCM-41 supported carboxyl Pd（Ⅱ）complex catalysts and their catalytic performance(Ⅱ) Catalytic performance for Heck coupling reaction

Preparation and characterization of Pt-Sn-Li/Al2O3/FeCrAl catalyst and its catalytic performance for long chain alkane dehydrogenati

Mechanism of surface control reaction and characterization of graft copolymers of acrylamide onto starch

Related Author

FU Zaihui

CHEN Junming

DING Zhijie

WANG Fei

CHEN Junhua

TANG Yajing

YIN Hengbo

ZHAO Qian

Related Institution

南京林业大学化工学院

安徽科技学院化学系

湖南师范大学化学化工学院

江苏大学化学化工学院

浙江大学催化研究所

⁰