|
|||||
|
|
| 无铝V-β分子筛的合成、表征及催化性能研究 | |
| 引用本文： | 喻铃,何红运,何驰剑,朱华元,文建军,庞文琴.无铝V-β分子筛的合成、表征及催化性能研究[J].高等学校化学学报,2006,27(3):538-542. |
| 作者姓名： | 喻铃 何红运 何驰剑 朱华元 文建军 庞文琴 |
| 作者单位： | 1. 湖南师范大学化学化工学院,长沙,410081 2. 吉林大学无机合成与制备化学国家重点实验室,长春,130012 |
| 基金项目： | 湖南省自然科学基金;教育部重点实验室基金 |
| 摘 要： | 采用水热晶化法在SiO2-V2O5-(TEA)2O-NH4F-H2O体系中合成了无铝V-β分子筛,运用XRD,IR,UV-Vis漫反射,TG/DTA和SEM等技术表征了样品的物理化学特性,证明样品具有BEA拓扑结构,结晶良好,且钒原子进入了分子筛骨架. 探讨了反应混合物组成对V-β分子筛晶化的影响,在以H2O2为氧化剂的苯酚羟基化反应中,考察了V-β分子筛的催化氧化性能. |
| 关 键 词： | V-β分子筛 催化性能 苯酚 羟基化 |
| 文章编号： | 0251-0790（2006）03-0538-05 |
| 收稿时间： | 03 9 2005 12:00AM |
| 修稿时间： | 2005-03-09 |
Synthesis, Characterization and Catalytic Behavior of V-Si-β Molecular Sieves |
|
| YU Ling,HE Hong-Yun,HE Chi-Jian,ZHU Hua-Yuan,WEN Jian-Jun,PANG Wen-Qin.Synthesis, Characterization and Catalytic Behavior of V-Si-β Molecular Sieves[J].Chemical Research In Chinese Universities,2006,27(3):538-542. | |
| Authors: | YU Ling HE Hong-Yun HE Chi-Jian ZHU Hua-Yuan WEN Jian-Jun PANG Wen-Qin |
| Institution: | 1. College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China; 2. State Key Laboratory of Inorganic Synthesis &; Preparative Chemistry,Jilin University,Changchun 130012,China |
| Abstract: | V-β molecular sieves through isomorphous replacement of Si by V in zeolite β were successfully synthesized via hydrothermal procedure. The synthesis conditions were as follows: the molar chemical composition of the mixture: 60SiO2-xV2O5-y(TEA)2O-zH2O-wNH4F ( 1≤x≤6,y≥16,500≤z≤800,w≥5 ),reaction temperature 413 K,reaction time 12 d. The synthesized samples are characterized by XRD,IR,UV-Vis,TG,DTA and SEM. The results confirm that V-β molecular sieves contain a β phase of good species,and show the presence of V iron in the framework position. In the system the catalytic behavior of V-β molecular sieves in the hydroxylation of phenol with H2O2 as the oxidant was also investigated. |
| Keywords: | V-β molecular sieve Catalytic behavior Phenol Hydroxylation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 | |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 | |