吉首大学学报(自然科学版)

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钛掺杂有序介孔硅Ti-KIT-6的制备与表征

王斌,黎璐,蒋崇文,钟宏   

  1. (1.中南大学化学化工学院化学工程系,湖南 长沙 410083;2.中南大学有色金属资源化学教育部重点实验室,湖南 长沙 410083)
  • 出版日期:2016-07-25 发布日期:2016-07-19

Synthesis and Characterization of Titanium Incorporated Ordered Mesoporous Silicate Ti-KIT-6

WANG Bin,LI Lu,JIANG Chongwen,ZHONG Hong   

  1. (1.Department of Chemical Engineering,College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China;2.Key Laboratory of Resource Chemistry of Nonferrous Metals,Ministry of Education,Central South University,Changsha 410083,China)
  • Online:2016-07-25 Published:2016-07-19
  • About author:WANG Bin (1989—),male,was born in Baoding City,Hebei Province,master candidate of College of Chemistry and Chemical Engineering,Central South University;research areas are materials,catalysis and biomass converting technology
  • Supported by:

    National Natural Science Foundation of China (21476267);China-Japan International Cooperation Project (2013DFG50150)

摘要:

以三嵌段共聚物Pluronic P123和正丁醇为结构导向剂,正硅酸乙酯为硅源,钛酸丁酯为钛源,利用水热合成法制备钛掺杂KIT-6介孔分子筛.反应物TEOS,TBOT,P123,HCl,BuOH,H2O的物质的量比为1∶0.014~0.1∶0.017∶1.0~3.0∶1.31∶195.通过XRD,BET,FT-IR和UV-Vis表征制备得到的材料.结果表明,掺钛量对原立方相的骨架结构和结晶度的影响显著.同时研究了制备Ti-KIT-6(20)时盐酸加入量对其结构的影响.

关键词: 钛, KIT-6, 骨架结构, 结晶度, 制备, 表征

Abstract:

Titanium incorporated mesoporous KIT-6 molecular sieves were synthesized by direct hydrothermal method using Pluronic P123 and n-butanol as the structure-directing mixture,tetraethylorthosilicate (TEOS) as the silica source and tetrabutyl titanate (TBOT) as the titanium source.The mole ratio of TEOS,TBOT,P123,HCl,BuOH,H2O,was 1∶0.014~0.1∶0.017∶1.0~3.0∶1.31∶195.The materials were characterized using XRD,BET,FT-IR and UV-Vis.The amount of titanium content influenced the framework structure and crystallinity of the Ia3d phase significantly.The effect of the amount of HCl on the structure of Ti-KIT-6 (20) was also studied.

Key words: titanium, KIT-6, framework structure, crystallinity, preparation, characterization

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