东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2011, Vol. 32 ›› Issue (9): 1278-1281.DOI: -

• 论著 • 上一篇    下一篇

锐钛矿制备钛硅分子筛ETS-10及其表征分析

刘丽影;覃文军;翟玉春;徐冬;   

  1. 东北大学材料与冶金学院;东北大学研究院;莫纳什大学工程学院;
  • 收稿日期:2013-06-19 修回日期:2013-06-19 发布日期:2013-04-04
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家自然科学基金资助项目(51074205)

Synthesis and characterization of titanium silicalite zeolite ETS-10 using anatase

Liu, Li-Ying (1); Tan, Wen-Jun (2); Zhai, Yu-Chun (1); Xu, Dong (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China; (2) Research Academy, Northeastern University, Shenyang 110819, China; (3) School of Engineering, Monash University, Melbourn 3800, Australia
  • Received:2013-06-19 Revised:2013-06-19 Published:2013-04-04
  • Contact: Liu, L.-Y.
  • About author:-
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摘要： 研究了在无氟离子条件下以锐钛矿为钛源,硅酸钠为硅源,以水热法制备钛硅分子筛ETS-10的合成工艺,采用XRD、扫描电镜、热重分析、氮气吸附-脱附等不同分析方法对制备的ETS-10的形貌及性质进行表征分析.结果表明,产物中ETS-10的结晶度良好、成规则的截菱锥形,颗粒大小均匀,为微孔结构,孔径分布均匀,约为0.7 nm,BET比表面积和孔容较大,分别为333 m2/g和0.21 cm3/g.本实验制备的ETS-10含有少量的未反应锐钛矿杂质,但其对CO2,CH4及N2的吸附性能与传统法制得的ETS-10相似,且产物对CO2/N2的吸附选择性较高,可应用于烟道气中CO2的分离和回收.

关键词: 钛硅分子筛, ETS-10, 锐钛矿, 比表面积, 气体吸附

Abstract: The synthesis process of titanium silicalite zeolite ETS-10 using commercial anatase and Na2SiO3 without the addition of fluoride ions was investigated. The synthesized ETS-10 was characterized by X-ray diffraction, scanning electron microscopy, thermogravimetric and N2 adsorption-desorption. The results showed that the prepared ETS-10 exhibits high BET surface area and pore volume of 333 m2/g and 0.21 cm3/g, respectively. ETS-10 is well crystallined with the morphology of truncated bipyramid and uniform particle size. The microporous structure with a uniform pore size of 0.7 nm is observed. Although the prepared ETS-10 contains a small amount of unreacted anatase, it shows similar adsorption performances in comparison with the common ETS-10. It also could be an effective adsorbent for CO2 capture from the flue gas stream due to the high selectivity of CO2/N2.

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