Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (9): 1059-1065.DOI: 10.6023/A1105161 Previous Articles     Next Articles

Full Papers

氧化铝负载多孔沸石球的制备及其在As 吸收中的应用

崔光a, 付云飞b, 罗军a, 刘培生a, 丁爱中b   

  1. a. 北京师范大学核科学与技术学院 北京 100875;
    b. 北京师范大学水科学研究院 北京 100875
  • 投稿日期:2011-08-16 修回日期:2011-12-18 发布日期:2012-01-04
  • 通讯作者: 刘培生
  • 基金资助:

    中央高校基本科研业务费专项资金(No. 2009SD-26)和北京师范大学测试基金(C10)资助项目.

Preparation of Active Alumina Film Supported Multi-pore Zeolite Balls and Application of This Porous System in As Adsorption

Cui Guanga, Fu Yunfeib, Luo Juna, Liu Peishenga, Ding Aizhongb   

  1. a. College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875;
    b. College of Water Science, Beijing Normal University, Beijing 100875
  • Received:2011-08-16 Revised:2011-12-18 Published:2012-01-04
  • Supported by:

    The Fundamental Research Funds for the Central Universities (No. 2009SD-26) and Testing Fund of Beijing Normal University (C10).

A new kind of multi-pore zeolite ball was prepared by powder sintering method at 1100~1300 ℃ for 1 h. Nature zeolite clinoptilolite was used as raw material. The diameter of sintered zeolite ball was 3~5 mm and the macro-pore diameter in the zeolite ball was about 1 mm. Compressive strength of the zeolite ball can reach 1.703×106 Pa. Sintering mechanism was studied by comparing the XRD and IR patterns of nature zeolite and sintered zeolite. Specific surface area of the multi-pore zeolite ball was calculated by BET adsorption method as 7.053 m2/g. Plenty of macro-pores and meso-pores were observed on the multi-pore zeolite ball by SEM method. Activated alumina was supported on the ball and a kind of multi-pore zeolite ball which has a good ability in absorbing the As ions was prepared. The mechanism of As adsorption on multi-pore zeolite balls was also studied. Research shows that the activated alumina supported zeolite ball has a wide application prospect in waste water treatment.

Key words: multi-pore zeolite, powder sintering, activated alumina supported, As absorption