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化学学报 >

2012 , Vol. 70 >Issue 9: 1059 - 1065

DOI: https://doi.org/10.6023/A1105161

研究论文

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 ,
  • 付云飞 ,
  • 罗军 ,
  • 刘培生 ,
  • 丁爱中
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  • 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

收稿日期: 2011-08-16

  修回日期: 2011-12-18

  网络出版日期: 2012-01-04

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.

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

  • Cui Guang ,
  • Fu Yunfei ,
  • Luo Jun ,
  • Liu Peisheng ,
  • Ding Aizhong
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  • a. College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875;
    b. College of Water Science, Beijing Normal University, Beijing 100875

Received date: 2011-08-16

  Revised date: 2011-12-18

  Online 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).

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摘要

通过粉末烧结法制备了多孔沸石球, 烧结温度为1100～1300 ℃, 烧结时间为1 h. 所用原料为天然斜发沸石粉末, 烧结所得多孔沸石球的直径为3～5 mm, 宏孔孔径约为1 mm, 抗压强度可达1.703×106 Pa. 通过对比烧结前后沸石的X射线衍射谱和红外光谱, 对烧结机理进行了初步分析. 采用BET气体吸附法测得该多孔沸石的比表面积为7.053m6/g. 通过SEM 分析也观察到了该多孔沸石具有优良的大孔和宏孔结构. 在上述多孔沸石表面负载活性氧化铝, 得到了对砷离子具有较强吸附能力的活性氧化铝负载多孔沸石球, 并对其吸附机理进行了研究. 研究表明, 该沸石球在水处理方面有广阔的应用前景.

关键词： 多孔沸石; 粉末烧结; 活性氧化铝负载; 砷吸附

本文引用格式

崔光 , 付云飞 , 罗军 , 刘培生 , 丁爱中 . 氧化铝负载多孔沸石球的制备及其在As 吸收中的应用[J]. 化学学报, 2012 , 70(9) : 1059 -1065 . DOI: 10.6023/A1105161

Abstract

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

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