Comparison of Conventional and Microwave-assisted Synthesis and Characteristics of Aluminum-pillared Rectorite  

作　　者：杜冬云 陆晓华 

机构地区：[1]Insititute of Environmental Science, Huazhong University of Science and Technology,Wuhan 430074,China Department of Chemistry and Environment Engineering,Hubei Normal University,Huangshi 435002,China [2]Insititute of Environmental Science, Huazhong University of Science and Technology,Wuhan 430074,China Prof

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2005年第2期53-56,共4页武汉理工大学学报（材料科学英文版）

基　　金：FundedbytheNationalTenthfiveyearsProject("863")(2002AA601300)

摘　　要：The synthesis and characterization of aluminum-pillared rectorite were studied. The synthesis was conducted with both conventional heating and microwave irradiation. Microwave irradiation was found to enhance the intercalation and ion-exchange during synthesis, and to be able to produce the rectorite with a larger d_(001) and a better uniformity. The specific surface area is 180 m^2/g and basal spacing is 3.2 nm. The texture change and thermal and hydrothermal stability of cross-linked rectorite were examined using XRD, FTIR, nitrogen-adsorption and TGA. The experimental results show that the aluminum-pillared rectorite, after calcined at 800 ℃ for 3 hours, can keep the basal aluminum-silicate texture and would not disperse in water at room or an elevated temperature. The aluminum-pillared rectorite shows a high specific surface area, good thermal and hydrothermal stability, and is promising in applications as catalyst carriers and adsorbents for waste treatment.The synthesis and characterization of aluminum-pillared rectorite were studied. The synthesis was conducted with both conventional heating and microwave irradiation. Microwave irradiation was found to enhance the intercalation and ion-exchange during synthesis, and to be able to produce the rectorite with a larger d_(001) and a better uniformity. The specific surface area is 180 m^2/g and basal spacing is 3.2 nm. The texture change and thermal and hydrothermal stability of cross-linked rectorite were examined using XRD, FTIR, nitrogen-adsorption and TGA. The experimental results show that the aluminum-pillared rectorite, after calcined at 800 ℃ for 3 hours, can keep the basal aluminum-silicate texture and would not disperse in water at room or an elevated temperature. The aluminum-pillared rectorite shows a high specific surface area, good thermal and hydrothermal stability, and is promising in applications as catalyst carriers and adsorbents for waste treatment.

关 键 词：RECTORITE pillared-clay microwave irradiation CATALYSIS adsorption 

分 类 号：TB39[一般工业技术—材料科学与工程]