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《Bulletin of the Chinese Ceramic Society》 2010-05
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Study on the Adsorption Properties of Cr(Ⅵ) by Montmorillonite/polypropylene Thiourea

CHANG Yue1,2,LIU Hong-wei1,LV Xue-qian1,REN Xiao-ning1,CHEN Hu-kui1,ZHA Fei1,2,HAO Ya-dong3(1.College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou 730070,China;2.Key Laboratory of Eco-Environment-Related Polymer Materials,Ministry of Education,Lanzhou 730070,China;3.The Second High School of Weiyuan,Weiyuan 748201,China)  
The composite materials of the montmorillonite/polypropylene thiourea were prepared and the adsorption property of the adsorbent for Cr(Ⅵ) was studied.The effects of shock time,the amount of the adsorbent,pH and temperature on the removal of Cr(Ⅵ) were investigated.The results indicated that the best conditions were the temperature 313 K,the adsorbent amount 20 mg,the shock time 3 h and the pH 1,the maximum adsorption capacity 53.13 mg/g.Adsorption isotherm was well described by Langmuir model.The kinetic datas indicated that the adsorption fitted well with the pseudo-second-order kinetic model.
【Fund】: 2007中科院“西部之光”人才培养计划地方项目;; 2008甘肃省自然基金项目(0803RJZA007);; 2010西北师范大学知识与科技创新工程项目(nwnu-kjcxgc-03-63)
【CateGory Index】: X703.1
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