功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2013年
24期
3546-3549
,共4页
刘兴甜%张桂芳%赵义平%李培欣%陈莉%冯霞
劉興甜%張桂芳%趙義平%李培訢%陳莉%馮霞
류흥첨%장계방%조의평%리배흔%진리%풍하
凹凸棒土%改性处理%PVDF 膜%Ni(Ⅱ)%吸附性
凹凸棒土%改性處理%PVDF 膜%Ni(Ⅱ)%吸附性
요철봉토%개성처리%PVDF 막%Ni(Ⅱ)%흡부성
attapulgite%modification%PVDF membrane%Ni(Ⅱ)%adsorption
分别将凹凸棒土(ATP)酸化处理、有机化预处理以及将单宁酸用甲醛固载在凹凸棒土上,进而将改性凹凸棒土与聚偏氟乙烯(PVDF)复合,采用相转化法制备PVDF/改性凹凸棒土复合膜。利用红外、透射电镜对改性凹凸棒土的结构和形态进行了表征,采用紫外吸收的方法研究了复合膜对水溶液中 Ni(Ⅱ)的吸附性能。研究结果表明,由单宁酸改性的凹凸棒土制备的PVDF复合膜能有效地去除水溶液中的 Ni (Ⅱ),其吸附量较纯凹凸棒土改性的 PVDF 膜提高了34%。
分彆將凹凸棒土(ATP)痠化處理、有機化預處理以及將單寧痠用甲醛固載在凹凸棒土上,進而將改性凹凸棒土與聚偏氟乙烯(PVDF)複閤,採用相轉化法製備PVDF/改性凹凸棒土複閤膜。利用紅外、透射電鏡對改性凹凸棒土的結構和形態進行瞭錶徵,採用紫外吸收的方法研究瞭複閤膜對水溶液中 Ni(Ⅱ)的吸附性能。研究結果錶明,由單寧痠改性的凹凸棒土製備的PVDF複閤膜能有效地去除水溶液中的 Ni (Ⅱ),其吸附量較純凹凸棒土改性的 PVDF 膜提高瞭34%。
분별장요철봉토(ATP)산화처리、유궤화예처리이급장단저산용갑철고재재요철봉토상,진이장개성요철봉토여취편불을희(PVDF)복합,채용상전화법제비PVDF/개성요철봉토복합막。이용홍외、투사전경대개성요철봉토적결구화형태진행료표정,채용자외흡수적방법연구료복합막대수용액중 Ni(Ⅱ)적흡부성능。연구결과표명,유단저산개성적요철봉토제비적PVDF복합막능유효지거제수용액중적 Ni (Ⅱ),기흡부량교순요철봉토개성적 PVDF 막제고료34%。
In this work,attapulgite was modified by acidification,organic pretreatment and load the tannin acid on the attapulgite by formaldehyde,respectively.Then PVDF/modified attapulgite composite membrane was prepared by the method of phase inversion.The structure and morphology of the modified attapulgite was char-acterized by Fourier transform infrared and transmission electron microscope,and the adsorption of Ni(Ⅱ)was studied by the method of ultraviolet absorption.The results showed that composite membrane filled with the tannic acid-modified attapulgite could remove the Ni(Ⅱ)in the aqueous solution effectively,and the absorption increased by 34% than the membrane filled with pure attapulgite modified.