%0 Journal Article
%T Behavior of the herbicide dimepiperate with homoionic clays in aqueous solution
%A Liu Weiping
%A Wang Qiquan
%A Shao Ying
%A Ji Jing
%A <br>Liu Weiping
%A Wang Qiquan
%A Shao Ying
%A Ji Jing
%J 环境科学学报(英文版)
%D 1996
%I 
%X The adsorption of the herbicide dimepiperate with homoionic Fe3+) ,Al3+,Cu2+ ,Ca2+ ,K+ and Na+ saturated montmorillonite in aqueous solution was investigated. The adsorption to six homoionic clays was described well by the Freundlicb equation. The adsorption capacity decreases in order to Cu2+ >Fe3+ >Al3+) >Ca2+ >K+ >Na+ clay and the same order of their acidities except for Cu2+,because Cu2+ has great catalytical ability. The kinetic of its hydrolysis was also studied. Among the six metal ions,Cu2+ clay exhibited a particular affect of catalysis. The IR results suggest that only findirig the adsorption of the hydrolytic product on Cu2+clay and dimepiperate on K+,Na+ clays, there being two compounds (dimepiperate and its hyrolytic product) adsorptions on Fe3+ and Al3+) clays.
%K dimepiperate
%K montmorillonite
%K adsorption isotherm
%K adsorption mechanisms<br>dimepiperate
%K montmorillonite
%K adsorption
%K isotherm
%K adsorption
%K mechanisms.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=5BCBDD27DD9F0CAB4DD904C53C7470DE&yid=8A15F8B0AA0E5323&vid=5D311CA918CA9A03&iid=E158A972A605785F&sid=B1989ED92BA7E896&eid=3389C664025A98F9&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=0&reference_num=0