摘要
本文报导了对铀、锌、铜和锂四种元素具有一定吸附性能的几种钦复合吸附剂研制,其中筛选出钛(Ⅳ)铁(Ⅲ)复合吸附剂较佳,它的制备条件是Ti/Fe(摩尔比)=1/0.5,沉淀pH值为6.0,在加浓铀的人工海水中它的吸铀量为15717微克/克干剂,在天然海水中,逆流通海水十天,它的吸铀量亦是同类吸附剂中较高的,述到114.6微克/克吸附剂.另外,这种复合吸附剂在天然海水中吸铜量是16.55微克/克吸附剂,亦是较高的,它在天然海水中吸锌量是256.1微克/克吸附剂,吸锌量也是较高的.这些结果,对海水综合利用、废水利用环境保护方面等,都有重要的参考价值. 另外,在钛复合附剂电性和结构方面的研究,都取得较有价值的信息.吸铀量大的吸附剂,ξ电位绝对值有小的趋势.产生异质同晶的吸附剂吸铀量与吸锌量都较大.
The screen test of some complex titanferous absorbents with absorb-ability for aranyl, zinc, copper and lithium ion is reported.The absorbent, in which the Ti/Fe(malar ratio) is equal to 1/0.5 with pH=6.0 under precipate, is better for absorbing uranyl, copper and zinc ion.This absorbent of 1g adsorbs uranium of 114.6 ug, copper of 16.56 μg and zinc of 256.1μg in the natural sea water after ten days, but it adsorbs uranium of 15717μg in one gram of absorbent in artificial sea water. These results find applications in sea and waste water or environmental protection.From theoretical point of view, decreasing the absolute value of zeta potential and increasing isomorphism are useful for absorbing uranyl and zine ion.
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
1990年第2期64-69,共6页
Journal of East China Normal University(Natural Science)
关键词
吸附剂
铀
锌
铜
锂
含钛
吸附
titaniferous absorbent uranyl sea water isomorp hism
