摘要
研究了ＨＡｕＣｌ４在碱式纤维素基磁性聚偕胺肟树脂（ＢＭＡＯ）上的吸附动力学。吸附容量与吸附时间关系在初吸附的３０ｍｉｎ内可表示为Ｑ＝０．６４ｔ０．４。粒内扩散是吸附速度的控制阶段。在吸附过程中，同时发生氧化还原反应，Ａｕ（０）以不同的聚集态附着在树脂表面。
The adsorption kinetics of alkaline cellulose-based magnetie polyamidoxime adsorbent (BMAO) for HAuCl 4 was investigated. The relation between the adsorption capacity and the contact time within the initial 30 minutes may be expressed as Q=0.64t 0.4 . The rate-determining step of adsorption was found to be intra-particle diffusion. The redox reaction takes place during the adsorption process and the obtained Au(0)with a variety of aggregated structure adhere on the adsorbents.
出处
《功能高分子学报》
CAS
CSCD
1997年第3期307-312,共6页
Journal of Functional Polymers
关键词
纤维素基
磁性树脂
聚偕胺肟
氯金酸
吸附动力学
Cellulose-Based adsorbent, Magnetic resin, Polyamidoxime, Chloroauric acid, Adsorption kineties, Redox reaction
