笼形聚偕氨肟树脂吸附溴和碘  

Polyamidoxime as a "cage" adsorbent for bromine and iodine adsorption

作　　者：吴锦远[1] 杨超雄[1] 

机构地区：[1]中国科学院广州化学研究所

出　　处：《广州化学》1995年第2期1-5,共5页Guangzhou Chemistry

基　　金：广科省自然科学基金

摘　　要：用酸、碱处理的笼形聚偕氨肟树脂（ACAO、BCAO）吸附溴和碘，发现它们的吸附能力无显著差别。吸附客量与溴和碘浓度关系符合Freundlich方程．从扫描电子显微镜观察到碘在树脂表面形成微晶．联系到溴和碘的超当量吸附现象，初步认为，它们是通过物理吸附在树脂表面富集。The 'cage' polydmidoxime treated with aqueous acetic acid, nitric acid , hydrochlorie acid orsodium hydroxide (HOAc/ACAO, HNO3/ACAO, HCl/ACAO and BCAO) were used as theadsorbents for the adsorption of bromine and iodine. The results show that there is littledifference in adsorbability among these adsorbents. The relationship between the adsorptioncapacity and the concentrations of bromine or iodine is conformed with the Freundlich equation.According to the SEM observation, much micro-crystal of iodine were found onto theadsorbents. Connected with the superequivalent adsorption phenomenon of bromine and iodine,the physical adsorption mechanism was proposed.

关 键 词：笼形树脂 聚偕氨肟 溴 碘 吸附 物理吸附 

分 类 号：O613.4[理学—无机化学] TQ323.8[理学—化学]