环境工程学报2012,Vol.6Issue(12):4367-4371,5.
聚酰胺胺-环糊精共聚物对水中2,4-二氯酚的吸附
Adsorption of 2,4-dichlorophenol in aqueous solutions by polyamidoamine-cyclodextrin copolymer
摘要
Abstract
Batch adsorption experiments were carried out for the removal of 2, 4-dichlorophenol (DCP) from aqueous solutions using a novel polyamidoamine-cyclodextrin copolymer (PAMAM-CD). The main factors which might affect the adsorption capacity were investigated by single factor tests, including contact time, pH, adsorbent dosage( W), solution volume ( V), DCP initial concentration (Co) and adsorption temperature (T). The adsorption mechanism of PAMAM-CD toward DCP was studied. The results of the orthogonal test indicated that the effect of adsorption conditions on the adsorption capacity was in the following order: CO 〉 W 〉 V 〉 T. And the most suitable adsorption conditions were determined as follows: Co = 150 mg/L, W =25 mg, V = 75 mL, T = 15℃. The adsorption capacity of DCP was even up to 105.6 mg/g under these conditions. The adsorp- tion mechanism was probably simultaneously dominated by complex, hvdrogen bonding, etc.关键词
聚酰胺胺/环糊精/2,4-二氯酚/吸附Key words
polyamidoamine/cyclodextrin/2, 4-dichlorophenol/adsorption分类
资源环境引用本文复制引用
李宁,王超..聚酰胺胺-环糊精共聚物对水中2,4-二氯酚的吸附[J].环境工程学报,2012,6(12):4367-4371,5.基金项目
国家自然科学基金资助项目 ()
重庆高校创新团队建设计划 ()