环境工程学报2011，Vol.5Issue(4)：861-864,4.
苯胺-2,4-二氨基酚共聚物对水中Cr(Ⅵ)吸附性能的研究
Study on adsorption of chromium (Ⅵ) from aqueous solutions by poly ( aniline-co-2, 4-diaminophenol)
摘要
Abstract
A batch system was used to evaluate the adsorption properties of chromium ion onto a novel copolymer poly (aniline-co-2,4-diaminophenol) (PADAP), which was synthesized by the chemical polymerization process of aniline monomers and 2,4-diaminophenol dihydrochloride. The results showed that the sorbent had excellent adsorption ability for chromium ( Ⅵ ) , and the adsorption process was spontaneous and endothermic,which follows Langmuir isotherm. The adsorption kinetics followed the mechanism of the pseudo-second-order equation. The pH of solution had a significant impact on adsorption, where the solution pH favored the adsorption was 3～6. The sorbent could be easily eluted by 1 mol/L HNO3, where the desorption efficiency was 98％.Based on the adsorption kinetics and FT-IR analysis, the removal behavior of Cr( Ⅵ ) was mainly a combination of electrostatic attraction and ion exchange.关键词
苯胺/盐酸-2,4-氨基苯酚/共聚物/吸附/铬(Ⅵ)Key words
aniline/ 2,4-diaminophenol dihydrochloride/ copolymer/ adsorption/ chromium(Ⅵ)分类
资源环境引用本文复制引用
孙立,魏钟波,胡秋婵,符浩,沈立锋,翟建平..苯胺-2,4-二氨基酚共聚物对水中Cr(Ⅵ)吸附性能的研究[J].环境工程学报,2011,5(4):861-864,4.基金项目
南京大学研究生科研创新基金资助(2010CL07) （2010CL07）
