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4-丁基杯[8]芳烃修饰的热敏水凝胶对水溶液中五氯苯酚的高效去除

Efficient removal of pentachlorophenol from aqueous solution by 4--butylcalix[8]arene modified thermally sensitive hydrogels.

作者信息

Guo Ying, Liao Bing, Wang Kun, Zhao Yangyang, Yong Qiwen, Zhao Hongwei, Pang Hao

机构信息

Key Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, Chinese Academy of Sciences Guangzhou 510650 People's Republic of China

University of Chinese Academy of Sciences Beijing 100049 People's Republic of China.

出版信息

RSC Adv. 2018 Feb 12;8(13):6840-6848. doi: 10.1039/c8ra00392k. eCollection 2018 Feb 9.

DOI:10.1039/c8ra00392k
PMID:35540329
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9078324/
Abstract

We prepared poly(-isopropylacrylamide--4--butylcalix[8]arene) (PNIPAM-TBCX) hydrogels by copolymerization of -isopropylacrylamide (NIPAM) with 4--butylcalix[8]arene (TBCX) to capture hazardous pentachlorophenol (PCP) from aqueous solution. Adsorption experiments showed that the adsorption capacities of PNIPAM-TBCX hydrogels reached 1.96, 2.08 and 2.02 mg PCP per 1 g of hydrogel, while the molar percentage ratio of TBCX in the hydrogels was as low as 0.5%, 0.7% and 1%. The equilibrium adsorption of PCP on the hydrogels was studied using different adsorption models. In addition, the PNIPAM-TBCX hydrogel still retained its performance when regenerated several times by immersing in water at 323 K.

摘要

我们通过将N-异丙基丙烯酰胺（NIPAM）与4-丁基杯[8]芳烃（TBCX）共聚制备了聚（N-异丙基丙烯酰胺-4-丁基杯[8]芳烃）（PNIPAM-TBCX）水凝胶，以从水溶液中捕获有害的五氯苯酚（PCP）。吸附实验表明，PNIPAM-TBCX水凝胶的吸附容量分别达到每1克水凝胶1.96、2.08和2.02毫克PCP，而水凝胶中TBCX的摩尔百分比低至0.5%、0.7%和1%。使用不同的吸附模型研究了PCP在水凝胶上的平衡吸附。此外，PNIPAM-TBCX水凝胶在323 K的水中浸泡再生几次后仍保持其性能。

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