Layer-by-layer self-assembled multilayer films of sulfonated-β-cyclodextrin and its reversible adsorption of methyl orange

被引：0
|
作者：
Qian, Yan [1 ]
Pei, Fangyu [1 ]
Kong, Xiangmei [1 ]
Zhi, Junge [1 ]
机构：
[1] Beijing Inst Technol, Sch Chem & Chem Engn, Beijing Key Lab Photoelect Electrophoton Convers, Beijing 100081, Peoples R China
来源：
2020 6TH INTERNATIONAL CONFERENCE ON ENERGY MATERIALS AND ENVIRONMENT ENGINEERING | 2020年 / 508卷
关键词：
REMOVAL; DYE;
D O I：
10.1088/1755-1315/508/1/012153
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Multilayer film based on photosensitive p-diphenyl diazonium salt (biPh-N2+) and sulfonated-beta-cyclodextrin (S-beta-CD) were fabricated by layer-by-layer self-assembly. The ionic bonds formed between diazonium salt and sulfonic acid ion in the multilayer film converted to covalent bonds and formed stable ultra-thin film when the diazonium groups decomposed under UV light irradiation. Meanwhile, the concentration of S-beta-CD aqueous solution can influence the self-assembled multilayer films, while the pH value (pH=3 similar to 9) had little effect on the self-assembled process except the strong alkaline solution (pH=11). Moreover, based on the electrostatic interactions of S-beta-CD and MO to form a host-guest complexation, the multilayer film of (biPh-N2+/S-beta-CD) 12 can absorb methyl orange (MO), and which can release reversibly in ethanol.
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页数：5
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