高内相乳液原位聚合制备多孔复合材料吸附铅离子

doi:10.11896/cldb.22040290

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Abstract Preparation of porous complex materials using small molecular surfactant as the stabilizer of high internal emulsion has potential harms to the environment. In this study, porous composites (Tween 85/SiO₂-PAA) were prepared by in-situ polymerization after high internal phase monomer emulsion with an internal phase volume fraction of 75% (HIPE) was prepared under the help of acrylic acid and N, N- methyl double acrylic acid monomer solution as continuous phase, peanut oil as dispersed phase, Tween 85/SiO₂ (mass ratio 1∶1) as composite stabilizer. Scanning electron microscopy (SEM) showed that porous composites appeared concave convex two-dimensional interpenetrating pore structure, infrared spectra (FTIR) showed that many active groups existed in the polymer molecular structure such as carboxyl, amino and silicon hydroxyl. The composites presented a good adsorption capacity for low concentration lead ions, and the removal rate was up to 97.62%. The adsorption process conformed to the first-order kinetic and Langmuir isothermal adsorption model. The maximum saturated adsorption capacity was 89.35 mg/g, and the adsorption mechanism was the chemical interaction between -COOH, -NH₂, -Si-OH and lead ions.

Key words： high internal phase emulsion in-situ polymerization complex material adsorption lead ion

Published: 10 August 2023 Online: 2023-08-07

CLC number:	X793
	TB34

Fund:National Natural Science Foundation of China (21964006) and the Basic Ability Improvement Project for Young and Middle-aged Teachers in Guangxi Universities(2018KY0242).

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	LIANG Ning
	LU Xiaofeng
	ZHOU Jierong
	HUANG Likui
	WANG Junzheng

Cite this article:

LIANG Ning,LU Xiaofeng,ZHOU Jierong, et al. Preparation of Porous Composite Material by In-situ Polymerization of High Internal Phase Emulsion for Adsorption of Lead Ions[J]. Materials Reports, 2023, 37(15): 22040290-7.

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http://www.mater-rep.com/EN/10.11896/cldb.22040290 OR http://www.mater-rep.com/EN/Y2023/V37/I15/22040290

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