Related Experiment Video
Updated: Jun 14, 2026

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
Published on: September 29, 2023
Adsorption property and mechanism of composite adsorbent PMAA/SiO2 for aniline
Fuqiang An1, Xiaoqin Feng, Baojiao Gao
1Department of Chemical Engineering, North University of China, Taiyuan 030051, People's Republic of China. anfuqiang@nuc.edu.cn
Abstract:
In this paper, functional monomer methacrylic acid (MAA) was grafted onto the surface of silica gel particles using 3-methacryloxypropyl trimethoxysilane (MPS) as intermedia, and grafting particles PMAA/SiO(2) were prepared. The adsorption properties and mechanism of PMAA/SiO(2) towards aniline were researched through batch and column adsorption methods. The experimental results showed that PMAA/SiO(2) possesses strong adsorption ability for aniline with interaction of hydrogen bond. The saturated adsorption amount could reach up to 140 mg g(-1). The empirical Langmuir isotherm was found to agree well with the equilibrium adsorption data. pH and temperature were found to have great influence on the adsorption amount. Finally, PMAA/SiO(2) was observed to possess excellent reusability properties as well.
Related Concept Videos
Basicity of Heterocyclic Aromatic Amines
Adsorption of Gases on Solids
Basicity of Aromatic Amines
Aryldiazonium Salts to Azo Dyes: Diazo Coupling
Diazonium Group Substitution: –OH and –H
Adsorption Isotherms I

