Characterization and adsorption behaviors of a novel synthesized mesoporous silica coated carbon composite

SaiWang; Songsong Xu; Chengbao Liu; Feng Chen; Dongtian Wang; Shouqing Liu; Zhigang Chen; Zhengying Wu

doi:10.1016/j.cjche.2015.07.014

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Characterization and adsorption behaviors of a novel synthesized mesoporous silica coated carbon composite

第25届中国过程控制会议专栏 | Updated：2026-01-06

- Characterization and adsorption behaviors of a novel synthesized mesoporous silica coated carbon composite
- Characterization and adsorption behaviors of a novel synthesized mesoporous silica coated carbon composite
- 中国化学工程学报（英文版） 2016年24卷第1期页码：190-195
- Affiliations：
  
  2 Department of Clinical Oncology, the Second Affiliated Hospital of Soochow University,Suzhou,China,215004
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2015.07.014
  中图分类号：
- 纸质出版：2016
- Accepted：
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SaiWang, Songsong Xu, Chengbao Liu, 等. Characterization and adsorption behaviors of a novel synthesized mesoporous silica coated carbon composite[J]. 中国化学工程学报（英文版）, 2016,24(1):190-195.

SaiWang, Songsong Xu, Chengbao Liu, Feng Chen, Dongtian Wang, Shouqing Liu, Zhigang Chen, Zhengying Wu. Characterization and adsorption behaviors of a novel synthesized mesoporous silica coated carbon composite[J]. Chin.J.Chem.Eng., 2016, 24(1): 190-195.
SaiWang, Songsong Xu, Chengbao Liu, 等. Characterization and adsorption behaviors of a novel synthesized mesoporous silica coated carbon composite[J]. 中国化学工程学报（英文版）, 2016,24(1):190-195. DOI： 10.1016/j.cjche.2015.07.014.

SaiWang, Songsong Xu, Chengbao Liu, Feng Chen, Dongtian Wang, Shouqing Liu, Zhigang Chen, Zhengying Wu. Characterization and adsorption behaviors of a novel synthesized mesoporous silica coated carbon composite[J]. Chin.J.Chem.Eng., 2016, 24(1): 190-195. DOI： 10.1016/j.cjche.2015.07.014.

摘要

Abstract

A novel mesoporous silica coated carbon composite (denoted SEG) with hierarchical pore structure has been successfully prepared in an aqueous solution that contains triblock copolymer template

aluminum chloride

siliceous source and expanded graphite. Textural property and morphology of the SEG composite were characterized by the combination of X-ray diffraction

adsorption-desorption

scanning electron microscopy

transmission electron microscopy and Fourier transform infrared measurements. Results show that mesoporous silica is steadily and uniformly grown on the surface of the graphite slices and the thickness of the silica layer can be finely tuned according to the silica/C molar ratio in the initial reaction solution. This newly synthesized SEG composite shows greatly increased adsorption capacity to methylene blue than the pristine expanded graphite in the batch tests. Both Langmuir and Frendlich models were further used to evaluate the adsorption isotherms of methylene blue over expanded graphite and SEG samples with different silica contents. Finally

pseudosecond-order model was used to describe the kinetics of methylene blue over expanded graphite and the silica-carbon composites.

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