Preparation and Adsorption Behavior of Mesoporous Silica MCM-41 Derived from Organo-silicone Waste Residue

被引：0

作者：

Cai Y. ^{[1
]}

Zheng S. ^{[1
]}

Hu Y. ^{[2
]}

Zhang L. ^{[1
]}

Zhu Z. ^{[1
]}

Zhang P. ^{[1
]}

机构：

[1] Key Laboratory of Environment and Resource Utilization of Poyang Lake and Resource Utilization, Ministry of Education, School of Resource Environment and Chemical Engineering, Nanchang University, Nanchang

[2] Ganzhou Institute of Animal Science, Ganzhou

来源：

Zhang, Ping (zhangping@ncu.edu.cn) | 1600年 / Chinese Ceramic Society卷 / 49期

关键词：

Adsorption; Hydrothermal; MCM-41; Silicone waste residue;

D O I：

10.14062/j.issn.0454-5648.20210128

中图分类号：

学科分类号：

摘要：

Organic silicon waste residue was used as silicon source to prepare MCM-41 mesoporous silica by using alkali fusion and hydrothermal reaction method. The effect of alkali fusion time and liquid-solid ratio on extraction rate of the silicon source was evaluated, while the effect of CTAB/SiO2 molar ratio on structure of the mesoporous silica was detailly explored. Besides, adsorption performance of the MCM-41 toward Rhodamine B (RhB) was comprehensively studied. It was found that the MCM-41 possessed highest degree of ordered mesoporous structure, after calcining for 2 h, with the liquid-solid ratio of 50:1 mL/g, and CTAB/SiO2 molar ratio of 1:0.3. Accordingly, the specific surface area, pore size and pore volume of the sample were 783.23 m2/g, 2.529 nm and 0.7479 cm3/g, respectively. In addition, the RhB could be effectively removed with MCM-41, with the maximum efficiency to be 295.23 mg/g. Isotherm and kinetic studies revealed that the RhB removal process could be well fitted with Langmuir and pseudo-second-order kinetic models. Meanwhile, owing to its spontaneous and exothermic adsorption, MCM-41 exhibited a high recyclability. © 2021, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.

引用

页码：1412 / 1419

页数：7

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