| Issue |
E3S Web Conf.
Volume 245, 2021
2021 5th International Conference on Advances in Energy, Environment and Chemical Science (AEECS 2021)
|
|
|---|---|---|
| Article Number | 03074 | |
| Number of page(s) | 4 | |
| Section | Chemical Performance Research and Chemical Industry Technology Research and Development | |
| DOI | https://doi.org/10.1051/e3sconf/202124503074 | |
| Published online | 24 March 2021 | |
Adsorption and Photocatalytic Properties of Modified Rectorite-Titanium Dioxide Composites
1 School of Chemical and Biological Engineering, Qilu Institute of Technology, Jinan Shandong. 250200. China
2 School of Pharmacy, Jiangxi Science and Technology Normal University, Nanchang Jiangxi. 330013. China
Yuanyuan Du1* and Xinjun Li1* contributed equally to this work.
* Corresponding author’s email: duyuan01@126.com, 928878031@qq.com
Using rectorite as raw material, REC is modified by nitric acid, TiO2 is attached to the surface of the acidized modified REC tablet to form modified REC-TiO2 composite materials by the sol-gel method, and its adsorption performance and photocatalytic properties were studied. The results show that the adsorption of REC, modified REC, modified REC-TiO2 composite materialtoporads to methylene blue increased with the increase of equilibrium concentration. The process of adsorption MB of modified REC-TiO2 composite materials is an endothermic process. The adsorption of REC, modified REC, modified REC-TiO2 composite materials to MB increased with the increase of temperature. When the temperature is 25 degree, the maximum adsorption capacity of REC is 93.985 mg/g, the maximum adsorption capacity of modified REC is 107.006 mg/g, and the maximum adsorption capacity of modified REC-TiO2 is 120.773 mg/g. The degradation rate of MB and p-nitrophenol by modified REC-TiO2 composite under illumination are 99% and 98%, respectively. The decontamination rate of MB and 4-NP of modified REC-TiO2 composites under darkness was 50% and 0.8%, respectively. Under light conditions, the degradation rate of MB and 4-NP in modified REC-TiO2 composite materials is improved.
© The Authors, published by EDP Sciences, 2021
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