Synthesis and Characterization of Modified Sepiolite

for the Adsorptive Removal of Rhodamine B from

Wastewater

Zhang Jianshu; Shaomin Liu; Wang Xiaoiao; Xu Pengpeng

Research Article

Synthesis and Characterization of Modified Sepiolite for the Adsorptive Removal of Rhodamine B from Wastewater

Zhang Jianshu^1,2, Shaomin Liu^1,2*, Wang Xiaoiao^1,2 and Xu Pengpeng^1,2

¹Key Laboratory of Safe and Effective Coal Mining (Anhui University of Science and Technology), Ministry of Education, China

²School of Earth Science and Environmental Engineering, Anhui University of Science and Technology, Huainan, China

Corresponding Author

Received Date: November 10, 2019; Published Date: November 15, 2019

Abstract

SDS/sepiolite was successfully synthesized as a low-cost adsorbent used in removal of Rhodamine B (RhB) from aqueous solution. The adsorbing capacity of RhB onto SDS/sepiolite shows a significant increase than the acid sepiolite. Analysis of the specific surface area, morphology, microstructure, chemical structure, chemical bonding substance and functional groups by BET, SEM, FT-IR proved the better adsorption capacity of SDS/sepiolite. The adsorption quantity was calculated to be 24.91mg/g under the optimum condition: SDS/sepiolite loadings of 0.02g, pH of 3 and 50 °C, the concentration of RhB is 35mg/L. obtained by analysis of influencing factors. It was found that a pseudo-second-order equation provided the best correlation to the process of adsorption, R2=0.999. Adsorption isotherm was fitted with Langmuir equation on different temperature, all R²>0.99. Re-adsorption showed SDS/sepiolite has reusable capacity in the adsorption of RhB in environmental protection.

Keywords: Sepiolite; Rhodamine B (RhB); Sodium dodecyl sulfate (SDS); Adsorption isotherm

Article Details

Citation

Shaomin Liu, Zhang Jianshu, Wang Xiaoiao, Xu Pengpeng. Synthesis and Characterization of Modified Sepiolite for the Adsorptive Removal of Rhodamine B from Wastewater. Glob J Eng Sci. 4(1): 2019. GJES.MS.ID.000577.