REMOVAL OF RHODAMINE B USING MESOPOROUS CARBON MATERIALS WITH SBA-15 AS TEMPLATE

Nguyễn Thị Hồng Hoa; Phó Việt Hoàng; Đặng Thị Lý; Vũ Xuân Mạnh

doi:10.34238/tnu-jst.7443

REMOVAL OF RHODAMINE B USING MESOPOROUS CARBON MATERIALS WITH SBA-15 AS TEMPLATE

About this article

Received: 28/02/23 Revised: 05/05/23 Published: 05/05/23

Authors

1. Nguyen Thi Hong Hoa , TNU - University of Sciences
2. Pho Viet Hoang, TNU - University of Sciences
3. Dang Thi Ly, 1) TNU - University of Sciences 2) Nguyen Duc Canh high school, Thai Binh
4. Vu Xuan Manh, 1) TNU - University of Sciences, 2) Nguyen Hue high school, Thai Nguyen

Abstract

The objective of this work is to evaluate the Rhodamine B (RhB) adsorption capacity of mesoporous carbon material (OMC (SBA-15)) based on the structure of SBA-15 material. Synthetic material has the advantages of carbon materials, which have good organic adsorption capacity, and mesoporous materials, which have large pore sizes. The characteristic methods (X-ray diffraction method, transmission electron microscopy method, nitrogen adsorption-desorption method, etc.) show that the obtained material has a mesoporous structure with an average pore size of 4.5 nm and a surface area of 1126 m²/g. The synthesized material OMC (SBA-15) adsorbed RhB well; the adsorption capacity increased with time and concentration. The maximum adsorption capacity of RhB on OMC (SBA-15) material, calculated according to the Langmuir adsorption isotherm model, is 400 mg/g. The adsorption process is consistent with the Langmuir isotherm model, and the kinetics are consistent with the apparent second-order kinetics equation.

Keywords

Adsorption; SBA-15; Carbon material; Mesoporous carbon; Rhodamine B

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DOI: https://doi.org/10.34238/tnu-jst.7443

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