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Article

Adsorption of Toxic Tetracycline, Thiamphenicol and Sulfamethoxazole by a Granular Activated Carbon (GAC) under Different Conditions

by
Risheng Li
1,2,
Wen Sun
1,2,
Longfei Xia
1,2,
Zia U
3,*,
Xubo Sun
1,2,
Zhao Wang
1,2,
Yujie Wang
4,* and
Xu Deng
5
1
Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an 710075, China
2
Key Laboratory of Degraded and Unused Land Consolidation Engineering, The Ministry of Natural Resources, Xi’an 710075, China
3
Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi′an Jiaotong University, Xi’an 710049, China
4
Department of Chemistry, College of Resource and Environment, Baoshan University, Baoshan 678000, China
5
School of Basic Medicine, Shaanxi University of Chinese Medicine, XiXian New Area, Xianyang 712046, China
*
Authors to whom correspondence should be addressed.
Molecules 2022, 27(22), 7980; https://doi.org/10.3390/molecules27227980
Submission received: 11 October 2022 / Revised: 15 November 2022 / Accepted: 15 November 2022 / Published: 17 November 2022
(This article belongs to the Special Issue Wastewater Treatments Based on Adsorption, Catalysis, Biodegradation, and Beyond)
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Abstract

Activated carbon can be applied to the treatment of wastewater loading with different types of pollutants. In this paper, a kind of activated carbon in granular form (GAC) was utilized to eliminate antibiotics from an aqueous solution, in which Tetracycline (TC), Thiamphenicol (THI), and Sulfamethoxazole (SMZ) were selected as the testing pollutants. The specific surface area, total pore volume, and micropore volume of GAC were 1059.011 m2/g, 0.625 cm3/g, and 0.488 cm3/g, respectively. The sorption capacity of GAC towards TC, THI, and SMZ was evaluated based on the adsorption kinetics and isotherm. It was found that the pseudo-second-order kinetic model described the sorption of TC, THI, and SMZ on GAC better than the pseudo-first-order kinetic model. According to the Langmuir isotherm model, the maximum adsorption capacity of GAC towards TC, THI, and SMZ was calculated to be 17.02, 30.40, and 26.77 mg/g, respectively. Thermodynamic parameters of ΔG0, ΔS0, and ΔH0 were obtained, indicating that all the sorptions were spontaneous and exothermic in nature. These results provided a knowledge base on using activated carbon to remove TC, THI, and SMZ from water.
Keywords: adsorption; antibiotics; activated carbon; water treatment adsorption; antibiotics; activated carbon; water treatment

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MDPI and ACS Style

Li, R.; Sun, W.; Xia, L.; U, Z.; Sun, X.; Wang, Z.; Wang, Y.; Deng, X. Adsorption of Toxic Tetracycline, Thiamphenicol and Sulfamethoxazole by a Granular Activated Carbon (GAC) under Different Conditions. Molecules 2022, 27, 7980. https://doi.org/10.3390/molecules27227980

AMA Style

Li R, Sun W, Xia L, U Z, Sun X, Wang Z, Wang Y, Deng X. Adsorption of Toxic Tetracycline, Thiamphenicol and Sulfamethoxazole by a Granular Activated Carbon (GAC) under Different Conditions. Molecules. 2022; 27(22):7980. https://doi.org/10.3390/molecules27227980

Chicago/Turabian Style

Li, Risheng, Wen Sun, Longfei Xia, Zia U, Xubo Sun, Zhao Wang, Yujie Wang, and Xu Deng. 2022. "Adsorption of Toxic Tetracycline, Thiamphenicol and Sulfamethoxazole by a Granular Activated Carbon (GAC) under Different Conditions" Molecules 27, no. 22: 7980. https://doi.org/10.3390/molecules27227980

APA Style

Li, R., Sun, W., Xia, L., U, Z., Sun, X., Wang, Z., Wang, Y., & Deng, X. (2022). Adsorption of Toxic Tetracycline, Thiamphenicol and Sulfamethoxazole by a Granular Activated Carbon (GAC) under Different Conditions. Molecules, 27(22), 7980. https://doi.org/10.3390/molecules27227980

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