Cobalt-impregnated biochar (Co-SCG) for heterogeneous activation of peroxymonosulfate for removal of tetracycline in water

Van-Truc Nguyen; Thanh-Binh Nguyen; Chiu-Wen Chen; Chang-Mao Hung; C P Huang; Cheng-Di Dong

doi:10.1016/j.biortech.2019.121954

Cobalt-impregnated biochar (Co-SCG) for heterogeneous activation of peroxymonosulfate for removal of tetracycline in water

Bioresour Technol. 2019 Nov:292:121954. doi: 10.1016/j.biortech.2019.121954. Epub 2019 Aug 5.

Authors

Van-Truc Nguyen¹, Thanh-Binh Nguyen², Chiu-Wen Chen², Chang-Mao Hung², C P Huang³, Cheng-Di Dong⁴

Affiliations

¹ Institute of Marine Science and Technology, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan.
² Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan.
³ Department of Civil and Environmental Engineering, University of Delaware, Newark 19716, DE, USA.
⁴ Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan. Electronic address: cddong@nkust.edu.tw.

PMID: 31404756
DOI: 10.1016/j.biortech.2019.121954

Abstract

Cobalt-impregnated spent coffee ground biochar (Co-SCG) was synthesized and applied for tetracycline (TC) removal from water. The results showed that Co-SCG biochar exhibited marked adsorption capacity and catalyst activity. The maximum adsorption capacity of Co-SCG biochar toward TC was 370.37 mg g^-1. TC was almost completely degraded in 25 min with a rate constant of 17.78 × 10^-2 min^-1 under the following optimal condition: TC concentration of 0.2 mM, PMS concentration of 0.6 mM, Co-SCG dosage of 100 mg L^-1, and pH of 7.0. Co-SCG was characterized for surface properties by SEM, TEM, HRTEM, and BET. The concentration of 16 PAHs in Co-SCG biochar was studied also. Results demonstrated that Co-SCG was an effective eco-friendly material for the removal of tetracycline from water.

Keywords: Biochar; Degradation; PAHs; Peroxymonosulfate; Tetracycline.

MeSH terms

Charcoal
Cobalt
Peroxides
Tetracycline
Water Pollutants, Chemical*
Water*

Substances

Peroxides
Water Pollutants, Chemical
biochar
Water
Charcoal
peroxymonosulfate
Cobalt
Tetracycline