Characterization of amphoteric bentonite-loaded magnetic biochar and its adsorption properties for Cu²⁺ and tetracycline.

ABSTRACT: To realize simultaneous adsorption of heavy metal and antibiotic pollutants by a BC-based recyclable material, Fe₃O₄ magnetic biochar (MBC) was prepared by co-precipitation method. Then different ratios of dodecyl dimethyl betaine (BS-12)-modified bentonite (BS-B) were loaded on the surfaces of biochar (BC) and MBC to prepare BS-B-loaded BC and MBC composites, called BS-B/BC and BS-B/MBC, respectively. The physicochemical and structural properties of the composites were characterized by scanning electron microscopy, Fourier transform infrared spectrometry, thermogravimetric analysis, specific surface area (S_BET) analysis, and vibrating sample magnetometry, and the adsorption efficiencies of BS-B/BC and BS-B/MBC to Cu²⁺ and tetracycline (TC) were

SUBMITTER: Deng H 

PROVIDER: S-EPMC8896019 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature