Thallium (T1), is a highly toxic trace metal in the natural environment. Emerging TI pollution in waters has gradually become a global concern. However, limited removal technologies are available for Tl-containing wastewater. Herein, MnFe2O4-biochar composite (MFBC) was successfully fabricated via coprecipitation method as a novel and efficient adsorbent for treating Tl(I)-contaminated wastewater. It was found that the MFBC, with a specific surface area of 187.03 m(2)/g, exhibited high performance across a wide pH range of 4-11, with the superior Tl(I) removal capacity (170.55 mg/g) based on Langmuir model (pH 6.0, a dosage of 1 g/L). The removal mechanisms included physical and chemical adsorption, ion exchange, surface complexation, and oxidation. This investigation revealed that MFBC is a promising and environmentally friendly adsorbent with a low cost, large specific surface area, magnetic properties, and high efficiency for the removal of Tl(I) from wastewater.
| JOURNAL OF HAZARDOUS MATERIALS Volume: 401 Article Number: 12331 DOI: 10.1016/j.jhazmat.2020.12331 Published: JAN 5 2021 |
| Liu, Juan; Ren, Shixing; Cao, Jielong; Tsang, Daniel C. W.; Beiyuan, Jingzi; Peng, Yutao; Fang, Fa; She, Jingye; Yin, Meiling; Shen, Nengping; Wang, Jin |
-Guangzhou Univ, Innovat Ctr, Guangzhou 510006, Peoples R China.
-Guangzhou Univ, Inst Environm Res Greater Bay, Key Lab Waters Safety & Protect Pearl River Delta, Guangzhou 510006, Peoples R China.
-Guangzhou Univ, Sch Environm Sci & Engn, Guangdong Prov Key Lab Radionuclides Pollut Contr, Guangzhou 510006, Peoples R China.
|Author(s) from IGCAS || SHEN Nengping |
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