TY - JOUR
T1 - Highly efficient removal of thallium in wastewater by MnFe2O4-biochar composite
AU - Liu, Juan
AU - Ren, Shixing
AU - Cao, Jielong
AU - Tsang, Daniel C.W.
AU - Beiyuan, Jingzi
AU - Peng, Yutao
AU - Fang, Fa
AU - She, Jingye
AU - Yin, Meiling
AU - Shen, Nengping
AU - Wang, Jin
N1 - Funding Information:
The work was funded by the Natural Science Foundation of China (Nos. 41873015 , 41830753 , U1612442 , 41573008 and 41773011 ), the Guangzhou University’s 2017 training program for young top-notch personnel ( BJ201709 ), Scientific Research Projects in Colleges and Universities of Guangzhou Education Bureau, Guangzhou, China ( 201831803 ), and the 17th “Challenge Cup” Undergraduate Program (team leader: Jielong Cao).
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/1/5
Y1 - 2021/1/5
N2 - Thallium (Tl), is a highly toxic trace metal in the natural environment. Emerging Tl 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 m2/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.
AB - Thallium (Tl), is a highly toxic trace metal in the natural environment. Emerging Tl 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 m2/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.
KW - Engineered biochar
KW - Industrial wastewater treatment
KW - Iron/manganese coprecipitation
KW - Sustainable engineering
KW - Thallium remediation
UR - http://www.scopus.com/inward/record.url?scp=85087478578&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2020.123311
DO - 10.1016/j.jhazmat.2020.123311
M3 - Journal article
C2 - 32652417
AN - SCOPUS:85087478578
VL - 401
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
SN - 0304-3894
M1 - 123311
ER -