TY - JOUR
T1 - Self-cleaning Mn-Zn ferrite/biochar adsorbents for effective removal of tetracycline
AU - Hu, Zhong-Ting
AU - Wang, Xiao-Fang
AU - Xiang, Shuo
AU - Ding, Yin
AU - Zhao, Dong-Yang
AU - Hu, Mian
AU - Pan, Zhiyan
AU - Varjani, Sunita
AU - Wong, Jonathan Woon-Chung
AU - Zhao, Jun
PY - 2022/10/20
Y1 - 2022/10/20
N2 - A renewable tri-metallic spinel decorated biochar adsorbent (MZF-BC) was fabricated by a facile hydrothermal method and to remove tetracycline. The physicochemical properties of MZF-BC were well studied. MZF-BC with a hybrid pore structure of mesopores (~7.6 nm) and macropores (~50 nm) has the maximum tetracycline adsorption capacity reaching 142.4 mg g−1. Through the study of adsorption kinetics, isotherms and key influencing factors, it was found that MZF-BC adsorption on tetracycline was primarily multi-layer effect with the initial adsorption behavior of pore filling associated with hydrogen bonding and π-π stacking. Furthermore, the MZF-BC performs excellent regeneration ability by driving Fenton-like catalysis as the self-cleaning process in the liquid phase. This study contributes to a new insight into the in-situ regeneration of biochar-based adsorbents after adsorbing organic pollutants in pharmaceutical wastewater treatment. © 2022 Elsevier B.V.
AB - A renewable tri-metallic spinel decorated biochar adsorbent (MZF-BC) was fabricated by a facile hydrothermal method and to remove tetracycline. The physicochemical properties of MZF-BC were well studied. MZF-BC with a hybrid pore structure of mesopores (~7.6 nm) and macropores (~50 nm) has the maximum tetracycline adsorption capacity reaching 142.4 mg g−1. Through the study of adsorption kinetics, isotherms and key influencing factors, it was found that MZF-BC adsorption on tetracycline was primarily multi-layer effect with the initial adsorption behavior of pore filling associated with hydrogen bonding and π-π stacking. Furthermore, the MZF-BC performs excellent regeneration ability by driving Fenton-like catalysis as the self-cleaning process in the liquid phase. This study contributes to a new insight into the in-situ regeneration of biochar-based adsorbents after adsorbing organic pollutants in pharmaceutical wastewater treatment. © 2022 Elsevier B.V.
KW - Biochar regeneration
KW - In-situ
KW - Pharmaceutical wastewater
KW - Spinel
UR - http://www.scopus.com/inward/record.url?scp=85134348161&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85134348161&origin=recordpage
U2 - 10.1016/j.scitotenv.2022.157202
DO - 10.1016/j.scitotenv.2022.157202
M3 - RGC 21 - Publication in refereed journal
C2 - 35810898
SN - 0048-9697
VL - 844
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 157202
ER -
