TY - JOUR
T1 - Fabrication of sustainable manganese ferrite modified biochar from vinasse for enhanced adsorption of fluoroquinolone antibiotics
T2 - Effects and mechanisms
AU - Xiang, Yujia
AU - Yang, Xiao
AU - Xu, Zhangyi
AU - Hu, Wenyong
AU - Zhou, Yaoyu
AU - Wan, Zhonghao
AU - Yang, Yuhui
AU - Wei, Yuyi
AU - Yang, Jian
AU - Tsang, Daniel C.W.
PY - 2020/3/20
Y1 - 2020/3/20
N2 - An effective adsorbent towards fluoroquinolone antibiotics was synthesized via a facile two-step approach, the co-precipitation of Fe, Mn with vinasse wastes and then pyrolysis under controlled conditions which denoted as FMB. Its adsorption behavior was examined based on a batch adsorption experiment of fluoroquinolone antibiotics pefloxacin (PEF) and ciprofloxacin (CIP). Experimental factors, such as pH, adsorbent dose, ionic strength, contact time and temperature have done a great deal to influence the adsorption of PEF and CIP. The FMB demonstrated excellent performance in reusability tests towards to both PEF and CIP, which showed that the recycling efficiency of PEF and CIP could remain ~55% and ~80% after five recycle cycles, respectively. The dominated adsorption mechanisms included pore filling effect, π-π stacking interaction, π-π EDA, hydrogen bonding and hydrophobicity. Overall, this work presented FMB was recognized as an effective, environmental-friendly and magnetically separable adsorbent for alleviating fluoroquinolone antibiotics contamination from water.
AB - An effective adsorbent towards fluoroquinolone antibiotics was synthesized via a facile two-step approach, the co-precipitation of Fe, Mn with vinasse wastes and then pyrolysis under controlled conditions which denoted as FMB. Its adsorption behavior was examined based on a batch adsorption experiment of fluoroquinolone antibiotics pefloxacin (PEF) and ciprofloxacin (CIP). Experimental factors, such as pH, adsorbent dose, ionic strength, contact time and temperature have done a great deal to influence the adsorption of PEF and CIP. The FMB demonstrated excellent performance in reusability tests towards to both PEF and CIP, which showed that the recycling efficiency of PEF and CIP could remain ~55% and ~80% after five recycle cycles, respectively. The dominated adsorption mechanisms included pore filling effect, π-π stacking interaction, π-π EDA, hydrogen bonding and hydrophobicity. Overall, this work presented FMB was recognized as an effective, environmental-friendly and magnetically separable adsorbent for alleviating fluoroquinolone antibiotics contamination from water.
KW - Adsorption mechanism
KW - Biochar modification
KW - Fluoroquinolone antibiotics
KW - Waste management
KW - Wastewater decontamination
UR - http://www.scopus.com/inward/record.url?scp=85076858423&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2019.136079
DO - 10.1016/j.scitotenv.2019.136079
M3 - Journal article
C2 - 31884293
AN - SCOPUS:85076858423
SN - 0048-9697
VL - 709
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 136079
ER -