Excellent performance of copper based metal organic framework in adsorptive removal of toxic sulfonamide antibiotics from wastewater
MetadataShow full item record
The increasing concerns on toxicity of sulfonamide antibiotics in water require a prompt action to establish efficient wastewater treatment processes for their removal. In this study, adsorptive removal of a model sulfonamide antibiotic, sulfachloropyridazine (SCP), from wastewater is presented for the first time using a metal organic framework (MOF). A high surface area and thermally stable MOF, HKUST-1, was synthesized by a facile method. Batch adsorption studies were systematically carried out using HKUST-1. The high surface area and unsaturated metal sites resulted in a significant adsorption capacity with faster kinetics. Most of the SCP was removed in 15 min and the kinetic data were best fitted with the pseudo second order model. Moreover, isothermal data were best fitted with the Langmuir model. The thermodynamic results showed that the adsorption is a spontaneous and endothermic process. The adsorption capacity of HKUST-1 is 384 mg/g at 298 K which is the highest compared to most of the materials for the antibiotics. The high adsorption capacity is attributed mainly to p-p stacking, hydrogen bonding and electrostatic interactions.
Showing items related by title, author, creator and subject.
Gao, J.; Chen, J.; Li, X.; Wang, M.; Zhang, X.; Tan, F.; Xu, S.; Liu, Jian (2015)Antibiotics, which are hardly removed from polluted water by conventional water-treatment technologies, adsorption has been deemed as one of the efficient and promising method to resolve the problems of antibiotics ...
Azhar, M.; Abid, H.; Periasamy, V.; Sun, Hongqi; Tade, Moses; Wang, Shaobin (2017)© 2017 Elsevier Inc.Adsorptive removal of a toxic sulfonamide antibiotic, sulfachloropyradazine (SCP), from aqueous solution was studied on several metal organic frameworks, UiO-66 and ZIF-67, for the first time. UiO-66 ...
Kang, J.; Zhou, L.; Duan, Xiaoguang; Sun, Hongqi; Wang, Shaobin (2018)Emerging pharmaceutical contaminants, for example antibiotics, have raised severe challenges to remediation technologies due to their resistance to biodegradation and the ineffectiveness in adsorptive removal or membrane ...