Excellent performance of copper based metal organic framework in adsorptive removal of toxic sulfonamide antibiotics from wastewater
Date
2016
Authors
Azhar, M.
Abid, H.
Sun, H.
Periasamy, V.
Tadé, M.
Wang, S.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of Colloid and Interface Science, 2016; 478:344-352
Statement of Responsibility
Muhammad Rizwan Azhar, Hussein Rasool Abid, Hongqi Sun, Vijay Periasamy, Moses O. Tadé, Shaobin Wang
Conference Name
Abstract
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 15min 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 384mg/g at 298K which is the highest compared to most of the materials for the antibiotics. The high adsorption capacity is attributed mainly to π-π stacking, hydrogen bonding and electrostatic interactions.
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Dissertation Note
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Available online 11 June 2016
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© 2016 Elsevier Inc. All rights reserved.