Amine functionalized magnetic nano-composite materials for the removal of selected endocrine disrupting compounds and its mechanism study
Document Type
Article
Publication Date
8-1-2020
Abstract
A novel adsorbent successfully synthesized using recyclable silica, nano magnetite and N1-(3 trimethoxisilylpropyl) diethylenetriamine (TRIS) denoted as MNCMT. Three endocrine disrupting compounds (EDCs) such as bisphenol A (BPA), ibuprofen (IBP) and clorofibric acid (CFA) were selected as model drugs for this study. The sorption capacities of EDCs by MNCMT were found to be 182.6 mg g(-1) for BPA, followed by CFA at 101.8 mg g(-1) and 72.6 mg g(-1) for IBP. The removal process matched with Langmuir isotherm and pseudo second order kinetic models with determination coefficient (R-2) above 0.99. The adsorbent was regenerated, recovered and reused for multiple cycles of adsorption. The physical-chemical properties and experimental data revealed that the chemical sorption is more dominant than physical sorption. Hydrogen bonding, pi-pi and electrostatic attractions provide intrinsic information on the removal mechanism.
Keywords
Magnetic adsorbent, EDCs, TRIS coated, Isotherm, Kinetic, Mechanism
Divisions
ocean
Funders
Universiti Malaya (Grant No. RP 19A-13AET, RP008C-14SUS, RU 0030-2017)
Publication Title
Journal of Environmental Chemical Engineering
Volume
8
Issue
4
Publisher
Elsevier Sci Ltd
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND