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
Publication Title
Journal of Environmental Chemical Engineering
Divisions
ocean
Funders
Universiti Malaya (Grant No. RP 19A-13AET, RP008C-14SUS, RU 0030-2017)
Volume
8
Issue
4
Publisher
Elsevier Sci Ltd
Publisher Location
THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND