%0 Journal Article
%A Gul Zaman, H.
%A Baloo, L.
%A Kutty, S.R.
%A Aziz, K.
%A Altaf, M.
%A Ashraf, A.
%A Aziz, F.
%D 2023
%F scholars:19530
%J Environmental Science and Pollution Research
%K adsorption; composite; lead; nanocomposite; organometallic compound; pollutant removal; polymer, chitosan; lead, adsorption; chemistry; infrared spectroscopy; kinetics; microwave radiation; pH; procedures; water management; water pollutant, Adsorption; Chitosan; Hydrogen-Ion Concentration; Kinetics; Lead; Microwaves; Spectroscopy, Fourier Transform Infrared; Water Pollutants, Chemical; Water Purification
%N 3
%P 6216-6233
%R 10.1007/s11356-022-22438-6
%T Insight into microwave-assisted synthesis of the chitosan-MOF composite: Pb(II) adsorption
%U https://khub.utp.edu.my/scholars/19530/
%V 30
%X Abstract: Heavy metal contamination has increased over the globe, causing significant environmental issues owing to direct and indirect releases into water bodies. As a result, metal removal from water entities must be addressed soon. Various adsorbents such as MOFs and chitosan have demonstrated promising results in water treatment. The present study prepared a composite material (chitosan-UiO-66-glycidyl methacrylate MOF) by a microwave-assisted method. The structure and morphology of the chitosan-MOF composite were studied using FE-SEM, EDX, XRD, BET, FT-IR, and TGA techniques. In addition, the adsorption of Pb(II) from aqueous solution onto the chitosan-MOF composite was analyzed in a batch study concerning pH, contact time, initial metal ion concentration, and adsorbent dosage. The composite has a large surface area of 867 m2/g with a total pore volume of 0.51 cm3/g and thermal stability of up to 400 �C. Following an analysis of the adsorption isotherms, kinetics, and thermodynamics, the Langmuir model showed an excellent fit with the adsorption data (R2 = 0.99) and chi-squared (X2 = 3.609). The adsorption process was a spontaneous exothermic reaction and the pseudo-second-order rate equation fitted the kinetic profile well. Moreover, the composite is recyclable, retaining 83.45 of its removal effectiveness after 5 consecutive cycles, demonstrating it as a sustainable adsorbent for metal recovery. This study introduces a novel synthesized composite with enhanced recyclability and a higher potential for eliminating pollutants from industrial wastewater. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.
%Z cited By 16