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Direct synthesis of sodalite from Indonesian kaolin for adsorption of Pb2+ solution, kinetics, and isotherm approach

Tri Wahyuni, Tri Wahyuni and Prasetyoko, Didik and Suprapto, Suprapto and Qoniah, Imroatul and Bahruji, Hasliza and Anwarud Dawam, Ahmad and Triwahyono, Sugeng and Abdul Jalil, Aishah (2019) Direct synthesis of sodalite from Indonesian kaolin for adsorption of Pb2+ solution, kinetics, and isotherm approach. Bulletin of Chemical Reaction Engineering & Catalysis, 14 (3). pp. 502-512. ISSN 1978-2993

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Official URL: http://dx.doi.org/10.9767/bcrec.14.3.2939.502-512

Abstract

Indonesian kaolin was used as precursor for synthesis of sodalite. Synthesis parameters were optimized by varying the Si/Al ratios, stirring and aging conditions, and water composition. X-ray diffraction (XRD), Fourier Transform Infra Red (FTIR), Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX), and Particle Size Analyzer (PSA) were used to characterize sodalite. The potential of sodalite as adsorbent for heavy metal Pb2+ ions removal from waste water was investigated in this work. The uptake adsorption capacities of sodalite was 90-100 mg/g from synthesized sodalite crystallized for 24 and 48 hours, and commercial silica. The kinetic of Pb2+ adsorption was a pseudo second order reaction and the adsorption coefficients was followed Langmuir adsorption isotherm.

Item Type:Article
Uncontrolled Keywords:Isotherm, Kaolin
Subjects:Q Science > QD Chemistry
Divisions:Science
ID Code:89075
Deposited By: Widya Wahid
Deposited On:26 Jan 2021 08:44
Last Modified:26 Jan 2021 08:44

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