Lead Adsorption by Fly Ash Geopolymer: Isotherm, Kinetic, and Thermodynamic Studies-Reference-Cited by-同舟云学术

Lead Adsorption by Fly Ash Geopolymer: Isotherm, Kinetic, and Thermodynamic Studies

Published:2023-10-09 Issue:2 Volume:47 Page:283-288
ISSN:0930-7516
Container-title:Chemical Engineering & Technology
language:en
Short-container-title:Chem Eng & Technol

Author:

Pujari Murali¹,P Rohinikumar²,Manyam Sudharshan Reddy³,Arya Adarsh Kumar⁴

Affiliation:

1. University of Petroleum and Energy Studies Department of Chemical Engineering Dehradun Uttarakhand India

2. R.V.R. & J.C. College of Engineering Department of Chemical Engineering Guntur Andhra Pradesh India

3. Piramal Pharma Solutions Technical Service Department Zaheerabad, Sangareddy Telangana India

4. Harcourt Butler Technical University Department of Chemical Engineering Kanpur India

Abstract

AbstractThe effectiveness of low‐cost fly ash geopolymer (FAGP) adsorbents synthesized from biomass fly ash in lead removal from aqueous solution was studied. The synthesized FAGP was characterized by the Brunauer‐Emmett‐Teller method and energy dispersive spectroscopy. The adsorption experiments were performed in batch mode under various conditions, and the maximum removal efficiency and uptake were found at an optimum time of 120 min and pH 5. Adsorption isotherm studies confirmed that lead removal is best fitted by both Langmuir and Freundlich isotherms. A kinetic analysis showed that pseudo‐second‐order kinetics governs lead adsorption. Lead adsorption was determined to be an endothermic, spontaneous process through thermodynamic analysis.

Publisher

Wiley

Subject

Industrial and Manufacturing Engineering,General Chemical Engineering,General Chemistry

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1002/ceat.202300259

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