Application of modified amino- based biowaste materials for CO2 capture: Efficiency and mechanism
Journal article
Authors/Editors
Strategic Research Themes
Publication Details
Author list: Nueangkaew, S.; Treesubsuntorn, C.; Tachapermpon, Y.
Publisher: Elsevier
Publication year: 2026
Journal: Journal of Environmental Chemical Engineering (2213-2929)
Volume number: 14
Issue number: 1
Start page: 120833
ISSN: 2213-2929
eISSN: 2213-3437
Languages: English-Great Britain (EN-GB)
Abstract
The continuous increase in carbon dioxide (CO₂) emissions has significantly contributed to increased atmospheric CO₂ concentrations, necessitating the development of CO₂ capture technologies. Several studies have applied biowaste and amino-based materials as adsorbents for CO₂. However, these materials generally have limited efficiency. Modified material by the alkaline hydrolysis method may break down protein bonds and make amino groups more accessible. Therefore, this research investigated the feasibility of using modified biowaste materials, including chicken feathers, pig nails, and soybean residue, as sources of amino acids for CO₂ capture. The chicken feathers exhibited the highest adsorption capacity (33.17 ± 2.35 mg/g), followed by pig nail (24.30 ± 1.11 mg/g) and soybean residue (14.94 ± 4.29 mg/g). After alkaline hydrolysis, chicken feathers showed a significantly increased CO₂ adsorption capacity (159.72 ± 4.52 mg/g). The Fourier transform infrared spectroscopy (FTIR) confirmed the presence of amino and carbonyl groups in the adsorbent, while scanning electron microscopy (SEM) and Barrett–Joyner–Halenda (BJH) analyses revealed a rougher and more porous surface of hydrolyzed chicken feathers. X-ray diffraction (XRD) analysis indicated increased crystallinity after CO₂ adsorption. These results demonstrate that the alkaline hydrolysis process enhances the structural and chemical characteristics of biowaste materials, improving their adsorption capacity. Under humid conditions, the addition of water further enhanced the adsorption capacity, reaching 308.79 ± 4.44 mg/g. This condition was utilized in subsequent flow system studies to evaluate the continuous CO₂ adsorption capacity at levels comparable to those of practical use. These experiments successfully developed biowaste materials into efficient, low-cost adsorbents with potential for sustainable CO₂ reduction processes. © 2025 Elsevier Ltd.
Keywords
No matching items found.
Contact Information