Application of modified amino- based biowaste materials for CO2 capture: Efficiency and mechanism
บทความในวารสาร
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Nueangkaew, S.; Treesubsuntorn, C.; Tachapermpon, Y.
ผู้เผยแพร่: Elsevier
ปีที่เผยแพร่ (ค.ศ.): 2026
วารสาร: Journal of Environmental Chemical Engineering (2213-2929)
Volume number: 14
Issue number: 1
หน้าแรก: 120833
นอก: 2213-2929
eISSN: 2213-3437
ภาษา: English-Great Britain (EN-GB)
บทคัดย่อ
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.
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