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Open AccessArticle
Enhanced Adsorption of Gaseous Naphthalene by Activated Carbon Fibers at Elevated Temperatures
by
Chiou-Liang Lin
Chiou-Liang Lin
Chun-Yi Huang
Chun-Yi Huang
Zhen-Shu Liu
Zhen-Shu Liu
Prof. Dr. Zhen-Shu Liu is a Professor and Chair of the Department of Safety, Health and Engineering [...]
Prof. Dr. Zhen-Shu Liu is a Professor and Chair of the Department of Safety, Health and Environmental Engineering at the Ming Chi University of Technology. She received a B.S. and a PhD. from the Department of Environmental Engineering, National Chung Hsing University, Taiwan, in 1998 and 2002, respectively. Her research interests include catalyst technology, air pollutant sampling, analysis and control, synthesis of adsorptive materials and catalysts, resources recovery, Ames test for environmental pollutants and food, and microplastics analysis.
1
Department of Civil and Environmental Engineering, National University of Kaohsiung, Kaohsiung 811726, Taiwan
2
Department of Safety, Health and Environmental Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
3
Center for Sustainability and Energy Technologies, Chang Gung University, Taoyuan 33302, Taiwan
4
Chronic Diseases and Health Promotion Research Center, Chang Gung University of Science and Technology, Chiayi 61363, Taiwan
5
Biochemical Technology R&D Center, Ming Chi University of Technology, New Taipei City 24301, Taiwan
*
Author to whom correspondence should be addressed.
Toxics 2024, 12(8), 537; https://doi.org/10.3390/toxics12080537 (registering DOI)
Submission received: 23 May 2024
/
Revised: 23 June 2024
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Accepted: 22 July 2024
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Published: 24 July 2024
Abstract
This study utilized activated carbon fibers (ACFs) as adsorbents to investigate the removal efficiency of naphthalene and toluene at elevated temperatures and their competitive adsorption behavior. Three types of ACFs, inlet concentrations of naphthalene (343, 457, and 572 mg·Nm−3), and toluene (2055, 2877, and 4110 mg·Nm−3) were investigated to determine the adsorption capacities of naphthalene and toluene. To study the reaction mechanisms of naphthalene and toluene on the ACFs, the BET, SEM, FTIR, and TGA methods were used to examine the physical and chemical characteristics of ACFs. Results showed ACF-A’s superior adsorption capacity for naphthalene that was attributed to its mesoporous structure and hydrophobicity. Adsorption equilibrium studies indicated multilayer adsorption behavior. Competitive adsorption experiments demonstrated the displacement of toluene by naphthalene on ACF-A, highlighting its higher selectivity for naphthalene. Functional group analysis revealed changes in ACF surfaces after naphthalene adsorption, suggesting π-π dispersion and electron donor–acceptor interactions. Overall, this study underscores the importance of pore structure and surface properties in designing ACFs for the efficient adsorption of high-boiling-point organic pollutants.
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MDPI and ACS Style
Lin, C.-L.; Huang, C.-Y.; Liu, Z.-S.
Enhanced Adsorption of Gaseous Naphthalene by Activated Carbon Fibers at Elevated Temperatures. Toxics 2024, 12, 537.
https://doi.org/10.3390/toxics12080537
AMA Style
Lin C-L, Huang C-Y, Liu Z-S.
Enhanced Adsorption of Gaseous Naphthalene by Activated Carbon Fibers at Elevated Temperatures. Toxics. 2024; 12(8):537.
https://doi.org/10.3390/toxics12080537
Chicago/Turabian Style
Lin, Chiou-Liang, Chun-Yi Huang, and Zhen-Shu Liu.
2024. "Enhanced Adsorption of Gaseous Naphthalene by Activated Carbon Fibers at Elevated Temperatures" Toxics 12, no. 8: 537.
https://doi.org/10.3390/toxics12080537
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