Abstract
Although several visible light-emitting diode (LED)-irradiated photocatalysts exhibited low photocatalytic decomposition efficiencies for toxic gaseous pollutants, activated carbon fiber (ACF) has rarely been used as a backup adsorption device for photocatalytic systems. Accordingly, this study accessed the applicability of a supplemental ACF following a visible LED-irradiated S-TiO2 unit for the control of low-degraded benzene and toluene. The characteristics of the S-TiO2 and ACF were determined using an XRD, a UV-Vis-NIR, and an FTIR spectrophotometer. For an LED/S-TiO2 system, low degradation efficiencies regarding benzene and toluene (close to zero-7.2% and 7.1–64.4%, respectively) were found. In contrast, the mean degradation efficiencies of both compounds obtained from the photocatalytic-ACF hybrid system were all close to 100%. In addition, no peaks were observed in the gas chromatogram of air samples taken at the outlet of the hybrid system, whereas several trace peaks were observed in the standalone photocatalytic reactor results. The breakthrough of the ACF occurred at approximately 14 and 28 hours for benzene and toluene, respectively, and saturation occurred at approximately 28 and 42 hours, respectively. Consequently, this study newly found that the supplemental activated carbon fiber following a visible LED-irradiated S-TiO2 unit could be applied effectively for the control of low-degraded toxic benzene and toluene.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
Y. S. You, K.-H. Chung, Y. M. Kim, J.-H. Kim and G. Seo, Korean J. Chem. Eng., 20, 58 (2003).
L. Laokiat, P. Khemthong, N. Grisdanurak, P. Sreearunothai, W. Pattanasiriwisawa and W. Klysubun, Korean J. Chem. Eng., 29, 377 (2012).
A. Bernabeu, R. F. Vercher, L. Santos-Juanes, P. J. Simón, C. Lardín, M. A. Martínez, J. A. Vicente, R. González, C. Llosá, A. Arques and A.M. Amat, Catal. Today, 161, 235 (2011).
T. Van Gerven, G. Mul, J. Moulijn and A. Stankiewicz, Chem. Eng. Process., 46, 781 (2007).
S. Malato, P. Fernández-Ibáñez, M. I. Maldonado, J. Blanco and W. Gernjak, Catal. Today, 147, 1 (2009).
T. Matsumoto, N. Iyi, Y. Kaneko, K. Kitamura, S. Ishihara, Y. Takasu and Y. Murakami, Catal. Today, 120, 226 (2007).
J. L. Shie, C. H. Lee, C. S. Chiou, C.T. Chang, C.C. Chang and C.Y. Chang, J. Hazard. Mater., 155, 164 (2008).
J. P. Ghosh, R. Sui, C.H. Langford, G. Achari and C. P. Berlinguette, Water Res., 43, 4499 (2009).
W. K. Jo, S. S. Eun and S. H. Shin, Photochem. Photobiol., 87, 1016 (2011).
Wikipedia, Light-emitting diode (2011). Accessed at http://en.wikipedia.org/wiki/Light-emitting_diode.
F. Haghighat, C.-S. Lee, B. Pant, G. Bolourani, N. Lakdawala and A. Bastani, Atmos. Environ., 42, 8176 (2008).
D. Das, V. Gaur and N. Verma, Carbon, 42, 2949 (2004).
M. A. Sidheswaran, H. Destaillats, D. P. Sullivan, S. Cohn and W. J. Fisk, Build. Environ., 47, 357 (2012).
T. Ohno, M. Akiyoshi, T. Umebayashi, K. Asaim, T. Mitsui and M. Matsumura, Appl. Catal. A, 265, 115 (2004).
C. Han, M. Pelaez, V. Likodimos, A. G. Kontos, P. Falaras, K. O’Shea and D. D. Dionysiou, Appl. Catal. B, 107, 77 (2011).
G. Yang, Z. Yan and T. Xiao, Appl. Surf. Sci., 258, 4016 (2012).
T. Ohura, T. Amagai, X. Shen, S. Li, P. Zhang and L. Zhu, Atmos. Environ., 43, 6352 (2009).
OEHHA (Office of Environmental Health Hazard Assessment), Proposition 65 Status Report Safe Harbor Levels: No Significant Risk Levels for Carcinogens and Maximum Allowable Dose Levels for Chemicals Causing Reproductive Toxicity, California Environmental Protection Agency, OEHHA, Sacramento, CA (2003). Accessed at http://www.oehha.ca.gov/prop65/pdf/june2003StatusReport.pdf.
A.P. Xagas, E. Androulaki, A. Hiskia and P. Falaras, Thin Solid Films 357, 173 (1999)
L. Szatmáry, S. Bakardjieva, J. Šubrt, P. Bezdi ka, J. Jirkovský, Z. Bastl, V. Brezová and M. Korenko, Catal. Today, 161, 23 (2011).
H. Znadand and Y. Kawase, J. Mol. Catal. A, 314, 55 (2009).
S. Yao, J. Li and Z. Shi, Particuology, 8, 272 (2010).
E.M. Rockafellow, L. K. Stewart and W. S. Jenks, Appl. Catal. B, 91, 554 (2009).
M. Ksibi, S. Rossignol, J.-M. Tatibouët and C. Trapalis, Mater. Lett., 62, 4204 (2008).
R. Bacsa, J. Kiwi, T. Ohno, P. Albers and V. Nadtochenko, J. Phys. Chem. B, 109, 5994 (2005).
S. Liu and X. Chen, J. Hazard. Mater., 152, 48 (2008).
X. Wang, J.C. Yu, P. Liu, X. Wang, W. Su and X. Fu, J. Photochem. Photobiol. A, 179, 339 (2006).
IARC (International Agency for Research on Cancer), Monographs on the evaluation of the carcinogenic risks of chemicals to humans, WHO, Geneva (2004).
A. S. Revilla, C.R. Pestana, G. L. Pardo-Andreu, A. C. Santos, S. A. Uyemura, M. E. Gonzales and C. Curti, Toxicol. Vitro, 21, 782 (2007).
IRIS, IRIS database for risk assessment, US Environmental Protection Agency, (2005). Acessed at: http://www.epa.gov/iris/.
M. Mohseni, Chemosphere, 59, 335 (2005).
X. Ye, D. Chen, J. Gossage and K. Li, J. Photochem. Photobiol. A, 183, 35 (2006).
P. Pichat, Appl. Catal. B, 99, 428 (2010).
T. Van Gerven, G. Mul, J. Moulijn and A. Stankiewicz, Chem. Eng. Prog., 46, 781 (2007).
A. Bouzaza, C. Vallet and A. Laplanche, J. Photochem. Photobiol. A, 177, 212 (2006).
W. K. Jo and J. T. Kim, J. Chem. Technol. Biotechnol., 85, 485 (2009).
J. Zhao and X. Yang, Build. Environ., 38, 645 (2003).
V. Águeda, B.D. Crittenden, J.A. Delgado and S.R. Tennison, Sep. Purif. Technol., 78, 54 (2011).
A. A. M. Daifullah and B. S. Girgis, Colloids Surf. A, 214, 181 (2003).
M. P. Cal, M. J. Rood and S.M. Larson, Gas Sep. Purif., 10, 117 (1996).
M. Yao, Q. Zhang, D.W. Hand, D. L. Perram and R. Taylor, J. Air Waste Manage. Assoc., 59, 31 (2009).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Jo, WK. Adsorption backup following light-emitting diode-irradiated photocatalytic unit for control of low-degraded toxic gaseous compounds. Korean J. Chem. Eng. 30, 658–663 (2013). https://doi.org/10.1007/s11814-012-0167-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-012-0167-0