Advanced SearchSearch Tips
Photocatalysis of o-, m- and p-Xylene Using Element-Enhanced Visible-Light Driven Titanium Dioxide
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Photocatalysis of o-, m- and p-Xylene Using Element-Enhanced Visible-Light Driven Titanium Dioxide
Kim, Jong-Tae; Kim, Mo-Keun; Jo, Wan-Kuen;
  PDF(new window)
Enhancing with non-metallic elemental nitrogen(N) is one of several methods that have been proposed to modify the electronic properties of bulk titanium dioxide(), in order to make effective under visible-light irradiation. Accordingly, current study evaluated the feasibility of applying visible-light-induced enhanced with N element to cleanse aromatic compounds, focusing on xylene isomers at indoor air quality(IAQ) levels. The N-enhanced was prepared by applying two popular processes, and they were coated by applying two well-known methods. For three o-, m-, and p-xylene, the two coating methods exhibited different photocatalytic oxidation(PCO) efficiencies. Similarly, the two N-doping processes showed different PCO efficiencies. For all three stream flow rates(SFRs), the degradation efficiencies were similar between o-xylene and m,p-xylene. The degradation efficiencies of all target compounds increased as the SFR decreased. The degradation efficiencies determined via a PCO system with N-enhanced visible-light induced was somewhat lower than that with ultraviolet(UV)-light induced unmodified , which was reported by previous studies. Nevertheless, it is noteworthy that PCO efficiencies increased up to 94% for o-xylene and 97% for the m,p-xylene under lower SFR(0.5 L ). Consequently, it is suggested that with appropriate SFR conditions, the visible-light-assisted photocatalytic systems could also become important tools for improving IAQ.
Xylene photocatalysis;N-Enhanced ;Degradation efficiency;Doping process;Coating method;
 Cited by
Buzcu B., Fraser M. P., 2006, Source identification and apportionment of volatile organic compounds in Houston, Tx. Atmos. Environ., 40, 2385-2400 crossref(new window)

Neumark Y. D., Delva J., Anthony J. C., 1998, The epidemiology of adolescent inhalant drug involvement, Arch. Pediatr. Adolescent Med., 152, 781-786

Revilla A. S., Pestana C. R., Pardo-Andreu G. L., Santos A. C., Uyemura S. A., Gonzales M. E., Curti C., 2007, Potential toxicity of toluene and xylene evoked by mitochondrial uncoupling, Toxicol. in Vitro, 21, 782-788 crossref(new window)

Bakand S., Winder C., Khalil C., Hayes A., 2005, A novel in vitro exposure technique for toxicity testing of selected volatile organic compounds, J. Environ. Monit., 8, 100-105 crossref(new window)

Costa C., De Pasquale R., Silvari V., Barbaro M., Catania S., 2006, In vitro evaluation of oxidative damage from organic solvent vapours on human skin, Toxicol. in Vitro., 20, 324-331 crossref(new window)

Stevens L., Lanning J. A., Anderson L. G., Jacoby W. A., Chornet N., 1998, Investigation of the photocatalytic oxidation of low-level carbonyl compounds, J. Air Waste Manage. Assoc., 48, 979-984 crossref(new window)

Zhao J., Yang X., 2003, Photocatalytic oxidation for indoor air purification: a literature review, Build. Environ., 38, 645-654 crossref(new window)

Chen W., Zhang J. S., 2008, UV-PCO device for indoor VOCs removal: Investigation on multiple compounds effect, Build. Environ., 43, 246-252 crossref(new window)

Chatterjee D., Dasgupta S., 2005, Visible light induced photocatalytic degradation of organic pollutants, J. Photoch. Photobio. C, 6, 186-205 crossref(new window)

Ihara T., Miyoshi M., Ando M., Sugihara S., Iriyama Y., 2001, Preparation of visible-light-active $TiO_2$ catalyst by RF plasma treatment, J. Mater. Sci., 36, 4201-4207 crossref(new window)

Hirano K., Suzuki E., Ishikawa A., Moroi T., Shiroishi H., Kaneko M., 2000, Sensitization of $TiO_2$ particles by dyes to achieve H2 evolution by visible light, J. Photoch. Photobio. A, 136, 157-161 crossref(new window)

Li X. Z., Li F. B., 2001, Study of $Au/Au^{3+}-TiO_2$ photocatalysts toward visible photooxidation for water and wastewater treatment, Environ. Sci. Technol., 35, 2381-2387 crossref(new window)

Asahi R., Morikawa T., Ohwaki T., Aoki K., Taga Y., 2001, Visible-light photocatalysis in nitrogenenhanced titanium oxides, Science, 293, 269-271 crossref(new window)

Ohno T., Akiyoshi M., Umebayashi T., Asai K., Mitsui T., Matsumura M., 2004, Preparation of S-enhanced $TiO_2$ photocatalysts and their photocatalytic activities under visible light, Appl. Catal. 265, 115-121 crossref(new window)

Sakthivel S., Kisch H., 2003, Photocatalytic and photoelectrochemical properties of nitrogen-enhanced titanium dioxide, Chemphyschem, 4, 487-490 crossref(new window)

Li D., Haneda H., Hishita S., Ohashi N., 2005, Visible-light-driven nitrogen-enhanced $TiO_2$ photocatalysts: effect of nitrogen precursors on their photocatalysis for decomposition of gas-phase organic pollutants, Mat. Sci. Eng. B, 117, 67-75 crossref(new window)

Irokawa Y., Morikawa T., Aoki K., Kosaka S., Ohwaki T., Taga Y., 2006, Photodegradation of toluene over $TiO_2-xN_x$ under visible light irradiation, Phys. Chem. Chem. Phys., 8, 1116-1121 crossref(new window)

Bacsa R., Kiwi J., Ohno T., Albers P., Nadtochenko V., 2005, Preparation, testing and characterization of enhanced $TiO_2$ active in the peroxidation of biomolecules under visible light, J. Phys. Chem., 109, 5994-6003 crossref(new window)

Nosaka Y., Matsushita M., Nishino J., Nosaka A. Y., 2005, Nitrogen-enhanced titanium dioxide photocatalysts for visible response prepared by using organic compounds, Sci. Technol. Adv. Mat., 6, 143-148 crossref(new window)

Zxagas A. P., Androulaki E., Hiskia A, Falaras P., 1999, Preparation, fractal, surface morphology and photocatalytic properties of $TiO_2$ films, Thin Solid Films, 357, 173-178 crossref(new window)

Nazeeruddin M. K., Kay A., Rodicio I., Humphry- Baker R., Müller E., Liska P., Vlachopoulos N., Gratzel M., 1993, Conversion of light to electricity by cis-X2bis(2,2'-bipyridyl-4,4'-dicarboxylate) ruthenium (II) charge-transfer sensitizers (X = $Cl^-$, $Br^-$, $I^-$, $CN^-$, and $SCN^-$) on nanocrystalline $TiO_2$ electrodes, J. Am. Chem. Soc., 115, 6382-6390 crossref(new window)

Van Gerven T., Mul G., Moulijn J., Stankiewicz A., 2007, A review of intensification of photocatalytic processes, Chem. Eng. Proc., 46, 781-789

Yang R., Zhang Y., Xu Q., Mo J., 2007, A mass transfer method for measuring the reaction coefficients of a photocatalyst, Atmos. Environ., 41, 1221-1229 crossref(new window)

Obee T. N., Brown R. T., 1995, $TiO_2$ photocatalysis for indoor air applications: effects of humidity and trace contaminant levels on the oxidation rates of formaldehyde, toluene, and 1,3-butadiene, Environ. Sci. Technol., 29, 1223-1231 crossref(new window)

Jo W. K., Park K. H., 2004, Heterogeneous photocatalysis of aromatic and chlorinated volatile organic compounds(VOCs) for non-occupational indoor air application, Chemosphere, 57, 555-565 crossref(new window)

Miyauchi M., Ikezawa A., Tobimatsu H., Irie H., Hashimoto K., 2004, Zeta potential and photocatalytic activity of nitrogen enhanced $TiO_2$ thin films, Phys. Chem. Chem. Phys., 6, 865-870 crossref(new window)