Photocatalytic oxidation of gaseous benzene, toluene and xylene under UV and visible irradiation over Mn-doped TiO₂ nanoparticles(PDF)

Journal of Materiomics[ISSN:/CN:]

volumne:

Issue:

2019年01期

Page:

56-65

Research Field:

Publishing date:

2019-03-30

Info

Title:

Photocatalytic oxidation of gaseous benzene, toluene and xylene under UV and visible irradiation over Mn-doped TiO₂ nanoparticles

Highlights:

Vassilios Binas^b; c; Vassilis Stefanopoulos^a; George Kiriakidis^b; Panos Papagiannakopoulos^a

^aLaboratory of Photochemistry and Kinetics, Department of Chemistry, University of Crete, 71003, Heraklion, Crete, Greece;^bInstitute of Electronic Structure and Laser (IESL), FORTH, P.O. Box 1527, Vasilika Vouton, GR-71110, Heraklion, Greece;^cCrete Center for Quantum Complexity and Nanotechnology, Department of Physics, University of Crete, 71003, Heraklion, Greece

Keywords:

Mn-doped TiO₂; Visible; Light photocatalysis; Photodegradation of benzene; Toluene; Xylene; Indoors air pollution

PACS:

-

DOI:

https://doi.org/10.1016/j.jmat.2018.12.003

Abstract:

The photocatalytic oxidation of gaseous benzene, toluene and xylene (BTX) over un-doped, 0.1 and 1?wt% Mn-TiO₂ nanoparticles under ultraviolet and visible irradiation was studied in atmosphere of synthetic air or inert gas. The photocatalytic decomposition efficiency and the oxidation products were determined using a Static Photochemical Reactor coupled with FTIR spectroscopy. BTX underwent efficient decomposition over Mn-TiO₂ photocatalysts under UV irradiation, more with oxygen presence and less without oxygen. More important toluene and xylene went substantial decomposition over 0.1?mol% Mn-TiO₂ under visible irradiation with oxygen presence. The main final oxidation products in the UV photocatalysis of BTX were CO₂, CO and H₂O, with CO₂ and CO yields 4 and 2 respectively. The conversion percentage of benzene, toluene, and xylene to CO₂ were 63.6%, 56.4%, 51.8%, and to CO 29%, 26.5%, 23.2%, respectively. In the visible photocatalysis of toluene and xylene the yields of CO were insignificant. Formation of carbon containing deposits on TiO₂ surfaces was observed after extensive UV photocatalysis of toluene and xylene, and such by-products surface coverage may reduce the photocatalytic activity of TiO₂ samples. Some aspects of the photocatalytic mechanism were examined.

References:

[1] Wolkoff P. Indoor air pollutants in office environments: assessment of comfort, health, and performance. Int J Hyg Environ Health 2013;216:371e94.
[2] Herberger S, Ulmer H. Indoor air quality monitoring improving air quality perception. Clean - Soil, Air, Water 2012;40:578e85.
[3] Schell L, Burnitz K, Lathrop W. Pollution and human biology. Ann Hum Biol 2010;37:347e66.
[4] Mitha N, Levy J, Annesi-Maesano I, Lafortune J, Magnier A, Ibanez G. Indoor air quality and adult asthma. Rev Mal Respir 2013;30:374e413.
[5] Huh CH, Park KC, Jeong MY. Effect of environmentally friendly wallpaper and flooring material on indoor air quality and atopic dermatitis. J Am Acad Dermatol 2013;68:Ab75.
[6] Hoffmann MR, Martin ST, Choi W, Bahnemann DW. Environmental applications of semiconductor photocatalysis. Chem Rev 2005;95:69e96.
[7] Hernandez-Ram?rez A, Medina-Ram?rez I. Photocatalytic semiconductors. Springer; 2015.
[8] Nakata K, Fujishima A. TiO2 photocatalysis: design and applications. J Photochem Photobio C 2012;13:169e89.
[9] Jacoby W, Blake M, Fennell A, Boulter E, Vargo L, George M, Dolberg S. Heterogeneous photocatalysis for control of volatile organic compounds in indoor air. J Air Waste Manage 1996;46:891e8.
[10] Guo Q, Zhou C, Ma Z, Ren Z, Fan H, Yang X. Elementary photocatalytic chemistry on TiO2 surfaces. Chem Soc Rev 2016;45:3701e30.
[11] Thompson T, Yates J. Surface science studies of the photoactivation of TiO2– new photochemical processes. Chem Rev 2006;106:4428e53.
[12] Hashimoto K, Irie H, Fujishima A. TiO2 photocatalysis: a historical overview and future prospects. Jpn J Appl Phys 1 2005;44:8269e85.
[13] Diebold U. Structure and properties of TiO2 surfaces: a brief review. Appl Phys a-Mater 2003;76:681e7.
[14] Chen H, Nanayakkara C, Grassian H. Titanium dioxide photocatalysis in atmospheric chemistry. Chem Rev 2012;112:5919e48.
[15] Dhada I, Nagar PK, Sharma M. Photo-catalytic oxidation of individual and mixture of benzene, toluene and p-xylene. Int J Environ Sci Te 2016;13: 39e46.
[16] Ferrari-Lima AM, de Souza RP, Mendes SS, Marques RG, Gimenes ML, Fernandes- Machado NRC. Photodegradation of benzene, toluene and xylenes under visible light applying N-doped mixed TiO2 and ZnO catalysts. Catal Today 2015;241:40e6.
[17] Takeuchi M, Hidaka M, Anpo M. Efficient removal of toluene and benzene in gas phase by the TiO2/Y-zeolite hybrid photocatalyst. J Hazard Mater 2012;237e238:133e9.
[18] Papadimitriou V, Stefanopoulos V, Romanias M, Papagiannakopoulos P, Sambani K, Tudose V, Kiriakidis G. Determination of photo-catalytic activity of un-doped and Mn-doped TiO2 anatase powders on acetaldehyde under UV and visible light. Thin Solid Films 2011;520:1195e201.
[19] Binas V, Sambani K, Maggos T, Katsanaki A, Kiriakidis G. Synthesis and photocatalytic activity of Mn-doped TiO2 nanostructured powders under UV and visible light. Appl Catal B Environ 2012;113:79e86.
[20] Zhu Z, Li X, Zhao Q, Qu Z, Hou Y, Zhao L, Liu S, Chen G. FTIR study of the photocatalytic degradation of gaseous benzene over UV-irradiated TiO2 nanoballs synthesized by hydrothermal treatment in alkaline solution. Mater Res Bull 2010;45:1889e93.
[21] Einaga H, Teraoka Y. In situ diffuse reflectance FT-IR studies of TiO2 and Pt/ TiO2 in photo-oxidation of benzene and ethylene. Res Chem Intermed 2008;34:617e28.
[22] Ardizzone S, Bianchi C, Cappelletti G, Naldoni A, Pirola C. Photocatalytic degradation of toluene in the gas phase: relationship between surface species and catalyst features. Environ Sci Technol 2008;42:6671e6.
[23] Sleiman M, Ferronato C, Chovelon J. Photocatalytic oxidation of toluene at indoor air levels (ppbv): towards a better assessment of conversion, reaction intermediates and mineralization. Appl Catal B Environ 2009;86:159e65.
[24] Mo J, Zhang Y, Xu Q, Zhu Y, Lamson J, Zhao R. Determination and risk assessment of by-products resulting from photocatalytic oxidation of toluene. Appl Catal B Environ 2009;89:570e6.
[25] Zeng J, Liu X, Wang J, Lv H, Zhu T. Catalytic oxidation of benzene over MnOx/ TiO2 catalysts and the mechanism study. J Mol Catal Chem 2015;408:221e7.
[26] Einaga H, Futamura S, Ibusuki T. Heterogeneous photocatalytic oxidation of benzene, toluene, cyclohexene and cyclohexane in humidified air: comparison of decomposition behavior on photoirradiated TiO2 catalyst. Appl Catal B Environ 2002;38:215e25.
[27] Mendez-Roman R, Cardona-Martinez N. Relationship between the formation of surface species and catalyst deactivation during the gas-phase photocatalytic oxidation of toluene. Catal Today 1998;40:353e65.
[28] Blount M, Falconer J. Characterization of adsorbed species on TiO2 after photocatalytic oxidation of toluene. J Catal 2001;200:21e33.
[29] Maira A, Coronado J, Augugliaro V, Yeung K, Conesa J, Soria J. Fourier transform infrared study of the performance of nanostructured TiO2 particles for the photocatalytic oxidation of gaseous toluene. J Catal 2001;202:413e20.
[30] Blount M, Falconer J. Steady-state surfacea species during toluene photocatalysis. Appl Catal B Environ 2002;39:39e50.
[31] Marci G, Addamo M, Augugliaro V, Coluccia S, Garcia-Lopez E, Loddo V, Martra G, Palmisano L, Schiavello M. Photocatalytic oxidation of toluene on irradiated TiO2: comparison of degradation performance in humidified air, in water and in water containing a zwitterionic surfactant. J Photochem Photobiol Chem 2003;160:105e14.
[32] Marcì G, Augugliaro V, L opez-Mu~noz MJ, Martín C, Palmisano L, Rives V, Schiavello M, Tilley RJD, Venezia AM. Preparation characterization and photocatalytic activity of polycrystalline ZnO/TiO2 systems. 1. Surface and bulk characterization. J Phys Chem B 2001;105:1026e32.
[33] Pan S, Wang L. The atmospheric oxidation mechanism of o-xylene initiated by hydroxyl radicals. Acta Phys - Chim Sin 2015;31:2259e68.
[34] NIST Standard Reference Database Number 69. http://webbook.nist.gov/ chemistry/.
[35] Sawyer D, Valentine J. How super is superoxide? Acc Chem Res 1981;14: 393e400.
[36] Hayyan M, Hashim M, AlNashef M. Superoxide ion: generation and chemical implications. Chem Rev 2016;116:3029e85.
[37] Karafas ES, Romanias MN, Stefanopoulos V, Zachopoulos A, Kiriakidis G, Papagiannakopoulos P. Effect of metal doped and co-doped TiO2 photocatalysts oriented to degrade indoor/outdoor pollutants for air quality improvement. A kinetic and product study using acetaldehyde as probe molecule. J Photochem Photobiol Chem 2019;371:255e63.
[38] Binas V, Venieri D, Kotzias D, Kiriakidis G. Modified TiO2 based photocatalysts for improved air and health quality. J Materiomics 2017;3:3e16.

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