Investigation of photocatalytic degradation of phenol by Fe(III)-doped TiO2 and TiO2 nanoparticles

Journal of Environmental Health Science Engineering

Amir Hossein Javadi²  Ramin Nabizadeh³  Amir Hossein Mahvi¹  Simin Nasseri¹  Saeedeh Hemmati Borji¹ 

[1] Department of Environmental Health Engineering, School of Public Health and Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran;Nanotechnology department, Engineering Research Institute, Tehran, Iran;Department of Environmental Health Engineering, Tehran University of Medical Sciences, Tehran, Iran

关键词: Sol–gel method;    P25 TiO₂;    Fe (III)-doped TiO₂;    Phenol;    Aqueous solution;   

Others  :  1164618
DOI  :  10.1186/2052-336X-12-101

 received in 2013-10-26, accepted in 2014-05-28,  发布年份 2014

【 摘 要 】

In this study Fe (III)-doped TiO₂ nanoparticles were synthesized by sol–gel method at two atomic ratio of Fe/Ti, 0.006 and 0.034 percent. Then the photoactivity of them was investigated on degradation of phenol under UV (<380 nm) irradiation and visible light (>380 nm). Results showed that at appropriate atomic ratio of Fe to Ti (% 0.034) photoactivity of Fe(III)–doped TiO₂ nanoparticles increased. In addition, the effects of various operational parameters on photocatalytic degradation, such as pH, initial concentration of phenol and amount of photocatalyst were examined and optimized. At all different initial concentration, highest degradation efficiency occurred at pH = 3 and 0.5 g/L Fe(III)–doped TiO₂ dosage. With increase in initial concentration of phenol, photocatalytic degradation efficiency decreased. Photoactivity of Fe (III)-doped TiO₂ under UV irradiation and visible light at optimal condition (pH = 3 and catalyst dosage = and 0.5 g/L) was compared with P25 TiO₂ nanoparticles. Results showed that photoactivity of Fe(III)-doped TiO₂ under visible light was more than P25 TiO₂ photoactivity, but it was less than P25 TiO₂ photoactivity under UV irradiation. Also efficiency of UV irradiation alone and amount of phenol adsorption on Fe(III)-doped TiO₂ at dark condition was investigated.

【 授权许可】

   
2014 Hemmati Borji et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

Figure 3.

Figure 4.

Figure 5.

Figure 6.

Figure 7.

Figure 8.

Figure 9.

Figure 10.

【 参考文献 】

• [1]Adan C, Bahamonde A, Fernandez-Garcıa M, Martınez-Arias A: Structure and activity of nanosized iron-doped anatase TiO2 catalysts for phenol photocatalytic degradation. Appl Catal B 2007, 72:11-17.
• [2]Laoufi NA, Tassalit D, Bentahar F: The degradation of phenol in water solution by TiO2 photocatalysis in a helical reactor. Glob Nest J 2008, 10:404-418.
• [3]Sakthivel S, Shankar MV, Palanichamy M, Arabindoo B, Bahnemann DW, Murugesan V: Enhancement of photocatalytic activity by metal deposition: characterisation and photonic efficiency of Pt, Au and Pd deposited on TiO2 catalyst. Water Res 2004, 38:3001-3008.
• [4]Hung WC, Fu SH, Tseng JJ, Chu H, Ko TH: Study on photocatalytic degradation of gaseous dichloromethane using pure and iron Ion-doped TiO2 prepared by the sol–gel method. Chemosphere 2007, 66:2142-2151.
• [5]Zhou M, Yu J, Cheng B, Yu H: Preparation and photocatalytic activity of Fe-doped mesoporous titanium dioxide nanocrystalline photocatalysts. Mater Chem Phys 2005, 93:159-163.
• [6]Yang L, Yu LE, Ray MB: Degradation of paracetamol in aqueous solutions by TiO2 photocatalysis. Water Res 2008, 42:3480-3488.
• [7]Sun L, Li J, Wang CL, Li SF, Chen HB, Lin CJ: An electrochemical strategy of doping Fe(III) into TiO2 nanotube array films for enhancement in photocatalytic activity. Sol Energy Mater Sol Cells 2009, 93:1875-1880.
• [8]Zhou M, Yu J, Cheng B: Effects of Fe-doping on the photocatalytic activity of mesoporous TiO2 powders prepared by an ultrasonic method. J Hazard Mater 2006, 137:1838-1847.
• [9]Hu X, An T, Zhang M, Sheng G, Fu J: Preparation and photocatalytic activities of Fe+3 doped nanometer TiO2 composites. Res J Chem Environ 2007, 11:13-21.
• [10]Piera E, Tejedor MIT, Zorn ME, Anderson MA: Relationship concerning the nature and concentration of Fe (III) species on the surface of TiO2 particles and photocatalytic activity of the catalyst. Appl Catal B 2003, 46:671-685.
• [11]Zhu J, Zheng W, He B, Zhang J, Anpo M: Characterization of Fe-TiO2 photocatalysts synthesized by hydrothermal method and their photocatalytic reactivity for photodegradation of XRG dye diluted in water. J Mol Catal A Chem 2004, 216:35-43.
• [12]Li Z, Shen W, He W, Zu X: Effect of Fe-doped TiO2 nanoparticle derived from modified hydrothermal process on the photocatalytic degradation performance on methylene blue. J Hazard Mater 2008, 155:590-594.
• [13]Liu S, Chen Y: Enhanced photocatalytic activity of TiO2 powders doped by Fe unevenly. Catal Commun 2009, 10:894-899.
• [14]Wade J: An investigation of TiO2-ZnFe2O4 nanocomposites for visible light photocatalysis. In MSc Thesis. South Florida University: Electrical Engineering Department; 2005.
• [15]Eaton AD, Clesceri LS, Franson MAH: Standard methods for the examination of water & wastewater. Washington DC: American Public Health Association; 2005.
• [16]Hong SS, Ju CS, Lim CG, Ahn BH, Lim KT, Lee GD: A photocatalytic degradation of phenol over TiO2 prepared by sol–gel method. J Ind Eng Chem 2001, 7:99-104.
• [17]Kashif N, Ouyang F: Parameters effect on heterogeneous photocatalysed degradation of phenol in aqueous dispersion of TiO2. J Environ Sci 2009, 21:527-533.
• [18]Chen D, Ray AK: Photocatalytic kinetics of phenol and its derivatives over UV irradiated TiO2. Appl Catal B 1999, 23:143-157.
• [19]Sobczynski A, Duczmal L, Zmudzinski W: Phenol destruction by photocatalysis on TiO2: an attempt to solve the reaction mechanism. J Mol Catal A Chem 2004, 213:225-230.
• [20]Mahvi AH, Maleki A, Alimohamadi M, Ghasri A: Photo-oxidation of phenol in aqueous solution: toxicity of intermediates. Korean J Chem Eng 2007, 24:79-82.
• [21]Guo Z, Ma R, Li G: Degradation of phenol by nanomaterial TiO2 in wastewater. Chem Eng J 2006, 119:55-59.
• [22]Bhatkhande DS, Pangarkar VG, ACM Beenackers A: Photocatalytic degradation for environmental applications-a review. J Chem Technol Biotechnol 2002, 77:102-116.
• [23]Akbal F, Onar AN: Photocatalytic degradation of phenol. Environ Monit Assess 2003, 83:295-302.
• [24]Paz Y: Preferential photodegradation-why and how? C R Chim 2006, 9(5–6):774-787.
• [25]Mahvi AH, Ghanbarian M, Nasseri S, Khairi A: Mineralization and discoloration of textile wastewater by TiO2 nanoparticles. Desalination 2009, 239:309-316.
• [26]Shamsun Nahar M, Hasegawa K, Kagaya S: Photocatalytic degradation of phenol by visible light-responsive iron-doped TiO2 and spontaneous sedimentation of the TiO2 particles. Chemosphere 2006, 65:1976-1982.