Comparative evaluation of anion doped photocatalysts on the mineralization and decolorization of natural organic matter
作者： NC Birben , CS Uyguner-Demirel , S Sen-Kavurmaci , Y Yalcin Gurkan , N Turkten
DOI: 10.1016/J.CATTOD.2014.04.020
关键词:
摘要: Abstract The aim of this study was to assess photocatalytic performance various anion doped TiO2 specimens on the degradation natural organic matter represented by humic acids. Nitrogen (N-doped), sulfur (S-doped) and sulfur–nitrogen co-doped (S–N co-doped) were prepared according a wet impregnation method. Their activities evaluated with regard kinetics acid in terms UV–vis spectroscopic parameters (Color436 UV254) dissolved carbon (DOC) as indicators decolorization mineralization respectively. presence different dopants structure ended up differences Moreover, use pure anatase form (Hombikat UV-100) for doping came higher activity than using composed mixture rutile (Degussa P-25). Humic fluorescence excitation emission matrix (EEM) contour plots showed that solar pathway type specific irrespective dopants.
sci-hub.se 参考文章(33)
S Girish Kumar, L Gomathi Devi, None, Review on Modified TiO2 Photocatalysis under UV/Visible Light: Selected Results and Related Mechanisms on Interfacial Charge Carrier Transfer Dynamics Journal of Physical Chemistry A. ,vol. 115, pp. 13211- 13241 ,(2011) , 10.1021/JP204364A
Cristiana Di Valentin, Gianfranco Pacchioni, Trends in non-metal doping of anatase TiO2: B, C, N and F Catalysis Today. ,vol. 206, pp. 12- 18 ,(2013) , 10.1016/J.CATTOD.2011.11.030
Hyun Uk Lee, Soon Chang Lee, Sae Hae Choi, Byoungchul Son, Soo Jae Lee, Hae Jin Kim, Jouhahn Lee, Highly visible-light active nanoporous TiO2 photocatalysts for efficient solar photocatalytic applications Applied Catalysis B-environmental. ,vol. 129, pp. 106- 113 ,(2013) , 10.1016/J.APCATB.2012.09.010
C.S. Uyguner-Demirel, M. Bekbolet, Significance of analytical parameters for the understanding of natural organic matter in relation to photocatalytic oxidation Chemosphere. ,vol. 84, pp. 1009- 1031 ,(2011) , 10.1016/J.CHEMOSPHERE.2011.05.003
Xiaoping Wang, Teik-Thye Lim, Solvothermal synthesis of C–N codoped TiO2 and photocatalytic evaluation for bisphenol A degradation using a visible-light irradiated LED photoreactor Applied Catalysis B-environmental. ,vol. 100, pp. 355- 364 ,(2010) , 10.1016/J.APCATB.2010.08.012
Ying Yang, Hui Zhong, Congxue Tian, Zhiqiang Jiang, Single-step preparation, characterization and photocatalytic mechanism of mesoporous Fe-doped sulfated titania Surface Science. ,vol. 605, pp. 1281- 1286 ,(2011) , 10.1016/J.SUSC.2011.04.016
Jiaguo Yu, Minghua Zhou, Bei Cheng, Xiujian Zhao, Preparation, characterization and photocatalytic activity of in situ N,S-codoped TiO2 powders Journal of Molecular Catalysis A-chemical. ,vol. 246, pp. 176- 184 ,(2006) , 10.1016/J.MOLCATA.2005.10.034
Hongqi Sun, Yuan Bai, Youping Cheng, Wanqin Jin, Nanping Xu, Preparation and characterization of visible-light-driven carbon-sulfur-codoped TiO2 photocatalysts Industrial & Engineering Chemistry Research. ,vol. 45, pp. 4971- 4976 ,(2006) , 10.1021/IE060350F
A.V. Emeline, G.N. Kuzmin, N. Serpone, Wavelength-dependent photostimulated adsorption of molecular O2 and H2 on second generation titania photocatalysts: The case of the visible-light-active N-doped TiO2 system Chemical Physics Letters. ,vol. 454, pp. 279- 283 ,(2008) , 10.1016/J.CPLETT.2008.02.010
Cristiana Di Valentin, Gianfranco Pacchioni, Annabella Selloni, Stefano Livraghi, Elio Giamello, Characterization of paramagnetic species in N-doped TiO2 powders by EPR spectroscopy and DFT calculations. Journal of Physical Chemistry B. ,vol. 109, pp. 11414- 11419 ,(2005) , 10.1021/JP051756T