UNMODIFIED AND GOLD-MODIFIED SEMICONDUCTOR CATALYSTS FOR SOLAR LIGHT ASSISTED PHOTODEGRADATION OF CRYSTAL VIOLET
DOI:
https://doi.org/10.24193/subbchem.2017.1.17Keywords:
semiconductor oxides, modification with gold, sputter coating, photodegradation, crystal violetAbstract
Different unmodified and modified semiconductor photocatalysts were used for the complete decolorization of an unbuffered crystal violet solution. The decolorization efficiency of commercially available ZnO and TiO2 (anatase nanopowder) was compared with those of newly prepared gold-modified ZnOs (Au/ZnOs). Two Au/ZnOs were prepared from pure ZnO powder through deposition of gold by direct current (DC) sputtering. The morphological characterization of the Au/ZnOs was done with the aid of scanning electron microscopy. ZnO-based catalysts show significantly higher decolorization power in comparison with TiO2. Au/ZnOs show slightly higher activity than unmodified ZnO.
References
C.A. Martínez-Huitle, E. Brillas, Applied Catalysis B: Environmental, 2009, 87, 105.
S.H.S. Chan, T.Y. Wu, J.C. Juan, C.Y. Teh, Journal of Chemical Technology and Biotechnology, 2011, 86, 1130.
S. Palit, Nature Environment and Pollution Technology, 2012, 11, 697.
P.V. Kamat, Chemical Reviews, 1993, 93, 267.
G. Rothenberger, J. Moser, M. Grätzel, N. Serpone, D.K. Sharma, Journal of the American Chemical Society, 1985, 107, 8054.
P.V. Kamat, Journal of Physical Chemistry B, 2002, 106, 7729.
P.V. Kamat, Pure and Applied Chemistry, 2002, 74, 1693.
K. Rajeshwar, N.R. de Tacconi, C.R. Chenthamarakshan, Chemistry of Materials, 2001, 13, 2765.
A.A. Ashkarran, Applied Physics A, 2012, 107, 401.
P.-K. Chen, G.-J. Lee, S. Anandan, J.J. Wu, Materials Science and Engineering: B, 2012, 177, 190.
C. Chen, Y. Lu, H. He, K. Wu, Z. Ye, Applied Physics A, 2013, 110, 47.
J.W. Chiou, S.C. Ray, H.M. Tsai, C.W. Pao, F.Z. Chien, W.F. Pong, C.H. Tseng, J.J. Wu, M.-H. Tsai, C.-H. Chen, H.J. Lin, J.F. Lee, J.-H. Guo, Journal of Physical Chemistry C, 2011, 115, 2650.
R. Georgekutty, M.K. Seery, S.C. Pillai, Journal of Physical Chemistry C, 2008, 112, 13563.
C.A.K. Gouvêa, F. Wypych, S.G. Morales, N. Durán, P. Peralta-Zamora, Chemosphere, 2000, 40, 427.
J. Kim, K. Yong, Journal of Nanoparticle Research, 2012, 14, art. No. 1033.
Y. Lai, M. Meng, Y. Yu, Applied Catalysis B: Environmental, 2010, 100, 491.
P. Li, Z. Wei, T. Wu, Q. Peng, Y. Li, Journal of the American Chemical Society, 2011, 133, 5660.
G. Sinha, L.E. Depero, I. Alessandri, ACS Applied Materials & Interfaces, 2011, 3, 2557.
L. Sun, D. Shao, Z. Song, C. Shan, Z. Zhang, B. Li, D. Shen, Journal of Colloid and Interface Science, 2011, 363, 175.
T. Tan, Y. Li, Y. Liu, B. Wang, X. Song, E. Li, H. Wang, H. Yan, Materials Chemistry and Physics, 2008, 111, 305.
K. Thongsuriwong, P. Amornpitoksuk, S. Suwanboon, Journal of Sol-Gel Science and Technology, 2012, 62, 304.
J. Wang, X.M. Fan, Z.W. Zhou, K. Tian, Materials Science and Engineering: B, 2011, 176, 978.
J. Wang, Q. Hu, Z. Li, J. Guo, Y. Li, Materials Letters, 2012, 79, 277.
T.-J. Whang, M.-T. Hsieh, H.-H. Chen, Applied Surface Science, 2012, 258, 2796.
J.-J. Wu, C.-H. Tseng, Applied Catalysis B: Environmental, 2006, 66, 51.
F. Xiao, F. Wang, X. Fu, Y. Zheng, Journal of Materials Chemistry, 2012, 22, 2868.
J. Xie, Q. Wu, Materials Letters, 2010, 64, 389.
D. Zhang, F. Zeng, Research on Chemical Intermediates, 2010, 36, 1055.
Y. Chen, D. Zeng, K. Zhang, A. Lu, L. Wang, D.-L. Peng, Nanoscale, 2014, 6, 874.
Q. Huang, S. Liu, W. Wei, Q. Yan, C. Wu, RCS Advances, 2015, 5, 27075.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2017 Studia Universitatis Babeș-Bolyai Chemia
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
