Abstract
Zr-codoped Ag–ZnO (Zr–Ag–ZnO) was successfully synthesized by the precipitation–decomposition method. The catalyst was characterized by X-ray diffraction, field-emission scanning electron microscopy, energy-dispersive spectra (EDS), diffuse reflectance spectra, photoluminescence spectra, cyclic voltammetry, and Brunauer–Emmett–Teller (BET) surface area measurements. The photocatalytic activity of Zr–Ag–ZnO was investigated for the degradation of Naphthol Blue Black (NBB) in aqueous solution using solar light. Codoping shifted the absorbance of ZnO to the entire visible region. Zr–Ag–ZnO is found to be more efficient than Ag–ZnO, Zr–ZnO, commercial ZnO, prepared ZnO, TiO2-P25, and TiO2 (Merck) at pH 9 for mineralization of NBB under solar light. The influence of operational parameters such as the amount of photocatalyst, dye concentration, and initial pH on photomineralization of NBB has been analyzed. Mineralization of NBB was confirmed by chemical oxygen demand (COD) measurements. A mechanism is proposed for the degradation of NBB under solar light. The catalyst is found to be reusable.
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H. Tada, M. Kubo, Y. Inubushic, S. Ito, Chem. Commun. 977–978 (2000)
D. Ye, D.Z. Li, W.J. Zhang, M. Sun, Y. Hu, Y.F. Zhang, X.Z. Fu, J. Phys. Chem. C 112, 17351–17356 (2008)
A. Fujishima, T.N. Rao, D.A. Tryk, J. Photochem. Photobiol. C 1, 1–21 (2000)
R. Asahi, T. Morikawa, T. Okwaki, K. Aoki, Y. Taga, Science 293, 269–271 (2001)
B. Krishnakumar, M. Swaminathan, Spectrochim Acta A 81, 739–744 (2011)
H. Wang, S. Baek, J. Lee, S. Lim, Chem. Eng. J. 146, 355–361 (2009)
B. Krishnakumar, M. Swaminathan, Indian J. Chem. 49, 1035–1040 (2010)
J. Baxter, Z.X. Bian, G. Chen, D. Danielson, M.S. Dresselhaus, A.G. Fedorov, T.S. Fisher, C.W. Jones, E. Maginn, U. Kortshagen, A. Manthiram, A. Nozik, D.R. Rolison, T. Sands, L. Shi, D. Sholl, Y.Y. Wu, Energy Environ. Sci. 2, 559–588 (2009)
H. Tamiaki, R. Shibata, T. Mizoguchi, Photochem. Photobiol. 83, 152–162 (2007)
X.G. Zhu, S.P. Long, D.R. Ort, Curr. Opin. Biotechnol. 19, 153–159 (2008)
G. Calzaferri, Top. Catal. 53, 130–140 (2010)
L.M. Goncalves, V.D. Bermudez, H.A. Ribeiro, A.M. Mendes, Energy Environ. Sci. 1, 655–667 (2008)
Y. Inoue, Energy Environ. Sci. 2, 364–386 (2009)
M.D. Hernandez-Alonso, F. Fresno, S. Suarez, J.M. Coronado, Energy Environ. Sci. 2, 1231–1257 (2009)
M. Law, L.E. Greene, J.C. Johnson, R. Saykally, P.D. Yang, Nat. Mater. 4, 455–459 (2005)
M.C. Yeber, J. Roderiguez, J. Freer, J. Baeza, N. Duran, H.D. Mansilla, Chemosphere 39, 1679–1688 (1999)
T. Sreethawong, S. Yoshikawa, Mater. Res. Bull. 47, 1385–1395 (2012)
Z. Hosseini, N. Taghavinia, N. Sharifi, M. Chavoshi, M. Rahman, J. Phys. Chem. C 112, 18686–18689 (2008)
T. Abe, E. Suzuki, K. Nagoshi, K. Miyashita, M. Kaneko, J. Phys. Chem. B 103, 1119–1123 (1999)
M.J. Height, S.E. Pratsinis, O. Mekasuwandumrong, P. Praserthdam, Appl. Catal. B 63, 305–312 (2006)
H. Li, Z. Bian, J. Zhu, Y. Huo, H. Li, Y.J. Lu, Am. Chem. Soc. 129, 4538–4539 (2007)
X. Wang, G. Li, Y. Wang, Chem. Phys. Lett. 469, 308–312 (2009)
N. Zhao, M. Yao, F. Li a, F. Lou, J. Solid State Chem. 184, 2770–2775 (2011)
X. Yanga, F. Mab, K. Li, Y. Guob, J. Hub, W. Li, M. Huoa, Y. Guob, J. Hazard. Mater. 175, 429–438 (2010)
H. Serier, O. Toulemonde, D. Bernard, A. Demourgues, J. Majimel, M. Mater, Res. Bull. 47, 755–762 (2012)
J. Lukac, M. Klementova, P. Bezdicka, S. Bakardjieva, J. Subrt, L. Szatmary, Z. Bastl, J. Jirkovsky, Appl. Catal. B 74, 83–91 (2007)
Y.M. Wang, S.W. Liu, M.K. Lü, S.F. Wang, F. Gu, X.Z. Gai, X.P. Cui, J. Pan, J. Mol. Catal. A 215, 137–142 (2004)
L. Jiang, W. Qizhao, Li Caolong, J. Yuan, W. Shangguan, Int. J. Hydrogen Energy 35, 7043–7050 (2010)
C. Karunakaran, V. Rajeswari, P. Gomathisankar, Mater. Sci. Semicond. Process. 14, 133–138 (2011)
S. Swetha, R. Geetha Balakrishna, Chin. J. Catal. 32, 789–794 (2011)
B. Subash, B. Krishnakumar, R. Velmurugan, M. Swaminathan,M. Shanthi, Catal. Sci. Technol. (2012). doi: 10.1039/c2cy20254a
B. Krishnakumar, B. Subash, M. Swaminathan, Sep. Purif. Technol. 85, 35–44 (2012)
R. Velmurugan, M. Swaminathan, Sol. Energy Mater. Sol. Cells 95, 942–950 (2011)
B. Krishnakumar, K. Selvam, R. Velmurugan, M. Swaminathan, Desalination Water Treat 24, 132–139 (2010)
Acknowledgments
One of the authors (M. Swaminathan) is grateful to CSIR, New Delhi, India for financial support through research grant no. 21(0799)/10/EMR-II. One of the authors (M. Shanthi) is highly grateful to UGC, New Delhi, India for financial support through research project F. No 41-288/2012 (SR). One of the authors (B. Subash) is grateful to UGC, New Delhi, India for a BSR Fellowship. One of the authors (B. Krishnakumar) is grateful to CSIR, New Delhi, India, for a senior research fellowship.
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Subash, B., Krishnakumar, B., Swaminathan, M. et al. Solar-light-assisted photocatalytic degradation of NBB dye on Zr-codoped Ag–ZnO catalyst. Res Chem Intermed 39, 3181–3197 (2013). https://doi.org/10.1007/s11164-012-0831-3
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DOI: https://doi.org/10.1007/s11164-012-0831-3