Abstract
We report the fabrication of a metal-decorated hybrid nanocomposite with TiO2 encapsulation (Metal/SiO2@TiO2, Metal=Pt or Ru) using a simple surface-modification chemical process. Metal nanoparticles capped with polyvinylpyrrolidone were successfully assembled on functionalized SiO2 via electrostatic interactions, after which a thin layer of TiO2 was coated on the surface by the sol-gel process to avoid agglomeration of the coated silica spheres. Transmission electron microscopy studies confirmed that the metal nanoparticles were uniformly distributed throughout the surface of the SiO2 with a thin layer of TiO2. In addition, X-ray diffraction was employed to ensure the crystal structure of the uniformly coated thin TiO2 layer. Even after calcination at 500 °C, the structure remained intact, confirming high thermal stability. The photocatalytic activity of the metal-decorated SiO2/TiO2 nanocomposites was evaluated using the H2 evolution reaction. The Metal/SiO2@TiO2 catalysts show the photocatalytic water splitting efficiency for H2 generation (i.e., 0.14% for Pt/SiO2@TiO2 and 0.12% for Ru/SiO2@TiO2), while there is no generation of H2 on the Metal/SiO2 without a coating layer. These results indicate that the anatase crystalline coating layer has good thermal and chemical stability and plays a significant role in photocatalytic H2 production.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
R.M. Navarro, M.A. Pena and J. L. G. Fierro, Chem. Rev., 107, 3952 (2007).
B. Naik, S. M. Kim, C. H. Jung, S.Y. Moon, S. H. Kim and J.Y. Park, Adv. Mater. Interfaces., 1, 1300018 (2014).
A. Kudo and Y. Miseki, Chem. Soc. Rev., 38, 253 (2009).
B. Naik, S. Martha and K. M. Parida, Int. J. Hydrogen. Energy, 36, 2794 (2011).
M.R. Hoffmann, S.T. Martin, W.Y. Choi and D.W. Bahnemann, Chem. Rev., 95, 69 (1995).
A.L. Linsebigler, G.Q. Lu and J.T. Yates, Chem. Rev., 95, 735 (1995).
X. Chen and S. S. Mao, Chem. Rev., 107, 2891 (2007).
J.W. Lee, M.R. Othman, Y. Eom, T.G. Lee, W. S. Kim and J. Kim, Micropor. Mesopor. Mater., 116, 561 (2008).
N. Rungjaroentawon, S. Onsuratoom and S. Chavadej, Int. J. Hydrogen Energy, 37, 11061 (2012).
F. Tian, Z. S. Wu, Y. J. Yan, X.Y. Ge and Y.B. Tong, Korean J. Chem. Eng., 32, 1333 (2015).
D. J. Reidy, J.D. Holmes and M.A. Morris, Ceram. Int., 32, 235 (2006).
K. Wang, Y. X. Chen and F. X. Ye, Chinese. J. Catal., 25, 931 (2004).
S. Alijani, A.Z. Moghaddam, M. Vaez and J. Towfighi, Korean J. Chem. Eng., 30, 1855 (2013).
P. S. Niphadkar, S. K. Chitale, S. K. Sonar, S. S. Deshpande, P. N. Joshi and S.V. Awate, J. Mater. Sci., 49, 6383 (2014).
P. Wilhelm and D. Stephan, J. Colloid Interface Sci., 293, 88 (2006).
H. Nakamura, M. Ishii, A. Tsukigase, M. Harada and H. Nakano, Langmuir, 21, 8918 (2005).
D. P. Wang and H. C. Zeng, Chem. Mater., 21, 4811 (2009).
P. Wilhelm and D. Stephan, J. Photochem. Photobiol. A., 185, 19 (2007).
L.X. Liu, P. Dong, R.X. Liu, Q. Zhou, X.D. Wang, G.Y. Yi and B.Y. Cheng, J. Colloid Interface Sci., 288, 1 (2005).
K.D. Kim, H. J. Bae and H.T. Kim, Colloids Surf., A., 221, 163 (2003).
H. Nakamura, M. Ishii, A. Tsukigase, M. Harada and H. Nakano, Langmuir, 22, 1268 (2006).
B. Naik, S.Y. Moon, S. Oh, C. H. Jung and J.Y. Park, Catal. Lett., 145, 930 (2015).
A.S. Reddy, S. Kim, H.Y. Jeong, S. Jin, K. Qadir, K. Jung, C.H. Jung, J.Y. Yun, J.Y. Cheon, J. M. Yang, S. H. Joo, O. Terasaki and J. Y. Park, Chem. Commun., 47, 8412 (2011).
J. Yun, C. H. Jung, D. Park, H.Y. Koo, J.Y. Yun, Y. Kim and J.Y. Park, Korean J. Chem. Eng., 31, 1980 (2014).
S.H. Joo, J. Y. Park, C. K. Tsung, Y. Yamada, P.D. Yang and G.A. Somorjai, Nature Mater., 8, 126 (2009).
Y. Kobayashi, H. Katakami, E. Mine, D. Nagao, M. Konno and L. M. Liz-Marzan, J. Colloid Interface Sci., 283, 392 (2005).
K. Gude and R. Narayanan, J. Phys. Chem. C, 114, 6356 (2010).
R.M. Rioux, H. Song, J.D. Hoefelmeyer, P. Yang and G. A. Somorjai, J. Phys. Chem. B, 109, 2192 (2005).
S.H. Joo, J.Y. Park, J.R. Renzas, D.R. Butcher, W.Y. Huang and G. A. Somorjai, Nano Lett., 10, 2709 (2010).
K. Qadir, S. H. Joo, B. S. Mun, D.R. Butcher, J.R. Renzas, F. Aksoy, Z. Liu, G.A. Somorjai and J.Y. Park, Nano Lett., 12, 5761 (2012).
S.H. Lim, N. Phonthammachai, S. S. Pramana and T. J. White, Langmuir, 24, 6226 (2008).
K. An, S. Alayoglu, N. Musselwhite, K. Na and G. A. Somorjai, J. Am. Chem. Soc., 136, 6830 (2014).
D. Wen, S. J. Guo, J. F. Zhai, L. Deng, W. Ren and S. J. Dong, J. Phys. Chem. C, 113, 13023 (2009).
R.G. Freeman, K. C. Grabar, K. J. Allison, R. M. Bright, J. A. Davis, A. P. Guthrie, M. B. Hommer, M. A. Jackson, P. C. Smith, D. G. Walter and M. J. Natan, Science, 267, 1629 (1995).
M. Hussain, M. Ahmad, A. Nisar, H.Y. Sun, S. Karim, M. Khan, S.D. Khan, M. Iqbal and S. Z. Hussain, New J. Chem., 38, 1424 (2014).
Y. S. Kim, H. I. Kim, M.A. Dar, H.K. Seo, G. S. Kim, S.G. Ansari, J. J. Senkevich and H. S. Shin, Electrochem. Solid. St., 9, C19 (2006).
B. Naik, S.Y. Moon, S. H. Kim and J.Y. Park, Appl. Surf. Sci., 354, 347 (2015).
K. Kato, A. Tsuzuki, H. Taoda, Y. Torii, T. Kato and Y. Butsugan, J. Mater. Sci., 29, 5911 (1994).
R.Y. Zhang, D. K. Shen, M. Xu, D. Feng, W. Li, G. F. Zheng, R.C. Che, A. A. Elzatahry and D.Y. Zhao, Adv. Energy. Mater., 4, 130175 (2014).
B.K. Vijayan, N. M. Dimitrijevic, J. S. Wu and K.A. Gray, J. Phys. Chem. C, 114, 21262 (2010).
K.C. Goddeti, S.M. Kim, Y.K. Lee, S.H. Kim and J.Y. Park, Catal. Lett., 144, 1411 (2014).
J.Y. Park, L.R. Baker and G.A. Somorjai, Chem. Rev., 115, 2781 (2015).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Moon, S.Y., Naik, B. & Park, J.Y. Photocatalytic activity of metal-decorated SiO2@TiO2 hybrid photocatalysts under water splitting. Korean J. Chem. Eng. 33, 2325–2329 (2016). https://doi.org/10.1007/s11814-016-0085-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-016-0085-7