Abstract
p-n heterojunction was constructed using p-type Cupric oxide (CuO) and n-type Tin (IV) oxide (SnO2) nanoparticles using chemical synthesis and annealing method. The synthesized SnO2-CuO nanoparticles were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), etc. The methylene blue (MB) degradation ability of the synthesized SnO2-CuO nanocomposite was investigated under UV illumination. Compared to the undoped SnO2, the SnO2-CuO p-n heterojunction exhibited enhanced MB degradation capability due the effective separation of electron-holes pair that suppresses the recombination. Based on the experimental results, the charge dynamics and the probable dye degradation mechanism via SnO2-CuO nanoparticles was proposed.
Similar content being viewed by others
References
L. Gnanasekaran, R. Hemamalini, R. Saravanan, K. Ravichandran, F. Gracia, S. Agarwal and V. K. Gupta, J. Photochem. Photobiol. B: Biol, 173, 43 (2017).
X.-J. Zheng, Y-J. Wei, L.-F. Wei, B. Xie and M.-B. Wei, Int. J. Hydrogen Energy, 35, 11709 (2010).
N. F. Khairol, N. Sapawe and M. Danish, Mater. Today: Proceedings, 19, 1333 (2019).
P. D. Shivaramu, A. Patil, M. Murthy, S. Tubaki, M. Shastri, S. Manjunath, V. Gangaraju and D. Rangappa, Mater. Today: Proceedings, 4, 12314 (2017).
H.-l. Xia, H.-S. Zhuang, T. Zhang and D.-C. Xiao, J. Environ. Sci., 19, 1141 (2007).
A. Enesca, L. Isac and A. Duta, Thin Solid Films, 542, 31 (2013).
Y. Bessekhouad, D. Robert and J. Weber, J. Photochem. Photobiol. A: Chem., 163, 569 (2004).
S. Kohtani, M. Tomohiro, K. Tokumura and R. Nakagaki, Appl. Catal. B: Environ, 58, 265 (2005).
A. H. Mamaghani, F. Haghighat and C.-S. Lee, Appl. Catal. B: Environ., 203, 247 (2017).
A. Zaleska, Recent Patents on Eng, 2, 157 (2008).
M. Ahmad, E. Ahmed, Y. Zhang, N. Khalid, J. Xu, M. Ullah and Z. Hong, Curr. Appl. Phys., 13, 697 (2013).
M. V. Dozzi and E. Selli, J. Photochem. Photobiol. C: Photochem. Rev., 14, 13 (2013).
N. L. Gavade, S. B. Babar, A. N. Kadam, A. D. Gophane and K. M. Garadkar, Ind. Eng. Chem. Res., 56, 14489 (2017).
R. Kumar, G. Kumar and A. Umar, Mater. Lett., 97, 100 (2013).
J. Lee, Y. Lee, J. K. Youn, H. B. Na, T. Yu, H. Kim, S. M. Lee, Y. M. Koo, J. H. Kwak and H. G. Park, Small, 4, 143 (2008).
C. Lin, Y. Song, L. Cao and S. Chen, J. Chin. Adv. Mater. Soc., 1, 188 (2013).
R. Saravanan, S. Karthikeyan, V. Gupta, G. Sekaran, V. Narayanan and A. Stephen, Mater. Sci. Eng.: C, 33, 91 (2013).
O. Mounkachi, E. Salmani, M. Lakhal, H. Ez-Zahraouy, M. Hamedoun, M. Benaissa, A. Kara, A. Ennaoui and A. Benyoussef, Solar Energy Mater. Solar Cells, 148, 34 (2016).
B. Babu, A. Kadam, R. Ravikumar and C. Byon, J. Alloys Compd., 703, 330 (2017).
I. Leontyev, D. Y. Chernyshov, V. Guterman, E. Pakhomova and A. Guterman, Appl. Catal. A: Gen., 357, 1 (2009).
N. T. Thanh, N. Maclean and S. Mahiddine, Chem. Rev., 114, 7610 (2014).
M. T. Uddin, Y. Nicolas, C. Olivier, T. Toupance, L. Servant, M. M. Müller, H.-J. Kleebe, J. R. Ziegler and W. Jaegermann, Inorg. Chem., 51, 7764 (2012).
S. Poulston, P. Parlett, P. Stone and M. Bowker, Surf. Interface Anal., 24, 811 (1996).
W. Chen, Q. Li, H. Gan and W. Zeng, Adv. Appl. Ceram, 113, 139 (2014).
M. Chuai, X. Chen, K. Zhang, J. Zhang and M. Zhang, J. Mater. Chem. A, 7, 1160 (2019).
Acknowledgements
This work was supported by the basic Research & Development program [NRF-2019R1A2C2003804 and NRF-2017R1D1 A1B03035201] of the Ministry of Science and ICT, Republic of Korea. This work was also supported by Ajou University.
Author information
Authors and Affiliations
Corresponding authors
Rights and permissions
About this article
Cite this article
Eom, K., Yoo, I.H., Kalanur, S.S. et al. Photocatalytic degradation characteristics of heterojunction SnO2-CuxO nanopowders of methylene blue under UV light. Korean J. Chem. Eng. 38, 617–623 (2021). https://doi.org/10.1007/s11814-020-0700-5
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11814-020-0700-5