Facile synthesis of g-CN/ATO hybrid nanocomposite and its application for the photodegradation of organic compounds

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    Photodegradation of organic pollutants using nanoparticles with suitable band gap is one of the most studied technologies in last few decades. About 6 nm antimony-doped tin oxide (ATO) nanoparticles, as the photocatalyst for organic degradation, is prepared by the calcination of the stoichiometric mixture of precursor hydroxides of Sn4+ and Sn3+. ATO was combined with thermally synthesized g-C3N4 and the resulting Z-scheme g-CN/ATO nanocomposite was utilized for the decomposition of salicylic acid (SA) in aqueous solution. All the samples were analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR) and the progress of the photocatalytic degradation reaction was measured by using UV-Visible spectroscopy. The rate constant measurements showed that the rate of degradation of SA is enhanced with hybrid nanocomposite.

     


  • Keywords


    Antimony-doped tin oxide (ATO), graphitic carbon nitride (g-CN), Salicylic acid (SA), and photocatalyst.

  • References


      [1] W.Z. Tang, Z. Zhang, H. An, M.O. Quintana, D.F. Torres, TiO2/UV Photodegradation of Azo Dyes in Aqueous Solutions, Environmental Technology, 18 (1997) 1-12.

      [2] A. Kudo, Y. Miseki, Heterogeneous photocatalyst materials for water splitting, Chemical Society Reviews, 38 (2009) 253-278.

      [3] H. Kazuhito, I. Hiroshi, F. Akira, TiO 2 Photocatalysis: A Historical Overview and Future Prospects, Japanese Journal of Applied Physics, 44 (2005) 8269.

      [4] P. Pichat, CHAPTER 12 An Overview of the Potential Applications of TiO2 Photocatalysis for Food Packaging, Medical Implants, and Chemical Compound Delivery, in: Photocatalysis: Applications, The Royal Society of Chemistry, 2016, pp. 345-367.

      [5] M. Anpo, M. Takeuchi, The design and development of highly reactive titanium oxide photocatalysts operating under visible light irradiation, Journal of Catalysis, 216 (2003) 505-516.

      [6] Y. Sun, W.D. Chemelewski, S.P. Berglund, C. Li, H. He, G. Shi, C.B. Mullins, Antimony-Doped Tin Oxide Nanorods as a Transparent Conducting Electrode for Enhancing Photoelectrochemical Oxidation of Water by Hematite, ACS Applied Materials & Interfaces, 6 (2014) 5494-5499.

      [7] J. Zhang, L. Gao, Synthesis and characterization of antimony-doped tin oxide (ATO) nanoparticles, Inorganic Chemistry Communications, 7 (2004) 91-93.

      [8] D.P. Ojha, H.P. Karki, H.J. Kim, Design of ternary hybrid ATO/g-C3N4/TiO2 nanocomposite for visible-light-driven photocatalysis, Journal of Industrial and Engineering Chemistry, 61 (2018) 87-96.

      [9] J. Schneider, M. Matsuoka, M. Takeuchi, J. Zhang, Y. Horiuchi, M. Anpo, D.W. Bahnemann, Understanding TiO2 photocatalysis: mechanisms and materials, Chemical Reviews, 114 (2014) 9919-9986.

      [10] L. Yuan, C. Han, M. Pagliaro, Y.-J. Xu, Origin of enhancing the photocatalytic performance of TiO2 for artificial photoreduction of CO2 through a SiO2 coating strategy, The Journal of Physical Chemistry C, 120 (2015) 265-273.

      [11] V.J.P. Vilar, C.C. Amorim, G. Li Puma, S. Malato, D.D. Dionysiou, Intensification of photocatalytic processes for niche applications in the area of water, wastewater and air treatment, Chemical Engineering Journal, 310, Part 2 (2017) 329-330.

      [12] S. Cao, J. Low, J. Yu, M. Jaroniec, Polymeric Photocatalysts Based on Graphitic Carbon Nitride, Advanced Materials, 27 (2015) 2150-2176.

      [13] J. Mao, L. Zhang, H. Wang, Q. Zhang, W. Zhang, P. Li, Facile fabrication of nanosized graphitic carbon nitride sheets with efficient charge separation for mitigation of toxic pollutant, Chemical Engineering Journal, 342 (2018) 30-40.

      [14] F. Bai, Y. He, P. He, Y. Tang, Z. Jia, One-step synthesis of monodispersed antimony-doped tin oxide suspension, Materials Letters, 60 (2006) 3126-3129.

      [15] D.P. Ojha, M.K. Joshi, H.J. Kim, Photo-Fenton degradation of organic pollutants using a zinc oxide decorated iron oxide/reduced graphene oxide nanocomposite, Ceramics International, 43 (2017) 1290-1297.

      [16] M.P.S. Rana, F. Singh, K. Joshi, S. Negi, R.C. Ramola, Influence of electronic excitations on structural, optical and electrical properties of undoped and antimony doped tin oxide thin films, Thin Solid Films, 616 (2016) 34-42.

      [17] M.J. Muñoz-Batista, M.N. Gómez-Cerezo, A. Kubacka, D. Tudela, M. Fernández-García, Role of Interface Contact in CeO2–TiO2 Photocatalytic Composite Materials, ACS Catalysis, 4 (2014) 63-72.

      [18] Y. Chen, W. Huang, D. He, Y. Situ, H. Huang, Construction of Heterostructured g-C3N4/Ag/TiO2 Microspheres with Enhanced Photocatalysis Performance under Visible-Light Irradiation, ACS applied materials & interfaces, 6 (2014) 14405-14414.

      [19] J. Zhang, Y. Nosaka, Mechanism of the OH radical generation in photocatalysis with TiO2 of different crystalline types, The Journal of Physical Chemistry C, 118 (2014) 10824-10832.


 

View

Download

Article ID: 24666
 
DOI: 10.14419/ijet.v7i3.32.24666




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.