Advertisement

Rare Metals

pp 1–8 | Cite as

Photocatalytic activity of cation (Mn) and anion (N) substitution in LaCoO3 nanoperovskite under visible light

  • Parvaneh Nakhostin PanahiEmail author
  • Mohammad Hossein Rasoulifard
  • Sara Babaei
Article
  • 42 Downloads

Abstract

LaCoO3 compound and novel photocatalysts of LaCo0.8Mn0.2O3 and N-doped LaCoO3 were synthesized by sol-gel method. The structure, morphology, size of particles and optical properties of the obtained powders were characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM) and ultraviolet–visible (UV–Vis) (DRS mode) spectroscopy. The perovskite structure obtained for all the prepared samples and doping Mn and N do not change the perovskite structure. SEM results revealed that the size of particles of all perovskites was less than 100 nm. Compared to that of parent LaCoO3, the band gap energy of LaCo0.8Mn0.2O3 and N-doped LaCoO3 considerably reduced due to the formation of impurity level. The photocatalytic activity of all samples was evaluated by the degradation of malachite green as a model dye under visible light irradiation. The discoloration induced by LaCo0.8Mn0.2O3 was twice that induced by pure LaCoO3 because of Mn ions with variable valance and smaller band gap energy. The nitrogen incorporation also significantly improved the photocatalytic activity of LaCoO3 due to more oxygen vacancies and the stronger absorption in visible region. In general, doping has been served as one of the most efficient methods for the improvement in band gap of photocatalysts.

Keywords

Nanoperovskite Photocatalyst Dyes contaminant Mn doping N doping 

Notes

Acknowledgements

The authors would like to acknowledge the financial support from University of Zanjan and Iranian Nanotechnology Initiative.

References

  1. [1]
    Ananpattarachai J, Kajitvichyanukul P, Seraphin S. Visible light absorption ability and photocatalytic oxidation activity of various interstitial N-doped TiO2 prepared from different nitrogen dopants. J Hazard Mater. 2009;168(1):253.CrossRefGoogle Scholar
  2. [2]
    Zhu X, Zhang J, Chen F. Hydrothermal synthesis of nanostructures Bi12TiO20 and their photocatalytic activity on acid orange 7 under visible light. Chemosphere. 2010;78(11):1350.CrossRefGoogle Scholar
  3. [3]
    Schneider J, Matsuoka M, Takeuchi M, Zhang J, Horiuchi Y, Anpo M, Bahnemann DW. Understanding TiO2 photocatalysis: mechanisms and materials. Chem Rev. 2014;114(19):9919.CrossRefGoogle Scholar
  4. [4]
    Grabowska E. Selected perovskite oxides: characterization, preparation and photocatalytic properties—a review. Appl Catal B. 2016;186:97.CrossRefGoogle Scholar
  5. [5]
    Thirumalairajan S, Girija K, Mastelaro VR, Ponpandian N. Photocatalytic degradation of organic dyes under visible light irradiation by floral-like LaFeO3 nanostructures comprised of nanosheet petals. New J Chem. 2014;38(11):5480.CrossRefGoogle Scholar
  6. [6]
    Jung WY, Hong SS. Synthesis of LaCoO3 nanoparticles by microwave process and their photocatalytic activity under visible light irradiation. J Ind Eng Chem. 2013;19(1):157.CrossRefGoogle Scholar
  7. [7]
    Jiang L, Wei ZX. The study on preparation and photocatalytic performance of perovskite LaCoO3 made by stearic acid sol-gel process. Nanoscience. 2007;12:20.Google Scholar
  8. [8]
    Dong B, Li Z, Li Z, Xu X, Song M, Zheng W, Wang C, Al-Deyab SS, El-Newehy M. Highly efficient LaCoO3 nanofibers catalysts for photocatalytic degradation of rhodamine B. J Am Ceram Soc. 2010;93(11):3587.CrossRefGoogle Scholar
  9. [9]
    Zhao W, Ma W, Chen C, Zhao J, Shuai Z. Efficient degradation of toxic organic pollutants with Ni2O3/TiO2-xBx under visible irradiation. J Am Chem Soc. 2004;126(15):4782.CrossRefGoogle Scholar
  10. [10]
    Sun J, Zhao X, Sun H, Fan W. Theoretical study of the origin of the enhanced visible light photocatalytic activity of N-doped CsTaWO6: charge compensation effects modulated by N and other defects. J Solid State Chem. 2012;194:352.CrossRefGoogle Scholar
  11. [11]
    Shang G, Fu H, Yang S, Xu T. Mechanistic study of visible-light-induced photodegradation of 4-chlorophenol by TiO2−xNx with low nitrogen concentration. Int J Photoenergy. 2012.  https://doi.org/10.1155/2012/759306.CrossRefGoogle Scholar
  12. [12]
    Jaimy KB, Safeena V, Ghosh S, Hebalkar NY, Warrier K. Photocatalytic activity enhancement in doped titanium dioxide by crystal defects. Dalton Trans. 2012;41(16):4824.CrossRefGoogle Scholar
  13. [13]
    Maegli AE, Hisatomi T, Otal EH, Yoon S, Pokrant S, Grätzel M, Weidenkaff A. Structural and photocatalytic properties of perovskite-type (La, Ca) Ti (O, N)3 prepared from A-site deficient precursors. J Mater Chem. 2012;22(34):17906.CrossRefGoogle Scholar
  14. [14]
    Jia L, Li J, Fang W. Enhanced visible-light active C and Fe co-doped LaCoO3 for reduction of carbon dioxide. Catal Commun. 2009;11(2):87.CrossRefGoogle Scholar
  15. [15]
    Hu R, Li C, Wang X, Sun Y, Jia H, Su H, Zhang Y. Photocatalytic activities of LaFeO3 and La2FeTiO6 in p-chlorophenol degradation under visible light. Catal Commun. 2012;29:35.CrossRefGoogle Scholar
  16. [16]
    Hosseini SA, Salari D, Niaei A, Oskoui SA. Physical–chemical property and activity evaluation of LaB 0.5Co0.5O3 (B = Cr, Mn, Cu) and LaMnxCo1−xO3 (x = 0.1, 0.25, 0.5) nano perovskites in VOC combustion. J Ind Eng Chem. 2013;19(6):1903.CrossRefGoogle Scholar
  17. [17]
    Reddy J, Kurra S, Guje R, Palla S, Veldurthi NK, Ravi G, Vithal M. Photocatalytic degradation of methylene blue on nitrogen doped layered perovskites, CsM2Nb3O10 (M = Ba and Sr). Ceram Int. 2015;41(2):2869.CrossRefGoogle Scholar
  18. [18]
    Kumar V, Uma S. Investigation of cation (Sn2+) and anion (N3−) substitution in favor of visible light photocatalytic activity in the layered perovskite K2La2Ti3O10. J Hazard Mater. 2011;189(1):502.CrossRefGoogle Scholar
  19. [19]
    Wang L, Pang Q, Song Q, Pan X, Jia L. Novel microbial synthesis of Cu doped LaCoO3 photocatalyst and its high efficient hydrogen production from formaldehyde solution under visible light irradiation. Fuel. 2015;140:267.CrossRefGoogle Scholar
  20. [20]
    Wei ZX, Xiao CM, Zeng WW, Liu JP. Magnetic properties and photocatalytic activity of La0.8Ba0.2Fe0.9Mn0.1O3−δ and LaFe0.9Mn0.1O3−δ. J Mol Catal A Chem. 2013;370:35.CrossRefGoogle Scholar
  21. [21]
    Kim JH, Hwang KT, Kim US, Kang YM. Photocatalytic characteristics of immobilized SrBi2Nb2O9 film for degradation of organic pollutants. Ceram Int. 2012;38(5):3901.CrossRefGoogle Scholar
  22. [22]
    Ling F, Anthony OC, Xiong Q, Luo M, Pan X, Jia L, Huang J, Sun D, Li Q. PdO/LaCoO3 heterojunction photocatalysts for highly hydrogen production from formaldehyde aqueous solution under visible light. Int J Hydrog Energy. 2016;41(14):6115.CrossRefGoogle Scholar
  23. [23]
    Al-Areqi NA, Al-Alas A, Al-Kamali AS, Ghaleb KA, Al-Mureish K. Photodegradation of 4-SPPN dye catalyzed by Ni(II)-substituted Bi2VO5.5 system under visible light irradiation: influence of phase stability and perovskite vanadate–oxygen vacancies of photocatalyst. J Mol Catal A Chem. 2014;381:1.CrossRefGoogle Scholar
  24. [24]
    Nuraje N, Lei Y, Belcher A. Virus-templated visible spectrum active perovskite photocatalyst. Catal Commun. 2014;44:68.CrossRefGoogle Scholar
  25. [25]
    Wei Y, Zhang X, Xu J, Wang J, Huang Y, Fan L, Wu J. Enhancement of photocatalytic activity from HCa2TaxNb3−xO10 (x = 0, 1), co-intercalated with sulfides particles. Appl Catal B. 2014;147:920.CrossRefGoogle Scholar
  26. [26]
    Zhang G, Zhou J, Ding X, Hu Y, Xie J. Characterization and photocatalytic properties of Ni-doped Sr10Bi6O24−y. J Hazard Mater. 2008;158(2–3):287.CrossRefGoogle Scholar
  27. [27]
    Asahi R, Morikawa T, Ohwaki T, Aoki K, Taga Y. Visible-light photocatalysis in nitrogen-doped titanium oxides. Science. 2001;293(5528):269.CrossRefGoogle Scholar
  28. [28]
    Liu D-R, Jiang Y-S, Gao G-M. Photocatalytic degradation of an azo dye using N-doped NaTaO3 synthesized by one-step hydrothermal process. Chemosphere. 2011;83(11):1546.CrossRefGoogle Scholar
  29. [29]
    Wu X, Li M, Li J, Zhang G, Yin S. A sillenite-type Bi12MnO20 photocatalyst: UV, visible and infrared lights responsive photocatalytic properties induced by the hybridization of Mn 3d and O 2p orbitals. Appl Catal B. 2017;219:132.CrossRefGoogle Scholar
  30. [30]
    Wang K, Li Y, Zhang G, Li J, Wu X. 0D Bi nanodots/2D Bi3NbO7 nanosheets heterojunctions for efficient visible light photocatalytic degradation of antibiotics: enhanced molecular oxygen activation and mechanism insight. Appl Catal B. 2019;240:39.CrossRefGoogle Scholar

Copyright information

© The Nonferrous Metals Society of China and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Chemistry, Faculty of ScienceUniversity of ZanjanZanjanIran

Personalised recommendations