A Review of Reduced Electron/Hole Recombination in Coupled Photocatalysts for Dyes Degradation

Document Type : Review paper

Authors

1 Department of Nanotechnology, Faculty of New Sciences and Technologies, Semnan University, P. O. Code: 35131-19111, Semnan, Iran.

2 Department of Chemical Engineerign, Amirkabir University of Technology, P. O. Box: 15875-4413, Tehran, Iran.

Abstract

Organic dyes have attracted a lot of attention due to their long-term environmental toxicity and short-term damage to health. The process of photocatalysts with the use of semiconductors for efficient use of solar energy in the degradation of dye pollutants has received much attention for environmental improvement. Electron transfer is the most important and fundamental step in photocatalysts processes. The efficiency of electron transport is the function of the location energy level of valence layer and the conduction layer relative to the reduction potential of the adsorbed particles on the catalyst. One of the methods of preventing recombination of electrons/holes is direct conductivity of electron and holes to the other catalyst. This is possible using heterojunction photocatalysts with different valence and conduction band potentials. In other words, the coupling of two semiconductors, the valence and conduction bands, have different energy levels, causing more effective separation. The purpose of this study is to investigate different Load transmission mechanisms in pair and p-n junction photocatalysts.

Keywords

Main Subjects

References

  1. R. Nejat, M. Hoseinzade, " Investigation of the Effect of H3PW6Mo6O40/g-C3N4 Photocatalyst in the Degradation of Rhodamine B Dye Under Visible Light Irradiation", Journal of Color Science and Technology, 16, 3, 225-236, 2022.
  2. B. Chang, D. Guan, Y. Tian, Z. Yang, X. Dong,"Convenient synthesis of porous carbon nanospheres with tunable pore structure and excellent adsorption capacity". J. Hazard. Mater. 262. 256-64, 2013.
  3. N. Basavaraj, A. Sekar, R. Yadav, "Review on green carbon dot-based materials for the photocatalytic degradation of dyes: Fundamentals and future perspective". Mater. Adv. 2021.
  4. A. Rafiq, M. Ikram, S. Ali, F. Niaz, M. Khan, Q. Khan, M. Maqbool, "Photocatalytic degradation of dyes using semiconductor photocatalysts to clean industrial water pollution". J. Ind. Eng. Chem. 97. 111-28, 2021.
  5. F. Saadati, N. Keramati, M. Mehdipour Ghazi, "Influence of parameters on the photocatalytic degradation of tetracycline in wastewater: a review", Crit. Rev. Environ. Sci. Technol. 46, 757-82, 2016.
  6. D. Friedmann. "A general overview of heterogeneous photocatalysis as a remediation technology for wastewaters containing pharmaceutical compounds",Water, 14, 3588, 2022.
  7. H. Yan, X. Wang, M. Yao, X. Yao, "Band structure design of semiconductors for enhanced photocatalytic activity: The case of TiO2", Prog. Nat. Sci. 23(4). 402-407, 2013.
  8. M. Ghaemizade, M. Mehrizi, "Application of Photocatalysts and Their Effective Parameters in the Treatment of Colored Wastewaters", Journal of Studies in Color World, 9. 2, 9-20, 2019.
  9. Z. Kaeimi, A, Alahvardi, F, Osheni, "Investigation on the Removal of Dyes from Wastewater Using Alumina Composite Nano Adsorbent", Journal of Studies in Color World, 10, 2, 41-59, 2020.
  10. S. Wang, D. Li, C. Sun, S. Yang, Y. Guan, H. He. "Highly efficient photocatalytic treatment of dye wastewater via visible-light-driven AgBr–Ag3PO4/MWCNTs", J. Mol. Catal. A: Chem. 383. 128-36, 2014.
  11. M. Asgharian, M. Mehdipourghazi, B. Khoshandam, N. Keramati." Photocatalytic degradation of methylene blue with synthesized rGO/ZnO/Cu", Chem. Phys. Lett. 719. 1-7, 2019.
  12. X. Jia, J. Cao, H. Lin, Y. Chen, W. Fu, S. Chen. "One-pot synthesis of novel flower-like BiOBr0.9I0.1/BiOI heterojunction with largely enhanced electron-hole separation efficiency and photocatalytic performances". J. Mol. Catal. A: Chem, 409, 94-101, 2015.
  13. H. Li, Z. Xia, J. Chen, L. Lei, J. Xing, "Constructing ternary CdS/reduced graphene oxide/TiO2 nanotube arrays hybrids for enhanced visible-light-driven photoelectrochemical and photocatalytic activity", Appl. Catal. B, 168. 105-13, 2015.
  14. S. Shi, MA. Gondal, SG. Rashid, Q. Qi, AA. Al-Saadi, ZH. Yamani, Y. Sui, Q. Xu, K. Shen. "Synthesis of g-C3N4/BiOClxBr1−x hybrid photocatalysts and the photoactivity enhancement driven by visible light", Colloids Surf., A. 461. 202-11, 2014.
  15. S. Song, B. Cheng, N. Wu, A. Meng, S. Cao, J. Yu. "Structure effect of graphene on the photocatalytic performance of plasmonic Ag/Ag2CO3-rGO for photocatalytic elimination of pollutants", Appl. Catal., B, 181. 71-8, 2016.
  16. W. Lu, T. Xu, Y. Wang, H. Hu, N. Li, X. Jiang, W. Chen. "Synergistic photocatalytic properties and mechanism of g-C3N4 coupled with zinc phthalocyanine catalyst under visible light irradiation", Appl. Catal., B, 180. 20-8, 2016.
  17. L. Cheng, Y. Kang, "Bi5O7I/Bi2O3 composite photocatalyst with enhanced visible light photocatalytic activity", Catal. Commun. 72. 16-9, 2015.
  18. W. Chen, GR. Duan, TY. Liu, SM. Chen, XH. Liu. "Fabrication of Bi2MoO6 nanoplates hybridized with g-C3N4 nanosheets as highly efficient visible light responsive heterojunction photocatalysts for Rhodamine B degradation", Mater. Sci. Semicond. Process. 35. 45-54, 2015.
  19. N. Wetchakun, S. Chaiwichain, B. Inceesungvorn, K. Pingmuang, S. Phanichphant, AI. Minett, J. Chen. "BiVO4/CeO2 nanocomposites with high visible-light-induced photocatalytic activity". ACS Appl. Mater. Interfaces, 4, 3718-23, 2012.
  20. G. Yang, W. Yan, Q. Zhang, S. Shen, S. Ding. "One-dimensional CdS/ZnO core/shell nanofibers via single-spinneret electrospinning: tunable morphology and efficient photocatalytic hydrogen production", Nanoscale Adv. 5, 12432-12439, 2013.
  21. L. Sinatra, AP. LaGrow, W. Peng, AR. Kirmani, A. Amassian, H. Idriss, OM. Bakr. "A Au/Cu2O–TiO2 system for photo-catalytic hydrogen production. A pn-junction effect or a simple case of in situ reduction? ", J. Catal. 322. 109-17, 2015.
  22. J. Cao, X. Li, H. Lin, S. Chen, X. Fu. "In situ preparation of novel p–n junction photocatalyst BiOI/(BiO)2CO3 with enhanced visible light photocatalytic activity", J. Hazard. Mater. 239. 316-24, 2012.
  23. N. Mohaghegh, E. Rahimi, MR. Gholami. "Ag3PO4/BiPO4 p–n heterojunction nanocomposite prepared in room-temperature ionic liquid medium with improved photocatalytic activity", Mater. Sci. Semicond. Process. 39. 506-14, 2015.
  24. Y. Liu, G. Li, R. Mi, C. Deng, P. Gao. "An environment-benign method for the synthesis of p-NiO/n-ZnO heterostructure with excellent performance for gas sensing and photocatalysis", Sens. Actuators, B. 191. 537-44, 2014.
  25. E. Abdelkader, L. Nadjia, B. Ahmed. "Preparation and characterization of novel CuBi2O4/SnO2 p–n heterojunction with enhanced photocatalytic performance under UVA light irradiation". Sens. Actuators, B. 27, 76-91, 2015.
  26. A. Elaziouti, N. Laouedj, A. Bekka, RN. Vannier. "Preparation and characterization of p–n heterojunction CuBi2O4/CeO2 and its photocatalytic activities under UVA light irradiation". Sens. Actuators, B. 27, 120-35, 2015.

 

Journal of Studies in Color World
Volume 12, Issue 4
February 2023
Pages 293-314

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History

  • Receive Date: 02 November 2022
  • Revise Date: 18 January 2023
  • Accept Date: 18 January 2023

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