Effect of calcination process on the gas phase photodegradation by CuO-Cu2O/TiO2 nanocomposite photocatalyst

Document Type : Research Paper

Authors

1 aSchool of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

2 University of Tehran

3 Instituto de Catálisis y Petroleoquímica, CSIC. C/ Marie Curie, 2, 28049, Madrid, Spain.

Abstract

A series of CuO-Cu2O/TiO2 nanocomposite samples were prepared by the sol-gel method. Before applying the sol-gel method, the Cu(OH)2 nanostructure on Cu powders were formed by in-situ solution treatment. The samples were characterized through some techniques and the photocatalytic performance of CuO-Cu2O/TiO2 nanocomposites for gas-phase 2-propanol photo-oxidation under UV and sunlight type illumination was evaluated. The effect of calcination process on the synthesis and photocatalytic activity of the samples was studied. The calcination process plays an important role in improving the properties of nanocomposite powders. The results showed that the nanocomposite formed successfully in desirable structure and morphology. The nanocomposite is composed by the mixture of TiO2 particle with an average particle size of about 300 nm and the copper oxide nanorods with a diameter of 50-100 nm. In this nanocomposite, the copper oxides nanostructures and TiO2 particles are the main components to form the heterojunction structure and provide enhanced photocatalytic performance compared to the TiO2 sample. The reaction rate of the most active nanocomposite sample prepared at the optimum conditions is almost 6 times larger than the TiO2 references.

Keywords

References

1. Palmisano G, García-López E, Marcì G, Loddo V, Yurdakal S, Augugliaro V, et al. Advances in selective conversions by heterogeneous photocatalysis. Chemical Communications. 2010;46(38):7074.
2. Ajmal A, Majeed I, Malik RN, Iqbal M, Nadeem MA, Hussain I, et al. Photocatalytic degradation of textile dyes on Cu2O-CuO/TiO2 anatase powders. Journal of Environmental Chemical Engineering. 2016;4(2):2138-46.
3. Deng X, Wang C, Shao M, Xu X, Huang J. Low-temperature solution synthesis of CuO/Cu2O nanostructures for enhanced photocatalytic activity with added H2O2: synergistic effect and mechanism insight. RSC Advances. 2017;7(8):4329-38.
4. Valles-Pérez BY, Badillo-Ávila MA, Torres-Delgado G, Castanedo-Pérez R, Zelaya-Ángel O. Photocatalytic activity of ZnO + CuO thin films deposited by dip coating: coupling effect between oxides. Journal of Sol-Gel Science and Technology. 2020;93(3):517-26.
5. Scuderi V, Amiard G, Boninelli S, Scalese S, Miritello M, Sberna PM, et al. Photocatalytic activity of CuO and Cu2O nanowires. Materials Science in Semiconductor Processing. 2016;42:89-93.
6. Chen J, Liu X, Zhang H, Liu P, Li G, An T, et al. Soft-template assisted synthesis of mesoporous CuO/Cu 2 O composite hollow microspheres as efficient visible-light photocatalyst. Materials Letters. 2016;182:47-51.
7. Kubacka A, Muñoz-Batista MJ, Fernández-García M, Obregón S, Colón G. Evolution of H2 photoproduction with Cu content on CuO -TiO2 composite catalysts prepared by a microemulsion method. Applied Catalysis B: Environmental. 2015;163:214-22.
8. Liu L, Yang W, Li Q, Gao S, Shang JK. Synthesis of Cu2O Nanospheres Decorated with TiO2 Nanoislands, Their Enhanced Photoactivity and Stability under Visible Light Illumination, and Their Post-illumination Catalytic Memory. ACS Applied Materials & Interfaces. 2014;6(8):5629-39.
9 Ren H, Koshy P, Chen W-F, Qi S, Sorrell CC. Photocatalytic materials and technologies for air purification. Journal of Hazardous Materials. 2017;325:340-66.
10. Nuo Peh CK, Wang X-Q, Ho GW. Increased photocatalytic activity of CuO/TiO 2 through broadband solar absorption heating under natural sunlight. Procedia Engineering. 2017;215:171-9.
11. Kim HR, Razzaq A, Grimes CA, In S-I. Heterojunction p-n-p Cu 2 O/S-TiO 2 /CuO: Synthesis and application to photocatalytic conversion of CO 2 to methane. Journal of CO2 Utilization. 2017;20:91-6.
12. Luna AL, Valenzuela MA, Colbeau-Justin C, Vázquez P, Rodriguez JL, Avendaño JR, et al. Photocatalytic degradation of gallic acid over CuO–TiO2 composites under UV/Vis LEDs irradiation. Applied Catalysis A: General. 2016;521:140-8.
13. Tian X, Li S, Cao Y, Xu Y, Zhang G. Preparation, optical property, and photocatalytic activity of cubic Cu2O/amorphous TiO2 and spheric CuO/TiO2 core–shell nanocomposites. Materials Letters. 2014;131:86-9.
14. Muñoz-Batista MJ, Caudillo-Flores U, Ung-Medina F, del Carmen Chávez-Parga M, Cortés JA, Kubacka A, et al. Gas phase 2-propanol degradation using titania photocatalysts: Study of the quantum efficiency. Applied Catalysis B: Environmental. 2017;201:400-10.
15. Mamba G, Pulgarin C, Kiwi J, Bensimon M, Rtimi S. Synchronic coupling of Cu2O(p)/CuO(n) semiconductors leading to Norfloxacin degradation under visible light: Kinetics, mechanism and film surface properties. Journal of Catalysis. 2017;353:133-40.
16. Murali DS, Kumar S, Choudhary RJ, Wadikar AD, Jain MK, Subrahmanyam A. Synthesis of Cu2O from CuO thin films: Optical and electrical properties. AIP Advances. 2015;5(4):047143.
17. Rouquerol J, Avnir D, Fairbridge CW, Everett DH, Haynes JM, Pernicone N, et al. Recommendations for the characterization of porous solids (Technical Report). Pure and Applied Chemistry. 1994;66(8):1739-58.
18. Xu L, Xu H-Y, Wang F, Zhang F-J, Meng Z-D, Zhao W, et al. Microwave-Assisted Synthesis of Flower-like and Plate-like CuO Nanopowder and Their Photocatalytic Activity for Polluted Lake Water. Journal of the Korean Ceramic Society. 2012;49(2):151-4.
19. Ansari F, Sheibani S, Fernández-García M. Characterization and performance of Cu2O nanostructures on Cu wire photocatalyst synthesized in-situ by chemical and thermal oxidation. Journal of Materials Science: Materials in Electronics. 2019;30(14):13675-89.
20. Shafei A, Sheibani S. Visible light photocatalytic activity of Cu doped TiO2-CNT nanocomposite powder prepared by sol–gel method. Materials Research Bulletin. 2019;110:198-206.
21. Hu Z, Wang X, Dong H, Li S, Li X, Li L. Efficient photocatalytic degradation of tetrabromodiphenyl ethers and simultaneous hydrogen production by TiO2-Cu2O composite films in N2 atmosphere: Influencing factors, kinetics and mechanism. Journal of Hazardous Materials. 2017;340:1-15.
22. Khaki MRD, Shafeeyan MS, Raman AAA, Daud WMAW. Application of doped photocatalysts for organic pollutant degradation - A review. Journal of Environmental Management. 2017;198:78-94.
23. Wang P, Wen X, Amal R, Ng YH. Introducing a protective interlayer of TiO2 in Cu2O–CuO heterojunction thin film as a highly stable visible light photocathode. RSC Advances. 2015;5(7):5231-6.
24. Dasineh Khiavi N, Katal R, Kholghi Eshkalak S, Masudy-Panah S, Ramakrishna S, Jiangyong H. Visible Light Driven Heterojunction Photocatalyst of CuO–Cu2O Thin Films for Photocatalytic Degradation of Organic Pollutants. Nanomaterials. 2019;9(7):1011.
25. Lu Y, Zhang X, Chu Y, Yu H, Huo M, Qu J, et al. Cu2O nanocrystals/TiO2 microspheres film on a rotating disk containing long-afterglow phosphor for enhanced round-the-clock photocatalysis. Applied Catalysis B: Environmental. 2018;224:239-48.
26. Muñoz-Batista MJ, Kubacka A, Hungría AB, Fernández-García M. Heterogeneous photocatalysis: Light-matter interaction and chemical effects in quantum efficiency calculations. Journal of Catalysis. 2015;330:154-66.
27. Araña J, Alonso AP, Rodríguez JMD, Colón G, Navío JA, Peña JP. FTIR study of photocatalytic degradation of 2-propanol in gas phase with different TiO2 catalysts. Applied Catalysis B: Environmental. 2009;89(1-2):204-13.
28. Xiong D, Chang H, Zhang Q, Tian S, Liu B, Zhao X. Preparation and characterization of CuCrO2/TiO2 heterostructure photocatalyst with enhanced photocatalytic activity. Applied Surface Science. 2015;347:747-54.
Journal of Ultrafine Grained and Nanostructured Materials
Volume 53, Issue 1
June 2020
Pages 23-30

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History

  • Receive Date: 01 June 2020
  • Revise Date: 16 June 2020
  • Accept Date: 20 June 2020

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