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Preparation of PbTiO3-CdS nanocomposite material and its microstructure and photocatalytic properties
Vol 5, Issue 1, 2022
VIEWS - 259 (Abstract) 212 (PDF)
Abstract
In order to explore the influence of the ferroelectric surface on the structure and properties of semiconductor oxides, the growth of CdS nanocrystals was regulated and controlled by taking single-crystal perovskite PbTiO3 nanosheets as the substrate through a simple hydrothermal method. Through composition design, a series of PbTiO3-CdS nanocomposite materials with different loading concentrations were prepared, and their microstructure and photocatalytic properties were systematically analyzed. Studies show that in the prepared product, CdS nanoparticles selectively grow on the surfaces of PbTiO3 nanosheets, and their morphology is affected by the exposed surfaces of PbTiO3 nanosheets. There is a clear interface between the PbTiO3 substrate and CdS nanoparticles. The concentration of the initial reactant and the time of hydrothermal reaction also significantly affect the crystal morphology of CdS. Photocatalysis studies have shown that the prepared PbTiO3-CdS nanocomposite material has a significant degradation effect on 10 mg/L of Rhodamine B aqueous solution. The degradation efficiency rises with the increase of CdS loading concentration. When degrading 10 mg/L Rhodamine B aqueous solution, the PbTiO3-CdS sample with a mass fraction of 3% can reach a degradation rate of 72% within 120 min.
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1. Niu S, Peng K, Kou J. Introduction to the photoelectric materials of nanostructure．Journal of Liaoning Normal University (Natural Science Edition) 2003; 26(1): 63–67.
2. Cao J, Wu B, Peng J, et al. Copper-copper iodide hybrid nanostructure as hole transport material for efficient and stable inverted perovskite solar cells. Science China Chemistry 2019; 62(3): 363–369.
3. Zhang M, Chen H, Yang X, et al. The development and prospect of nanometer materials. Missiles and Space Vehicles 2000; (3): 11–16.
4. Shirane G, Hoshino S, Suzuki K. X-ray study of the phase transition in lead titanate. Physical Review 1950; 80(6): 1105.
5. Yin S. Study on the surface, interface and properties of single-crystal nanostructures of perovskite ferroelectric oxide [PhD thesis]. Hangzhou: Zhejiang University; 2015. p. 35–46．
6. Qiu C, Wang B, Zhang N, et al. Transparent ferroelectric crystals with ultrahigh piezoelectricity. Nature 2020; 577(7790): 350–354.
7. Jiang S. Study on preparation, microstructure and applications of perovskite oxide ferroelectric nanocomposite materials [PhD thesis]. Hangzhou: Zhejiang University; 2016. p. 68–87.
8. Li X, Qiu T, Zhang J, et al. Terahertz field-induced ferroelectricity in quantum paraelectric SrTiO3. Science 2019; 364(6445): 1079–1082.
9. Zhang M, Wang K, Du Y, et al. High and temperature-insensitive piezoelectric strain in alkali niobate lead-free perovskite. Journal of the American Chemical Society 2017; 139(10): 3889–3895.
10. Fujishima A, Honda K. Electrochemical photolysis of water at a semiconductor electrode. Nature 1972; 238(5358): 37–38.
11. Molaei MJ. The optical properties and solar energy conversion applications of carbon quantum dots: A review. Solar Energy 2020; 196: 549–566.
12. Feng Z, Zeng L, Zhang Q, et al. In situ preparation of g-C3N4/Bi4O5I2 complex and its elevated photoactivity in Methyl Orange degradation under visible light. Journal of Environmental Sciences 2020; 87: 149–162.
13. Wang T, Nie C, Ao Z, et al. Recent progress in g-C3N4 quantum dots: Synthesis, properties and applications in photocatalytic degradation of organic pollutants. Journal of Materials Chemistry A 2020; 8(2): 485–502.
14. Jamil A, Bokhari TH, Javed T, et al. Photocatalytic degradation of disperse dye Violet-26 using TiO2 and ZnO nanomaterials and process variable optimization. Journal of Materials Research and Technology 2020; 9(1): 1119–1128.
15. Ghasemipour P, Fattahi M, Rasekh B, et al. Developing the ternary ZnO doped MoS2 nanostructures grafted on CNT and Reduced Graphene Oxide (RGO) for photocatalytic degradation of aniline. Scientific Reports 2020; 10: 4414.
16. Ren L, Zhou W, Sun B, et al. Defects-engineering of magnetic γ-Fe2O3 ultrathin nanosheets/mesoporous black TiO2 hollow sphere heterojunctions for efficient charge separation and the solar-driven photocatalytic mechanism of tetracycline degradation. Applied Catalysis B: Environmental 2019; 240: 319–328.
17. Deng F, Lu X, Luo Y, et al. Novel visible-light-driven direct Z-scheme CdS/CuInS2 nanoplates for excellent photocatalytic degradation performance and highly-efficient Cr (Ⅵ) reduction. Chemical Engineering Journal 2019; 361: 1451–1461.
18. Yang J, Yan H, Wang X, et al. Roles of cocatalysts in Pt-PdS/CdS with exceptionally high quantum efficiency for photocatalytic hydrogen production. Journal of Catalysis 2012; 290: 151–157.
19. Gao D, Liu W, Xu Y, et al. Core-shell Ag@Ni cocatalyst on the TiO2 photocatalyst: One-step photoinduced deposition and its improved H-2-evolution activity. Applied Catalysis B: Environmental 2020; 260: 118190.
20. Li J, Cushing SK, Zheng P, et al. Solar hydrogen generation by a CdS-Au-TiO2 sandwich nanorod array enhanced with Au nanoparticle as electron relay and plasmonic photosensitizer. Journal of the American Chemical Society 2014; 136(23): 8438–8449.
21. Chao C, Ren Z, Zhu Y, et al. Self-templated synthesis of single-crystal and single-domain ferroelectric nanoplates. Angewandte Chemie International Edition 2012; 51(37): 9283–9287.
22. Zhong W, Tu W, Feng S, et al. Photocatalytic H2 evolution on CdS nanoparticles by loading FeSe nanorods as co-catalyst under visible light irradiation. Journal of Alloys and Compounds 2019; 772: 669–674.
23. Ye K, Li Y, Yang H, et al. An ultrathin carbon layer activated CeO2 heterojunction nanorods for photocatalytic degradation of organic pollutants. Applied Catalysis B: Environmental 2019; 259: 118085.
24. Huang X, Lei R, Yuan J, et al. Insight into the piezo-photo coupling effect of PbTiO3/CdS composites for piezo-photocatalytic hydrogen production. Applied Catalysis B: Environmental 2021; 282: 119586.
25. Raza N, Raza W, Gul H, et al. Solar-light-active silver phosphate/titanium dioxide/silica heterostructures for photocatalytic removal of organic dye. Journal of Cleaner Production 2020; 254: 120031.
26. Jiang S, Ren Z, Li M, et al. Single-crystal heterostructured PbTiO3/CdS nanorods with enhanced visible-light-driven photocatalytic performance. RSC Advances 2015; 5(67): 54454–54459.
DOI: https://doi.org/10.24294/can.v5i1.1409
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