Characterization and photoactivity of Pt/N-doped TiO2 synthesized through a sol–gel process at room temperature
Source abstract
Abstract
The rates of photocatalytic production of H2 by Pt/N-doped TiO2 are significantly affected by the hydrolysis temperature applied during the sol–gel process. Production rates increase as the hydrolysis temperature decreases from 40 to 20 °C. The effects of the hydrolysis temperature on the properties and water-splitting behavior of photocatalysts were investigated. Characterization results showed that hydrolysis temperatures higher than 40 °C induce the formation of the rutile phase and particle agglomeration, reduce the N-dopant content, and decrease the range of visible-light absorption. In this study, a low hydrolysis temperature of about 20 °C is optimal for the sol–gel preparation of N-doped TiO2; this temperature favors the formation of high-purity anatase, small particle size, extensive visible-light absorption, and excellent rates of photocatalytic production of H2 (about 2100 μmol h−1 g−1).
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
Show source-provided references
1. Aita Y, Komatsu M, Yin S, Sato T (2004) Phase-compositional control and visible light photocatalytic activity of nitrogen-doped titania via solvothermal process. J Solid State Chem 177(9):3235–323810.1016/j.jssc.2004.04.048 ↗
2. Ananpattarachai J, Kajitvichyanukul P, Seraphin S (2009) Visible light absorption ability and photocatalytic oxidation activity of various interstitial N-doped TiO2 prepared from different nitrogen dopants. J Hazard Mater 168(1):253–26110.1016/j.jhazmat.2009.02.036 ↗
3. Asahi R, Morikawa T, Ohwaki T, Aoki K, Taga Y (2001) Visible-light photocatalysis in nitrogen-doped titanium oxides. Science 293(5528):269–27110.1126/science.1061051 ↗
4. Ashokkumar M (1998) An overview on semiconductor particulate systems for photoproduction of hydrogen. Int J Hydrog Energy 23(6):427–43810.1016/S0360-3199(97)00103-1 ↗
5. Balat M (2008) Potential importance of hydrogen as a future solution to environmental and transportation problems. Int J Hydrog Energy 33(15):4013–402910.1016/j.ijhydene.2008.05.047 ↗
6. Balat H, Kirtay E (2010) Hydrogen from biomass: present scenario and future prospects. Int J Hydrog Energy 35(14):7416–742610.1016/j.ijhydene.2010.04.137 ↗
7. Bischoff BL, Anderson MA (1995) Peptization process in the sol–gel preparation of porous anatase (TiO2). Chem Mater 7(10):1772–177810.1021/cm00058a004 ↗
8. Chen X, Lou YB, Samia ACS, Burda C, Gole JL (2005) Formation of oxynitride as the photocatalytic enhancing site in nitrogen-doped titania nanocatalysts: comparison to a commercial nanopowder. Adv Funct Mater 15(1):41–4910.1002/adfm.200400184 ↗
9. Chen C, Bai H, S-m Chang, Chang C, Den W (2007) Preparation of N-doped TiO2 photocatalyst by atmospheric pressure plasma process for VOCs decomposition under UV and visible light sources. J Nanopart Res 9(3):365–37510.1007/s11051-006-9141-2 ↗
10. Della Foglia F, Losco T, Piseri P, Milani P, Selli E (2009) Photocatalytic activity of nanostructured TiO2 films produced by supersonic cluster beam deposition. J Nanopart Res 11(6):1339–134810.1007/s11051-009-9691-1 ↗
11. Gandhe AR, Fernandes JB (2005) A simple method to synthesize N-doped rutile titania with enhanced photocatalytic activity in sunlight. J Solid State Chem 178(9):2953–295710.1016/j.jssc.2005.06.034 ↗
12. Gribb AA, Banfield JF (1997) Particle size effects on transformation kinetics and phase stability in nanocrystalline TiO2. Am Mineral 82(7):717–72810.2138/am-1997-7-809 ↗
13. Huang B-S, Wey M-Y (2011) Properties and H2 production ability of Pt photodeposited on the anatase phase transition of nitrogen-doped titanium dioxide. Int J Hydrog Energy 36(16):9479–948610.1016/j.ijhydene.2011.05.064 ↗
14. Huang B-S, Chang F-Y, Wey M-Y (2010) Photocatalytic properties of redox-treated Pt/TiO2 photocatalysts for H2 production from an aqueous methanol solution. Int J Hydrog Energy 35(15):7699–770510.1016/j.ijhydene.2010.05.103 ↗
15. Huang B-S, Su E-C, Wey M-Y (2013) Design of a Pt/TiO2−xNx/SrTiO3 triplejunction for effective photocatalytic H2 production under solar light irradiation. Chem Eng J 223:854–85910.1016/j.cej.2013.03.076 ↗
16. Hurum DC, Agrios AG, Gray KA, Rajh T, Thurnauer MC (2003) Explaining the enhanced photocatalytic activity of Degussa P25 mixed-phase TiO2 using EPR. J Phys Chem B 107(19):4545–454910.1021/jp0273934 ↗
17. Kudo A, Kato H, Tsuji I (2004) Strategies for the development of visible-light-driven photocatalysts for water splitting. Chem Lett 33(12):1534–153910.1246/cl.2004.1534 ↗
18. Li FB, Li XZ (2002) The enhancement of photodegradation efficiency using Pt–TiO2 catalyst. Chemosphere 48(10):1103–111110.1016/S0045-6535(02)00201-1 ↗
19. Liu J, Li H, Zong L, Li Q, Wang X, Zhang M, Yang J (2015) Photocatalytic oxidation of propylene on La and N codoped TiO2 nanoparticles. J Nanopart Res 17(2):1–8
20. Ni M, Leung MK, Leung DY, Sumathy K (2007) A review and recent developments in photocatalytic water-splitting using TiO2 for hydrogen production. Renew Sustain Energy Rev 11(3):401–42510.1016/j.rser.2005.01.009 ↗
21. Pedemonte MM, Visintin A, Capparelli AL (2010) Study of a photostable thin films of TiO2 on titanium. Int J Hydrog Energy 35(11):6069–607310.1016/j.ijhydene.2009.12.067 ↗
22. Shen S, Guo P, Zhao L, Du Y, Guo L (2011) Insights into photoluminescence property and photocatalytic activity of cubic and rhombohedral ZnIn2S4. J Solid State Chem 184(8):2250–225610.1016/j.jssc.2011.06.033 ↗
23. Spadavecchia F, Ardizzone S, Cappelletti G, Oliva C, Cappelli S (2012) Time effects on the stability of the induced defects in TiO2 nanoparticles doped by different nitrogen sources. J Nanopart Res 14(12):1–1210.1007/s11051-012-1301-y ↗
24. Sreethawong T, Laehsalee S, Chavadej S (2009) Use of Pt/N-doped mesoporous-assembled nanocrystalline TiO2 for photocatalytic H2 production under visible light irradiation. Catal Commun 10(5):538–54310.1016/j.catcom.2008.10.029 ↗
25. Sun H, Bai Y, Liu H, Jin W, Xu N, Chen G, Xu B (2008) Mechanism of nitrogen-concentration dependence on pH value: experimental and theoretical studies on nitrogen-doped TiO2. J Phys Chem C 112(34):13304–1330910.1021/jp803519q ↗
26. Tang Z, Zhang J, Cheng Z, Zhang Z (2003) Synthesis of nanosized rutile TiO2 powder at low temperature. Mater Chem Phys 77(2):314–31710.1016/S0254-0584(02)00003-2 ↗
27. Wang C-C, Ying JY (1999) Sol-gel synthesis and hydrothermal processing of anatase and rutile titania nanocrystals. Chem Mater 11(11):3113–312010.1021/cm990180f ↗
28. Wanqin Z, Changlin Y, Qizhe F, Longfu W, Jianchai C, Jimmy CY (2013) Ultrasonic fabrication of N-doped TiO2 nanocrystals with mesoporous structure and enhanced visible light photocatalytic activity. Chin J Chem Catal 34(6):1250–125510.1016/S1872-2067(12)60578-6 ↗
29. Wu D, Long M, Cai W, Chen C, Wu Y (2010) Low temperature hydrothermal synthesis of N-doped TiO2 photocatalyst with high visible-light activity. J Alloys Compd 502(2):289–29410.1016/j.jallcom.2010.04.189 ↗
30. Xu QC, Zhang Y, He Z, Loo SCJ, Tan TTY (2012) An efficient visible and UV-light-activated B-N-codoped TiO2 photocatalytic film for solar depollution prepared via a green method. J Nanopart Res 14(8):1–12
31. Yang X, Salzmann C, Shi H, Wang H, Green ML, Xiao T (2008) The role of photoinduced defects in TiO2 and its effects on hydrogen evolution from aqueous methanol solution. J Phys Chem A 112(43):10784–1078910.1021/jp804305u ↗
32. Yasumori A, Shinoda H, Kameshima Y, Hayashi S, Okada K (2001) Photocatalytic and photoelectrochemical properties of TiO2-based multiple layer thin film prepared by sol–gel and reactive-sputtering methods. J Mater Chem 11(4):1253–125710.1039/b100216n ↗
33. Yu C, Jimmy CY (2009) A simple way to prepare C–N-codoped TiO2 photocatalyst with visible-light activity. Catal Lett 129(3–4):462–47010.1007/s10562-008-9824-7 ↗
34. Zhao Y, Qiu X, Burda C (2008) The Effects of sintering on the photocatalytic activity of N-doped TiO2 nanoparticles. Chem Mater 20(8):2629–263610.1021/cm703043j ↗
35. Zhou X, Lu J, Jiang J, Li X, Lu M, Yuan G, Wang Z, Zheng M, Seo HJ (2014) Simple fabrication of N-doped mesoporous TiO2 nanorods with the enhanced visible light photocatalytic activity. Nanoscale Res Lett 9(1):1–710.1186/1556-276X-9-1 ↗
36. Zou Z, Ye J, Arakawa H (2003) Photocatalytic water splitting into H2 and/or O2 under UV and visible light irradiation with a semiconductor photocatalyst. Int J Hydrog Energy 28(6):663–66910.1016/S0360-3199(02)00159-3 ↗
37. Zou J-J, He H, Cui L, Du H-Y (2007) Highly efficient Pt/TiO2 photocatalyst for hydrogen generation prepared by a cold plasma method. Int J Hydrog Energy 32(12):1762–177010.1016/j.ijhydene.2006.11.030 ↗