Molten-salt synthesis of Cu–SrTiO3/TiO2 nanotube heterostructures for photocatalytic water splitting
Source abstract
Abstract
A series of Cu-loaded SrTiO3/TiO2 nanotube heterostructures were synthesized by a facile molten salts method and an impregnation-calcination method. Through adjusting the molar ratio of Sr/Ti, the photocatalytic performance of the samples changed regularly. When Sr/Ti = 0.2, the catalyst showed the highest performance in water splitting and the H2 generation amount was 0.597 mmol under UV irradiation for 8 h. The enhanced performance of Cu-loaded SrTiO3/TiO2 nanotubes could be attributed to the heterostructures, the small crystallite size, and the reduced band gap inside them.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · TiO2 Photocatalysis and Solar Cells
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (59)
Show source-provided references
1. International energy agency in world energy outlook 2011 (2011) http://www.worldenergyoutlook.org
2. Gust D, Moore TA, Moore AL (2001) Mimicking photo synthetic solar energy transduction. Acc Chem Res 34(1):40–4810.1021/ar9801301 ↗
3. Lewis NS, Nocera DG (2006) Powering the planet: chemical challenges in solar energy utilization. Proc Natl Acad Sci 103(43):15729–1573510.1073/pnas.0603395103 ↗
4. Kamat PV (2007) Meeting the clean energy demand: nanostructure architectures for solar energy conversion. J Phys Chem C 111(7):2834–286010.1021/jp066952u ↗
5. Linic S, Christopher P, Ingram DB (2011) Plasmonic-metal nanostructures for efficient conversion of solar to chemical energy. Nat Mater 10:911–92110.1038/nmat3151 ↗
6. Sun T, Liu EZ, Liang XH, Hu XY, Fan J (2015) Enhanced hydrogen evolution from water splitting using Fe-Ni codoped and Ag deposited anatase TiO2 synthesized by solvothermal method. Appl Surf Sci 347:696–70510.1016/j.apsusc.2015.04.162 ↗
7. Mali MG, An S, Liou M, Al-Deyab SS, Yoon SS (2015) Photoelectrochemical solar water splitting using electrospun TiO2 nanofibers. Appl Surf Sci 328:109–11410.1016/j.apsusc.2014.12.022 ↗
8. Yue XY, Zhang JY, Yan FP, Wang X, Huang F (2014) A situ hydrothermal synthesis of SrTiO3/TiO2 heterostructure nanosheets with exposed (001) facets for enhancing photocatalytic degradation activity. Appl Surf Sci 319:68–7410.1016/j.apsusc.2014.07.100 ↗
9. Zheng YH, Zheng LR, Zhan YY, Lin XY, Zheng Q, Wei KM (2007) Ag/ZnO heterostructure nanocrystals: synthesis, characterization, and photocatalysis. Inorg Chem 46(17):6980–698610.1021/ic700688f ↗
10. Xiao FX (2012) Construction of highly ordered ZnO-TiO2 nanotube arrays (ZnO/TNTs) heterostructure for photocatalytic application. ACS Appl Mater Interfaces 4(12):7055–706310.1021/am302462d ↗
11. Zhou WJ, Yin ZY, Du YP, Huang X, Zeng ZY, Fan ZX, Liu H, Wang JY, Zhang H (2013) Synthesis of few-layer MoS2 nanosheet-coated TiO2 nanobelt heterostructures for enhanced photocatalytic activities. Small 9(1):140–14710.1002/smll.201201161 ↗
12. Amirav L, Alivisatos AP (2010) Photocatalytic hydrogen production with tunable nanorod heterostructures. J Phys Chem Lett 1(7):1051–105410.1021/jz100075c ↗
13. Chen X, Mao SS (2007) Titanium dioxide nanomaterials: synthesis, properties, modifications, and applications. Chem Rev 107(7):2891–295910.1021/cr0500535 ↗
14. Fujishima A, Honda K (1971) Electrochemical evidence for the mechanism of the primary stage of photosynthesis. Bull Chem Soc Jpn 44(4):1148–115010.1246/bcsj.44.1148 ↗
15. Fujishima A, Honda K (1972) Electrochemical photolysis of water at a semiconductor electrode. Nature 238(5358):37–3810.1038/238037a0 ↗
16. Hoffmann MR, Martin ST, Choi W, Bahnemann DW (1995) Environmental applications of semiconductor photocatalysis. Chem Rev 95(1):69–9610.1021/cr00033a004 ↗
17. Linsebigler L, Lu GQ, Yates TJ (1995) Photocatalysis on TiO2 surfaces: principles, mechanisms, and selected results. Chem Rev 95(3):735–75810.1021/cr00035a013 ↗
18. Fox MA, Dulay MT (1993) Heterogeneous photocatalysis. Chem Rev 93(1):341–35710.1021/cr00017a016 ↗
19. Yoko T, Yuasa A, Kamia K, Sakka SJ (1991) Sol-gel-derived TiO2 film semiconductor electrode for photocleavage of water preparation and effects of post heating treatment on the photoelectron chemical behaviour. Electrochem Soc 138(8):2279–228510.1149/1.2085961 ↗
20. Hagfeldt A, Gratzel M (1995) Light-induced redox reactions in nanocrystalline systems. Chem Rev 95(1):49–6810.1021/cr00033a003 ↗
21. Aurian-Blajeni B, Halman M, Manassen JJ (1980) Photo reduction of carbon dioxide and water into formaldehyde and methanol on semiconductor materials. Sol Energy 25(2):165–17010.1016/0038-092X(80)90472-7 ↗
22. Cristiani C, Belloto M, Forzatti P, Bregani F (1993) On the morphological properties of tungsta-titania de-NOxing catalysts. J Mater Res 8(8):2019–202510.1557/JMR.1993.2019 ↗
23. Anderson S, Collen B, Kuylenstierna U, Magnelli A (1957) Phase analysis studies on the titanium-oxygen system. Acta Chem Scand 11(10):1641–165210.3891/acta.chem.scand.11-1641 ↗
24. Moreno J, Dominguez JM, Montoya A, Vicente L, Viveros T (1995) Synthesis and characterization of MTiO3 (M = Mg, Ca, Sr, Ba) sol-gel. J Mater Chem 5(3):509–51210.1039/jm9950500509 ↗
25. Domen K, Kudo A, Onishi T (1986) Photocatalytic decomposition of water into H2 and O2, over NiO-SrTiO3, powder. 1. Structure of the catalyst. J Phys Chem 90(2):292–29510.1021/j100274a018 ↗
26. Ahuja S, Kutty TRN (1996) Nanoparticles of SrTiO3 prepared by gel to crystallite conversion and their photocatalytic activity in the mineralization of phenol. J Photochem Photobiol A 97(1–2):99–10710.1016/1010-6030(96)04324-9 ↗
27. Diamant Y, Chen SG, Melamed O, Zaban A (2003) Core-shell nanoporous electrode for dye sensitized solar cells: the effect of the SrTiO3 shell on the electronic properties of the TiO2 core. J Phys Chem B 107(9):1977–198110.1021/jp027827v ↗
28. Zhang J, Bang JH, Tang CC, Kamat PV (2010) Tailored TiO2-SrTiO3 heterostructure nanotube arrays for improved photoelectrochemical performance. ACS Nano 4(1):387–39510.1021/nn901087c ↗
29. Cao TP, Li YJ, Wang CH, Shao CL, Liu YC (2011) A facile in situ hydrothermal method to SrTiO3/TiO2 nanofiber heterostructures with high photocatalytic activity. Langmuir 27(6):2946–295210.1021/la104195v ↗
30. Zhong YQ, Ueno K, Mori Y, Oshikiri T, Misawa H (2015) Plasmon-enhanced water splitting utilizing the heterojunction synergistic effect between SrTiO3 and rutile-TiO2. Chem Lett 44(5):618–62010.1246/cl.150028 ↗
31. Matsui N, Anzai K, Akamatsu N, Nakagawa K, Ikenaga N, Suzuki T (1999) Reaction mechanisms of carbon dioxide reforming of methane with Ru-loaded lanthanum oxide catalyst. Appl Catal A 179(1–2):247–25610.1016/S0926-860X(98)00323-8 ↗
32. Subramanian V, Roeder RK, Wolf EE (2006) Synthesis and UV-visible-light photoactivity of noble-metal-SrTiO3 composites. Ind Eng Chem Res 45(7):2187–219310.1021/ie050693y ↗
33. Hisatomi T, Kubota J, Domen K (2014) Recent advances in semiconductors for photocatalytic and photoelectronchemical water splitting. Chem Soc Rev 43:7520–753510.1039/C3CS60378D ↗
34. Ikeda S, Hirao K, Ishino S, Matsumura M, Ohtani B (2006) Preparation of platinized strontium titanate covered with hollow silica and its activity for overall water splitting in a novel phase-boundary photocatalytic system. Catal Today 117(1–3):343–34910.1016/j.cattod.2006.05.037 ↗
35. Lo CC, Huang CW, Liao CH, Wu JCS (2010) Novel twin reactor for separate evolution of hydrogen and oxygen in photocatalytic water splitting. Int J Hydrog Energy 35(4):1523–152910.1016/j.ijhydene.2009.12.032 ↗
36. Yan JH, Zhu YR, Tang YG, Zheng SQ (2009) Nitrogen-doped SrTiO3/TiO2 composite photocatalysts for hydrogen production under visible light irradiation. J Alloy Compd 472(1–2):429–43310.1016/j.jallcom.2008.04.078 ↗
37. Bui DN, Mu J, Wang L, Kang SZ, Li XQ (2013) Preparation of Cu-loaded SrTiO3 nanoparticles and their photocatalytic activity for hydrogen evolution from methanol aqueous solution. Appl Surf Sci 274:328–33310.1016/j.apsusc.2013.03.054 ↗
38. Yu WW, Yuan SJ, Li YG, Zhang QH, Wang HZ (2011) Preparation of TiO2 nanoparticle/nanotube composites via a vapor hydrolysis method and their photocatalytic activities. ISRN Nanotechnol. doi: 10.5402/2011/582534
39. Wang TX, Liu SZ, Chen J (2011) Molten salt synthesis of SrTiO3 nanocrystals using nanocrystalline TiO2 as a precursor. Powder Technol 205(1–3):289–29110.1016/j.powtec.2010.08.068 ↗
40. Jin ZL, Zhang XJ, Li YX, Li SB, Lu GX (2007) 5.1 % apparent quantum efficiency for stable hydrogen generation over eosin-sensitized CuO/TiO2 photocatalyst under visible light irradiation. Catal Commun 8(8):1267–127310.1016/j.catcom.2006.11.019 ↗
41. Li LK, Xu LL, Shi WD, Guan JG (2013) Facile preparation and size-dependent photocatalytic activity of Cu2O nanocrystals modified titania for hydrogen evolution. Int J Hydrog Energy 38(2):816–82210.1016/j.ijhydene.2012.10.064 ↗
42. Bandara J, Udawatta CPK, Rajapakse CSK (2005) Highly stable CuO incorporated TiO2 catalyst for photocatalytic hydrogen production from H2O. Photochem Photobiol Sci 4:857–86110.1039/b507816d ↗
43. Pu SB, Inui T (1996) Influence of crystallite size on catalytic performance of HZSM-5 prepared by different methods in 2,7-dimethylnaphthalene isomerization. Zeolites 17(4):334–33910.1016/0144-2449(96)00083-8 ↗
44. Kim DS, Han SJ, Kwak SY (2007) Synthesis and photocatalytic activity of mesoporous TiO2 with the surface area, crystallite size, and pore size. J Colloid Interfaces Sci 316(1):85–9110.1016/j.jcis.2007.07.037 ↗
45. Zhang Y, Lin S, Zhang W, Ge H, Li G, Zhang Y, Qi FY, Song XM (2014) Synthesis of a tailored SrTiO3-TiO2 microspherical photocatalyst and its photo generated charge properties. RSC Adv 4:3226–323210.1039/C3RA46101G ↗
46. Akdogan EK, Brennan RE, Allahverdi M, Safari A (2006) Effects of molten salt synthesis (MSS) parameters on the morphology of Sr3Ti2O7 and SrTiO3 seed crystals. J Electroceram 16(2):159–16510.1007/s10832-006-6243-2 ↗
47. Li HL, Du ZN, Wang GL, Zhang YC (2010) Low temperature molten salt synthesis of SrTiO3 submicron crystallites and nanocrystals in the eutectic NaCl-KCl. Mater Lett 64(3):431–43410.1016/j.matlet.2009.11.040 ↗
48. Cai Z, Xing X, Li L, Xu Y (2008) Molten salt synthesis of lead lanthanum zirconate titanate ceramic powders. J Alloy Compd 454(1–2):466–47010.1016/j.jallcom.2006.12.128 ↗
49. Essick JM, Mather RT (1993) Characterization of a bulk semiconductor’s band gap via a near-absorption edge optical transmission experiment. Am J Phys 61(7):646–64910.1119/1.17173 ↗
50. Mártil I, Gonzales Días G (1992) Undergraduate laboratory experiment: measurement of the complex refractive index and the band gap of a thin film semiconductor. Am J Phys 60(83):83–8610.1119/1.17049 ↗
51. Sconza A, Torzo G (1994) Spectroscopic measurement of the semiconductor energy gap. Am J Phys 62(8):732–73710.1119/1.17507 ↗
52. Huang H, Yue ZK, Song YJ, Du YK, Yang P (2012) Mesoporous tungsten oxides as photocatalysts for O2 evolution under irradiation of visible light. Mater Lett 88:57–6010.1016/j.matlet.2012.08.018 ↗
53. Wang JP, Wang ZY, Huang BB, Ma YD, Liu YY, Qin XY, Zhang XY, Dai Y (2012) Oxygen vacancy induced band-gap narrowing and enhanced visible light photocatalytic activity of ZnO. ACS Appl Mater Inter 4(8):4024–403010.1021/am300835p ↗
54. Zhou J, Yin L, Li HR, Liu ZY, Wang JX, Duan K, Qu SX, Weng J, Feng B (2015) Heterojunction of SrTiO3/TiO2 nanotubes with dominant (001) facets: synthesis, formation mechanism and photoelectrochemical properties. Mat Sci Semicond Proc 40:107–11610.1016/j.mssp.2015.06.023 ↗
55. Teng F, Chen MD, Li N, Hua X, Wang K, Xu TG (2014) Effect of TiO2 surface structure on the hydrogen production activity of the Pt@CuO/TiO2 photocatalysts for water splitting. ChemCatChem 6(3):842–84710.1002/cctc.201300874 ↗
56. Ng JW, Xu SP, Zhang XW, Yang HY, Sun DD (2010) Hybridized nanowires and cubes: a novel architecture of a heterojunctioned TiO2/SrTiO3 thin film for efficient water splitting. Adv Funct Mater 20(24):4287–429410.1002/adfm.201000931 ↗
57. Maeda K (2013) Z-Scheme water splitting using two different semiconductor photocatalysts. ACS Catal 3(7):1486–150310.1021/cs4002089 ↗
58. Li YY, Wang JS, Yao HC, Dang LY, Li ZJ (2011) Chemical etching preparation of BiOI/Bi2O3 heterostructures with enhanced photocatalytic activities. Catal Commun 12(7):660–66410.1016/j.catcom.2010.12.011 ↗
59. Li X, Zhu J, Li HX (2012) Comparative study on the mechanism in photocatalytic degradation of different-type organic dyes on SnS2 and CdS. Appl Catal B 123–124:174–18110.1016/j.apcatb.2012.04.009 ↗