Ti3+-doped TiO2 hollow sphere with mixed phases of anatase and rutile prepared by dual-frequency atmospheric pressure plasma jet
Source abstract
Abstract
A novel method of synthesizing Ti3+-doped TiO2 was proposed. Ti3+-doped TiO2 hollow spheres were prepared with different thickness of carbon shell by using atmospheric pressure plasma jet generated by dual-frequency power sources. The as-synthesized Ti3+-doped TiO2 hollow microspheres were characterized by X-ray diffraction (XRD) pattern, scanning electron microscope (SEM) images, high-resolution transmission electron microscopy (HRTEM) images, Raman spectra, X-ray photoelectron spectroscopy (XPS), and UV–vis spectra. These results indicated that these samples had mixed phases of anatase and rutile and the structure of hollow sphere varied with different thickness of carbon shell. The Ti-O-C chemical bond was the connection between the TiO2 hollow sphere and carbon layer. Amount of Ti3+ ions were found, which were accompanied with the formation of oxygen vacancies. Meantime, the as-synthesized catalysts also display strong absorption in the visible light region and have a narrow band energy gap. Optical emission spectroscopy (OES) was used to observe different excited species in the discharge area. These results showed that the oxygen content had a significant impact on the number of oxygen vacancies. Finally, the photocatalytic activities of as-prepared samples were evaluated by decomposition of rhodamine B aqueous solution, which showed better photocatalytic activity under UV–vis light irradiation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Cai J, Wu X, Li S, Zheng F, Zhu L, Lai Z (2015) Synergistic effect of double-shelled and sandwiched TiO2@Au@C hollow spheres with enhanced visible-light-driven photocatalytic activity. ACS Appl Mater Interfaces 7:3764–377210.1021/am508554t ↗
2. Di Valentin C, Pacchioni G, Selloni A (2005) Theory of carbon doping of titanium dioxide. Chem Mater 17:6656–666510.1021/cm051921h ↗
3. Fang W, Xing M, Zhang J (2014) A new approach to prepare Ti3+ self-doped TiO2 via NaBH4 reduction and hydrochloric acid treatment. Appl Catal B 160−161:240–24610.1016/j.apcatb.2014.05.031 ↗
4. Fu G, Zhou P, Zhao MM, Zhu WD, Yan SC, Yu T, Zou ZG (2015) Carbon coating stabilized Ti3+-doped TiO2 for photocatalytic hydrogen generation under visible light irradiation. Dalton Trans 44:12812–1281710.1039/C5DT01204J ↗
5. Guan M, Xiao C, Zhang J, Fan S, An R, Cheng Q, Xie J, Zhou M, Ye B, Xie Y (2013) Vacancy associates promoting solar-driven photocatalytic activity of ultrathin bismuth oxychloride nanosheets. J Am Chem Soc 135:10411–10411710.1021/ja402956f ↗
6. He Z, Que W, He Y (2014) Enhanced photocatalytic performance of sensitized mesoporous TiO2 nanoparticles by carbon mesostructures. RSC Adv 4:3332–333910.1039/C3RA46389C ↗
7. Hisatomi T, Kubota J, Domen K (2014) Cheminform abstract: recent advances in semiconductors for photocatalytic and photoelectrochemical water splitting. Chem Soc Rev 43:7520–753510.1039/C3CS60378D ↗
8. In S, Orlov A, Berg R, García F, Jimenez SP, Tikhov MS, Wright DS, Lambert RM (2007) Effective visible light-activated B doped and B, N-codoped TiO2 photocatalysts. J Am Chem Soc 129:13790–1379110.1021/ja0749237 ↗
9. Jing L, Zeng HC (2006) Preparation of monodisperse Au/TiO2 nanocatalysts via self-assembly. Chem Mater 18:4270–427710.1021/cm060362r ↗
10. Khan SU, Al-Shahry M, Ingler WB (2002) Efficient photochemical water splitting by a chemically modified n-TiO2. Science 297:2243–224510.1126/science.1075035 ↗
11. Kuznetsov MV, Zhuravlev JF, Gubanov VA (1992) Xps analysis of adsorption of oxygen molecules on the surface of Ti and TiNx, films in vacuum. J Electron Spectrosc Relat Phenom 58:169–17610.1016/0368-2048(92)80016-2 ↗
12. Lettmann C, Hildenbrand K, Kisch H, Macyk W, Maier WF (2001) Visible light photodegradation of 4-chlorophenol with a coke-containing titanium dioxide photocatalyst. Appl. Catal., B. 32:215–22710.1016/S0926-3373(01)00141-2 ↗
13. Li Y, Hwang DS, Lee NH, Kim SJ (2005) Synthesis and characterization of carbon-doped titania as an artificial solar light sensitive photocatalyst. Chem Phys Lett 404:25–2910.1016/j.cplett.2005.01.062 ↗
14. Li S, Chen J, Zheng F, Li Y, Huang F (2013) Synthesis of the double-shell anatase-rutile TiO2 hollow spheres with enhanced photocatalytic activity. Nanoscale 5:12150–1215510.1039/c3nr04043g ↗
15. Liu G, Wang LZ, Yang HG, Cheng HM, Lu GQ (2010) Titania-based photocatalysts-crystal growth, doping and heterostructuring. J Mater Chem 20:831–83510.1039/B909930A ↗
16. Liu SX, Liu JL, Li XS, Zhu X, Zhu AM (2015) Gliding arc plasma synthesis of visible-light active C-doped titania photocatalysts. Plasma Process Polym 12:422–43010.1002/ppap.201400158 ↗
17. Montoro LA, Corio P, Rosolen JM (2007) A comparative study of alcohols and ketones as carbon precursor for multi-walled carbon nanotube growth. Carbon 45:1234–124110.1016/j.carbon.2007.01.025 ↗
18. Narayanan PS (1950) Raman spectrum of rutile (TiO2). Proc Indian Acad Sci Sect A. Springer, India 32:279–28310.1007/BF03170832 ↗
19. Nikiforov AY, Sarani A, Leys C (2011) The influence of water vapor content on electrical and spectral properties of an atmospheric pressure plasma jet. Plasma Sources Sci Technol 20:15014–15021(8)10.1088/0963-0252/20/1/015014 ↗
20. Ohsaka T, Izumi F, Fujiki Y (1978) Raman spectrum of anatase, TiO2. J Raman Spectrosc 7:321–32410.1002/jrs.1250070606 ↗
21. Papirer E, Lacroix R, Donnet JB, Nanse G, Fioux P (1994) Xps study of the halogenation of carbon black-part 1. Bromination Carbon 32:1341–135810.1016/0008-6223(94)90121-X ↗
22. Safeen K, Micheli V, Bartali R, Gottardi G, Laidani N (2015) Low temperature growth study of nano-crystalline TiO2 thin films deposited by rf sputtering. J Phys D Appl Phys 48:29520110.1088/0022-3727/48/29/295201 ↗
23. Sellappan R, Zhu J, Fredriksson H, Martins RS, Zäch M, Chakarov D (2011) Preparation and characterization of TiO2/carbon composite thin films with enhanced photocatalytic activity. J Mol Catal A Chem 335:136–14410.1016/j.molcata.2010.11.025 ↗
24. Sohbatzadeh F, Safari R, Etaati GR, Asadi E, Mirzanejhad S, Hosseinnejad MT (2015) Characterization of diamond-like carbon thin film synthesized by rf atmospheric pressure plasma Ar/CH4 jet. Superlattice Microst 89:15–21
25. Thompson TL, Yates JT (2006) Surface science studies of the photoactivation of TiO2-new photochemical processes. Chem Rev 106:4428–445310.1021/cr050172k ↗
26. Urbonaite S, Hälldahl L, Svensson G (2008) Raman spectroscopy studies of carbide derived carbons. Carbon 46(14):1942–194710.1016/j.carbon.2008.08.004 ↗
27. Wang Y, Yuan QH, Yin GQ, Zhang Y, Zhang YD, Li Y, Li JJ, Wang T, Ma SY (2016) Synthesis of mixed-phase TiO2 nanopowders using atmospheric pressure plasma jet driven by dual-frequency power sources. Plasma Chem Plasma Process 36:1471–148410.1007/s11090-016-9746-x ↗
28. Wang Y, Yuan QH, Yin GQ, Zhang Y, Li JJ, Zhang YD, Li Y (2017) A new method for deposition nitrogen-doped TiO2 nanofibers with mixed phases of anatase and rutile. Surf Interface Anal 49:967–97210.1002/sia.6253 ↗
29. Xiao Q, Zhang J, Xiao C, Si Z, Tan X (2008) Solar photocatalytic degradation of methylene blue in carbon-doped TiO2 nanoparticles suspension. Sol Energy 82:706–71310.1016/j.solener.2008.02.006 ↗
30. Xu C, Killmeyer R, Gray ML, Khan SU (2006) Photocatalytic effect of carbon-modified n-TiO2 nanoparticles under visible light illumination. Appl. Catal., B. 64:312–31710.1016/j.apcatb.2005.11.008 ↗
31. Ying Z, Zhao Z, Chen J, Li C, Chang J, Sheng W (2015) C-doped hollow TiO2, spheres: in situ synthesis, controlled shell thickness, and superior visible-light photocatalytic activity. Appl Catal, B 165:715–72210.1016/j.apcatb.2014.10.063 ↗
32. Zachariah A, Baiju KV, Shukla S, Deepa KS, James J, Warrier KGK (2008) Synergistic effect in photocatalysis as observed for mixed-phase nanocrystalline titania processed via sol-gel solvent mixing and calcination. J Phys Chem C 112:11345–1135610.1021/jp712174y ↗
33. Zhang LW, Fu HB, Zhu YF (2008) Efficient TiO2 photocatalysts from surface hybridization of TiO2 particles with graphite-like carbon. Adv Funct Mater 18:2180–218910.1002/adfm.200701478 ↗
34. Zhang P, Shao CL, Zhang ZY, Zhang MY, Mu JB, Guo ZC, Liu YC (2011) TiO2@ carbon core/shell nanofibers: controllable preparation and enhanced visible photocatalytic properties. Nanoscale 3:2943–294910.1039/c1nr10269a ↗
35. Zhao YB, Pan F, Li H, Zhao DX, Liu L, Xu GQ, Chen W (2013) Uniform mesoporous anatase-brookite biphase TiO2 hollow spheres with high crystallinity via Ostwald ripening. J Phys Chem C 117:21718–2172310.1021/jp408322g ↗
36. Zhao J, Zhang L, Xing W, Lu K (2015) A novel method to prepare B/N codoped anatase TiO2. J Phys Chem C 119:7732–773710.1021/jp512837n ↗
37. Zhong J, Chen F, Zhang JL (2009) Carbon-deposited TiO2: synthesis, characterization, and visible photocatalytic performance. J Phys Chem C 114:933–93910.1021/jp909835m ↗
38. Zhuang J, Tian Q, Zhou H, Liu Q, Liu P, Zhong H (2012) Hierarchical porous TiO2@C hollow microspheres: one-pot synthesis and enhanced visible-light photocatalysis. J Mater Chem 22:7036–704210.1039/c2jm16924j ↗