Facile synthesis of a conjugation-grafted-TiO2 nanohybrid with enhanced visible-light photocatalytic properties from nanotube titanic acid precursors
Source abstract
Abstract
A conjugation-grafted-TiO2 nanohybrid was synthesized by chemically grafting conjugated structures on the surface of nanotube titanic acid (NTA) precursor-based TiO2 through the controlled thermal degradation of a coacervated polymer layer of polyvinyl alcohol (PVA). The interfacial interactions between the NTA precursor-based TiO2 and conjugated structures were characterized using Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Moreover, the effects of the NTA’s pretreatment temperature and the weight ratio of NTA to PVA on the photocatalytic degradation of methyl orange were also investigated. A higher NTA pretreatment temperature and a lower NTA to PVA weight ratio were found to enhance photogenerated electron–hole separation efficiency and photocatalytic activity. Moreover, the conjugation-grafted-TiO2 nanohybrid synthesized from the NTA precursor displayed a much higher visible-light photocatalytic activity than that of the sample obtained from the P25 precursor. The origin of the enhanced photocatalytic activity under visible-light irradiation is also discussed in detail.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: TiO2 Photocatalysis and Solar Cells · Advanced Photocatalysis Techniques · Advanced Nanomaterials in Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Chen X, Selloni A (2014) Introduction: titanium dioxide (TiO2) nanomaterials. Chem Rev 114:9281–9282. doi: 10.1021/cr500422r10.1021/cr500422r ↗
2. Chen X, Wang Y, Zhou J et al (2008) Electrochemical impedance immunosensor based on three-dimensionally ordered macroporous gold film. Anal chem 80:2133–2140. doi: 10.1021/ac702137610.1021/ac7021376 ↗
3. Crutzen P (1974) A review of upper atmospheric photochemistry. Can J Chem 52:1569–1581. doi: 10.1139/v74-22910.1139/v74-229 ↗
4. Di Paola A, Garcia-Lopez E, Marci G, Palmisano L (2012) A survey of photocatalytic materials for environmental remediation. J Hazard Mater 211–212:3–29. doi: 10.1016/j.jhazmat.2011.11.05010.1016/j.jhazmat.2011.11.050 ↗
5. Feng C, Wang Y, Zhang J et al (2012) The effect of infrared light on visible light photocatalytic activity: an intensive contrast between Pt-doped TiO2 and N-doped TiO2. Appl Catal B Environ 113–114:61–71. doi: 10.1016/j.apcatb.2011.09.02710.1016/j.apcatb.2011.09.027 ↗
6. Fu G, Zhou P, Zhao M et al (2015) Carbon coating stabilized Ti3+-doped TiO2 for photocatalytic hydrogen generation under visible light irradiation. Dalton Trans 44:12812–12817. doi: 10.1039/c5dt01204j10.1039/c5dt01204j ↗
7. Fujishima A, Zhang X, Tryk D (2008) TiO2 photocatalysis and related surface phenomena. Surf Sci Rep 63:515–582. doi: 10.1016/j.surfrep.2008.10.00110.1016/j.surfrep.2008.10.001 ↗
8. Lei P, Wang F, Zhang S et al (2014) Conjugation-grafted-TiO2 nanohybrid for high photocatalytic efficiency under visible light. ACS Appl Mater Interfaces 6:2370–2376. doi: 10.1021/am404653710.1021/am4046537 ↗
9. Li Y, Hwang D-S, Lee NH, Kim S-J (2005) Synthesis and characterization of carbon-doped titania as an artificial solar light sensitive photocatalyst. Chem Phys Lett 404:25–29. doi: 10.1016/j.cplett.2005.01.06210.1016/j.cplett.2005.01.062 ↗
10. Li K, Gao S, Wang Q et al (2015) In-situ-reduced synthesis of Ti3+ self-doped TiO2/g-C3N4 heterojunctions with high photocatalytic performance under LED light irradiation. ACS Appl Mater Interfaces 7:9023–9030. doi: 10.1021/am508505n10.1021/am508505n ↗
11. Liang HC, Li XZ (2009) Visible-induced photocatalytic reactivity of polymer–sensitized titania nanotube films. Appl Catal B Environ 86:8–17. doi: 10.1016/j.apcatb.2008.07.01510.1016/j.apcatb.2008.07.015 ↗
12. Liu D, Zi W, Sajjad SD et al (2015a) Reversible electron storage in an all-vanadium photoelectrochemical storage cell: synergy between vanadium redox and hybrid photocatalyst. ACS Catal 5:2632–2639. doi: 10.1021/cs502024k10.1021/cs502024k ↗
13. Liu X, Chen Q, Lv L et al (2015b) Preparation of transparent PVA/TiO2 nanocomposite films with enhanced visible-light photocatalytic activity. Catal Commun 58:30–33. doi: 10.1016/j.catcom.2014.08.03210.1016/j.catcom.2014.08.032 ↗
14. oh Won-Chun, Jung A-R, Ko Weon-Bae (2007) Preparation of fullerene/TiO2 composite and its photocatalytic effect. J Ind Eng Chem 17:1208–1214
15. Ren W, Ai Z, Jia F et al (2007) Low temperature preparation and visible light photocatalytic activity of mesoporous carbon-doped crystalline TiO2. Appl Catal B: Environ 69:138–144. doi: 10.1016/j.apcatb.2006.06.01510.1016/j.apcatb.2006.06.015 ↗
16. Shanmugam S, Gabashvili A, Jacob DS et al (2006) Synthesis and characterization of TiO2@C core-shell composite nanoparticles and evaluation of their photocatalytic activities. Chem Mater 18:2275–2282. doi: 10.1021/cm052790n10.1021/cm052790n ↗
17. Sun H, Bai Y, Cheng Y et al (2006) Preparation and characterization of visible-light-driven carbon-sulfur-codoped TiO2 photocatalysts. Ind Eng Chem Res 45:4971–4976. doi: 10.1021/ie060350f10.1021/ie060350f ↗
18. Wang Y, Shi R, Lin J, Zhu Y (2010) Significant photocatalytic enhancement in methylene blue degradation of TiO2 photocatalysts via graphene-like carbon in situ hybridization. Appl Catal B Environ 100:179–183. doi: 10.1016/j.apcatb.2010.07.02810.1016/j.apcatb.2010.07.028 ↗
19. Wang X, Pan H, Xue X et al (2011a) Preparation and characterization of titanate nanotubes/carbon composites. Mater Chem Phys 130:827–830. doi: 10.1016/j.matchemphys.2011.08.01910.1016/j.matchemphys.2011.08.019 ↗
20. Wang Y, Feng C, Zhang M et al (2011b) Visible light active N-doped TiO2 prepared from different precursors: origin of the visible light absorption and photoactivity. Appl Catal B Environ 104:268–274. doi: 10.1016/j.apcatb.2011.03.02010.1016/j.apcatb.2011.03.020 ↗
21. Wang Y, Jing M, Zhang M, Yang J (2012) Facile synthesis and photocatalytic activity of platinum decorated TiO2–xNx: perspective to oxygen vacancies and chemical state of dopants. Catal Commun 20:46–50. doi: 10.1016/j.catcom.2012.01.00310.1016/j.catcom.2012.01.003 ↗
22. Wang J, Wang M, Xiong JR, Lu CH (2015) Enhanced photocatalytic activity of a TiO2/graphene composite by improving the reduction degree of graphene. New Carbon Mater 30:357–363. doi: 10.1016/S1872-5805(15)60195-010.1016/S1872-5805(15)60195-0 ↗
23. Wu H, Fan J, Liu EZ et al (2014) Facile hydrothermal synthesis of TiO2 nanospindles-reduced graphene oxide composite with a enhanced photocatalytic activity. J Alloy Compd 623:298–303. doi: 10.1016/j.jallcom.2014.10.15310.1016/j.jallcom.2014.10.153 ↗
24. Yang J, Jin ZS, Wang XD et al (2003) Study on composition, structure and formation process of nanotube Na2Ti2O4(OH)2. Dalton Trans 20:3898–3901. doi: 10.1039/b305585j10.1039/b305585j ↗
25. Zhang M, Jin ZS, Zhang JW et al (2004) Effect of annealing temperature on morphology, structure and photocatalytic behavior of nanotubed H2Ti2O4(OH)2. J Mol Catal A Chem 217:203–210. doi: 10.1016/j.molcata.2004.03.03210.1016/j.molcata.2004.03.032 ↗
26. Zhang H, Lv X, Li Y et al (2010) P25-graphene composite as a high performance photocatalyst. ACS Nano 4:380–386. doi: 10.1021/nn901221k10.1021/nn901221k ↗
27. Zhang J, Huang ZH, Xu Y, Kang FY (2011) Carbon-coated TiO2 composites for the photocatalytic degradation of low concentration benzene. New Carbon Mater 26:63–70. doi: 10.1016/s1872-5805(11)60067-x10.1016/s1872-5805(11)60067-x ↗
28. Zhao X, Xu T, Yao W et al (2007) Photoelectrocatalytic degradation of 4-chlorophenol at Bi2WO6 nanoflake film electrode under visible light irradiation. Appl Catal B Environ 72:92–97. doi: 10.1016/j.apcatb.2006.10.00610.1016/j.apcatb.2006.10.006 ↗
29. Zou Z, Cheng H, Wang J, Han X (2015) Pyrolyzed titanium dioxide/polyaniline as an efficient non-noble metal electrocatalyst for oxygen reduction reaction. Chin J Catal 36:414–424. doi: 10.1016/s1872-2067(14)60223-010.1016/s1872-2067(14)60223-0 ↗