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Journal of Materials Science: Materials in Electronics

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04-08-2018

Direct photo-oxidation and superoxide radical as major responsible for dye photodegradation mechanism promoted by TiO₂–rGO heterostructure

Authors: Gabriela Byzynski, Diogo P. Volanti, Cauê Ribeiro, Valmor R. Mastelaro, Elson Longo

Published in: Journal of Materials Science: Materials in Electronics | Issue 19/2018

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Abstract

The increase in photocatalytic activity of reduced graphene oxide–TiO₂ heterostructures under ultraviolet and visible illumination is already well known, as the photocatalyst mechanism modifications with heterostructure formation. However, which step in the degradation mechanism is modified with reduced graphene oxide–TiO₂ heterostructure formation has been not demonstrated yet. These specific modifications are caused by the alteration in reactive oxygen species production. In this way, the goal of this study is defined which reactive oxygen species are produced by reduced graphene oxide–TiO₂ heterostructure in the photocatalytic mechanism. A fast synthesis method to obtain this heterostructure by the microwave-assisted solvothermal method is presented, obtaining an improvement of photocatalytic efficiency, under UV and visible illumination. The non-hydrolytic method favors a better distribution of TiO₂ nanoparticles around the reduced graphene oxide structure and inhabits the charge carrier recombination, showing a faster electron transfer than TiO₂ samples. The RhB discoloration mechanism confirms that the reduced graphene oxide presence modifies the main reactive oxygen species produced. Under UV illumination, O₂H* radical is the dominant reactive oxygen species produced by TiO₂. For the heterostructure, the direct oxidation by oxygen vacancy is the primary mechanism step. Under visible illumination, O₂H* is the main reactive oxygen species for both materials. The results present a better understanding of principal reasons related to the improvement in photocatalytic activity and could be useful in semiconductor heterostructure design.

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F. Pei, S. Xu, W. Zuo et al., Effective improvement of photocatalytic hydrogen evolution via a facile in-situ solvothermal N-doping strategy in N-TiO₂/N-graphene nanocomposite. Int. J. Hydrog. Energy 39, 6845–6852 (2014). https://doi.org/10.1016/j.ijhydene.2014.02.173 CrossRef

P. Fernández-Ibáñez, M.I. Polo-López, S. Malato et al., Solar photocatalytic disinfection of water using titanium dioxide graphene composites. Chem. Eng. J. 261, 36–44 (2014). https://doi.org/10.1016/j.cej.2014.06.089 CrossRef

S. Huang, Z. Si, X. Li et al., A novel Au/r-GO/TNTs electrode for H₂O₂, O₂ and nitrite detection. Sen. Actuators B 234, 264–272 (2016). https://doi.org/10.1016/j.snb.2016.04.167 CrossRef

Q. Xiang, B. Cheng, J. Yu, Graphene-based photocatalysts for solar-fuel generation. Angew Chem. Int. Ed. (2015). https://doi.org/10.1002/anie.201411096 CrossRef

Q. Xiang, J. Yu, M. Jaroniec, Graphene-based semiconductor photocatalysts. Chem. Soc. Rev. 41, 782 (2012). https://doi.org/10.1039/c1cs15172j CrossRef

J. Liu, H. Bai, Y. Wang et al., Self-assembling TiO₂ nanorods on large graphene oxide sheets at a two-phase interface and their anti-recombination in photocatalytic applications. Adv. Funct. Mater. 20, 4175–4181 (2010). https://doi.org/10.1002/adfm.201001391 CrossRef

A.H. Cheshme Khavar, G. Moussavi, A.R. Mahjoub, The preparation of TiO₂@rGO nanocomposite efficiently activated with UVA/LED and H₂O₂ for high rate oxidation of acetaminophen: catalyst characterization and acetaminophen degradation and mineralization. Appl. Surf. Sci. 440, 963–973 (2018). https://doi.org/10.1016/j.apsusc.2018.01.238 CrossRef

N. Sun, J. Ma, C. Wang et al., A facile and efficient method to directly synthesize TiO₂/rGO with enhanced photocatalytic performance. Superlatt. Microstruct. 121, 1–8 (2018). https://doi.org/10.1016/J.SPMI.2018.07.017 CrossRef

M. Dhanasekar, V. Jenefer, R.B. Nambiar et al., Ambient light antimicrobial activity of reduced graphene oxide supported metal doped TiO₂ nanoparticles and their PVA based polymer nanocomposite films. Mater. Res. Bull. 97, 238–243 (2018). https://doi.org/10.1016/j.materresbull.2017.08.056 CrossRef

10.

A.V.F.M.V. Ramana, R.S.T. Jadhav, G.S.G. Dae, Y. Kim, TiO₂/reduced graphene oxide composite based nano-petals for supercapacitor application: effect of substrate. J. Mater. Sci. (2018). https://doi.org/10.1007/s10854-018-9146-5 CrossRef

11.

B. Chai, J. Li, Q. Xu, K. Dai, Facile synthesis of reduced graphene oxide/WO₃ nanoplates composites with enhanced photocatalytic activity. Mater. Lett. 120, 177–181 (2014). https://doi.org/10.1016/j.matlet.2014.01.094 CrossRef

12.

M. Long, Y. Qin, C. Chen et al., Origin of visible light photoactivity of reduced graphene oxide/TiO₂ by in situ hydrothermal growth of undergrown TiO₂ with Graphene Oxide. J. Phys. Chem. C 117, 16734–16741 (2013)CrossRef

13.

M. Andreozzi, M.G. Álvarez, S. Contreras et al., Treatment of saline produced water through photocatalysis using rGO–TiO₂ nanocomposites. Catal Today (2018). https://doi.org/10.1016/j.cattod.2018.04.048 CrossRef

14.

Y. Yuan, Y. Leigh, A. Xuchuan, Experimental and theoretical studies of gold nanoparticle decorated zinc oxide nanoflakes with exposed {10 0} facets for butylamine sensing. Sens. Actuators B (2016). https://doi.org/10.1016/j.snb.2016.02.091 CrossRef

15.

D. Chen, H. Zhang, S. Hu, J. Li, Preparation and enhanced photoelectrochemical performance of coupled bicomponent ZnO–TiO₂ nanocomposites. J. Phys. Chem. C 112, 117–122 (2008). https://doi.org/10.1021/jp077236a CrossRef

16.

A. Habib, T. Shahadat, N.M. Bahadur et al., Synthesis and characterization of ZnO–TiO₂ nanocomposites and their application as photocatalysts. Int. Nano Lett. 3, 1–8 (2013). https://doi.org/10.1186/2228-5326-3-5 CrossRef

17.

A.K. Geim, K.S.S. Novoselov, The rise of graphene. Nat. Mater. 6, 183–191 (2007). https://doi.org/10.1038/nmat1849 CrossRef

18.

A.K. Geim, Graphene: status and prospects. Science 324, 1530–1534 (2009). https://doi.org/10.1126/science.1158877 CrossRef

19.

D.P. Volanti, D. Keyson, J.A. Varela, E. Longo, Aparato assistido por microondas para síntese hidrotérmica de óxidos nanoestruturados. Universidade Estadual Paulista And Universidade Federal de São Carlos (Brasil). Br N. Pi0815393-0 07 Dez. 2010 (2008)

20.

G.B. Soares, B. Bravin, C.M.P. Vaz, C. Ribeiro, Facile synthesis of N-doped TiO₂ nanoparticles by a modified polymeric precursor method and its photocatalytic properties. Appl. Catal. B 106, 287–294 (2011). https://doi.org/10.1016/j.apcatb.2011.05.018 CrossRef

21.

M. Dawson, G.B. Soares, C. Ribeiro, Influence of calcination parameters on the synthesis of N-doped TiO₂ by the polymeric precursors method. J. Solid State Chem. 215, 211–218 (2014). https://doi.org/10.1016/j.jssc.2014.03.044 CrossRef

22.

S.A. Bakar, G. Byzynski, C. Ribeiro, Synergistic effect on the photocatalytic activity of N-doped TiO₂ nanorods synthesised by novel route with exposed (110) facet. J. Alloys Compd. 666, 38–49 (2016). https://doi.org/10.1016/j.jallcom.2016.01.112 CrossRef

23.

H. Wang, H. Gao, M. Chen et al., Microwave-assisted synthesis of reduced graphene oxide/titania nanocomposites as an adsorbent for methylene blue adsorption. Appl. Surf. Sci. 360, 840–848 (2016). https://doi.org/10.1016/j.apsusc.2015.11.075 CrossRef

24.

F. Liu, X. Yan, X. Chen et al., Mesoporous TiO₂ nanoparticles terminated with carbonate-like groups: amorphous/crystalline structure and visible-light photocatalytic activity. Catal. Today 264, 243–249 (2016). https://doi.org/10.1016/j.cattod.2015.07.012 CrossRef

25.

K.H. Leong, L.C. Sim, D. Bahnemann et al., Reduced graphene oxide and Ag wrapped TiO₂ photocatalyst for enhanced visible light photocatalysis. Appl. Mater. 3, 104503 (2015). https://doi.org/10.1063/1.4926454 CrossRef

26.

M.Q. Yang, Y.J. Xu, Basic principles for observing the photosensitizer role of graphene in the graphene-semiconductor composite photocatalyst from a case study on graphene-ZnO. J. Phys. Chem. C 117, 21724–21734 (2013). https://doi.org/10.1021/jp408400c CrossRef

27.

J. Qin, X. Zhang, C. Yang et al., ZnO microspheres-reduced graphene oxide nanocomposite for photocatalytic degradation of methylene blue dye. Appl. Surf. Sci. (2016). https://doi.org/10.1016/j.apsusc.2016.09.043 CrossRef

28.

Y. Zhang, C. Xie, F.L. Gu et al., Significant visible-light photocatalytic enhancement in Rhodamine B degradation of silver orthophosphate via the hybridization of N-doped graphene and poly(3-hexylthiophene). J. Hazard. Mater. 315, 23–34 (2016). https://doi.org/10.1016/j.jhazmat.2016.04.068 CrossRef

29.

L.-L. Tan, W.-J. Ong, S.-P. Chai et al., Visible-light-active oxygen-rich TiO₂ decorated 2D graphene oxide with enhanced photocatalytic activity toward carbon dioxide reduction. Appl. Catal. B 179, 160–170 (2015). https://doi.org/10.1016/j.apcatb.2015.05.024 CrossRef

30.

A. Ambrosi, M. Pumera, Electrochemically exfoliated graphene and graphene oxide for energy storage and electrochemistry applications. Chem. A 22, 153–159 (2016). https://doi.org/10.1002/chem.201503110 CrossRef

31.

K. Dhara, T. Ramachandran, B.G. Nair, T.G. Satheesh Babu, Single step synthesis of Au–CuO nanoparticles decorated reduced graphene oxide for high performance disposable nonenzymatic glucose sensor. J. Electroanal. Chem. 743, 1–9 (2015). https://doi.org/10.1016/j.jelechem.2015.02.005 CrossRef

32.

H. Yang, C. Shan, F. Li et al., Covalent functionalization of polydisperse chemically-converted graphene sheets with amine-terminated ionic liquid. Chem. Commun. (2009). https://doi.org/10.1039/b905085j CrossRef

33.

X. Bai, C. Sun, D. Liu et al., Photocatalytic degradation of deoxynivalenol using graphene/ZnO hybrids in aqueous suspension. Appl. Catal. B 204, 11–20 (2017). https://doi.org/10.1016/j.apcatb.2016.11.010 CrossRef

34.

H. Sun, S. Liu, S. Liu, S. Wang, A comparative study of reduced graphene oxide modified TiO₂, ZnO and Ta₂O₅ in visible light photocatalytic/photochemical oxidation of methylene blue. Appl. Catal. B 146, 162–168 (2014). https://doi.org/10.1016/j.apcatb.2013.03.027 CrossRef

35.

M.E.D.G. Azenha, H.D. Burrows, L.M. Canle et al., Kinetic and mechanistic aspects of the direct photodegradation of atrazine, atraton, ametryn and 2-hydroxyatrazine by 254 nm light in aqueous solution. J. Phys. Org. Chem. 16, 498–503 (2003). https://doi.org/10.1002/poc.624 CrossRef

36.

W. Wang, J. Yu, Q. Xiang, B. Cheng, Enhanced photocatalytic activity of hierarchical macro/mesoporous TiO₂-graphene composites for photodegradation of acetone in air. Appl. Catal. B 119–120, 109–116 (2012). https://doi.org/10.1016/j.apcatb.2012.02.035 CrossRef

37.

K. Zhou, Y. Zhu, X. Yang et al., Preparation of graphene–TiO₂ composites with enhanced photocatalytic activity. N. J. Chem. 35, 353–359 (2011)CrossRef

38.

V.R. Posa, V. Annavaram, J.R. Koduru et al., Preparation of graphene–TiO₂ nanocomposite and photocatalytic degradation of Rhodamine-B under solar light irradiation. J. Exp. Nanosci. 11, 722–736 (2016). https://doi.org/10.1080/17458080.2016.1144937 CrossRef

39.

G. Peng, J.E. Ellis, G. Xu et al., In situ grown TiO₂ nanospindles facilitate the formation of holey reduced graphene oxide by photodegradation. ACS Appl. Mater. Interfaces 8, 7403–7410 (2016). https://doi.org/10.1021/acsami.6b01188 CrossRef

40.

G. Byzynski, C. Ribeiro, E. Longo, Blue to yellow photoluminescence emission and photocatalytic activity of nitrogen doping in TiO₂ powders. Int. J. Photoenergy (2015). https://doi.org/10.1155/2015/831930 CrossRef

41.

E. Cui, G. Lu, Enhanced surface electron transfer by fabricating a core/shell Ni@NiO cluster on TiO₂ and its role on high efficient hydrogen generation under visible light irradiation. Int J Hydrog. Energy 39, 8959–8968 (2014). https://doi.org/10.1016/j.ijhydene.2014.03.258 CrossRef

42.

D. Martín-Yerga, E.C. Rama, A. Costa-García, Electrochemical characterization of ordered mesoporous carbon screen-printed electrodes. J. Electrochem. Soc. 163, B176–B179 (2016). https://doi.org/10.1149/2.0871605jes CrossRef

43.

Soares GB, Ribeiro RAP, De Lazaro SR, Ribeiro C, Photoelectrochemical and theoretical investigation of the photocatalytic activity of TiO₂: N. RSC Adv. (2016). https://doi.org/10.1039/c6ra15825k CrossRef

44.

J. Low, J. Yu, M. Jaroniec et al., Heterojunction photocatalysts. Adv. Mater. (2017). https://doi.org/10.1002/adma.201601694 CrossRef

45.

G.B. Soares, R.A.P. Ribeiro, S.R. de Lazaro, C. Ribeiro, Photoelectrochemical and theoretical investigation of the photocatalytic activity of TiO₂: N. RSC Adv. (2016). https://doi.org/10.1039/c6ra15825k CrossRef

46.

P. Wang, S. Zhan, Y. Xia et al., The fundamental role and mechanism of reduced graphene oxide in rGO/Pt–TiO₂ nanocomposite for high-performance photocatalytic water splitting. Appl. Catal. B 207, 335–346 (2017). https://doi.org/10.1016/j.apcatb.2017.02.031 CrossRef

47.

K.S. Divya, M.M. Xavier, P.V. Vandana et al., A quaternary TiO₂/ZnO/RGO/Ag nanocomposite with enhanced visible light photocatalytic performance. N. J. Chem. 41, 6445–6454 (2017). https://doi.org/10.1039/C7NJ00495H CrossRef

48.

Y. Yang, Q. Jin, D. Mao et al., Dually ordered porous TiO₂–rGO composites with controllable light absorption properties for efficient solar energy conversion. Adv. Mater. (2016). https://doi.org/10.1002/adma.201604795 CrossRef

49.

X. Li, R. Shen, S. Ma et al., Graphene-based heterojunction photocatalysts. Appl. Surf. Sci. 430, 53–107 (2018). https://doi.org/10.1016/j.apsusc.2017.08.194 CrossRef

Title: Direct photo-oxidation and superoxide radical as major responsible for dye photodegradation mechanism promoted by TiO2–rGO heterostructure
Authors: Gabriela Byzynski
Diogo P. Volanti
Cauê Ribeiro
Valmor R. Mastelaro
Elson Longo
Publication date: 04-08-2018
Publisher: Springer US
Published in: Journal of Materials Science: Materials in Electronics / Issue 19/2018
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI: https://doi.org/10.1007/s10854-018-9799-0

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