Abstract
Although the nitrous oxide belongs among three of the most contributing greenhouse gases to global warming, it is quite neglected by photocatalytic society. The g-C3N4 and WO3 composites were therefore tested for the photocatalytic decomposition of N2O for the first time. The pure photocatalysts were prepared by simple calcination of precursors, and the composites were prepared by mixing of suspension of pure components in water followed by calcination. The structural (X-ray diffraction, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy), textural (N2 physisorption), and optical properties (diffuse reflectance spectroscopy, photoluminescence spectroscopy, photoelectrochemical measurements) of all composites were correlated with photocatalytic activity. The experimental results and results from characterization techniques confirmed creation of Z-scheme in the WO3/g-C3N4 composites, which was confirmed by hydroxyl radicals’ trapping measurements. The photocatalytic decomposition of N2O was carried out in the presence of UVA light (peak intensity at 365 nm) and the 1:2 WO3/g-C3N4 composite was the most active one, but the photocatalytic activity was just negligibly higher than that of pure WO3. This is caused by relatively weak interaction between WO3 and g-C3N4 which was revealed from XPS.
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References
Berks BC, Ferguson SJ, Moir JW, Richardson DJ (1995) Enzymes and associated electron transport systems that catalyse the respiratory reduction of nitrogen oxides and oxyanions. Biochim Biophys Acta 1232(3):97–173. https://doi.org/10.1016/0005-2728(95)00092-5
Chen S, Hu Y, Jiang X, Meng S, Fu X (2015) Fabrication and characterization of novel Z-scheme photocatalyst WO3/g-C3N4 with high efficient visible light photocatalytic activity. Mater Chem Phys 149-150:512–521. https://doi.org/10.1016/j.matchemphys.2014.11.001
Cheng C, Jinwen S, Yuchao H, Liejin G (2017) WO3/g-C3N4 composites: one-pot preparation and enhanced photocatalytic H2 production under visible-light irradiation. Nanotechnology 28(16):164002–164016. https://doi.org/10.1088/1361-6528/aa651a
Chuang P-K, Wu K-H, Yeh T-F, Teng H (2016) Extending the π-conjugation of g-C3N4 by incorporating aromatic carbon for photocatalytic H2 evolution from aqueous solution. ACS Sustain Chem Eng 4(11):5989–5997. https://doi.org/10.1021/acssuschemeng.6b01266
Cui L, Ding X, Wang Y, Shi H, Huang L, Zuo Y, Kang S (2017) Facile preparation of Z-scheme WO3/g-C3N4 composite photocatalyst with enhanced photocatalytic performance under visible light. Appl Surf Sci 391:202–210. https://doi.org/10.1016/j.apsusc.2016.07.055
Dai H, Gao X, Liu E, Yang YH, Hou WQ, Kang LM, Fan J, Hu X (2013) Synthesis and characterization of graphitic carbon nitride sub-microspheres using microwave method under mild condition. Diam Relat Mater 38:109–117. https://doi.org/10.1016/j.diamond.2013.06.012
Gondal MA, Adesida AA, Rashid SG, Shi S, Khan R, Yamani ZH, Shen K, Xu Q, Seddigi ZS, Chang X (2015) Preparation of WO3/g-C3N4 composites and their enhanced photodegradation of contaminants in aqueous solution under visible light irradiation. React Kinet Mech Cat 114(1):357–367. https://doi.org/10.1007/s11144-014-0787-y
Halder NC, Wagner CNJ (1966) Separation of particle size and lattice strain in integral breadth measurements. Acta Crystallogr 20(2):312–313. https://doi.org/10.1107/S0365110X66000628
He K, Xie J, Luo X, Wen J, Ma S, Li X, Fang Y, Zhang X (2017) Enhanced visible light photocatalytic H2 production over Z-scheme g-C3N4 nansheets/WO3 nanorods nanocomposites loaded with Ni(OH)x cocatalysts. Chin J Catal 38(2):240–252. https://doi.org/10.1016/S1872-2067(17)62759-1
Huang Q, Wang L, Wang M, Nan J (2011) Preparation, characterization and the electrogenerated chemiluminescence behavior of WO3 nanocrystals. J Alloys Compd 509(41):9901–9905. https://doi.org/10.1016/j.jallcom.2011.07.082
Karimi-Nazarabad M, Goharshadi EK (2017) Highly efficient photocatalytic and photoelectrocatalytic activity of solar light driven WO3/g-C3N4 nanocomposite. Sol Energy Mater Sol Cells 160:484–493. https://doi.org/10.1016/j.solmat.2016.11.005
Khan I, Abdalla A, Qurashi A (2017) Synthesis of hierarchical WO3 and Bi2O3/WO3 nanocomposite for solar-driven water splitting applications. Int J Hydrog Energy 42(5):3431–3439. https://doi.org/10.1016/j.ijhydene.2016.11.105
Kočí K, Reli M, Troppová I, Šihor M, Kupková J, Kustrowski P, Praus P (2017) Photocatalytic decomposition of N2O over TiO2/g-C3N4 photocatalysts heterojunction. Appl Surf Sci 396:1685–1695. https://doi.org/10.1016/j.apsusc.2016.11.242
Kudo A, Nagayoshi H (1998) Photocatalytic reduction of N2O on metal-supported TiO2 powder at room temperature in the presence of H2O and CH3OH vapor. Catal Lett 52(1/2):109–111. https://doi.org/10.1023/a:1019050815670
Li H, Liu Y, Gao X, Fu C, Wang X (2015) Facile synthesis and enhanced visible-light photocatalysis of graphitic carbon nitride composite semiconductors. ChemSusChem 8(7):1189–1196. https://doi.org/10.1002/cssc.201500024
Li J, Hao H, Zhou J, Zhu Z (2016a) G-C3N4 modified flower-like WO3-Bi2WO6 microspheres with enhanced photoelectrocatalytic activity. New J Chem 40(11):9638–9647. https://doi.org/10.1039/C6NJ01749E
Li Y, Wei X, Yan X, Cai J, Zhou A, Yang M, Liu K (2016b) Construction of inorganic-organic 2D/2D WO3/g-C3N4 nanosheet arrays toward efficient photoelectrochemical splitting of natural seawater. Phys Chem Chem Phys 18(15):10255–10261. https://doi.org/10.1039/C6CP00353B
Liu X, Jin A, Jia Y, Xia T, Deng C, Zhu M, Chen C, Chen X (2017) Synergy of adsorption and visible-light photocatalytic degradation of methylene blue by a bifunctional Z-scheme heterojunction of WO3/g-C3N4. Appl Surf Sci 405:359–371. https://doi.org/10.1016/j.apsusc.2017.02.025
Lou Z, Xue C (2016) In situ growth of WO3-x nanowires on g-C3N4 nanosheets: 1D/2D heterostructures with enhanced photocatalytic activity. CrystEngComm 18(43):8406–8410. https://doi.org/10.1039/C6CE01557C
Low J, Jiang C, Cheng B, Wageh S, Al-Ghamdi AA, Yu J (2017) A Review of Direct Z-Scheme Photocatalysts. Small Methods 1:1700080. https://doi.org/10.1002/smtd.201700080
Meng J, Pei J, He Z, Wu S, Lin Q, Wei X, Li J, Zhang Z (2017) Facile synthesis of g-C3N4 nanosheets loaded with WO3 nanoparticles with enhanced photocatalytic performance under visible light irradiation. RSC Adv 7(39):24097–24104. https://doi.org/10.1039/C7RA02297B
Ming T, de Richter R, Shen S, Caillol S (2016) Fighting global warming by greenhouse gas removal: destroying atmospheric nitrous oxide thanks to synergies between two breakthrough technologies. Environ Sci Pollut Res Int 23(7):6119–6138. https://doi.org/10.1007/s11356-016-6103-9
Miyauchi M, Shibuya M, Zhao Z-G, Liu Z (2009) Surface wetting behavior of a WO3 electrode under light-irradiated or potential-controlled conditions. J Phys Chem C 113(24):10642–10646. https://doi.org/10.1021/jp901097b
Pichat P (2016) Fundamentals of TiO2 Photocatalysis. Consequences for some environmental applications. In: Colmenares JC, Xu Y-J (eds) Heterogeneous photocatalysis: from fundamentals to green applications. Springer Berlin Heidelberg, Berlin, Heidelberg, pp 321–359. https://doi.org/10.1007/978-3-662-48719-8_10
Praus P, Svoboda L, Dvorský R, Reli M, Kormunda M, Mančík P (2017a) Synthesis and properties of nanocomposites of WO3 and exfoliated g-C3N4. Ceram Int. https://doi.org/10.1016/j.ceramint.2017.07.067
Praus P, Svoboda L, Ritz M, Troppová I, Šihor M, Kočí K (2017b) Graphitic carbon nitride: synthesis, characterization and photocatalytic decomposition of nitrous oxide. Mater Chem Phys 193:438–446. https://doi.org/10.1016/j.matchemphys.2017.03.008
Reli M, Huo P, Šihor M, Ambrožová N, Troppová I, Matějová L, Lang J, Svoboda L, Kuśtrowski P, Ritz M, Praus P, Kočí K (2016) Novel TiO2/C3N4 photocatalysts for photocatalytic reduction of CO2 and for photocatalytic decomposition of N2O. J Phys Chem A 120(43):8564–8573. https://doi.org/10.1021/acs.jpca.6b07236
Stroyuk AL, Panasiuk YV, Raevskaya AE, Kuchmy SY (2015) Spectral and luminescent characteristics of products from exfoliation of graphitic carbon nitride produced at various temperatures. Theor Exp Chem 51(4):243–251. https://doi.org/10.1007/s11237-015-9423-9
Troppová I, Šihor M, Reli M, Ritz M, Praus P, Kočí K (2017) Unconventionally prepared TiO2/g-C3N4 photocatalysts for photocatalytic decomposition of nitrous oxide. Appl Surf Sci. https://doi.org/10.1016/j.apsusc.2017.06.299
Vidya S, Solomon S, Thomas JK (2015) Synthesis and characterisation of MoO3 and WO3 nanorods for low temperature co-fired ceramic and optical applications. J Mater Sci Mater Electron 26(5):3243–3255. https://doi.org/10.1007/s10854-015-2823-8
Villa K, Domènech X, García-Pérez UM, Peral J (2016) Photocatalytic hydrogen production under visible light by using a CdS/WO3 composite. Catal Lett 146(1):100–108. https://doi.org/10.1007/s10562-015-1612-6
Wang C-H, Qin DD, Shan DL, Gu J, Yan Y, Chen J, Wang QH, He CH, Li Y, Quan JJ, Lu XQ (2017) Assembly of g-C3N4-based type II and Z-scheme heterojunction anodes with improved charge separation for photoelectrojunction water oxidation. Phys Chem Chem Phys 19(6):4507–4515. https://doi.org/10.1039/C6CP08066A
Xu H, Liu L, She X, Mo Z, Xu Y, Huang L, Song Y, Li H (2016) WO3 nanorod photocatalysts decorated with few-layer g-C3N4 nanosheets: controllable synthesis and photocatalytic mechanism research. RSC Adv 6(83):80193–80200. https://doi.org/10.1039/C6RA12861K
Yuan X, Zhou C, Jing Q, Tang Q, Mu Y, Du A-K (2016) Facile synthesis of g-C3N4 nanosheets/ZnO nanocomposites with enhanced photocatalytic activity in reduction of aqueous chromium (VI) under visible light. Nano 6(9):173–185. https://doi.org/10.3390/nano6090173
Zhang Z, Wu S, Zhang J, Tang S, Hu C, Li Y, Jiang L, Cui Q (2015) Well-aligned carbon nitride nanorods: the template-free synthesis and their optical and thermal properties. Appl Phys A Mater Sci Process 119(4):1507–1513. https://doi.org/10.1007/s00339-015-9128-x
Zhang J, Zhang M, Sun R-Q, Wang X (2012) A facile band alignment of polymeric carbon nitride semiconductors to construct isotype heterojunctions. Angew Chem Int Ed 51(40):10145–10149. https://doi.org/10.1002/anie.201205333
Zhang Y, Pan Q, Chai G, Liang M, Dong G, Zhang Q, Qiu J (2013) Synthesis and luminescence mechanism of multicolor-emitting g-C3N4 nanopowders by low temperature thermal condensation of melamine. Sci Rep 3(1):1–8. https://doi.org/10.1038/srep01943
Zhao J, Ji Z, Shen X, Zhou H, Ma L (2015) Facile synthesis of WO3 nanorods/g-C3N4 composites with enhanced photocatalytic activity. Ceram Int 41(4):5600–5606. https://doi.org/10.1016/j.ceramint.2014.12.140
Zhao R, Li X, Su J, Gao X (2017) Preparation of WO3/g-C3N4 composites and their application in oxidative desulfurization. Appl Surf Sci 392:810–816. https://doi.org/10.1016/j.apsusc.2016.08.120
Acknowledgements
The financial support of the Grant Agency of the Czech Republic (no. 16-10527S) and EU structural funding Operational Programme Research and Development for Innovation project no. CZ.1.05/2.1.00/19.0388 is being acknowledged.
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Reli, M., Svoboda, L., Šihor, M. et al. Photocatalytic decomposition of N2O over g-C3N4/WO3 photocatalysts. Environ Sci Pollut Res 25, 34839–34850 (2018). https://doi.org/10.1007/s11356-017-0723-6
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DOI: https://doi.org/10.1007/s11356-017-0723-6