Abstract
An in-situ photoreduction strategy is applied to coat Ag nanowires (NWs) directly onto the surface of one-dimensional (1D) α-Fe2O3 nanotube arrays (NTAs) fabricated by anodization treatment, and their chemical composition, morphologies, optical properties, and stability are systematically characterized. Structural characterization results manifest that Ag NWs are successfully anchored on α-Fe2O3 NTAs with the average nanotube diameter of 80 nm and confirm the formation of Ag/α-Fe2O3 NTA heterostructure. An apparent red shift in absorption edges of Ag/α-Fe2O3 NTAs is observed. Particularly, the 30-min Ag/α-Fe2O3 NTAs with Ag NW’s average length of 100 nm display the best photocatalytic ability for photocatalytic degradation of methylene blue (MB) dye under visible light illumination, owing to the synergistic effect of the localized surface plasmon resonance (LSPR) on Ag NWs as well as the synergistic effect on the electron delivery and effective separation of photogenerated carriers between Ag NWs and α-Fe2O3 NTAs. In addition, the photogenerated holes (h+) and superoxide radicals (O2 ·−) played crucial roles during the photocatalytic process.
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Chang CY, Wang CH, Tseng CJ et al (2012) Self-oriented iron oxide nanorod array thin film for photoelectrochemical hydrogen production[J]. Int J Hydrog Energy 37(18):13616–13622
Chen Y, Gao N, Jiang J (2013) Surface matters: enhanced bactericidal property of core-shell Ag-Fe2O3 nanostructures to their heteromer counterparts from one-pot synthesis[J]. Small 9(19):3242–3246
Chen Y, Dong L, Zhao M et al (2014) Ag2S-hollow Fe2O3 nanocomposites with NIR photoluminescence[J]. Chem Commun 50(78):11514–11516
Ding J, Zhang L, Liu Q et al (2017) Synergistic effects of electronic structure of WO3 nanorods with the dominant {001} exposed facets combined with silver size-dependent on the visible-light photocatalytic activity[J]. Appl Catal B Environ 203:335–342
Eom H, Lee J, Pichitpajongkit A et al (2014) Ag@Ni core-shell nanowire network for robust transparent electrodes against oxidation and sulfurization[J]. Small 10(20):4171–4181
Fairfield JA, Ritter C, Bellew AT et al (2014) Effective electrode length enhances electrical activation of nanowire networks: experiment and simulation[J]. ACS Nano 8(9):9542–9549
Feng J, Fan D, Wang Q et al (2017) Facile synthesis silver nanoparticles on different xerogel supports as highly efficient catalysts for the reduction of p-nitrophenol[J]. Colloids Surf A Physicochem Eng Asp 520:743–756
Jiang Z, Jiang D, Hossain AMS et al (2015) In situ synthesis of silver supported nanoporous iron oxide microbox hybrids from metal-organic frameworks and their catalytic application in p-nitrophenol reduction[J]. Phys Chem Chem Phys 17(4):2550–2559
Kim T, Canlier A, Cho C et al (2014) Highly transparent Au-coated Ag nanowire transparent electrode with reduction in haze[J]. ACS Appl Mater Interfaces 6(16):13527–13534
Lagrange M, Langley DP, Giusti G et al (2015) Optimization of silver nanowire-based transparent electrodes: effects of density, size and thermal annealing[J]. Nano 7(41):17410–17423
Li H, Zhao Q, Li X et al (2012) Photocatalytic degradation of gaseous toluene over hollow “spindle-like” α-Fe2O3 loaded with Ag[J]. Mater Res Bull 47(6):1459–1466
Li S, Hu S, Jiang W et al (2017a) Facile synthesis of flower-like Ag3VO4/Bi2WO6 heterojunction with enhanced visible-light photocatalytic activity[J]. J Colloid Interface Sci 501:156–163
Li S, Hu S, Xu K et al (2017b) Construction of fiber-shaped silver oxide/tantalum nitride pn heterojunctions as highly efficient visible-light-driven photocatalysts[J]. J Colloid Interface Sci 504:561–569
Li S, Hu S, Zhang J et al (2017c) Facile synthesis of Fe2O3 nanoparticles anchored on Bi2MoO6 microflowers with improved visible light photocatalytic activity[J]. J Colloid Interface Sci 497:93–101
Li S, Shen X, Liu J et al (2017d) Synthesis of Ta3N5/Bi2MoO6 core–shell fiber-shaped heterojunctions as efficient and easily recyclable photocatalysts[J]. Environ Sci: Nano 4(5):1155–1167
Liu J, Zhang H, Tang D et al (2014) Carbon quantum dot/silver nanoparticle/polyoxometalate composites as photocatalysts for overall water splitting in visible light[J]. ChemCatChem 6(9):2634–2641
Liu Z, Tian X, Xu X et al (2017) Capacitance and voltage matching between MnO2 nanoflake cathode and Fe2O3 nanoparticle anode for high-performance asymmetric micro-supercapacitors[J]. Nano Res:1–11
Mahmoud MHH, Ismail AA, Sanad MMS (2012) Developing a cost-effective synthesis of active iron oxide doped titania photocatalysts loaded with palladium, platinum or silver nanoparticles[J]. Chem Eng J 187:96–103
Peerakiatkhajohn P, Yun JH, Chen H et al (2016) Stable hematite nanosheet photoanodes for enhanced photoelectrochemical water splitting[J]. Adv Mater 28(30):6405–6410
Qin J, Zeng H (2017) Photocatalysts fabricated by depositing plasmonic Ag nanoparticles on carbon quantum dots/graphitic carbon nitride for broad spectrum photocatalytic hydrogen generation[J]. Appl Catal B Environ 209:161–173
Ren H, Gou X, Yang Q (2017) Ultrathin Ag nanoparticles anchored on urchin-like WO3·0.33H2O for enhanced photocatalytic performance[J]. RSC Adv 7(20):12085–12088
Ruditskiy A, Xia Y (2016) Toward the synthesis of sub-15 nm Ag nanocubes with sharp corners and edges: the roles of heterogeneous nucleation and surface capping[J]. J Am Chem Soc 138(9):3161–3167
Sanad MMS, Shalan AE, Rashad MM et al (2015) Plasmonic enhancement of low cost mesoporous Fe2O3-TiO2 loaded with palladium, platinum or silver for dye sensitized solar cells (DSSCs)[J]. Appl Surf Sci 359:315–322
Shu Z, Zhang Y, Yang Q et al (2017) Halloysite nanotubes supported Ag and ZnO nanoparticles with synergistically enhanced antibacterial activity[J]. Nanoscale Res Lett 12(1):135
Silva RR d, Yang M, Choi SI et al (2016) Facile synthesis of sub-20 nm silver nanowires through a bromide-mediated polyol method[J]. ACS Nano 10(8):7892–7900
Song YJ, Wang M, Zhang XY et al (2014) Investigation on the role of the molecular weight of polyvinyl pyrrolidone in the shape control of high-yield silver nanospheres and nanowires[J]. Nanoscale Res Lett 9(1):17
Tanaka A, Nishino Y, Sakaguchi S et al (2013) Functionalization of a plasmonic Au/TiO2 photocatalyst with an Ag co-catalyst for quantitative reduction of nitrobenzene to aniline in 2-propanol suspensions under irradiation of visible light[J]. Chem Commun 49(25):2551–2553
Tian L, Xia K, Hu W et al (2017) A wide linear range and stable H2O2 electrochemical sensor based on Ag decorated hierarchical Sn3O4[J]. Electrochim Acta 231:190–199
Trung TN, Arepalli VK, Gudala R et al (2017) Polyol synthesis of ultrathin and high-aspect-ratio Ag nanowires for transparent conductive films[J]. Mater Lett 194:66–69
Wang C, Cheng B, Zhang H et al (2016) Probing the seeded protocol for high-concentration preparation of silver nanowires[J]. Nano Res 9(5):1532–1542
Xue J, Ma S, Zhou Y et al (2015) Fabrication of porous g-C3N4/Ag/Fe2O3 composites with enhanced visible light photocatalysis performance[J]. RSC Adv 5(72):58738–58745
Yang S, Nie C, Liu H et al (2013) Facile synthesis and catalytic application of Ag-Fe2O3-carbons nanocomposites[J]. Mater Lett 100:296–298
Yee MSL, Khiew PS, Lim SS et al (2017) Enhanced marine antifouling performance of silver-titania nanotube composites from hydrothermal processing[J]. Colloids Surf A Physicochem Eng Asp 520:701–711
Zhan K, Su R, Bai S et al (2016) One-pot stirring-free synthesis of silver nanowires with tunable lengths and diameters via a Fe3+ & Cl− co-mediated polyol method and their application as transparent conductive films[J]. Nano 8(42):18121–18133
Zhang X, Li H, Wang S et al (2014) Improvement of hematite as photocatalyst by doping with tantalum[J]. J Phys Chem C 118(30):16842–16850
Zhou X, Xiao Y, Wang M et al (2015) Highly enhanced sensing properties for ZnO nanoparticle-decorated round-edged α-Fe2O3 hexahedrons[J]. ACS Appl Mater Interfaces 7:8743–8749
Zou M, Li J, Wen WW et al (2014) Silver-incorporated composites of Fe2O3 carbon nanofibers as anodes for high-performance lithium batteries[J]. J Power Sources 270:468–474
Acknowledgements
This work was supported by the National Natural Science Foundation of China (no. 51171133, no. 51471122, and no. 51601136) and the Key Program of Natural Science Foundation of Hubei Province of China (no. 2015CFA128).
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Lei, R., Ni, H., Chen, R. et al. Ag nanowire-modified 1D α-Fe2O3 nanotube arrays for photocatalytic degradation of methylene blue. J Nanopart Res 19, 378 (2017). https://doi.org/10.1007/s11051-017-4055-8
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DOI: https://doi.org/10.1007/s11051-017-4055-8