Synthesis of novel ZnO/ZnAl2O4 multi co-centric nanotubes and their long-term stability in photocatalytic application

Based on the Kirkendall effect, novel double, triple and quadruple co-centric nanotubes of ZnO/ZnAl2O4 have been successfully fabricated by combining the two techniques of electrospinning and atomic layer deposition. The as-prepared samples were annealed at 900 °C under air. Their morphological, structural and optical properties were studied by Scanning Electron Microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Energy-Dispersive X-ray spectroscopy (EDX), UV-visible spectrophotometry, Raman spectroscopy, photoluminescence (PL) and reflectance emission. The performances and long-term stability of these multi co-centric nanotubes for photocatalytic applications have been evaluated under the same conditions. As result, in the photodegradation of methyl orange (MO) under UV irradiation, the triple and quadruple co-centric nanotubes of ZnO/ZnAl2O4 exhibit a higher photodegradation efficiency (94% and 99%, respectively) in repeated and long-term applications compared to the pure ZnO which has very low long-term photocatalytic stability. Thus, the fact of coupling these two semiconductors ensured a high photocatalytic activity and long term stability.

[1]  R. Sarpong,et al.  Bio-inspired synthesis of xishacorenes A, B, and C, and a new congener from fuscol† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c9sc02572c , 2019, Chemical science.

[2]  F. Dejene,et al.  Effect of annealing temperature on structural and optical properties of ZnAl2O4:1.5% Pb2+ nanocrystals synthesized via sol-gel reaction , 2016 .

[3]  R. Habchi,et al.  Tunable properties of GO-doped CoFe2O4 nanofibers elaborated by electrospinning , 2015 .

[4]  J. Hwang,et al.  Nano carbon conformal coating strategy for enhanced photoelectrochemical responses and long-term stability of ZnO quantum dots , 2015 .

[5]  A. Julbe,et al.  Highly crystalline MOF-based materials grown on electrospun nanofibers. , 2015, Nanoscale.

[6]  M. Bechelany,et al.  ZnO 1D nanostructures designed by combining atomic layer deposition and electrospinning for UV sensor applications , 2014 .

[7]  M. Mazutti,et al.  Synthesis of zinc aluminate (ZnAl2O4) spinel and its application as photocatalyst , 2014 .

[8]  Yulia O. Ogorodniichuk,et al.  Application of Room Temperature Photoluminescence From ZnO Nanorods for Salmonella Detection , 2014, IEEE Sensors Journal.

[9]  R. Viter,et al.  Evolution of microstructure and related optical properties of ZnO grown by atomic layer deposition , 2013, Beilstein journal of nanotechnology.

[10]  Sailong Xu,et al.  Enhanced photocatalytic performances of hierarchical ZnO/ZnAl2O4 microsphere derived from layered double hydroxide precursor spray-dried microsphere. , 2013, Journal of colloid and interface science.

[11]  F. Fang,et al.  The formation and acceptor related emission behavior of ZnO/ZnAl2O4 core–shell structures , 2013 .

[12]  P. Du,et al.  Photocatalytic degradation of Rhodamine B using electrospun TiO2 and ZnO nanofibers: a comparative study , 2013, Journal of Materials Science.

[13]  Ashutosh Sharma,et al.  Reusable electrospun mesoporous ZnO nanofiber mats for photocatalytic degradation of polycyclic aromatic hydrocarbon dyes in wastewater. , 2013, Journal of colloid and interface science.

[14]  Yahui Yang,et al.  Fabrication and photocatalytic properties of spheres-in-spheres ZnO/ZnAl2O4 composite hollow microspheres , 2013 .

[15]  Xinyong Li,et al.  Photocatalytic performances and activities of ZnAl2O4 nanorods loaded with Ag towards toluene , 2012 .

[16]  Nicola Pinna,et al.  Atomic Layer Deposition of Nanostructured Materials for Energy and Environmental Applications , 2012, Advanced materials.

[17]  A. Sharma,et al.  Moisture-Induced Surface Corrosion in AZO Thin Films Formed by Atomic Layer Deposition , 2012, IEEE Transactions on Device and Materials Reliability.

[18]  Sailong Xu,et al.  Fabrication and photocatalytic properties of novel ZnO/ZnAl2O4 nanocomposite with ZnAl2O4 dispersed inside ZnO network , 2012 .

[19]  E. Aydil,et al.  TiO2-B/anatase core-shell heterojunction nanowires for photocatalysis. , 2011, ACS applied materials & interfaces.

[20]  H. Dixit,et al.  Electronic structure and band gap of zinc spinel oxides beyond LDA: ZnAl2O4, ZnGa2O4 and ZnIn2O4 , 2011 .

[21]  Xinghua Li,et al.  Electrospun nanofibers of p-type NiO/n-type ZnO heterojunctions with enhanced photocatalytic activity. , 2010, ACS applied materials & interfaces.

[22]  P. Fornasiero,et al.  Photocatalytic decolourization of dyes on NiO–ZnO nano-composites , 2009, Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology.

[23]  Susumu Yoshikawa,et al.  Photocatalytic activity for hydrogen evolution of electrospun TiO2 nanofibers. , 2009, ACS applied materials & interfaces.

[24]  Peng Wang,et al.  Highly Photocatalytic ZnO/In2O3 Heteronanostructures Synthesized by a Coprecipitation Method , 2009 .

[25]  Lirong Zheng,et al.  Network structured SnO2/ZnO heterojunction nanocatalyst with high photocatalytic activity. , 2009, Inorganic chemistry.

[26]  S. Doh,et al.  Development of photocatalytic TiO2 nanofibers by electrospinning and its application to degradation of dye pollutants. , 2008, Journal of hazardous materials.

[27]  B. Ohtani.  Preparing Articles on Photocatalysis : Beyond the Illusions, Misconceptions, and Speculation , 2008 .

[28]  M. Zacharias,et al.  Influence of Temperature on Evolution of Coaxial ZnO/Al2O3 One-Dimensional Heterostructures : From Core-Shell Nanowires to Spinel Nanotubes and Porous Nanowires , 2008 .

[29]  Jiaguo Yu,et al.  Template-free hydrothermal synthesis of CuO/Cu2O composite hollow microspheres , 2007 .

[30]  U. Gösele,et al.  Influence of surface diffusion on the formation of hollow nanostructures induced by the Kirkendall effect: the basic concept. , 2007, Nano letters.

[31]  A. Alivisatos,et al.  Colloidal Synthesis of Hollow Cobalt Sulfide Nanocrystals , 2006 .

[32]  Qiguang Li,et al.  Photoconductive cadmium sulfide hemicylindrical shell nanowire ensembles. , 2005, Nano letters.

[33]  Yuliang Wang,et al.  Monodisperse Spherical Colloids of Pb and Their Use as Chemical Templates to Produce Hollow Particles , 2005 .

[34]  T. Albanis,et al.  TiO2-assisted photocatalytic degradation of azo dyes in aqueous solution: kinetic and mechanistic investigations A review , 2004 .

[35]  M. Zawadzki,et al.  A method for obtaining thymol by gas phase catalytic alkylation of m-cresol over zinc aluminate spinel , 2001 .

[36]  M. Bettahar,et al.  In situ FT-IR and kinetic study of methanol synthesis from CO2/H2 over ZnAl2O4 and Cu-ZnAl2O4 catalysts , 1998 .

[37]  J. Lábár,et al.  Kirkendall voids and the formation of amorphous phase in the Al-Pt thin-film system prepared by high-temperature successive deposition , 1996 .

[38]  M. N. Alaya,et al.  Effect of thermal treatment on the structural, textural and catalytic properties of the ZnO-Al2O3 system , 1995 .

[39]  Schroeder,et al.  Micromechanism for metallic-glass formation by solid-state reactions. , 1985, Physical review letters.

[40]  R. Stephenson.  A and V , 1962, The British journal of ophthalmology.

[41]  R. Viter,et al.  Photoluminescence: A very sensitive tool to detect the presence of anatase in rutile phase electrospun TiO2 nanofibers , 2015 .

[42]  W. Marsden.  I and J , 2012 .

[43]  V. Ciupină,et al.  Characterization of ZnAl2O4 nanocrystals prepared by coprecipitation and microemulsion techniques , 2004 .

[44]  G. Winterstein,et al.  Perovskite-type oxide monolithic catalysts for combustion of chlorinated hydrocarbons , 1999 .