zinc oxide synthesis by sol-gel method

Mater. /TrimBox [0 0 544.252 742.677] DOI: 10.1007/s00723-010-0140-1[Links], [24] Janotti, A. and Van de Walle, C.G., Native point defects in ZnO. The precursor materials were calcined at the calcination temperature (Tc) of 500, 550 and 600 C for 12 hours [4]. /S /URI <>/Border[0 0 0]/P 5 0 R>> 2016-03-23T15:43:36+05:30 >> f#sD3gK%y=02=o2NO0 w4{6Mh6Mh6Mh6Mh6Mh6Mh /BleedBox [0 0 544.252 742.677] For all samples studied, all diffraction peaks were associated with Zinc oxide according to the PDF-Card 36-1451 (2004 PDF2 database) and the structure was a wurtzite type. Accepted: September 21th, 2015. Received in revised form: September 11th, 2015. B. His research areas focus on Seismic prospecting, seismic inversion, seismic modeling and applied computing mathematics. It is an important semiconductor material due to its applications, which include transparent conductive oxides (TCO) [2,3], ultraviolet (UV) blockers, and photocatalysts, among others. elsevier.com endobj 30(3), pp. sol gel /GS0 29 0 R KFx?=%Bg/i\3bd6Gg#[]56["suvMv5+x6[~'2G0~ Bp''B>nj6@5]]TMjCzJp>v /Im0 93 0 R /T1_1 34 0 R a and c do not change significantly with calcination temperature. >> DOI: 10.1103/PhysRevB.72.113201[Links], [16] Montenegro-Hernndez, A. y Rodrguez-Pez, J.E., Sntesis xido de estao altamente reactivo utilizando como precursor etilhexanoato de estao. /C [0 0 0] >> /ExtGState << /Im0 41 0 R /Annots [14 0 R 15 0 R 16 0 R] /CS11 [/Indexed /DeviceCMYK 226 53 0 R] /Contents 44 0 R endobj By continuing you agree to the use of cookies. 39(1), pp. endobj <>/Border[0 0 0]/P 5 0 R>> trailer <<689E7BEBDE8C43168487322D1722C705>]>> startxref 0 %%EOF 72 0 obj <>stream /ModDate (D:20160323154336+05'30') The obtained ZnO nanoparticles are homogenous and consistent in size which corresponds to the XRD result that exhibit good crystallinity. Nano Lett. http://dx.doi.org/10.1016/j.proche.2016.03.095 65(12), pp. /Type /Page Lett. [Links], [19] Caglar, Y., Sol-gel derived nanostructure undoped and cobalt doped ZnO: Structural, optical and electrical studies J. >> /T1_3 33 0 R /Type /Annot /T1_1 34 0 R N.N. >> endobj /GS1 28 0 R However, samples calcinated at 600 C have higher crystallinity. 1, pp. endobj /Im11 67 0 R Defects in the structure disappear when the calcination temperature is increased. The results for Dsare shown in Table 2, and Ds values are nanometric. Hasnidawani noindex J. Nanopart. mafacostahu@unal.edu.co b Departamento de Geociencias. >> /XObject << DOI: 10.1016/S0167-577X(01)00521-3[Links], [10] Wu, J.J. and Liu, S.C., Low-temperature growth of well-aligned ZnO nanorods by chemical vapor deposition. /Length 1358 /Font << elsevier.com Zinc oxide plays an important role in current industry due to its special characteristics such as anti-corrosion, anti-bacteria, has low electrons conductivity and excellent heat resistance. H\n@E|E/E Yrp"y13Aj~rLK6S]}Pynr840c1\kl;Sg]3onp?bbjus'pk15Vspat{HkWa nBSE]>,\v86tHH~?o[%}VZ\WXXX/zald{E"t].BE"tKKSSSSSSSS#2GeE7 }077{2enp7w3Gyfby0 ]>uFV` 2' endstream endobj 55 0 obj <> endobj 56 0 obj <>stream >> endobj He is a reviewer of the following scientific journals: ESRJ, Revista da SBGf, J.Appl. Citric acid C6H8O7H2O (Panreac) was used as a complexing agent. The open structure also influences the nature of defects and the diffusion mechanism. 373-376, 2010. 432-436, 2002. 2), and n is the number of used diffraction peaks, which in our case was 3 associated with the planes (100), (002) and (101). 16 0 obj /Im5 84 0 R 7 0 obj << << >> The lattice parameters a and c as well as cell volume (V) were calculated by the Rietveld method, using the Fullprof program [22]. Geophysics and CT&F. endobj /CS0 [/Separation /Black /DeviceCMYK 27 0 R] [Date of reference 13th October of 2015]. 29(1), pp. >> 3 shows the EPR spectra for the Zinc oxide samples that are calcinated at three different temperatures. 3 0 obj Alloys. This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. >> /ProcSet [/PDF /Text /ImageC /ImageI] /CS1 [/Separation /Black /DeviceCMYK 45 0 R] /C [0 0 0] elsevier.com DOI: 10.1002/1521-4095(20020205)14:3<215::AID-ADMA215>3.0.CO;2-J[Links], [11] Wang, R.C. /Im8 87 0 R 15 0 obj /GS1 28 0 R /T1_3 35 0 R /F 0 nanopowder We use cookies to help provide and enhance our service and tailor content and ads. vf\^Sa-sN-}dtw[5%T;]m3M$dM /GS0 29 0 R /T1_2 32 0 R Colombia. ZnO nanoparticles were characterized by using XRD, EDX, FESEM, and nano-particles analyser. /T1_0 34 0 R 14, pp. /ProcSet [/PDF /Text /ImageC /ImageI] endobj >> 0+ 72(3), pp. /Im3 43 0 R 0000001646 00000 n Colombia. The band corresponding to ~ 2400 cm-1 is associated with CO2 molecules that are adsorbed on the surface of ZnO [17,18]. endstream Nanoparticles of Zinc oxide were prepared by the sol-gel (citrate route) method using Zinc Nitrate, Zn(NO3)26H2O (Panreac) as the starting materials. /MC0 39 0 R /URI (http://crossmark.crossref.org/dialog/?doi=10.1016/j.proche.2016.03.095&domain=pdf) Fig. :ev[An* In this work, pure zinc oxide was synthesized using the sol-gel method (citrate route) at various calcination temperatures. /BleedBox [0 0 544.252 742.677] /CropBox [0 0 544.252 742.677] /Type /Page Colombia. /Im7 86 0 R attributed these lines to shallow donors, which show a slight anisotropy because of the Wurtzite type crystal structure of zinc oxide [26]. /CS1 [/Indexed /DeviceRGB 2 90 0 R] endobj His research interests include: Chemical synthesis process of inorganic materials (oxides), characterization techniques (XRD, EPR, IR, UV-vis) as well as electrochemical methods for materials synthesis and characterization. 679-689, 2008. ZnO is a relatively open structure with a hexagonal-close-packed lattice where Zn atoms occupy half of the tetrahedral sites, while all octahedral sites are empty [6]. Version 5.30. 0000087413 00000 n Bogot. Peer-review under responsibility of School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia. /T1_0 30 0 R /Im24 81 0 R DOI: 10.1016/j.mseb.2009.03.020[Links], [22] Rodrguez-Carvajal, J., Fullprof suite software: Crystallographic tools for rietveld, profile matching and integrated intensity refinements for X-ray and/or neutron data. Procedia Chemistry, 19 (2016) 211-216. doi:10.1016/j.proche.2016.03.095 2010-04-23 /ViewerPreferences << /ExtGState << Two small bands are observed at 2920 and 2850 cm-1, possibly due to -CH2 groups belonging to the metal-organic chain formed during synthesis [18]; these are small residues and the bands are not intense. 7 0 obj /ProcSet [/PDF /Text /ImageC /ImageI] 2 shows diffractograms for ZnO samples as well as the precursor material studied at different calcinations temperatures. /CropBox [0 0 544.252 742.677] /T1_1 34 0 R 13 0 obj ORCID: 0000-0002-7470-9202, O. Almanza-Montero, received his PhD. 211-216 /CS3 [/Indexed /DeviceCMYK 244 56 0 R] 39-42, 2013. >> /Font << /F7 36 0 R <>/Border[0 0 0]/P 5 0 R>> Compd. /XObject << 560, pp. Sweep time was 18.6860 s. The EPR spectra were carried out on a Bruker X-band spectrometer ESP-300 at different temperatures. /Font << 497(1-2), pp. and Dinescu, M., Properties of ZnO thin films prepared by radio-frequency plasma beam assisted laser ablation. 0000001757 00000 n >> /ColorSpace << /Im1 42 0 R /URI (http://crossmark.crossref.org/dialog/?doi=10.1016/j.proche.2016.03.095&domain=pdf) /GS1 28 0 R 0000087165 00000 n The ratio c/a shows the deviation that crystalline structure of the samples presented with respect to the theoretical network hcp (hexagonal compact packing, the value of which is 1.633). /Subtype /Link /ProcSet [/PDF /Text /ImageC /ImageI] Universidad Nacional de Colombia. /TrimBox [0 0 544.252 742.677] /Rotate 0 Rev. True /GS0 29 0 R Some authors have associated these lines to defects in Zinc oxide [4]. << /Rect [0.0 714.49304 544.252 742.677] >> oaalmanzam@unal.edu.co. ZnO nanoparticles were successfully synthesized by sol-gel method in nanosize range within 81.28nm to 84.98nm. >> 0000001174 00000 n /D [7 0 R /FitH null] /Im0 103 0 R 76(16), pp. 0000007316 00000 n /TT2 99 0 R true /MediaBox [0 0 544.252 742.677] /GS0 29 0 R <>/Border[0 0 0]/P 5 0 R>> 1 0 obj /Im1 94 0 R /Rect [106.941 658.077 143.429 702.231] application/pdf endobj Mater. Mat. 17 0 obj 9 0 obj /OpenAction 3 0 R endobj /Nums [0 8 0 R] 6 0 obj Appl Magn Reson. <>/Border[0 0 0]/P 5 0 R>> DOI: 10.1016/j.tsf.2006.12.125[Links], [3] Becheri, A., Durr, M., Lo Nostro, P. and Baglioni, P., Synthesis and characterization of zinc oxide nanoparticles: Application to textiles as UV absorbers. 8 0 obj /GS0 29 0 R Adv. /MediaBox [0 0 544.252 742.677] 94, pp. /Im19 75 0 R /T1_0 30 0 R ZnO 2 0 obj /T1_5 35 0 R 5349-5355, 2001. 11 0 obj journal Eng. /CS5 [/Indexed /DeviceCMYK 201 58 0 R] /Font << << /ElsevierWebPDFSpecifications (6.5) /CS0 [/Separation /Black /DeviceCMYK 27 0 R] 42-47, 2005. 241-245, 2009. He regularly uses the following characterization techniques: (XRD, EPR, IR, UV-vis). /GS1 28 0 R /CropBox [0 0 544.252 742.677] /Resources << /Kids [7 0 R 9 0 R 10 0 R 11 0 R 12 0 R 13 0 R] /MC1 40 0 R /CS0 [/Separation /Black /DeviceCMYK 27 0 R] 0000001273 00000 n 2-6, 2013. 329, pp. 13 0 obj /Subtype /Link endobj /Filter /FlateDecode 1 0 obj >> The formation of zinc oxide phase was confirmed by XRD, which showed that from 500 C it had this type of Wurtzite structure. << ixTCSpFV]D0o!^CIB!22V, Synthesis of ZnO Nanostructures Using Sol-Gel Method, Procedia Chemistry, 19 (2016) 211-216. doi:10.1016/j.proche.2016.03.095. /C2_0 91 0 R X-ray diffraction measurements were performed on a diffractometer Panalytical Pro MPD using polycrystalline silicon as a calibration standard in 2q range of 10-90, and using CuKa1 radiation and a step size (2q) of 0.0260.

Sitemap 24