Synthesis and x-ray diffraction characterization of nanocrystalline ZnO obtained by Pechini method

Barros, Bráulio Silva; Barbosa, Renata; Santos, N. R. dos; Barros, Thierry S.; Souza, Moisés Alves de

doi:10.1134/s0020168506120119

Cited by 26 publications

(23 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The ZnO resin precursor was obtained by a modified sol-gel Pechini method [29]. ZnO resin was synthetized dissolving citric acid (72.05 g) in deionized water (200 mL), and subsequently, nitric acid (15.00 mL) was added to the mixture with zinc oxide (10.17 g).…”

Section: Synthesis and Deposition Of Zno Thin Filmmentioning

confidence: 99%

Zinc oxide surface functionalization and related effects on corrosion resistance of titanium implants

Trino

Dias

Albano

et al. 2018

Ceramics International

View full text Add to dashboard Cite

Important clinical concerns in orthopedics and dental implantology are associated with a significant release of titanium (Ti) metal ions and debris due to the low corrosion resistance of this material. Chemical modifications on Ti surfaces have been performed in order to minimize effects of corrosion. In this contribution, zinc oxide (ZnO) thin films were deposited onto Ti surfaces and functionalized with four different organic bifunctional molecules in order to increase the corrosion resistance. SEM and XPS indicated the formation of nanostructured ZnO thin film with hydroxyl groups available for covalent functionalization. The adhesion mechanism analyzed by XPS suggest that the attachment on ZnO occurs by carboxylic acid, silane, thiol and hydroxyl groups for 4aminophenylpropionic acid (APPA), 3-aminopropyltrimetoxysilane (APTMS), 3-mercaptopropionic acid (MPA), and polyethylene glycol (PEG) molecules. Electrochemical analysis for the functionalized ZnO specimens with APPA showed noble open circuit potentials (−0.2 V) and significant decrease in the corrosion current density (5.3 × 10 −7 A/cm 2) when compared to the values obtained for pristine Ti (−0.56 V and 2.3 × 10 −6 A/cm 2), indicating a promising material for applications in biomedical fields.

show abstract

Section: Synthesis and Deposition Of Zno Thin Filmmentioning

confidence: 99%

Zinc oxide surface functionalization and related effects on corrosion resistance of titanium implants

Trino

Dias

Albano

et al. 2018

Ceramics International

View full text Add to dashboard Cite

show abstract

“…Characterization of the Photocatalyst. The XRD patterns of the samples ZnO-NaOH and ZnO-urea, presented in Figure 3, indicate well-crystallized solids, exhibiting the main peaks due to zinc oxide phase, as filed in JCPDS: 89-7102 [20] and no impurity phases. The peaks are somehow sharper and higher for the sample obtained with urea, indicating a more uniform and better-crystallized solid.…”

Section: Resultsmentioning

confidence: 88%

Photocatalytic Treatment of Rhodamine 6G in Wastewater Using Photoactive ZnO

Lutic

Coromelci

Creţescu

et al. 2012

International Journal of Photoenergy

View full text Add to dashboard Cite

The photocatalytic activity of zinc oxide, prepared by precipitation followed by calcination, was tested using rhodamine 6G as a rebel organic compound. The experiments were planned in order to allow an optimization procedure, by investigating the effects of different parameters such as the preparative method of the solid, amount of photocatalyst, pH of the reaction medium, and initial concentration of the dye. The results were compared with those obtained on P-25 Titania, and one of the samples had similar performances in terms of dye degradation degree, but needed higher pH values to prevent the photocatalyst degradation.

show abstract

“…Ayrıca, 450°C sıcaklıkta sentezlenen ZnO nanopartiküller ortalama 50 nm çapa sahipken, 800 °C sıcaklıkta sentezlenen ZnO nanopartiküller ortalama 200 nm çapa sahiptir. Bu da kalsinasyon sıcaklığı arttıkça partikül büyüklüğünün arttığını göstermektedir (Barros, 2006). …”

Section: Sem Analizleriunclassified

“…(Amir, 2012., Frederickson, 2005. Çinko oksit üretimi için hidrotermal (Jiaguo, 2008), kimyasal buhar biriktirme (Driess, 2003), sol-jel (Reda, 2010), termal ayrışma (Khalil, 2013), Pechini (Barros, 2006), elektrokimyasal çöktürme (Zi, 2014), kimyasal çöktürme (Farid, 2012) gibi çeşitli yöntemler kullanılmaktadır. Bu yöntemler arasında kimyasal çöktürme yöntemi düşük maliyetli ve pratik bir yöntem olduğundan tercih edilmektedir.…”

Section: Introductionunclassified

Çi̇nko Oksi̇t Nanoparti̇külleri̇ Sentezi̇ Ve Karakteri̇zasyonu

Özbay

Gülce²

2014

Scitech

View full text Add to dashboard Cite

ÖZET: Bu çalışmada, çinko oksit nanopartikülleri Adibik Asit aile çinko asetat reaksiyonundan kimyasal çöktürme yöntemiyle ilk kez üretilmiştir. Çinko Asetat ve Adibik Asit reaksiyonu ile elde edilen malzeme farklı sıcaklıklarında kalsine edilerek kristal büyüklükleri 20-40 nm arasında değişen ZnO nanopartiküllerinin elde edilmiştir. Kalsinasyon sıcaklığının üretilen materyallerin yapılarına etkisini incelemek için XRD, SEM, FT-IR, yöntemleri kullanılmıştır. FT-IR spektrumları üretilen malzemenin ZnO olduğunu kanıtlamıştır. XRD sonuçlarından sentezlenen ZnO nanopartiküllerinin hegzagonal bir yapıya sahip olduğu ve kalsinasyon sıcaklığının artmasıyla kristal yapıda büyüme olduğu belirlenmiştir. SEM fotoğraflarını incelenmesi ile kalsinasyon sıcaklığının morfolojik yapıyı değiştirdiği görülmüştür.

show abstract

Synthesis and x-ray diffraction characterization of nanocrystalline ZnO obtained by Pechini method

Cited by 26 publications

References 8 publications

Zinc oxide surface functionalization and related effects on corrosion resistance of titanium implants

Zinc oxide surface functionalization and related effects on corrosion resistance of titanium implants

Photocatalytic Treatment of Rhodamine 6G in Wastewater Using Photoactive ZnO

Çi̇nko Oksi̇t Nanoparti̇külleri̇ Sentezi̇ Ve Karakteri̇zasyonu

Contact Info

Product

Resources

About