2012
DOI: 10.1155/2012/427172
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Urea-Based Synthesis of Zinc Oxide Nanostructures at Low Temperature

Abstract: The preparation of nanometer-sized structures of zinc oxide (ZnO) from zinc acetate and urea as raw materials was performed using conventional water bath heating and a microwave hydrothermal (MH) method in an aqueous solution. The oxide formation is controlled by decomposition of the added urea in the sealed autoclave. The influence of urea and the synthesis method on the final product formation are discussed. Broadband photoluminescence (PL) behavior in visible-range spectra was observed with a maximum peak c… Show more

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Cited by 59 publications
(29 citation statements)
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References 46 publications
(39 reference statements)
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“…Then two different heating methods were applied: microwave hydrothermal (MH) method and waterbath heating. XRD proved the purity of the wurtzite phase for both methods, while FE-SEM showed a difference in shape regularity in favor of the MH process; thus, the MH method contributes to the production of spherical and uniform particles after a short processing time by enhancing the interface mobility and the diffusivity in the medium [162].…”
Section: Low Temperature Synthesis Of Zno Nanostructuresmentioning
confidence: 91%
“…Then two different heating methods were applied: microwave hydrothermal (MH) method and waterbath heating. XRD proved the purity of the wurtzite phase for both methods, while FE-SEM showed a difference in shape regularity in favor of the MH process; thus, the MH method contributes to the production of spherical and uniform particles after a short processing time by enhancing the interface mobility and the diffusivity in the medium [162].…”
Section: Low Temperature Synthesis Of Zno Nanostructuresmentioning
confidence: 91%
“…Subsequently in the alkaline bath, the simultaneous chain reactions result in the formation of unstable Zn 5 (CO 3 ) 2 (OH) 6 complex by following reactions [26,27]:…”
Section: Materials Characterizationsmentioning
confidence: 99%
“…Исследования осаждения основного карбоната цинка [6] проводили, используя в качестве исходного раствора ацетат цинка, который смешивали с карбами-дом в стехиометрическом соотношении 1:1 и вводили добавку KOH для достижения значения pH=12, для ускорения процесса образования основного карбоната цинка из гидроксида смесь подвергают действию ми-кроволнового облучения в течении нескольких минут.…”
Section: анализ литературных данных и постановка проблемыunclassified
“…Так, при температуре 96-98 °С разлагаются карбонаты аммония и CO 2 покидает раствор [11], что существенно затрудняет образование гидроксокарбо-натов в реакциях осаждения карбамидом. Эта пробле-ма затронута в работах [5,6], где авторы предприняли дополнительные меры по ускорению процесса обра-зования карбонатов. Анализ степени выделения СО 2 показывает уменьшение его количества в растворе при 100 °С по сравнению с 90 °С.…”
Section: анализ кинетики накопления продуктов гидролиза в раствореunclassified