Polymer-salt synthesis and characterization of MgO-ZnO ceramic coatings with the high transparency in UV spectral range

Evstropiev, S. K.; Сошніков, І. П.; Колобкова, Е. В.; Evstropyev, K.S.; Никоноров, Н. В.; Khrebtov, A. I.; Дукельский, К. В.; Kotlyar, K. P.; Орешкина, К. В.; Nashekin, A.V.

doi:10.1016/j.optmat.2018.05.029

Cited by 27 publications

(18 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Высушенные образцы подвергались термообработке при 550 • С. Использованный режим термообработки обеспечивает полное разложение нитратов металлов и ПВП и удаление газообразных продуктов [29].…”

Section: материалы и методыunclassified

Влияние УФ Облучения На Формирование Молекулярных Кластеров Серебра И Их Стабилизация В Растворах, Композиционных И Оксидных Покрытиях

Евстропьев

Никоноров²,

Саратовский³

et al. 2020

Журнал Технической Физики

View full text Add to dashboard Cite

The influence of UV irradiation on the formation of Ag molecular clusters in aqueous solutions containing metals (Zn,Mg,Ag) nitrates and polyvinylpyrrolidone has been studied. Optical and luminescence spectroscopy, scanning electron microscopy were used in this study. It was found that UV irradiation significantly accelerates Ag ions reduction and Ag molecular clusters and nanoparticle formation.

show abstract

Section: материалы и методыunclassified

Влияние УФ Облучения На Формирование Молекулярных Кластеров Серебра И Их Стабилизация В Растворах, Композиционных И Оксидных Покрытиях

Евстропьев

Никоноров²,

Саратовский³

et al. 2020

Журнал Технической Физики

View full text Add to dashboard Cite

show abstract

“…Полученные значения E g для покрытий 1 и 2, не содержащих серебра, были близки и составляли 4.51 eV, что заметно превосходит величину E g макроскопических кристаллов оксида цинка (∼ 3.37 eV [35]). Это может быть связано как с небольшим изменением химического состава покрытий при введении в их состав MgO, так и с незавершенностью процессов структурообразования материалов покрытий [36]. да [41], может быть использовано уравнение:…”

Section: приведеныunclassified

“…В [36,42,43] уравнение (4) было применено для описания характера изменения E g в двухкомпонентных композиционных материалах ZnO−MgO. В [36,43] На рис. 6 приведены спектры фотолюминесценции полученных покрытий в ближней ИК области спектра при возбуждении светом с длиной волны λ ex = 370 и 405 nm.…”

Section: приведеныunclassified

Прозрачные фотоактивные ZnO-MgO-Ag-=SUB=-2-=/SUB=-O-покрытия на стеклах

Евстропьев¹,

Никоноров²,

Киселев³

et al. 2019

Журнал Технической Физики

View full text Add to dashboard Cite

Transparent ZnO–MgO–Ag_2O coatings are formed on glasses by the polymer–salt method, and the optical properties of these coatings are studied. The optical properties of the films are studied by optical spectroscopy and photoluminescence. The structure of the oxide coatings is studied by X-ray diffraction analysis and scanning electron microscopy. It is found that an increase in the silver concentration in the coatings leads to a decrease in the band gap width of the material. It is shown that the films are characterized by a high transparency in the visible spectral region and can generate singlet oxygen under action of UV radiation (370 nm) and blue light (405 nm).

show abstract

“…It was found that the bi-functional system of Mg and Zn exhibited a synergetic interaction that is effective for enhancing both catalytic activity and stability towards transesterification. Different synthetic methods such as the sol-gel method [25], pulsed-laser deposition [26], and thermal decomposition [27] have been employed for the synthesis of MgO-ZnO mixed metal oxides. However, they usually involve complicated synthetic procedures, comparatively high temperature, and expensive equipment.…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Zn/MgO Hexagonal Nano-Plates as a Catalyst for Camelina Oil Biodiesel Synthesis

et al. 2021

View full text Add to dashboard Cite

A novel mesoporous Zn/MgO hexagonal-nano-plate catalyst was synthesized by a simple template-free hydrothermal method and applied in the base-catalyzed transesterification of Camelina oil for biodiesel synthesis. The Zn/MgO catalyst calcinated at 873 K exhibited the highest catalytic activity with a yield of 88.7%. This catalytic reaction was performed using 3% w/w of the catalyst with a methanol-to-oil molar ratio of 24:1 at 393 K in 8 h. The excellent catalytic performance is possibly attributed to its favorable textural features with relatively high surface area (69.1 m2 g−1) and appropriate size of the mesopores (10.4 nm). In addition, the as-synthesized catalyst demonstrated a greater basic sites density than single mesoporous MgO, which might have been promoted by the addition of Zn, leading to a synergetic interaction that enhanced its catalytic activity. This catalytic system demonstrated high stability for five catalytic runs and catalytic activity with over 84% yield.

show abstract

Polymer-salt synthesis and characterization of MgO-ZnO ceramic coatings with the high transparency in UV spectral range

Cited by 27 publications

References 31 publications

Влияние УФ Облучения На Формирование Молекулярных Кластеров Серебра И Их Стабилизация В Растворах, Композиционных И Оксидных Покрытиях

Влияние УФ Облучения На Формирование Молекулярных Кластеров Серебра И Их Стабилизация В Растворах, Композиционных И Оксидных Покрытиях

Прозрачные фотоактивные ZnO-MgO-Ag-=SUB=-2-=/SUB=-O-покрытия на стеклах

Mesoporous Zn/MgO Hexagonal Nano-Plates as a Catalyst for Camelina Oil Biodiesel Synthesis

Contact Info

Product

Resources

About