New infrared-assisted method for sol-gel derived ZnO:Ag thin films: Structural and bacterial inhibition properties

González-Penguelly, Brenely; Morales-Ramírez, Ángel de Jesús; Rodríguez-Rosales, M. G.; Rodríguez-Nava, Odín; Jota, María Luz Carrera

doi:10.1016/j.msec.2017.03.274

Cited by 10 publications

(5 citation statements)

References 44 publications

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“…Similar morphologies have been observed in other yttrium vanadate films [49]. Finally, it is important to note that this preferential growth of the films is probably the product of the presence of Pluronic F-127 and diethylene glycol, which, as evaporate, would promote the formation of some pores [50,51].…”

Section: Photoluminescence Studysupporting

confidence: 76%

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Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

et al. 2022

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Nowadays, orthovanadates are studied because of their unique properties for optoelectronic applications. In this work, the LuVO4:Eu3+, Bi3+ films were prepared by the sol–gel method, using a new simple route, and deposited by the dip-coating technique. The obtained films are transparent, fracture-free, and homogenous. The sol–gel process was monitored by Fourier-transform infrared spectroscopy (FTIR), and according to X-ray diffraction (XRD) results, the crystal structure was tetragonal, and films that were highly oriented along the (200) low-energy direction were obtained. The morphological studies by scanning electron microscopy (SEM) showed uniformly distributed circular agglomerations of rice-like particles with nanometric sizes. The luminescence properties of the films were analyzed using a fixed concentration of 2.5 at. % Eu3+ and different concentrations of Bi3+ (0.5, 1.0, and 1.5 at. %); all the samples emit in red, and it has been observed that the light yield of Eu3+ is enhanced as the Bi3+ content increases when the films are excited at 350 nm, which corresponds to the 1S0→3P1 transition of Bi3+. Therefore, a highly efficient energy transfer mechanism between Bi3+ and Eu3+ has been observed, reaching up to 71%. Finally, it was established that this energy transfer process occurs via a quadrupole–quadrupole interaction.

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Section: Photoluminescence Studysupporting

confidence: 76%

“…% Bi 3+ film, deposited and annealed at 700 • C (Figure 5a) and 1000 • C (Figure 5b) at 10,000×. preferential growth of the films is probably the product of the presence of Pluronic F-127 and diethylene glycol, which, as evaporate, would promote the formation of some pores [50,51].…”

Section: Morphological Studiesmentioning

confidence: 99%

Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

et al. 2022

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“…El material fotocatalítico fue sintetizado a través del método sol-gel similar a los descritos por García-Alamo et al (2013), Cruz-Reyes et al (2014), Rodríguez-Nava et al (2016) y González-Penguelly et al (2017. Para la síntesis de las partículas de ZnO se preparó un sol con 50 mL de acetato de zinc de FAGA Lab con 98 % de pureza a 0.02 M y trietanolamina del fabricante J.T.…”

Section: Síntesis Y Caracterización De Las Nanopartículas De Zno Y Zn...unclassified

Degradación de fármacos mediante fotocatálisis con nanopartículas de ZnO

Gallardo-Monroy,

Olivares-Rubio,

Morales-Ramírez

et al. 2023

Rev. Int. Contam. Ambie.

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El incremento del uso de compuestos farmacéuticos es uno de los factores que ha ocasionado un impacto sobre la salud de los ambientes acuáticos. Las tecnologías convencionales de las plantas de tratamiento de aguas residuales han mostrado tener una baja eficiencia para la remoción de estos contaminantes. Para contribuir a resolver este problema, en la presente investigación se evaluó la degradación de los fármacos bezafibrato, gemfibrozil, sulfametoxazol, diclofenaco e indometacina mediante fotocatálisis heterogénea utilizando nanopartículas de óxido de zinc (ZnO) con dopaje de cobalto de 0, 1, 3 y 5 % en peso de cobalto, con diferentes concentraciones (1, 2, 5, 6 y 10 g/L) y tres temperaturas diferentes (25, 40 y 55 ºC) durante la degradación de los fármacos, bajo una radiación UV λ = 375 nm durante cuatro horas de exposición. Se encontró que el dopaje con cobalto disminuyó la velocidad de remoción de los fármacos. Además, la mayor eficiencia de remoción para todos los compuestos evaluados (98.8-100 %), se obtuvo con una concentración de 5 g/L de nanopartículas de ZnO a una temperatura de 25 ºC. Estos hallazgos resultan promisorios debido a las ventajas del ZnO en la remoción de productos farmacéuticos en aguas residuales o en hospitales en donde se realizan las formulaciones para pacientes hospitalizados. No obstante, se requiere continuar con estudios sobre condiciones similares a las reales para determinar la viabilidad de su aplicación.

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“…In most cases, the purpose of the doping is to modulate the optical and or electrical properties of ZnO thin films. Dopants such as Al, Ga, In, B, Ag, and Cl were all expected to enhance the native n type conductivity of ZnO [16][17][18][19][20][21][22] . Dopants like Cd, Mg have been shown to modify the optical properties of ZnO by changing its band gap [23] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Mg Doping on Structural and Optical Properties of Al-Mg Co-doped ZnO Thin Films Deposited via Sol-gel Technique

A¹,

Chaik²,

Jannane³

et al. 2018

Res. Rev. J Mat. Sci

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New infrared-assisted method for sol-gel derived ZnO:Ag thin films: Structural and bacterial inhibition properties

Cited by 10 publications

References 44 publications

Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

Luminescence Properties and Energy Transfer of Eu3+, Bi3+ Co-Doped LuVO4 Films Modified with Pluronic F-127 Obtained by Sol–Gel

Degradación de fármacos mediante fotocatálisis con nanopartículas de ZnO

Effect of Mg Doping on Structural and Optical Properties of Al-Mg Co-doped ZnO Thin Films Deposited via Sol-gel Technique

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