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Photocatalytic properties

Tìm thấy 16+ kết quả cho từ khóa "Photocatalytic properties"

Dependence of hydrothermal time on structural characteristics and photocatalytic properties of SnO2 nanoparticles

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Dependence of Hydrothermal Time. on Structural Characteristics and Photocatalytic Properties of SnO 2 Nanoparticles. Abstract: In this work, SnO 2 nanoparticles were prepared by hydrothermal method using SnCl 4 .5H 2 O and NaOH at 180 °C for different hydrothermal times. The effect of hydrothermal time on the crystal structure, morphology, chemical bonding, and photocatalytic properties of SnO 2.

Physics Doctoral Thesis Abstract: Synthesis and investigation of photocatalytic properties of BiMO (M = V, Ti, Sn) materials

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Preparation of BiVO 4 material, study on the effects of technological conditions on the structure, surface morphology, photocatalytic properties of the material. Preparation of Bi 2 Ti 2 O 7 material, study on the effects of technological conditions on the structure, surface morphology, photocatalytic properties and photocatalytic activities of the material. Present the technological process to control the phase transition of the materials..

Synthesis and characterization of hierarchical CEO2 spherical nanoparticles for photocatalytic degradation of methylene blue

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Thus, four concentrations of MB include 5 ppm, 10 ppm, 15 ppm, and 20 ppm were used to test the photocatalytic properties of CeO 2. The photodegradation of MB versus time using different catalysts: (a) CeO 2 -70, (b) CeO 2 -80 and (c) CeO 2 -90.. The photocatalytic properties of the hierarchical CeO 2 nanospheres (CeO 2 -80) were tested with different concentrations of MB (5 ppm, 10 ppm, 15 ppm, and 20 ppm) as shown in Figure 7.

Characterization and photocatalytic properties of TiO2/chitosan nanocomposites synthesized by hydrothermal process

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Structural and physico-chemical properties of the obtained nanocomposites were characterized by XRD, SEM, BET, FTIR, and particle size analyzer. Complete photodegradation of MG was successfully achieved with the aid of the nanocomposites. The optimum photocatalytic degradation conditions, irradiation time, irradiation power, and amount of catalyst were studied.

The role of some metal ions in enhancement of photocatalytic activity of Fe2O3–V2O5 binary oxide

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It is noteworthy to mention that structural, morphological, optical, and photocatalytic properties of the catalysts provide substantial contribution throughout the photo-catalytic process.. The outcomes of this work imply that using the 1CuO ̶ (FeV-Pure) in the photocatalytic degradation of phenolic compounds enhances the degradability of the wastewater containing chlorophenols. 10.1016/j.apcata . doi: 10.1016/j..

Highly photocatalytic activity of natural halloysite - based material for the treatment of dyes in wastewater

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TiO 2 is a non - toxic material which has been applied in the field of solar energy and especially in environmental treatment because of their strong photocatalytic properties and chemical stability (Amin et al., 2009, Guo et al., 2009). So, narrowing the band - gap energy of TiO 2 to increase the visible light absorption ability is a commonly used method to improve photocatalytic efficiency (Amin et al., 2009).

Effects of ZnO nanoparticles and graphene oxide on properties of acrylic polymer nanocomposite coating

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It is caused by photo-catalytic properties of ZnO nanoparticles.. As above mentioned, using separately GO and ZnO nanoparticles can enhance various properties of composite materials. The GO/ZnO composite was simply prepared by a suspension mixing method [11] or a solution precipitation method [12]. GO can enhance photocatalytic properties of ZnO nanoparticles. Moreover, the GO/ZnO composite expressed superior antibacterial activity [12].

Nghiên cứu tổng hợp vật liệu quang xúc tác nano hệ TiO2 -CeO2 và thăm dò khả năng ứng dụng trong xử lý môi trường

01050001121.pdf

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“Modification of the photocatalytic properties of self doped TiO 2 nanoparticles for hydrogen generation using sunlight type radiation”, International Journal of Hydrogen Energy 34, pp.. (2012), “Synthesis and characterization of CNT/Ce-TiO 2 nanocomposite for phenol degradation”, Journal of Rare Earths 30 (7), pp.. (2009), “Ce-doped TiO 2 for photocatalytic degradation of chlorophenol”, Catalysis Today 144, pp.13-18.. (1996), “An efficient TiO 2 thin film photocatalyst: Photocatalytic properties

Nghiên cứu tổng hợp vật liệu quang xúc tác nano hệ TiO2-CeO2 và thăm dò khả năng ứng dụng trong xử lý môi trường

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“Modification of the photocatalytic properties of self doped TiO 2 nanoparticles for hydrogen generation using sunlight type radiation”, International Journal of Hydrogen Energy 34, pp.. (2012), “Synthesis and characterization of CNT/Ce-TiO 2 nanocomposite for phenol degradation”, Journal of Rare Earths 30 (7), pp.. (2009), “Ce-doped TiO 2 for photocatalytic degradation of chlorophenol”, Catalysis Today 144, pp.13-18.. (1996), “An efficient TiO 2 thin film photocatalyst: Photocatalytic properties

Synthesis and Optical Properties of Cu2O and Au-Cu2O Core-shell Particles

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Huang, Facet-Dependent Optical and Photothermal Properties of Au@Ag-Cu 2 O Core-shell Nanocrystals, Chem. Wang, Au–Cu 2 O Core–Shell Nanoparticles: A Hybrid Metal Semiconductor Heteronanostructure with Geometrically Tunable Optical Properties, Chem. Xu, Plasmon-enhanced photocatalytic properties of Cu 2 O nanowire–Au nanoparticle assemblies, Langmuir pp

Synthesis and electrochemical properties of copper(II), manganese(III) phthalocyanines bearing chalcone groups at peripheral or nonperipheral positions

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Design, syntheses, spectroscopic, aggregation properties of novel peripheral octa-substituted zinc(II), magnesium(II) and lead(II) phthalocyanines and investigation of their photocatalytic properties on the photooxidation of 4-nitrophenol. Kahriman N, Ünver Y, Akçay HT, Gülmez A, Durmuş M et al. Journal of Molecular Structure 2020. Usta A, Yaşar A, Yılmaz N, Güleç C, Yaylı N et al. Synthesis, configuration, and antimicrobial properties of novel substituted and cyclized.

N doping of TiO2 nanocrystal for efficient photodegradation of organic pollutants under ultraviolet and visible light irradiation

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Hydrothermal N-doped TiO 2 : Explaining photocatalytic properties by electronic and magnetic identification of N active sites. Oxidative power of nitrogen-doped TiO 2 photocatalysts under visible illumination.. doi: 10.1021/jp0467090. doi: 10.1021/acssuschemeng.6b01066. Phase-compositional control and visible light photocatalytic activity of nitrogen-doped titania via solvothermal process. doi: 10.1016/j.jssc . XPS spectra of N-doped TiO 2.

Electrophoretic deposition and characterization of self-doped SrTiO3 thin films

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Photocatalytic semiconductors have been potentially used for water splitting. The photocatalytic properties are strongly affected by the potential of the band structure, charge separation, lifetime, and mobility of photogenerated electron and holes. SrTiO 3 is one of the most promising photocatalytic perovskites because of its high resistance against photocorrosion, high thermal stability, low cast, and exceptional optical and electrical properties.

Efficient photodegradation of neutral red chloride dye in aqueous medium using graphene/cobalt–manganese oxides nanocomposite

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The photocatalytic properties of the synthesized GNs/Co-Mn photocatalyst were studied by degrading NRC in aqueous medium under sunlight as a function of time. Figure 3 shows the UV/vis spectra of NRC in aqueous medium before and after sunlight irradiation. The spectra showed that the photodegradation of NRC in the presence of GNs/Co-Mn gradually increased with an increase in irradiation time, which is also clear from Figure 4.

Nghiên Cứu Chế Tạo Màng Mỏng Tio2 Nhằm Cho Mục Tiêu Ứng Dụng Quang Xúc Tác

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‰;n L& Ltudy on photocatalytic oxidation of p-chlorophenol with transition metal-doped TiO 2 nanoparticles & Cnvir4n #r4tPhem on> €in Phinese ^cc^a^d~&€qŠi8ke V, “reuer *j& The inzuence of transition metal doping on the physical and photocatalytic properties of titania. Phemqq^qaqd~&€^Š;ng. The characteristics and photocatalytic activities of silver doped nO nanocrystallites & ‡118 %url %i^cc^^~q^&€u {P, %hi ‰L, *u;ng {C, Š;ng.

Application of the Taguchi approach to optimize ZnO synthesis via hydrothermally assisted sol-gel method

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This is dependent on the formation of point defects and dislocations in the as-synthesized crystals. 39 Therefore, variation in the average crystallite size is an important variable affecting the physical as well as photocatalytic properties.. Figure 4A shows that Zn-precursor type and pH value have the largest effect on the average crystallite size. It is clear that zinc chloride is responsible for the largest crystallite size.

Tính chất quang xúc tác của các cấu trúc dị thể TiO2/ZnO

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Photocatalytic properties of TiO 2 /ZnO thin film. Structural and optical properties of pulsed laser deposited ZnO/TiO 2 and TiO 2 /ZnO thin films. Evaluating the efficiency of nano-sized Cu doped TiO 2 /ZnO photocatalyst under visible light

Effect of Mg doping on morphology, photocatalytic activity and related biological properties of Zn1−xMgxO nanoparticles

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Influence of Mg doping level on morphology, optical, electrical properties and antibacterial activity of ZnO nanostructures. Enhanced photocatalytic activity of ZnO/CuO nanocomposite for the degradation of textile dye on visible light illumination. Structural, optical, photocatalytic and antibacterial activity of ZnO and Co doped ZnO nanoparticles. A review of ZnO nanoparticles as solar photocatalysts: synthesis, mechanisms and applications.

Enhanced photocatalytic activity using near visible light of ZnO nanorods by doping with Mn2+ ions

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Ahmed, Structural, Optical, and Magnetic Properties of Mn-doped ZnO Samples, Results in Physics, Vol. 604-610, https://doi.org/10.1016/j.rinp . 581-590, https://doi.org/10.1016/j.saa . 495-502, https://doi.org/10.1016/j.apsusc .

Preparation and characterization of photocatalytic TiO2/glymo nanocomposite films

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The TiO 2 particles that are on the surface of the film and that are in contact with the organic contaminants provide the photocatalytic property to the films.. Photocatalytic reaction rate constants of the samples were calculated by plotting ln(C 0 /C) versus time.