Synthesis and studies of photocatalytic activity of composite based on nanodispersed TiO2 and SiO2

Исаев, А. Б.; Orudjev, Farid F.; Shabanov, N. S.; Magomedova, G. A.; Gasanova, F. G.; Khizrieva, I. Kh.

doi:10.1134/s1995078015030106

Cited by 6 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sol-gel method is used for nanoparticles with high surface area and provides effective control over the texture and surface properties of nanoparticles. There are five main steps of this method starting with hydrolysis and then polycondensation, ageing, drying, and thermal decomposition [32,40,43]. According to [44,45], hydrothermal synthesis refers to the "heterogeneous reactions for synthesizing inorganic materials in aqueous media above ambient temperature and pressure" and the advantage of this method is the low energy consumption, the low-temperature processes, and the environ-mental impact.…”

Section: Two-step Methodsmentioning

confidence: 99%

Dielectric Fluids for Power Transformers with Special Emphasis on Biodegradable Nanofluids

2021

View full text Add to dashboard Cite

This review is focused on the research of dielectric fluids, especially commonly used power transformer oils enhanced by nanoparticles, i.e., nanofluids. There are differences between various combinations of base fluids and nanoparticles prepared in different ways. The main goal of this review was to present recent research in this field sorted by the used nanoparticles. Nanofluids based on mineral oils, natural, or synthetic esters were investigated in terms of the nature of nanoparticles, particularly Al2O3, TiO2, Fe2O3, Fe3O4, graphene, fullerene, and others. The combinations of environmentally friendly oils and nanoparticles were presented. Finally, the article focused on the description of current dielectric fluids usable in power transformers and the possibilities of improving new and existing fluids with nanoparticles, especially their physical, dielectric, and chemical properties, but with regard to environmental aspects.

show abstract

Section: Two-step Methodsmentioning

confidence: 99%

Dielectric Fluids for Power Transformers with Special Emphasis on Biodegradable Nanofluids

2021

View full text Add to dashboard Cite

show abstract

“…So, it must be effectively treated the wastewater dyes before discharge, otherwise it will cause great harm to the environment and human health. The common treatment techniques include electrochemical oxidation [4], membrane separation [5] and ion exchange [6], photodegradation [7] and adsorption [8]. Adsorption is a promising dye removal method among these various dye wastewater treatment methods owig to its simple operation process, low cost and effective [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of novel bi-heteroatom functionalized hyper-crosslinked porous polymers with efficient adsorption methylene blue and methyl orange

Fu,

He,

Guo

et al. 2024

Preprint

View full text Add to dashboard Cite

In this work, we designed and synthesized two novel bi-heteroatom functionalized hyper-crosslinked porous polymers (HCP-CT and HCP-CF) through a simple one-step Friedel-Crafts alkylation reaction. The resulted polymers N/S bi-heteroatom functionalized polymer HCP-CT and N/O bi-heteroatom functionalized polymer HCP-CF both have good adsorption properties for organic dyes such as methyl orange (MO) and methylene blue (MB) in aqueous solution due to its rich pore structure, high specific surface area and rich-heteroatoms of pore surface. It is worth mentioned that the maximum adsorption capacity (qmax) of cationic dye MB by the polymer HCP-CT at room temperature was reached up to 1571.46 mg/g, which is much higher than that of most reported porous materials. Furthermore, the adsorption capacity of HCP-CT for the cationic dye MB was more than seven times that of the anionic dye MO (qmax=212.77 mg/g). Also, the polymer HCP-CF for the MB adsorption capacity (qmax=352.11 mg/g) was more than twice higher than that of anionic dye MO (qmax=131.75 mg/g). The above trends may be because of the stronger electrostatic interaction between the negatively charged N-S/O bi-heteroatom of HCP-CT and HCP-CF with the cationic dye MB than that of MO. In addition, the removal percentage of polymers HCP-CT and HCP-CF still remained above 80% after five adsorption-desorption cycles. Hence, this work provided a convenient synthetic route to develop a novel hyper-crosslinked polymer with high capacity for the entrapment of dyes from aqueous solution.

show abstract

“…SiO 2 has been incorporated into the TiO 2 matrix to enhance the photocatalytic process [2][3][4] . Al 2 O 3 and SiO 2 have high thermal stability, excellent mechanical strength and help to create new catalytic sites due to interaction between TiO 2 and SiO 2 also, SiO 2 acts as a carrier of TiO 2 and helps to obtain a large surface area as well as a suitable porous structure 5,6 . Due to their good resistance against alkaline solutions, Al 2 O 3 -TiO 2 -SiO 2 coatings are attracting the attention of many scientists.…”

Section: Introductionmentioning

confidence: 99%

NANOSTRUCTURAL CHARACTERIZATION AND LATTICE STRAIN OF TiO2-Al2O3-SiO2 COATING ON GLASS AND SI (100) SUBSTRATES

Riazian

2016

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

Synthesis of TiO 2-Al 2 O 3-SiO 2 nanopowder composite, as well as composite coating on soda lime glass and Si (100) by sol-gel method is reported. The morphology and the crystal structure of composite are characterized by the use of field emission scanning electron microscopy (FE-SEM), Energy dispersive X-ray (EDAX), atomic force microscopy (AFM) and X-ray diffraction (XRD) techniques. The effects of chemical compositions and Calcination temperature on surface topography and the crystallization of phases are studied. In addition, the lattice strain and coating roughness parameters are calculated during thermal treatment.

show abstract

Synthesis and studies of photocatalytic activity of composite based on nanodispersed TiO2 and SiO2

Cited by 6 publications

References 22 publications

Dielectric Fluids for Power Transformers with Special Emphasis on Biodegradable Nanofluids

Dielectric Fluids for Power Transformers with Special Emphasis on Biodegradable Nanofluids

Facile synthesis of novel bi-heteroatom functionalized hyper-crosslinked porous polymers with efficient adsorption methylene blue and methyl orange

NANOSTRUCTURAL CHARACTERIZATION AND LATTICE STRAIN OF TiO2-Al2O3-SiO2 COATING ON GLASS AND SI (100) SUBSTRATES

Contact Info

Product

Resources

About