نتایج جستجو برای: photocatalytic removal
تعداد نتایج: 156095 فیلتر نتایج به سال:
Backgrounds and Objectives: Phenol and phenolic compounds are widely used in industry and daily liFe, and are of high interest due to stability in the environment, dissolution ability in water and health problems. In this regard, phenol removal from water is of high importance. The purpose of this study was to investigate the efficiency of photodegradation process for removal of phenol from aqu...
Background : One of the major disadvantages of zinc oxide in aqueous solution is the light unstability of this catalyst due to the light corrosion which causes substantial reduction of photocatalytic activity of zinc oxide and application of it for environment purification. In this study, the performance of photocatalytic of UV/Silica-ZnO was compared in dye and COD removal by UV/ZnO. Materials...
In the present study, the core-shell magnetic nanostructure of Fe3O4@SiO2@CeO2 was synthesized to investigate its use as an effective photocatalyst for methylene blue removal. The prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and a vibrating sample magnetometer (VSM). The photocatalytic activity for the Fe3O4@SiO2@CeO2 core-shell magneti...
Background and Objectives: Humic substances belong to a group of micro molecular of organic substance with different molecular weight produced by reaction of biological and geochemical process. They are known as one of the main prefabrications of disinfection byproducts. This study aimed at investigating the efficacy of (ZnO) nanoparticle under UV/ZnO radiation in removing humic acid. Materia...
Background and aims: Volatile organic compounds (VOCs) are of environmental concern because of their adverse effects on human health. VOCs contain a large group of substances like toluene. Today application of catalytic beds is one the ways to control these kinds of emissions. In this study photocatalytic removal of toluene vapour by titanium dioxide nanoparticles immobilized on ZSM-5 zeolite h...
Background: Titanium dioxide (TiO2)-mediated photocatalysis has been found to be an efficient method of water treatment and is capable of degrading a wide range of organic pollutants and microbial agents with high efficiency. The microorganism Pseudomonas aeruginosa is resistant to chemicals and UV irradiation. Bacteria which are resistant to UV-induced oxidative damage of the cell membrane are...
Expression of concern for ‘Construction an α-Fe 2 O 3 /Bi p–n heterojunction with exceptional visible-light photocatalytic performance dye removal’ by Rui Lei et al., New J. Chem. , 2023, https://doi.org/10.1039/d0nj02132f.
In the current survey, the removal of dye from contaminated water was studied by photocatalytic degradation using TiO2 nanoparticles with respect to pH, TiO2 dosage, reaction time, temperature and initial dye concentration. TiO2 nanoparticles were investigated by XRD, FESEM and FT-IR.The RSM was chosen to study the composition effects of input independent factor...
Photocatalytic technology is a sustainable, efficient, and eco‐friendly advanced oxidation process for addressing the hazards of microorganisms (bacteria viruses). In this article, latest results in studies on use semiconductor photocatalysts to remove their related genes (DNA RNA) from environment, including operating conditions removal efficiency, are summarized. The photocatalytic‐disinfecti...
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