نتایج جستجو برای: chlorophenol
تعداد نتایج: 779 فیلتر نتایج به سال:
In this study, characterization of monochlorophenols (o-, m-, p-chlorophenol) has been observed by using FTIR spectroscopy as well as the effects of molecule symmetry on vibrational frequencies of molecule. Vibrational modes of monochlorophenols investigated by means of ATR which is the best choice for liquid phase. The observed infrared bands of monochlorophenols are assigned with their geomet...
5,10,15,20-Tetrakis(2,6-dichloro-3-chlorosulfophenyl)porphyrin and its tin and zinc complexes were synthesized with high yields and fully characterized. The corresponding water-soluble 5,10,15,20-tetrakis(2,6-dichloro-3-sulfophenyl)porphyrins were obtained by hydrolysis with water. An extensive photophysical study of the new water soluble porphyrinic compounds was carried out including absorpti...
A method was developed that offers a rapid, simple and accurate technique for the determination of chlorophenols at trace levels in aqueous samples with very limited volumes of organic solvents. These compounds were acetylated, then preliminarily extracted with n-hexane. The enriched chlorophenols were directly analyzed using gas chromatography with an electron-capture detector. The detection l...
Zn1?xCdxS catalysts with Zeolitic Imidazolate Framework-8 (ZIF-8) as the precursor were successfully prepared by ion exchange method, and ability electrochemical properties of a series ZIF-8, ZnS in photocatalytic degradation 2-CP TC investigated. Doping Cd ions was able to modulate band gap width improve utilization visible light photocatalyst. The nanocage hollow structure have better respons...
Background and purpose: The 2-chlorophenol (2-CP) and 4-chlorophenol (4-CP) are phenolic compounds which may have adverse effects on human and environment. Therefore, removing these compounds from water and wastewater is necessary. This study aims to analyze 2-CP and 4-CP removal by using Azolla filiculoides biomass. Materials & Methods: Azolla biomass was sun dried, crushed and sieved to parti...
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