Development of low-cost, high-performance catalysts for the effective degradation organic dyes is both fundamental and technological significance environmental remediation. Herein, FeN4-doped carbon nanotubes exhibit a remarkable catalytic activity towards acid orange 7 (AO7) in presence peroxymonosulfate (PMS). This accounted by abundant well-dispersed FeN4 sites appropriate adsorption energy....

Abstract Quartz crystals are found in nature. It is believed that these eco‐friendly and known for healing, decoration, gem therapy. However, there no scientific evidence of such effects, except it a piezoelectric material. The piezocatalytic effect viewed as having significant potential tackling environmental challenges water cleaning. performance was examined reported few dyes degradation. pu...

Immobilizing of zero-valent iron in mono- and bi-metallic systems on the bentonite clay surface as new nanocatalyst were synthesized and used to degrade model acidic dyes from aqueous media. The Fourier-transform infrared spectroscopy, scanning electron microscopy-energy dispersive X-ray spectroscopy, transmission electron microscopy, X-ray diffraction, and Brunauer-Emmett-Teller analysis were ...

The photocatalytic degradation of Acid Red 91 (AR91) and Acid Yellow 23 (AY23) with different molecular structures and different substitute groups using Pt modified TiO2 (PtTiO2 ) nanoparticles was investigated in the presence of visible light irradiation. Pt-TiO2 nanoparticles were prepared with photodiposition method (PD) and characterized by X-ray diffraction (XRD), scanning electron microgr...

This research is an attempt to measure the effect of alkyl tail on the visible spectra and order parameters S of some azo N-ester-1,8-naphthalimide(ANEN) disperse dyestuff. For the first time, the visible absorption spectra of two azo N-ester-1,8-naphthalimide(ANEN) dyes with identical molecular size and diverse alkyl tails were obtained in liquids and liquid crystalline solvent. Ordinary organ...

Dyes are one of prevalent types of chemicals used by human being today. Dyes are organic compounds which have complex aromatic molecular structure that make them toxic and harmful. When these dyes introduced with water due to textile dyeing and printing industrial waste water may cause problems to all living organism. In these dyes highly toxic metals are used as mordents so the removal of thes...

Advanced oxidation process (AOP) is a recently developed by the researchers for wastewater treatment over decade which has more advantages when compared with other conventional methods. Photocatalysis most efficient and attractive techniques degradation of organic pollutant using semiconductor nanostructured material in presence solar energy. The decided on rising deprivation rate pollutants in...

The effect of sonochemical reactors (SCR) technology upon the degradation of reactive yellow dye has been studied and reported here. Sonochemical reactors (ultrasound irradiation) produce strong cavitation in aqueous solution causing shock wave and reactive free radicals by the violent collapse of the cavitation bubble. These effects should contribute to destruction as well as the decomposition...

This study optimises the degradation of a cocktail of the dyes methyl orange and bromothymol blue by atmospheric air plasma. Response surface methodology (RSM) was employed to investigate the efficacy of the plasma process parameters on degradation efficiency. A Box-Behnken design (BBD) was employed to optimise the degradation of dyes by air plasma discharge. A second order polynomial equation ...

Single phase anatase titania powders with size below 20 nm and surface area of 75 m /g were 2 synthesized by a simple precipitation method at pH 5 and dehydration of agglomerates by azeotropic distillation. The powders were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and BET surface area, after calcinations at 550°C for 3 hrs. This nanoparticles was used for...