in this scientific research work we report a novel method to synthesis co3o4 nanoparticles via calcinations of cobalt hydroxide which can be conveniently prepared by the co(no3 )2.6h2o with different reactants. in order to study the effect of calcination temperature on structure and morphology of the nanoparticles, the calcinations take place at various temperatures (at 300°c, 500°c and 700°c)....

The problem of the deep elimination antibiotics in environmental bodies is exceptionally warranted. In this work, a ternary nanocomposite FeNi3/SiO2/CuS (FSC) was fabricated and then integrated with UV light irradiation hydrogen peroxide as heterogeneous Fenton-like photocatalytic system for decomposition tetracycline (TC) from aqueous media. During process, various influencing parameters such ...

Ectomycorrhizal fungi play a key role in mobilizing nutrients embedded in recalcitrant organic matter complexes, thereby increasing nutrient accessibility to the host plant. Recent studies have shown that during the assimilation of nutrients, the ectomycorrhizal fungus Paxillus involutus decomposes organic matter using an oxidative mechanism involving Fenton chemistry (Fe(2+) + H2O2 + H(+) → Fe...

The fast and selective determination of hydrogen peroxide (H2O2) is importance not only because strong interest in this widely applied analyte, but also the development enzymatic biosensors for glucose or other metabolites where sensor H2O2 can be used as transducer. Here, we report on an electrocatalytical amperometric detection H2O2. It a that consists gold electrode covered by self-assembled...

Drill mud is a fluid which is used in oil extraction industries in order to cool and lubricate the drill bit. Due to containing numerous toxic components, it is considered as a hazardous waste which must be treated before discharging to the environment. Current separation techniques for drill cutting treatment can be categorized into three main categories of physical (dewatering), physiochemica...

Background: Poly chlorinated biphenyls (PCBS) are the groups of organic chemical material and toxic, persistent, bio accumulate and pose a risk of causing adverse effects to human health and the environment. PCB compounds are caused the different health effects in human depending of age, sex, route of entry, intensity and frequency exposure. This study was conducted to determine the effect of...

In this work, the decomposition of phenanthrene (PHE) in mimic and real soil washing (SW) effluents was investigated using UVB light assisted activation hydrogen peroxide (H2O2) peroxydisulfate (PDS) oxidation processes. The impact oxidant concentration, initial pH, coexisting inorganic anions (Cl?, HCO3? NO3?) on PHE removal evaluated. degradation efficiency under irradiation followed order UV...

The objective of this study is to evaluate the turbidity generated during Fenton photo-reaction applied oxidation waters containing carbamazepine as a function factors such pH, H2O2 concentration and catalyst dosage. results let establish degradation pathways main decomposition byproducts. It found that pH affects water. Working between = 2.0 2.5, under 1 NTU due fact iron, added catalyst, in f...

A method has been developed for the determination of trace anion impurities in concentrated hydrogen peroxide. The method involves on-line decomposition of hydrogen peroxide, ion chromatographic separation and subsequent suppressed-type conductivity detection. H2O2 is decomposed in Pt-catalyst filled Gore-Tex membrane tubing and the resulting aqueous solution containing analytes is introduced t...