BACKGROUND The interactions of p-cresol photocatalytic degradation components were studied by response surface methodology. The study was designed by central composite design using the irradiation time, pH, the amount of photocatalyst and the p-cresol concentration as variables. The design was performed to obtain photodegradation % as actual responses. The actual responses were fitted with line...

This work sought to study the elimination of nevirapine (NVP) from synthetic wastewater using UV/TiO2/H2O2 system. The main objectives were evaluate influence operating parameters, reaction kinetics, contributing reactive species, degradation pathway, and catalyst reusability. research surface methodology (RSM) was utilized for optimizing process variables. Five variables (pH, NVP concentration...

Water pollution due to dyes from industrial effluents and domestic wastewater is a big environmental issue, so an effective adsorbent needed. In this study, graphene oxide/chitosan (GO/CS) composites were synthesized applied for methylene blue (MB) dye removal. Characterization was done on the GO GO/CS using FTIR, EDX, SEM, TGA. The adsorption studies conducted verify effect of pH, dosage conta...

in the present study, comparison of  photocatalytic activity of nanostructures semiconductor zinc oxide (zno) was prepared using the different methods on the degradation of organic dye such as methylene blue that was investigated. previous studies have proved that such semiconductors can degrade most kinds of persistent organic pollutants, such as detergents, dyes, pesticides and volatile organ...

Silver nanoparticles doped on titanium oxide (TiO(2)) were produced by laser-liquid interaction of silver nitrate (AgNO(3)) in isopropanol. Characteristics of Ag/TiO(2) (Ag doped TiO(2)) nanoparticles produced by the methods presented in this article were investigated by XRD, TEM, SEM, EDX, and UV-Vis. From the UV-Vis measurements, the absorption of visible light of the Ag/TiO(2) photocatalysts...

there have been many productive methods developed so far for optimization of multiple response surface (mrs) problems. this paper tends to review the most seminal approaches in mrs and discuss the strength and weakness of each of the approaches through existing aspects in mrs. a numerical example is included to compare results by different methods. finally some of the prominent areas for future...

Co-torrefaction of microalgae and lignocellulosic biomass was evaluated as a method to process sludge produced from various effluents obtain biochars with suitable properties for energy or material valorization. The influence four independent variables on biochar yield by set experiments defined response surface methodology (RSM). were characterized proximate ultimate composition, HHV, methylen...

In this work, photoelectrocatalytic degradation of wastewater containing methylene blue (MB) was investigated using a novel photoelectrochemical reactor – a three dimensional electrodes-photocatalytic oxidation reactor in which nano TiO2 was used as photocatalyst. The experimental results are assessed in the terms of decolorization and Chemical Oxygen Demanded (COD) removal efficiencies. The ex...

This article used bentonite impregnated with titanium and silver, respectively, as photocatalyst, to degrade methylene blue (MB) under conditions of MB solutions exposed to sodium lamp and sunlight. Due to the semi-conducting properties of synthesized bentonite catalysts, when exposed to sodium lamp and sunlight, catalyst particles are excited for photocatalysis to achieve decolourization. Afte...