in this paper, a modified sol-gel method using peroxotitanic acid sol (pta) was applied for the preparation of tio2 nanostructured thin films on glass plates. the peroxotitanic acid sol was synthesized using titanium isopropoxide, isopropylalchol, h2o and hydrogen peroxide. tio2 films were then calcined at 500oc and characterized by x-ray diffraction (xrd) and scanning electron microscopy (sem)...

TiO2 nanotube arrays were synthesized by anodization of Ti metal sheets followed by thermal annealing at elevated temperatures from 400 to 600 C. Scanning electron microscopic measurements showed that dense arrays of nanotubes were produced with the inner diameter about 100 nm, wall thickness 35 nm, and length about 10 lm. X-ray diffraction measurements showed that the as-prepared nanotubes wer...

4 Nitrophenol (NP) or para nitrophenol (PNP) is one of the emerging pollutants from pesticides industries and it a major discharge any phenol consuming industry also severs as pharmaceutical wastewater. Design development photocatalytic treatment p-nitrophenol particularly to suit recovery reuse catalyst will aid in its commercial scale development. P-nitrophenol degradation has been studied ce...

Nitrogen doping in combination with the brookite phase or a mixture of TiO2 polymorphs nanomaterials can enhance photocatalytic activity under visible light. Generally, nitrogendopedanatase/brookite mixed phases TiO2 nanoparticles obtained by hydrothermal or solvothermal method need to be at high temperature and with long time heating treatment. Furthermore, the surface areas of them are low (<...

SnO2 nanowires directly grown on flexible substrates can be a good electrode for a lithium ion battery. However, Sn-based (metal Sn or SnO2) anode materials always suffer from poor stability due to a large volume expansion during cycling. In this work, we utilize atomic layer deposition (ALD) to surface engineer SnO2 nanowires, resulting in a new type of hollowed SnO2-in-TiO2 wire-in-tube nanos...

photoreactor using solar radiation. The effect of various parameters such as pH, initial concentration of pollutant, catalyst dose, oxidant, and time variation were studied. The determination of the best catalyst was studied amongst the four catalysts (TiO2, ZnO, PSA and SSA) .The kinetics of degradation of isooctane was also studied. The results showed that TiO2 was the best catalyst with a de...

We report the construction of 2D/1D heterojunction photocatalysts through hydrothermal growth WO3 nanosheets on TiO2 nanoribbons for first time. Two-dimensional were vertically arrayed surface nanoribbons, and density could be simply controlled by adjusting concentration precursors. The WO3/TiO2 heterojunctions not only decreases band gap energy from 3.12 to 2.30 eV broadens photoresponse range...

The aim of this study was to modify the TiO2 photocatalyst with different amounts ZnO (0.25, 0.5, and 1 wt. %) B (1, 5, 10 %), as B-ZnO/TiO2, for mineralization photodegradation direct red 16 (DR16). B-ZnO/TiO2 synthesized by sol-gel method composite 5 % 0.5 selected optimal composition, based on DR16 removal experiments. Th results showed that efficiencies optimum were 47 87 in B-TiO2 respecti...

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 m...

The present study explores the solar-induced photocatalytic degradation of reactive red (RR) and turquoise (RT) dyes in a single system using TiO2 immobilized xanthan gum (TiO2/XG), synthesized sol–gel dip-coating technique for direct precipitation. SEM-EDX, XRD, FTIR, UV–Vis were used to assess characteristics resulting catalyst. Moreover, effects different operating parameters, specifically p...