نتایج جستجو برای: cu tio2
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Two different SCR catalysts, V2O5-WO3/TiO2 and Cu-SSZ-13, were exposed to biodiesel exhausts generated by a diesel burner. The effect of phosphorus sulfur on the performance these cataly ...
TiO 2 -Cu photocatalysts (1 wt% Cu) containing different copper species have been prepared and used for the generation of hydrogen by photoreforming cellulose (the major component biomass) in water at room temperature using UV light. A positive effect has clearly observed, analysis role Cu present shows that a mixture Cu(I) Cu(II) favors process. Among photocatalysts, one simple impregnation me...
In this work, tetra(4-carboxyphenyl)porphyrin (TCPP) and two Anderson-type polyoxomolybdates (containing Cu Zn, respectively; CuPOM, ZnPOM) were synthesized deposited on TiO2 thin films. The properties of the obtained materials characterized through UV–vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), diffuse reflection scanning electron microscopy (SEM) energy-dispersive X-ray...
Tourmaline is present as alteration and mineralization at Maherabad and Khopik Cu-Au prospecting areas, Najmabad Sn-W-Au prospecting areas, Hired Au-Sn prospecting area, and within Gheshlagh pegmatite dikes. Based on X-ray diffraction graphs, Maherabad, Gheshlagh and Hired tourmaline are schorl, but Najmabad and Khopik are dravite type. Based on chemical composition, all of tourmalines belong t...
Here, we report a new simple and fast method of cobalt copper ferrites film fabrication on the Ti/TiO2 surface. The approach is based deposition gelatin gel containing nitrates surface porous oxide-silicon coatings titanium obtained by plasma electrolytic oxidation (PEO) followed two-stage annealing at 300 °C 800 to yield ferrite films with good adhesion PEO layer. presence Co/Cu phases was con...
حذف همزمان آلاینده های آلی از محلول آبی و تولید برق با یک ابزار آزمایشگاهی جدید که ترکیب یک راکتور فتوکاتالیستی و یک پیل الکتروشیمیایی است مورد مطالعه قرار گرفت. سیستم پیشنهادی متکی بر قابلیت کاهش یون‌های Cu+2 در حضور TiO2 ، تابش UV (خورشیدی) و یک ماده آلی فداشونده است در محلول آندی پیل فتوراکتوری، Cuº به Cu+2 اکسید شده و دوباره Cu+2 به پایین ترین حالت اکسیداسیونی کاهش می یابد. استفاده از عوام...
Redox mediators play a major role determining the photocurrent and the photovoltage in dye-sensitized solar cells (DSCs). To maintain the photocurrent, the reduction of oxidized dye by the redox mediator should be significantly faster than the electron back transfer between TiO2 and the oxidized dye. The driving force for dye regeneration with the redox mediator should be sufficiently low to pr...
Recently, TiO2 has been widely used as a photocatalyst for degradation of environmental pollutants. In the present study, the advantage of metal doping onto TiO2 for enhanced photocatalitic activity has been investigated. Copper-Titanium dioxide nanocomposites were prepared by the sol-gel method in the presence of Carboxy Methyl Cellulose (CMC), Pectin, and Poly Ethylene Glycol (PEG) as additiv...
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