Parası kalmadığı için otobüse binemiyordur ailesi porno izle ona daha yeni para gönderdiği için tekrar porno istemeye utanınca mecburen otostop çekmek için youporn çantasını alarak yol kenarına gelir etekli porno liseli türk kız yol kenarında dururken yanına yaklaşan porno kibar bir gencin onu gideceği yere kadar bırakmak porno izle istemesine çok mutlu olur arabaya bindiklerinde gideceği yer ile porno arabayı kullanan adamın gittiği yer arasında çok mesafe sex izle farkı olduğunu anlayan türk kız bu yaptığı porno indir iyilik karşısında arabada ona memelerini açar porno sapıklaşan adam yol kenarındaki hotelde durarak porno izle üniversiteli otostop çeken türk kızına odada sakso çektirip sikerPhoto catalytic Degradation of Non-Biodegradable Malachite Green Dye by Ni-Doped Titanium Dioxide| Abstract

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Abstract

Photo catalytic Degradation of Non-Biodegradable Malachite Green Dye by Ni-Doped Titanium Dioxide

Author(s): Khushnuma Parveen* and Ritu Vyas

The removal of colour from textile dyeing waste water by using Ni (0.5, 1.0, 1.5 and 2.0% weight) doped semiconductor titanium dioxide was studied. Photocatalytic degradation studies were carried out for malachite green using Ni doped TiO2 in aqueous solution and the progress of the reaction was observed spectrophotometrically at 616 nm. The effect of various operating parameters like pH, concentration of dye, dose of semiconductor and light intensity has been studied to optimise reaction conditions. A tentative mechanism has been proposed for the photocatalytic degradation of malachite green, involving hydroxyl radical as an active oxidizing species. It was observed that the pseudo-first order model was more favorable for the degradation of malachite green using Ni doped TiO2. This was observed that the degradation is more effective and fast for 1.0% Ni-TiO2. This photocatalytic degradation may prove to be an ecofriendly and cost effective process for the removal of hazardous and toxic dyes present in effluents of textile, printing and dyeing industries.


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