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 sikerPhotodegradation of Two Commercial Dyes in Aqueous Phase using Copper Oxide as Photocatalyst| Abstract

44 7460 854 031

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Abstract

Photodegradation of Two Commercial Dyes in Aqueous Phase using Copper Oxide as Photocatalyst

Author(s): Arti Shah, Naveen Mittal, V. K. Sharma and P. Bala Punjabi

The present study involves the photocatalytic degradation of dyes [Rhodamine B and methylene blue], employing heterogeneous catalysis. The photocatalytic activity of copper oxide (CuO) has been investigated. An attempt has been made to study the effect of different parameters such as amount of catalyst, concentration of dye, pH and intensity of light. The rate of decolourization was estimated from residual concentration spectrophometrically. The experimental results indicated that the maximum decolourization (near about 80%) of dyes occurred at basic pH, (10.0 and 8.5). It was observed that photocatalytic degradation of dyes follows pseudo first order kinetics. A tentative mechanism has also been proposed for the photocatalytic degradation of dyes in presence of copper oxide semiconductor.


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