Ti (II) Oxide Nanoparticle Loaded GMA-co-EGDMA Microspheres: Photocatalytic Removal of Textile Dyes from Aqueous Medium

Öz

It is known that photocatalytic techniques have advantages over other conventional treatment techniques. In this study, nanoparticle Ti (II) oxide (~ 10 nm) and hydrogel polymer based heterogeneous catalysts were produced to maximize photo-catalytic activity. The performance of the obtained photo-catalytic material was evaluated in the process of removing reactive textile dyes from aqueous media. When the Ti (II) oxide nanoparticles were used directly for representative reactive textile dyes, alizarin red S, Congo red, methylene orange and acid blue (20 ppm dye, 10 ppm catalyst, 60 minutes and 25 ° C) which are extremely hazardous for human and environmental health even at low concentrations, up to 92.5% decomposition was achieved, while 71.2% decomposition was obtained with Ti (II) oxide nanoparticle embedded microparticles. However, given the advantages of removing the catalyst, the indicated performance reduction is not critical. By scaling the reaction conditions, high removal performance can be achieved.

Anahtar Kelimeler

• Heterogeneous Photocatalyst,Polymer,Based Carriers,Nanoparticle,Immobilization,Textile Dye Treatment

Ti(II) Oksit Nanoparçacık Yüklenmiş GMA-co-EGDMA Mikroküreler: Tekstil Boyalarının Sulu Ortamdan Fotokatalitik Giderimi

Öz

Atık suların arıtılmasında, özellikle tekstil boyalarının sulu ortamdan uzaklaştırılmasında, fotokatalitik teknikler birçok avantaja sahiptir. Bu çalışmada, fotokatalitik aktiviteyi en yüksek seviyeye çıkarmak için, nanoparçacık Ti (II) oksit (~10 nm) ve hidrojel polimer esaslı heterojen katalizörler üretilmiştir. Elde edilen foto-katalitik malzemenin performansı, sulu ortamlardan reaktif tekstil boyalarının giderilmesi işleminde değerlendirilmiştir. Düşük miktarlarda bile çevre ve insan sağlığına etkisi olan reaktif tekstil boyaları arasından model olarak seçilen alizarin kırmızısı S, Kongo kırmızısı, metilen turuncusu ve asit mavisi için Ti(II) oksit nanoparçacıklar doğrudan kullanıldığında (20 ppm boya, 10 ppm katalizör, 60 dakika ve 25°C’ta) %92.5’a varan bozunma elde edilirken, mikrokürelere yüklenmiş nanoparçacıklar ile %71.2 bozunma elde edilmiştir. Ancak, katalizörün ortamdan alınması dikkate alındığında, belirtilen performans azalması önemli değildir. Reaksiyon ortamının ölçeklendirilmesi ile yüksek giderim performansı elde edilebilir.

Anahtar Kelimeler

• Heterojen fotokatalizörler,Polimer esaslı taşıyıcı,Nanotanecik,immobilizasyon,Tekstil Boyası Artıma

Kaynakça

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