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:: Volume 18, Number 57 (9-2017) ::
Zanko J Med Sci 2017, 18(57): 70-80 Back to browse issues page
Performance evaluation of Ba:TiO2 nanocomposite in photocatalytic degradation of Direct Blue 71 in presence of sunlight
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Abstract:   (23 Views)
Backgrounds and Aim: The textile industries daily discharge millions of liters of colored effluent into the environment. These effluents are usually non-biodegradable and pose a serious problem to human and aquatic living organism. So, the aim of this study was to evaluate the degradation of Direct Blue71 using Ba:TiO2 nanocomposite as a catalyst in the presence of sunlight.
Material and Methods: This study was an applied research in which Ba:TiO2 nanocomposite was synthesized and also The effects of parameters on the photocatalysis process such as initial dye concentration, photocatalyst dose and pH were also studied.
Results: The results of the study showed that the dye degradation decreased with increasing the dye concentration and nanocomposite dose. It is observed that dye degradation can be favored by lowering the pH of solution and the photocatalysis degradation rate of dye increases with decreasing solution pH, because under acidic pH, hydroxyl radical is the predominant reactive oxidant. It was also found that the photocatalysis degradation followed the Langmuir-Hinshelwood kinetic.
Conclusion: It is concluded that the synthesized nanoparticle has a high potential for dye degradation in comparison with pure TiO2 and can be used as an effective photocatalyst for degradation of dyes form colored effluents.
Keywords: Dye, photocatalyst, zinc oxide, nanoparticle, sunlight
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Type of Study: Applicable | Subject: Special
Received: 2017/05/11 | Accepted: 2017/05/30 | Published: 2017/09/21
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0 0, 0 0, 0 0, 0 0, 0 0. Performance evaluation of Ba:TiO2 nanocomposite in photocatalytic degradation of Direct Blue 71 in presence of sunlight. Zanko J Med Sci. 2017; 18 (57) :70-80
URL: http://zanko.muk.ac.ir/article-1-199-en.html
Volume 18, Number 57 (9-2017) Back to browse issues page
مجله علوم پزشکی زانکو Zanko Journal of Medical Sciences
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