Chitosan modified N, S-doped TiO2 and N, S-doped ZnO for visible light photocatalytic degradation of tetracycline


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نویسندگان: مقداد پیرصاحب , نگین فرهادیان , انور اسدی

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نشریه: International Journal of Biological Macromolecules , , 132 ,

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کد مقاله 13570
عنوان فارسی مقاله
عنوان لاتین مقاله Chitosan modified N, S-doped TiO2 and N, S-doped ZnO for visible light photocatalytic degradation of tetracycline
نوع مقاله مقاله اصیل (پژوهشی، Original)
بالاترین نمایه نامه بین‌المللی ISI
سطح مقاله از مجلات برتر25%(scopus-Q1)
IF 3.909
عنوان نشریه International Journal of Biological Macromolecules
نوع نشریه خارجی ایندکس شده
شماره نشریه
دوره 132
تاریخ انتشار شمسی 1398/04/10
تاریخ انتشار میلادی
آدرس لینک مقاله/ همایش در شبکه اینترنت https://www.sciencedirect.com/science/article/pii/S0141813019310177
DOI
آدرس علمی (Affiliation) نویسنده متقاضی

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N, S-doped TiO2 (NST), N, S-doped ZnO (NSZ) and their composite with chitosan (NST/CS, NSZ/CS) were synthesized by sol gel-hydrothermal method. The prepared samples were characterized using XRD, FTIR, TEM and BET techniques. These photocatalysts were used for the photocatalytic degradation of tetracycline under visible light irradiation. At screening test, NST/CS had the highest tetracycline degradation efficiency of 91% for duration of 20 min under visible light. The blending of chitosan with NST increases the rate of photocatalytic degradation of tetracycline about 2 times. A detail characterization including HRTEM, SEM, EDS and DRS were conducted for NST/CS, the most active photocatalyst in this study. Photocatalytic activity test was conducted by varying tetracycline concentration, irradiation time, catalyst's concentration and pH using response surface methodology to find out the optimum condition for photocatalytic activity. The reusability of as-synthesized NST/CS was assessed which due to its high recoverability can be applied as an effective catalyst for degradation of organic substances in water and wastewater especially for degradation of emerging pollutants such pharmaceutical pollutants. The results from this work show a promising material for local authorities and pharmaceutical facilities to use for the treatment of pharmaceutical pollutants and tetracycline removal in water resource.

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نویسنده نفر چندم مقاله نویسنده مسئول
مقداد پیرصاحبسومخير
نگین فرهادیاناولخير
انور اسدیششمبلي

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