Template-free preparation of TiO2 microspheres for the photocatalytic degradation of organic dyes

Mouza Al Ruqaishy, Faisal Al Marzouqi, Kezhen Qi, Shu yuan Liu, Sreejith Karthikeyan, Younghun Kim, salma al-kindy, Alex Tawanda Kuvarega, Rengaraj Selvaraj*

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

26 اقتباسات (Scopus)

ملخص

TiO2 microspheres were successfully synthesised by simple solution phase method by using various amount of titanium butoxide as precursor. The prepared TiO2 were characterized by X-ray diffraction (XRD), UV-vis diffuse reflectance absorption spectra (UV-DRS), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). XRD analysis revealed that the as-synthesized TiO2 microsphere poses an anatase phase. The photocatalytic degradation experiments were carried out with three different dyes, such as methylene blue, brilliant black, reactive red-120 for four hours under UV light irradiation. The results show that TiO2 morphology had great influence on photocatalytic degradation of organic dyes. The experimental results of dye mineralization indicated the concentration was reduced by a high portion of up to 99% within 4 hours. On the basis of various characterization of the photocatalysts, the reactions involved to explain the photocatalytic activity enhancement due to the concentration of titanium butoxide and morphology include a better separation of photogenerated charge carriers and improved oxygen reduction inducing a higher extent of degradation of aromatics.

اللغة الأصليةEnglish
الصفحات (من إلى)2283-2289
عدد الصفحات7
دوريةKorean Journal of Chemical Engineering
مستوى الصوت35
رقم الإصدار11
المعرِّفات الرقمية للأشياء
حالة النشرPublished - نوفمبر 1 2018

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