کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5448289 1511778 2017 36 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface modification of mesoporous silicate by tannin for immobilization of TiO2 nanoparticles: Study of photocatalytic performance
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Surface modification of mesoporous silicate by tannin for immobilization of TiO2 nanoparticles: Study of photocatalytic performance
چکیده انگلیسی
Photocatalytic performance of TiO2 supported on hexagonal mesoporous silicate (HMS) loaded by different concentrations of oak gall tannin (OGT) for degradation of direct yellow 86 (DY86) was studied (TiO2-OGTx-HMS, x = 0.3, 0.6,1 wt%). The results were also compared with the performance of TiO2 (p-25) and TiO2 supported on HMS. Photocatalysts were characterized by XRD, SEM, EDX and TEM analysis. The analysis showed that tannin was immobilized on the surface and TiO2 nanoparticles were distributed well on the surface of OGT-HMS without aggregation. It was concluded that photocatalytic reaction follows first-order kinetic and up to 120 mg/l, Langmuir-Hinshelwood (L-H) kinetic model is acceptable.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 185, 1 January 2017, Pages 14-23
نویسندگان
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