کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5443829 1510950 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetic diatomite(Kieselguhr)/Fe2O3/TiO2 composite as an efficient photo-Fenton system for dye degradation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Magnetic diatomite(Kieselguhr)/Fe2O3/TiO2 composite as an efficient photo-Fenton system for dye degradation
چکیده انگلیسی


- Natural diatomite modified with Fe2O3 and TiO2 acts as heterogeneous photo-Fenton catalyst.
- Photocatalysts with easily separation and recovery.
- Reusable composites in the photo-Fenton degradation of methylene blue dye.

We explored the potential use of diatomite/Fe2O3/TiO2 composites as catalysts for heterogeneous photo-Fenton degradation of methylene blue under neutral pH. Such system consists in magnetic solids synthesized by co-precipitation with Fe2+/Fe3+ in the presence of diatomite, followed by impregnation of TiO2. The results showed that the optimal amount of the catalyst was 2.0 g L−1, since aggregation phenomena become significant above this concentration, which decreases the photodegradation activity. The catalyst is highly efficient in the degradation of methylene blue and shows an easy recovery by an external magnetic field. This allows for an effective catalyst reuse without significant loss of activity in catalytic cycles, which is a highly interesting prospect for recyclable dye degradation systems.

Potential use of diatomite/Fe2O3/TiO2 composites as recoverable heterogeneous photo-Fenton catalysts in the degradation of methylene blue.197

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Sciences - Volume 72, October 2017, Pages 14-20
نویسندگان
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