کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
77505 49283 2016 8 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Solar degradation of contaminants in water: TiO2 solar photocatalysis assisted by up-conversion luminescent materials
ترجمه فارسی عنوان
تخریب خورشیدی آلاینده ها در آب: فوتوکاتالیست خورشیدی TiO2 با کمک تبدیل بالای مواد فلورسنت
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• Up-conversion material for enhancing the photo-activity of TiO2 under sun light.
• Rare earth co-doped fluoride glass (ZBLAN) was used as luminescence agent.
• ZBLAN could transform the near-infrared sunlight tail into UV–vis radiation.
• Sustainable advanced oxidation process for water/air decontamination using sun light.
• Appropriate handling of the incoming photons for solar driven photocatalytic process.

Solar energy, along with other renewable resources, could potentially solve environmental problems, as demonstrated by recent developments in the use of solar energy, such as solar photocatalysis. Solar photocatalytic technology has been demonstrated to be effective for treating groundwater, drinking water, wastewater and air and soil pollution. In this study, a solar photocatalytic application for wastewater decontamination is presented. Luminescent material has been evaluated as up-conversion material for enhancing the photocatalytic activity. Wastewater decontamination by heterogeneous photocatalysis has been developed in a slurry photo-reactor, using TiO2 as a photocatalyst. The photoactivity of TiO2 under several sun irradiation conditions was investigated. The up-conversion luminescence agent ZBLAN, a rare-earth (Yb-Er-Tm) co-doped fluoride glass (ZrF4– BaF2–LaF3–AlF3–NaF), was incorporated to enhance the solar-driven activity of TiO2 because this material could transform the unused near-infrared sunlight tail into UV–vis radiation available for photoreaction activation. The use of ZBLAN has demonstrated an improvement over ordinary titanium dioxide photocatalytic activity under sunlight irradiation for the photocatalytic degradation of pollutants in wastewater. Our results demonstrating the contribution of up-conversion luminescence to the improved photoactivity of titanium dioxide suggest that it can be used to develop new technologies for treating wastewater using solar light.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solar Energy Materials and Solar Cells - Volume 155, October 2016, Pages 194–201
نویسندگان
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