کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
607570 1454578 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly efficient heterojunction photocatalyst based on nanoporous g-C3N4 sheets modified by Ag3PO4 nanoparticles: Synthesis and enhanced photocatalytic activity
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Highly efficient heterojunction photocatalyst based on nanoporous g-C3N4 sheets modified by Ag3PO4 nanoparticles: Synthesis and enhanced photocatalytic activity
چکیده انگلیسی


• Novel Ag3PO4/porous g-C3N4 heterojunction photocatalysts were synthesized.
• Ag3PO4 nanoparticles with controlled size were well dispersed on the g-C3N4.
• The heterojunction shows enhanced visible-light photocatalytic activity.
• The enhanced activity was due to improved interfacial charge transfer.
• The degradation of RhB was mainly via the direct hole oxidation mechanism.

Novel visible-light-driven heterojunction photocatalyst composed by Ag3PO4 nanoparticles and nanoporous graphitic carbon nitride sheets (Ag3PO4/p-g-C3N4) was synthesized by a facile and green method. The results showed that photocatalytic activity of Ag3PO4/p-g-C3N4 was much higher than that of pure p-g-C3N4 in the photodegradation of Rhodamine B under visible light irradiation. The kinetic constant of Rhodamine B degradation over Ag3PO4 (33.3 mol%)/p-g-C3N4 was about 5 and 2 times higher than that over pure p-g-C3N4 and Ag3PO4, respectively. The enhanced photocatalytic performance is attributed to the stronger visible light absorption and the heterojunction between Ag3PO4 nanoparticles and p-g-C3N4, which could induce the low recombination rate of photoinduced electron–hole pairs.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 417, 1 March 2014, Pages 115–120
نویسندگان
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