Meso-porous ZnO nano-triangles @ graphitic-C3N4 nano-foils: Fabrication and Recyclable photocatalytic activity
- Meso-porous ZnO nano-triangles @ graphitic-C3N4 nano-foils: Fabrication and Recyclable photocatalytic activity
- 강미숙; 곽병섭; 강소라; 비그니쉬쿠마라벨
- VISIBLE-LIGHT IRRADIATION; GRAPHITE-LIKE C3N4; METHYLENE-BLUE; COMPOSITE PHOTOCATALYST; HYDROTHERMAL SYNTHESIS; HYBRID PHOTOCATALYST; G-C3N4/ZNO COMPOSITE; SOLAR-RADIATION; IONIC-LIQUID; DEGRADATION
- Issue Date
- ELSEVIER SCIENCE BV
- SEPARATION AND PURIFICATION TECHNOLOGY, v.147, pp.257 - 265
- Meso-porous ZnO nano-triangles @ g-C3N4 nano-foils (ZnO-nt@g-C3N4) was synthesized through a sono-chemical impregnation method. The photocatalytic activity was tested for the degradation of rhodamine-B (Rh-B) dye under simulated solar light irradiation. The concentration of g-C3N4 was found to be significant on the photocatalytic efficiency of ZnO-nt@g-C3N4. Compared to pure ZnO-nt and g-C3N4, the photocatalytic activity of ZnO-nt@g-C3N4 was greatly improved due to the synergistic effect. The photocatalyst of ZnO-nt@g-C3N4 (20%) exhibited 100% photocatalytic activity within 60 min. The recycling results also demonstrated that the photo-deactivation of ZnO-nt was completely arrested by g-C3N4 modification. A possible photocatalytic mechanism was proposed for the enhanced activity of ZnO-nt@g-C3N4. The outcome of this research work was also compared with previously reported catalysts. The results of this present work could be used for the application dye waste water treatment under solar light exposure. (C) 2015 Elsevier B.V. All rights reserved.
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