Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 856, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2020.156798
Keywords
Sol-gel synthesis; zinc oxide; Graphitic carbon nitride; Heterostructure; Photodegradation; CO2 photoreduction
Categories
Funding
- CNPq [454438/2014-1, 311463/2017-7, 159866/2018-9]
- FAPESP [2013/17639-4, 2016/21515-7, 18/01258-5]
- FAPEMIG
- LMMA - FAPEMIG [CEX-112-10]
- SECTES, MG
- RQ-MG [FAPEMIG: CEX-RED-00010-14]
- Improvement of Higher Education Personnel (CAPES) [001, 166]
- Agronano Network (Embrapa Research Network)
- Alexander von Humboldt Foundation [88881.145566/2017-1]
- CAPES [88881.145566/2017-1]
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The research explores an effective method for synthesizing ZnO:g-C3N4 heterostructures, which can potentially play a significant role in drug degradation and CO2 conversion by improving the stability of heterostructures and the separation of photogenerated charge carriers, thus increasing the photocatalytic efficiency.
Semiconductor heterojunctions are interesting strategies for the development of efficient photocatalysts. In this paper we report the synthesis of ZnO:g-C3N4 heterostructures with different percentages of g-C3N4 (15%, 50% and 85%) using an easy and new method: precipitation of ZnO by alkaline solution at room temperature on g-C3N4 surface. The nucleation of ZnO nanoparticles had effective interaction on the g-C3N4 surface, showing good crystallinity and uniformity, which improved the heterostructure stability and the separation of photogenerated charge carriers, consequently increasing the photo-catalytic efficiency for both the degradation of the amiloride (AML) drug and the conversion of CO2 into products such as CO, CH4 and C2H4. (C) 2020 Elsevier B.V. All rights reserved.
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