Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 28, Pages 15285-15293Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b02649
Keywords
oxygen evolution; water splitting; graphitic carbon nitrides; silver phosphate; Z-scheme; photocatalytic
Funding
- Max Planck Society
- National Natural Science Foundation of China [51102116, 51302112]
- Natural Science Foundation of Jiangsu [BK2011480]
- Jiangsu Overseas Research & Training Program for University Prominent Young & Middle-Aged Teachers
- Specialized Research Fund for Cultivating Academic Leader of Jiangsu University, China
- Open Fund of Key Laboratory for Intelligent Nano Materials and Devices of the Ministry of Education [INMD-2014M02]
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Solar-driven water oxidation is the key step for overall water splitting that efficiently harvests and converts solar energy into fuels; the development of a highly efficient photocatalyst that can mediate water oxidation has become an appealing challenge. Herein, we report a facile two-step process to decorate silver phosphate (Ag3PO4) particles on different types of graphitic carbon nitrides (g-C3N4) as composite photocatalysts for water oxidation. For all the Ag3PO4/g-C3N4 materials, an in situ Z-scheme is created by the generation of Ag nanopartides which act as a cross-linking bridge between Ag3PO4 and g-C3N4 in the composite, resulting in better charge separation and higher catalytic performance. A detailed analysis emphasizes the importance of the g-C3N4 on the chemical, photophysical, and catalytic properties of the composite materials. Our results show that the alteration of the morphology dominates the performance of the composite materials.
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