Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 310, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2022.121336
Keywords
C3N4/NiIn2S4 heterostructure; Photothermal process; Solar H2O evaporation; Photocatalytic H2O2 production
Funding
- National Natural Science Foundation of China [21908242]
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, Qiqihar University [BMHXJKF001]
- open foundation of Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University [2021GXYSOF10]
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This study proposes a simple method for the controllable synthesis of C3N4/NiIn2S4 heterojunction, which can achieve efficient interface evaporation and photocatalytic production of H2O2.
Using solar energy to obtain valuable fresh water through interface evaporation is a promising environmentally friendly technology. However, the organic pollutants in wastewater may cause potential water safety hazards. The removal of organic pollutants by H2O2 in-situ generated photocatalytically is an effective means to achieve water purification. In this work, a simple method is proposed for the controllable synthesis of C3N4/NiIn2S4 heterojunction, by which can be achieved both the efficient evaporation of the solar interface and the photocatalytic production of H2O2. The evaporation rate and solar evaporation efficiency of C3N4/NiIn2S4 reach up to 3.25 kg.m(-2).h(-1) and 215.06%, respectively, under the irradiation of one sun (1 kW.m(-2)). Furthermore, C3N4/ NiIn2S4 heterojunction exhibits an excellent photocatalytic H2O2 production activity of 1080 mu mol- 1.L-1.h(-1). This study provides a facile and attractive strategy for the design of photothermal materials and photocatalysts with efficient interfacial evaporation and sewage purification, especially for complex sewage samples.
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