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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY · 2023 · IF 7.2

In situ loading amorphous CoSx on N-doped g-C3N4 through light assisted synthesis for enhanced photocatalytic hydrogen generation

Puhui Deng,Chuanjun Xi,Ning Chen,Hongpeng Shi,Linping Zhang,Yu Hou

Loading co-catalysts are an effective strategy to break the confinement of bulk carbon nitride in photocatalysis . Employing this strategy, N-doped g-C 3 N 4 decorated with CoS x was successfully prepared through a photochemical synthesis route. The optimum hydrogen evolution performance of N-CN-CoS x -4 was 1757 μmol g −1 h −1 under visible light irradiation . Superior interfacial carrier transfer properties and improved light absorption of N-CN-CoS x -4 could elucidate its better photocatalytic activity . This research offers a reference for the construction of high-efficiency, stable and low-priced photocatalysts .

CAS / MDL: 57-13-6

研究领域: 材料科学 · 光化学 · 催化 · 可再生能源

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JOURNAL OF MATERIALS SCIENCE · 2020 ·Vol. 55 ·期 34 ·16171-16183 · IF 3.553

A novel amorphous CoSx/NH2-MIL-125 composite for photocatalytic degradation of rhodamine B under visible light

Liu Shengjun,Zou Qichao,Ma Yan,Sun Wen,Li Yu,Zhang Jian,Zhang Cheng,He Lifang,Sun Yudie,Chen Qian,Liu Bo,Zhang Hexin,Zhang Kui

Metal–organic frameworks (MOFs) are a new type of porous crystal materials that have been widely used in various fields. Owing to their adjustable porous structure, MOF photocatalysts with high catalytic activity have become a research hotspot. In this study, NH 2 -MIL-125/CoS x samples were investigated as a novel visible light-responsive catalyst for the removal of organic dye. The NH 2 -MIL-125/CoS x -20 composites showed the best photodegradation efficiency, where photodegradation of the rhodamine B reached 95.4% in 45 min. CoS x was able to effectively extend the wavelength absorption range of NH 2 -MIL-125 and effectively separate the photogenerated electrons and holes and that could lead to the improved photocatalytic performance of the composites. The reactive superoxide radical ( · O 2− ) was identified as the main active species using reactive species capture experiments, and a reasonable photocatalytic mechanism was proposed. This paper is intended to guide the development of organic–inorganic hybrid materials for environmental remediation.

研究领域: 材料科学 · 环境科学 · 化学 · 纳米技术

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In situ loading amorphous CoSx on N-doped g-C3N4 through light assisted synthesis for enhanced photocatalytic hydrogen generation

A novel amorphous CoSx/NH2-MIL-125 composite for photocatalytic degradation of rhodamine B under visible light