Gram-scale batch production of novel CdS hollow hexagonal prisms by a molten salt method and the improved photocatalytic stability

Hao, Weiyi; Zhang, Jiawei; Chen, Yuan; Lu, Zilin; Ma, Ben; Ruan, Wansheng; Liu, Zhe; Teng, Fei

doi:10.1016/j.jallcom.2021.161987

Cited by 11 publications

(3 citation statements)

References 42 publications

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“…RZF (0.3 g) was added to stir for 1 h, then transferred to the 100 mL Teflon-lined autoclave and reacted at 140 °C for 6 h. Subsequently, it was naturally cooled to room temperature, and the yellow solid powder was washed with deionized water three times and dried under vacuum at 80 °C for 30 min. Finally, the different weight ratios (16% CdS, 26% CdS, 35% CdS, and 42% CdS) of the CdS/RZF catalysts are obtained. − The CdS NP/FZF and CdS NP/NZF were obtained by the same method.…”

Section: Methodsmentioning

confidence: 99%

Efficient CdS Nanoparticle/Zn(OH)F Heterojunction Catalysts for Hydrogen Evolution

Yang

Zhang

Han

et al. 2022

ACS Appl. Nano Mater.

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Photocatalytic water splitting H 2 production based on semiconductor nanoparticle heterojunctions is an attractive strategy. Various morphologies of Zn(OH)F have been widely used in photocatalytic degradation of organic matter; however, its application in photocatalytic hydrogen production has been rarely reported. Herein, two kinds of morphologies catalysts, one rodlike CdS/Zn(OH)F (CdS/ RZF) and the second flower-like heterojunction CdS nanoparticle/ Zn(OH)F (CdS NP/FZF), were prepared by the simple and mild hydrothermal method. Interestingly, CdS NP/FZF exhibited superior photocatalytic activity to CdS/RZF due to the flower-like structure of Zn(OH)F, which prevented the aggregation of CdS nanoparticles, thereby exposing more active sites. Notably, the light absorption ability of CdS nanoparticle/Ni x Zn 1−x (OH)F (CdS NP/NZF) was greatly improved, which was due to the introduction of Ni 2+ . As a result, the H 2 production rate of CdS NP/NZF (2410 μmol•g −1 •h −1 ) was increased by 2.19 times compared to that of CdS NP/FZF. This remarkable enhancement of photocatalytic H 2 -evolution activity of CdS NP/NZF was attributed to its special morphology in addition to Ni 2+ doping, which promoted the separation of photogenerated electrons and holes, as well as improved the ability of visible-light response. This work provides a family of catalysts as a promising candidate for photocatalytic hydrogen evolution.

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Section: Methodsmentioning

confidence: 99%

Efficient CdS Nanoparticle/Zn(OH)F Heterojunction Catalysts for Hydrogen Evolution

Yang

Zhang

Han

et al. 2022

ACS Appl. Nano Mater.

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“…Here, FeS 2 nanorods are easily obtained by a low-temperature molten salt method, wherein KSCN is employed as the reaction medium and sulfur source . The impacts of annealing temperature, precursor, adsorption temperature, and flue gas constituent on mercury capture performance are investigated together with a concise discussion into the mercury removal mechanism.…”

Section: Introductionmentioning

confidence: 99%

“…26 Here, FeS 2 nanorods are easily obtained by a lowtemperature molten salt method, wherein KSCN is employed as the reaction medium and sulfur source. 27 The impacts of annealing temperature, precursor, adsorption temperature, and flue gas constituent on mercury capture performance are investigated together with a concise discussion into the mercury removal mechanism. The physiochemical properties of the adsorbents were examined using nitrogen physical adsorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), vibrating sample magnetometry (VSM), and X-ray photoelectron spectroscopy (XPS).…”

Section: Introductionmentioning

confidence: 99%

Gaseous Elemental Mercury Capture by Magnetic FeS₂ Nanorods Synthesized via a Molten Salt Method

Liu

Yang

2022

ACS Appl. Nano Mater.

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Coal burning emits a significant amount of elemental mercury (Hgo) into the atmosphere, which can cause severe damage to the environment and human health. Here, magnetic FeS2 nanorods are facilely obtained via a low-temperature (200–350 °C) molten salt (KSCN) route. The annealing temperature is found to notably affect the structure and Hgo capture performance of FeS2, while precursors exert subtle effects on the mercury adsorption performance. The Hgo capture ability of FeS2 first increases and then decreases with increasing annealing temperature. The highest magnetism (12 emu/g) and optimal mercury capture performance (Hgo removal efficiency of 96.2%) are achieved over FeS2 nanorods synthesized at 250 °C. This material shows superior performance in the temperature range of 60–180 °C owing to its rod-like structure with ample number of exposed adsorption sites. NO and SO2 are found to only slightly intervene in the mercury removal process. Hgo vapor first adsorbs on the FeS2 surface via physical adsorption followed by conversion into mercury sulfide (HgS) and mercury oxide (HgO) by the oxidation of disulfide ions (S2 2–) and chemisorbed oxygen (O*) species, respectively.

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Structural, optical and photoelectrochemical behavior of facile electrodeposition of organic/inorganic hybrid film

Lamiri,

Messaoudi,

Tounsi

et al. 2024

Opt Quant Electron

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Gram-scale batch production of novel CdS hollow hexagonal prisms by a molten salt method and the improved photocatalytic stability

Cited by 11 publications

References 42 publications

Efficient CdS Nanoparticle/Zn(OH)F Heterojunction Catalysts for Hydrogen Evolution

Efficient CdS Nanoparticle/Zn(OH)F Heterojunction Catalysts for Hydrogen Evolution

Gaseous Elemental Mercury Capture by Magnetic FeS₂ Nanorods Synthesized via a Molten Salt Method

Structural, optical and photoelectrochemical behavior of facile electrodeposition of organic/inorganic hybrid film

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Gram-scale batch production of novel CdS hollow hexagonal prisms by a molten salt method and the improved photocatalytic stability

Cited by 11 publications

References 42 publications

Efficient CdS Nanoparticle/Zn(OH)F Heterojunction Catalysts for Hydrogen Evolution

Efficient CdS Nanoparticle/Zn(OH)F Heterojunction Catalysts for Hydrogen Evolution

Gaseous Elemental Mercury Capture by Magnetic FeS2 Nanorods Synthesized via a Molten Salt Method

Structural, optical and photoelectrochemical behavior of facile electrodeposition of organic/inorganic hybrid film

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Gaseous Elemental Mercury Capture by Magnetic FeS₂ Nanorods Synthesized via a Molten Salt Method