Preparation and Photoelectrochemical Properties of CdS Nanoparticles Using Supercritical Carbon Dioxide

Yan, Shancheng; Liu, Zailiang; Wei, Xiaoxu; Cheng, Ying; Shi, Yi; Hu, Dong; Xu, Xiaojing

doi:10.1166/jnn.2016.11335

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…Since the first demonstrated single crystal TiO 2 for water splitting to H 2 published in 1972 by Fujishima and Honda [3], photocatalysis has attracted enormous attention of many researchers in various fields including chemistry, physics, materials, and environmental protection. In the past few decades, scientists have made considerable efforts to develop new semiconductor photocatalysts [4,5]; many inexpensive, efficient, and stable photocatalysts have been prepared and used in photochemical sewerage treatments, such as metal oxides (TiO 2 [6], ZnO [7,8]), sulfides [9], and oxynitrides [10]. ZnO is a kind of n-type semiconductor photocatalyst with a wide band gap, high electron excitation binding energy (about 60 meV at room temperature), favorable electric and photonic properties, and oxidation resistance.…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of ZnO-GO Composites for the Photocatalytic Degradation of Methylene Blue

Lin

Hong

Chen

et al. 2020

Journal of Nanomaterials

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Beneficial from the excellent optical performance of zinc oxide (ZnO) nanocrystals and the absorption properties of graphene oxide (GO), the nanocomposites of ZnO and GO with synergistic photocatalytic effects were prepared by a precipitation method, in which GO is utilized as the catalyst carrier. The prepared composites were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis spectroscopy, field emission scanning electron microscopy, and transmission electron microscopy and also performed photocatalytic activity for the nanocomposites. The results show that ZnO is uniformly loaded on the surface of GO assisted by an effective interface coupling. Due to interface coupling between ZnO and GO, electrons can be directly transferred from the valence band of ZnO to GO. The photodegradation efficiency of the composites reaches to 97.6%, and the first-order reaction rate constant of photodegradation is calculated to be 0.04401 min-1. The novel ZnO-GO composites with excellent photocatalytic performance display promising potential applications in the field of photocatalysis and will provide a new platform for building next-generation graphene-based semiconductor composites.

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Section: Introductionmentioning

confidence: 99%

Green Synthesis of ZnO-GO Composites for the Photocatalytic Degradation of Methylene Blue

Lin

Hong

Chen

et al. 2020

Journal of Nanomaterials

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“…Chien-I Wua and Jiann-Wen Huangand [ 39 ] successfully prepared nano-titanium dioxide powder by the supercritical fluid microemulsion system and supercritical drying method with titanium dioxide precursor titanium isopropoxide (TTIP) as raw material. Shancheng Yan et al [ 40 ] successfully synthesized CdS semiconductor nanomaterials in supercritical carbon dioxide medium. The material had a uniform particle size distribution; its particle size ranged from 5 to 10 nm; and it exhibited good gas diffusion, a low viscosity, and a high-quality permeability.…”

Section: Hot Issues and Future Trendsmentioning

confidence: 99%

A Bibliometric Analysis and Review of Supercritical Fluids for the Synthesis of Nanomaterials

Zhang

Xing

et al. 2021

Nanomaterials

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Since the 1990s, supercritical fluids for the synthesis of nanomaterials have been paid more and more attention by researchers and have gradually become one of the most important ways to prepare nanomaterials. In this study, literature data on “supercritical fluids for the synthesis of nanomaterials” from 1998 to 2020 were obtained from the Web of Science database, and the data were processed and analyzed by the bibliometric method combined with Microsoft office 2019, Origin 2018, VOSviewer, and other software, so as to obtain the research status and development trend of “supercritical fluids for the synthesis of nanomaterials”. The results show that since literature on “supercritical fluids for the synthesis of nanomaterials” appeared for the first time in 1998, the number of articles published every year has risen. In terms of this field, China has become the second-largest publishing country after the United States, and China and the United States display a lot of cooperation and exchanges in this field. “Supercritical CO2”, “supercritical water”, “supercritical antisolvent”, “surface modification”, and so on have become the research hotspots of “supercritical fluids for the synthesis of nanomaterials”.

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“…Photochemical sewerage treatments have been organized using photocatalyst such as metal oxides (TiO 2 [10], ZnO [11,12]), sulfides [13], and oxynitrides [14] because of its inexpensive, well organized and their stability. ZnO has been used widely in environmental treatments has it can be used in broad temperature range [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Developing the NiO/CuTiO3/ZnO Ternary Semiconductor Heterojunction for Harnessing Photocatalytic Activity of Reactive Dye with Enhanced Durability

Divya¹,

Sivakumar²,

Sakthi³

et al. 2021

J Inorg Organomet Polym

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Solar active ternary NiO/CuTiO 3 /ZnO semiconductor heterojunction were developed by alcoholic dispersion technique. As prepared ternary system and parent photocatalysts were analyze crystalline phase, surface morphology, light absorbance property, electron hole accusation parting and significant functional groups by means of specific physicochemical feature measurements. From the results, enhanced visible light photo mineralization, superior efficiency of charge carriers separation and better photocatalytic degradation of reactive orange 30 were confirmed for ternary NiO/CuTiO 3 /ZnO semiconductor heterojunction. Hydroxyl radical in the radical trapping experiments confirmed the photocatalytic degradation, which plays an important role in removal of hazardous dye from industrial effluents. This work demonstrates that synergetic effect of CuTiO 3 and NiO in which it proves to be a good option for recovering the consumption of visible light of ZnO-based materials in the ternary hybrid conduction bands.

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Preparation and Photoelectrochemical Properties of CdS Nanoparticles Using Supercritical Carbon Dioxide

Cited by 4 publications

References 19 publications

Green Synthesis of ZnO-GO Composites for the Photocatalytic Degradation of Methylene Blue

Green Synthesis of ZnO-GO Composites for the Photocatalytic Degradation of Methylene Blue

A Bibliometric Analysis and Review of Supercritical Fluids for the Synthesis of Nanomaterials

Developing the NiO/CuTiO3/ZnO Ternary Semiconductor Heterojunction for Harnessing Photocatalytic Activity of Reactive Dye with Enhanced Durability

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