SYNTHESIS OF NOVEL HIGHLY POROUS CuS GOLF BALLS BY HYDROTHERMAL METHOD AND THEIR APPLICATION IN AMMONIA GAS SENSING

Xu, Jian; Yao, Chengli; Dong, Hua

doi:10.4067/s0717-97072013000200017

Cited by 9 publications

(6 citation statements)

References 20 publications

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“…4 One of these phases, covellite (CuS), a copper-deficient p-type semiconductor material, has been widely utilized due to its unique optical properties, chemical-sensing capabilities, solar energy absorption characteristics, and antibacterial properties. [4][5][6][7][8] Considering these properties, the CuS has the potential to be used in wide applications, including photothermal, photocatalytic, optoelectronic, and antibacterial materials. [4][5][6][7][8][9] In order to improve the performance of the application fields above utilizing CuS, it is essential to maximize the specific surface area through the nanonization of CuS.…”

Section: Introductionmentioning

confidence: 99%

“…Cu 2− x S can form stable and metastable phases according to the stoichiometric factor of “2 – x .” 4 One of these phases, covellite (CuS), a copper‐deficient p‐type semiconductor material, has been widely utilized due to its unique optical properties, chemical‐sensing capabilities, solar energy absorption characteristics, and antibacterial properties 4–8 . Considering these properties, the CuS has the potential to be used in wide applications, including photothermal, photocatalytic, optoelectronic, and antibacterial materials 4–9 …”

Section: Introductionmentioning

confidence: 99%

“…[4][5][6][7][8] Considering these properties, the CuS has the potential to be used in wide applications, including photothermal, photocatalytic, optoelectronic, and antibacterial materials. [4][5][6][7][8][9] In order to improve the performance of the application fields above utilizing CuS, it is essential to maximize the specific surface area through the nanonization of CuS. For example, photothermal conversion, one of the attractive properties of CuS, is possible because surface free electrons oscillate collectively due to localized surface plasmon resonance with near-infrared (NIR) rays incident on the surface of nanosized CuS.…”

Section: Introductionmentioning

confidence: 99%

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Large‐scale synthesis of CuS nanoparticles for photothermal materials using high‐concentration Cu complex ion precursor

Jeon

Ryu

et al. 2023

J Am Ceram Soc.

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Copper sulfide (CuS), a copper‐deficient p‐type semiconductor material, has been widely utilized due to its unique optical properties, low toxicity, and cost‐effectiveness. Although many studies have been conducted on synthesizing CuS nanoparticles, harsh synthetic conditions and low yield must be solved. This study presents a new methodology that can synthesize CuS nanoparticles in large quantities at room temperature and pressure using high‐concentration Cu complex ion precursors. This methodology is based on the theory that the critical nucleus radius and the critical nucleation free energy decrease as the concentration of the precursor increases to synthesize a large number of nanoparticles by applying low energy. In addition, it is possible to minimize the aggregation of nanoparticles, which is a problem of nanoparticles synthesized at a high precursor concentration through complex ions in the solution. We synthesized nanoparticles by controlling the precursor concentration from 0.1 to 2.5 M to confirm the effect of the precursor concentration on the size, shape, and yield of nanoparticles. As the precursor concentration increased, the particle size decreased, and the yield improved. The CuS nanoparticles synthesized at the highest concentration had a size of about 17 nm without a strong agglomeration and a yield of about 213.9 g/L. Furthermore, the nanoparticles showed excellent photothermal performance due to their high near‐infrared absorption. When about 0.1 g of the nanoparticles were irradiated with a Xenon lamp and an 808 nm laser, the maximum temperatures and rising rates were 53.7°C and 172.1°C and 13.8°C/mg and 33°C/mg, respectively. The excellent photothermal properties of CuS nanoparticles suggest the potential of this material for various applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Large‐scale synthesis of CuS nanoparticles for photothermal materials using high‐concentration Cu complex ion precursor

Jeon

Ryu

et al. 2023

J Am Ceram Soc.

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“…In recent years CuS has been synthesized with different morphologies such as nanotubes [2], nanowires [3], nano plates [4], nano rods [5], ball-flower [6], nanoparticles [7], hollow cages [8] and hollow sphere [9] with biological sulphate reduction [10], chemical route [11], chemical vapour deposition [12], chemical vapour reaction (CVR) [13], hydrothermal method [3], electrospinning [14], sono-chemical method [15], solid state synthesis [16], liquid precipitation route [17], liquid-liquid interface [18], pressure leaching process [19], micro-emulsions [20] and self-sacrificial templates [21]. Covellite (CuS) proved to be a very fruitful nanomaterial for solar cell applications [22], photocatalytic degradation of dyes [23], as a cathode material in lithium ion rechargeable secondary batteries [24], gas sensing [25] etc. Cu 2 S (chalcocite) possessing bulk band gap of 1.21 eV is a p-type semiconductor which lies in an optimum range for solar energy conversion [26], solar cells [27], catalysis [28], efficient photo catalyst [29], biosensors [30] and potential applications in optoelectronics devices [31].…”

Section: Introductionmentioning

confidence: 99%

Surfactant free fabrication of copper sulphide (CuS–Cu 2 S) nanoparticles from single source precursor for photocatalytic applications

Shamraiz

Badshah

Hussain

et al. 2017

Journal of Saudi Chemical Society

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A simple, ethylene glycol chemical reduction method was employed to synthesize CuSCu 2 S nanoparticles from single source copper thiourea complex for removal of persistent organic dyes. Fabricated CuS-Cu 2 S nanoparticles were characterized by powder XRD (PXRD), energy dispersive X-ray spectroscopy (EDX), selected area electron diffraction (SAED), transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM). Photocatalytic behaviour of CuS-Cu 2 S nanoparticles was evaluated under direct sunlight for degradation of methylene blue, malachite green, methyl orange, methyl violet and rhodamine B with the help of UV-vis spectroscopy. ª 2015 Production and hosting by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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“…Among the available metal chalcogenides, copper sulfide (CuS) is an important semiconducting material that has been widely used in the field of solar cells, photocatalysts, supercapacitors, gas sensor, etc. [5]- [8]. In recent years, efforts have been devoted to the formation of the complex structure and to control the valence state in copper based chalcogenide compounds.…”

Section: Introductionmentioning

confidence: 99%

Influence of Thickness on the Photosensing Properties of Chemically Synthesized Copper Sulfide Thin Films

Dhondge¹,

Gosavi²,

Gosavi³

et al. 2015

WJCMP

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We report here the influence of thickness on the photosensing properties of copper sulfide (CuS) thin films. The CuS films were deposited onto glass substrate by using a simple and cost effective chemical bath deposition method. The changes in film thickness as a function of time were monitored. The films were characterized using X-ray diffraction technique (XRD), field emission scanning electron microscopy (FE-SEM), optical measurement techniques and electrical measurement. X-ray diffraction results indicate that all the CuS thin films have an orthorhombic (covellite) structure with preferential orientation along (113) direction. The intensity of the diffraction peaks increases as thickness of the film increases. Uniform deposition having nanocrystalline granular morphology distributed over the entire glass substrate was observed through FE-SEM studies. The crystalline and surface properties of the CuS thin films improved with increase in the film thickness. Transmittance (except for 210 nm thick CuS film) together with band gap values was found to decrease with increase in thickness. I-V measurements under dark and illumination condition show that the CuS thin films give a good photoresponse.

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SYNTHESIS OF NOVEL HIGHLY POROUS CuS GOLF BALLS BY HYDROTHERMAL METHOD AND THEIR APPLICATION IN AMMONIA GAS SENSING

Cited by 9 publications

References 20 publications

Large‐scale synthesis of CuS nanoparticles for photothermal materials using high‐concentration Cu complex ion precursor

Large‐scale synthesis of CuS nanoparticles for photothermal materials using high‐concentration Cu complex ion precursor

Surfactant free fabrication of copper sulphide (CuS–Cu 2 S) nanoparticles from single source precursor for photocatalytic applications

Influence of Thickness on the Photosensing Properties of Chemically Synthesized Copper Sulfide Thin Films

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