One-pot hydrothermal synthesis of CdS–CuS decorated TiO2 NTs for improved photocatalytic dye degradation and hydrogen production

Hou, Junwei; Huang, Bingxuan; Kong, Lingcong; Xie, Yu; Liu, Yansheng; Chen, Mengmeng; Wang, Qingyao

doi:10.1016/j.ceramint.2021.07.268

Cited by 22 publications

(5 citation statements)

References 37 publications

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“…[16][17][18][19][20][21][22][23][24][25][26] CuS is a typical narrow bandgap (1.2-2.0 eV) p-type semiconductor material preferred among visible light photocatalysts due to its low toxicity, simple preparation, and excellent physical and chemical stability. [27][28][29][30][31][32][33][34][35][36][37][38] However, the synthesis of pure CuS nanoparticles demands high pressure and temperature, which to some extent restricts their further use in commercial development. For example, Huang et al prepared TiO/CuS photocatalytic composites with cauliower-like shapes using a one-step hydrothermal method, which can effectively remove RhB pollutants by avoiding complex high-temperature calcination and complicated posttreatment.…”

Section: Introductionmentioning

confidence: 99%

Rational construction of ZnO/CuS heterostructures-modified PVDF nanofiber photocatalysts with enhanced photocatalytic activity

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Rational construction of ZnO/CuS heterostructures-modified PVDF nanofiber photocatalysts with enhanced photocatalytic activity

et al. 2022

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“…41-1049), which are denoted with •. 36 Besides, the pure CuS diffraction peaks observed at 2θ values of 27.04°, 27.73°, 29.39°, 31.81°, 32.85°, 48.07°and 59.06°can be indexed to the (100), ( 101), ( 102), ( 103), ( 006), ( 110) and ( 116) crystal plane of the hexagonal covellite structured CuS (PDF No. 06-0464), marked with *, confirming the presence of CuS.…”

Section: Resultsmentioning

confidence: 99%

CuS Nanoparticles Modified ZnO/CdS Dual Direct Z-type Heterostructure Nanocomposite for Efficient Visible-Light Photocatalytic Degradation RhB

Huang

2023

ECS J. Solid State Sci. Technol.

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The low-temperature hydrothermal and water bath methods are used to manufacture CuS@ZnO/CdS catalyst. The Rhodamine B degradation rate constant of CuS@ZnO/CdS is around 1.53×10-2 min-1, which is 3.9 times greater than that of ZnO. The coupling of CdS and loading of CuS onto ZnO surfaces were evaluated using XRD, SEM, TEM, and XPS. SEM demonstrated that 5 mg of CdS was the most effective in controlling the shape of ZnO nanoflakes. Ultraviolet-visible absorption (UV-Vis) and Photoluminescence (PL) spectra reveal that CdS and CuS decreased the bandgap of ZnO and boosted its ability to absorb visible light. Transient photocurrent response (TPR) and electrochemical impedance spectra (EIS) display that CdS and CuS facilitate the quick separation of photoexcited carriers in ZnO. Notably, the optimal weight ratio of CuS was determined to be 15%, since excessive amounts of CuS would operate as recombination centers and cover active sites. Additionally, the dual Z-scheme carriers movement mechanism was proposed using sacrificed agent experiments. In this study, CuS@ZnO/CdS photocatalyst degraded RhB nearly 99% in 80 min, which is superior to the earlier photocatalysts. Therefore, this article holds great significance in practical application of metal chalcogenide-modified ZnO-based photocatalysts with superior visible-light-induced degradation performance in environmental purification.

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“…CdS/CuS, a heterojunction of mixed MSs, is becoming a research hotspot, with several research groups using it to assess photo catalytic H 2 generation capability 17‐21 . Surprisingly, no attempt was made to maximize the super‐capacitive performance of these bimetallic composites.…”

Section: Introductionmentioning

confidence: 99%

“…CdS/CuS, a heterojunction of mixed MSs, is becoming a research hotspot, with several research groups using it to assess photo catalytic H 2 generation capability. [17][18][19][20][21] Surprisingly, no attempt was made to maximize the supercapacitive performance of these bimetallic composites. At this point, we are primarily focused on altering the Cu/Cd concentration ratio in the CdS/CuS heterojunction, which might aid in improving ion transport and intercalation mechanisms for supercapacitor applications.…”

Section: Introductionmentioning

confidence: 99%

Pre‐eminent design and performance of hybrid diatomic sulphide materials for supercapacitor applications

Babu

Sakthivel

Syamsai

et al. 2022

Intl J of Energy Research

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Summary An advanced type of CuCdS composite is synthesized using a one‐step synthesis method. Nanomaterials of CdS, CuS, and their bimetal sulphides were synthesized using hydrothermal method and employed as an electrode for supercapacitor applications. The optimized Cu/Cd cations ratio with S (at %: 29:29:42) of bimetallic CuCdS composites have an improved electrochemical capacitance of 180 F/g at 0.5 A/g with 80.2% retention and 88% coulombic efficiency after 2000 cycles at 1 mA cm−2, which is much greater than that of other Cu/Cd ratio altered composites and bare metal sulphides. This bimetallic Cu0.5Cd0.5S composite has the lowest Rs and Rct value of 0.245 and 6.3 Ω than other electrodes. The synergistic benefits of two metal ions with an optimal ratio and their distinctive structural advantages provide numerous active sites with enhanced electron transfer and intercalation processes, resulting in a considerable improvement. Furthermore, this technique is highly universal and can be adapted to virtually all transition metal dichalcogenide (TMD)‐related investigations to develop ideal electrode materials with significant structural and electrochemical fitting benefits, hence increasing the electrochemical performances of supercapacitor devices.

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One-pot hydrothermal synthesis of CdS–CuS decorated TiO2 NTs for improved photocatalytic dye degradation and hydrogen production

Cited by 22 publications

References 37 publications

Rational construction of ZnO/CuS heterostructures-modified PVDF nanofiber photocatalysts with enhanced photocatalytic activity

Rational construction of ZnO/CuS heterostructures-modified PVDF nanofiber photocatalysts with enhanced photocatalytic activity

CuS Nanoparticles Modified ZnO/CdS Dual Direct Z-type Heterostructure Nanocomposite for Efficient Visible-Light Photocatalytic Degradation RhB

Pre‐eminent design and performance of hybrid diatomic sulphide materials for supercapacitor applications

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