Ionic liquid/surfactant-hydrothermal synthesis of dendritic PbS@CuS core-shell photocatalysts with improved photocatalytic performance

Chang, Chi‐Jung; Chen, Jemkun; Huang, Ci-You; Hsieh, Shao-Ching; Wu, Shu-Yii

doi:10.1016/j.apsusc.2021.149106

Cited by 31 publications

(11 citation statements)

References 70 publications

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“…Moreover, the optical bandgap of the prepared CuS QDs and CuS QDs @ ZnO hybrid nanocomposite can be deduced from the UV–Vis diffuse reflectance result according to the Kubelka–Munk function 72 . From the data, we conclude that all the systems follow the direct allowed transition, and the values of the corresponding bandgap are represented in Table 4 which is in close agreement with its visible light absorption ability 38 , 49 .…”

Section: Resultssupporting

confidence: 71%

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Copper sulfide and zinc oxide hybrid nanocomposite for wastewater decontamination of pharmaceuticals and pesticides

Mohammed

Ali

Gomaa

et al. 2022

Sci Rep

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In this work, hybrid nanocomposites of CuS QDs @ ZnO photocatalysts are fabricated through a facile microwave-assisted (MW) hydrothermal method as a green preparation process. The prepared photocatalysts (PCs) are employed under simulated sunlight (SL) for the degradation of ciprofloxacin, ceftriaxone, ibuprofen pharmaceuticals, methylene blue dye, and 2,4,5-trichlorophenoxyacetic acid (2,4-D) pesticide. The prepared photocatalysts are characterized in detail using several compositional, optical, and morphological techniques. The influence of the CuS (QDs) wt. % on morphological, structural, as well as photocatalytic degradation efficiency have been investigated. The small displacement between the (107) plane of CuS and the (102) plane of ZnO can confirmed the existence of lattice interaction, implying the formation of p-n heterojunctions. TEM and XRD results demonstrated that the CuS QDs are established and uniformly decorated on the surface of ZnO NRs, confirming the forming of an efficient CuS QDs @ ZnO heterojunction nanostructures. The CuS QDs @ ZnO hybrid nanocomposites showed enhancement in crystallinity, light absorption, surface area, separation of e–h pair and inhibition in their recombination at an interfacial heterojunction. In addition it is found that, 3 wt% CuS QDs @ ZnO has the foremost influence. The results showed improvement of photocatalytic activity of the 3% CuS QDs @ ZnO hybrid nanocomposite as compared to the bare ZnO nanorods. The impressive photocatalytic performance of CuS @ ZnO heterostructure nanorods may be attributed to efficient charge transfer. The prepared CuS QDs @ ZnO hybrid nanocomposites exhibited 100% removal for MB dye, after 45 min, and after 60 min for ibuprofen, ciprofloxacin pharmaceuticals, and 2.4.5 trichloro phenoxy acetic acid pesticide with the catalyst amount of 0.2 g/L. Although 100% removal of ceftriaxone pharmaceutical acheived after 90 min. In addition CuS QDs @ ZnO hybrid nanocomposites exhibited complete removal of COD for ibuprofen, ceftriaxone pharmaceuticals and 2.4.5 trichloro phenoxy acetic acid pesticide after 2 h with no selectivity. Briefly, 3% CuS QDs@ZnO hybrid nanocomposites can be considered as promising photoactive materials under simulated sunlight for wastewater decontamination.

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Section: Resultssupporting

confidence: 71%

“…96-900-4181), thus suggesting that the ZnO is well maintained during the loading of CuS 48 . It is observed that all peaks are very sharp and intense which indicated the crystalline nature of the prepared nanocomposites and the addition of copper does not alter the crystalline phase of nanocomposite 49 .…”

Section: Resultsmentioning

confidence: 91%

Copper sulfide and zinc oxide hybrid nanocomposite for wastewater decontamination of pharmaceuticals and pesticides

Mohammed

Ali

Gomaa

et al. 2022

Sci Rep

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“…Ionic liquids (ILs) are special type of solvents that have been considered in such processes. 24,25 ILs, in general, are organic salts that consist only of ions with low melting points of below ca. 100 °C.…”

Section: Introductionmentioning

confidence: 99%

“…In this process, the solvent environment is one of the determining factors in controlling the quality of the TiO 2 products. Ionic liquids (ILs) are special type of solvents that have been considered in such processes. , …”

Section: Introductionmentioning

confidence: 99%

Open-Structured Oxyfluorinated Titanium Phosphate Nanosheets Synthesized with the Assistance of an Ionic Liquid and Their Use as an Anode in Lithium-Ion Batteries

Gao

et al. 2021

Energy Fuels

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Two-dimensional Ti 2 (PO 4 ) 2 F nanosheets were synthesized with an ionic liquid (IL) containing PF 6 ([Bmim]PF 6 ) via a hydrothermal method. In comparison, only anatase titanium dioxide (TiO 2 ) nanoparticles were obtained when changing the type of anion ([Bmim]Br or [Bmim]BF 4 ) under the same conditions, suggesting that the anion type could greatly affect the crystalline phase, particle size, specific surface, and morphology of the final products; two-dimensional nanosheets were obtained in [Bmim]PF 6 , whereas nanocrystals with a relatively large surface were formed in the latter two ILs, as revealed by X-ray diffraction, nitrogen gas sorption, scanning electron microscopy, and transmission electron microscopy measurements. 1 H and 19 F nuclear magnetic resonance examinations of the fresh and recycled ILs suggest that the IL with the PF 6 anion experienced complete hydrolysis, which could be the key factor for the formation of such unique Ti 2 (PO 4 ) 2 F nanosheets. The electrochemical performances of such Ti 2 (PO 4 ) 2 F nanosheets were evaluated as anode materials in lithium-ion batteries (LIBs) in comparison to TiO 2 nanomaterials. The rate capability and cycling performance of the Ti 2 (PO 4 ) 2 F electrode outperformed the other two electrodes studied, as illustrated by cyclic voltammetry curves, charge/discharge behavior, and long cycling test, which is mainly due its unique layered structure and low surface area, which resulted in low volume change. The Ti 2 (PO 4 ) 2 F electrode derived from [Bmim]PF 6 displays a steady reversible capacity of 170 mAh/g and high cycling stability with over 70% capacity retention after 100 cycles. The synthesis of the controllable crystalline phase and morphology of Ti 2 (PO 4 ) 2 F nanomaterials with such ILs paves a useful route to prepare such alternative anode materials for LIBs.

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“…20 Besides, Chang et al synthesised dendritic PbS@CuS and investigated the interfacial charge transfer behaviour of the composites. 21 These research projects proved that coupling CuS with other materials is an appropriate choice for its application in photocatalysis.…”

Section: Introductionmentioning

confidence: 99%

Strategies for preparing TiO₂/CuS nanocomposites with cauliflower-like protrusions for photocatalytic water purification

et al. 2022

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Ionic liquid/surfactant-hydrothermal synthesis of dendritic PbS@CuS core-shell photocatalysts with improved photocatalytic performance

Cited by 31 publications

References 70 publications

Copper sulfide and zinc oxide hybrid nanocomposite for wastewater decontamination of pharmaceuticals and pesticides

Copper sulfide and zinc oxide hybrid nanocomposite for wastewater decontamination of pharmaceuticals and pesticides

Open-Structured Oxyfluorinated Titanium Phosphate Nanosheets Synthesized with the Assistance of an Ionic Liquid and Their Use as an Anode in Lithium-Ion Batteries

Strategies for preparing TiO₂/CuS nanocomposites with cauliflower-like protrusions for photocatalytic water purification

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Ionic liquid/surfactant-hydrothermal synthesis of dendritic PbS@CuS core-shell photocatalysts with improved photocatalytic performance

Cited by 31 publications

References 70 publications

Copper sulfide and zinc oxide hybrid nanocomposite for wastewater decontamination of pharmaceuticals and pesticides

Copper sulfide and zinc oxide hybrid nanocomposite for wastewater decontamination of pharmaceuticals and pesticides

Open-Structured Oxyfluorinated Titanium Phosphate Nanosheets Synthesized with the Assistance of an Ionic Liquid and Their Use as an Anode in Lithium-Ion Batteries

Strategies for preparing TiO2/CuS nanocomposites with cauliflower-like protrusions for photocatalytic water purification

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Strategies for preparing TiO₂/CuS nanocomposites with cauliflower-like protrusions for photocatalytic water purification