In-situ preparation of porous carbon nanosheets loaded with metal chalcogenides for a superior oxygen evolution reaction

Du, Yunchen; Khan, Shaukat; Zhang, Xingcai; Yu, Guofang; Liu, Ruliang; Zheng, Bingna; Nadimicherla, Reddeppa; Wu, Dehai; Fu, Ruowen

doi:10.1016/j.carbon.2019.04.048

Cited by 33 publications

(19 citation statements)

References 27 publications

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“…12d) as compared to previously reported results of Ag nanocomposites (Bishnoi et al 2018;Yang et al 2013;Mai et al 2017). Findings from the published papers show that Ag-based NPs are fine candidates in reducing MB under ambient light conditions, as AgNPs have the ability to harvest light in the visible region due to their localized surface Plasmon resonance property (Du et al 2019;Zhao et al 2019;Hu et al 2019;Awazu et al 2008). Particle sizes also affect the rate of a catalytic reaction.…”

Section: Photocatalytic Activitymentioning

confidence: 69%

Synthesis of selenium–silver nanostructures with enhanced antibacterial, photocatalytic and antioxidant activities

et al. 2019

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The development of a durable and efficient composite material that could perform a long-life antibacterial activity and radical scavenging ability is highly needed. In this paper, selenium nanostructures of different morphologies were synthesized by a wet chemical method under mild experimental setup. Silver nanoparticles were doped on the surface of these nanostructures and successfully characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray, and high-resolution transmission electron microscopy. The potential applications of the designed composite were investigated in multiple disciplines including antibacterial, antioxidant, and photocatalytic activities. The selenium silver (Se-Ag) nanocomposite was employed as an antibacterial agent against a Gram-positive bacterium and a Gram-negative bacterium, and our findings disclosed that the designed composite is an excellent material in inhibiting the challenged bacterial strains. The Se-Ag composite has shown excellent activity with 30-mm inhibition zone at 2 mg/ml concentration, and maintains significant antibacterial efficacy for 72 h, indicating its sustainable performance for a long-life period. Furthermore, Se-Ag nanocomposite also exhibited a significant radical scavenging property against 2,2-diphenyl-1-picrylhydrazyl free radical and an enhanced photocatalytic activity (90-95%) with complete dye decolorization in 70 min. The superior antibacterial activity (zone of inhibition 30 mm), photocatalytic (95%) and antioxidant performance (78%) of the nanocomposite are due to the combined antibacterial (17 mm), photocatalytic (~ 30%) and antioxidant potentials (15%) of the Ag and Se (16 mm, 40%, 25%), respectively.

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Section: Photocatalytic Activitymentioning

confidence: 69%

Synthesis of selenium–silver nanostructures with enhanced antibacterial, photocatalytic and antioxidant activities

et al. 2019

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“…effect of GO, puncture effect of Ag NPs, and inhibitory effect of SD. This study provides new insights into the design and fabrication of surface-modified GO and carbon materials [39][40][41][42][43] and their 2D hybrid multifunctional materials for advanced applications including biomedical 44 especially antibacterial applications, broadening the design and application scope of carbon and 2D materials.…”

Section: Resultsmentioning

confidence: 98%

Triple-synergistic 2D material-based dual-delivery antibiotic platform

Han

et al. 2020

NPG Asia Mater

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Two-dimensional (2D) nanomaterials have raised significant interest in not only energy and environmental fields but also biomedical areas. Among these materials, one type that has many interesting properties and possesses numerous exciting applications is graphene oxide (GO)-based 2D materials. However, their poor stability in aqueous solutions and weak bioactivities limit their use in biomedical applications, especially antimicrobial fields. In this study, GO was functionalized with hydrophilic polymers and used as a vector for silver nanoparticles (Ag NPs) and sulfadiazine (SD). The stability of the material in aqueous solutions was greatly improved. The antibacterial activity of the novel hybrid antibacterial system (HAS) was enhanced by over 3 times compared to that of the system lacking SD. The antibacterial performance of the HAS was due to the triple synergy: bacterial capping, puncture, and inhibition. This study provides new insights into the design and fabrication of surface-modified GO and carbon materials and their 2D hybrid multifunctional materials for advanced applications including biomedical and especially antibacterial applications, broadening the design and application scope of carbon and 2D materials.

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“…Over the past few decades, porous materials ( e.g. zeolites, 1 porous carbon, 2 mesoporous silica, 3 metal–organic frameworks (MOFs), 4 porous coordination polymers (PCPs), 5 porous organic cages (POCs), 6 porous organic polymers (POPs), 7 and others 8–10 ) have made a tremendous impact on broad applications, 11 including but not limited to gas adsorption and separation, 12–16 catalysis, 17–19 water treatment, 20–22 biological and chemical sensing, 23–25 drug delivery, 26,27 optoelectronics, 28–30 energy storage and conversion, 31–34 and many others. 35–37 According to the International Union of Pure and Applied Chemistry (IUPAC), 38 porous materials can be classified into three categories based on their pore diameter: microporous materials (pore size <2 nm), mesoporous materials (pore size between 2 and 50 nm), and macroporous materials (pore size >50 nm).…”

Section: Introductionmentioning

confidence: 99%