Uniform deposition of silver dots on sheet like BiVO4 nanomaterials for efficient visible light active photocatalyst towards methylene blue degradation

Basavalingaiah, K.R.; Udayabhanu,; Harishkumar, S.; Nagaraju, G.; Chikkahanumantharayappa,

doi:10.1016/j.flatc.2019.100142

Cited by 21 publications

(7 citation statements)

References 47 publications

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“…With further increment of the loading percentage of Ag to 3, 5, 8%, photocatalytic efficiency decreased. Possibly excessive Ag deposition on the surface of the nanosheet reduced the reactive sites of BVO and increased the recombination probability of photogenerated carriers [3,11]. The concentration of pure MB almost didn't show any reduction after 80 min irradiation, in Figure 7 (a).…”

Section: Photocatalytic Performance and Mechanismmentioning

confidence: 97%

Highly efficient BiVO₄ single-crystal nanosheets with dual modification: phosphorus doping and selective Ag modification

Fu¹,

Xu²,

Li³

et al. 2021

Nanotechnology

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BiVO4, a visible-light response photocatalyst, has shown tremendous potential because of abundant raw material sources, good stability and low cost. There exist some limitations for further applicaitions due to poor capability to separate electron–hole pairs. In fact, a single-component modification strategy is barely adequate to obtain highly efficient photocatalytic performance. In this work, P substituted some of the V atoms from VO4 oxoanions, namely P was doped into the V sites in the host lattice of BiVO4 by a hydrothermal route. Meanwhile, Ag as an attractive and efficient electron-cocatalyst was selectively modified on the (010) facet of BiVO4 nanosheets via facile photo-deposition. As a result, the obtained dually modified BiVO4 sheets exhibited enhanced photocatalytic degradation property of methylene blue (MB). In detail, photocatalytic rate constant (k) was 2.285 min−1 g−1, which was 2.78 times higher than pristine BiVO4 nanosheets. Actually, P-doping favored the formation of O vacancies, led to more charge carriers, and facilitated photocatalytic reaction. On the other hand, metallic Ag loaded on (010) facet effectively transferred photogenerated electrons, which consequently helped electron–hole pairs separation. The present work may enlighten new thoughts for smart design and controllable synthesis of highly efficient photocatalytic materials.

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Section: Photocatalytic Performance and Mechanismmentioning

confidence: 97%

Highly efficient BiVO₄ single-crystal nanosheets with dual modification: phosphorus doping and selective Ag modification

Fu¹,

Xu²,

Li³

et al. 2021

Nanotechnology

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“…Conductive hydrogels with silver materials including silver nanowires (Ag NWs), silver nanoparticles (Ag NPs), , silver-plated nylon fibers, and silver dots have been widely developed as a type of novel materials for flexible devices because of their excellent electrical conductivity and antibacterial activity . For instance, Lee et al.…”

Section: Introductionmentioning

confidence: 99%

“…Conductive hydrogels with silver materials including silver nanowires (Ag NWs), 13 silver nanoparticles (Ag NPs), 14,15 silver-plated nylon fibers, 16 and silver dots 17 have been widely developed as a type of novel materials for flexible devices because of their excellent electrical conductivity 18 and antibacterial activity. 19 For instance, Lee et al reported a biocompatible polydimethylsiloxane hydrogel incorporated with Ag NW, 20 which showed excellent electrical performance and good flexibility as well as superior stability under wet conditions.…”

Section: ■ Introductionmentioning

confidence: 99%

Robust Conductive Hydrogel with Antibacterial Activity and UV-Shielding Performance

Zhang

Sun

Cai

et al. 2020

Ind. Eng. Chem. Res.

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An ultra-tough conductive composite hydrogel with antibacterial activity and UV-shielding performance was prepared via a simple soaking approach. The soaking agent TA@LS-Ag was synthesized via a simple microwave-assisted reduction method using the green biomass tannic acid (TA) and sodium lignosulfonate (LS) as the carrier for silver nanoparticles (Ag NPs). The TA@LS-Ag/PVA composite hydrogel was then prepared by soaking the pure poly(vinyl alcohol) (PVA) hydrogel into the TA@LS-Ag suspension. The dense hydrogen bonding interactions between the hydroxyl groups in the PVA chain and oxygen-containing groups in TA@LS-Ag endowed the composite hydrogel with excellent mechanical properties, including great tensile strength (5.43 MPa), high toughness (30.51 MJ/m3), and outstanding crack resistance performance. The composite hydrogel also exhibited good electrical performance with high conductivity (4.1 S/m) and favorable sensitivity to stretch, compression, bending, and handwriting. In addition, the composite hydrogel exhibited excellent antibacterial activity and UV-blocking property. This study provides a feasible approach for fabricating multifunctional hydrogels, integrating the good mechanical performance with high conductivity, electric sensing, and excellent antibacterial activity for promising flexible electronic applications.

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“…Treatment of bacterial infections has been a matter of concern in the past until now (17,18). The use of nanotechnology by numerous approaches has so far been identified as one of the most important ways of overcoming bacterial resistance (19)(20)(21)32). Among the things that can be described as a new generation of antibacterial compounds are nanoparticles containing biopolymers such as chitosan (22), nanoparticles containing metals such as Au (23), Ag (24), Mg (25), Cd (26), Bi and Cu (27).…”

Section: Introductionmentioning

confidence: 99%

Preparation and Evaluation of the Physicochemical and Antimicrobial Properties of Biological Nanostructures Polyolactic Acid / Calcium Oxide by Hydrothermal Assisted Microwave Method

Moshafi

Ranjbar

Rafsanjnai

et al. 2020

Iran J Med Microbiol

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Background: Today, with the development of human life and the overwhelming fall of antibiotics and uncontrolled bacterial resistance, the need to find materials with antimicrobial effects is felt more than ever. Nanotechnology has created a new opportunity to investigate the antimicrobial effects of nanomaterials. Materials & Methods: In this study, using hydrothermal and microwave auxiliary chemicals, polylactic acid / calcium oxide nanostructures were prepared and the physicochemical and microbial properties of these nanostructures were evaluated. Bacterial strains were obtained from the Scientific and Industrial Research Organization of Iran, the collection center of industrial microorganisms. Results: Physicochemical characterization of optimized polylactic acid / calcium oxide nanostructures showed the antimicrobial effect of nanoparticles on 3 strains gram-positive bacteria Micrococcus luteus (PTCC 1110), Bacillus subtilis (PTCC 1023), Staphylococcus aureus (PTCC 1112) and 4 strains gram-negative bacteria Escherichia coli (PTCC 1330), Klebsiella pneumonia (PTCC 1053), Serratia marcescens (PTCC 1621), Pseudomonas aeruginosa (PTCC 1074). In this study, the observed MIC (minimum growth inhibition concentration) observed for both Gram-positive and Gram-negative bacteria ranged between 0.5

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Uniform deposition of silver dots on sheet like BiVO4 nanomaterials for efficient visible light active photocatalyst towards methylene blue degradation

Cited by 21 publications

References 47 publications

Highly efficient BiVO₄ single-crystal nanosheets with dual modification: phosphorus doping and selective Ag modification

Highly efficient BiVO₄ single-crystal nanosheets with dual modification: phosphorus doping and selective Ag modification

Robust Conductive Hydrogel with Antibacterial Activity and UV-Shielding Performance

Preparation and Evaluation of the Physicochemical and Antimicrobial Properties of Biological Nanostructures Polyolactic Acid / Calcium Oxide by Hydrothermal Assisted Microwave Method

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Uniform deposition of silver dots on sheet like BiVO4 nanomaterials for efficient visible light active photocatalyst towards methylene blue degradation

Cited by 21 publications

References 47 publications

Highly efficient BiVO4 single-crystal nanosheets with dual modification: phosphorus doping and selective Ag modification

Highly efficient BiVO4 single-crystal nanosheets with dual modification: phosphorus doping and selective Ag modification

Robust Conductive Hydrogel with Antibacterial Activity and UV-Shielding Performance

Preparation and Evaluation of the Physicochemical and Antimicrobial Properties of Biological Nanostructures Polyolactic Acid / Calcium Oxide by Hydrothermal Assisted Microwave Method

Contact Info

Product

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About

Highly efficient BiVO₄ single-crystal nanosheets with dual modification: phosphorus doping and selective Ag modification

Highly efficient BiVO₄ single-crystal nanosheets with dual modification: phosphorus doping and selective Ag modification