Facile Preparation of Silver Halide Nanoparticles as Visible Light Photocatalysts

Cui, Linfan; Jiao, Tifeng; Zhang, Qingrui; Zhou, Jingxin; Peng, Qiuming

doi:10.5772/60910

Cited by 19 publications

(13 citation statements)

References 35 publications

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“…This evidence confirms the theoretic stoichiometric atomic ratio between Ag and Cl atoms in AgCl. The data were in agreement with those documented elsewhere [ 30 ].…”

Section: Resultssupporting

confidence: 92%

“…The x - and y -axis labels were energy/keV and count/cps, respectively [30]. The EDX spectra of AgCl-NPs–loaded exopolysaccharide nanocomposite confirm the existence of silver and chlorine atoms.…”

Section: Resultsmentioning

confidence: 99%

“…Their concentration must be always higher than that of Ag ions in the reaction mixture. However, it is necessary to point out that the AgCl nanoparticles are aggregated into large clusters, which prevented an accurate estimation of their morphology and size distributions [ 30 ]. An analogical conclusion was made in previous reports onthe controlled synthesis of AgCl-NPs using the bioflocculant of Bradyrhizobium japonicum [ 24 ].…”

Section: Resultsmentioning

confidence: 99%

“…The Energy dispersive X-ray (EDX) spectra were recorded in order to provide further confirmation on the formation of AgCl-NPs on exopolysaccharide template. The x - and y -axis labels were energy/keV and count/cps, respectively [ 30 ]. The EDX spectra of AgCl-NPs–loaded exopolysaccharide nanocomposite confirm the existence of silver and chlorine atoms.…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

et al. 2016

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A simple and green method was developed for the biosynthesis of AgCl nanoparticles, free from Ag nanoparticles, using the exopolysaccharide-based bioflocculant of nitrogen fixing Azotobacter chroococcum XU1 strain. AgCl nanoparticles were characterized by UV-Vis, X-ray diffraction (XRD), Fourier Transform-Infra Red (FT-IR) and Scanning electron microscopy-energy dispersive X-ray (SEM-EDX). The concentration-dependent and controllable method for the synthesis of AgCl nanoparticles of a certain size and morphology was developed. As-synthesized AgCl nanoparticles were characterized bya high content of AgCl and exhibited strong antimicrobial activity towards pathogenic microorganisms such as E. coli, S. aureus and C. albicans. The biofabricated AgCl nanoparticles can be exploited as a promising new biocidalbionanocomposite against pathogenic microorganisms.

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“…This evidence confirms the theoretic stoichiometric atomic ratio between Ag and Cl atoms in AgCl. The data were in agreement with those documented elsewhere [ 30 ].…”

Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

et al. 2016

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“…22 Cui et al reported on the facile preparation of silver halide nanoparticles on visible light photocatalysts. 23 Interestingly, as the size of Ag NPs changes during the reaction, their unique properties dissipate and change as well. 24 Accordingly, mutual contact between the Ag NPs and their aggregation renders them unstable.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of silver nanostructures in ionic liquid media and their application to photodegradation of methyl orange

Park

Hira

Muthuchamy

et al. 2019

Nanomaterials and Nanotechnology

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Silver nanostructures (silver nanopaerticles e.g AgNPs and silver nanoplates e.g AgNPls) of various sizes and shapes were prepared using different reducing agents in ionic liquid media. The ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, which acts both as a cosolvent and a surfactant, was used to synthesize smaller and more ordered silver nanostructures. Spherical nanoparticles (silver NPs) were prepared using sodium borohydride as a reducing agent. On the other hand, plate-shaped silver nanostructures (silver NPls) were prepared using hydrazine hydrate as a reducing agent. The as-synthesized silver nanostructures were characterized by scanning electron microscopy, powder X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy, and Brunauer-Emmett-Teller analysis. The resulting materials were applied for the photodegradation of methyl orange under visible light irradiation. Because of their large surface area, the silver NPs showed better photocatalytic activity compared with that of Ag NPls.

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Photocatalytic degradation of 2,4-dichlorophenol using nanomaterials silver halide catalysts

Moja,

Mapossa,

Chirwa

et al. 2024

Environ Sci Pollut Res

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In this study, the photocatalytic activity of nanomaterials Ag/AgX (X = Cl, Br, I) is reported. Highly efficient silver halide (Ag/AgX where X = Cl, Br, I) photocatalysts were synthesized through a hydrothermal method. The samples were characterized using a range of techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer–Emmett–Teller (BET) to check their structural, morphology, textural and optical properties. In addition, the photocatalytic activity of photocatalysts was evaluated through the degradation of 2,4-dichlorophenol (2,4-DCP) under UV and visible light irradiation. XRD analysis confirmed the presence of a single-phase structure (pure phase) in the synthesized photocatalysts. SEM micrographs showed agglomeration with a non-uniform distribution of particles, which is a characteristic of surfactant-free precipitation reactions in aqueous media. The Ag/AgBr photocatalyst exhibited the best degradation efficiency, resulting in 83.37% and 89.39% photodegradation after 5 h of UV and visible light irradiation, respectively. The effect of catalyst loading, initial solution pH, and 2,4-DCP concentration was investigated for the best-performing Ag/AgBr photocatalyst. The degradation kinetics were best described by the pseudo-first-order Langmuir–Hinshelwood model. The photocatalytic capacity of Ag/AgBr decreased by 50% after five reuse cycles. SEM images revealed heightened levels of photodegradation on the catalyst surface. The study proved the feasibility of using simple synthesis methods to produce visible light active photocatalysts capable of degrading refractory phenolic pollutants in aqueous systems.

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Facile Preparation of Silver Halide Nanoparticles as Visible Light Photocatalysts

Cited by 19 publications

References 35 publications

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

Exopolysaccharide-Based Bioflocculant Matrix of Azotobacter chroococcum XU1 for Synthesis of AgCl Nanoparticles and Its Application as a Novel Biocidal Nanobiomaterial

Synthesis of silver nanostructures in ionic liquid media and their application to photodegradation of methyl orange

Photocatalytic degradation of 2,4-dichlorophenol using nanomaterials silver halide catalysts

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