Combined Au/Ag nanoparticle creation in ZnO nanopillars by ion implantation for optical response modulation and photocatalysis

Macková, Anna; Jágerová, A.; Lalik, Ondrej; Mikšová, Romana; Poustka, David; Mistrı́k, Jan; Holý, V.; Schutter, J.D.; Kentsch, Ulrich; Marvan, Petr; Azarov, Alexander; Galeckas, Augustinas

doi:10.1016/j.apsusc.2022.155556

Cited by 11 publications

(7 citation statements)

References 50 publications

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“…Among these technologies, surface-enhanced Raman spectroscopy (SERS) has been identified as an impressive technique for recognizing environmental and biological traces of harmful substances, with superiorities such as prompt response, high sensitivity, and fingerprint characterization. , Silicon wafers and glass are the major substrates traditionally used in SERS . Nano-fabricated materials have been accurately prepared using ion beams, e-beam lithography, laser processing, and other methods to overcome the limitations associated with traditional SERS substrates. However, because of the high complexity of these substrate preparation techniques, the cost of large-scale production is too high.…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Printed AgNPs@Paper Swab for SERS Screening of Pesticide Residues on Apples and Pears

Wang

Hao

Zhao

et al. 2023

J. Agric. Food Chem.

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In recent years, growing food safety and quality concerns have emerged and created an urgent need for the development of rapid and reliable food control technologies. This study proposes a novel surface-enhanced Raman spectroscopy (SERS) substrate printing technology that utilizes commercial filter paper functionalized by silver nanoparticles. We modified the Automatic TLC Sampler using a two-dimensional (2D) printer. The modification allows for various sampling modes which can be applied to 2D printing. The shape and size of nano silver on the substrate were determined, and the substrate sensitivity, uniformity, and stability were evaluated. As demonstrated by the experimental outcomes, the proposed technology is highly sensitive and reproducible, that is, the limit of quantitation was 10 −5 mg/kg, and the spot-to-spot and block-to-block Raman intensity variations were below 4.2%. We also successfully applied the technology to pears and apples for thiram recognition, yielding outstanding detectability down to 2.5 × 10 −6 and 3.9 × 10 −7 mg/mL (equal to 2.5 × 10 −3 and 3.9 × 10 −4 mg/kg), respectively. These were well below the maximum residue limit (7 mg/kg). More importantly, the linear relationships between thiram levels and the SERS intensity allow for sensitive monitoring of minute variations in agricultural insecticide residues. This proposed detection method can realize in situ detection with a strong signal fingerprint.

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Section: Introductionmentioning

confidence: 99%

Two-Dimensional Printed AgNPs@Paper Swab for SERS Screening of Pesticide Residues on Apples and Pears

Wang

Hao

Zhao

et al. 2023

J. Agric. Food Chem.

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“…[13] Therefore, various attempt has been concerned at synthesizing a modified ZnO photocatalyst via replacement of metal or non-metal ions, [5,6,8,10] combination with another semiconductor, [14][15][16] and deposition of noble metals on the surface. [16][17][18] Recently, the deposition of noble metals (Ag, Au, etc.) onto the surface of ZnO is an effective approach to enhance photocatalytic activity.…”

Section: Introductionmentioning

confidence: 99%

“…Among these, ZnO decorated with noble metal Ag nanoparticles has shown better photocatalytic performance and increased catalyst stability than pure ZnO. [16,17] In 2010, Xie and Wu reported the ZnO/Ag nanospheres for enhancing the photodegradation of Rhodamine B under UV light. [19] Six years later, the Ag/ZnO nanoparticles were synthesized via the solvothermal method using CTABr as a template to improve MB degradation.…”

Section: Introductionmentioning

confidence: 99%

“…In spite of much research on the effect of ZnO materials that have been explored for the removal of organic pollutants, the significant disadvantage of ZnO materials is the broadband gap and quick recombination of electron‐hole pairs, hindering its photocatalytic efficiency and restricting its widespread use in the industry [13] . Therefore, various attempt has been concerned at synthesizing a modified ZnO photocatalyst via replacement of metal or non‐metal ions, [5,6,8,10] combination with another semiconductor, [14–16] and deposition of noble metals on the surface [16–18] . Recently, the deposition of noble metals (Ag, Au, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…onto the surface of ZnO is an effective approach to enhance photocatalytic activity. Among these, ZnO decorated with noble metal Ag nanoparticles has shown better photocatalytic performance and increased catalyst stability than pure ZnO [16,17] …”

Section: Introductionmentioning

confidence: 99%

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Facile Synthesis of ZnO/Ag Nanostructure with Enhanced Photocatalytic Activity

et al. 2023

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A series of x%Ag/ZnO (x: 0; 1; 2; 5; 10) nanostructures were successfully synthesized through the facile method. The material's structures were confirmed through X‐ray diffraction, while their morphology, elemental distribution, and components were analyzed using cross‐sectional transmission electron microscopy (XTEM), Field‐emission scanning electron microscopy (FESEM). The optical properties of Ag/ZnO revealed a decrease in band gap from 3.2 eV to 2.83 eV and a significant reduction in photoluminescence intensity with increasing Ag nanoparticle loading on the surface of ZnO. The photocatalytic activity of synthesized Ag/ZnO flower‐like nanostructure was evaluated in the photodegradation of methylene blue (MB) under UV‐Vis irradiation. The photocatalytic results indicated that decorating Ag nanoparticles on the surface of ZnO improved the photodegradation of MB. Interestingly, the 5%Ag/ZnO showed the highest effectiveness, achieving a 99% removal efficiency of MB for 60 minutes under UV‐Vis irradiation. Notably, the ultra performance liquid chromatography‐ tandem mass spectroscopy (UPLC‐MS/MS) confirmed the structure of intermediates, while total organic carbon (TOC) removal was 47%. Moreover, the proposed mechanism for the charge transfer process was based on the results of radical scavenging experiments, which showed that superoxide was the dominant reactive species. Finally, the 5%Ag/ZnO was stable and reused at least five times.

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Atomically dispersed nano Au clusters stabilized by Zr on the TS-1 surface: Significant enhancement of catalytic oxidation ability using H2 and O2

Peng

Chen

et al. 2023

Applied Surface Science

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Combined Au/Ag nanoparticle creation in ZnO nanopillars by ion implantation for optical response modulation and photocatalysis

Cited by 11 publications

References 50 publications

Two-Dimensional Printed AgNPs@Paper Swab for SERS Screening of Pesticide Residues on Apples and Pears

Two-Dimensional Printed AgNPs@Paper Swab for SERS Screening of Pesticide Residues on Apples and Pears

Facile Synthesis of ZnO/Ag Nanostructure with Enhanced Photocatalytic Activity

Atomically dispersed nano Au clusters stabilized by Zr on the TS-1 surface: Significant enhancement of catalytic oxidation ability using H2 and O2

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