Synthesis and characterization of Ag/TiO2 plasmonic photocatalyst supported on stainless steel webnet

Plasmonic nanostructures present substantial function in the advancement of modern materials science and technology. Plasmon-enhanced solar light is harvested to enhance the solar-to-fuel energy conversion efficiency. Both organic and inorganic semiconductor materials often serve as photocatalysts for the direct conversion of solar energy into fuels, owing to their superior stability, environmental compatibility and photocatalytic activity. However, semiconductor efficiency can be hindered by their inability to absorb visible light due to the vast band gap. More recently, a number of research has been performed to enhance photocatalyst and photovoltaic device efficiency by integrating plasmonic nanoparticles (NPs) with semiconductor materials. The presence of plasmonic NPs causes greater semiconductor absorption cross sections due to robust field enhancement, light absorption at longer wavelengths and enhanced electron–hole charge separation in semiconductor media, thus maximizing the efficiency of photocatalytic devices. In this study, we have prepared a new visible-light-driven Ag/TiO2 nanoparticles plasmonic photocatalyst coated on webnet stainless steel by the dip-coating method to enhance the visible light plasmonic photocatalyst. FESEM, EDX and UV–vis spectra analyses were carried-out to characterize the prepared catalysts. According to these tests, the Ag/TiO2 coated on the stainless steel webnet functioned quite well. In addition, the maximum conversion of carbon dioxide was achieved at about 20%. This study may provide new insight into the design and preparation of advanced visible-light photocatalytic materials.

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Plasmonic nanostructures, containing magnetic and semiconductor materials, in nanophotonics

Vestnik RFFI ◽

10.22204/2410-4639-094-02-23-25 ◽

2017 ◽

pp. 23-25

Author(s):

V.I. Belotelov ◽

Keyword(s):

Semiconductor Materials ◽

Plasmonic Nanostructures

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Ultra-high-Q resonances in plasmonic metasurfaces

Nature Communications ◽

10.1038/s41467-021-21196-2 ◽

2021 ◽

Vol 12 (1) ◽

Cited By ~ 2

Author(s):

M. Saad Bin-Alam ◽

Orad Reshef ◽

Yaryna Mamchur ◽

M. Zahirul Alam ◽

Graham Carlow ◽

...

Keyword(s):

Incident Light ◽

Reducing Power ◽

Field Enhancement ◽

Plasmonic Nanostructures ◽

High Q ◽

Alternative Material ◽

Order Of Magnitude ◽

Wavelength Scale ◽

Strong Confinement ◽

Sub Wavelength

AbstractPlasmonic nanostructures hold promise for the realization of ultra-thin sub-wavelength devices, reducing power operating thresholds and enabling nonlinear optical functionality in metasurfaces. However, this promise is substantially undercut by absorption introduced by resistive losses, causing the metasurface community to turn away from plasmonics in favour of alternative material platforms (e.g., dielectrics) that provide weaker field enhancement, but more tolerable losses. Here, we report a plasmonic metasurface with a quality-factor (Q-factor) of 2340 in the telecommunication C band by exploiting surface lattice resonances (SLRs), exceeding the record by an order of magnitude. Additionally, we show that SLRs retain many of the same benefits as localized plasmonic resonances, such as field enhancement and strong confinement of light along the metal surface. Our results demonstrate that SLRs provide an exciting and unexplored method to tailor incident light fields, and could pave the way to flexible wavelength-scale devices for any optical resonating application.

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Joining of SiO2 glass and 316L stainless steel using Bi–Ag-based active solders

Journal of Materials Science ◽

10.1007/s10853-020-05426-4 ◽

2020 ◽

Vol 56 (4) ◽

pp. 3444-3454

Author(s):

Felix Weber ◽

Markus Rettenmayr

Keyword(s):

Stainless Steel ◽

Cross Sections ◽

316L Stainless Steel ◽

Dissimilar Materials ◽

Intermetallic Phases ◽

Reaction Products ◽

Cast State ◽

Metallic Component ◽

X Ray ◽

Solder Interface

Abstract Active brazing is a commonly used method for joining dissimilar materials with at least one non-metallic component. In the present study, joining of SiO2 glass to 316L stainless steel was performed utilizing Bi–Ag-based solders. Ti up to a concentration of 4 and Mg up to 1 wt.% were added as active elements. Microstructures of the solder alloys in the as-cast state and of cross sections of the joined compounds were analysed using scanning electron microscopy and energy-dispersive X-ray spectroscopy. In the as-cast state of the solder, Ti is found in Bi–Ti intermetallic phases; Mg is partially dissolved in the fcc-(Ag) phase and additionally contained in a ternary Ag-Bi-Mg phase. After soldering, a tight joint was generated using several alloy compositions. Ti leads to the formation of reaction products at the steel/solder and glass/solder interfaces, and Mg is exclusively accumulated at the glass/solder interface.

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Analysis of the Process Parameter Influence in Laser Cladding of 316L Stainless Steel

Journal of Manufacturing and Materials Processing ◽

10.3390/jmmp2030055 ◽

2018 ◽

Vol 2 (3) ◽

pp. 55 ◽

Cited By ~ 5

Author(s):

Piera Alvarez ◽

M. Montealegre ◽

Jose Pulido-Jiménez ◽

Jon Arrizubieta

Keyword(s):

Stainless Steel ◽

Laser Cladding ◽

Process Parameters ◽

Cross Sections ◽

316L Stainless Steel ◽

Deposition Process ◽

Process Parameter ◽

Optimum Process ◽

Processing Times ◽

Manufacturing Technologies

Laser Cladding is one of the leading processes within Additive Manufacturing technologies, which has concentrated a considerable amount of effort on its development. In regard to the latter, the current study aims to summarize the influence of the most relevant process parameters in the laser cladding processing of single and compound volumes (solid forms) made from AISI 316L stainless steel powders and using a coaxial nozzle for their deposition. Process speed, applied laser power and powder flow are considered to be the main variables affecting the laser cladding in single clads, whereas overlap percentage and overlapping strategy also become relevant when dealing with multiple clads. By setting appropriate values for each process parameter, the main goal of this paper is to develop a processing window in which a good metallurgical bond between the delivered powder and the substrate is obtained, trying simultaneously to maintain processing times at their lowest value possible. Conventional metallography techniques were performed on the cross sections of the laser tracks to measure the effective dimensions of clads, height and width, as well as the resulting dilution value. Besides the influence of the overlap between contiguous clads and layers, physical defects such as porosity and cracks were also evaluated. Optimum process parameters to maximize productivity were defined as 13 mm/s, 2500 W, 30% of overlap and a 25 g/min powder feed rate.

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A visible light-driven plasmonic photocatalyst

Light Science & Applications ◽

10.1038/lsa.2014.14 ◽

2014 ◽

Vol 3 (1) ◽

pp. e133-e133 ◽

Cited By ~ 149

Author(s):

Francesca Pincella ◽

Katsuhiro Isozaki ◽

Kazushi Miki

Keyword(s):

Visible Light ◽

Plasmonic Photocatalyst ◽

Visible Light Driven

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Preparation of ZnWO4/TiO2 composite film and its photocathodic protection for 304 stainless steel under visible light

Nanotechnology ◽

10.1088/1361-6528/aaef9c ◽

2018 ◽

Vol 30 (4) ◽

pp. 045710 ◽

Cited By ~ 5

Author(s):

Xiutong Wang ◽

Jing Lei ◽

Qian Shao ◽

Xinran Li ◽

Xiaobo Ning ◽

...

Keyword(s):

Stainless Steel ◽

Visible Light ◽

Composite Film ◽

304 Stainless Steel ◽

Photocathodic Protection

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Visible‐Light Direct Conversion of Ethanol to 1,1‐Diethoxyethane and Hydrogen over a Non‐Precious Metal Photocatalyst

Chemistry - A European Journal ◽

10.1002/chem.201804664 ◽

2018 ◽

Vol 25 (1) ◽

pp. 189-194 ◽

Cited By ~ 7

Author(s):

Yuguang Chao ◽

Wenqin Zhang ◽

Xuemei Wu ◽

Nana Gong ◽

Zhihong Bi ◽

...

Keyword(s):

Visible Light ◽

Precious Metal ◽

Direct Conversion

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SiO2@Ag/AgCl: a low-cost and highly efficient plasmonic photocatalyst for degrading rhodamine B under visible light irradiation

RSC Advances ◽

10.1039/c4ra10843d ◽

2014 ◽

Vol 4 (110) ◽

pp. 64747-64755 ◽

Cited By ~ 12

Author(s):

Xuefeng Xu ◽

Man Wang ◽

Yanyan Pei ◽

Changchun Ai ◽

Liangjie Yuan

Keyword(s):

Aqueous Solution ◽

Visible Light ◽

Visible Light Irradiation ◽

Rhodamine B ◽

Photocatalytic Performance ◽

Low Cost ◽

Light Irradiation ◽

Nano Structure ◽

Plasmonic Photocatalyst ◽

Highly Efficient

The micro/nano-structure composite SiO2@Ag/AgCl was employed as a low cost photocatalyst for the degradation of RhB in aqueous solution under visible light irradiation, which exhibited excellent photocatalytic performance and stability.

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