Silver nanoplate aggregation based multifunctional black metal absorbers for localization, photothermic harnessing enhancement and omnidirectional light antireflection

Zhang, Xiaoyang; Shan, Feng; Zhou, Hongfu; Su, Dan; Xue, Xin; Wu, Jing-Yuan; Chen, Yuzhang; Zhao, Ning; Zhang, Tong

doi:10.1039/c7tc04486k

Cited by 34 publications

(23 citation statements)

References 62 publications

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“…The size of Ag nanoparticles was remarkably increased and individual particles were present in the mixture, as shown in Figure 2 g,h. The tendency of forming larger Ag nanoparticles may be ascribed to a competitive growth mechanism [ 33 , 34 ], in which unstable and active small particles were dissolved to Ag + by photogenerated oxidative species and then reduced to Ag atoms to be redeposited on larger and much more stable Ag nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

Electrospinning Ag-TiO2 Nanorod-Loaded Air Treatment Filters and Their Applications in Air Purification

Wang

Zhang

et al. 2020

Molecules

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The efficient treatment of the problem of air pollution is a practical issue related to human health. The development of multi-functional air treatment filters, which can remove various kinds of pollutants, including particulate matter (PM) and organic gases, is a tireless pursuit aiming to address the actual needs of humans. Advanced materials and nano-manufacturing technology have brought about the opportunity to change conventional air filters for practical demands, with the aim of achieving the high-efficiency utilization of photons, a strong catalytic ability, and the synergetic degradation of multi-pollutants. In this work, visible-responding photocatalytic air treatment filters were prepared and combined with a fast and cost-effective electrospinning process. Firstly, we synthesized Ag-loaded TiO2 nanorod composites with a controlled size and number of loaded Ag nanoparticles. Then, multi-functional air treatment filters were designed by loading catalysts on electrospinning nanofibers combined with a programmable brush. We found that such Ag-TiO2 nanorod composite-loaded nanofibers displayed prominent PM filtration (~90%) and the degradation of organic pollutants (above 90%). The superior performance of purification could be demonstrated in two aspects. One was the improvement of the adsorption of pollutants derived from the increase of the specific surface area after the loading of catalysts, and the other was the plasmonic hot carriers, which induced a broadening of the optical absorption in the visible light range, meaning that many more photons were utilized effectively. The designed air treatment filters with synergistic effects for eliminating both PM and organic pollutants have promising potential for the future design and application of novel air treatment devices.

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Section: Resultsmentioning

confidence: 99%

Electrospinning Ag-TiO2 Nanorod-Loaded Air Treatment Filters and Their Applications in Air Purification

Wang

Zhang

et al. 2020

Molecules

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“…Laser irritation of the Ag NP membrane promoted sintering. When laser irradiated the Ag NPs, surface plasmon [21] was excited among Ag NPs and generated strong heat through absorption [22,23]. This thermal effect can trigger the decomposition of the PVP capping layer and the surface melting of Ag NPs.…”

Section: Morphology and Characteristics Of Silver Membranementioning

confidence: 99%

Laser-Scribed Lossy Microstrip Lines for Radio Frequency Applications

Yan

Fang

et al. 2019

Applied Sciences

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Laser-direct writing has become an alternative method to fabricate flexible electronics, whereas the resistive nature of laser-scribed conductors may distort the radio-frequency characteristics of circuits for high-frequency applications. We demonstrate that the transmission characteristics of microstrip lines are insensitive to the resistance of laser-scripted conductors when the sheet resistance is not above 0.32 Ω/ . On the other hand, the transmission and reflection characteristics of the MS lines can be simply modified through the accommodation of the resistance of the conductors, because a laser can trigger the sintering and melting of laser produced silver nanostructures. This could provide an alternative way to fabricate radio frequency (RF) resistors and promote their applications to flexible radio-frequency devices and systems.

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“…The combination of membrane and plasmon based photocatalysts can reduce the "secondary pollution" resulting from the leakage of the catalyst itself and can also lower the cost. For example, an emerging technology, seawater desalination and catalysis, combined with plasmonic photocatalysts, has paid closer attention to solving the bottlenecks resulting from the shortage of fresh water [113][114][115]. A bifunctional membrane, which contains TiO 2 islands, Au films and porous anodized aluminum oxide (AAO) substrate from the top to bottom, was reported for an effective steam generation and pollutants elimination [114] (Figure 12a).…”

Section: Water Treatmentmentioning

confidence: 99%

Progress in the Utilization Efficiency Improvement of Hot Carriers in Plasmon-Mediated Heterostructure Photocatalysis

et al. 2019

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The effect of plasmon-induced hot carriers (HCs) enables the possibility of applying semiconductors with wide band gaps to visible light catalysis, which becomes an emerging research field in environmental protections. Continued efforts have been made for an efficient heterostructure photocatalytic process with controllable behaviors of HCs. Recently, it has been discovered that the improvement of the utilization of HCs by band engineering is a promising strategy for an enhanced catalytic process, and relevant works have emerged for such a purpose. In this review, we give an overview of the recent progress relating to optimized methods for designing efficient photocatalysts by considering the intrinsic essence of HCs. First, the basic mechanism of the heterostructure photocatalytic process is discussed, including the formation of the Schokkty barrier and the process of photocatalysis. Then, the latest studies for improving the utilization efficiency of HCs in two aspects, the generation and extraction of HCs, are introduced. Based on this, the applications of such heterostructure photocatalysts, such as water/air treatments and organic transformations, are briefly illustrated. Finally, we conclude by discussing the remaining bottlenecks and future directions in this field.

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Silver nanoplate aggregation based multifunctional black metal absorbers for localization, photothermic harnessing enhancement and omnidirectional light antireflection

Abstract: A silver nanoplate aggregation based plasmonic absorber layer with excellent light confinement and photothermic harvesting performance in the broadband range.

Cited by 34 publications

References 62 publications

Electrospinning Ag-TiO2 Nanorod-Loaded Air Treatment Filters and Their Applications in Air Purification

Electrospinning Ag-TiO2 Nanorod-Loaded Air Treatment Filters and Their Applications in Air Purification

Laser-Scribed Lossy Microstrip Lines for Radio Frequency Applications

Progress in the Utilization Efficiency Improvement of Hot Carriers in Plasmon-Mediated Heterostructure Photocatalysis

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