Enhanced Photocatalytic Activity Based on Composite Structure with Downconversion Material and Graphene

Fu, Ke; Huang, Jinzhao; Yao, Nannan; Xu, Xijin; Wei, Mingzhi

doi:10.1021/acs.iecr.5b04076

Cited by 16 publications

(10 citation statements)

References 37 publications

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“…Semiconductor photocatalysis as a green technology for wastewater/organic contaminants treatment and green energy production has attracted considerable attention since Fujishima and Honda realized water splitting to generate hydrogen by using TiO 2 in 1972 1 – 4 . Since then, various photocatalysts, such as transition metal oxides 5 – 8 , metal sulfides 9 – 12 , heterojunctions 13 – 15 , doping materials 16 – 18 , composite structures 19 , 20 , have been synthesized to improve the photocatalytic activities. Among them, metal chalcogenides were considered to be promising photocatalytic candidates due to their unique properties, such as suitable band gap, ideal electronic band position and thus exhibiting excellent catalytic activities 10 , 21 , 22 .…”

Section: Introductionmentioning

confidence: 99%

One-pot hydrothermal synthesis of CdS decorated CuS microflower-like structures for enhanced photocatalytic properties

Deng

Wang

Yang

et al. 2017

Sci Rep

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CdS decorated CuS structures have been controllably synthesized through a one-pot hydrothermal method. The morphologies and compositions of the as-prepared samples could be concurrently well controlled by simply tuning the amount of CdCl2 and thiourea. Using this strategy, the morphology of the products experienced from messy to flower-like morphologies with multiple porous densities, together with the phase evolution from pure CuS to the CdS/CuS composites. Serving as a photocatalyst, the samples synthesized with the addition of 1 mmol cadmium chloride and 3 mmol thiourea during synthetic process, showed the best photocatalytic activity, which could reach a maximum photocatalytic efficiency of 93% for methyl orange (MO) photodegradation after 150 min. The possible mechanism for the high photocatalytic efficiency of the sample was proposed by investigating the composition, surface area, structure, and morphology before and after photocatalytic reaction.

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Section: Introductionmentioning

confidence: 99%

One-pot hydrothermal synthesis of CdS decorated CuS microflower-like structures for enhanced photocatalytic properties

Deng

Wang

Yang

et al. 2017

Sci Rep

Self Cite

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“…As the content of nano-Fe 3 O 4 increased, the relative intensities of C–C and C–O peaks decreased. As shown in Figure 9 c, the O 1s fitting peaks of pure binderless fiberboard at 531.7 and 532.8 eV were ascribed to absorbed water and oxygen in OH groups, respectively [ 39 ]. Compared with the NFF composite, the O 1s band of the NFF binderless composite board was shifted to high binding energy.…”

Section: Resultsmentioning

confidence: 99%

Preparation of High Mechanical Performance Nano-Fe3O4/Wood Fiber Binderless Composite Boards for Electromagnetic Absorption via a Facile and Green Method

et al. 2018

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Fe3O4/wood fiber composites are prepared with a green mechanical method using only distilled water as a solvent without any chemical agents, and then a binderless composite board with high mechanical properties is obtained via a hot-press for electromagnetic (EM) absorption. The fibers are connected by hydrogen bonds after being mechanically pretreated, and Fe3O4 nanoparticles (NPs) are attached to the fiber surface through physical adsorption. The composite board is bonded by an adhesive, which is provided by the reaction of fiber composition under high temperature and pressure. The Nano-Fe3O4/Fiber (NFF) binderless composite board shows remarkable microwave absorption properties and high mechanical strength. The optional reflection loss (RL) of the as-prepared binderless composite board is −31.90 dB. The bending strength of the NFF binderless composite board is 36.36 MPa with the addition of 6% nano-Fe3O4, the modulus of elasticity (MOE) is 6842.16 MPa, and the internal bond (IB) strength is 0.81 MPa. These results demonstrate that magnetic nanoparticles are deposited in binderless composite board by hot pressing, which is the easiest way to produce high mechanical strength and EM absorbers.

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“…This relaxation corresponds to the DS process and is followed by the emission of light with a longer wavelength, which is often visible. Owing to this optical characteristic, DS materials have been studied and used in various research and industrial fields, such as UV light‐emitting diodes (LEDs), photovoltaics, photocatalysis, imaging and sensing devices, and anticounterfeit devices …”

Section: Introductionmentioning

confidence: 99%

Visualization of UV by Nanopatterned Down‐Shifting Materials Mimicking Human Retinal Cone Cells

Sohn

Park

Yoo

et al. 2019

Adv Funct Materials

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The conversion of invisible ultraviolet (UV) light to visible light by downshifting (DS) materials has a variety of important applications in the fields of optoelectronics and photonics. The ability to control emission colors as a function of the wavelength of incident UV light would significantly advance scientific research and technological applications. A novel strategy for UV visualization is demonstrated that employs nanoimprint lithography combined with a sol-gel process. The principles of trichromacy of human vision are applied; three DS materials sensitive to three different ranges of UV light are nanopatterned to mimic the three types of cone cells in the human retina. Each DS material then emits a distinctive color that can be recognized by each type of cone cells for visualization. The nanopatterned structure significantly intensifies the light emission by Mie scattering and spatially separates the three DS materials, thereby minimizing unwanted optical interference among them. The deliberately designed triple-nanopatterned DS materials exhibit various emission colors ranging from green, to orange, to pink depending on the wavelength of the incident UV light. The current work would contribute to the development of novel strategies for multicolor tunable emission that may lead to innovative applications.

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Enhanced Photocatalytic Activity Based on Composite Structure with Downconversion Material and Graphene

Cited by 16 publications

References 37 publications

One-pot hydrothermal synthesis of CdS decorated CuS microflower-like structures for enhanced photocatalytic properties

One-pot hydrothermal synthesis of CdS decorated CuS microflower-like structures for enhanced photocatalytic properties

Preparation of High Mechanical Performance Nano-Fe3O4/Wood Fiber Binderless Composite Boards for Electromagnetic Absorption via a Facile and Green Method

Visualization of UV by Nanopatterned Down‐Shifting Materials Mimicking Human Retinal Cone Cells

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