Plasmon-enhanced photocatalytic properties of nano Ag@AgBr on single-crystalline octahedral Cu2O (1 1 1) microcrystals composite photocatalyst

Liu, Li; Lin, Shuanglong; Hu, Jinshan; Liang, Yinghua; Cui, Wenquan

doi:10.1016/j.apsusc.2015.01.021

Cited by 38 publications

(7 citation statements)

References 53 publications

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“…For a detailed analysis of photocatalytic degradation kinetics of MO aqueous solution, the pseudo first-order model was applied to determine the rate constant of photodegradation with respect to the degradation time when the initial concentration of the pollutant is low, as expressed by Eq. 11 [ 3 , 40 , 49 , 50 ]. where C 0 is the initial concentration of MO, C is the concentration at time t , and k is the reaction rate constant.…”

Section: Resultsmentioning

confidence: 99%

“…Over the past decades, the environmental problem, especially wastewater induced by organic dye pollutants, has become a fatal issue accompanying the rapid industry growth, which restricted the sustainable development of human beings [ 1 – 3 ]. Therefore, a great effort has been made for seeking the highly active photocatalysts which could be applied for the environmental remediation [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

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One-Step Solvothermal Method to Prepare Ag/Cu2O Composite With Enhanced Photocatalytic Properties

Deng¹,

Wang²,

Zhou³

et al. 2016

Nanoscale Res Lett

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Ag/Cu2O microstructures with diverse morphologies have been successfully synthesized with different initial reagents of silver nitrate (AgNO3) by a facile one-step solvothermal method. Their structural and morphological characteristics were carefully investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), and the experimental results showed that the morphologies transformed from microcubes for pure Cu2O to microspheres with rough surfaces for Ag/Cu2O. The photocatalytic activities were evaluated by measuring the degradation of methyl orange (MO) aqueous solution under visible light irradiation. The photocatalytic efficiencies of MO firstly increased to a maximum and then decreased with the increased amount of AgNO3. The experimental results revealed that the photocatalytic activities were significantly influenced by the amount of AgNO3 during the preparation process. The possible reasons for the enhanced photocatalytic activities of the as-prepared Ag/Cu2O composites were discussed.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

One-Step Solvothermal Method to Prepare Ag/Cu2O Composite With Enhanced Photocatalytic Properties

Deng¹,

Wang²,

Zhou³

et al. 2016

Nanoscale Res Lett

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“…In recent decades, many semiconductor photocatalysts have been developed to tackle the increasing and serious water pollution [1]. TiO 2 as a photocatalyst due to its chemical stability, low cost, non-toxicity, etc.…”

Section: Introductionmentioning

confidence: 99%

Facile Preparation of Nano-Bi2MoO6/Diatomite Composite for Enhancing Photocatalytic Performance under Visible Light Irradiation

et al. 2018

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In this work, a new nano-Bi2MoO6/diatomite composite photocatalyst was successfully synthesized by a facile solvothermal method. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and UV-vis diffuse reflection spectroscopy (DRS) were employed to investigate the morphology, crystal structure, and optical properties. It was shown that nanometer-scaled Bi2MoO6 crystals were well-deposited on the surface of Bi2MoO6/diatomite. The photocatalytic activity of the obtained samples was evaluated by the degradation of rhodamine B (RhB) under the visible light (λ > 420 nm) irradiation. Moreover, trapping experiments were performed to investigate the possible photocatalytic reaction mechanism. The results showed that the nano-Bi2MoO6/diatomite composite with the mass ratio of Bi2MoO6 to diatomaceous earth of 70% exhibited the highest activity, and the RhB degradation efficiency reached 97.6% within 60 min. The main active species were revealed to be h+ and•O2−. As a photocatalytic reactor, its recycling performance showed a good stability and reusability. This new composite photocatalyst material holds great promise in the engineering field for the environmental remediation.

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“…The peaks at 367.7 and 373.6 eV can be classied as element Ag 0 , and the peaks at 367.1 and 373.1 eV may be categorized as the Ag + of AgBr. [32][33][34] All the evidence suggests the formation of metallic Ag on the sample surface during the photocatalytic test. In fact, this situation can be expected when visible light illuminates the samples.…”

Section: Photocatalytic Activitiesmentioning

confidence: 96%

One-pot synthesis of an AgBr/ZnO hierarchical structure with enhanced photocatalytic capacity

et al. 2017

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Plasmon-enhanced photocatalytic properties of nano Ag@AgBr on single-crystalline octahedral Cu2O (1 1 1) microcrystals composite photocatalyst

Cited by 38 publications

References 53 publications

One-Step Solvothermal Method to Prepare Ag/Cu2O Composite With Enhanced Photocatalytic Properties

One-Step Solvothermal Method to Prepare Ag/Cu2O Composite With Enhanced Photocatalytic Properties

Facile Preparation of Nano-Bi2MoO6/Diatomite Composite for Enhancing Photocatalytic Performance under Visible Light Irradiation

One-pot synthesis of an AgBr/ZnO hierarchical structure with enhanced photocatalytic capacity

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