Dimer-type heterostructure of Ag/Zn0.995Ni0.005O microspheres: Microwave-assisted synthesis and synergistic antibacterial activity

Tan, Linxiang; Wu, Wenjie; Yin, Qiang; Ke, Xiaoxia; Qiao, Ru; Tong, Guoxiu; Zhu, Lihua Julie

doi:10.1016/j.jiec.2017.04.011

Cited by 7 publications

(1 citation statement)

References 56 publications

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“…Gram-positive model organism B. subtilis was selected as an indicator in the photocatalytic antibacterial experiment. In a variety of qualitative and quantitative antibacterial test methods, − we selected a spread plate method to quantitatively evaluate the antibacterial effect of the photocatalysts under NIR irradiation. In this test, 10 mg of photocatalyst was added into 8 mL of nutrient broth containing B. subtilis at a concentration of 1.0 × 10 8 CFU mL –1 .…”

Section: Experimental Sectionmentioning

confidence: 99%

Preparation of Multishell-Structured NaYF₄:Yb,Tm,Nd@NaYF₄:Yb,Nd@SiO₂@ZnO Nanospheres with Effective NIR-Induced Photocatalytic Activity

Tan

Zhang

et al. 2020

J. Phys. Chem. C

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The multishell-structured NaYF 4 :Yb,Tm,Nd@NaYF 4 :Yb,Nd@ SiO 2 @ZnO nanospheres were synthesized for the first time by combining active-core/active-shell structured upconversion nanoparticles (UCNPs) with ZnO semiconductor. The composite nanospheres can be used as an efficient NIR-induced photocatalyst. Design of core/shell structure for the lanthanidedoped UCNPs (NaYF 4 :Yb,Tm,Nd@NaYF 4 :Yb,Nd) greatly improved their upconversion luminescence (UCL) efficiency which was attributed to the increase of NIR absorption at 808 nm based on Nd 3+ /Yb 3+ cascade-sensitized UC process and the efficient energy migration from active-shell to active-core. The composite photocatalyst used the enhanced NIR-to-UV upconverted light from UCNPs to realize dye photodegradation and photosterilization. On the basis of the results of the scavenger test, we confirm that the hydroxyl radicals (•OH) were considered as the main reactive species produced in the charge transfer and played a key role in the photocatalytic reaction process, while the superoxide radicals (•O 2 − ) and holes (h + ) as secondary active species also participated in the reaction. As measured by MTT assay, the composite photocatalyst exhibited low cytotoxicity for cells. The possible working mechanism can help us to improve the design and photochemical properties of the multishell-structured photocatalyst with NIR light response.

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Section: Experimental Sectionmentioning

confidence: 99%

Preparation of Multishell-Structured NaYF₄:Yb,Tm,Nd@NaYF₄:Yb,Nd@SiO₂@ZnO Nanospheres with Effective NIR-Induced Photocatalytic Activity

Tan

Zhang

et al. 2020

J. Phys. Chem. C

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Bosk-like monocrystal of Co–Sn–Se grown on porous Ti for electrocatalytic hydrogen evolution

Zhao

Jia

et al. 2019

J Mater Sci: Mater Electron

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Double-layered core–shell structure of NaYF 4 :Yb,Er@SiO 2 @Zn 1−x Mn x O for near-infrared-triggered photodegradation and antibacterial application

Tan

Song

et al. 2018

Journal of Industrial and Engineering Chemistry

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Dimer-type heterostructure of Ag/Zn0.995Ni0.005O microspheres: Microwave-assisted synthesis and synergistic antibacterial activity

Cited by 7 publications

References 56 publications

Preparation of Multishell-Structured NaYF₄:Yb,Tm,Nd@NaYF₄:Yb,Nd@SiO₂@ZnO Nanospheres with Effective NIR-Induced Photocatalytic Activity

Preparation of Multishell-Structured NaYF₄:Yb,Tm,Nd@NaYF₄:Yb,Nd@SiO₂@ZnO Nanospheres with Effective NIR-Induced Photocatalytic Activity

Bosk-like monocrystal of Co–Sn–Se grown on porous Ti for electrocatalytic hydrogen evolution

Double-layered core–shell structure of NaYF 4 :Yb,Er@SiO 2 @Zn 1−x Mn x O for near-infrared-triggered photodegradation and antibacterial application

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Dimer-type heterostructure of Ag/Zn0.995Ni0.005O microspheres: Microwave-assisted synthesis and synergistic antibacterial activity

Cited by 7 publications

References 56 publications

Preparation of Multishell-Structured NaYF4:Yb,Tm,Nd@NaYF4:Yb,Nd@SiO2@ZnO Nanospheres with Effective NIR-Induced Photocatalytic Activity

Preparation of Multishell-Structured NaYF4:Yb,Tm,Nd@NaYF4:Yb,Nd@SiO2@ZnO Nanospheres with Effective NIR-Induced Photocatalytic Activity

Bosk-like monocrystal of Co–Sn–Se grown on porous Ti for electrocatalytic hydrogen evolution

Double-layered core–shell structure of NaYF 4 :Yb,Er@SiO 2 @Zn 1−x Mn x O for near-infrared-triggered photodegradation and antibacterial application

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Preparation of Multishell-Structured NaYF₄:Yb,Tm,Nd@NaYF₄:Yb,Nd@SiO₂@ZnO Nanospheres with Effective NIR-Induced Photocatalytic Activity

Preparation of Multishell-Structured NaYF₄:Yb,Tm,Nd@NaYF₄:Yb,Nd@SiO₂@ZnO Nanospheres with Effective NIR-Induced Photocatalytic Activity