Cost-effective large-scale synthesis of ZnO photocatalyst with excellent performance for dye photodegradation

Tian, Chungui; Zhang, Qi; Wu, Aiping; Jiang, Meijia; Liang, Zongsuo; Jiang, Baojiang; Fu, Honggang

doi:10.1039/c2cc16434e

Cited by 547 publications

(217 citation statements)

References 23 publications

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“…Various semiconducting nano-photocatalysts, especially metal oxide semiconductors such as TiO 2 and ZnO, are being extensively investigated. 6,7,[17][18][19] The wide band gap of some metal oxides limits their light absorption in UV region, however, leading to less use of sunlight. 20 In order to effectively utilize sunlight, noble plasmonic nanostructured metals, such as Au, Ag, and Pt, are deposited on the surface of semiconductors.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu₂O Core–Shell Heteronanowires

Xiong¹,

Chen³

et al. 2014

ACS Appl. Mater. Interfaces

131

110

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A novel class of one-dimensional (1D) plasmonic Ag@Cu2O core-shell heteronanowires have been synthesized at room temperature for photocatalysis application. The morphology, size, crystal structure and composition of the products were investigated by XRD, SEM, TEM, XPS, and UV-vis instruments. It was found the reaction time and the amount of Ag nanowires play crucial roles in the formation of well-defined 1D Ag@Gu(2)O core-shell heteronanowires. The resultant 1D Ag@Cu2O NWs exhibit much higher photocatalytic activity toward degradation of organic contaminants than Ag@Cu2O core-shell nanopartides or pure Cu2O nanospheres under solar light irradiation. The drastic enhancement in photocatalytic activity could be attributed to the surface plasmon resonance and the electron sink effect of the Ag NW cores, and the unique 1D core-shell nanostructure.

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Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu₂O Core–Shell Heteronanowires

Xiong¹,

Chen³

et al. 2014

ACS Appl. Mater. Interfaces

131

110

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“…Recently, various reports have shown that ZnO is one of the potential photocatalyst materials. For instances, scientists found that ZnO nanoparticles exhibit higher rate than that of TiO 2 nanoparticles (Velmurugan and Swaminathan 2011;Tian et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of zinc oxide-mediated solar light decoloration of Acid Yellow 99 dye by addition of β-CD

Pitchaimuthu¹,

Subramanian²,

Kannan³

et al. 2014

Appl Water Sci

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In the current work, the commercially available ZnO photocatalyst was used to investigate the photodecoloration of Acid yellow 99 (AY99) dye under solar light radiation. Promising enhancement of photodecoloration of AY99 dye was also achieved by the addition of b-cyclodextrin (b-CD) with the ZnO (ZnO-b-CD). The effects of process parameters such as initial concentration, pH, catalyst loading, and illumination time on the extent of decoloration were investigated. The optimum catalyst loading was observed at 2.0 g/L. The higher photoactivity of ZnOb-CD/solar light system than ZnO/solar light system can be ascribed due to the ligand to metal charge transfer (LMCT) from b-CD to Zn II . The complexation patterns have been confirmed with UV-visible and FT-IR spectroscopy and the interaction between ZnO and b-CD has been characterized by FE-SEM, powder XRD analysis, and UV-visible diffuse reflectance spectroscopy.

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“…Photocatalysis can be used as an abundant and clean energy source for different purposes like environmental remediation, clean energy production, and so forth [1][2][3]. Recent day's lot of research is going on, to develop novel photocatalyst and improve its efficiency in visible/solar light [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Investigation of Visible Light Photocatalytic Activity of C Doped TiO₂/CdS Core-Shell Nanocomposite

Lavand

Malghe

Singh

2015

Indian Journal of Materials Science

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Carbon (C) doped TiO 2 /CdS core-shell nanocomposite (C/TiO 2 /CdS) was synthesized using microemulsion method. Synthesized powder was characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), energy dispersive Xray spectroscopy (EDX), transmission electron microscopy (TEM), and UV-visible spectrophotometery. TEM images reveal that C/TiO 2 /CdS core-shell heterostructure is successfully prepared with CdS as a core and C doped TiO 2 as a shell. UV-visible absorption spectra show that CdS nanoparticles act as a sensitizer and effectively enhance the photoabsorption capacity of C/TiO 2 /CdS nanocomposite in visible region. Visible light photocatalytic activity of synthesized nanocomposite was evaluated for the degradation of methylene blue. C/TiO 2 /CdS core-shell nanocomposite exhibits better photocatalytic activity as compared to bare TiO 2 , CdS, CdS/TiO 2 , and C doped TiO 2 .

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Cost-effective large-scale synthesis of ZnO photocatalyst with excellent performance for dye photodegradation

Abstract: Zinc oxide with excellent photocatalytic performance for the photodegradation of dyes (superior to Degussa P25 TiO(2)) could be easily prepared in large quantity by direct calcination of zinc acetate (Zn(Ac)(2)·2H(2)O).

Cited by 547 publications

References 23 publications

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu₂O Core–Shell Heteronanowires

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu₂O Core–Shell Heteronanowires

Enhancement of zinc oxide-mediated solar light decoloration of Acid Yellow 99 dye by addition of β-CD

Synthesis, Characterization, and Investigation of Visible Light Photocatalytic Activity of C Doped TiO₂/CdS Core-Shell Nanocomposite

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Cost-effective large-scale synthesis of ZnO photocatalyst with excellent performance for dye photodegradation

Abstract: Zinc oxide with excellent photocatalytic performance for the photodegradation of dyes (superior to Degussa P25 TiO(2)) could be easily prepared in large quantity by direct calcination of zinc acetate (Zn(Ac)(2)·2H(2)O).

Cited by 547 publications

References 23 publications

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu2O Core–Shell Heteronanowires

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu2O Core–Shell Heteronanowires

Enhancement of zinc oxide-mediated solar light decoloration of Acid Yellow 99 dye by addition of β-CD

Synthesis, Characterization, and Investigation of Visible Light Photocatalytic Activity of C Doped TiO2/CdS Core-Shell Nanocomposite

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Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu₂O Core–Shell Heteronanowires

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu₂O Core–Shell Heteronanowires

Synthesis, Characterization, and Investigation of Visible Light Photocatalytic Activity of C Doped TiO₂/CdS Core-Shell Nanocomposite