Aqueous synthesis and enhanced photocatalytic activity of ZnO/Fe2O3 heterostructures

Achouri, Faouzi; Corbel, Serge; Aboulaich, Abdelhay; Balan, Lavinia; Ghrabı, Ahmed; Said, Myriam Ben; Schneider, Raphaël

doi:10.1016/j.jpcs.2014.05.013

Cited by 93 publications

(42 citation statements)

References 39 publications

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“…γ -Fe 2 O 3 also exhibits modest photocatalytic activity and separability714. It can be used associated with ZnO or TiO 2 to enhance the visible light adsorption and increase the electron/hole separation1516. High magnetization of γ -Fe 2 O 3 has potential applications for cleaning polluted water with the help of magnetic separation.…”

mentioning

confidence: 99%

High saturation magnetization of γ-Fe2O3 nano-particles by a facile one-step synthesis approach

Cao

Pan

et al. 2016

Sci Rep

142

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We have demonstrated the synthesis of γ-Fe2O3 nano-particles through a facile and novel calcination process in the air. There is no pH regulation, gas atmosphere, additive, centrifugation or other complicated procedures during the preparing process. A detailed formation process of the nano-particles is proposed, and DMF as a polar solvent may slower the reaction process of calcination. The structures, morphologies, and magnetic properties of γ-Fe2O3 nano-particles were investigated systematically, and the pure γ-Fe2O3 nano-particles obtained at 200 °C display uniform morphology good magnetic property. The saturation magnetization of obtained pure γ-Fe2O3 is about 74 emu/g, which is comparable with bulk material (76 emu/g) and larger than other results. In addition, the photocatalytic activity for degradation of methylene blue is also studied, which shows proper photocatalytic activity.

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mentioning

confidence: 99%

High saturation magnetization of γ-Fe2O3 nano-particles by a facile one-step synthesis approach

Cao

Pan

et al. 2016

Sci Rep

142

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“…The solid was separated, washed with deionized water many times and dispersed in absolute ethanol, then was dried at 333 K overnight. The filtrate was analyzed by an AA2630 atomic absorption spectrophotometer, the results revealed that no Ag þ was detected; indicating that Ag þ was exhaustively precipitated by CO 3 2 À . Ag 2 CO 3 was also fabricated as the method mentioned above.…”

Section: Photocatalyst Preparationmentioning

confidence: 99%

“…However, fast recombination rate of electron-hole limits the efficiency of ZnO [3][4][5], resulting in low photocatalytic efficiency. To further improve the separation of photo-induced charge carriers, tremendous attempts have been executed including doping, controlling morphology, surface modifying and so on.…”

Section: Introductionmentioning

confidence: 99%

Efficient charge separation of Ag2CO3/ZnO composites prepared by a facile precipitation approach and its dependence on loading content of Ag2CO3

Xiang

Zhong

Huang

et al. 2016

Materials Science in Semiconductor Processing

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“…Iron oxide nanoparticles have magnetic properties for a strong influence by surface effects, such as the surface area of iron oxide created magnetic materials decreased, their replies to external magnetic field decreased, making it very difficult to regain the adsorbents after treatment has been full [14][15][16]. The photocatalytic degradation of different toxic organic contaminants is one of the challenging tasks, recently numerous of researches show that the photocatalytic system for iron oxide semiconductor composite can be effectively break through, the bottleneck of the single component semiconductor of oxides that interesting to reprocess from the products, with high reactivity in presence of visible light.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization and Photocatalysis of g-Fe2O3 Nanoparticles for Degradation of Cibacron Brilliant Yellow 3G-P

Alshamsi¹,

Hussein²

2018

Asian J. Chem.

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In this study, the maghemite γ-Fe2O3 nanoparticles were prepared using a co-precipitation method. The structural, morphological, thermal and its optical properties have been examined using different characterization techniques such as X-ray diffraction, transmission electron microscopy, scanning electron microscopy, energy dispersive spectroscopy, atomic force microscopy, Fourier transform infrared spectrometry, UV/visible spectrophotometer and thermogravimetric analysis. The results of XRD analysis showed the cubic structure of the γ-Fe2O3 nanoparticles. Furthermore, the morphology of the γ-Fe2O3 nanoparticles was obtained from SEM and AFM. The photocatalytic degradation of Cibacron Brilliant Yellow 3G-P (CB) was studied under visible light using γ-Fe2O3 nanoparticles as a photocatalyst. There are many factors, which has an effect on the efficiency of this process. Therefore a study was conducted on the effect of several parameters on γ-Fe2O3 like amount of catalyst, concentration of Cibacron Brilliant Yellow 3G-P and pH of solution. The results showed that efficiency of γ-Fe2O3 nanoparticles 68 % after 120 min which is more effective on the degradation of Cibacron Brilliant Yellow 3G-P. The photo degraded samples were analyzed by chemical oxygen demand (COD) analysis UV-visible spectrophotometer.

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Aqueous synthesis and enhanced photocatalytic activity of ZnO/Fe2O3 heterostructures

Cited by 93 publications

References 39 publications

High saturation magnetization of γ-Fe2O3 nano-particles by a facile one-step synthesis approach

High saturation magnetization of γ-Fe2O3 nano-particles by a facile one-step synthesis approach

Efficient charge separation of Ag2CO3/ZnO composites prepared by a facile precipitation approach and its dependence on loading content of Ag2CO3

Synthesis, Characterization and Photocatalysis of g-Fe2O3 Nanoparticles for Degradation of Cibacron Brilliant Yellow 3G-P

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