Low-temperature growth and optical properties of Ce-doped ZnO nanorods

Yang, Jing; Gao, Ming; Yang, Lili; Zhang, Yongjun; Lang, Jihui; Wang, Dandan; Wang, Yaxin; Liu, Huilian; Fan, Hougang

doi:10.1016/j.apsusc.2008.08.001

Cited by 160 publications

(60 citation statements)

References 27 publications

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“…13 shows the average pore diameter and isotherms for GCR and CCR CNPs, respectively. It is clear that all isotherm curves reach a plateau when the relative pressure reaches unity [38]. This indicates that the materials prepared have no pores in macropore region (i.e., 500 Å), means pores are in mesopore region and the sample is mesoporous.…”

Section: Bet Analysismentioning

confidence: 74%

Green and chemical-engineered CuFe2O4: characterization, cyclic voltammetry, photocatalytic and photoluminescent investigation for multifunctional applications

Surendra¹,

Veerabhdraswamy

Anantharaju

et al. 2018

J Nanostruct Chem

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CuFe 2 O 4 nanoparticles (CNPs) with cubic and tetragonal spinel structures were synthesized by Jatropha oil-assisted green combustion route (GCR) and urea-assisted chemical combustion route (CCR) and well-characterized. The photocatalytic activity of CNPs prepared via GCR and CCR showed 96 and 83% sunlight degradation of Malachite green (MG) dye, respectively. Electrochemical properties of CNPs were studied by means of Cyclic Voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The current research work pledges to provide some novel insights into the design of material for multifunctional long-term applications for environmental clean-up.

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Section: Bet Analysismentioning

confidence: 74%

Green and chemical-engineered CuFe2O4: characterization, cyclic voltammetry, photocatalytic and photoluminescent investigation for multifunctional applications

Surendra¹,

Veerabhdraswamy

Anantharaju

et al. 2018

J Nanostruct Chem

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“…Decreased UV emission was considered due to the increase in the nanoradiative defects and decrease in the Ce-doped ZnO nanorod size [21]. Comparing the two curves, the green emission peak of the Ce-doped ZnO nanorods was sharply suppressed and this phenomenon has been reported by Yang et al [15]. We ascribe the decrease in the green emission intensity after cerium doping to the reaction time.…”

Section: Optical Analysismentioning

confidence: 64%

Low-temperature growth and optical properties of Ce-doped ZnO nanorods

Xia¹,

Hu²,

Zhou³

2013

Journal of Experimental Nanoscience

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Ce-doped ZnO nanorod arrays were grown on zinc foils by a hydrothermal method at 180 � C. The effects of Ce-doping on the structure and optical properties of ZnO nanorods were investigated in detail. The characterisation of the rod array with X-ray diffraction and X-ray photoelectron spectroscopy indicated that Ce 3þ ions were incorporated into the ZnO lattices. There were no diffraction peaks of Ce or cerium oxide in the pattern. From UV-Vis spectra, we observed a red shift in the wavelength of absorption and decreased band gap due to the Ce ion incorporation in ZnO. The photoluminescence integrated intensity ratio of the UV emission to the deep-level green emission (I UV /I DLE ) was 1.25 and 2.87, for ZnO and Ce-doped ZnO nanorods, respectively, which shows a great promise for the Ce-doped ZnO nanorods with applications in optoelectronic devices.

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“…It is also known that the oxygen vacancy could occur in three different charge states: 1) neutral oxygen vacancy; 2) singly ionized oxygen vacancy and 3) doubly ionized oxygen vacancy [14,30]. Based on g value, most of the experimental investigations of oxygen vacancies in undoped ZnO fall on two catagories [31] one set of reports associate oxygen vacancies with the g-value of 1.96, the other with g value of 1.990.…”

Section: Resultsmentioning

confidence: 99%

“…Unfortunately, little work has been reported on the fabrication and photocatalytic activity of organic contaminants by Ce-doped ZnO. In addition, the dopant sites, defect induced by the doping have strong impact on the structural and optical properties of Ce-doped ZnO [14]. So the preparation and characterization of Ce-doped ZnO still need further research.…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Photocatalytics Activities of Ce-Doped ZnO Nanoparticles

Djaja¹,

Saleh²

2013

MSA

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Ce-doped ZnO nanoparticles with various doping concentrations of cerium ion were prepared by the co-precipitation method. All prepared nanoparticles were characterized by electron spin resonance (ESR), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD) and UV-Vis diffuse reflectance spectroscopy. All nanoparticles show X-ray diffraction pattern that matched with ZnO in its wurzite structure and average grain size was in the range of 13 -16 nm. UV-Vis measurements indicated a red shift of the photophysical response of ZnO after doping that was exhibited in reflection spectra in the visible region between 300 -800 nm. In addition, it has been found from electron spin resonance measurements that defects, which are likely to be oxygen vacancy and an electron trapped at cerium site are formed in our Ce-doped ZnO particles. Photocatalytic activities of Ce-doped ZnO were evaluated by irradiating the nanoparticles solution to ultraviolet light by taking methyl orange as organic dye. The experiment demonstrated that the photodegradation increased as doping concentrations increased at first and then decreased when the doping concentration exceeded 9 at%. It is proposed that the photocatalytic activity is strongly dependent on the formation of oxygen vacancy and an electron trapped at cerium site.

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Low-temperature growth and optical properties of Ce-doped ZnO nanorods

Cited by 160 publications

References 27 publications

Green and chemical-engineered CuFe2O4: characterization, cyclic voltammetry, photocatalytic and photoluminescent investigation for multifunctional applications

Green and chemical-engineered CuFe2O4: characterization, cyclic voltammetry, photocatalytic and photoluminescent investigation for multifunctional applications

Low-temperature growth and optical properties of Ce-doped ZnO nanorods

Characteristics and Photocatalytics Activities of Ce-Doped ZnO Nanoparticles

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