Synthesis of Cerium Molybdate Hierarchical Architectures and Their Novel Photocatalytic and Adsorption Performances

Dong, Mingyan; Lin, Qiang; Sun, Huajun; Chen, Dan; Zhang, Ting; Wu, Qingzhi; Li, Shipu

doi:10.1021/cg200904t

Cited by 50 publications

(19 citation statements)

References 88 publications

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“…Subsequently, the mixed solution was adjusted to various pH value (1.73, 3.00, 5.00, 7.00, 9.00, and 11.00) with an ammonia solution or nitric acid solution. Then, the mixture was transferred into a Teflon-lined stainless steel autoclave and heated in the oven according to the setting time (1,4,8,12,16,20,24,36, and 48 h) and temperature (25, 50, 70, 80, 100, 140, and 180 o C). Unless otherwise stated, the reaction conditions of pH, temperature, and time are set at pH=5.00, 180 o C for 24 h. Finally, the resultant solid was separated by centrifugation and washed with deionized water and ethanol three times and then dried at 80 °C for 8 h in the air.…”

Section: Preparation Of Cdmoomentioning

confidence: 99%

“…The controllable synthesis of microscale and nanoscale materials with special morphology, architecture and properties have rapidly developed into a promising field in material chemistry [1][2][3][4][5][6][7] . Controlling synthesis conditions can generate different material structures, and changes in these structure directly affect their properties.…”

Section: Introductionmentioning

confidence: 99%

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CdMoO4 Micro-ellipsoids: Controllable Synthesis, Growth Mechanism, and Photocatalytic Activity

Liu

Gao

et al. 2016

Mat. Res.

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CdMoO 4 micro-ellipsoids were synthesized by a simple hydrothermal route with the assistance of nonionic surfactant Triton X-100 and characterized by X-ray diffraction, scanning electron microscopy and UV-Vis diffuse reflectance spectroscopy. The effects of hydrothermal pH, temperature, and time on the morphology and photocatalytic activity of CdMoO 4 were investigated. With an initial hydrothermal pH of 5.00, CdMoO 4 micro-ellipsoids were obtained at 180 °C for 24 h and found to possess the highest photocatalytic activity-89% Rhodamine B can be degraded for 30 minutes presented in the 0.4 g/L CdMoO 4 suspension. The formation mechanism of the CdMoO 4 micro-ellipsoids was initiated by the formation of small nanoparticles and bulk structures afterwards, which was followed by the growth of micro-ellipsoids. Experiment results showed that the evolution of the micro-ellipsoids was an Ostwald ripening process.

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Section: Preparation Of Cdmoomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

CdMoO4 Micro-ellipsoids: Controllable Synthesis, Growth Mechanism, and Photocatalytic Activity

Liu

Gao

et al. 2016

Mat. Res.

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“…cerium or molybdenum, may affect the protective properties of the composite coatings. Dong et al prepared cerium molybdate particles with different morphologies, such as the bundle-like, flower-like, and microspheric structures [24]. The nanostructure of Ce-Mo shows excellent adsorption and catalytic properties [24].…”

Section: Introductionmentioning

confidence: 99%

“…Dong et al prepared cerium molybdate particles with different morphologies, such as the bundle-like, flower-like, and microspheric structures [24]. The nanostructure of Ce-Mo shows excellent adsorption and catalytic properties [24]. Amino acids, for example: glycine, lysine, serine, and glutaminate used at synthesis of cerium molybdate have influence on its morphology [25].…”

Section: Introductionmentioning

confidence: 99%

Ni/cerium Molybdenum Oxide Hydrate Microflakes Composite Coatings Electrodeposited from Choline Chloride: Ethylene Glycol Deep Eutectic Solvent

et al. 2020

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Cerium molybdenum oxide hydrate microflakes are codeposited with nickel from a deep eutectic solvent-based bath. During seven days of exposure in 0.05 M NaCl solution, the corrosion resistance of composite coating (Ni/CeMoOxide) is slightly reduced, due to the existence of some microcracks caused by large microflakes. Multielemental analysis of the solution, in which coatings are exposed and the qualitative changes in the surface chemistry (XPS) show selective etching molybdenum from microflakes. The amount of various molybdenum species within the surface of coating nearly completely disappear, due to the corrosion process. Significant amounts of Ce3+ compounds are removed, however the corrosion process is less selective towards the cerium, and the overall cerium chemistry remains unchanged. Initially, blank Ni coatings are covered by NiO and Ni(OH)2 in an atomic ratio of 1:2. After exposure, the amount of Ni(OH)2 increases in relation to NiO (ratio 1:3). For the composite coating, the atomic ratios of both forms of nickel vary from 1:0.8 to 1:1.3. Despite achieving lower corrosion resistance of the composite coating, the applied concept of using micro-flakes, whose skeleton is a system of Ce(III) species and active form are molybdate ions, may be interesting for applications in materials with potential self-healing properties.

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“…[5 -7]. Rare-earth (RE) compound nanomaterials have been widely used in many practical applications because of their intrinsic 4f electrons [8][9][10][11][12][13]. Recently, some works have been reported on the synthesis of RE compound nanowires or nanotubes by the electrodeposition process assisted by anodic aluminium oxide (AAO) because of its unique structure properties.…”

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Controllable synthesis of NdCo _x O _y nanowire arrays and magnetic behaviour

2012

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The amorphous NdCo x O y nanowire arrays have been successfully fabricated using anodic aluminium oxide (AAO) membrane templates by suction filtration at subatmospheric pressure (SFSP). The morphology and chemical composition of NdCo x O y nanowires were characterised by a scanning electron microscope, a transmission electron microscope, selected area electron diffraction, X-ray diffraction and energy dispersive spectra, respectively. The results reveal that there are plenty of NdCo x O y nanowires in the nanopores of the AAO template, and the NdCo x O y nanowires are all uniform in diameter. The concentration of reactants, the subatmospheric pressure and the co-precipitation time played an important role in the formation of NdCo x O y nanowires. The NdCo x O y nanowires with different diameters were fabricated with AAO of different nanopore sizes, the luminescence spectrum of NdCo x O y nanowires were doped with different Eu 3+ concentrations and different morphological luminescence intensities of NdCo x O y :Eu 3+ indicate that the method of SFSP is a feasible and controllable approach. The hysteresis loops of the Nd 2 O 3 , NdCo x O y and NdLa x O y nanowire arrays were carried out by a vibrating sample magnetometer (VSM); the magnetic behaviour of rare earth oxide can be modulated by doping the magnetic cobalt (Co) and non-magnetic Lanthanum (La) elements.1. Introduction: Materials with one-dimensional (1D) nanostructures, which exhibit a wide range of magnetic, electrical and optical properties [1-4], have attracted a lot of attention. Therefore various methods were developed to fabricate them such as sol -gel, electrodeposition and template-based approaches etc.[5 -7]. Rare-earth (RE) compound nanomaterials have been widely used in many practical applications because of their intrinsic 4f electrons [8][9][10][11][12][13]. Recently, some works have been reported on the synthesis of RE compound nanowires or nanotubes by the electrodeposition process assisted by anodic aluminium oxide (AAO) because of its unique structure properties. The results reveal that the nanowires or nanotubes of RE oxide can be controllably fabricated by the method of the AAO template in shape and nanosize [14 -16].The performances of neodymium compounds have been studied and applied in many fields. Li et al.[17] synthesised metal alloy Co-Nd nanotube arrays by electrodeposition in the AAO template and showed excellent properties such as soft magnetism. The research of Rana et al. [18] showed that neodymium-doped titania coated-nickel ferrite composite nanoparticles significantly enhance the photocatalytic degradation of methyl orange and antimicrobial performance. Neodymium nanomaterials with various morphologies, such as nanowires, nanotubes and nanoparticles, have been fabricated by the self-catalyst method and the wet chemical method [19][20][21].We attempted for the first time to synthesise the amorphous NdCo x O y nanowire arrays by the method of suction filtration at subatmospheric pressure (SFSP) using AAO as a template. The r...

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Synthesis of Cerium Molybdate Hierarchical Architectures and Their Novel Photocatalytic and Adsorption Performances

Cited by 50 publications

References 88 publications

CdMoO4 Micro-ellipsoids: Controllable Synthesis, Growth Mechanism, and Photocatalytic Activity

CdMoO4 Micro-ellipsoids: Controllable Synthesis, Growth Mechanism, and Photocatalytic Activity

Ni/cerium Molybdenum Oxide Hydrate Microflakes Composite Coatings Electrodeposited from Choline Chloride: Ethylene Glycol Deep Eutectic Solvent

Controllable synthesis of NdCo _x O _y nanowire arrays and magnetic behaviour

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Synthesis of Cerium Molybdate Hierarchical Architectures and Their Novel Photocatalytic and Adsorption Performances

Cited by 50 publications

References 88 publications

CdMoO4 Micro-ellipsoids: Controllable Synthesis, Growth Mechanism, and Photocatalytic Activity

CdMoO4 Micro-ellipsoids: Controllable Synthesis, Growth Mechanism, and Photocatalytic Activity

Ni/cerium Molybdenum Oxide Hydrate Microflakes Composite Coatings Electrodeposited from Choline Chloride: Ethylene Glycol Deep Eutectic Solvent

Controllable synthesis of NdCo x O y nanowire arrays and magnetic behaviour

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Controllable synthesis of NdCo _x O _y nanowire arrays and magnetic behaviour