Aging Behavior and Thermal Expansion of Novel Pb Alloys reinforced with Fly Ash Cenospheres Composite Foams

Novel AZ91D Mg alloy/fly-ash cenospheres (AZ91D/FAC) composites were fabricated by melt stir technique. The thermodynamic analyses of the interfacial reactions, the microstructure observation, and the phase analyses of the AZ91D/FAC composites were investigated. The results showed that the cenospheres were almost filled with Mg alloy matrix. In-situ MgO and Mg2Si phases were formed in Mg alloy matrix and near the interfaces between the cenospheres and Mg alloy matrix. Through the thermodynamic calculation, it can be found that the standard free enthalpy changes of these interfacial reactions are all negative at the temperature of Mg alloy melt preparation in this work, and these reactions can occur.

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Synthesis of fly-ash cenospheres coated with polypyrrole using a layer-by-layer method

Journal of Physics D Applied Physics ◽

10.1088/0022-3727/44/44/445301 ◽

2011 ◽

Vol 44 (44) ◽

pp. 445301 ◽

Cited By ~ 2

Author(s):

Qin Li ◽

Bing Wang ◽

Chuang Li ◽

Jianfeng Pang ◽

Jianping Zhai

Keyword(s):

Fly Ash ◽

Layer By Layer ◽

Layer Method ◽

Fly Ash Cenospheres

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Immobilization of BiOBr/BiOI Hierarchical Microspheres on Fly Ash Cenospheres as Visible Light Photocatalysts

Australian Journal of Chemistry ◽

10.1071/ch15157 ◽

2016 ◽

Vol 69 (1) ◽

pp. 119 ◽

Cited By ~ 3

Author(s):

Li Lin ◽

Ya Wang ◽

Manhong Huang ◽

Donghui Chen

Keyword(s):

Photocatalytic Activity ◽

Fly Ash ◽

Visible Light ◽

Diffuse Reflectance Spectroscopy ◽

Three Dimensional ◽

One Pot ◽

Transmission Electron ◽

Hierarchical Microspheres ◽

2D Nanosheets ◽

Fly Ash Cenospheres

Three-dimensional (3D) BiOBr/BiOI hierarchical microspheres were successfully fabricated on the surface of fly ash cenospheres (FACs) via a facile one-pot solvothermal method for the first time. The as-prepared samples were characterized by XRD, SEM, energy-dispersive X-ray spectroscopy, UV–visible diffuse reflectance spectroscopy, and high-resolution transmission electron microscopy. The results indicated that the loaded hierarchical microspheres exhibited a uniform distribution, and some aggregation was observed. These well-dispersed hierarchical microspheres were composed of 2D nanosheets, which possess heterojunction structures. Based on the photodegradation tests examining the removal of rhodamine B from water under visible light irradiation (λ > 420 nm), the photocatalytic activity of BiOB/BiOI/FACs was superior to that of BiOBr/FACs and BiOI/FACs. A proposed mechanism for the enhanced photocatalytic activity displayed by BiOB/BiOI/FACs is discussed.

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A Review on R&D Status and Application of Fly Ash Cenospheres in Microwave Absorption

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.634-638.1886 ◽

2013 ◽

Vol 634-638 ◽

pp. 1886-1889 ◽

Cited By ~ 1

Author(s):

Jing Zhang ◽

Jiang Long Yu ◽

Ping Yang Wang ◽

Huan Zhao

Keyword(s):

Surface Modification ◽

Electromagnetic Wave ◽

Fly Ash ◽

Research And Development ◽

Microwave Absorption ◽

State Of The Art ◽

Electromagnetic Wave Absorption ◽

Wave Absorption ◽

Art Research ◽

Fly Ash Cenospheres

The paper provides an overview of surface modification and application of fly ash cenospheres. The state of the art research and development of electromagnetic wave absorption materials based on surface treated fly ash cenospheres are summarized.

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Ag-TON nanospheres coupled with fly ash cenospheres for wastewater treatment under visible light irradiation

Water Science & Technology ◽

10.2166/wst.2018.513 ◽

2018 ◽

Vol 78 (11) ◽

pp. 2321-2327 ◽

Cited By ~ 1

Author(s):

Yan Ma ◽

Zhihuan Zhao ◽

Jimin Fan ◽

Zhanyong Gu ◽

Bin Zhang ◽

...

Keyword(s):

Fly Ash ◽

Visible Light ◽

Raw Material ◽

X Ray Diffraction ◽

Hydrolysis Method ◽

Composite Photocatalysts ◽

Recycle And Reuse ◽

Doping Ratio ◽

Fly Ash Cenospheres

Abstract Using tetra-n-butyl titanate as raw material and fly ash cenospheres (FAC) as carrier, the photocatalysts of Ag-TON/FAC were successfully prepared by solvothermal and in-situ hydrolysis method. These visible light photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), fluorescence spectroscopy (FL) and UV–vis diffuse reflectance spectra (DRS). In this study, methyl orange and ciprofloxacin were used as wastewater degradation targets to investigate the effect of the amount of titanium dioxide and the amount of Ag doping on the activity of photocatalysts. On the basis of this, the optimal ratio of TiO2 to FAC was 2:1 and the optimum doping ratio of Ag was determined to be 15 wt.%. The composite photocatalysts dispersed uniformly and were easy to recycle and reuse, which were benefits in fully utilizing the solar energy. The degradation efficiency remained at more than 60% after being renewed five times for MO and ciprofloxacin. The photocatalysts of Ag-TON/FAC can reduce the environmental burden caused by FAC also.

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