Preparation and characterization of ZnO/ZnS core/shell nanocomposites through a simple chemical method

The use of mixed-matrix materials (MMM) has become a major topic of research in recent years, due to unique properties achieved in these composites. In this work, biochar from sunflower seed hull pyrolysis and biochar/polysulfone (PSF) MMMs were produced and characterized. The optimal pyrolysis temperature for biochar production was determined to be 500 C. The resulting biochar properties were an iodine number of 203 mg/g and a pore volume of 0.595 mL/g. In MMM fabrication, the use 4% ethanol as nonsolvent in the wet phase inversion process increased the glass transition temperature by 8 C, indicating improved biochar/PSF interaction. The presence of biochar was shown to create pores in otherwise dense surfaces. The critical surface energy was also increased by the addition of biochar from 28.6 mN/m in pristine PSF to 35.7 mN/m in biochar/PSF MMMs. We identified and discussed several potential applications based on the determined properties.

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Biochar as a filler in mixed matrix materials: Synthesis, characterization, and applications

Lewis

Miller

Crumb

et al. 2019

J of Applied Polymer Sci

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Development of Aluminum-Based Composite Material by using Bagasse Ash and Eggshell as Reinforcement Along with Nano-CuO Particles

Dwivedi

Sahu

2022

J. Inst. Eng. India Ser. D

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Physical, mechanical and thermal behavior of recycled agro waste GSA reinforced green composites

Verma¹,

Pal²,

Dwivedi³

et al. 2019

Materials Testing

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In the traditional development of aluminum based composite materials ceramic particles such as SiC, Al2O3 and B4C etc. are customarily used as a reinforcement material for the aluminum matrix. Further, industries producing these ceramic particles emit huge amount of greenhouse gases which in turn cause a great amount of environment pollution. Moreover, the production of these ceramic particles is costly. Agro waste groundnut shell ash (GSA) is an agricultural waste product that produces soil and air pollution. In addition, its disposal is costly. In this study, an attempt was made to utilize agro waste GSA as a partial replacement for ceramic particles in the development of AA2024 aluminum based composite. Microstructure results showed a uniform distribution of GSA particles in the aluminum base metal matrix alloy. Maximum tensile strength and hardness were found to be 198 MPa and 64 BHN for 3.75 wt.-% reinforcement of GSA particles in the AA2024 aluminum base matrix material. Porosity and thermal expansion were found to be 12.96 % and 125 mm3, respectively for the AA2024/3.75 wt.-% GSA composite. Density, corrosion loss and the cost of the GSA reinforced composite continuously decreased by increasing the percentage of reinforcement. Specific strength and corrosion loss of the AA2024/3.75 wt.-% GSA green metal matrix composite were also found satisfactory.

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Preparation and characterization of ZnO/ZnS core/shell nanocomposites through a simple chemical method

Cited by 4 publications

References 39 publications

Biochar as a filler in mixed matrix materials: Synthesis, characterization, and applications

Biochar as a filler in mixed matrix materials: Synthesis, characterization, and applications

Development of Aluminum-Based Composite Material by using Bagasse Ash and Eggshell as Reinforcement Along with Nano-CuO Particles

Physical, mechanical and thermal behavior of recycled agro waste GSA reinforced green composites

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