Synthesis of nano-diamond/alumina composite by detonation method

This study describes the preparation of new surface‐modified nanodiamond (ND) particles containing urethane‐based hybrid materials by photopolymerization of aliphatic urethane acrylate, trimethylolpropane triacrylate, glycidyl methacrylate monomers, and their usage for lead adsorption from aqueous media. ND and synthesized surface‐modified ND were characterized by atom transfer radical addition Fourier transform infrared spectroscopy (ATR‐FTIR) and scanning transmission electron microscopy analysis. Crosslinked adsorbent nanocomposites were then treated with polyethylene imine and all adsorbent nanocomposites were characterized by ATR‐FTIR, scanning electron microscopy, thermogravimetric analysis, and contact angle measurements. The metal ion binding capacity of the surfaces of the nanocomposites containing high amine content was investigated. The effects of the percentage of functional monomer, pH, and contact time on adsorption, and the interaction of foreign metal ions have been tested. Optimum contact time was found to be 7 h at pH 5. The adsorption capacity of the synthesized nanocomposite adsorbent for lead (II) was determined as 17.12 mg g−1. Langmuir and Freundlich isotherms were used to determine the adsorption behaviors and Langmuir isotherm model was found to be the most suitable model (R2: 0.9988). The amount of adsorption of Pb (II) ions of UV curable adsorbent film prepared in river water samples was investigated. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48241.

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“…The two results are compatible with each other. In addition, the synthesized modified ND size distribution is consistent with the literature …”

Section: Resultssupporting

confidence: 90%

Nanodiamond‐containing polyethyleneimine hybrid materials for lead adsorption from aqueous media

Çi̇ği̇l

Urucu

Kahraman

2019

J of Applied Polymer Sci

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“…The lower temperature creates a pre-sintering phase formed by alumina, which weakens the material. Thus, the composition with a higher percentage of alumina obtains the worst sintering and mechanical behavior (Eskandari et al, 2012;Rahimiam et al, 2010;Li et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…The alumina in its α phase is a bioinerte material widely used as reinforcement, especially as a result of its high hardness combined with good flexion resistance, excellent dynamic, impact fatigue, subcritical cracking and compression resistance. In fact, the alumina particles can increase the HAP hardness, demonstrating the role of reinforcement (Bhattacharyya and Behera, 2017;Yan et al, 2017;Askari et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Study of the microstructure and mechanical properties of beta tricalcium phosphate-based composites with alumina addition produced by powder metallurgy

et al. 2017

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The use of alumina as a reinforcement in metallic and ceramic matrix is wellknown. The purpose of this study was to investigate the effect of alumina addition according to its amount on the microstructural and mechanical behavior of tricalcium phosphate ceramic (TCP), more specifically the β-TCP. Although β-TCP has excellent bioactive and biocompatible properties, it presents low fracture resistance and load bearing capacity, which limits its use in the monolithic form. The route used for the β-TCP/alumina composite production was powder metallurgy. The powders were milled in a high energy ball mill with the following parameters: 5, 10, 15 and 20 hours, mass/sphere relation of 1:20 and speed of 150 rpm. After the milling process, the powders of both compositions were uniaxially pressed and sintered. Two of the compositions were processed containing 90% and 50% of β-TCP, respectively. The results indicated that composition 1 with a smaller percentage of alumina in its microstructure presented 62.4 % smaller particle size after the high energy ball milling process, which provided higher densification after pressing and sintering. These results implied in increased mechanical resistance, with 4.6 GPa of elastic modulus and 140 MPa of compressive strength, against 3.6 GPa of elastic modulus and 117 MPa of compressive strength obtained in composition 2.

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“…334 These properties attracted the research community to utilize ND for biomaterial applications. 199,333,[335][336][337][338][339] However, very few studies were found with HA composite coatings sprayed through the thermal spray technique. Li et al 283 cold sprayed the ND/HA composite on a titanium substrate.…”

Section: Biomaterials Science Reviewmentioning

confidence: 99%

Bioactive surface modifications through thermally sprayed hydroxyapatite composite coatings: a review of selective reinforcements

et al. 2022

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Synthesis of nano-diamond/alumina composite by detonation method

Cited by 15 publications

References 17 publications

Nanodiamond‐containing polyethyleneimine hybrid materials for lead adsorption from aqueous media

Nanodiamond‐containing polyethyleneimine hybrid materials for lead adsorption from aqueous media

Study of the microstructure and mechanical properties of beta tricalcium phosphate-based composites with alumina addition produced by powder metallurgy

Bioactive surface modifications through thermally sprayed hydroxyapatite composite coatings: a review of selective reinforcements

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