Characterization of Ceramic Membrane based on Calcium Carbonate from Onyx Stone and Its Application for Coconut Sap Treatment

Aripin, H.; Priatna, Edvin; Dedi, Dedi; Sudiana, I Nyoman; Sabchevski, S.

doi:10.5829/ije.2022.35.02b.05

Cited by 4 publications

(2 citation statements)

References 26 publications

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“…Others, it can be used to produce large quantities of Hydroxyapatite (HA), which is the result of CaCO3 synthesis (15). Meanwhile, commercially available CaCO3 is expensive (18) .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Hydroxyapatite Bioceramic from Cuttlefish Shell Waste and Coral Using Microwave Hydrothermal

Nurbaiti,

Herliansyah,

Tontowi

et al. 2024

IJE

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Indonesia is an archipelagic country with two continents and an ocean, where it produces abundant marine products and the second largest marine source in the world, such as cuttlefish. Besides, it was for food, cuttlefish also produced shells as waste. Actually, this waste has been used for animal feed but in small scale. Others are still waste and cause pollution if not handled properly. Cuttlefish shell waste (CSW) is the basic ingredient for making hydroxyapatite (HA), while it was the main bone compound. Meanwhile, HA demand in the market is very high due to bone defects. The novelty of the research was to fulfil the increasing need for HA at low price and prevent air, water, and soil pollution by using circular economic principles (reused), and it has economic value. Synthesis HA was used microwave hydrothermal method. The CSW and coral were obtained from the pet market in Yogyakarta. They were crushed and calcined to the temperature of 900 o C to obtain calcium oxide (CaO). Then, CaO was synthesized by microwave hydrothermal to obtain HA powder. Synthetic HA was characterized by the Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive X-ray (EDX), and thermogravimetric analysis (TGA). The Ca/P ratio of HA CSW and coral are 1.7 and 1.87, respectively. Moreover, coral HA has higher crystallinity than CSW (48%). The TGA shows that the highest weight loss occurred in HA CSW (16.57%). The conclusion is that both CSW and coral are raw materials used to produce HA.

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“…Others, it can be used to produce large quantities of Hydroxyapatite (HA), which is the result of CaCO3 synthesis (15). Meanwhile, commercially available CaCO3 is expensive (18) .…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Hydroxyapatite Bioceramic from Cuttlefish Shell Waste and Coral Using Microwave Hydrothermal

Nurbaiti,

Herliansyah,

Tontowi

et al. 2024

IJE

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“…As is known, the most widespread method of producing functional ceramics is solidphase synthesis using oxides, which includes co-milling of the initial reagents, pressing, and sintering [17,18]. However, other reagents, such as carbonates, are often used in ceramic technology to control shrinkage and pore formation [19][20][21]. To unambiguously evaluate the suitability of ceramics for inert matrices, high-cost experiments with the irradiation of heavy ions in ion beam accelerators can be performed [22].…”

Section: Introductionmentioning

confidence: 99%

Structural, Dielectric, and Mechanical Properties of High-Content Cubic Zirconia Ceramics Obtained via Solid-State Synthesis

Giniyatova,

Kozlovskiy,

Shakirzyanov

et al. 2023

Applied Sciences

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In this work, the structural, electrical, and mechanical properties and phase composition of high-content cubic zirconium oxide ceramics stabilized with Ca were investigated. The novelty of this work lies in evaluating the potential use of porous ceramics obtained using calcium carbonate as a matrix for dispersed nuclear fuel. Experimental samples were prepared using solid-phase synthesis through sintering in air at 1500 °C. The X-ray diffraction method and Raman spectroscopy showed that the fraction of the cubic zirconium oxide ZrO2-c phase gradually increased as the mass concentration changed from Cw = 0.00 to Cw = 0.15, and the CaZrO3 phase was present at concentrations of Cw = 0.20 and Cw = 0.25. When the phase composition was altered, significant changes occurred in the internal microstructure of the ceramics due to the processes of grain sintering and pore formation. Quantitative XRD analysis demonstrated the incorporation of Ca into the cubic structure of the ZrO2-c polymorph. Dielectric spectroscopy at low frequencies revealed that the synthesized ceramics had a dielectric constant of 16.8–22 with a low dielectric loss of ~ 0.005. The microhardness value at a load of 200 kgf (HV0.2) of the obtained samples varied between 5 and 12 GPa and depended on the internal microstructure and phase composition. The obtained results clearly indicate that the mechanical and electrical properties and phase composition of synthesized ceramics make them suitable as a matrix for dispersed nuclear fuels.

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Fabrication of an electrochemical sensor based on a nanocomposite of CoO@f-CNTs for determination of tramadol narcotic drug in urine of athlete volunteers

Li¹

2022

International Journal of Electrochemical Science

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Characterization of Ceramic Membrane based on Calcium Carbonate from Onyx Stone and Its Application for Coconut Sap Treatment

Cited by 4 publications

References 26 publications

Synthesis of Hydroxyapatite Bioceramic from Cuttlefish Shell Waste and Coral Using Microwave Hydrothermal

Synthesis of Hydroxyapatite Bioceramic from Cuttlefish Shell Waste and Coral Using Microwave Hydrothermal

Structural, Dielectric, and Mechanical Properties of High-Content Cubic Zirconia Ceramics Obtained via Solid-State Synthesis

Fabrication of an electrochemical sensor based on a nanocomposite of CoO@f-CNTs for determination of tramadol narcotic drug in urine of athlete volunteers

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