Hybridization of nitrogen compounds and hydroxyapatite: a slowly released fertiliser for water sustainability

Wibisono, Yusuf; Yuliani, R.; Kamilia, N.; Ardian, D.; Lastriyanto, Anang; Rafianto, Vibi; Diniardi, Eka Mustika; Sandra,

doi:10.1088/1755-1315/475/1/012005

Cited by 7 publications

(4 citation statements)

References 12 publications

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“…Following the Korsmeyer–Peppas model, the release process is through diffusion and erosion. In contrast, the zero-order model indicates a constant release rate over time …”

Section: Mathematical Models For Nutrient Releasementioning

confidence: 99%

“…In contrast, the zero-order model indicates a constant release rate over time. 22 A mathematical model has been developed to describe the controlled-release mode of urea from the coated fertilizer (rosin-coated urea, Figure 2) based on the experimental results. The mechanism of the release was determined based on the observation of the release from a pellet.…”

Section: Releasementioning

confidence: 99%

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Release Kinetic Models and Release Mechanisms of Controlled-Release and Slow-Release Fertilizers

Lakshani,

Wijerathne,

Sandaruwan

et al. 2023

ACS Agric. Sci. Technol.

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The theory of slow release and controlled release has the versatility of applications in pharmaceuticals, fertilizers, and agrochemicals. In controlled-release and slow-release administration, inorganic and organic materials and polymers that are both degradable and nondegradable have numerous uses. Research on release kinetics reveals how material systems work. Release kinetics can be determined using statistical methods, model-based methods (curve fitting techniques), and model-independent techniques. Curve-fitting techniques have been applied to describe drug-releasing behaviors in pharmaceuticals. This review describes curvefitting methods used by researchers to analyze the nutrient release profile using different models, such as zero-order, first-order, Higuchi, Korsmeyer−Peppas, Hixson−Crowell root law, Ritger−Peppas, Peppas−Sahlin, and Weibull models. These drug-release models have successfully explained the release behavior of controlled-release and slow-release fertilizers and agrochemicals. Fertilizer type, rate of application, application time frame, and application location are all crucial factors in nutrient management. The known transport and release mechanisms support increasing profitability and adhere to nutrient best management practices. Hence, in this study, we will review existing controlled-and slow-release fertilizer systems in detail that are explained using the aforementioned modeling approaches (empirical and mechanistic) to discuss recent developments and applications of controlled-and slow-release fertilizer systems.

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“…Following the Korsmeyer–Peppas model, the release process is through diffusion and erosion. In contrast, the zero-order model indicates a constant release rate over time …”

Section: Mathematical Models For Nutrient Releasementioning

confidence: 99%

Section: Releasementioning

confidence: 99%

Release Kinetic Models and Release Mechanisms of Controlled-Release and Slow-Release Fertilizers

Lakshani,

Wijerathne,

Sandaruwan

et al. 2023

ACS Agric. Sci. Technol.

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“…Hydroxyapatite [Ca10(PO4)6(OH)2] is a form of calcium phosphate that has been widely used as an implant material and has a composition similar to natural hard tissues such as bones and teeth. It has outstanding biocompatibility, osteoconductivity, and osteoinductivity [16,17]. In addition, many studies have shown that HA ceramics have no toxicity and inflammatory effect [18,19].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of calcium phosphate (tricalcium phosphate/calcium pyrophosphate) from snail shells (Achatina fulica)

Ardiansyah¹,

Saraswaty²,

Risdian³

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Snail (Achatina fulica) is one of the sources of duck fodder commonly used by local breeders to meet protein needs of poultry farms. However, its shells as a by-product are rarely used and just become waste. To overcome this problem, we try to utilize the waste to be used as a source of bioceramic. Snail shells contain a lot of calcium which can be used as a calcium precursor to make bioceramics. One of the bioceramics that has the potential are tricalcium phosphate (TCP) and calcium pyrophosphate (CPP). They are mostly used as material for bone regeneration. It has advantages in terms of biocompatibility and osteoinductivity. In this study, we synthesized and characterized calcium phosphate from snails by coprecipitation method. It was then analyzed using X-Ray fluorescence (XRF), X-Ray diffraction (XRD), fourier transform infrared (FTIR), energy dispersive X-Ray (EDX), and scanning electron microscope (SEM) analysis to see its characteristic. Based on XRF analysis, snail shell (raw material) contains 81.83% of calcium and calcium phosphate mixed bioceramics (TCP and CPP). Average crystal size is 17.00 nm. The surface shape of the formed particles was irregular, and also flux, sphere, and fracture shaped. Nevertheless, interfering compounds were still found, hence a further purification process needs to be conducted.

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“…Hydroxyapatite is a form of calcium phosphate [Ca 10 (PO 4 ) 6 (OH) 2 ] that has been extensively utilized as an implant material and has a composition similar to natural hard tissues such as bone and teeth. It has exceptional biocompatibility, osteoconductivity, and osteoinductivity [7,8]. In addition, many studies have shown that HAp ceramics possess no toxicity and no inflammatory effect [9,10].…”

Section: Introductionmentioning

confidence: 99%

Marine-Derived Biowaste Conversion into Bioceramic Membrane Materials: Contrasting of Hydroxyapatite Synthesis Methods

et al. 2021

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Marine-derived biowaste increment is enormous, yet could be converted into valuable biomaterial, e.g., hydroxyapatite-based bioceramic. Bioceramic material possesses superiority in terms of thermal, chemical, and mechanical properties. Bioceramic material also has a high level of biocompatibility when projected into biological tissues. Tuning the porosity of bioceramic material could also provide benefits for bioseparation application, i.e., ultrafiltration ceramic membrane filtration for food and dairy separation processes. This work presents the investigation of hydroxyapatite conversion from crab-shells marine-based biowaste, by comparing three different methods, i.e., microwave, coprecipitation, and sol–gel. The dried crab-shells were milled and calcinated as calcium precursor, then synthesized into hydroxyapatite with the addition of phosphates precursors via microwave, coprecipitation, or sol–gel. The compound and elemental analysis, degree of crystallinity, and particle shape were compared. The chemical compounds and elements from three different methods were similar, yet the degree of crystallinity was different. Higher Ca/P ratio offer benefit in producing a bioceramic ultrafiltration membrane, due to low sintering temperature. The hydroxyapatite from coprecipitation and sol–gel methods showed a significant degree of crystallinity compared with that of the microwave route. However, due to the presence of Fe and Sr impurities, the secondary phase of Ca9FeH(PO4)7 was found in the sol–gel method. The secondary phase compound has high absorbance capacity, an advantage for bioceramic ultrafiltration membranes. Furthermore, the sol–gel method could produce a snake-like shape, compared to the oval shape of the coprecipitation route, another benefit to fabricate porous bioceramic for a membrane filter.

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Hybridization of nitrogen compounds and hydroxyapatite: a slowly released fertiliser for water sustainability

Cited by 7 publications

References 12 publications

Release Kinetic Models and Release Mechanisms of Controlled-Release and Slow-Release Fertilizers

Release Kinetic Models and Release Mechanisms of Controlled-Release and Slow-Release Fertilizers

Synthesis and characterization of calcium phosphate (tricalcium phosphate/calcium pyrophosphate) from snail shells (Achatina fulica)

Marine-Derived Biowaste Conversion into Bioceramic Membrane Materials: Contrasting of Hydroxyapatite Synthesis Methods

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