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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Effect of Citric Acid Surface Modification on Solubility of Hydroxyapatite Nanoparticles
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Effect of Citric Acid Surface Modification on Solubility of Hydroxyapatite Nanoparticles

机译：柠檬酸表面改性对羟基磷灰石纳米粒子溶解度的影响

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Worldwide, there is an amplified interest in nanotechnology-based approaches to develop efficient nitrogen, phosphorus, and potassium fertilizers to address major challenges pertaining to food security. However, there are significant challenges associated with fertilizer manufacture and supply as well as cost in both economic and environmental terms. The main issues relating to nitrogen fertilizer surround the use of fossil fuels in its production and the emission of greenhouse gases resulting from its use in agriculture; phosphorus being a mineral source makes it nonrenewable and casts a shadow on its sustainable use in agriculture. This study focuses on development of an efficient P nutrient system that could overcome the inherent problems arising from current P fertilizers. Attempts are made to synthesize citric acid surface-modified hydroxyapatite nanoparticles using wet chemical precipitation. The resulting nanohybrids were characterized using powder X-ray diffraction to extract the crystallographic data, while functional group analysis was done by Fourier transform infrared spectroscopy. Morphology and partide size were studied using scanning electron microscopy along with elemental analysis using energy dispersive X-ray diffraction spectroscopy. Its effectiveness as a source of P was investigated using water release studies and bioavailability studies using Zea mays as the model crop. Both tests demonstrated the increased availability of P from nanohybrids in the presence of an organic acid compared with pure hydroxyapatite nanoparticles and rock phosphate.
机译：在全球范围内，对基于纳米技术的方法进行了扩增的兴趣，以开发有效的氮，磷和钾肥，以解决与粮食安全有关的重大挑战。然而，与经济和环境术语的肥料制造和供应相关，以及经济环境方面的成本存在重大挑战。与氮肥有关的主要问题环绕着化石燃料在生产中的生产和农业用途产生的温室气体的排放;磷是矿泉源使其不可康复，并在农业可持续使用时施放阴影。本研究侧重于开发有效的P营养系统，可以克服目前P肥料所产生的固有问题。尝试使用湿化学沉淀合成柠檬酸表面改性的羟基磷灰石纳米颗粒。使用粉末X射线衍射表征所得的纳米胺以提取结晶数据，而傅里叶变换红外光谱法完成官能团分析。使用扫描电子显微镜以及使用能量分散X射线衍射光谱分子的元素分析研究了形态和伴侣尺寸。使用水释放研究和使用ZEA的生物利用度研究作为模型作物，研究其作为P源的效力。与纯羟基磷灰石纳米颗粒和岩石磷酸盐相比，这两种测试都证明了在有机酸存在下从纳米组织中的纳米冬次的可用性。

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