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Facile synthesis and characterization of hydroxyapatite from fish bones: Photocatalytic degradation of industrial dyes (crystal violet and Congo red)
Progress in Organic Coatings ( IF 6.6 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.porgcoat.2020.105890
Selvam Sathiyavimal , Seerangaraj Vasantharaj , Muthiah Shanmugavel , Elayaperumal Manikandan , Phuong Nguyen-Tri , Kathirvel Brindhadevi , Arivalagan Pugazhendhi

Abstract The major component of bone minerals is the nanosized hydroxyapatite (HAp). It is known to possess extreme and exceptional properties. HAp increases its application in biomedical purposes. The utilization of HAp is comparatively similar to the use of living bones due to the monolithic structures, bioactivity and biocompatibility. Based on the potential characteristics of HAp, the present research has aimed to synthesize HAp from the natural biowaste of fish bones as a source of calcium phosphate in the form of HAp. The synthesized fish bone hydroxyapatite (FB-HAp) was characterized using X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FT-IR), Field emission - scanning microscopy (FESEM), Transmission electron microscopy (TEM) and Thermo gravimetric analysis (TGA). To reveal the environmental application of FB-HAp, photocatalytic degradations of Crystal violet (CV) and Congo red (CR) were performed under direct sunlight irradiation. FB-HAp showed 77 % degradation of CV and 87 % of CR within 75 min of exposure. Therefore, the collective findings suggested that the HAp prepared using the biowastes of Catla fish bones would be a safer, non-toxic and potential candidate for the photodegradation of synthetic dyes used in textile industries.

中文翻译:

鱼骨中羟基磷灰石的简便合成与表征:工业染料(结晶紫和刚果红)的光催化降解

摘要 骨矿物质的主要成分是纳米羟基磷灰石(HAp)。众所周知,它具有极端和特殊的特性。HAp 增加了其在生物医学目的中的应用。由于整体结构、生物活性和生物相容性,HAp 的利用与活骨的利用比较相似。基于HAp的潜在特性,本研究旨在从鱼骨的天然生物废物中合成HAp,作为HAp形式的磷酸钙的来源。合成的鱼骨羟基磷灰石 (FB-HAp) 使用 X 射线衍射 (XRD)、傅里叶变换红外光谱 (FT-IR)、场发射扫描显微镜 (FESEM)、透射电子显微镜 (TEM) 和热重分析进行表征(TGA)。为了揭示FB-HAp的环境应用,在阳光直射下进行结晶紫 (CV) 和刚果红 (CR) 的光催化降解。FB-HAp 在暴露 75 分钟内显示出 77% 的 CV 降解和 87% 的 CR。因此,集体研究结果表明,使用 Catla 鱼骨生物废物制备的 HAp 将是一种更安全、无毒且有潜力用于光降解纺织工业中使用的合成染料的候选者。
更新日期:2020-11-01
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