Synthesis and characterization of nano-Plaster of Paris from Babylonia japonica, Oliva sayana, and Conasprella bermudensis

Md. Kawsar , Md. Sahadat Hossain , Sumaiya Akter , Newaz Mohammed Bahadur , Samina Ahmed
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Abstract

In this study, Plaster of Paris (POP, CaSO4.0.5H2O) was successfully synthesized from the shells of marine mollusks, specifically Conasprella bermudensis, Babylonia japonica, and Oliva sayana, highlighting the potential of utilizing marine resources for material production. The synthesis process was accelerated through a chemical reaction between the mollusk shells and sulfuric acid, which provided calcium and sulfate ions, respectively. Various model equations were employed to assess the crystallite size, which was less than 200 nm; notably, all models except the Halder-Wagner technique yielded significant estimations for the synthesized products. The calculated energy density ranged from 1.32×10² to 2.38×10³ J/m³, with stress values between 5.02×10⁵ and 2×10⁶ and strain values from 5×10⁻⁴ to 1.7×10⁻³. The preferred growth calculation indicated that the (200), (400), and (020) planes are the most thermodynamically stable for the synthesized POP. Additionally, FTIR analysis confirmed the presence of sulfate and hydroxyl functional groups in the products. This research advances the understanding of nano-Plaster of Paris (POP) derived from marine sources, promotes sustainable practices in material synthesis, and explores new applications in construction and biomedical fields.
以紫菜、野橄榄和红豆为原料制备纳米巴黎石膏及其表征
本研究成功地利用海洋软体动物Conasprella berberensis、Babylonia japonica和Oliva sayana的贝壳合成了Plaster of Paris (POP, CaSO4.0.5H2O),突出了利用海洋资源生产材料的潜力。通过软体动物壳与硫酸的化学反应加速了合成过程,硫酸分别提供钙离子和硫酸盐离子。采用多种模型方程对微晶尺寸进行了评估,微晶尺寸小于200 nm;值得注意的是,除了Halder-Wagner技术外,所有模型都对合成产物产生了显著的估计。计算出的能量密度范围从1.32×10²到2.38×10³J/m³,应力值在5.02×10和2×10⁶之间,应变值在5×10⁻到1.7×10⁻。优选生长计算表明(200)、(400)和(020)平面是合成的POP最稳定的热力学面。此外,FTIR分析证实产物中存在硫酸盐和羟基官能团。这项研究促进了对海洋来源的纳米巴黎石膏(POP)的理解,促进了材料合成的可持续实践,并探索了在建筑和生物医学领域的新应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
2.60
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