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<p>This study demonstrates a novel and sustainable approach for synthesizing high-purity aragonite from coral reef remains collected in Penghu, Taiwan. The accumulation of coral remains has caused environmental concerns such as water pollution, unpleasant odors, and disruption of coastal ecosystems.&#xa0;To address these issues and promote resource recovery, coral reef remains were utilized as a raw material to synthesize aragonite without chemical additives. By precisely controlling the conditions under 70℃, 120&#xa0;min of reaction time, and 450&#xa0;rpm stirring speed, aragonite particles with a 99.1% phase purity, an aspect ratio of 14.21, and whiteness of 93% were successfully synthesized. The resulting aragonite meets industrial standards for applications such as fillers in plastics, papers, and pigments. Compared to conventional methods that require additives like Mg<sup>2+</sup>, this additive-free approach significantly reduces costs and energy consumption. This research presents a cost-effective and environmentally friendly solution and highlights the potential for valorizing marine waste, supporting pollution prevention, and the circular economy.</p> Graphical Abstract <p></p>

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Pollution Prevention-A Novel Approach to Synthesize Aragonite from Coral Reef Remains

  • 期刊论文

  • 发表日期：

    2025年7月29日

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  • Szu-An Chen,
  • Cheng-Han Lee

摘要

This study demonstrates a novel and sustainable approach for synthesizing high-purity aragonite from coral reef remains collected in Penghu, Taiwan. The accumulation of coral remains has caused environmental concerns such as water pollution, unpleasant odors, and disruption of coastal ecosystems. To address these issues and promote resource recovery, coral reef remains were utilized as a raw material to synthesize aragonite without chemical additives. By precisely controlling the conditions under 70℃, 120 min of reaction time, and 450 rpm stirring speed, aragonite particles with a 99.1% phase purity, an aspect ratio of 14.21, and whiteness of 93% were successfully synthesized. The resulting aragonite meets industrial standards for applications such as fillers in plastics, papers, and pigments. Compared to conventional methods that require additives like Mg2+, this additive-free approach significantly reduces costs and energy consumption. This research presents a cost-effective and environmentally friendly solution and highlights the potential for valorizing marine waste, supporting pollution prevention, and the circular economy.

Graphical Abstract