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<p>This study investigates the recycling of alumina from spent petrochemical catalysts to promote resource circularity and support sustainable applications. High-purity α-phase alumina was successfully produced through optimized screening, calcination, and milling processes. The recycled alumina was then used to synthesize YAG: Ce phosphors for LED packaging. The resulting LED packages achieved a luminous flux of 224&#xa0;lm at 500&#xa0;mA, demonstrating the potential of alumina recycling to link resource recovery with the advancement of high-performance optoelectronic technologies.</p>

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Sustainable resource utilization: repurposing alumina from petrochemical catalysts for LED phosphors

  • 期刊论文

  • 发表日期：

    2026年1月14日

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  • Seok Bin Kwon,
  • Seon Yeong Lee,
  • Jae Hyeok Lee,
  • Sie-Wook Jeon,
  • Min-hyung Lee,
  • Ho-se Lee,
  • Yong Tack Kim,
  • Seung Hee Choi,
  • Bong Kyun Kang,
  • Young Hyun Song

摘要

This study investigates the recycling of alumina from spent petrochemical catalysts to promote resource circularity and support sustainable applications. High-purity α-phase alumina was successfully produced through optimized screening, calcination, and milling processes. The recycled alumina was then used to synthesize YAG: Ce phosphors for LED packaging. The resulting LED packages achieved a luminous flux of 224 lm at 500 mA, demonstrating the potential of alumina recycling to link resource recovery with the advancement of high-performance optoelectronic technologies.