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将生物废弃物亚洲硬壳蛤（Meretrix lusoria）贝壳转化为用于中性白光发光二极管的白色发光磷光体。

Conversion of Biowaste Asian Hard Clam (Meretrix lusoria) Shells into White-Emitting Phosphors for Use in Neutral White LEDs.

作者信息

Chang Tsung-Yuan, Wang Chih-Min, Lin Tai-Yuan, Lin Hsiu-Mei

机构信息

Institute of Optoelectronic Sciences, National Taiwan Ocean University, 2 Pei Ning Road, Keelung 20224, Taiwan.

Department of Bioscience and Biotechnology, National Taiwan Ocean University, 2 Pei Ning Road, Keelung 20224, Taiwan.

出版信息

Materials (Basel). 2016 Dec 2;9(12):979. doi: 10.3390/ma9120979.

DOI:10.3390/ma9120979
PMID:28774101
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5457013/
Abstract

The increasing volume and complexity of waste associated with the modern economy poses a serious risk to ecosystems and human health. However, the remanufacturing and recycling of waste into usable products can lead to substantial resource savings. In the present study, clam shell waste was first transformed into pure and well-crystallized single-phase white light-emitting phosphor Ca₉Gd(PO₄)₇:Eu,Mn materials. The phosphor Ca₉Gd(PO₄)₇:Eu,Mn materials were synthesized by the solid-state reaction method and the carbothermic reduction process, and then characterized and analyzed by means of X-ray diffraction (XRD) and photoluminescence (PL) measurements. The structural and luminescent properties of the phosphors were investigated as well. The PL and quantum efficiency measurements showed that the luminescence properties of clam shell-based phosphors were comparable to that of the chemically derived phosphors. Moreover, white light-emitting diodes were fabricated through the integration of 380 nm chips and single-phase white light-emitting phosphors (CaEuMn)₉Gd(PO₄)₇ into a single package of a white light emitting diode (WLED) emitting a neutral white light of 5298 K with color coordinates of (0.337, 0.344).

摘要

与现代经济相关的废弃物数量不断增加且复杂性日益提高，这对生态系统和人类健康构成了严重风险。然而，将废弃物再制造和回收为可用产品能够大幅节省资源。在本研究中，首先将蛤壳废弃物转化为纯净且结晶良好的单相白色发光荧光粉Ca₉Gd(PO₄)₇:Eu,Mn材料。通过固态反应法和碳热还原工艺合成了荧光粉Ca₉Gd(PO₄)₇:Eu,Mn材料，然后借助X射线衍射（XRD）和光致发光（PL）测量对其进行表征和分析。还研究了荧光粉的结构和发光性能。PL和量子效率测量表明，基于蛤壳的荧光粉的发光性能与化学合成的荧光粉相当。此外，通过将380 nm芯片和单相白色发光荧光粉（CaEuMn）₉Gd(PO₄)₇集成到一个白色发光二极管（WLED）的单个封装中，制造出了发出色温为5298 K、色坐标为(0.337, 0.344)的中性白光的白色发光二极管。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/e8bec03a1071/materials-09-00979-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/7ac40ffa7f03/materials-09-00979-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/ab424a94dbef/materials-09-00979-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/3eff324c9d97/materials-09-00979-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/840fab335189/materials-09-00979-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/ae4e2f45c726/materials-09-00979-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/e8bec03a1071/materials-09-00979-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/7ac40ffa7f03/materials-09-00979-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/ab424a94dbef/materials-09-00979-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/3eff324c9d97/materials-09-00979-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/840fab335189/materials-09-00979-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/ae4e2f45c726/materials-09-00979-g005a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/16d1/5457013/e8bec03a1071/materials-09-00979-g006.jpg

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