• Fabrication of CdSe quantum dots/permutite luminescent materials

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      https://www.ias.ac.in/article/fulltext/boms/038/05/1443-1447

    • Keywords

       

      Nanocrystalline materials; composite materials; luminescence; permutite.

    • Abstract

       

      Permutite incorporating CdSe in mesopores has been prepared with a simple route. Firstly, mercaptosuccinic acid-capped CdSe quantum dots (QDs) were prepared in aqueous solution by using SeO2 as selenium source and NaBH4 as reductant. Secondly, the commercial permutite was treated with acetic acid to induce a partial dealumnization, which can introduce a large number of intracrystal mesopores, and the CdSe QDs were successfully incorporated in the mesopores with the wet impregnation method. Photoluminescence spectra, X-ray diffraction and scanning electron microscopy were used for the characterization of samples. The spectra analyses results showed that the illuminant colour of QDs/permutite powder was similar to the corresponding QDs colloid. X-ray diffraction measurements indicated that the (1 0 1) diffraction peak at 2𝜃 = 27° for QDs/permutite powder was the same as the raw permutite, and the energy-dispersive X-ray spectra demonstrated that Cd and Se elements existed in the CdSe QDs/permutite powder.

    • Author Affiliations

       

      Meihua Yu1 Yilin Wang1 2

      1. Ministry-Province Jointly-Constructed Cultivation Base for State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials, Guangxi Zhuang Autonomous Region, Guangxi University, Nanning 530004, China
      2. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China
    • Dates

       
  • Bulletin of Materials Science | News

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