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Recycling of the scrap LCD panels by converting into the InBO3 nanostructure product

  • Mohammad AssefiEmail author
  • Samane Maroufi
  • Veena Sahajwalla
Research Article
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Abstract

Preparation of the value-added products from e-waste resources is an important step in the recycling process. The present paper aims to propose a methodology for the recovery of In from scrap LCD panel via preparation of InBO3 nanostructure. Discarded LCD panel was subjected to a recycling process through crushing, milling, and oxalic acid leaching to prepare In2(C2O4)3·6H2O. Through the leaching process, B(OH)3 from glass part (alumina borosilicate) has been leached out along with indium oxalate hydrated. Further thermal treatment on these extracted materials at 600 °C could result in the formation of InBO3 nanostructures with an average particle size of 20 nm. A multistep mechanism based on thermodynamic calculations for the recycling of the InBO3 form extracted precursors was proposed.

Graphical abstract

Keywords

LCD panel recycling Indium recovery Indium borate 
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Notes

Acknowledgments

We thankfully acknowledge the technical support by Mark Wainwright Analytical Centre (MWAC), Electron Microscopy Unit (EMU), Solid State & Elemental Analysis Unit (SSEAU) and especially Mr. Sean Lim, Ms. Dorothy Yu, Dr. Saroj Bhattacharyya, Dr. Qiang Zhu, and Dr. Yin Yao at the University of New South Wales, Australia.

Funding information

The financial support for this research was provided by the Australian Research Council through Laureate Fellowship FL140100215.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Mohammad Assefi
    • 1
    Email author
  • Samane Maroufi
    • 1
  • Veena Sahajwalla
    • 1
  1. 1.Centre for Sustainable Materials Research and Technology (SMaRT), School of Materials Science and EngineeringUniversity of New South WalesSydneyAustralia

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