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Light trapping effect in the recovery process of laser-induced reduced aggregated precious metal nanoparticles

Research Project

Project/Area Number 21K04743
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 26060:Metals production and resources production-related
Research InstitutionJapan Atomic Energy Agency (2022-2023)
National Institutes for Quantum Science and Technology (2021)

Principal Investigator

Ohba Hironori  国立研究開発法人日本原子力研究開発機構, 福島研究開発部門 福島研究開発拠点 廃炉環境国際共同研究センター, 副ディビジョン長 (60354817)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsレーザー光還元 / レーザー誘起絶縁破壊分光 / 貴金属ナノ粒子 / 黄金属ナノ粒子 / 光捕捉効果 / 貴金属回収 / 光還元 / 光捕捉
Outline of Research at the Start

貴金属リサイクルにおいてレーザー誘起還元凝集を利用した新しい金属回収技術の開発が進められているが、バッチ式処理回収による原理実証から連続処理回収に展開するにあたり還元凝集の偏在や微粒子付着等の課題解決が必要である。
本研究計画では、還元凝集プロセスで生成する貴金属ナノ粒子を効率的に回収する手法を提案するため、バルク液相中において光捕捉操作による非接触での微粒子の位置制御・局在化実現可能性について検証する。これらの知見により、連続的な廃液からの貴金属回収システム概念設計の元となる基礎データが取得できるだけでなく、バルク液相中光捕捉によるナノ粒子空間制御等の学理への展開が期待できる。

Outline of Final Research Achievements

In this study, in order to propose a method for efficiently recovering precious metal nanoparticles generated in the reduction-aggregation process, we considered the development of a flow system, evaluated the detection limit of Au and Pt by applying laser-induced breakdown spectroscopy (LIBS) to in-situ residual concentration analysis, and fabricated and confirmed the operation of a non-contact optical capture and manipulation system for fine particles. In particular, we performed LIBS measurements for in-situ analysis of the dissolved elemental concentration of precious metals, and found that a Nd:YAG pulsed laser wavelength of 532 nm was most suitable for measurement of both Au and Pt. As a result, it was found that the analytical quantification limit for these elements was 10 ppm or less, and we obtained a patent for the recovery method and device.

Academic Significance and Societal Importance of the Research Achievements

貴金属リサイクルにおいてレーザー誘起還元凝集を利用した新しい金属回収技術の開発が進められている。本技術は、パルスレーザー光による光還元凝集を利用しているが、最も大きな特長はレーザー光を集光することなく短時間で凝集が可能であり、平行光を拡大することで、より大きな反応領域を確保して微粒子を分散できることにある。このバルク液中で微粒子を光捕捉操作により空間制御できれば、レーザーその場分析技術と組み合わせて大量のフロー式貴金属回収系の構築につながると考える。また空間を利用してレーザー誘起ボトムアップ型3次元ナノ構造体の創製も可能であり、新たな基礎的研究領域の開拓だけでなく産業応用への展開が期待できる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (19 results)

All 2024 2023 2022 2021

All Journal Article (11 results) (of which Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Development of a radiation tolerant laser-induced breakdown spectroscopy system using a single crystal micro-chip laser for remote elemental analysis2024

    • Author(s)
      Tamura Koji、Nakanishi Ryuzo、Ohba Hironori、Karino Takahiro、Shibata Takuya、Taira Takunori、Wakaida Ikuo
    • Journal Title

      Journal of Nuclear Science and Technology

      Volume: 61 Issue: 8 Pages: 1-8

    • DOI

      10.1080/00223131.2023.2298485

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simultaneous analysis of gadolinium and surface imaging using a fiber-coupled acoustic wave-assisted microchip LIBS system2024

    • Author(s)
      Batsaikhan Munkhbat、Ohba Hironori、Karino Takahiro、Akaoka Katsuaki、Wakaida Ikuo
    • Journal Title

      Journal of Analytical Atomic Spectrometry

      Volume: 39 Issue: 2 Pages: 423-432

    • DOI

      10.1039/d3ja00347g

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Laser air plasma expansion by microwaves2023

    • Author(s)
      Ikeda Yuji、Soriano Joey Kim、Ohba Hironori、Wakaida Ikuo
    • Journal Title

      Applied Optics

      Volume: 62 Issue: 31 Pages: 8434-8434

    • DOI

      10.1364/ao.503682

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Two-dimensional elemental mapping of simulated fuel debris using laser-induced breakdown spectroscopy2023

    • Author(s)
      Batsaikhan Munkhbat、Akaoka Katsuaki、Saeki Morihisa、Karino Takahiro、Ohba Hironori、Wakaida Ikuo
    • Journal Title

      Journal of Nuclear Science and Technology

      Volume: 61 Issue: 5 Pages: 658-670

    • DOI

      10.1080/00223131.2023.2255186

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Laser ablation plasma expansion using microwaves2023

    • Author(s)
      Ikeda Yuji、Soriano Joey Kim、Ohba Hironori、Wakaida Ikuo
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 13901-13901

    • DOI

      10.1038/s41598-023-41208-z

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Analysis of gadolinium oxide using microwave-enhanced fiber-coupled micro-laser-induced breakdown spectroscopy2023

    • Author(s)
      Ikeda Yuji、Soriano Joey Kim、Ohba Hironori、Wakaida Ikuo
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 4818-4828

    • DOI

      10.1038/s41598-023-32146-x

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reaction pathways for palladium(I) reduction in laser-induced particle formation of Pd: An ab initio molecular orbital study2023

    • Author(s)
      Kurosaki Yuzuru、Nakanishi Ryuzo、Saeki Morihisa、Ohba Hironori
    • Journal Title

      Chemical Physics

      Volume: 569 Pages: 111857-111857

    • DOI

      10.1016/j.chemphys.2023.111857

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Remote Laser Analysis Technique for Decommissioning of Nuclear Power Station2022

    • Author(s)
      OHBA Hironori、WAKAIDA Ikuo、TAIRA Takunori
    • Journal Title

      The Journal of The Institute of Electrical Engineers of Japan

      Volume: 142 Issue: 2 Pages: 77-80

    • DOI

      10.1541/ieejjournal.142.77

    • NAID

      130008149746

    • ISSN
      1340-5551, 1881-4190
    • Year and Date
      2022-02-01
    • Related Report
      2021 Research-status Report
  • [Journal Article] Development of an End-effector for Coupled Tendon-driven Manipulator for On-site Elemental Analysis in Decommissioning Work2022

    • Author(s)
      SHIZUME Yuki、TAKATA Atsushi、NABAE Hiroyuki、SUZUMORI Koichi、OHBA Hironori、AKAOKA Katsuaki、WAKAIDA Ikuo、KIKURA Hiroshige、TAKAHASHI Hideharu、ENDO Gen
    • Journal Title

      The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec)

      Volume: 2022 Issue: 0 Pages: 2P2-S01

    • DOI

      10.1299/jsmermd.2022.2P2-S01

    • ISSN
      2424-3124
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Recovery of the laser-induced breakdown spectroscopy system using a ceramic microchip deteriorated by radiation for the remote elemental analysis2022

    • Author(s)
      Tamura Koji、Nakanishi Ryuzo、Ohba Hironori、Taira Takunori、Wakaida Ikuo
    • Journal Title

      Journal of Nuclear Science and Technology

      Volume: 60 Issue: 2 Pages: 175-184

    • DOI

      10.1080/00223131.2022.2091056

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dispersive XAFS Study on the Laser-Induced Reduction of a Rh3+ Ion Complex: Presence of a Rh+ Intermediate in Direct Photoreduction2022

    • Author(s)
      Saeki Morihisa、Matsumura Daiju、Nakanishi Ryuzo、Yomogida Takumi、Tsuji Takuya、Saitoh Hiroyuki、Ohba Hironori
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 126 Issue: 12 Pages: 5607-5616

    • DOI

      10.1021/acs.jpcc.1c10160

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] Fiber-coupled LIBS analysis using a microchip laser in a harsh environment2023

    • Author(s)
      Hironori Ohba
    • Organizer
      Colloquium Spectroscopicum Internationale (CSI) XLIII, The 5th Asian Symposium on Laser Induced Breakdown Spectroscopy (ASLIBS)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 福島廃炉加速に向けたマイクロチップレーザーによる過酷環境LIBS2023

    • Author(s)
      大場弘則
    • Organizer
      第8 回レーザー学会「小型集積レーザー」専門委員会及び第8 回科学技術交流財団「ジャイアント・マイクロフォトニクス」研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Analysis of Simulated Fuel Debris by Fiber-Optic Probe LIBS2022

    • Author(s)
      Hironori Ohba, Katsuaki Akaoka, Ikuo Wakaida
    • Organizer
      Symposium on Applications of Advanced Measurement Technologies 2022
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Sensitive Detection of Alkali and Precious Metals in Aqueous Solutions Using LIBS with Liquid Sheet Jets2022

    • Author(s)
      Ryuzo Nakanishi, Morihisa Saeki1, and Hironori Ohba
    • Organizer
      Symposium on Applications of Advanced Measurement Technologies 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Laser-produced plasmas on metal Fe, Cu, and Zr in air, nitrogen, and argon at atmospheric pressure2022

    • Author(s)
      Munkhbat Batsaikhan, Hironori Ohba
    • Organizer
      Symposium on Applications of Advanced Measurement Technologies 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Comparison of Radiation Effects for a Ceramics and a Single Crystal Microchip of a Laser-Induced Breakdown Spectroscopy (LIBS) System for Remote Analysis2022

    • Author(s)
      Koji Tamura, Ryuzo Nakanishi, Hironori Ohba, and Ikuo Wakaida
    • Organizer
      Symposium on Applications of Advanced Measurement Technologies 2022
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 金属回収装置、金属回収方法、元素分析装置、及び元素分析方法2022

    • Inventor(s)
      大場弘則、中西隆造、佐伯盛久
    • Industrial Property Rights Holder
      大場弘則、中西隆造、佐伯盛久
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-188449
    • Filing Date
      2022
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 回収装置、回収システム、及び回収方法2021

    • Inventor(s)
      大場 弘則、佐伯 盛久、田口 富嗣、中西 隆造
    • Industrial Property Rights Holder
      大場 弘則、佐伯 盛久、田口 富嗣、中西 隆造
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Acquisition Date
      2023
    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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