2026/09/19 更新

写真a

ズバイル　ユスフ　オラレカン
ズバイル　ユスフ　オラレカン
所属
理工学術院 理工学術院総合研究所
職名
次席研究員（研究院講師）
学位
博士(工学) ( 2023年09月 早稲田大学 )

経歴

  • 2026年04月
    -
    継続中

    早稲田大学

  • 2024年04月
    -
    2026年03月

    早稲田大学

  • 2023年10月
    -
    2024年03月

    早稲田大学

学歴

  • 2020年09月
    -
    2023年09月

    早稲田大学  

  • 2018年09月
    -
    2020年09月

    早稲田大学  

  • 2016年01月
    -
    2017年11月

    University of Benin   M.Eng Industrial Engineering  

  • 2009年01月
    -
    2014年04月

    Federal University of Technology, Minna   B.Eng Chemical Engineering  

所属学協会

  • 2024年06月
    -
    継続中

    資源・素材学会

  • 2021年09月
    -
    継続中

    The Geochemical Society of Japan

  • 2021年01月
    -
    継続中

    The Society of Powder Engineering, Japan

  • 2019年12月
    -
    継続中

    The Society of Chemical Engineers, Japan

  • 2024年08月
    -
    　

    Canadian Institute of Mining, Metallurgy and Petroleum

  • 2021年08月
    -
    　

    European Association of Geochemistry

▼全件表示

研究分野

  • 有機機能材料 / 触媒プロセス、資源化学プロセス / 環境材料、リサイクル技術 / 環境負荷低減技術、保全修復技術

研究キーワード

  • Acid mine drainage

  • Heavy metals stabilization

  • Waste Recycling & Valorization

  • Environmental treatment

受賞

  • Best oral presentation

    2024年11月   The 17th International Symposium on East Asian Resources Recycling Technology   Mechanism investigation of boron removal with coprecipitated Mg-Al-layered double hydroxide  

    受賞者： Wang Yafan, Yusuf Olalekan Zubair, Shuo Pan, Mauricio Cordova-Udaeta, Chiharu Tokoro

  • Encouragement award award (Spring annual presentation meeting)

    2020年05月   The Society of Powder Engineering, Japan   Evaluation of adsorption performance of zerovalent iron-magnetite nano-composite for Removal of As(Ⅲ) in artificially prepared wastewater  

    受賞者： Yusuf Olalekan Zubair, Shigeshi Fuchida, Chiharu Tokoro

 

論文

  • From mixed battery waste to next-generation cathode: A green co-precipitation route for LMFP from spent LMO/NCA and LFP streams

    Mauricio Córdova-Udaeta, Elizabeth H. Driscoll, Laura L. Driscoll, Yusuf Olalekan Zubair, Chiharu Tokoro, Emma Kendrick

    Chemical Engineering Journal     181434 - 181434  2026年09月

    DOI

  • Mechanism of boron removal and stabilization by in-situ formation of layered double hydroxides: Insight from spectroscopy and DFT studies

    Yafan Wang, Yusuf Olalekan Zubair, Shuo Pan, Chiharu Tokoro

    Journal of Environmental Sciences    2026年02月

    DOI

    Scopus

    2
    被引用数
    (Scopus)

  • Investigation of In Situ Strategy Based on Zn/Al-Layered Double Hydroxides for Enhanced PFOA Removal: Adsorption Mechanism and Fluoride Effect

    Yafan Wang, Yusuf Olalekan Zubair, Chiharu Tokoro

    Applied Sciences   15 ( 24 ) 13064 - 13064  2025年12月

    　概要を見る

    Perfluorooctanoic acid (PFOA) contamination poses serious environmental risks due to its persistence and mobility. Conventional ex situ method using preformed layered double hydroxides (LDHs) shows limited performance, particularly under complex leachate conditions. This study developed an effective in situ Zn/Al LDH strategy for enhanced PFOA removal. Batch experiments, solid-phase characterization, and theoretical simulations were conducted to elucidate the adsorption mechanism and the effect of fluoride ion (F−). The results demonstrated that the in situ method exhibited superior performance in the presence of fluoride, achieving a PFOA adsorption density of up to 54.93 mmol/mol-Al, which is significantly higher than that of the ex situ method (26.76 mmol/mol-Al). Unlike the competitive adsorption observed in the ex situ method, the in situ process relies on synergistic mechanisms: F− participates in LDH formation as an interlayer anion and coordinates with Zn2+ and Al3+ to regulate LDH growth, thereby optimizing the surface chemical environment for PFOA capture. Molecular dynamics (MDs) and density functional theory (DFT) further showed that preferentially adsorbed F− affects hydrogen-bond networks and stabilizes PFOA through inner and outer sphere complexation. Overall, these findings clarify the fluoride-regulated adsorption mechanism and demonstrate the potential of in situ LDH coprecipitation for PFAS remediation in leachates.

    DOI

    Scopus

  • Removal and stabilization of arsenic(III/V) from water using Ca-based LDH derived from calcium oxide: Removal performance and mechanism

    Yusuf Olalekan Zubair, Shigeshi Fuchida, Keishi Oyama, Chiharu Tokoro

    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS   725  2025年11月

    DOI

    Scopus

    8
    被引用数
    (Scopus)

  • Morphologically controlled synthesis of MgFe-LDH using MgO and succinic acid for enhanced arsenic adsorption: Kinetics, equilibrium, and mechanism studies

    Yusuf Olalekan Zubair, Shigeshi Fuchida, Keishi Oyama, Chiharu Tokoro

    Journal of Environmental Sciences    2025年02月

    DOI

    Scopus

    27
    被引用数
    (Scopus)

  • Selective bromination-volatilization of PbO from ZnO-PbO mixtures using bromine-containing plastic: A promising approach for recycling hazardous wastes

    Yusuf Olalekan Zubair, Yuji Takasaki, Yutaro Takaya, Chiharu Tokoro

    Journal of Material Cycles and Waste Management   27 ( 1 ) 616 - 623  2024年12月

    　概要を見る

    Abstract

    This study explores the potential of acrylonitrile butadiene styrene (ABS) resin, a bromine-containing plastic, for selectively separating PbO from a ZnO-PbO mixture. Thermodynamic calculations suggested the susceptibility of both PbO and ZnO to bromination by HBr from ABS resin. Initial trials showed limited PbO and ZnO volatilization. Combusting ABS resin and dust mixtures converts approximately 40 wt% of PbO to PbBr2, but PbO volatilization selectivity remains below 30% due to concurrent ZnO volatilization. This low selectivity is due to the inhibiting effect of char and CO gas on PbBr2 volatilization and the enhancement of ZnO volatilization. To improve PbO volatilization selectivity, operational parameters were varied. Increasing ABS resin size, decreasing pellet size, and altering the heating method raised PbO volatilization selectivity by over three times, with more than 60 wt% PbO volatilized. Microscopic analysis confirmed PbO bromination and volatilization as lead bromide compound (e.g., PbBr2), while ZnO underwent direct volatilization through a carbothermic reaction. This study shows that optimizing operational parameters can selectively separate heavy metals using bromine-containing plastics. For practical application in steelmaking dust, it is crucial to examine the effects of coexisting Fe compounds.

    DOI

    Scopus

    2
    被引用数
    (Scopus)

  • Adsorption and Microscopic Analysis of Arsenate Uptake by Magnetic Fe Nanoparticles: a Detailed Study on Coexisting Anions Effects

    Zubair, Y.O., Fuchida, S., Tokoro, C.

    Water, Air, and Soil Pollution   233 ( 12 )  2022年

    DOI

    Scopus

    7
    被引用数
    (Scopus)

  • Insight into the Mechanism of Arsenic(III/V) Uptake on Mesoporous Zerovalent Iron-Magnetite Nanocomposites: Adsorption and Microscopic Studies

    Zubair, Y.O., Fuchida, S., Tokoro, C.

    ACS Applied Materials and Interfaces   12 ( 44 )  2020年

    DOI

    Scopus

    67
    被引用数
    (Scopus)

▼全件表示

講演・口頭発表等

  • Direct Recycling of Spent Li-Ion Cathodes into Next-Generation Li-Rich Mn-Rich Layered Oxides

    Yusuf Olalekan Zubair, David Burne, Mark Stockham, Abubakr Siddiq, Roberto Sommerville, Emma Kendrick, Chiharu Tokoro

    30th Annual Green Chemistry & Engineering Conference (GC&E 2026)  

    発表年月： 2026年06月

    開催年月：
    2026年06月
    　
    　

  • Enhanced PFOA Immobilization via In Situ Zn/Al-LDH Coprecipitation: Interfacial Mechanisms and Multi-Pathway Capture

    Yafan Wang, Yusuf Olalekan Zubair, Chiharu Tokoro

    The 10th World Congress on Particle Technology (WCPT10)  

    発表年月： 2026年05月

    開催年月：
    2026年05月
    　
    　

  • Layer stacking regulation of montmorillonite with Ca2+ to improve the capability as an adsorbent for arsenic

    Yusuf Olalekan Zubair, Zhuangling Ye, Hisanori Iwai, Keishi Oyama, Hayato Yodoya, Yuuki, Shimada, Hiromichi Matsumoto, Kohei Mitsuhashi, Chiharu Tokoro

    Japan Society of Mineral Resources and Materials, 2026 Spring Meeting  

    発表年月： 2026年03月

    開催年月：
    2026年03月
    　
    　

  • Yusuf Olalekan Zubair, Shigeshi Fuchida, Keishi Oyama, Chiharu Tokoro. "Utilization of CaO in the synthesis of CaFe-based layered double hydroxides for arsenic immobilization

    Yusuf Olalekan Zubair, Shigeshi Fuchida, Keishi Oyama, Chiharu Tokoro

    50th International Conference and Expo on Advanced Ceramics and Composites (ICACC2026)  

    発表年月： 2026年01月

    開催年月：
    2026年01月
    　
    　

  • Advancing Direct Recycling of Spent Li-Ion Batteries: From Electric Pulse Liberation to Manganese-Rich LIB Cathode Regeneration

    Yusuf Olalekan Zubair, Chiharu Tokoro

    International Battery Workshop, supported by ASPIRE and TWINBAT  

    発表年月： 2025年09月

    開催年月：
    2025年09月
    　
    　

  • Comparative study of removing fluorine and perfluoroalkyl substances (PFAS) by the in situ formation process of Zn-based LDH: Interactions mechanism at a molecular level

    Yafan Wang, Yusuf Olalekan Zubair, Chiharu Tokoro

    Goldschmidt2025  

    発表年月： 2025年06月

    開催年月：
    2025年06月
    　
    　

  • The effect of polyvinyl chloride additives on zinc and lead volatilization using chorine containing plastics

    発表年月： 2024年11月

    開催年月：
    2024年11月
    　
    　

  • Mechanism investigation of boron removal with coprecipitated Mg-Al-layered double hydroxide

    Wang Yafan, Yusuf Olalekan Zubair, Shuo Pan, Mauricio Córdova-Udaeta, Chiharu Tokoro

    The 17th International Symposium on East Asian Resources Recycling Technology (EARTH2024)  

    発表年月： 2024年11月

    開催年月：
    2024年11月
    　
    　

  • Modeling the Impact of Temperature on Neutralizer Efficiency for Passive Mine Water Treatment

    Yusuf Olalekan Zubair, Mauricio Córdova-Udaeta, Kengo Horiuchi, Takaya Hamai, Yutaro Takaya, Keishi Oyama, Chiharu Tokoro

    The 63rd Annual Conference of Metallurgists (COM2024)  

    発表年月： 2024年08月

    開催年月：
    2024年08月
    　
    　

  • Preparation of deep eutectic solvents-modified LDH and insights into the mechanism of boron removal

    第21回「資源・素材・環境」技術と研究の交流会  

    発表年月： 2024年08月

  • Role of succinate on MgFe-LDH for arsenic sequestration

    Yusuf O. Zubair, Mauricio Córdova-Udaeta, Keishi Oyama, Shigeshi Fuchida, Chiharu Tokoro

    IUPAC2023  

    発表年月： 2023年08月

    開催年月：
    2023年08月
    　
    　

  • Potential Use of Layered Double Hydroxide Derived From CaO for As(III) Removal From Contaminated Water

    Yusuf O. Zubair, M. C. Udaeta, K. Oyama, S. Fuchida, C. Tokoro

    The 2nd workshop of the Australia-Japan Collaborative Research Network  

    発表年月： 2023年07月

    開催年月：
    2023年07月
    　
    　

  • Arsenic removal and stabilization from wastewater using Mg-Fe layered double hydroxides functionalized by succinic acid

    Yusuf Olalekan Zubair, Mauricio Cordova-Udaeta, Keishi Oyama, Shigeshi Fuchida, Chiharu Tokoro

    Japan-Africa Hybrid Workshop  

    発表年月： 2022年12月

    開催年月：
    2022年12月
    　
    　

  • Preliminary study on adsorptive performance of organic acid-functionalized Mg-Fe LDHs for arsenic removal from contaminated water

    Yusuf O. Zubair, Mauricio Córdova-Udaeta, Shigeshi Fuchida, Chiharu Tokoro

    COPPER 2022  

    発表年月： 2022年11月

    開催年月：
    2022年11月
    　
    　

  • Immobilization mechanism of As(III) from mine water with Mg/Fe LDH fuctionalized with succinic acid

    第19回「資源・素材・環境」技術と研究の交流会  

    発表年月： 2022年08月

  • Selective adsorption of arsenic ions from copper wastewater by carboxylic acid/layered double hydroxides

    資源・素材学会2022年度春季大会  

    発表年月： 2022年03月

    開催年月：
    2022年03月
    　
    　

  • Understanding the anions effect on the selectivity and surface complexation kinetics of arsenic to iron-based adsorbent

    日本地球化学会第68回年会  

    発表年月： 2021年09月

    開催年月：
    2021年09月
    　
    　

  • Quantitative study of pH effect on the kinetics of arsenate surface complexation on magnetic mesoporous nanocomposites

    第18回「資源・素材・環境」技術と研究の交流会  

    発表年月： 2021年08月

    開催年月：
    2021年08月
    　
    　

  • Catalytic oxidation and removal of arsenite by zerovalent iron (Fe0) – magnetite (Fe3O4) composite with peroxymonosulfate (PMS)

    発表年月： 2020年10月

    開催年月：
    2020年10月
    　
    　

  • Enhanced arsenite removal through catalytic oxidation by mesoporous zerovalent iron-magnetite nanocomposites (ZVI-MNCs)

    第17回「資源・素材・環境」技術と研究の交流会  

    発表年月： 2022年10月

    開催年月：
    2020年10月
    　
    　

  • Evaluation of adsorption performance of zerovalent iron-magnetite nano-composite for Removal of As(Ⅲ) in artificially prepared wastewater

    粉体工学会春期研究発表会2020  

    発表年月： 2020年05月

    開催年月：
    2020年05月
    　
    　

  • Immobilization of arsenate using Fe0-Fe3O4 nanoparticles

    化学工学会 第85年会  

    発表年月： 2020年03月

    開催年月：
    2020年03月
    　
    　

  • Investigation of arsenite removal mechanism using Fe0-Fe3O4 : Effect of oxidation and adsorption

    第16回「資源・素材・環境」技術と研究の交流会  

    発表年月： 2019年08月

▼全件表示

Misc

  • Report-1: The 63rd Annual Conference of Metallurgists（COM 2024)

    ズバイル ユスフ オラレカン

      10 ( 1 ) 104 - 105  2025年01月

    担当区分：筆頭著者

    速報，短報，研究ノート等（大学，研究機関紀要）  

  • Removal of Arsenic from Wastewater by Functional Fe-based Adsorbents: Mechanism Elucidation and Practical Implications

    環境資源工学会   70 ( 3 ) 1 - 3  2024年02月

    担当区分：筆頭著者

    記事・総説・解説・論説等（その他）  

  • Preliminary study on adsorptive performance of organic acid-functionalized Mg-Fe LDHs for arsenic removal from contaminated water

      9   77 - 86  2022年11月

    担当区分：筆頭著者

    記事・総説・解説・論説等（国際会議プロシーディングズ）  

  • Catalytic oxidation and removal of arsenite by zerovalent iron (Fe0) – magnetite (Fe3O4) composite with peroxymonosulfate (PMS)

        3478 - 3492  2020年10月

    担当区分：筆頭著者

    記事・総説・解説・論説等（国際会議プロシーディングズ）  

 

現在担当している科目

 

学術貢献活動

  • Certificate of Reviewing

    査読等

    2026年06月
    -
    　

  • Collaborative Workshop with rethink_rotor

    大会・シンポジウム等

    2025年05月
    -
    　

  • JST Sakura Science Program

    大会・シンポジウム等

    Japan Science and Technology Agency (JST)  

    2024年09月
    -
    2024年10月

  • Curtin University and Waseda University Collaborative Symposium, Waseda University

    大会・シンポジウム等

    2024年10月
    -
    　

  • Exchange toward the development of an International Joint Research in the Field of Resource Recycling

    大会・シンポジウム等

    JSTさくらサイエンスプログラム  

    2023年12月
    -
    　

  • Certificate of Reviewing

    査読等

    Journal of Environmental Chemical Engineering  

    2023年
    -
    　

▼全件表示