Scholarlink

<p>The growing global demand for lithium, driven by its pivotal role in lithium-ion batteries (LIBs) for electric vehicles and renewable energy storage, necessitates the development of efficient and sustainable recovery strategies. This study introduces a systematic optimisation approach for synthesising titanium-based lithium-ion sieves (Li<sub>2</sub>TiO<sub>3</sub>/LTO) via a solid-state reaction using TiO<sub>2</sub> and Li<sub>2</sub>CO<sub>3</sub> as precursors, followed by delithiation to produce H<sub>2</sub>TiO<sub>3</sub> (HTO). The effects of calcination temperature, heating rate, and Li/Ti molar ratio on structural and functional properties were systematically investigated. Optimal synthesis conditions (Li/Ti ratio 2.0, 850&#xa0;°C, 9&#xa0;°C/min) yielded an adsorption capacity of ~ 65&#xa0;mg/g. Advanced characterisation (XRD, SEM, FTIR, ICP-OES, PSA) confirmed phase purity, nanoscale morphology, and successful delithiation. Kinetic modelling identified the three-dimensional diffusion (Jander) model as most appropriate, with activation energy and pre-exponential factors increasing at higher Li/Ti ratios. Reusability testing demonstrated that HTO outperformed Mn-based sieves, maintaining 55&#xa0;mg/g after 10 cycles with a Ti dissolution rate of 2.5%. An economic assessment further highlighted the lower operational cost and environmental burden of Ti-based sieves compared to Mn-based alternatives. Overall, the optimised HTO exhibits high adsorption capacity, superior cyclic stability, and economic feasibility, positioning it as a strong candidate for scalable and sustainable lithium recovery from brine.</p> Graphical abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development and optimisation of titanium-based lithium-ion sieves through solid-state synthesis for high-efficiency Brine lithium recovery

  • 期刊论文

  • 发表日期：

    2025年11月10日

查看全文
  • Vincent Sutresno Hadi Sujoto,
  • Agus Prasetya,
  • Sutijan,
  • Widi Astuti,
  • Siti Nurul Aisyiyah Jenie,
  • Ferian Anggara,
  • Himawan Tri Bayu Murti Petrus

摘要

The growing global demand for lithium, driven by its pivotal role in lithium-ion batteries (LIBs) for electric vehicles and renewable energy storage, necessitates the development of efficient and sustainable recovery strategies. This study introduces a systematic optimisation approach for synthesising titanium-based lithium-ion sieves (Li2TiO3/LTO) via a solid-state reaction using TiO2 and Li2CO3 as precursors, followed by delithiation to produce H2TiO3 (HTO). The effects of calcination temperature, heating rate, and Li/Ti molar ratio on structural and functional properties were systematically investigated. Optimal synthesis conditions (Li/Ti ratio 2.0, 850 °C, 9 °C/min) yielded an adsorption capacity of ~ 65 mg/g. Advanced characterisation (XRD, SEM, FTIR, ICP-OES, PSA) confirmed phase purity, nanoscale morphology, and successful delithiation. Kinetic modelling identified the three-dimensional diffusion (Jander) model as most appropriate, with activation energy and pre-exponential factors increasing at higher Li/Ti ratios. Reusability testing demonstrated that HTO outperformed Mn-based sieves, maintaining 55 mg/g after 10 cycles with a Ti dissolution rate of 2.5%. An economic assessment further highlighted the lower operational cost and environmental burden of Ti-based sieves compared to Mn-based alternatives. Overall, the optimised HTO exhibits high adsorption capacity, superior cyclic stability, and economic feasibility, positioning it as a strong candidate for scalable and sustainable lithium recovery from brine.

Graphical abstract