Carbon recovered from lithium ion batteries for methylene blue adsorption and environmental remediation
リチウムイオンバッテリーから回収した炭素によるメチレンブルーの吸着と環境修復 (AI 翻訳)
Eric M. Garcia, Hosane A. Taroco, Julio O. F. Melo
🤖 gxceed AI 要約
日本語
使用済みリチウムイオンバッテリーのアノードから回収したグラファイト炭素を化学処理のみで吸着材として利用。メチレンブルーの除去に効果的で、pH10で最大吸着容量7.25 mg/g、7回の再生サイクル後も90%以上の効率を維持。廃バッテリーの価値化と環境修復に貢献。
English
Graphitic carbon recovered from spent Li-ion battery anodes via acid washing was tested as an adsorbent for methylene blue removal. Maximum adsorption (7.25 mg/g at pH 10) and over 90% efficiency after seven regeneration cycles demonstrate a low-cost waste valorization approach for environmental remediation.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本は廃バッテリーのリサイクル義務化や循環経済政策を推進中。本研究成果は、リチウムイオンバッテリーの廃棄物から安価な吸着材を製造する可能性を示し、資源循環型社会の構築に資する。
In the global GX context
Globally, battery recycling is critical for sustainable EV supply chains. This paper shows a simple method to convert spent battery anodes into a functional adsorbent, contributing to circular economy goals and reducing waste management costs.
👥 読者別の含意
🔬研究者:The study provides a simple, low-energy method for recovering carbon from battery anodes and demonstrates its potential as an adsorbent, offering a foundation for further optimization.
🏢実務担当者:Battery recyclers could explore this process as a way to add value to anode waste, producing a reusable adsorbent for wastewater treatment.
🏛政策担当者:Policymakers may consider supporting research on battery waste valorization to promote circular economy and reduce environmental impacts of battery disposal.
📄 Abstract（原文）
Graphitic carbon recovered from spent lithium-ion battery anodes was investigated as an adsorbent for methylene blue removal, providing a waste-valorization approach based on minimal processing. The material was obtained through acid washing without chemical activation. Adsorption experiments were conducted at different pH values under typical conditions of initial dye concentration of 10–100 mg L -1 , adsorbent dosage of 1 g L -1 , and equilibrium time of 120–150 min, with 24 h adopted to ensure complete equilibrium. Adsorption was strongly pH-dependent, with maximum performance at pH 10 and a Langmuir capacity of 7.25 mg g -1 (R² = 0.998). Thermodynamic parameters (ΔH° = −6.64 ± 0.47 kJ mol -1 , ΔG° ≈ −13 to − 15 kJ mol -1 , ΔS° = +23.4 ± 1.6 J mol -1 K -1 ) confirmed a spontaneous, entropy-driven physisorption process. Kinetic analysis showed increased adsorption rates at higher pH, with the generalized near-equilibrium (GNE) model indicating a PFO-like monoexponential relaxation regime. Enhanced electrostatic interactions were the main driving force, while π–π interactions contributed as a secondary mechanism. XRD and FTIR analyses confirmed graphitic domains and surface functional groups.The material maintained over 90% efficiency after seven regeneration cycles. These results demonstrate that recycled anode-derived graphitic carbon is a promising low-cost adsorbent for dye removal and supports the valorization of battery waste for environmental applications.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1007/s44508-026-00013-yfirst seen 2026-06-27 04:57:55
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