Waste wood-derived dual Z-scheme WO3/ZnIn2S4/biochar heterojunctions design: Renewable biomass transition for efficient photocatalytic hydrogen evolution.
廃木材由来の二元ZスキームWO3/ZnIn2S4/バイオ炭ヘテロ接合の設計：再生可能バイオマス転換による高効率光触媒水素生成 (AI 翻訳)
Y. Qu, Shihu Lei, Xinyang Zhang, Zijun Ye, Dongfeng Sun, Yuan Yu, Madi Ren
🤖 gxceed AI 要約
日本語
廃木材由来のバイオ炭を用いたWO3/ZnIn2S4/バイオ炭三元ヘテロ接合を構築し、可視光下での水素生成速度4.82 mmol/g/hを達成。純ZnIn2S4の9.4倍、ZIS/WO3の2.2倍の性能向上。DFT計算とESR分析により二元Zスキーム機構を確認。バイオ炭が構造支持体と電子貯蔵庫として機能し、光吸収と電荷移動を促進。木材廃棄物のリサイクルとグリーン水素への再生可能エネルギー転換に貢献。
English
A ternary heterojunction WO3/ZnIn2S4/biochar derived from waste wood achieved a hydrogen evolution rate of 4.82 mmol/g/h under visible light, 9.4 times higher than pure ZnIn2S4. DFT and ESR analyses confirmed a dual Z-scheme mechanism, with biochar acting as both structural support and electron reservoir. This work enhances wood waste recyclability and advances renewable energy transition to green hydrogen.
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
日本は水素社会実現を目指しており、グリーン水素の製造技術は重要。バイオマス由来の廃棄物を活用した水素製造は、カーボンニュートラル政策と整合し、地域資源の有効活用にも寄与する。
In the global GX context
This research contributes to the global push for green hydrogen production, aligning with international climate goals and the transition to renewable energy. The use of waste biomass as a precursor for photocatalysts offers a sustainable approach to hydrogen generation, relevant to global efforts in decarbonization.
👥 読者別の含意
🔬研究者:Provides a novel dual Z-scheme heterojunction design using biochar, offering insights into efficient photocatalytic hydrogen production.
🏢実務担当者:Potential for developing sustainable hydrogen production processes using waste biomass, relevant for companies in the energy and waste management sectors.
🏛政策担当者:Supports policies promoting biomass utilization and green hydrogen as part of renewable energy strategies.
📄 Abstract（原文）
Waste-wood derived biochar was one of potential cocatalysts for catalyst construction, while relevant reports were scarce due to its irregularity, impeded connection properties, etc. necessitating further exploration. In this work, a waste wood-derived tungsten trioxide (WO3)/zinc indium sulfide (ZnIn2S4, ZIS)/biochar (BC) ternary heterojunction was fabricated for interfacial photocatalytic hydrogen (H2) evolution via a two-step hydrothermal method. Under visible light irradiation, the WO3/ZIS/BC achieved a H2 evolution rate of 4.82 mmol/g/h, which was 9.4 and 2.2 times higher than that of pure ZnIn2S4 and ZIS/WO3 material. Based on DFT calculations and ESR analyses, the electrons in composite were transferred from WO3 to ZIS and from BC to ZIS, confirming the function of a dual Z-scheme system. Herein, the biochar was acted as both a structural supporter and an electron reservoir, enhancing light absorption, expanding charge-transfer regions, and improving stability of the ternary composite. This work provides a robust theoretical foundation and technique support for enhancing wood waste recyclability and advancing renewable energy transition from biomass to green hydrogen.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1016/j.jcis.2026.140090first seen 2026-05-15 20:15:27 · last seen 2026-07-18 07:04:56
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