Isotherm Equilibrium Parameters of Methylene Blue Adsorption on Activated Carbon From Waste Coffee Grounds
廃コーヒーかす由来活性炭によるメチレンブルー吸着の等温平衡パラメータ (AI 翻訳)
Wa Ode Sitti Ilmawati, Nurmayasari Nurmayasari, Ari Dwi Nugraheni, Sholihun Sholihun
🤖 gxceed AI 要約
日本語
廃コーヒーかすから調製した活性炭（WCGs–AC）を用い、メチレンブルー吸着の平衡挙動を26種の等温式で解析。Langmuir式が最高の適合度（R²=0.9987）を示し、物理吸着と化学吸着が併存することを確認。ZnCl₂賦活したWCGs–ACは低コストの吸着材として有望。
English
This study evaluates methylene blue adsorption on activated carbon derived from waste coffee grounds using 26 isotherm equations. The Langmuir model showed the best fit (R²=0.9987), indicating both physisorption and chemisorption. ZnCl₂-activated WCGs-AC is a promising low-cost adsorbent for wastewater treatment.
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
日本でもコーヒーかすの利活用は循環経済の観点で注目されており、廃棄物削減と資源有効利用に資する知見として参考になる。ただし、GX開示や気候変動政策への直接的な示唆は限定的。
In the global GX context
This work contributes to the circular economy by valorizing coffee waste into a low-cost adsorbent for wastewater treatment, aligning with sustainable development and resource-efficiency goals. It provides experimental data on adsorption isotherms that may support industrial-scale design.
👥 読者別の含意
🔬研究者:Useful for researchers in adsorption and wastewater treatment, offering a systematic comparison of isotherm models on a waste-derived adsorbent.
📄 Abstract（原文）
ABSTRACT This study investigated the adsorption isotherms of methylene blue (MB) onto activated carbon derived from waste coffee grounds (WCGs–AC). To explore the adsorption characteristics of WCGs–AC, twenty‐six adsorption isotherm equations were evaluated to investigate the equilibrium adsorption behavior of MB on WCGs–AC. The model that best fits the data was selected based on the highest R 2 = 0.9987, with the Langmuir model showing the best performance. The free energy change (Δ G ) was calculated using the Langmuir constant ( K L ), and the results indicated that the adsorption process involved physisorption and chemisorption. These findings demonstrate that ZnCl 2 ‐activated WCGs–AC is a promising low‐cost adsorbent for methylene blue removal from aqueous solutions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/vjch.70163first seen 2026-07-31 05:58:29
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