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酸化カルシウム（CaO）ナノ構造の探求：環境調和型合成、構造的知見、および新興機能応用

*TITLE: Exploring Calcium Oxide (CaO) Nanostructures: Eco-Friendly Synthesis, Structural Insights, and Emerging Functional Applications* *Author:* Hazrat Bilal *Affiliation:* Department of Chemistry, Abdul Wali Khan University Mardan, Pakistan *Email:* chemistrystudent549@gmail.com *ABSTRACT* Calcium oxide (CaO) nanostructures have gained significant attention as a low-cost, non-toxic, and highly reactive alkaline earth metal oxide. This paper provides a comprehensive overview of recent advan... (原題)

Hazrat Bilal

Zenodo (CERN European Organization for Nuclear Research)📚 査読済 / ジャーナル2026-10-29#CCUS対象セクター: manufacturing
DOI: 10.5281/zenodo.23770405
原典: https://doi.org/10.5281/zenodo.23770405

🤖 gxceed AI 要約

日本語

本論文はCaOナノ構造の環境調和型合成法（植物抽出物を用いたグリーン合成、ゾルゲル法、共沈法、熱分解法）を概説し、XRD・SEM/TEM・FTIRによる構造解析から合成条件と粒径（20〜50nm）・形態・表面塩基性の相関を示す。CO2吸収（CaO+CO2→CaCO3）、バイオディーゼル触媒、排水処理、抗菌作用、セメント材料強化など応用を幅広くレビューする。

English

This review surveys eco-friendly synthesis routes for CaO nanostructures (plant-extract green synthesis, sol-gel, co-precipitation, thermal decomposition) and structural characterization via XRD, SEM/TEM and FTIR, linking synthesis conditions to particle size (20-50 nm), morphology and surface basicity. It critically reviews applications including CO2 capture (CaO + CO2 -> CaCO3), biodiesel catalysis, wastewater treatment, antimicrobial activity and cement enhancement.

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

CaO系CO2吸収材は日本のCCUS・カーボンリサイクル政策やセメント産業の脱炭素（CO2鉱化）と接点があり、素材レベルでの基礎知見として参考になる。ただし実装・コスト評価は別途必要。

In the global GX context

CaO-based sorbents connect to global CCUS and mineral carbonation pathways, relevant to hard-to-abate sectors like cement under net-zero transition planning. As a materials review it offers foundational insight rather than disclosure or policy analysis.

👥 読者別の含意

🔬研究者:CaOナノ粒子の合成-構造-機能相関とCO2吸収・触媒応用の最新動向を整理する基礎資料となる。

🏢実務担当者:セメント・素材企業がCO2鉱化や代替吸収材の素材候補を検討する際の基礎情報になりうる。

📄 Abstract（原文）

This study presents a comprehensive overview of eco-friendly synthesis routes for Calcium Oxide (CaO) nanostructures and their emerging functional applications. CaO nanoparticles were discussed with focus on green synthesis using plant extracts, sol-gel, co-precipitation, and thermal decomposition methods. Structural properties were analyzed by XRD, SEM/TEM, and FTIR techniques. The paper highlights the correlation between synthesis conditions, particle size (20-50 nm), morphology, and surface basicity. Furthermore, potential applications of CaO nanostructures are critically reviewed, including CO2 capture (CaO + CO2 -> CaCO3), biodiesel production as heterogeneous solid base catalyst, wastewater treatment for heavy metal and dye removal, antimicrobial activity against E. coli and S. aureus, and enhancement of cement and construction materials. Author: Hazrat Bilal, Department of Chemistry, Abdul Wali Khan University Mardan, Pakistan. Email: chemistrystudent549@gmail.com Keywords: Calcium Oxide, CaO Nanoparticles, Green Synthesis, CO2 Capture, Biodiesel

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