Faculty of Chemical and Metallurgical Engineering, Department of Chemical Engineering, Yildiz Technical University, 34220, Istanbul, Türkiye.
Environ Sci Pollut Res Int. 2024 Oct;31(50):59947-59960. doi: 10.1007/s11356-024-35101-z. Epub 2024 Oct 4.
Facing the daunting challenge of climate change, driven by escalating greenhouse gas concentrations, our research introduces an innovative solution for CO capture. We explore a novel nanoporous carbon derived from Ulva lactuca, activated with eggshell waste, spotlighting waste valorization in mitigating atmospheric CO. Through a systematic methodology encompassing variable carbonization temperatures (700-900 °C) and nitrogen flow rates (2-4 ml/min), complemented by a suite of characterization techniques, we unveil the synthesis of this pioneering adsorbent. Our study not only presents a novel, sustainable pathway for CO capture but also demonstrates superior performance, particularly with the NC800-4 sample, achieving a CO capture capacity of 1.40 mmol/g at 30 °C, alongside demonstrating consistent adsorption efficiency over four successive adsorption/desorption cycles. This breakthrough underscores the potential of leveraging waste for environmental remediation, offering a dual solution to waste management and carbon capture, utilization, and storage (CCUS) applications.
面对温室气体浓度不断上升所带来的气候变化的艰巨挑战，我们的研究提出了一种用于 CO2 捕获的创新解决方案。我们探索了一种从浒苔中提取的新型纳米多孔碳，利用蛋壳废物进行激活，强调了废物增值在减少大气 CO2 方面的作用。通过包含不同碳化温度（700-900°C）和氮气流速（2-4ml/min）的系统方法，并辅以一系列表征技术，我们揭示了这种开创性吸附剂的合成方法。我们的研究不仅为 CO2 捕获提供了一种新颖、可持续的途径，还展示了卓越的性能，特别是 NC800-4 样品，在 30°C 下达到 1.40mmol/g 的 CO2 捕获容量，并且在四个连续的吸附/解吸循环中表现出一致的吸附效率。这一突破突显了利用废物进行环境修复的潜力，为废物管理和碳捕获、利用和储存（CCUS）应用提供了双重解决方案。
