Recent advancements in sustainable upcycling of solid waste into porous carbons for carbon dioxide capture
Recent advancements in sustainable upcycling of solid waste into porous carbons for carbon dioxide capture
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DOI：
10.1016/j.rser.2022.112413
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发表时间：
2022-07
影响因子：
15.9
通讯作者：
Xiangzhou Yuan;Junyao Wang;Shuai Deng;Manu Suvarna;Xiaonan Wang;Wei Zhang;Sara T. Hamilton;
中科院分区：
文献类型：
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作者：
Xiangzhou Yuan;Junyao Wang;Shuai Deng;Manu Suvarna;Xiaonan Wang;Wei Zhang;Sara T. Hamilton;
碳捕获技术作为减少二氧化碳排放不可或缺的工具得到了广泛的研究。特别是，利用固体废物衍生的多孔碳(SWDPC)捕获二氧化碳作为同时缓解气候变化和应对固体废物管理挑战的最有前途和最可持续的方法之一，已经引起了重大研究关注。最近，人们对固体废物的热处理和化学处理进行了大量的研究，以将其向上循环为多孔碳(PC)，从而有效和选择性地捕获二氧化碳。在这篇综述中，我们讨论了使用SWDPC捕获二氧化碳的协同效益，并介绍了将固体废物转化为具有所需物理和化学特性的PC的创新方法。从合成路线、CO2捕集能力、过程可循环性和机器学习指导下的样品优化等方面对SWDPC的CO2捕集性能进行了综合讨论。此外，还从孔结构和表面官能团的角度探讨了二氧化碳在聚碳酸酯上的吸附机理。此外，还对固体废物合成的聚碳酸酯的生命周期环境影响及其在二氧化碳捕获方面的实际应用进行了评价。结合联合国可持续发展目标，分析了拟议的基于SWDPC的二氧化碳捕获方法的总体环境效益。此外，还讨论了将固体废物回收为高性能二氧化碳吸附剂的剩余挑战，并提出了可能的解决方案。
Carbon capture technologies have been extensively investigated as indispensable tools for reducing CO2emissions. In particular, CO2capture using solid waste-derived porous carbons (SWDPCs) has attracted significant research attention as one of the most promising and sustainable approaches to simultaneously mitigate climate change and address solid waste management challenges. Considerable research has recently been conducted on the thermal and chemical treatments of solid waste for upcycling into porous carbons (PCs) for effective and selective CO2capture. In this review, we discuss the synergistic benefits of employing SWDPCs for CO2capture and introduce innovative approaches for converting solid waste into PCs with the desired physical and chemical properties. The performance of SWDPCs for CO2capture is comprehensively discussed in terms of the synthesis route, CO2capture capacity, process cyclability, and sample optimization guided by machine learning. Furthermore, the mechanisms of CO2capture on PCs are discussed based on pore structures and incorporated surface functional groups. The life-cycle environmental impact of the PCs synthesized from solid waste and their practical applications for CO2capture are also evaluated. The overall environmental benefits of the proposed SWDPC-based CO2capture approach are analyzed in relation to the United Nations Sustainable Development Goals. Furthermore, the remaining challenges in upcycling solid waste into high-performance CO2adsorbents are discussed, and potential solutions are proposed.