Hanif Aamir, Aziz Md Abdul, Helal Aasif, Abdelnaby Mahmoud M, Qasem Mohammed Ameen Ahmed, Khan Abuzar, Hakeem Abbas S, Al-Betar Abdul-Rahman F, Khan Mohd Yusuf
Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
Department of Chemical Engineering, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia.
Chem Asian J. 2023 Sep 1;18(17):e202300481. doi: 10.1002/asia.202300481. Epub 2023 Jul 27.
CO capture is a practical approach to mitigating the impacts of global warming. Adsorption-based carbon capture is a clean and potentially energy-efficient method whose performance greatly depends on adsorbent design. In this study, we explored the use of jute-derived carbon as a high-performance adsorbent for CO capture. The carbons were produced by pyrolyzing powdered jute sticks with NaHCO as an activating agent at 500-700 °C. Impressive adsorption capacities of up to 2.5 mmol ⋅ g and CO /N selectivities of up to 54 were achieved by adjusting the pore size distribution and surface functionalization. Based on the isotherm results, the working capacities, regenerabilities, and potentials for CO separation were determined for a practical vacuum swing adsorption process. The adsorbent materials were characterized by XRD, FTIR, Raman, FESEM and N sorption at 77 K. This study provides a general approach for designing adsorbents for various gas-separation applications.
二氧化碳捕集是减轻全球变暖影响的一种切实可行的方法。基于吸附的碳捕集是一种清洁且具有潜在能源效率的方法，其性能在很大程度上取决于吸附剂的设计。在本研究中，我们探索了使用黄麻衍生碳作为用于二氧化碳捕集的高性能吸附剂。这些碳是通过在500 - 700°C下以碳酸氢钠作为活化剂对黄麻粉棒进行热解而制备的。通过调节孔径分布和表面功能化，实现了高达2.5 mmol·g的令人印象深刻的吸附容量以及高达54的二氧化碳/氮气选择性。基于等温线结果，确定了实际变压吸附过程的工作容量、可再生性和二氧化碳分离潜力。通过X射线衍射、傅里叶变换红外光谱、拉曼光谱、场发射扫描电子显微镜和77 K下的氮吸附对吸附剂材料进行了表征。本研究为设计用于各种气体分离应用的吸附剂提供了一种通用方法。
