吸附
金属有机骨架
Boosting(机器学习)
噻吩
硫黄
化学
对偶(语法数字)
组合化学
材料科学
有机化学
计算机科学
机器学习
文学类
艺术
作者
Xiuxuan Fang,Jiaying Zou,Xichen Mi,Na Ma,Wei Dai
出处
期刊:Langmuir
[American Chemical Society]
日期:2024-01-17
卷期号:40 (4): 2405-2415
被引量:3
标识
DOI:10.1021/acs.langmuir.3c03891
摘要
A single metal–organic framework (MOF) exhibits some drawbacks in deep adsorptive desulfurization such as insufficient functional active sites, water instability, low surface area, etc. Herein, a dual-amino-functionalized (ZIF-8-NH2)-PVP-(Cu-BTC-NH2) core–shell dual MOF adsorbent was first synthesized by the hydrothermal growth method. The adsorption performance of thiophene sulfur (ThS) is systematically investigated and evaluated at mild temperatures through batch tests. The (ZIF-8-NH2)-PVP-(Cu-BTC-NH2) exhibits good adsorption ability toward ThS, which is attributed to the associative effects of dual MOFs with structure features such as hydrogen bond, open metal active sites, suitable pore sizes and π–π conjugation, etc. Meanwhile, the (ZIF-8-NH2)-PVP-(Cu-BTC-NH2) embedded 25 wt % water still remains crystal intact and good adsorption desulfurization performance, which is attributed to the NH2– functional groups. After five recycles, more than 90% ThS uptake onto (ZIF-8-NH2)-PVP-(Cu-BTC-NH2) could be recovered, exhibiting good reuse performance. This study presents a new strategy for grafting MOF-on-MOF with specific functional groups to improve the abilities of desulfurization and water resistance.
科研通智能强力驱动
Strongly Powered by AbleSci AI