Xiao Gao, Guo Junling, Zheng Mingzhu, Zhang Jun, Chen Liyin, Dai Manna, Afewerki Samson, Chen Xing, Zhang Xingcai
College of Environment and Safety Engineering, Fuzhou University, Fuzhou 350108, Fujian, P. R. China.
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States.
Nano Lett. 2024 Dec 11;24(49):15509-15516. doi: 10.1021/acs.nanolett.4c03070. Epub 2024 Nov 27.
Transforming spent coffee grounds and tea residues into valuable hierarchical porous materials presents a sustainable solution for environmental remediation due to the low cost, extensive availability, and versatile functionalized interface. Here, we systematically investigated tea polyphenol-mediated morphological transformation of spent coffee grounds to the synthesis of three-dimensional (3D) mesoporous metal-organic framework (MOF)-derived nanoarchitectured carbon composites. We adopted the sustainable cost-effective tea-coffee derivative to remove typical marine micropollutants, such as antibiotic wastewater, radioactive pollutants, and microplastics. This innovative adsorbent shows remarkable efficiency in antibiotic adsorption, achieving up to 99.62% removal of tetracycline (TC), with an impressive maximum adsorption capacity of 373.1 mg/g. It also demonstrates a remarkable ability to remove marine microplastics and radioactive pollutants with immediate nuclear threats and global sanitation and health crisis posed by Fukushima nuclear waste toward the world. The innovative strategy of treating waste with waste highlights economic potential in wastewater treatment.
将废弃咖啡渣和茶叶残渣转化为有价值的分级多孔材料，因其低成本、广泛可得性和多功能官能化界面，为环境修复提供了一种可持续的解决方案。在此，我们系统地研究了茶多酚介导的废弃咖啡渣形态转变，以合成三维（3D）介孔金属有机框架（MOF）衍生的纳米结构碳复合材料。我们采用这种具有成本效益的可持续茶 - 咖啡衍生物来去除典型的海洋微污染物，如抗生素废水、放射性污染物和微塑料。这种创新型吸附剂在抗生素吸附方面表现出显著效率，四环素（TC）去除率高达99.62%，最大吸附容量达373.1 mg/g，令人印象深刻。它还展现出卓越能力，能够去除海洋微塑料和放射性污染物，以及应对福岛核废料给全球带来的即时核威胁、环境卫生和健康危机。这种以废治废的创新策略凸显了废水处理中的经济潜力。
