用于可持续废水处理和热能储存的 NH2-MIL-88B/Ta4C3TX/ 石墨烯协同气凝胶

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2024-11-13 DOI:10.1016/j.carbon.2024.119823

Jiarong Zhang , Long Yu , Ya'nan Zhao , Tianran Zhao , Yi'na Yang , Chunna Yu , Chang Zhao , Guangjian Xing

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引用次数: 0

摘要

要解决当代社会面临的环境污染和能源短缺问题，迫切需要多功能、高性能的材料。本研究提出了创新的 NH2-MIL-88B/Ta4C3TX/ 石墨烯气凝胶，这种气凝胶在利用太阳能进行光催化和热能储存方面表现出卓越的性能。这些气凝胶是通过水热法和冷冻干燥法合成的，具有独特的结构特征，包括分层多孔结构、低密度和大比表面积。此外，NH2-MIL-88B、Ta4C3TX MXene 和气凝胶基质的协同作用还能产生显著的理化特性，如高阳光吸收率和与太阳光谱相匹配的最佳光带隙。这些特性使气凝胶能够光降解各种高浓度染料和抗生素药物溶液。刚果红的光降解效率为 75.57%，亚甲基蓝的光降解效率为 61.56%，盐酸四环素的光降解效率为 58.57%。此外，这些气凝胶对各种染料和药物具有显著的吸附能力。此外，当相变材料聚乙二醇被成功整合到气凝胶中时，气凝胶表现出卓越的热能储存性能和防泄漏能力。光热转换效率高达 90.15%，相焓为 202.13 J g-1，焓效率为 98.55%。这项研究为开发多功能气凝胶以应对废水处理和能源短缺的挑战提供了宝贵的见解。

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Synergistic NH2-MIL-88B/Ta4C3TX/graphene aerogels for sustainable wastewater treatment and thermal energy storage

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Synergistic NH2-MIL-88B/Ta4C3TX/graphene aerogels for sustainable wastewater treatment and thermal energy storage

The urgent need for multifunctional, high-performance materials is critical in addressing environmental pollution and energy shortages faced by contemporary society. This research presents innovative NH₂-MIL-88B/Ta₄C₃T_X/graphene aerogels that exhibit exceptional capabilities in photocatalysis and thermal energy storage utilizing solar energy. Synthesized through a combination of hydrothermal and freeze-drying methods, these aerogels feature unique structural characteristics, including a hierarchical porous structure, low density, and a large specific surface area. Furthermore, the synergistic effects of NH₂-MIL-88B, Ta₄C₃T_X MXene, and the aerogel matrix contribute to remarkable physicochemical properties, such as high sunlight absorptivity and an optimal optical band gap that aligns well with the solar spectrum. These attributes enable the aerogels to photodegrade various dye and antibiotic drug solutions with high concentrations. The photodegradation efficiencies achieved were 75.57 % for Congo red, 61.56 % for methylene blue, and 58.57 % for tetracycline hydrochloride. Additionally, these aerogels exhibit significant adsorption capacities for various dyes and drugs. Moreover, when the phase change material polyethylene glycol is successfully integrated into the aerogels, they exhibit excellent thermal energy storage performance with leak-proof capabilities. A high photothermal conversion efficiency of 90.15 %, a phase enthalpy of 202.13 J g⁻¹, and an enthalpy efficiency of 98.55 % provide evidence for this. This work provides valuable insights into the development of multifunctional aerogels aimed at addressing the challenges of wastewater treatment and energy shortages.

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.