Fabrication of a 2D/2D g-C3N4@ZnTDA nanosheets catalyst for highly efficient degradation of 2,4-dibromophenol and improved flame retardancy of polyurethane foam

IF 8.6 2区工程技术 Q1 ENERGY & FUELS

Sustainable Materials and Technologies Pub Date : 2024-10-18 DOI:10.1016/j.susmat.2024.e01154

Zhoumei Xu, Fukai Chu, Chuanshen Wang, Xin Wang, Yanbei Hou, Weizhao Hu, Lei Song

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Abstract

High charge separation and transfer efficiency are considered as key factors of photocatalysts in wastewater treatment applications. In this work, a high performance photocatalyst g-C₃N₄@ZnTDA was designed and applied through a facile solvothermal strategy. The microstructural, morphological, physicochemical, and photoelectrochemical properties of g-C₃N₄@ZnTDA were fully characterized. The photocatalytic activity of g-C₃N₄@ZnTDA nanoparticles under visible light source in degrading the 2,4-dibromophenol(2,4-dB) contaminants was also successfully studied. Additionally, the g-C₃N₄@ZnTDA composite demonstrates easy operation and good regeneration ability, making it highly promising for the efficient removal of phenolic pollutants from wastewater. Besides, a novel reutilization method for used catalyst as flame retardant and for PU foams was successfully testified. The MCN-3 as a fire-safety coating could reduce the heat release and improve flame retardancy of PU composites. This work opens a new window for valuable inspiration and structural design of reutilized MOF composites.

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制备 2D/2D g-C3N4@ZnTDA 纳米片催化剂，用于高效降解 2,4-二溴苯酚并改善聚氨酯泡沫的阻燃性能

高电荷分离和转移效率被认为是光催化剂在废水处理应用中的关键因素。本研究通过简便的溶热策略设计并应用了一种高性能光催化剂 g-C3N4@ZnTDA。研究充分表征了 g-C3N4@ZnTDA 的微观结构、形态、物理化学和光电化学特性。还成功研究了 g-C3N4@ZnTDA 纳米粒子在可见光光源下降解 2,4-二溴苯酚（2,4-dB）污染物的光催化活性。此外，g-C3N4@ZnTDA 复合材料具有操作简便、再生能力强等特点，在高效去除废水中的酚类污染物方面具有广阔的应用前景。此外，还成功验证了一种将废催化剂用作阻燃剂和聚氨酯泡沫的新型再利用方法。MCN-3 作为一种防火涂层，可以减少热量释放，提高聚氨酯复合材料的阻燃性。这项工作为重新利用 MOF 复合材料的灵感和结构设计打开了一扇新窗。

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来源期刊

Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment

CiteScore

13.40

自引率

4.20%

发文量

158

审稿时长

45 days

期刊介绍： Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.