Advances in Titanium Carbide (Ti(3)C(2)T (x) ) MXenes and Their Metal-Organic Framework (MOF)-Based Nanotextures for Solar Energy Applications: A Review.
Advances in Titanium Carbide (Ti(3)C(2)T (x) ) MXenes and Their Metal-Organic Framework (MOF)-Based Nanotextures for Solar Energy Applications: A Review.
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DOI：
10.1021/acsomega.2c05030
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发表时间：
2022-11-01
期刊：
影响因子：
4.1
通讯作者：
Tahir, Muhammad
中科院分区：
文献类型：
--
作者：
Fan, Wei Keen;Sherryna, Areen;Tahir, Muhammad
引入低成本和卓越的太阳能收集效率的新材料需要迫切关注以解决能源和环境挑战。碳化钛 (Ti3C2TX) MXene 是一种 2D 层状材料，由于其良好的导电性和作为助催化剂/载体的低成本，是解决现有材料问题的有前途的解决方案。另一方面，金属有机框架（MOF）由于其高表面积和半导体特性而成为新兴材料。因此，将它们耦合起来有望形成具有更高太阳能收集效率的复合材料。因此，这项工作的主要目的是公开基于 Ti3C2TX 的 MOF 纳米复合材料在能量转换应用中生产可再生燃料的最新进展。 MOF 可以产生光生电子/空穴对，然后通过肖特基结将电子转移到 MXene，进行光氧化还原反应。目前，人们对构建肖特基结的光催化系统的原理、基础和机制进行了严格的讨论。然后从物理性质、形态、光学性质和衍生物方面全面讨论了 MOF 的基础知识。系统地阐述了 Ti3C2TX MXene 及其复合材料的合成以及表面官能团的形成。接下来，对 Ti3C2TX MXene 和 MOF 形态的设计考虑因素和策略进行了关键讨论。然后深入讨论 Ti3C2TX MXene 和 MOF 的界面/异质结改性策略，以了解两种材料的作用。接下来，对 MXene 介导的 MOF 纳米结构在二氧化碳减排和太阳能燃料生产中水分解方面的应用进行了批判性分析。最后，揭示了 MXene 基 MOF 复合材料未来研究的挑战和前景。
Introducing new materials with low cost and superior solar harvesting efficiency requires urgent attention to solve energy and environmental challenges. Titanium carbide (Ti3C2Tx) MXene, a 2D layered material, is a promising solution to solve the issues of existing materials due to their promising conductivity with low cost to function as a cocatalyst/support. On the other hand, metal–organic frameworks (MOFs) are emerging materials due to their high surface area and semiconducting characteristics. Therefore, coupling them would be promising to form composites with higher solar harvesting efficiency. Thus, the main objective of this work to disclose recent development in Ti3C2Tx-based MOF nanocomposites for energy conversion applications to produce renewable fuels. MOFs can generate photoinduced electron/hole pairs, followed by transfer of electrons to MXenes through Schottky junctions for photoredox reactions. Currently, the principles, fundamentals, and mechanism of photocatalytic systems with construction of Schottky junctions are critically discussed. Then the basics of MOFs are discussed thoroughly in terms of their physical properties, morphologies, optical properties, and derivatives. The synthesis of Ti3C2Tx MXenes and their composites with the formation of surface functionals is systematically illustrated. Next, critical discussions are conducted on design considerations and strategies to engineer the morphology of Ti3C2Tx MXenes and MOFs. The interfacial/heterojunction modification strategies of Ti3C2Tx MXenes and MOFs are then deeply discussed to understand the roles of both materials. Following that, the applications of MXene-mediated MOF nanotextures in view of CO2 reduction and water splitting for solar fuel production are critically analyzed. Finally, the challenges and a perspective toward the future research of MXene-based MOF composites are disclosed.
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