Ma Dongge, Li Jundan, Liu Anan, Chen Chuncheng
School of Science, Beijing Technology and Business University, Beijing 100048, China.
Basic Experimental Center for Natural Science, University of Science and Technology Beijing, Beijing 100083, China.
Materials (Basel). 2020 Apr 8;13(7):1734. doi: 10.3390/ma13071734.
Carbon gels are a kind of porous organic polymer, which play pivotal roles in electrode, supercapacitor, hydrogen storage, and catalysis. Carbon gels are commonly prepared by the condensation of resorcinol and formaldehyde. The as-prepared polymers are further aged and sintered at a high temperature in an inert atmosphere to form cross-linked and intertwined porous structures. Owing to its large specific area and narrow pore size distribution, this kind of material is very appropriate for mass transfer, substrate absorption, and product desorption from the pores. In recent years, carbon gels have been discovered to function as effective hybrid materials with TiO for photocatalytic applications. They could act as efficient deep-traps for photo-induced holes, which decreases the recombination probability of photo-induced carriers and lengthens their lifetime. In this mini-review, we will discuss the state-of-the-art paragon examples of carbon gels/TiO composite materials applied in photo(electro)catalysis. The major challenges and gaps of its application in this field will also be emphasized.
碳凝胶是一种多孔有机聚合物，在电极、超级电容器、储氢和催化等方面发挥着关键作用。碳凝胶通常通过间苯二酚和甲醛的缩合反应制备。所制备的聚合物进一步老化，并在惰性气氛中高温烧结，以形成交联和交织的多孔结构。由于其比表面积大且孔径分布窄，这种材料非常适合传质、底物吸收以及产物从孔中的解吸。近年来，已发现碳凝胶作为与TiO的有效杂化材料用于光催化应用。它们可以作为光生空穴的有效深陷阱，这降低了光生载流子的复合概率并延长了它们的寿命。在本综述中，我们将讨论应用于光（电）催化的碳凝胶/TiO复合材料的最新典型示例。还将强调其在该领域应用的主要挑战和差距。
