(201m) Hybrid Inorganic Nanosheets and Metal-Organic Frameworks for Efficient Photocatalytic Water Splitting

New hybrid materials of exfoliated layered double hydroxide nanosheet (LDH NSs) and metal-organic frameworks (MOFs) were successfully syntheized. A colloidal suspension of LDH NSs was firstly prepared through hydrothermal reaction for powdery LDH (i.e., ZnCr-LDH) and its exfoliation process in organic solvents (e.g. formamide, dimethylformamide). The MOF/LDH hybrid materials were developed by the crystal growth of MOF(i.e., MIL(Ti)-125-NH₂) in the colloidal suspension of LDH Ns. The obtained hybrid materials were systematically characterized by various tools such as powder XRD, SEM, TEM, BET, FT-IR, UV-Vis and so on. The hybrid materials were carried out tests of photocatalytic water splitting under visible light irradiation (λ≥420 nm) and we found that its performances were better than those shown by individuals. In particular, the hybridization with layered inorganic nanosheets enhanced the structural stability of MOF, which is attributed to the strong coupling of MOF with functional groups on the surface of robust inorganic nanosheet. In this presentaion, synthesis procedure and mechanism, structural formation, several applicaions for the hyrbid meterials will be discussed in detail. Obviously, the current study demonstrates the advantages of the hybridization with inorganic nanosheet not only in improving the structural stability of MOF but also in optimizing the functionality of this material.