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Rational Design of MOF/COF Hybrid Materials for Photocatalytic H2 Evolution in the Presence of Sacrificial Electron Donors
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2018-08-07 , DOI: 10.1002/anie.201806862
Feng-Ming Zhang 1 , Jing-Li Sheng 1 , Zhao-Di Yang 1 , Xiao-Jun Sun 1 , Hong-Liang Tang 1 , Meng Lu 2 , Hong Dong 1 , Feng-Cui Shen 2 , Jiang Liu 2 , Ya-Qian Lan 2
Affiliation  

Crystalline and porous covalent organic frameworks (COFs) and metal‐organic frameworks (MOFs) materials have attracted enormous attention in the field of photocatalytic H2 evolution due to their long‐range order structures, large surface areas, outstanding visible light absorbance, and tunable band gaps. In this work, we successfully integrated two‐dimensional (2D) COF with stable MOF. By covalently anchoring NH2‐UiO‐66 onto the surface of TpPa‐1‐COF, a new type of MOF/COF hybrid materials with high surface area, porous framework, and high crystallinity was synthesized. The resulting hierarchical porous hybrid materials show efficient photocatalytic H2 evolution under visible light irradiation. Especially, NH2‐UiO‐66/TpPa‐1‐COF (4:6) exhibits the maximum photocatalytic H2 evolution rate of 23.41 mmol g−1 h−1 (with the TOF of 402.36 h−1), which is approximately 20 times higher than that of the parent TpPa‐1‐COF and the best performance photocatalyst for H2 evolution among various MOF‐ and COF‐based photocatalysts.

中文翻译:

牺牲电子给体存在下用于光催化氢气释放的MOF / COF杂化材料的合理设计

晶体和多孔共价有机骨架(COF)和金属有机骨架(MOF)材料因其长程结构,大表面积,出色的可见光吸收率和可调性而在光催化H 2演化领域引起了极大关注。带隙。在这项工作中,我们成功地将二维(2D)COF与稳定的MOF集成在一起。通过将NH 2 -UiO-66共价锚固在TpPa-1-COF的表面上,合成了一种新型的具有高表面积,多孔骨架和高结晶度的MOF / COF杂化材料。所得的分层多孔杂化材料在可见光照射下显示出有效的光催化H 2放出。特别是NH 2‐UiO‐66 / TpPa‐1‐COF(4:6)的最大光催化H 2放出速率为23.41 mmol g -1  h -1(TOF为402.36 h -1),大约是其高20倍。它是母体TpPa-1-COF的最佳催化剂,也是各种基于MOF和COF的光催化剂中H 2析出的最佳性能光催化剂。
更新日期:2018-08-07
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