Zang Shaohong, Cai Xiaorong, Zang Yixian, Jing Fei, Lu Youwei, Tang Shuting, Lin Feng, Mo Liuye
Donghai Laboratory, Zhoushan 316021, China.
Institute of Innovation & Application, National Engineering Research Center For Marine Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang Province 316022, China.
Inorg Chem. 2024 Apr 8;63(14):6546-6554. doi: 10.1021/acs.inorgchem.4c00645. Epub 2024 Mar 27.
ZnlnS has great prospects for photocatalytic water splitting to hydrogen by visible light. Herein, a novel ZnlnS-In-MOF (ZnInS) photocatalyst is elaborately synthesized by in situ method with In-MOF as the template and In as the source. ZnInS overcomes the fast interface charge recombination and a sluggish charge lifetime via the formed heterojunctions. Photoelectrochemical measurements reveal that the charge-transfer kinetics is enhanced since In-MOF is introduced to act as a reliable charge-transport channel. ZnInS exhibits outstanding cocatalyst-free H evolution rate of 70 μmol h under irradiation (λ > 420 nm), which is 3.2-fold higher than that of ZnlnS. In addition, the ZnInS photocatalyst shows good stability in the 16 h continuous reaction. This work illustrates the feasibility of the MOF precursor instead of inorganic salts to directly synthesize photocatalysts with high performance.
ZnlnS在可见光光催化水分解制氢方面具有广阔前景。在此，以In-MOF为模板、In为源，通过原位法精心合成了一种新型的ZnlnS-In-MOF（ZnInS）光催化剂。ZnInS通过形成的异质结克服了快速的界面电荷复合和缓慢的电荷寿命。光电化学测量表明，由于引入In-MOF作为可靠的电荷传输通道，电荷转移动力学得到增强。ZnInS在光照（λ>420 nm）下表现出70 μmol h的出色无共催化剂析氢速率，比ZnlnS高3.2倍。此外，ZnInS光催化剂在16小时的连续反应中表现出良好的稳定性。这项工作说明了使用MOF前驱体代替无机盐直接合成高性能光催化剂的可行性。
