Yang Xu, Sun Wanjun, Li Bonan, Dong Yinjuan, Huang Xi, Hu Chunlian, Chen Mengxue, Li Yuanyuan, Ding Yong
State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China; School of New Energy and Power Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China.
J Colloid Interface Sci. 2024 Feb;655:779-788. doi: 10.1016/j.jcis.2023.11.051. Epub 2023 Nov 13.
Photocatalytic water splitting over semiconductors is an important approach to solve the energy demand of human beings. Most photocatalytic H generation reactions are conducted in the presence of sacrificial agent. However, the use of sacrificial reagents increases the cost of hydrogen generation. Realizing photocatalytic water splitting for hydrogen production without the addition of sacrificial agents is a major challenge for photocatalysts. The porphyrin MTCPPOMe and P doped MnCdS make a significant contribution in facilitating the MnCdS photocatalytic pure water splitting to H reaction. Herein, a novel MTCPPOMe/P-MnCdS (M = 2H, Fe, Co, Ni) composite catalyst which can efficiently split pure water without using sacrificial agents is developed. As a result, the H generation rate of CoTCPPOMe/P-MnCdS is as high as 2.10 μmol h, which is 9.1 and 4.2 times higher than that of MnCdS (MCS) and P-MnCdS (P-MCS), respectively. P doped MnCdS inhibits the recombination of photogenerated carriers, and introduction of MTCPPOMe as co-catalyst enhances the reduction capacity. In summary, an efficient and economical photocatalystis prepared for pure water splitting to prepare hydrogen.
半导体光催化水分解是解决人类能源需求的重要途径。大多数光催化产氢反应是在牺牲剂存在的情况下进行的。然而，牺牲试剂的使用增加了制氢成本。实现不添加牺牲剂的光催化水分解制氢是光催化剂面临的一项重大挑战。卟啉MTCPPOMe和P掺杂的MnCdS在促进MnCdS光催化纯水分解制氢反应中做出了重要贡献。在此，开发了一种新型的MTCPPOMe/P-MnCdS（M = 2H、Fe、Co、Ni）复合催化剂，该催化剂可在不使用牺牲剂的情况下高效分解纯水。结果，CoTCPPOMe/P-MnCdS的产氢速率高达2.10 μmol h，分别是MnCdS（MCS）和P-MnCdS（P-MCS）的9.1倍和4.2倍。P掺杂的MnCdS抑制了光生载流子的复合，引入MTCPPOMe作为助催化剂提高了还原能力。综上所述，制备了一种高效且经济的用于纯水分解制氢的光催化剂。
