Chlorophyll derivative sensitized monolayer Ti3C2Tx MXene nanosheets for photocatalytic hydrogen evolution

被引:11
|
作者
Li, Yuanlin [1 ,2 ]
Liu, Yanxiang [1 ,2 ]
Zheng, Tianfang [1 ,2 ]
Sasaki, Shin-ichi [3 ,4 ]
Tamiaki, Hitoshi [3 ]
Wang, Xiao-Feng [1 ,2 ]
机构
[1] Jilin Univ, Key Lab Phys & Technol Adv Batteries, Minist Educ, Coll Phys, Changchun 130012, Peoples R China
[2] Jilin Univ, Coll Phys, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
[3] Ritsumeikan Univ, Grad Sch Life Sci, Kusatsu, Shiga 5258577, Japan
[4] Nagahama Inst Biosci & Technol, Nagahama, Shiga 5260829, Japan
基金
中国国家自然科学基金; 日本学术振兴会;
关键词
Photochemistry; Biomaterials; Chlorophyll materials; Monolayer Ti 3 C 2 T x MXene; Hydrogen evolution reaction; Z-SCHEME; PERFORMANCE; ZINC; CONSTRUCTION; NANOCRYSTALS; COMPOSITES; GROWTH; GREEN; DYE;
D O I
10.1016/j.jphotochem.2022.113792
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Hydrogen production by photocatalytically splitting water is considered as a promising strategy for solar to chemical energy conversion to solve global energy problems. Ti3C2Tx is a two-dimensional transition metal titanium carbide material with excellent electrochemical properties. Nevertheless, the application of Ti3C2Tx as a co-catalyst in photocatalysis presents many challenges, which is mainly due to its lower photocatalytic activity. In this work, monolayer Ti3C2Tx nanosheets were prepared as efficient co-catalysts for the photocatalytic water splitting for H2 evolution through the delamination and exfoliation process of pristine two-dimensional titanium carbide Ti3C2Tx MXene. In addition, a chlorophyll-a derivative (Chl) was used as an effective visible light harvester by a simple one-step deposition process on monolayer Ti3C2Tx nanosheets, and a novel noble metal-free Chl@monolayer Ti3C2Tx photocatalyst was successfully synthesized for the photocatalytic water splitting to hydrogen evolution reaction (HER). It was found that the optimal Chl@monolayer Ti3C2Tx composite had the best HER performance as high as 106 mu mol/h/gcat, which was much higher than that of the pristine Chl@Ti3C2Tx composite.
引用
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页数:9
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