Biohybrid Organic Heterostructure Based on Chlorophyll‐Bacteriochlorophyll Aggregates for Ecofriendly Hydrogen Production
Biohybrid Organic Heterostructure Based on Chlorophyll‐Bacteriochlorophyll Aggregates for Ecofriendly Hydrogen Production
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基于叶绿素-细菌叶绿素聚集体的生物杂化有机异质结构用于环保制氢
DOI：
10.1002/chem.202201855
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Wang Xiao‐Feng
中科院分区：
文献类型：
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作者：
Li Yuanlin;Zheng Tianfang;Liu Yanxiang;Levchenko Georgiy G.;Han Wei;Pashchenko Aleksey V.;Sasaki Shin‐ichi;Tamiaki Hitoshi;Wang Xiao‐Feng
氢能是一种丰富、清洁、可持续、环保的可再生能源。因此，近年来，通过在半导体上光催化分解水来生产氢气被认为是将太阳能转化为化学能以取代常规能源并解决日益严重的环境污染问题和全球能源危机的有前景的和可持续的策略。然而，高效的太阳能驱动的光催化制氢仍然是一个巨大的挑战，因为可用的光催化材料的可见光响应差，以及光生电子-空穴对的分离和转移效率低。在目前的工作中，引入了基于细菌叶绿素（BChl）和叶绿素（Chl）分子的有机异质结结构，并用于可见光下太阳能驱动的光催化制氢。此外，通过简单的Chl和BChl的连续沉积，在Ti 3C 2 Tx纳米片上成功地构建了无贵金属的光催化剂，其用于光催化分解水至析氢反应（HER）。结果表明，优化后的BChl@Chl@Ti3C2Tx复合材料具有较高的HER性能，其HER性能为114 μmol/h/gcat，远高于BChl@Ti3C2Tx和Chl@Ti3C2Tx复合材料。
Hydrogen energy is an abundant, clean, sustainable and environmentally friendly renewable energy source. Therefore, the production of hydrogen by photocatalytically splitting water on semiconductors has been considered in recent years as a promising and sustainable strategy for converting solar energy into chemical energy to replace conventional energy sources and to solve the growing problem of environmental pollution and the global energy crisis. However, highly efficient solar‐driven photocatalytic hydrogen production remains a huge challenge due to the poor visible light response of available photocatalytic materials and the low efficiency of separation and transfer of photogenerated electron‐hole pairs. In the present work, organic heterojunction structures based on bacteriochlorophyll (BChl) and chlorophyll (Chl) molecules were introduced and used for solar‐driven photocatalytic hydrogen production from water under visible light. Also, noble metal‐free photocatalyst was successfully constructed on Ti3C2Txnanosheets by simple successive deposition of Chl and BChl, which was used for the photocatalytic splitting water to hydrogen evolution reaction (HER). The results show that the optimal BChl@Chl@Ti3C2Txcomposite has a high HER performance with 114 μmol/h/gcat, which is much higher than the BChl@Ti3C2Txand Chl@Ti3C2Txcomposites.