Nanoporous and nonporous conjugated donor–acceptor polymer semiconductors for photocatalytic hydrogen production

Beilstein Journal of Nanotechnology

article

Zhao-Qi Sheng¹  Yu-Qin Xing¹  Yan Chen¹  Guang Zhang²  Shi-Yong Liu¹  Long Chen² 

[1] College of Materials, Metallurgical and Chemistry, Jiangxi University of Science and Technology;Department of Chemistry, Tianjin University

关键词: π-conjugated polymeric photocatalysts;    donor–acceptor junctions;    nanostructure semiconductors;    photocatalytic hydrogen production;   

DOI  :  10.3762/bjnano.12.50

学科分类：环境监测和分析

来源: Beilstein - Institut zur Foerderung der Chemischen Wissenschaften

【 摘 要 】

Conjugated polymers (CPs) as photocatalysts have evoked substantial interest. Their geometries and physical (e.g., chemical andthermal stability and solubility), optical (e.g., light absorption range), and electronic properties (e.g., charge carrier mobility, redoxpotential, and exciton binding energy) can be easily tuned via structural design. In addition, they are of light weight (i.e., mainlycomposed of C, N, O, and S). To improve the photocatalytic performance of CPs and better understand the catalytic mechanisms,many strategies with respect to material design have been proposed. These include tuning the bandgap, enlarging the surface area,enabling more efficient separation of electron–hole pairs, and enhancing the charge carrier mobility. In particular, donor–acceptor(D–A) polymers were demonstrated as a promising platform to develop high-performance photocatalysts due to their easily tunablebandgaps, high charge carrier mobility, and efficient intramolecular charge transfer. In this minireview, recent advances of D–Apolymers in photocatalytic hydrogen evolution are summarized with a particular focus on modulating the optical and electronicproperties of CPs by varying the acceptor units. The challenges and prospects associated with D–A polymer-based photocatalystsare described as well.

【 授权许可】

CC BY