Oct 2026· ACS Applied Polymer Materials· 0 citations· 36 references
Abstract
Organic polymers featuring donor−acceptor (D-A) molecular structures are promising photocatalysts for solar-driven H2 production. Unfortunately, most D-A-type polymeric photocatalysts still suffer from sluggish charge dynamics and deficient active sites. Herein, two organic porous polymers with different molecular structures are reported using triazine ring (Tz, A1) and dithieno[3,2-b:2′,3′-d]thiophene-S,S-dioxide (DTDO, A2) as acceptors. Compared to TPH-DTDO with the D-A structure, TTZ-DTDO possesses an extra charge transfer channel, more active sites, and stronger charge separation ability due to its A1-D-A2 structure, achieving the dual regulation of charge dynamics and active sites. These advantages enable TTZ-DTDO to realize an excellent H2 generation rate of 21.15 mmol h−1 g−1 under full arc light (320 nm < λ < 780 nm), which is approximately 5.5 times higher than that of TPH-DTDO (3.83 mmol h−1 g−1), demonstrating the positive influence of the A1-D-A2 molecular design on upgrading the photocatalytic efficiency of organic polymers.
Hydrogen peroxide (H2O2), as a green oxidant and an emerging energy carrier, has attracted considerable attention for its photocatalytic synthesis. Covalent organic frameworks (COFs) have emerged as ideal photocatalyst platforms owing to their structurally designable nature and tunable optoelectronic properties. In par...
Jing Liang, Yi-Qiang Bai, Zheng-Yin Yan et al.· Catalysts· 0 citations
Efficient and durable hydrogen evolution with PDI-based organic supramolecular photocatalysts remains limited by insufficient surface-active sites, structural instability and inefficient charge utilization. Here, we design a bioinspired polydopamine (PDA)-mediated interface to construct a PDA-coated PDI-COOH (PDI-COOH@...
Li Yang, Hai-Jun Yang, Di Liu et al.· Small Methods· 0 citations
Conjugated polymers featuring donor–acceptor (D-A) architectures have emerged as promising candidates for visible-light-driven hydrogen evolution, owing to their tunable optoelectronic properties. However, achieving high photocatalytic activity without noble-metal cocatalysts remains challenging. Herein, we report a se...
Solar-driven green photocatalytic H2O2 production is a potent breakthrough technology, especially with advanced porous materials. However, the design of porous-material-based superior photocatalysts with high inherent charge separation and ORR selectivity is very challenging. In this direction, we present a rationally...
Gourab K. Dam, Sumanta Let, Vartika Jaiswal et al.· Materials Horizons· 0 citations
Photocatalytic hydrogen (H
2
) production systems still heavily rely on noble metal‐based cocatalysts to lower the reaction energy barrier and capture electrons for proton reduction. But the adoption of metal during photocatalysis could significantly increase the cost and therefore hinder the further practical ap...
