Donor-Acceptor Type Triazine-Based Conjugated Porous Polymerfor Visiblelight-Driven Photocatalytic Hydrogen Evolution

摘要

Environmental pollution and energy shortage have received ever increasing attentionduring the past few decades,for the useness of fossil fuels has brought seriousenvironmental contamination,greenhouse effect and other issues.Photocatalytic watersplitting as a clean and sustainable energy infrastructure can ultimately decarbonize ourfossil-fuel based energy economics.Since the research of the graphitic carbon nitride(g-C3N4) in 2009,organic semiconductor photocatalysts are widely researched anddeveloped.Conjugated porous polymers (CPPs) are an emerging class of promisingphotocatalysts because of their large conjugated systems,large specific surface areas andadjustable optical band gaps.3 Herein,we designed and synthesized different donor-acceptortype triazine-based conjugated porous polymers P1 and P2 through linking the samepyrazole donor and different light-absorbing acceptors by triazine unit via a simple,efficient,metal-free catalyzed approach,aiming to illustrate the relationship between structure andperformance.