Photocatalytic hydrogen evolution on dye-sensitized mesoporous carbon nitride photocatalyst with magnesium phthalocyanine
文献信息
Kazuhiro Takanabe, Kumiko Kamata, Markus Antonietti, Jun Kubota, Kazunari Domen
Spectral sensitization of a mesoporous graphite carbon nitride (mpg-C3N4) photocatalyst was investigated by depositing magnesium phthalocyanine (MgPc) to expand the absorption to wavelengths longer than those of the principal mpg-C3N4. The obtained sample, MgPc/Pt/mpg-C3N4 (Pt as a cocatalyst) showed stable photocatalytic evolution of hydrogen from aqueous solution in the presence of sacrificial reagents (triethanolamine), even under irradiation at wavelengths longer than 600 nm. Increasing the amount of MgPc led to ordered MgPc aggregation on the photocatalyst surfaces. The rate of photocatalytic hydrogen evolution was highest on a sample with an amount of MgPc corresponding to a monolayer on the Pt/mpg-C3N4 photocatalyst surface. The obtained action spectra of hydrogen evolution and the observation that the amount of evolved hydrogen substantially surpassed the amount of MgPc, confirm that the introduced MgPc functioned as a photocatalytic sensitizer.
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来源期刊
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










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