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Sustainable method toward melamine-based conjugated polymer semiconductors for efficient photocatalytic hydrogen production under visible light

Abstract

The search for conjugated polymer photocatalysts for H2 production under wide-range visible light remains a key challenge. Reported herein is a conjugated polymer (i.e., melamine-terephthalaldehyde polymer (PMTPA)) derived from melamine and terephthaladehyde precursor without external solvent through Schiff-base reaction. By adjusting the polymerization temperature, PMTPA with different sample colors and band gaps were obtained, which were further applied as photocatalyst to investigate their activity for H2 evolution. Photocatalytic H2 evolution efficiency up to 58.1 umol h-1 was observed over PMTPA polymerized at 250 oC under visible light (λ > 420 nm), which was about two times as high as that of C3N4. The Schiff-base reaction without external solvent conditions provides a facile strategy for the synthesis of conjugated polymeric semiconductors with better molecular engineering for advanced applications in the fields of catalysis, energy, and environmental remediation.

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Supplementary files

Publication details

The article was received on 22 Jul 2017, accepted on 04 Dec 2017 and first published on 04 Dec 2017


Article type: Paper
DOI: 10.1039/C7GC02231J
Citation: Green Chem., 2017, Accepted Manuscript
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    Sustainable method toward melamine-based conjugated polymer semiconductors for efficient photocatalytic hydrogen production under visible light

    X. Huang, Z. Wu, H. Zheng, W. Dong and G. Wang, Green Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7GC02231J

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