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

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Abstract

The search for conjugated polymer photocatalysts for H2 production under visible light remains a key challenge. Reported herein is a conjugated polymer (i.e., melamine-terephthalaldehyde polymer (PMTPA)) derived from melamine and terephthalaldehyde precursors without an external solvent through a Schiff-base reaction. By adjusting the polymerization temperature, PMTPA with different sample colors and band gaps was obtained, which was further applied as a photocatalyst to investigate its activity in H2 evolution. A photocatalytic H2 evolution efficiency up to 58.1 μmol h−1 was observed over PMTPA polymerized at 250 °C 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.

Graphical abstract: A sustainable method toward melamine-based conjugated polymer semiconductors for efficient photocatalytic hydrogen production under visible light

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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., 2018, Advance Article
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    A 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., 2018, Advance Article , DOI: 10.1039/C7GC02231J

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