title: Highly Efficient Organic Photocatalyst with Full Visible Light Spectrum through π-π Stacking of TCNQ-PTCDI.
abstract: Self-assembled TCNQ-PTCDI composite photocatalysts can not only degrade phenol at a rate of 0.154 h-1, which is 10.4 times higher than that of pure PTCDI, but also produce oxygen at a rate of ∼14 μmol·g-1·h-1without cocatalysts. The π-π interactions between TCNQ and PTCDI result in fast transfer of carriers and reduced carrier recombination. The interaction lowers the valence band and narrows the band gap, thus leading to a stronger oxidizability and a broad spectral response (∼730 nm). Moreover, the presence of TCNQ stabilizes the composite to decrease the accumulation of negative charge, which results in an excellent stability of the composite. The high catalytic activity can potentially be utilized in the fields of environmental and energy applications.
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China.
authors.forename: Zijian
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China.
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.affiliation: School of Chemical & Environmental Engineering, China University of Mining &Technology , Beijing 100083, P. R. China.
authors.forename: Di
authors.initials: D
authors.lastname: Liu
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China.
authors.forename: Wenjiao
authors.initials: W
authors.lastname: Luo
authors.affiliation: Department of Biophysics and Structural Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & School of Basic Medicine, Peking Union Medical College , Beijing 100005, P. R. China.
authors.forename: Mo
authors.initials: M
authors.lastname: Zhang
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China.
authors.forename: Wenjun
authors.initials: W
authors.lastname: Jiang
authors.affiliation: Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China.
authors.forename: Yongfa
authors.initials: Y
authors.lastname: Zhu
keywords: photocatalysis; pollutants degradation; self-assembly; visible light; water oxidation