Novel photocatalytic material of organic p-n bilayer responsive to near-infrared energy
Novel photocatalytic material of organic p-n bilayer responsive to near-infrared energy
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DOI：
10.1016/j.apcatb.2016.12.071
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发表时间：
2017-05-15
影响因子：
22.1
通讯作者：
Abe, Toshiyuki
中科院分区：
文献类型：
--
作者：
Mendori, Daiki;Hiroya, Takatoshi;Abe, Toshiyuki
制备了一种由n型苝衍生物（PTCBI）和p型酞菁铅（PbPc）组成的有机p - n双层结构，并在水相中从光电极的角度对其进行了研究。PTCBI/PbPc双层结构起到光阳极的作用，由于反应物（即FeⅡ(CN)₆⁴⁻）在PbPc表面被氧化而产生光电流。此外，该有机双层还引发了光催化反应，该反应分别源于在PbPc和PTCBI处产生的氧化能力和还原能力。基于光电化学和光催化研究，已注意到PTCBI/PbPc双层能够对宽光谱的太阳能（即400 - 1100 nm）作出响应。然而，当使用无金属酞菁（H₂Pc，p型）作为参比p型层，并将其与PTCBI组合作为光催化材料应用时，所生成的PTCBI/H₂Pc双层在700 - 1200 nm的控制辐照下没有显示出任何光催化作用。因此，本研究表明，利用对近红外能量有响应的光催化材料对于高效产出产物是有效的。（C）2017爱思唯尔有限公司。保留所有权利。
An organic p-n bilayer, comprising of an n-type perylene derivative (PTCBI) and p-type lead phthalocyanine (PbPc), was prepared and examined in terms of photoelectrode in the water phase. The PTCBI/PbPc bilayer functioned as a photoanode, which generated a photocurrent due to the oxidation of reactant (i.e., Fell(CN)(6)(4-)) at the PbPc surface. Furthermore, the organo-bilayer also induced a photocatalytic reaction that originated from the oxidising and reducing powers produced at the PbPc and PTCBI, respectively. Based on the photoelectrochemical and photocatalytic studies, it has been noted that the PTCBI/PbPc bilayer can respond to the wide spectrum of solar energy (i.e., 400-1100 nm). However, on using metal free phthalocyanine (H2Pc, p-type) as a reference p-type layer and its application as a photocatalyst material in combination with PTCBI, the generated PTCBI/H2Pc bilayer did not show any photocatalysis particularly under the control irradiation of 700-1200 nm. Thus, the present work demonstrated that the utilisation of a photocatalytic material responding to near-infrared energy is effective towards efficient output into product. (C) 2017 Elsevier B.V. All rights reserved.