Pyridyl-Anchored Type BODIPY Sensitizer-TiO2 Photocatalyst for Enhanced Visible Light-Driven Photocatalytic Hydrogen Production
Pyridyl-Anchored Type BODIPY Sensitizer-TiO2 Photocatalyst for Enhanced Visible Light-Driven Photocatalytic Hydrogen Production
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DOI：
10.3390/catal10050535
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发表时间：
2020-05-01
期刊：
影响因子：
3.9
通讯作者：
Ishihara, Tatsumi
中科院分区：
文献类型：
--
作者：
Shen, Xiao-Feng;Watanabe, Motonori;Ishihara, Tatsumi
研究了在锚位上具有吡啶基的硼-二吡咯亚甲基（BODIPY）有机材料的染料敏化光催化制氢。将苯基、咔唑和吩噻嗪衍生物引入到BODIPY染料中，考察了它们的光催化活性。通过核磁共振（NMR）、红外（IR）、质谱（MS）和吸收光谱进行鉴定，并通过使用可见光照射和光催化制氢和光电流进行催化剂评价。这些染料在600-700 nm处有很强的吸收，表明它们是有前途的光敏剂。当检查光催化活性时，显示稳定的催化性能，并且负载具有咔唑基团的染料的Pt-TiO（2）光催化剂的活性为249 μ mol/g（cat）中心点h。光电流测量表明，染料敏化的光催化活性发生。该结果表明，具有吡啶基作为锚位点的BODIPY有机材料可用作新型染料敏化光催化剂。
Dye-sensitized photocatalytic hydrogen production using a boron-dipyrromethene (BODIPY) organic material having a pyridyl group at the anchor site was investigated. Phenyl, carbazole, and phenothiazine derivatives were introduced into BODIPY dyes, and their photocatalytic activities were examined. Identification was performed by nuclear magnetic resonance (NMR), infrared (IR), mass (MS) spectra, and absorption spectra, and catalyst evaluation was performed by using visible-light irradiation and photocatalytic hydrogen production and photocurrent. These dyes have strong absorption at 600-700 nm, suggesting that they are promising as photosensitizers. When the photocatalytic activity was examined, stable catalytic performance was demonstrated, and the activity of the Pt-TiO(2)photocatalyst carrying a dye having a carbazole group was 249 mu mol/g(cat)center dot h. Photocurrent measurements suggest that dye-sensitized photocatalytic activity is occurring. This result suggests that BODIPY organic materials with pyridyl groups as anchor sites are useful as novel dye-sensitized photocatalysts.