苝
二亚胺
光催化
光化学
试剂
电场
可见光谱
材料科学
分解水
超分子化学
化学
光电子学
催化作用
物理化学
物理
有机化学
分子
量子力学
作者
Xiaoming Xu,Lei Meng,Jian Zhang,Shaogui Yang,Chao Sun,Hui Li,Junshan Li,Yongfa Zhu
标识
DOI:10.1002/anie.202308597
摘要
Abstract The co‐assembly naphthalimide/perylene diimide (NDINH/PDINH) supramolecular photocatalysts were successfully synthesized via a rapid solution dispersion method. A giant internal electric field (IEF) in co‐assembly structure was built by the larger local dipole. NDINH coated on PDINH could reduce the reflected electric field over PDINH to improve its responsive activity to ultraviolet light. Resultantly, an efficient full‐spectrum photocatalytic overall water splitting activity with H 2 and O 2 evolution rate of 317.2 and 154.8 μmol g −1 h −1 for NDINH/PDINH together with optimized O 2 evolution rate with 2.61 mmol g −1 h −1 using AgNO 3 as a sacrificial reagent were achieved. Meanwhile, its solar‐to‐hydrogen efficiency was enhanced to 0.13 %. The enhanced photocatalytic activity was primarily attributed to the IEF between NDINH and PDINH, significantly accelerating transfer and separation of photogenerated carriers. Additionally, a direct Z‐Scheme pathway of carriers contributed to a high redox potential. The strategy provided a new perspective for the design of supramolecular photocatalysts.
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