光催化
氰胺
聚合
四唑
单体
氮化物
氮化碳
轨道能级差
碳纤维
光化学
材料科学
三聚氰胺
无机化学
氧化还原
化学
催化作用
分子
聚合物
有机化学
复合材料
图层(电子)
复合数
作者
Guigang Zhang,Minghui Liu,Tobias Heil,Spyridon Zafeiratos,Aleksandr Savateev,Markus Antonietti,Xinchen Wang
标识
DOI:10.1002/anie.201908322
摘要
Abstract Polymeric carbon nitride (PCN) is usually synthesized from nitrogen‐rich monomers such as cyanamide, melamine, and urea, but is rather disordered in many cases. Now, a new allotrope of carbon nitride with internal heterostructures was obtained by co‐condensation of very electron poor monomers (for example, 5‐amino‐tetrazole and nucleobases) in the presence of mild molten salts (for example, NaCl/KCl) to mediate the polymerization kinetics and thus modulate the local structure, charge carrier properties, and most importantly the HOMO and LUMO levels. Results reveal that the as‐prepared NaK‐PHI‐A material shows excellent photo‐redox activities because of a nanometric hetero‐structure which enhances visible light absorption and promotes charge separation in the different domains.
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