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From Millimeter to Subnanometer: Vapor–Solid Deposition of Carbon Nitride Hierarchical Nanostructures Directed by Supramolecular Assembly
Author(s) -
Xu Jingsan,
Wang Hong,
Zhang Chao,
Yang Xiaofei,
Cao Shaowen,
Yu Jiaguo,
Shalom Menny
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201611946
Subject(s) - nanostructure , chemical vapor deposition , materials science , nanotechnology , supramolecular chemistry , nanoporous , nitride , carbon nitride , graphitic carbon nitride , carbon fibers , deposition (geology) , thin film , chemistry , molecule , layer (electronics) , organic chemistry , photocatalysis , catalysis , paleontology , sediment , biology , composite number , composite material
Abstract Shape and nanostructure control has great potential to enable graphitic carbon nitride (C 3 N 4 ) structures with new properties and functionalities. In this work, a new type of hierarchically structured nanoporous C 3 N 4 is introduced. The C 3 N 4 exhibits unique, edelweiss‐like morphology, with components ranging from millimeter‐sized bunches to subnanometer‐thick layers. A one‐step vapor–solid deposition approach using supramolecular aggregates as the precursor is carried out to accomplish the growth. Supramolecular pre‐association plays a crucial role in achieving this nanostructure by directing the vaporization and deposition processes. Furthermore, very small C 3 N 4 quantum dots can be readily acquired by bath sonication of the thin layers in water. The supramolecular preorganization growth strategy developed herein may provide a general methodology in the design of advanced photoelectric materials with broad applications in energy conversion and storage.