School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia.
Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Golm, 14424, Potsdam, Germany.
Angew Chem Int Ed Engl. 2017 Jul 10;56(29):8426-8430. doi: 10.1002/anie.201611946. Epub 2017 Mar 22.
Shape and nanostructure control has great potential to enable graphitic carbon nitride (C N ) structures with new properties and functionalities. In this work, a new type of hierarchically structured nanoporous C N is introduced. The C N 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 N 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.
形态和纳米结构控制在实现具有新性能和功能的石墨相氮化碳（C3N4）结构方面具有巨大的潜力。在这项工作中，引入了一种新型的分级结构纳米多孔 C3N4。C3N4呈现出独特的、类似雪绒花的形态，其组成部分从毫米大小的束到亚纳米厚度的层都有。采用超分子聚集体作为前驱体的一步气相-固相沉积方法来实现生长。超分子预组装通过指导蒸发和沉积过程在实现这种纳米结构方面起着至关重要的作用。此外，通过在水中对薄层进行浴式超声处理，很容易获得非常小的 C3N4量子点。本文所发展的超分子预组织生长策略可能为设计具有广泛应用于能量转换和存储的光电材料提供一种通用方法。
