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Stacking‐Layer‐Number Dependence of Water Adsorption in 3D Ordered Close‐Packed g‐C 3 N 4 Nanosphere Arrays for Photocatalytic Hydrogen Evolution
Author(s) -
Lin Bo,
Yang Guidong,
Wang Lianzhou
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201814360
Subject(s) - stacking , adsorption , materials science , chemical engineering , photocatalysis , layer (electronics) , chemical physics , nanotechnology , chemistry , organic chemistry , catalysis , engineering
Water adsorption capacity is a key factor to influence the photocatalytic H 2 evolution activity of polymeric g‐C 3 N 4 . Herein, we report the synthesis of 3D ordered close‐packed g‐C 3 N 4 nanosphere arrays (CNAs) that significantly enhance the water adsorption capacity. Through precisely controlling the average stacking‐layer number (ASLN) of the nanospheres in CNAs, we reveal an interesting stacking‐layer‐number dependence of water adsorption in the newly designed CNAs for accelerating the H 2 evolution reaction, which can be attributed to the differences in adsorption surface areas and adsorption sites endowed by the point‐defect cavities in sample CNAs.