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Stacking-Layer-Number Dependence of Water Adsorption in 3D Ordered Close-Packed g-C3 N4 Nanosphere Arrays for
Bo Lin1, Guidong Yang1, Lianzhou Wang2
1XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
Abstract:
Water adsorption capacity is a key factor to influence the photocatalytic H2 evolution activity of polymeric g-C3 N4 . Herein, we report the synthesis of 3D ordered close-packed g-C3 N4 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 H2 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.
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