晶面空间分离型聚三嗪亚胺基氮化碳纳米球用于光催化全分解水研究  

Poly(triazine imide)nanospheres with spatially exposed prismatic facets for photocatalytic overall water splitting

作　　者：郑丹丹 王乾 潘志明 汪思波 侯乙东 张贵刚 Dandan Zheng;Qian Wang;Zhiming Pan;Sibo Wang;Yidong Hou;Guigang Zhang(College of Environment and Safety Engineering,Fuzhou University,Fuzhou 350108,China;State Key Laboratory of Photocatalysis on Energy and Environment,College of Chemistry,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]College of Environment and Safety Engineering,Fuzhou University,Fuzhou 350108,China [2]State Key Laboratory of Photocatalysis on Energy and Environment,College of Chemistry,Fuzhou University,Fuzhou 350108,China

出　　处：《Science China Materials》2024年第6期1900-1906,共7页中国科学（材料科学）（英文版）

基　　金：financially supported by the National Key R&D Program of China (2021YFA1502100);the National Natural Science Foundation of China (22172029 and 22002016);the Science Foundation of Fujian Province (2022L3084)。

摘　　要：通过传统熔盐法合成的聚三嗪亚胺(PTI)其六棱柱晶体倾向于沿熔盐模板生长为聚晶形态,这使得其侧面活性面难以充分暴露.在本文中,我们通过耦合熔盐法和硬模板法制备得到了具有高结晶性和侧面暴露的PTI纳米球.研究表明,熔点合适的LiCl/NaCl二元熔盐促进了高结晶六棱柱的形成,此外,三维模板使六棱柱能够沿空间分离方向定向生长.优化后的PTI显示出具有完全扩展的π共轭聚合结构,且具有空间暴露更完全的活性晶面.因此,制备得到的PTI纳米球光催化全分解水性能得到显著提升.Polymeric carbon nitride(PCN),which benefits from appro-priate band structures that satisfy the requirements for overall water splitting(OWS),holds immense promise for sustainable solar hydrogen production[1-3].Carbon nitrides are invariably formed through triazine or heptazine building units,such as heptazine-based melon,poly(heptazine imide),and triazine-based poly(triazine imide)(PTI)[4-6].

关 键 词：碳纳米球 光催化 硬模板法 定向生长 熔盐法 高结晶性 空间分离 亚胺基 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] TB383.1[一般工业技术—材料科学与工程]