物理化学学报2024，Vol.40Issue(11)：41-42,2.DOI:10.3866/PKU.WHXB202406021
熔融中间体运输导向合成富氨基g-C3N4纳米片用于高效光催化产H2O2
Molten Intermediate Transportation-Oriented Synthesis of Amino-Rich g-C3N4 Nanosheets for Efficient Photocatalytic H2O2 Production
摘要
Abstract
To eliminate the additional assistance of previously reported strategies for the synthesis of g-C3N4 nanosheets such as templates,strong acids and alkalis,in this study,an innovative pattern for transportation of molten g-C3N4 intermediates,without any additional substance assistance,has been resoundingly established to produce amino-rich g-C3N4 nanosheets.The innovative pattern concretely contains the preliminary placement of melamine onto the top platform of an inverted crucible and their subsequent one-step calcination.During the calcination process,melamine and its subsequently formed g-C3N4 intermediate can transform into a molten state and gradually stream down along the outer surface of inverted crucible.This molten intermediate transportation pattern contributes to remarkably resist severe aggregation,resulting in the final polymerization into amino-rich g-C3N4 nanosheets in sequence.Moreover,the resultant amino-rich g-C3N4 nanosheets exhibit an evidently enhanced photocatalytic H2O2-production rate of ca.85.8 μmol·L-1·h-1,over 2 times superior to bulk g-C3N4,mainly due to the fact that in addition to their nanosheet structures with enhanced specific surface areas,their amino-rich structures can efficiently reinforce the adsorption of O2 and *OOH intermediates to accelerate their effective transformation into H2O2.This work delivers an innovative pattern to synthesize amino-rich g-C3N4 nanosheets with an insight into the photocatalytic mechanism.关键词
光催化/氮化碳纳米片/富氨基/中间体运输/产过氧化氢Key words
Photocatalysis/g-C3N4 nanosheets/Amino-rich/Intermediate transportation/H2O2 production分类
化学化工引用本文复制引用
陈郭强,郑子璇,钟威,王国宏,吴新鹤..熔融中间体运输导向合成富氨基g-C3N4纳米片用于高效光催化产H2O2[J].物理化学学报,2024,40(11):41-42,2.基金项目
This work was supported by the National Natural Science Foundation of China(22302061 and 22075072),Hubei Provincial Natural Science Foundation of China(2022CFC060)and the 2023 National Undergraduate Training Programs for Innovation and Entrepreneurship(202324). 国家自然科学基金(22302061,22075072) （22302061 and 22075072）
湖北省自然科学基金(2022CFC060) （2022CFC060）
2023年国家级大学生创新创业训练计划(202324)资助项目 （202324）
