Ultra-small UiO-66-NH2 nanoparticles immobilized on g-C3N4 nanosheets for enhanced catalytic activity

Green Energy & Environment

Fanyu Zhang¹  Dongxing Tan¹  Bingxing Zhang¹  Jianling Zhang¹  Lifei Liu¹  Xiuniang Tan²  Xiuyan Cheng²  Qiang Wan²  Lirong Zheng²  Zhuizhui Su² 

[1] School of Chemical Sciences, University of Chinese Academy of Sciences, Physical Science Laboratory, Huairou National Comprehensive, Science Center, Beijing, 100190, China;Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China;

关键词: UiO-66-NH2;    g-C3N4;    Unsaturated coordination positions;    Lewis acidity;    Meerwein–Ponndorf–Verley reaction;   

DOI  :  

来源: DOAJ

【 摘 要 】

UiO-66-NH2, an important metal–organic framework, is usually synthesized by solvothermal method and the particle size is generally larger than 200 nm, which limits its catalytic applications in chemical reactions. It is very meaningful to produce UiO-66-NH2 nanoparticles with ultra-small size, but remains challenging. Herein, we synthesized UiO-66-NH2 nanoparticles in size of 8–15 nm that are immobilized on g-C3N4 nanosheets. Compared with the UiO-66-NH2 synthesized by the traditional solvothermal method (> 200 nm), the ultra-small UiO-66-NH2 nanoparticles immobilized on g-C3N4 have more unsaturated coordination positions and increased Lewis acidity. Owing to these combined advantages, the ultra-small UiO-66-NH2 nanoparticles exhibit greatly improved catalytic activity for Meerwein–Ponndorf–Verley reaction than larger UiO-66-NH2 particles.

【 授权许可】

Unknown