Fluorescent noncovalent organic framework supported platinum nanoparticles as easy detectable, separable and recyclable heterogeneous catalyst for hydrogenation

• Key Words:GOLD NANOPARTICLES; PALLADIUM NANOPARTICLES; CELLULOSE NANOCRYSTALS; CLUSTERS
• Abstract:The development of heterogeneous metal catalysts is of great importance to the production of organic chemicals. Thus far, it is remaining a challenge to address efficient hydrogenation catalyzed by cellulose-supported metal catalysts. Herein, a heterogeneous platinum catalyst is designed by supporting platinum nanoparticles (PtNPs) onto a noncovalent organic framework (NCOF) that is fabricated from carboxymethyl cellulose and a tetraphenylethene-containing surfactant. With controlling the stoichiometric charge ratio between cellulose and surfactant, the cellulose framework gain porous morphology to promote the PtNPs-catalyzed hydrogenation of nitrobenzene and dye compounds in high efficiency. Meanwhile, the stable aggregation state of this cellulose framework leads to the reported catalyst with fluorescent property and no agglomeration of PtNPs, promoting the recycling use of catalyst. As compared to the cellulose-supported metal catalysts with covalent frameworks or in nanoscale, this NCOF-supported catalyst also gains superiorities in the catalyst synthesis and the size control of PtNPs. This work provides a new designing strategy for developing heterogeneous metal catalysts with using natural biopolymers as supporting frameworks.
• Volume:723
• Issue:
• Translation or Not:no