The derivatisation of graphene significantly extends its application potential beyond just a highly conductive material. The introduction of sulfur based functionalities is relatively difficult and remains quite unexplored. Here, we demonstrated effective functionalization of graphene oxide with sulfur and phosphorus based functionalities by a simple one step reaction using phosphorus(v) sulfide known in organic synthesis as the Berzelius reagent. The chemistry of the starting graphene oxide significantly influenced the degree of functionalization. A detailed chemical analysis of the modified graphene showed the presence of various sulfur based functional groups as well as thiophosphate derivatisation. The resulting graphene highly functionalized with thiol based groups proved to be an effective immobilizer for gold nanoparticles.
Bibliographical noteFunding Information:
This work was supported by the Czech Science Foundation (GACR no. 16-05167S) and by specific university research (MSMT no. 20-SVV/2018). O. Jankovsk´y would also like to greatly acknowledge the Alexander von Humboldt Foundation and the Federal Ministry for Education and Research, Germany
for their support. This work was supported by the project Advanced Functional Nanorobots (reg. no. CZ.02.1.01/0.0/0.0/ 15_003/0000444 financed by the EFRR). This work was created with the financial support of the Neuron Foundation for science support.
All Science Journal Classification (ASJC) codes
- Materials Chemistry