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Updated: Aug 28, 2025
A Salt-Templated Synthesis Method for Porous Platinum-based Macrobeams and Macrotubes
Published on: May 18, 2020
Rapid synthesis of ultrasmall platinum nanoparticles supported on macroporous cellulose fibers for catalysis
Md Tariqul Islam1,2, Jose A Rosales1, Ricardo Saenz-Arana1
1Department of Chemistry and Biochemistry, University of Texas at El Paso, 500 West University Avenue El Paso TX 79968 USA mtislam@miners.utep.edu tariqul.lab@gmail.com jcnoveron@utep.edu.
Abstract:
Herein, we report a facile method for the synthesis of platinum nanoparticles (PtNPs) about 2.25 nm in size by heating a solution of chloroplatinic acid and sodium rhodizonate. The PtNPs were synthesized in about 5 min. The PtNPs were supported on macroporous cellulose fibers that were obtained from Kimwipe paper (KWP). The cellulose fiber-supported PtNPs (PtNPs@KWP) exhibited excellent catalytic activity towards the reduction of organic pollutants [e.g. methyl orange (MO)] in the presence of hydrogen (H2) gas and formic acid (FA). FA and H2 gas were utilized as clean and alternative reducing agents. The reduction of MO was performed in two different types of water matrices viz. deionized water (DIW) and simulated fresh drinking water (FDW). In both water matrices, the FA mediated reduction of MO was found to be faster than the H2 gas-bubbled one. The PtNPs@KWP demonstrated excellent cycling stability without leaching the PtNPs or platinum ions into the solution for at least five cycles.
