Research Note pubs.acs.org/IECR
Cite This: Ind. Eng. Chem. Res. XXXX, XXX, XXX−XXX
Sustainable Synthesis of Ultrasmall Biogenic Platinum Nanoparticles for Selective Aqueous Phase Conversion of Glucose and Effective Hydrogen Peroxide Decomposition Premananda Singh Henam,*,† Farida Devi Heikham,† and Sylvia Devi Henam‡ †
Department of Chemistry, National Institute of Technology, Imphal-795001, India Department of Physics, National Institute of Technology, Srinagar-190006, India
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S Supporting Information *
ABSTRACT: A rational, simple convenient green aqueous methodology is described for sustainable fabrication of ultrasmall platinum nanoparticles (Pt NPs) by exploiting the phytochemicals present in M. pudica leaves extract as both a reducing agent as well as a stabilizing agent. Transmission electron microscopy analysis confirms the formation of ultrasmall spherical Pt NPs with a narrow size distribution and an average diameter of ∼1.4 nm. The ensuing Pt NPs displayed significant direct aqueous phase conversion of glucose to levulinic acid and formic acid selectively under mild conditions and a lack of auxiliaries. An increase in the yield of levulinic acid with increases in temperature was also proposed. In addition, excellent catalytic decomposition of hydrogen peroxide by the as-synthesized Pt NPs is well-ascertained. The particle demonstrates peroxidase mimicking nanozyme behavior. Our work provides an alternative podium of environmentally friendly clean energy production and a novel chemopreventive agent for biomedical purposes.
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selective conversion of glucose to levulinic acid (LA) and formic acid (FA) promoted by support-free Pt NPs, unlike other reports, which involved high temperature, ionic liquid, Lewis and Bronsted acid, complexes, nonaqueous solvents, biphasic system, and product distribution.8−14 It has been manifested that the one-pot conversion of carbohydrates to LA and FA was a fascinating, step-skipping approach.8 In addition, effective decomposition of reactive oxygen species (ROS) such as hydrogen peroxide (H2O2) by the aforementioned NPs was also investigated. For this purpose, we have rationally designed Pt NPs with an average size of
