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- Title
Green Synthesis of Palladium Nanoparticles Immobilised on Graphitic Carbon Nitride as a Sustainable Nanocatalyst for the Reduction of Nitroarenes and Removal of Fluorinated Substances.
- Authors
Sampatkumar, Harini G.; Rhakho, Novuhulu; Kandathil, Vishal; Kempasiddaiah, Manjunatha; Shirahatti, Arunkumar M.; Dateer, Ramesh B.; Samal, Akshaya K.; Patil, Siddappa A.
- Abstract
The design of more environmentally friendly nanoparticles as a catalyst for various fields is the focus of present research. As a part of our ongoing research, we have developed an environmentally friendly approach for reduction of nitroarenes, and for the removal of per- and polyfluoroalkyl substances (PFAS) from wastewater through biogenically synthesized palladium nanoparticles grafted on banana leaves extract-modified graphitic carbon nitride [PdNPs@g-C3N4-BLE] as a nanocatalyst. The synthesized nanocatalyst showed enhanced activity, greater stability and good selectivity in the reduction of various nitroarenes with the good to excellent yield in a short period of time under mild reaction conditions. Additionally, a remarkable recyclability without any significant loss of catalytic activity demonstrates nanocatalyst's heterogeneous nature. The PdNPs@g-C3N4-BLE nanocatalyst can easily hydrogenate an organic contaminant like 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) of ~ 99% conversion in 1.16 min (70 s) with fast pseudo-first order kinetics. In addition, PdNPs@g-C3N4-BLE nanocatalyst acts as an adsorbent and exhibited effective removal of a highly toxic, environmentally pervasive PFAS from wastewater through simple sorption method. An environmentally friendly approach for reduction of nitroarenes, and for the removal of per- and polyfluoroalkyl substances (PFAS) from wastewater was developed through biogenically synthesized palladium nanoparticles grafted on banana leaves extract-modified graphitic carbon nitride [PdNPs@g-C3N4-BLE] as a nanocatalyst. Further, the nanocatalyst showed enhanced activity, greater stability, and good selectivity in the reduction of various nitroarenes with the good to excellent yield under mild reaction conditions. In addition, PdNPs@g-C3N4-BLE nanocatalyst acts as an adsorbent and exhibited effective removal of a highly toxic, environmentally pervasive PFAS from wastewater through simple sorption method.
- Subjects
NANOPARTICLES; NITROAROMATIC compounds; PALLADIUM; FLUOROALKYL compounds; NITRIDES; WASTE recycling; CATALYTIC activity
- Publication
Catalysis Letters, 2024, Vol 154, Issue 2, p352
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-023-04341-y