Catalytic degradability of p-nitrophenol using ecofriendly silver nanoparticles

Ganesh Shimoga, Ramasubba Reddy Palem, Soo Hong Lee, Sang Youn Kim

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

In an effort to produce non-toxic and economically viable “green” protocols for waste water treatment, researchers are actively involved to develop versatile and effective silver nanoparticles (SNPs) as nano-catalyst from bio-based techniques. Since, p-nitrophenol (PNP) is one of the anthropogenic contaminants, considerable attention has been focused in catalytic degradability of PNP in wastewater treatment by curtailing serious effect on aquatic fauna. Ingestion of contaminants by aquatic organisms will not only affect the aquatic species but is also a potential threat to human health, especially if the toxic contaminants are involved in food chain. In this short report, we provided a comprehensive insight on few remarkable nanocatalysts especially based on SNPs and its biopolymer composites synthesized via ecofriendly “green” route. The beneficiality and catalytic performance of these silver nanocatalysts are concisely documented on standard model degradation reduction of PNP to p-aminophenol (PAP) in the presence of aqueous sodium borohydride. The catalytic degradation of PNP to PAP using SNPs follows pseudo first order kinetics involving six-electrons with lower activation energy. Furthermore, we provided a list of highly effective, recoverable, and economically viable SNPs, which demonstrated its potential as nanocatalysts by focusing its technical impact in the area of water remediation.

Original languageEnglish
Article number1661
Pages (from-to)1-20
Number of pages20
JournalMetals
Volume10
Issue number12
DOIs
StatePublished - Dec 2020

Keywords

  • Anthropogenic
  • Bioreductant
  • Environmental remediation
  • Heterogeneous catalysis
  • P-nitrophenol
  • Plant extract
  • Silver nanoparticles

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