Sunlight mediated photocatalytic degradation of organic pollutants by statistical optimization of green synthesized NiO NPs as catalyst

Selvaraj Mohana Roopan*, Ganesh Elango, D. Devi Priya, I. V. Asharani, Basker Kishore, Sharma Vinayprabhakar, Narayanan Pragatheshwaran, Kalisamy Mohanraj, R. Harshpriya, Shajahan Shanavas, Roberto Acevedo

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

In this manuscript we have prepared nickel oxide nanoparticles (NiO NPs) using Calotropis gigantea latex (CGL) through green synthesis method in which the latex acts as a capping agent. The synthesis part was optimized using RSM-BBD methodology. Further the synthesized NiO NPs were subjected to various analytical techniques like UV–Visible spectroscopy, Transmission Electron Microscope (TEM), X-ray diffractometer (XRD), Energy Dispersive Analysis (EDX), Particle Size Histogram and Zeta potential. We observed the cuboidal shape of NiO NPs with 28 ± 2 nm as average particle size. Further the synthesized NiO NPs were subjected to degrade toxic diazo dye Congo red (CR) and organic compound 4-Nitro phenol in the presence of sunlight within short duration of time. The results indicate that the NiO NPs degrades 95% of CR and 94% of nitro phenol.

Original languageEnglish
Article number111509
JournalJournal of Molecular Liquids
Volume293
DOIs
StatePublished - 2019

Bibliographical note

Publisher Copyright:
© 2019 Elsevier B.V.

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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