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Stabilization of zero-valent CuNi nanoparticles (NPs) supported on  Cicerarietenum  (CP) is reported here for the reduction and removal ofpersistent organic pollutants. The functional groups and interactions of NPs with theCP were determined by ATR-FTIR. The crystallinity, morphology, and the elementalcomposition of the samples were determined through powder XRD, FESEM, and EDStechniques, respectively. The XRD spectrum displayed a sharp crystalline peak at 43.9for CuNi. The Cu and Ni zero-valent NPs displayed a peak at almost the same region,and thus, both the peaks are merged and appeared as a single peak. The chemicalreduction/degradation of eight model pollutants, viz., 2-nitrophenol (ONP),3-nitrophenol (MNP), 4-nitrophenol (PNP), 2,4-dinitrophenol (DNP), methyl orange(MO), congo red (CR), methylene blue (MB), and rhodamine B (RB) were carried out inthe presence of NaBH 4 . The  k  app  value of 0.1 mM 4NP was highest which was 1.8 ×10 −1  min −1  while the slowest rate was observedfor CR and RB with  k  app  5.5 × 10 −3  and 5.4 ×10 −3  min −1  respectively. This article helps inthe removal of toxic organic pollutants through green supported NPs.

green processing and synthesis

Synthesis of biomass-supported CuNi zero-valent nanoparticles through                wetness co-impregnation method for the removal of carcinogenic dyes and                nitroarene