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Iron nanoparticles were formed during the reaction of fruit extract and leached laterite solution and were confirmed with SEM, XRD, and EDS analysis (Devatha et al. 2016; Sangami & Manu 2017). The iron particles formed were seen as spherical particles on SEM images and their size was observed to be 100–200 nm. EDS data show us three peaks corresponding to iron (Figure 1(b)) and reveal that the nanoparticles formed contain iron at 12.28% by weight composition as shown in Table 1.
Table 1

Chemical composition of BLaFeNCs

Element Fe Cu 
Weight % 7.10 18.92 2.02 12.28 0.08 0.08 
Element Fe Cu 
Weight % 7.10 18.92 2.02 12.28 0.08 0.08 
Table 2

Overview of Fenton's oxidation of selective dyes in water

Target compoundOperating parameter
Degradation (%)COD removal (%)Rate constant k (min−1)Regression R2
BLaFeNCs (g/L)H2O2 Dosage (mg/L)
Methylene blue 0.5 500 93.6 87.6 0.0236 0.9177 
Rhodamine B 0.5 1000 91.3 81.5 0.0200 0.9224 
Target compoundOperating parameter
Degradation (%)COD removal (%)Rate constant k (min−1)Regression R2
BLaFeNCs (g/L)H2O2 Dosage (mg/L)
Methylene blue 0.5 500 93.6 87.6 0.0236 0.9177 
Rhodamine B 0.5 1000 91.3 81.5 0.0200 0.9224 
Figure 1

Scanning electron microscopic and EDS images of BLaNFeCs showing the morphological appearance and elemental composition of synthesized nanoparticles.

Figure 1

Scanning electron microscopic and EDS images of BLaNFeCs showing the morphological appearance and elemental composition of synthesized nanoparticles.

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