Novel magnetic nickel ferrite nanoparticles modified with poly(aniline-co-o-toluidine) for the removal of hazardous 2,4-dichlorophenol pollutant from aqueous solutions

Abstract

Chlorinated organic and phenolic compounds are still purely studied by many researchers because of their severe damage to the aquatic environment and their carcinogenic effect on many living organisms.

Influence of Lanthanum Doping on the Photocatalytic and Antibacterial Capacities of Mg0.33Ni0.33Co0.33Fe2O4 Nanoparticles

“…So, the solution's ideal pH is basic. As reported in previous studies, the point of zero charge (PZC) of MgFe 2 O 4 , NiFe 2 O 4 and CoFe 2 O 4 NPs was 8.4, 6.4 and 7.2, respectively[38][39][40]. If the pH is less than the PZC, the surface of NPs will be positively charged; when the pH is greater than the PZC, the negative form of the NPs is more likely to exist[37].…”

“…To investigate the effect of temperature, the photodegradation reaction was carried out at 313, 323, 328 and 333 K. The obtained results are displayed in Figure 8. As the [38][39][40]. If the pH is less than the PZC, the surface of NPs will be positively charged; when the pH is greater than the PZC, the negative form of the NPs is more likely to exist [37].…”

Inhibition of biofilm, quorum‐sensing, and swarming motility in pathogenic bacteria by magnetite, manganese ferrite, and nickel ferrite nanoparticles

“…[57][58][59] The band located at 3349 cm −1 could be attributed to the symmetric vibration of hydroxyl (-OH) groups, whereas bands at 1628 and 1348 cm −1 could be assigned to O-H bending vibration and asymmetric stretching mode of adsorbed carbonate. 60,61 XRD pattern further supported the successful syntheses of the MNPs and their crystallinity as shown in previously described data and showed no significant peaks of impurities. 62 The peaks, observed at 2θ = 30 , and 69 • are attributable to reflection planes (2 2 0), (3 1 1), (4 0 0), (4 2 2), (5 1 1), (4 4 0), and (5 3 3), respectively, and suggest a cubic nature of NPs.…”

“…The FTIR spectrum of the NiFe 2 O 4 np showed a band at 631 cm −1 representing the tetrahedral and octahedral sites of the spinel form 57–59 . The band located at 3349 cm −1 could be attributed to the symmetric vibration of hydroxyl (–OH) groups, whereas bands at 1628 and 1348 cm −1 could be assigned to O–H bending vibration and asymmetric stretching mode of adsorbed carbonate 60,61 …”

AB2O4 Spinel Tipi Yüksek-Entropili Oksitlerin Sentezi ve Elektrokimyasal Performansları

“…Literatürden bilindiği üzere spinel yapısına sahip malzemelerde M-O bağlarına ait absorbsiyon pikleri 600 cm -1 ' in altında yer almaktadır. Bu bölgede yer alan ve genellikle ~546 cm -1 ve ~410 cm -1 civarında bulunan iki pik sırasıyla tetrahedral ve oktahedral konumlara karşılık gelmektedir [24,25]. Tetrahedral ve oktahedral konumlar için bant pozisyonlarındaki fark M-O bağ mesafelerinden kaynaklanmaktadır.…”