Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2014 Jun 11:12:96.
doi: 10.1186/2052-336X-12-96. eCollection 2014.

Direct dyes removal using modified magnetic ferrite nanoparticle

Niyaz Mohammad Mahmoodi  1 , Jafar Abdi  2 , Dariush Bastani  2
Affiliations

Direct dyes removal using modified magnetic ferrite nanoparticle

Niyaz Mohammad Mahmoodi et al. J Environ Health Sci Eng. .

Abstract

The magnetic adsorbent nanoparticle was modified using cationic surface active agent. Zinc ferrite nanoparticle and cetyl trimethylammonium bromide were used as an adsorbent and a surface active agent, respectively. Dye removal ability of the surface modified nanoparticle as an adsorbent was investigated. Direct Green 6 (DG6), Direct Red 31 (DR31) and Direct Red 23 (DR23) were used. The characteristics of the adsorbent were studied using Fourier transform infrared (FTIR), scanning electron microscopy (SEM) and X-ray diffraction (XRD). The effect of adsorbent dosage, initial dye concentration and salt was evaluated. In ternary system, dye removal of the adsorbent at 90, 120, 150 and 200 mg/L dye concentration was 63, 45, 30 and 23% for DR23, 97, 90, 78 and 45% for DR31 and 51, 48, 42 and 37% for DG6, respectively. It was found that dye adsorption onto the adsorbent followed Langmuir isotherm. The adsorption kinetic of dyes was found to conform to pseudo-second order kinetics.

Keywords: Adsorbent; Colored wastewater; Dye removal; Magnetic nanoparticle; Modification.

PubMed Disclaimer

Figures

Figure 1
Figure 1
FT-IR spectrum of (a) ZFN and (b) ZFN-CTAB.
Figure 2
Figure 2
SEM images (a) ZFN and (b) ZFN-CTAB.
Figure 3
Figure 3
XRD pattern (a) CTAB and (b) ZFN-CTAB.
Figure 4
Figure 4
Dye removal by ZFN (without surface modification).
Figure 5
Figure 5
The effect of adsorbent dosage on dye removal by ZFN-CTAB (a) single system and (b) ternary system (Dye concentration: 50 mg/L; pH = 7; adsorption time: 60 min).
Figure 6
Figure 6
The effect of dye concentration on dye removal by ZFN-CTAB (a) single system and (b) ternary system (adsorbent dosage = 1.6 g/L; pH = 7; adsorption time: 60 min).
Figure 7
Figure 7
The effect of pH on dye removal by ZFN-CTAB (a) single system and (b) ternary system (Dye concentration: 50 mg/L; adsorbent dosage = 1.6 g/L; adsorption time: 60 min).
Figure 8
Figure 8
The effect of salt on dye removal by ZFN-CTAB (Dye concentration: 50 mg/L; adsorbent dosage = 1.6 g/L; pH = 7).
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Ilyas S, Rehman A. Decolorization and detoxification of Synozol red HF-6BN azo dye, by Aspergillus niger and Nigrospora sp. Iran J Environ Health Sci Eng. 2013;10(1):12–12. - PMC - PubMed
    1. Singh C, Chaudhary R, Gandhi K. Preliminary study on optimization of pH, oxidant and catalyst dose for high COD content: solar parabolic trough collector. Iran J Environ Health Sci Eng. 2013;10(1):1–10. - PMC - PubMed
    1. Jafari N, Kasra-Kermanshahi R, Soudi MR, Mahvi AH, Gharavi S. Degradation of a textile reactive azo dye by a combined biological-photocatalytic process: Candida tropicalis Jks2-Tio2/Uv. Iran J Environ Health Sci Eng. 2012;9(1):1–7. - PMC - PubMed
    1. Mahmoodi NM. Nickel ferrite nanoparticle: synthesis, modification by surfactant and dye removal ability. Water Air Soil Pollut. 2013;224(2):1–11.
    1. Ambashta RD, Sillanpää M. Water purification using magnetic assistance: a review. J Hazard Mater. 2010;180(1):38–49. - PubMed

LinkOut - more resources