Effective adsorption of Congo red dye by magnetic chitosan prepared by solvent-free ball milling

Wang, Hui; Luo, Wei; Guo, Ruyao; Li, Doudou; Bai, Xue

doi:10.1016/j.matchemphys.2022.126857

Cited by 26 publications

(8 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results showed that, after six cycles, the processing capacity of the material for CR decreased to 87.1%. The decrease in efficiency may have been due to the adsorption of dyes and reaction intermediates on the surface of the material, which could not be removed via centrifugal washing [47]. This may result in the material not being able to adequately contact the dye and PMS, thus reducing the treatment efficiency.…”

Section: Resultsmentioning

confidence: 99%

Fabrication of an Fe-Doped ZIF-67 Derived Magnetic Fe/Co/C Composite for Effective Removal of Congo Red

Cao,

Dai,

Zhou

et al. 2024

Molecules

View full text Add to dashboard Cite

The dyes in printing and dyeing wastewater are harmful to the human body and the environment. It is essential to develop practical and effective adsorbents to deal with them. In this study, an Fe-doped, ZIF-67 derived Fe/Co/C composite material with strong magnetism was successfully synthesized. The effects of pH, initial concentration, and adsorption time on the properties of the adsorbent were investigated. To further improve the removal efficiency and enhance the practicality, potassium peroxymonosulfate (PMS) was added to the system due to its Fenton-like effect. Then, an Fe/Co/C composite was used with PMS to remove Congo red (CR) with a 98% removal of 250 mg·L−1. Moreover, for its high saturation magnetization of 85.4 emu∙g−1, the Fe/Co/C composite can be easily recovered by applying a magnetic field, solving the problem that powdery functional materials are difficult to recover and, thus, avoiding secondary pollution. Furthermore, since the composite material was doped before carbonization, this synthetic strategy is flexible and the required metal elements can be added at will to achieve different purposes. This study demonstrates that this Fe-doped, ZIF-67 derived magnetic material has potential application prospects for dye adsorption.

show abstract

Section: Resultsmentioning

confidence: 99%

Fabrication of an Fe-Doped ZIF-67 Derived Magnetic Fe/Co/C Composite for Effective Removal of Congo Red

Cao,

Dai,

Zhou

et al. 2024

Molecules

View full text Add to dashboard Cite

show abstract

“…The IONPs remediate dye molecules by adsorption under normal conditions, but in the presence of UV light, they act as a photocatalyst (Obaid and Halbus, 2023a;. So, during the adsorption of CR and BG dye by the IONPs, there is an involvement of numerous phenomena such as π-π stacking, electrostatic interaction, H-bonds, van der Waals forces, and coordination bonds (Kim and Choi, 2017;Litefti et al, 2019;Wang et al, 2022). There is a possibility of the involvement of a single process or a combination of processes in the adsorption of CR and BG dye molecules by the IONPs.…”

Section: Mechanism Of Bg and Cr Dye Removal By Ionpsmentioning

confidence: 99%

Phytonanofabrication of iron oxide particles from the Acacia jacquemontii plant and their potential application for the removal of brilliant green and Congo red dye from wastewater

Patel,

Desai,

Patel

et al. 2023

Front. Bioeng. Biotechnol.

View full text Add to dashboard Cite

Phytonanofabrication is one of the most promising areas that has drawn the attention of scientists worldwide due to its eco-friendly nature and biocompatibility. In the current investigation, we reported the phyto-assisted formation of iron oxide nanoparticles (IONPs) from a rare species of Acacia (Acacia jacquemontii). First, ethanolic extracts of the stem powder were analyzed by high-performance thin-layer chromatography (HPTLC) for the identification of phytochemicals in the stem sections of Acacia. Furthermore, IONPs were synthesized by a chemical co-precipitation method by using the stem extract. The phytonanofabricated iron oxide particles were investigated by UV–Vis spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), and Energy-dispersive X-ray spectroscopy (EDS) for elemental analysis. HPTLC confirmed the presence of several phenols and terpenoids in the ethanolic extracts of the stem. UV–Vis spectroscopy exhibited an absorbance peak at 380 nm, indicating the formation of IONPs, while FTIR spectroscopy showed the typical bands for Fe-O in the range of 599–1,000 cm−1 in addition to several functional groups of organic molecules at 1,596 cm−1, 2,313 cm−1, and 3,573 cm−1. XRD exhibits the amorphous nature of IONPs with peaks at 30.7, 35.5, and 62.7 nm. The IONPs were spherical-shaped, whose size varies from 10 to 70 nm, as confirmed by FESEM. EDS exhibited the presence of Fe, O, C, and NaCl. Finally, the phytonanofabricated iron oxide particles were utilized for the removal of brilliant green (BG) and Congo red (CR) dye from the aqueous solution. The removal efficiency of BG dye was up to 54.28%, while that of Congo red dye was up to 36.72% in 120 min and 60 min, respectively. Furthermore, the effect of pH and contact time was also assessed on both the dyes, where CR exhibited maximum removal at acidic pH, i.e., 47.5%, while BG showed maximum removal at pH 10, i.e., 76.59%.

show abstract

“…have all been used to study the adsorption of dyes in wastewater. 10,11 Among them, natural adsorbent materials have high adsorption capacity, low cost, renewability, and no secondary pollution advantages, [12][13][14][15] and have attracted increasing attention.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Congo Red by chitosan porous beads reinforced with epoxy resin

Huang,

Shama

2024

New J. Chem.

View full text Add to dashboard Cite

show abstract

Effective adsorption of Congo red dye by magnetic chitosan prepared by solvent-free ball milling

Cited by 26 publications

References 40 publications

Fabrication of an Fe-Doped ZIF-67 Derived Magnetic Fe/Co/C Composite for Effective Removal of Congo Red

Fabrication of an Fe-Doped ZIF-67 Derived Magnetic Fe/Co/C Composite for Effective Removal of Congo Red

Phytonanofabrication of iron oxide particles from the Acacia jacquemontii plant and their potential application for the removal of brilliant green and Congo red dye from wastewater

Adsorption of Congo Red by chitosan porous beads reinforced with epoxy resin

Contact Info

Product

Resources

About