Dyes Adsorption Behavior of Fe3O4 Nanoparticles Functionalized Polyoxometalate Hybrid

Li, Jie; Chen, Si; Zhao, Haiyan; Meng, Qingxi; Chang, Bowen; Li, Mingxue; Liu, Hongling

doi:10.3390/molecules24173128

Cited by 10 publications

(6 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 showed a selective adsorption capacity for the methylene blue (MB), gentian violet (GV), and BF dyes, with removal ratios of 46.6%, 69%, and 90.1% ( Figure S4B ), respectively. However, the removal ratio of methyl orange (MO) was close to 0, which is consistent with the result of MO dye removal in a previous report [ 42 , 43 ]. As a result, 1 can efficiently and selectively remove cationic dyes from wastewater.…”

Section: Resultssupporting

confidence: 91%

“…Therefore, the index of the reactive oxygen species (ROS) content was determined by the production of blue-violet formaldehyde [ 50 , 51 , 52 ]. According to the previous literature, a high ROS content can lead to oxidative stress in bacteria cells [ 6 , 43 ], resulting in disruption of the bacterial cell membrane, intracellular substances, and so on. 1 induced an obviously higher level of ROS production than the control group ( Figure 9 B).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

A Nickel-Containing Polyoxomolybdate as an Efficient Antibacterial Agent for Water Treatment

Chang

et al. 2022

IJMS

Self Cite

View full text Add to dashboard Cite

In view of the water pollution issues caused by pathogenic microorganisms and harmful organic contaminants, nontoxic, environmentally friendly, and efficient antimicrobial agents are urgently required. Herein, a nickel-based Keggin polyoxomolybdate [Ni(L)(HL)]2H[PMo12O40] 4H2O (1, HL = 2-acetylpyrazine thiosemicarbazone) was prepared via a facile hydrothermal method and successfully characterized. Compound 1 exhibited high stability in a wide range of pH values from 4 to 10. 1 demonstrated significant antibacterial activity, with minimum inhibitory concentration (MIC) values in the range of 0.0019–0.2400 µg/mL against four types of bacteria, including Staphylococcus aureus (S. aureus), Bacillus subtilis (B. subtilis), Escherichia coli (E. coli), and Agrobacterium tumefaciens (A. tumefaciens). Further time-kill studies indicated that 1 killed almost all (99.9%) of E. coli and S. aureus. Meanwhile, the possible antibacterial mechanism was explored, and the results indicate that the antibacterial properties of 1 originate from the synergistic effect between [Ni(L)(HL)]+ and [PMo12O40]3−. In addition, 1 presented effective adsorption of basic fuchsin (BF) dyes. The kinetic data fitted a pseudo-second-order kinetic model well, and the maximum adsorption efficiency for the BF dyes (29.81 mg/g) was determined by the data fit of the Freundlich isotherm model. The results show that BF adsorption was dominated by both chemical adsorption and multilayer adsorption. This work provides evidence that 1 has potential to effectively remove dyes and pathogenic bacteria from wastewater.

show abstract

Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

A Nickel-Containing Polyoxomolybdate as an Efficient Antibacterial Agent for Water Treatment

Chang

et al. 2022

IJMS

Self Cite

View full text Add to dashboard Cite

show abstract

“…Further study involving magnetic nanohybrid containing Strandberg-type [P 2 Mo 5 O 23 ] 6− anion and [Ni(HL) 2 ] 2+ to form 3D networks was employed for the adsorption of different dyes. 65 The nanohybrid showed a maximum adsorption capacity of 41.91 mg g −1 toward MB, and the adsorption isotherm data fitted well to the Langmuir isotherm model. Moreover, the adsorption kinetics data followed a pseudo-second-order kinetic model, indicating chemisorption process.…”

Section: Pom−ionic Liquid Hybridsmentioning

confidence: 59%

“…Moreover, the reusability of adsorbents Fe 3 O 4 @ 1 and Fe 3 O 4 @ 2 were examined toward MB after seven runs, and a reduction of 3.73% and 3.5% in the adsorption efficiency were recorded for Fe 3 O 4 @ 1 and for Fe 3 O 4 @ 2 , respectively. Further study involving magnetic nanohybrid containing Strandberg-type [P 2 Mo 5 O 23 ] 6– anion and [Ni(HL) 2 ] 2+ to form 3D networks was employed for the adsorption of different dyes . The nanohybrid showed a maximum adsorption capacity of 41.91 mg g –1 toward MB, and the adsorption isotherm data fitted well to the Langmuir isotherm model.…”

Section: Removal Of Organic Dyes Using Polyoxometalate-based Materialsmentioning

confidence: 90%

Polyoxometalate-Based Materials for the Removal of Contaminants from Wastewater: A Review

D’Cruz

Amin

Al‐Hetlani

2021

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Water pollution from the continuous disposal of hazardous substances has become a serious issue and a global concern for the environment and public health. Removal of these pollutants from water is an ongoing challenge, and several approaches have been proposed and applied for this purpose. Adsorption is one of the common and most efficient approaches often used because it is simple, quick processing, inexpensive, and eco-friendly. Polyoxometalates (POMs) are a well-known class of metal–oxygen cluster compounds with tunable structure and size and highly electronegative and oxo-enriched surfaces. Owing to their electronic and physical properties, they have attracted considerable attention in the field of pollutants removal from wastewater. This review discusses the advances made over the last 10 years in the removal of toxic pollutants from wastewater using POMs-based materials. Furthermore, we summarize the recent synthetic strategies used to modify POMs-based materials and their applications in adsorption of pollutants. Knowledge gaps and current challenges in this research area are also discussed to support the development prospect of these materials for industrial use.

show abstract

“…Regeneration and recycling are of important significance for the application of any sorbent in the treatment of real water samples [ 64 , 65 ]. After each adsorption cycle of Pb 2+ ions over the Fe 3 O 4 /N@C nanocomposite, 1.0 M HCl was used as an eluent for the effective desorption of metallic ions.…”

Section: Resultsmentioning

confidence: 99%

Magnetic Nitrogen-Doped Porous Carbon Nanocomposite for Pb(II) Adsorption from Aqueous Solution

et al. 2021

View full text Add to dashboard Cite

We report in the present study the in situ formation of magnetic nanoparticles (Fe3O4 or Fe) within porous N-doped carbon (Fe3O4/N@C) via simple impregnation, polymerization, and calcination sequentially. The synthesized nanocomposite structural properties were investigated using different techniques showing its good construction. The formed nanocomposite showed a saturation magnetization (Ms) of 23.0 emu g−1 due to the implanted magnetic nanoparticles and high surface area from the porous N-doped carbon. The nanocomposite was formed as graphite-type layers. The well-synthesized nanocomposite showed a high adsorption affinity toward Pb2+ toxic ions. The nanosorbent showed a maximum adsorption capacity of 250.0 mg/g toward the Pb2+ metallic ions at pH of 5.5, initial Pb2+ concentration of 180.0 mg/L, and room temperature. Due to its superparamagnetic characteristics, an external magnet was used for the fast separation of the nanocomposite. This enabled the study of the nanocomposite reusability toward Pb2+ ions, showing good chemical stability even after six cycles. Subsequently, Fe3O4/N@C nanocomposite was shown to have excellent efficiency for the removal of toxic Pb2+ ions from water.

show abstract

Dyes Adsorption Behavior of Fe3O4 Nanoparticles Functionalized Polyoxometalate Hybrid

Cited by 10 publications

References 47 publications

A Nickel-Containing Polyoxomolybdate as an Efficient Antibacterial Agent for Water Treatment

A Nickel-Containing Polyoxomolybdate as an Efficient Antibacterial Agent for Water Treatment

Polyoxometalate-Based Materials for the Removal of Contaminants from Wastewater: A Review

Magnetic Nitrogen-Doped Porous Carbon Nanocomposite for Pb(II) Adsorption from Aqueous Solution

Contact Info

Product

Resources

About