Degradation of 2,4-dichlorophenol using palygorskite-supported bimetallic Fe/Ni nanocomposite as a heterogeneous catalyst
Source abstract
Abstract
Abstract A functional palygorskite-supported Fe/Ni (Pal-Fe/Ni) nanocomposite material is synthesised to remove 2,4-dichlorophenol (2,4-DCP) in an aqueous solution. The hypothesis is that Pal-Fe/Ni has superior efficacy than other Fe materials, such as Pal-Fe and Fe/Ni with regard to 2,4-DCP removal even though it requires less loading amount of metallic influencing the reaction. The surface morphology and surface chemical environments of Pal-Fe/Ni are studied using SEM, TEM, XRD and XPS characterisation methods. As revealed from batch experiments, initial pH, sample amount and reaction time are the key parameters influencing the 2,4-DCP removal efficiency. A further experiment reveals that iron leaching plays a main role for 2,4-DCP removal. Kinetic study reveals that removal of 2,4-DCP can be described by pseudo first-order model. A synergistic adsorption and catalytic reduction mechanism for the removal of 2,4-DCP by Pal-Fe/Ni is studied using UV–Vis, total organic carbon and HPLC-MS analyses. The results reveal complete dechlorination and 2,4-DCP degradation together with high total organic carbon removal. This study on immobilising Fe/Ni bimetallic nanoparticles onto palygorskite creates a new prospect for the practical application of Pal-Fe/Ni nanocomposite in remediation of contaminated aqueous solutions.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Environmental remediation with nanomaterials · Arsenic contamination and mitigation · Adsorption and biosorption for pollutant removal
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. Iron-nickel bimetallic nanoparticles for reductive degradation of azo dye Orange G in aqueous solution10.1016/j.apcatb.2007.10.033 ↗
2. Clay-supported nanoscale zero-valent iron composite materials for the remediation of contaminated aqueous solutions: a review10.1016/j.cej.2016.11.154 ↗
3. Rapid decolorization of azo dye methyl orange in aqueous solution by nanoscale zerovalent iron particles10.1016/j.jhazmat.2008.11.091 ↗
4. Debromination of polybrominated diphenyl ethers by Ni/Fe bimetallic nanoparticles: influencing factors, kinetics, and mechanism10.1016/j.jhazmat.2010.09.113 ↗
5. Immobilization of visible light-sensitive (N, Cu) co-doped TiO2 onto rectorite for photocatalytic degradation of p-chlorophenol in aqueous solution10.1016/j.clay.2016.10.010 ↗
6. Adsorption and dechlorination of 2, 4-dichlorophenol (2, 4-DCP) on a multi-functional organo-smectite templated zero-valent iron composite10.1016/j.cej.2012.03.004 ↗
7. Dechlorination of chlorinated phenols by subnanoscale Pd 0/Fe 0 intercalated in smectite: pathway, reactivity, and selectivity10.1016/j.jhazmat.2015.08.017 ↗
8. Characterization of bentonite modified with humic acid for the removal of Cu (II) and 2, 4-dichlorophenol from aqueous solution10.1016/j.clay.2016.09.036 ↗
9. Efficiency and recycling capability of montmorillonite supported Fe–Ni bimetallic nanocomposites towards hexavalent chromium remediation10.1016/j.apcatb.2011.02.011 ↗
10. Kinetic studies of reductive dechlorination of chlorophenols with Ni/Fe bimetallic particles10.1080/09593332808618818 ↗
11. Enhanced reduction of chlorophenols by nanoscale zerovalent iron supported on organobentonite10.1016/j.chemosphere.2013.01.030 ↗
12. Fenton-like oxidation of 2, 4-DCP in aqueous solution using iron-based nanoparticles as the heterogeneous catalyst10.1016/j.jcis.2014.09.082 ↗
13. Heterogeneous Fenton oxidation of 2, 4-dichlorophenol using iron-based nanoparticles and persulfate system10.1016/j.cej.2014.11.128 ↗
14. Pre-magnetized Fe0/persulfate for notably enhanced degradation and dechlorination of 2, 4-dichlorophenol10.1016/j.cej.2016.08.140 ↗
15. Enhanced adsorption and Fenton oxidation of 2, 4-dichlorophenol in aqueous solution using organobentonite supported nZVI10.1016/j.seppur.2018.01.032 ↗
16. Effect of chemical modification of palygorskite and sepiolite by 3-aminopropyltriethoxisilane on adsorption of cationic and anionic dyes10.1016/j.clay.2016.10.022 ↗
17. Traditional and new applications for kaolin, smectite, and palygorskite: a general overview10.1016/S0169-1317(00)00016-8 ↗
18. Ammonia-modified activated carbon for the adsorption of 2, 4-dichlorophenol10.1016/j.cej.2011.03.002 ↗
19. Kinetic, equilibrium and thermodynamic studies for sorption of 2, 4-dichlorophenol onto surfactant modified fuller's earth10.1016/j.clay.2017.03.040 ↗
20. Functional kaolinite supported Fe/Ni nanoparticles for simultaneous catalytic remediation of mixed contaminants (lead and nitrate) from wastewater10.1016/j.jcis.2014.04.059 ↗
21. Dechlorination of p-chlorophenol from aqueous solution using bentonite supported Fe/Pd nanoparticles: Synthesis, characterization and kinetics10.1016/j.desal.2011.06.067 ↗
22. The effect of ozonation on the toxicity and biodegradability of 2, 4-dichlorophenol-containing wastewater10.1016/j.cej.2015.06.019 ↗
23. Removal of 2, 4-dichlorophenol by suspended and immobilized Bacillus insolitus10.1016/S0045-6535(99)00263-5 ↗
24. Degradation of microcystin-LR using functional clay supported bimetallic Fe/Pd nanoparticles based on adsorption and reduction10.1016/j.cej.2014.06.003 ↗
25. Clay supported bimetallic Fe/Ni nanoparticles used for reductive degradation of amoxicillin in aqueous solution: Characterization and kinetics10.1016/j.colsurfa.2013.11.047 ↗
26. Enhancement of catalytic degradation of amoxicillin in aqueous solution using clay supported bimetallic Fe/Ni nanoparticles10.1016/j.chemosphere.2013.11.033 ↗
27. Simultaneous removal of amoxicillin, ampicillin and penicillin by clay supported Fe/Ni bimetallic nanoparticles10.1016/j.envpol.2018.01.100 ↗
28. Sorption and biodegradation of 2, 4-dichlorophenol in the presence of organoclays10.1016/j.clay.2004.01.003 ↗
29. Dispersion of zerovalent iron nanoparticles onto bentonites and use of these catalysts for orange II decolourisation10.1016/j.clay.2011.06.010 ↗
30. Adsorption–dechlorination of 2, 4-dichlorophenol using two specified MWCNTs-stabilized Pd/Fe nanocomposites10.1016/j.cej.2013.01.010 ↗
31. Dechlorination of 2, 4-dichlorophenol by nanoscale magnetic Pd/Fe particles: effects of pH, temperature, common dissolved ions and humic acid10.1016/j.cej.2013.07.018 ↗
32. Catalytic dechlorination of 2, 4-dichlorophenol by Pd/Fe bimetallic nanoparticles in the presence of humic acid10.1016/j.jhazmat.2010.06.022 ↗
33. Degradation of selected polychlorinated biphenyls by montmorillonite clay-templated Fe 0/Ni 0 bimetallic system10.1016/j.cej.2015.04.044 ↗
34. One-step synthesis of bentonite-supported nanoscale Fe/Ni bimetals for rapid degradation of methyl orange in water10.1007/s10311-014-0473-3 ↗
35. Adsorbents based on montmorillonite for contaminant removal from water: a review10.1016/j.clay.2015.12.024 ↗