Intercalation and separation of isomeric nitrophenols using the anionic clay, Mg2Al(OH)6(CO3)0.5·nH2O and the structurally related layered hydroxy salt, Ni3Zn2(OH)8(CH3COO)2·mH2O
Source abstract
Abstract
Intercalative sorption of isomeric nitrophenolates (NP) was investigated in two different layered hydroxide materials - anionic clay, magnesium aluminium layered double hydroxide (MgAl-LDH) through reconstructive mechanism and the structurally related layered hydroxy salt, Ni 3Zn 2(OH) 8(CH 3COO) 2·mH 2O (NiZn-LHS) through ion-exchange. Intercalation of NP isomers was confirmed by powder X-ray diffraction and infrared spectroscopy. The NP uptake by the layered hydroxide materials was quantified by high performance liquid chromatography. Both the layered hydroxide materials exhibit selective intercalation from the nitrophenolate mixtures. The order of preference is 4-NP > > 2-NP > 3-NP in MgAl-LDH and 4-NP > 2-NP > > 3-NP in NiZn-LHS. The bias in intercalation could be attributed to (1) the concentration of the phenolate ions influenced by the pKa of the isomer and (2) extent of H-bonding of the nitro group of the isomer with the hydroxide slabs. The 4-isomer with lower pKa and better H-bonding with the adjacent hydroxide slabs is preferentially intercalated. The anionic clays can be used to sorb out nitrophenols as well as separate them from their mixtures.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Nanomaterials for catalytic reactions · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Thermal decomposition of Mg/Al and Mg/Ga layered-double hydroxides: a spectroscopic study10.1039/a900535h ↗
2. Preparation and evaluation of iron oxide/hydrotalcite intercalated with dodecylsulfate/β-cyclodextrin magnetic organocomposite for phenolic compounds removal10.1016/j.clay.2020.105659 ↗
3. Hydrotalcites as sorbents for 2,4,6-trinitrophenol: influence of the layer composition and interlayer anion10.1039/b107979b ↗
4. Hydrotalcite decomposition mechanism: a clue to the structure and reactivity of spinel-like mixed oxides10.1021/jp960040i ↗
5. Thermal behavior of hydroxides, hydroxysalts and hydrotalcites10.1007/BF02706556 ↗
6. Separation of amino acids by selective sorption through reconstructive intercalation in calcined MgAl-layered double hydroxide10.1039/D2DT01115H ↗
7. Solvent-mediated and mechanochemical methods for anion exchange of carbonate from layered double hydroxides using ammonium salts10.1021/acsomega.9b03261 ↗
8. Hydrotalcite-type anionic clays: preparation, properties and applications10.1016/0920-5861(91)80068-K ↗
9. Removal of nitrophenol pesticides from aqueous solutions by layered double hydroxides and their calcined products10.1016/j.clay.2010.08.002 ↗
10. Studies on adsorption of phenol and 4-nitrophenol on MgAl-mixed oxide derived from MgAl-layered double hydroxide10.1016/j.seppur.2009.03.016 ↗
11. Intercalative nanohybrids of nucleoside monophosphates and DNA in layered metal hydroxide10.1021/ja981823f ↗
12. Harvesting solar light on a tandem of Pt or Pt-Ag nanoparticles on layered double hydroxides photocatalysts for p-nitrophenol degradation in water10.1016/j.clay.2019.105250 ↗
13. Controllable synthesis of cobalt-containing nanosheet array-like ternary CuCoAl-LDH/rGO hybrids to boost the catalytic efficiency for 4-nitrophenol reduction10.1021/acsami.2c01637 ↗
14. Layered double hydroxides (LDH)
15. Simultaneous sorption of 4-nitrophenol and 2-nitrophenol on a hybrid geocomposite based on surfactant modified pillared-clay and activated carbon10.1016/j.cej.2015.05.012 ↗
16. Hydrotalcite as sorbent for trinitrophenol: sorption capacity and mechanism10.1016/0043-1354(95)00088-3 ↗
17. Intercalation chemistry of layered double hydroxides: recent developments and applications10.1039/B204076J ↗
18. Selective anion-exchange intercalation of isomeric benzoate anions into the layered double hydroxide [LiAl2(OH)6]Cl·H2O10.1016/j.jssc.2005.09.012 ↗
19. Effective catalytic reduction of 4-nitrophenol to 4-aminophenol over etched halloysite nanotubes@α-Ni(OH)2
20. Photocatalytic degradation of phenol using MgAlSn hydrotalcite-like compounds10.1016/j.clay.2016.05.005 ↗
21. Ca-Al, Ni-Al and Zn-Al LDH powders as efficient materials to treat synthetic effluents containing o-nitrophenol10.1016/j.jallcom.2020.155628 ↗
22. Anion-exchange reactions of hydroxy double salts10.1021/ic00059a030 ↗
23. Anion exchange properties of hydrotalcite-like compounds10.1346/CCMN.1983.0310409 ↗
24. Effects of zinc on the new preparation method of hydroxy double salts10.1021/ic9812149 ↗
25. Synthesis, characterization and applications of layered double hydroxides containing organic guests10.1039/a708319j ↗
26. Adsorptive potential of Zn–Al and Mg–Fe layered double hydroxides for the removal of 2–nitrophenol from aqueous solutions
27. Isomer selective ion-exchange intercalation of nitrophenolates into the layered double hydroxide [LiAl2(OH)6]Cl.xH2O10.1039/B514638K ↗
28. The many ways of making anionic clays10.1007/BF02708799 ↗
29. Decoration of nickel and magnesium oxide crystallites with spinel-type phases10.1021/ja00084a011 ↗
30. Thermal decomposition of hydrotalcites an infrared and nuclear magnetic resonance spectroscopic study10.1039/FT9928802233 ↗
31. Layered Ni(II)-Zn(II) hydroxyacetates. Anion exchange and thermal decomposition of the hydroxysalts obtained10.1039/b110145e ↗
32. Intercalation of vanadate in Ni, Zn layered hydroxyacetates10.1016/j.jssc.2004.05.055 ↗
33. Intercalation of metal-edta complexes in Ni–Zn layered hydroxysalts and study of their thermal stability10.1016/j.micromeso.2007.09.042 ↗
34. Hierarchically porous NiAl-LDH nanoparticles as highly efficient adsorbent for p-nitrophenol from water10.1016/j.apsusc.2015.05.041 ↗
35. Sulfurized graphene as efficient metal-free catalysts for reduction of 4-nitrophenol to 4-aminophenol10.1021/acs.iecr.7b03217 ↗
36. Towards understanding, control and application of layered double hydroxide chemistry10.1039/b604895a ↗
37. Enhanced adsorptive removal of p-nitrophenol from water by aluminium metal–organic framework/reduced graphene oxide composite10.1038/srep25638 ↗
38. The removal of p-nitrophenol from aqueous solutions by adsorption using gemini surfactants modified montmorillonites10.1016/j.cej.2012.12.045 ↗
39. New exchangeable layered mixed basic salt Ni(1-x)Zn2x(OH)2(OCOCH3)2x.nH2O10.1557/PROC-371-131 ↗
40. Adsorption of p-nitrophenol from aqueous solutions using nanographite oxide10.1016/j.colsurfa.2014.10.020 ↗