The adsorption characteristics of nitrate on Mg–Fe and Mg–Al layered double hydroxides in a simulated soil solution
Source abstract
Abstract
Abstract Four types of layered double hydroxides (LDHs) synthesized by coprecipitation method including Mg–Al and Mg–Fe in 3:1 and 4:1 ratios of M 2 + /M 3 + were compared in terms of chemical structure, nitrate adsorption isotherm and kinetics, thermodynamic parameters, anion exchange capacity and nitrate selectivity in the presence of common anions found in soil solutions. Moreover, the influence of calcination on nitrate adsorption was studied. Results showed that the Mg–Al-LDH (4:1) was most effective for the removal of nitrate and its selectivity for nitrate adsorption was remarkable in the presence of phosphate, sulfate and bicarbonate. The nitrate adsorption on Mg–Al-LDH (4:1) followed a pseudo-second order model with rate constant of 0.623 g mmol − 1 min − 1 . Furthermore, the kinetic data were described very well with the intraparticle diffusion model with rate constant of 0.046 mmol g − 1 min − 0.5 . The nitrate adsorption isotherm of Mg–Al-LDH (4:1) described well with the Freundlich model as indicated by the high values of R 2 . The negative values of ΔH r o indicated that the nitrate adsorption on the LDHs was exothermic in nature. Calcination of the LDHs had no significant effect on increasing nitrate adsorption.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Phosphorus and nutrient management · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (63)
Show source-provided references
1. Adsorption of chromium ion by acid activated low cost carbon
2. Ion exchange of different phosphate ions into the zinc–aluminium–chloride layered double hydroxide10.1016/S0167-577X(98)00195-5 ↗
3. A review of emerging adsorbents for nitrate removal from water10.1016/j.cej.2011.01.103 ↗
4. From the organized nanoparticles of copper and vanadium containing LDHs to the small nanoparticles of mixtures of mixed oxides: a simple route10.1016/j.matlet.2005.05.025 ↗
5. Kinetic modelling of the adsorption of nitrates by ion exchange resin10.1016/j.cej.2006.08.014 ↗
6. The removal of nitrate from aqueous solutions by chitosan hydrogel beads10.1016/j.jhazmat.2008.09.001 ↗
7. Phosphate adsorption from sewage sludge filtrate using zinc–aluminum layered double hydroxides10.1016/j.jhazmat.2009.04.052 ↗
8. Adsorption of phosphate from seawater on calcined MgMn-layered double hydroxides10.1016/j.jcis.2005.04.025 ↗
9. Comparative structural, thermodynamic and electronic analyses of Zn–Al–An− hydrotalcite-like compounds (An−=Cl−, F−, Br−, OH−, CO32− or NO3−): an ab initio study10.1016/j.clay.2011.11.014 ↗
10. Sorption of terephthalate anions by calcined and uncalcined hydrotalcite-like compounds10.1016/S0927-7757(02)00233-9 ↗
11. Physicochemical characterization and adsorption behavior of calcined Zn/Al hydrotalcite-like compound (HTlc) towards removal of fluoride from aqueous solution10.1016/S0021-9797(03)00082-1 ↗
12. Adsorption of phosphate by layered double hydroxides in aqueous solutions10.1016/j.clay.2006.02.005 ↗
13. Effect of the Mg:Al ratio on borate (or silicate)/nitrate exchange in hydrotalcite10.1006/jssc.2000.8653 ↗
14. Removal of nitrate from aqueous solutions by activated carbon prepared from sugar beet bagasse10.1016/j.biortech.2009.09.087 ↗
15. Determination of nitrate in water containing dissolved organic carbon by ultraviolet spectroscopy10.1080/03067310108044385 ↗
16. Evaluation of boron removal from water by hydrotalcitelike compounds10.1016/j.chemosphere.2005.04.009 ↗
17. Layered double hydroxides
18. Application of layered double hydroxides for removal of oxyanions: a review10.1016/j.watres.2007.10.043 ↗
19. Sorption characteristics and mechanisms of oxyanions and oxyhalides having different molecular properties on Mg/Al layered double hydroxide nanoparticles10.1016/j.jhazmat.2010.03.077 ↗
20. Uptake of arsenite by synthetic layered double hydroxides10.1016/j.watres.2009.06.003 ↗
21. Synthetic hydrotalcite-type and hydrocalumite-type layered double hydroxides for arsenate uptake10.1016/j.clay.2010.03.017 ↗
22. Structure and the point of zero charge of magnesium aluminium hydroxide10.1039/a706607d ↗
23. Pseudo-second order model for sorption processes10.1016/S0032-9592(98)00112-5 ↗
24. Nitrate adsorption from aqueous solution by MII–Al–CO3 layered double hydroxide10.1134/S0020168508070121 ↗
25. Evaluation of phosphate removal from water by calcined-LDH synthesized from the dolomite10.1134/S1061933X10030178 ↗
26. Studies on zero point of charge and permanent charge density of Mg–Fe hydrotalcite-like compounds10.1021/la0008838 ↗
27. Chloride removal from wastewater by thermally treated hydrotalcite10.1007/BF02840239 ↗
28. Nitrate sorption by thermally activated Mg/Al chloride hydrotalcite-like compound10.1016/j.jhazmat.2009.03.128 ↗
29. Synthesis and physicochemical characterization of Zn/Al chloride layered double hydroxide and evaluation of its nitrate removal efficiency10.1016/j.desal.2010.02.003 ↗
30. Physicochemical characterization and adsorption behavior of Ca/Al chloride hydrotalcite-like compound towards removal of nitrate10.1016/j.jhazmat.2011.03.094 ↗
31. Sorption energies estimation using Dubinin–Radushkevich and Temkin adsorption isotherms
32. Layered double hydroxide and its anion exchange capacity
33. Removal of boron and iodine from optoelectronic wastewater using Mg–Al (NO3) layered double hydroxide10.1016/j.desal.2010.06.015 ↗
34. Modeling of nitrate adsorption on granular activated carbon (GAC) using artificial neuron network (ANN)10.2202/1542-6580.1870 ↗
35. Perchlorate uptake by synthetic layered double hydroxides and organoclays10.1016/j.clay.2010.11.025 ↗
36. Anionic clays as potential slow-release fertilizers: nitrate ion exchange10.1023/B:JOPO.0000011385.19108.49 ↗
37. Uptake of chloride ion from aqueous solution by calcined layered double hydroxides: equilibrium and kinetic studies10.1016/j.watres.2005.11.043 ↗
38. Treatment of high fluoride concentration water by MgAl–CO3 layered double hydroxides: kinetic and equilibrium studies10.1016/j.watres.2006.12.033 ↗
39. Bromide ion removal from contaminated water by calcined and uncalcined MgAl–CO3 layered double hydroxides10.1016/j.jhazmat.2007.07.117 ↗
40. Removal of fluoride ions from aqueous solution by the calcination product of Mg–Al–Fe hydrotalcite-like compound10.1016/j.desal.2010.09.045 ↗
41. Agricultural activities impact on groundwater nitrate pollution10.1007/BF03325856 ↗
42. Defluoridation of water using as-synthesized Zn/Al/Cl anionic clay adsorbent: equilibrium and regeneration studies10.1016/j.jhazmat.2009.01.069 ↗
43. Structure and composition of the layered double hydroxides of Mg and Fe: implications for anion-exchange reactions10.1002/ejic.201100104 ↗
44. Anion-exchange properties of hydrotalcite-like compounds10.1346/CCMN.1983.0310409 ↗
45. Comparison of different synthesis routes for Mg–Al layered double hydroxides (LDH): characterization of the structural phases and anion exchange properties10.1016/j.clay.2008.10.009 ↗
46. A kinetic study of nitrite adsorption onto sepiolite and powdered activated carbon10.1016/j.desal.2007.01.209 ↗
47. The use of hydrotalcite as an anion absorbent10.1021/ie00043a023 ↗
48. Study on the adsorption kinetics of orthophosphate anions on layer double hydroxide10.1007/s11631-009-0184-9 ↗
49. Layered double hydroxides as potential chromate scavengers10.1016/j.jcis.2006.08.064 ↗
50. Nitrate-ion-selective exchange ability of layered double hydroxide consisting of MgII and FeIII10.1016/j.jhazmat.2012.02.063 ↗
51. Removal of phosphate by layered double hydroxides containing iron10.1016/S0043-1354(01)00340-2 ↗
52. Kinetics and mass transfer studies on the adsorption of arsenic onto activated alumina and iron oxide impregnated activated alumina10.2166/wqrj.2006.017 ↗
53. The synthesis and phosphate adsorptive properties of Mg(II)–Mn(III) layered double hydroxides and their heat-treated materials10.1246/bcsj.77.2101 ↗
54. Studies on selective adsorbents for oxo-anions. Nitrate ion-exchange properties of layered double hydroxides with different metal atoms10.1039/b314938m ↗
55. Studies on selective adsorbents for oxo-anions. NO3− adsorptive properties of Ni–Fe layered double hydroxide in seawater10.1007/s10450-005-6018-0 ↗
56. Capacity, selectivity, and reversibility for nitrate exchange of a layered double-hydroxide (LDH) mineral in simulated soil solutions and in soil10.1002/jpln.200700330 ↗
57. Use of a layered double hydroxide (LDH) to buffer nitrate in soil: long-term nitrate exchange properties under cropping and fallow conditions10.1007/s11104-008-9748-4 ↗
58. Adsorption mechanism of humic and fulvic acid onto Mg/Al layered double hydroxides10.1016/j.clay.2007.02.010 ↗
59. Measurements of exchange capacities and hydrolysis as means of characterizing cation and anion retention by soils
60. Removal of perchlorate contaminants by calcined Zn/Al layered double hydroxides: equilibrium, kinetics, and column studies10.1016/j.desal.2010.02.001 ↗
61. Hydrothermal synthesis of layered double hydroxides (LDHs) from mixed MgO and Al2O3: LDH formation mechanism10.1021/cm048085g ↗
62. Selenium adsorption on Mg–Al and Zn–Al layered double hydroxides10.1016/S0169-1317(00)00043-0 ↗
63. Kinetics of arsenate adsorption–desorption in soils10.1021/es050334u ↗