Insights into phosphate adsorption behavior on structurally modified ZnAl layered double hydroxides
Source abstract
Abstract
Abstract The present study focuses on the phosphate uptake by synthetic ZnAl-layered double hydroxides having different charge density due to the modification of the cationic ratio (Zn2+/Al3+) within the brucite-like sheets. The structure of the as-synthesized ZnAl-LDH was confirmed by X-ray diffraction and 27Al NMR and micro-Raman spectroscopy characterization techniques. The materials were applied for sorption of phosphate anions in aqueous media under relevant conditions. Parameters affecting the sorption process were thoroughly investigated, such as the layer cationic ratio, the exchangeable interlayer anion, thermal treatment and competitive sorption in the presence of co-existing anions. The sorption data provided information regarding the relationship between the phosphate uptake and the physical-chemical properties of these materials. The phosphate adsorption onto the non-calcined LDH occurred via the anionic exchange mechanism while both structural reconstruction and precipitation mechanisms were observed for the calcined materials. The obtained results suggest that the Zn containing LDH are suitable candidates for the phosphate recovery or removal from aqueous media in wastewater treatment processes.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Phosphorus and nutrient management · Adsorption and biosorption for pollutant removal
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (44)
Show source-provided references
1. Phosphorus retention in the filter materials shellsand and Filtralite P®—batch and column experiment with synthetic P solution and secondary wastewater10.1016/j.ecoleng.2006.09.021 ↗
2. Agency · 1991
3. Ion exchange of different phosphate ions into the zinc–aluminium–chloride layered double hydroxide10.1016/S0167-577X(98)00195-5 ↗
4. Bhatnagar · 2013
5. Fluoride removal from water by adsorption—a review10.1016/j.cej.2011.05.028 ↗
6. Hybrid anion exchanger for trace phosphate removal from water and wastewater10.1016/j.watres.2007.01.008 ↗
7. Hydrotalcite-type anionic clays: Preparation, properties and applications10.1016/0920-5861(91)80068-K ↗
8. Phosphate adsorption from sewage sludge filtrate using zinc–aluminum layered double hydroxides10.1016/j.jhazmat.2009.04.052 ↗
9. Uptake properties of phosphate on a novel Zr–modified MgFe–LDH(CO3)10.1016/j.jcis.2010.05.068 ↗
10. Comparative Structural, thermodynamic and electronic analyses of ZnAlAn− hydrotalcite-like compounds (an−Cl−, F−, Br−, OH−, CO32− or NO3−): an ab initio study10.1016/j.clay.2011.11.014 ↗
11. Adsorption of phosphate by layered double hydroxides in aqueous solutions10.1016/j.clay.2006.02.005 ↗
12. Adsorption of phenol onto activated carbons having different textural and surface properties10.1016/j.micromeso.2007.08.002 ↗
13. Insights into the modeling of adsorption isotherm systems10.1016/j.cej.2009.09.013 ↗
14. Application of layered double hydroxides for removal of oxyanions: a review10.1016/j.watres.2007.10.043 ↗
15. Synthetic hydrotalcite-type and hydrocalumite-type layered double hydroxides for arsenate uptake10.1016/j.clay.2010.03.017 ↗
16. Adsorption–desorption characteristics of nitrate, phosphate and sulfate on Mg–Al layered double hydroxide10.1016/j.clay.2013.05.002 ↗
17. High adsorption selectivity of ZnAl layered double hydroxides and the calcined materials toward phosphate10.1016/j.jcis.2009.11.004 ↗
18. Nitrate sorption by thermally activated Mg/Al chloride hydrotalcite-like compound10.1016/j.jhazmat.2009.03.128 ↗
19. Reactive Phosphorus Removal from Aquaculture and Poultry Productions Systems using Polymeric Hydrogels10.1021/es025950u ↗
20. Phosphate uptake behavior of ZnAlZr ternary layered double hydroxides through surface precipitation10.1016/j.jcis.2009.09.059 ↗
21. Phosphate adsorption using modified iron oxide-based sorbents in lake water: Kinetics, equilibrium, and column tests10.1016/j.cej.2015.08.114 ↗
22. THE ADSORPTION OF GASES ON PLANE SURFACES OF GLASS, MICA AND PLATINUM10.1021/ja02242a004 ↗
23. Study of structural transformations and phases formation upon calcination of Zn–Ni–Al hydrotalcite nanosheets10.1007/s12034-011-0060-1 ↗
24. Phosphate adsorption on metal oxides and metal hydroxides: a comparative review10.1139/er-2015-0080 ↗
25. Synthesis, Anion Exchange, and Delamination of Co−Al Layered double Hydroxide: Assembly of the Exfoliated Nanosheet/Polyanion Composite Films and Magneto-Optical Studies10.1021/ja0584471 ↗
26. Simultaneous removal of arsenate and antimonate in simulated and practical water samples by adsorption onto Zn/Fe layered double hydroxide10.1016/j.cej.2015.04.095 ↗
27. Adsorption of fluoride ions by Zn–Al layered double hydroxides10.1016/j.clay.2007.07.004 ↗
28. Surface complexation reactions of inorganic anions on hydrotalcite-like compounds10.1016/j.jcis.2012.06.072 ↗
29. Review: Phosphorus removal and recovery technologies10.1016/S0048-9697(97)00332-X ↗
30. Equilibrium and kinetic studies of adsorption of phosphate onto ZnCl2 activated coir pith carbon10.1016/j.jcis.2004.08.015 ↗
31. Phosphate removal from wastewater by model-La(III) zeolite adsorbents10.1016/S1001-0742(08)62111-7 ↗
32. Evaluation of pyrene sorption–desorption on tropical soils10.1016/j.jenvman.2014.01.048 ↗
33. Organization, W. W. H · 2006
34. Reactive Behavior of Natural Manganese Oxides toward the Adsorption of Phosphate and Arsenate10.1021/ie0106534 ↗
35. Utilization of a Selective Adsorbent for Phosphorus Removal from Wastewaters10.1089/ees.2010.0139 ↗
36. How the Method of Synthesis Governs the local and Global Structure of Zinc Aluminum Layered double Hydroxides10.1021/acs.jpcc.5b09490 ↗
37. Rouquerol · 1999 · 191
38. About the theory of so called adsorption of soluble substances
39. Scott M. Auerbach, K. A. C., Prabir K. Dutta (2004). Handbook of Layered Materials. New York, Marcel Dekker, Inc.10.1201/9780203021354 ↗
40. Zn–Al layered double hydroxides: Synthesis, characterization and photocatalytic application10.1016/j.micromeso.2007.11.029 ↗
41. Suresh · 2014
42. Removal of phosphate by aluminum oxide hydroxide10.1016/S0021-9797(02)00008-5 ↗
43. 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 ↗
44. Kinetics of adsorption carbon from solutions