Adsorption of acidic pesticides 2,4-D, Clopyralid and Picloram on calcined hydrotalcite
Source abstract
Abstract
Calcined hydrotalcite, HT500, a Mg-Al mixed oxide with NaCl-structure of composition Mg3AlO4.5 was shown to be an effective adsorbent for the acidic pesticides: 2,4-D, Clopyralid and Picloram. Adsorption experiments were conducted using three procedures: time-dependent (kinetic), pH-dependent and concentration-dependent (isotherm). Results indicate that the intensity of the adsorption is related to the acidity of the pesticides. The characterization of the adsorption products by XRD and FT-IR spectroscopy confirm the adsorption of the three pesticides in the anionic form in the hydrotalcite interlayer by reconstruction of the layered structure. There was evidence of the adsorption of Picloram also in molecular form.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Magnesium Oxide Properties and Applications · Thermal Expansion and Ionic Conductivity
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (42)
Show source-provided references
1. Humic substance uptake by hydrotalcites and PILCs10.1016/0043-1354(95)00182-4 ↗
2. Bellamy · 1968
3. Bellamy · 1975 · vol. 1
4. Anion-exchange in takovite: applications to other hydroxide minerals10.3406/bulmi.1980.7392 ↗
5. Organosmectites as sorbent and carrier of the herbicide bentazone10.1016/S0048-9697(99)00498-2 ↗
6. Dicamba adsorption–desorption on organoclays10.1016/S0169-1317(01)00037-0 ↗
7. Hydrotalcite-type anionic clays: preparation, properties and applications10.1016/0920-5861(91)80068-K ↗
8. Sorption of the ionizable pesticide imazamox by organohydrotalcites10.1080/03601239909373237 ↗
9. Clay–herbicide complexes to retard Picloram leaching in soil10.1080/03067310290018785 ↗
10. Intercalation of organic and inorganic anions into layered double hydroxides10.1039/c39890000926 ↗
11. Biological effect of agriculturally derived surface water pollutants on aquatic systems10.2134/jeq1993.00472425002200030003x ↗
12. de Roy · 1992 · vol. II
13. Adsorption of pesticide on solid component, a microcalorimentric study10.1007/BF03341460 ↗
14. Sorption of 131I− by hydrotalcites10.1007/BF02035243 ↗
15. Removing of 2,4-D from waters by organo-clays10.1016/0045-6535(92)90270-2 ↗
16. Binding mechanism of 2,4-dichlorophenoxy acetic acid by organo-clays10.2134/jeq1993.00472425002200020013x ↗
17. Trichlorophenol adsorption on layered double hydroxide: a potential sorbent10.1080/10934529309375984 ↗
18. Hydrotalcite as sorbent for trinitrophenol: sorption capacity and mechanism10.1016/0043-1354(95)00088-3 ↗
19. Use of the ion-exchange properties of layered double hydroxides for water purification10.1135/cccc19980732 ↗
20. Studies in adsorption: Part XI. A system of classification of solution adsorption isotherms and its use in diagnosis of adsorption mechanisms and in measurement specific surface of solids10.1039/jr9600003973 ↗
21. Adsorption of MCPA pesticide by MgAl-layered double hydroxides10.1016/S0169-1317(01)00029-1 ↗
22. Removal from anions from solution by hydrotalcite and regeneration of used sorbent in repeated calcination–rehydration anion exchange processes10.1135/cccc19991517 ↗
23. Effect of hydrothermal and thermal treatments on the physicochemical properties of Mg–Al hydrotalcite like materials10.1007/BF00542916 ↗
24. Pesticide–clay interactions and formulations10.1016/S0169-1317(01)00043-6 ↗
25. Preparation of a new stable hybrid material by chloride 2-4-dichlorophenoxyacetate ion exchange into the zinc–aluminium–chloride layered double hydroxide10.1039/a909047i ↗
26. Pesticide contamination of groundwaters in western Europe10.1016/0167-8809(89)90018-2 ↗
27. Anion exchange reaction of layered double hydroxides10.1021/ic00351a013 ↗
28. Anion exchange properties of hydrotalcite-like compounds10.1346/CCMN.1983.0310409 ↗
29. Sorption of an anionic surfactant from water by a calcined hydrotalcite-like sorbent
30. Layered double hydroxides (LDH) intercalated with metal coordination compounds and oxometalates10.1016/S0010-8545(98)00216-1 ↗
31. Adsorption of cloridazon by montmorillonite10.1016/0045-6535(87)90029-4 ↗
32. Glyphosate–hydrotalcite interaction as influenced by pH10.1346/CCMN.1999.0470613 ↗
33. Intercalation of benzenecarboxilate ions into the interlayer of the hydrotalcite10.1016/0167-2738(91)90101-G ↗
34. Preparation and chemical properties of magnesium aluminium oxide solid solutions10.1016/0168-7336(86)80088-2 ↗
35. A survey of sorption relationships for reactive solutes in soil10.2134/jeq1981.00472425001000010002x ↗
36. Layered double hydroxides in water decontamination
37. Hydrotalcite-like compounds as potential sorbents of phenols from water10.1016/0169-1317(95)00020-5 ↗
38. Adsorption of anionic species on hydrotalcite-like compounds: effect of interlayer anion and crystallinity10.1016/S0169-1317(00)00026-0 ↗
39. Hydrotalcites and organohydrotalcites as sorbents for removing pesticides from water10.1080/03601239909373211 ↗
40. Worthing, C.R., Hance, R.J., 1991. The pesticide manual BCPC, Surey, UK.
41. You, Y., Zhao, H., Vance, G.F., 2002a. Surfactant enhanced adsorption of organic compounds by layered double hydroxides.10.1016/S0927-7757(01)01137-2 ↗
42. Adsorption of dicamba (3,6-dichloro-2-metoxy benzoic acid) in aqueous solution by calcined-layered double hydroxide10.1016/S0169-1317(01)00102-8 ↗