Zinc adsorption on Na-rectorite and effect of static magnetic field on the adsorption
Source abstract
Abstract
Rectorite is a kind of rare clay minerals. In this work, the sorption of Zn2+ on Na-rectorite and the effects of static magnetic field on the sorption have been studied. The result from this study indicated that: (1) apparent equilibrium for the sorption of zinc onto Na-rectorite is attained within the first hour; (2) the maximum of the increment of Zn2+ adsorbed by Na-rectorite is obtained between pH 4 and pH 6; (3) magnetic treatment enhances the zeta potential of Na-rectorite dispersions in the absence of Zn2+ and reduces that of the dispersions in the presence of Zn2+; (4) magnetic treatment promotes the sorption of Zn2+ onto Na-rectorite, especially at the low Zn2+ concentration; (5) the effects of static magnetic field decrease the pH of Na-rectorite dispersions whether containing zinc or not. The mechanisms of static magnetic field on the sorption of Zn2+ on Na-rectorite were discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic and Electromagnetic Effects · Clay minerals and soil interactions · Calcium Carbonate Crystallization and Inhibition
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
Show source-provided references
1. Adsorption of heavy metals on Na-montmorillonite, Effect of pH and organic substance10.1016/S0043-1354(02)00524-9 ↗
2. Fixation of Zn2+ and Pb2+ by a Ca-montmorillonite in brines and dilute solutions: preliminary results10.1016/S0169-1317(96)00014-2 ↗
3. Adsorption of lead and cadmium ions from aqueous solution to the montmorillonite/water interface10.1016/S0927-7757(99)00501-4 ↗
4. Effects of magnetic fields on the phosphating process10.1016/S0257-8972(03)00388-8 ↗
5. Modelling the sorption of Zn and Ni on Ca-montmorillonite10.1016/S0016-7037(98)00281-6 ↗
6. Catdon adsorption on oxides and clays; the aluminum case10.1007/BF00877274 ↗
7. Aspects of kaolinite characterization and retention of Pb and Cd10.1016/S0169-1317(02)00110-2 ↗
8. Immobilization of cadmium and zinc in soil by Al-montmorillonite and gravel sludge10.1046/j.1365-2389.1998.00140.x ↗
9. Does magnetic treatment influence precipitation of calcium carbonate from supersaturated solutions
10. The sorption of zinc species by clay minerals10.1071/CH9761649 ↗
11. Reduction of soluble mineral concentrations in CaSO4 saturated water using a magnetic field10.1016/0043-1354(94)00214-R ↗
12. Adsorption of salmonella enteritidis by cetylpyridinium-exchanged montmorillonite clays10.1016/S0378-1135(00)00157-7 ↗
13. Magnetic effects on thickness of adsorbed layer in aqueous solutions evaluated directly by atomic force microscope10.1006/jcis.1998.5590 ↗
14. Effect of a magnetic field on the formation of CaCO3 particles10.1006/jcis.1993.1085 ↗
15. Magnetic effects on zeta potential and diffusivity of nonmagnetic colloidal particles10.1006/jcis.1995.1268 ↗
16. Time-dependent changes of zeta potential and other parameters of in situ calcium carbonate due to magnetic field treatment10.1016/S0927-7757(02)00149-8 ↗
17. Thermal studies of pharmaceutical clay system: Part II. Sepiolite-based systems10.1016/0040-6031(96)02947-4 ↗
18. A comparative study of the adsorption of transition metals on kaolinite10.1006/jcis.1999.6377 ↗
19. Adsorption of sulfate and copper(ii) on goethite in relation to the changes of zeta potentials10.1006/jcis.2002.8240 ↗
20. A model for metal adsorption on montmorillonite10.1006/jcis.1998.5947 ↗
21. Thermodynamics of chromium (VI) anionic species sorption onto surfactant-modified montmorillonite clay10.1006/jcis.2000.7015 ↗
22. Influence of external magnetic field on ionization of carboxylic cation-exchange resins
23. Dehydration, diffusion and entrapment of zinc in bentonite10.1346/CCMN.1998.0460202 ↗
24. Antimicrobial and antifungal agents derived from clay minerals10.1007/BF01105269 ↗
25. Adsorptive and photo catalytic performance of TiO2 pillared montmorillonite in degradation of endocrine disruptors having different hydrophobicity10.1016/S0926-3373(02)00169-8 ↗
26. Magnetic effects on electrolyte solutions in pulse and alternating fields10.1006/jcis.1998.5898 ↗
27. Magnetic effect on ion-exchange kinetics10.1006/jcis.1998.5952 ↗
28. An antimicrobial and antifungal agent derived from montmorillonite10.1016/0169-1317(91)90003-R ↗
29. Magnetic treatment of calcium carbonate scale-effect of PH control10.1016/S0043-1354(96)00238-2 ↗
30. Smectite-type clay minerals as nanomaterials10.1346/000986002320514136 ↗
31. Selective oxidation of liquid hydrocarbons over photoirradiated TiO2 pillared clays10.1016/S0926-860X(01)00863-8 ↗
32. Sorption of heavy metals by Lithuanian glauconite10.1016/S0043-1354(96)00004-8 ↗
33. The relative affinity of Cd, Ni and Zn for different soil clay fractions and goethite10.1016/0016-7061(84)90003-X ↗
34. Zinc adsorption by lime-treated montmorillonite clay10.1080/10934529909376826 ↗
35. Nickel, copper and zinc removal from waste water by a modified clay sorbent10.1016/S0169-1317(00)00036-3 ↗
36. Acid–base behaviour and Cu2+ and Zn2+ complexation properties of the sepiolite/water interface10.1016/S0009-2541(03)00002-0 ↗
37. Influence of magnetic field and type of substrate on the growth of ZnS films by chemical bath10.1016/S0040-6090(02)00767-8 ↗
38. Sodium-cadmium and sodium-zinc exchangeability in montmorillonite10.1007/s002690050145 ↗
39. Advances in liquid-phase organic reactions using heteropolyacid and clay
40. Specific cadmium sorption in relation to the crystal chemistry of clay minerals10.2136/sssaj1988.03615995005200010009x ↗