Transformation of boehmite into 2:1 type layered aluminosilicates with different layer charges under hydrothermal conditions
Source abstract
Abstract
In this study, beidellite, paragonite and other 2:1 type layered aluminosilicates with high layer charges (2:1 type LA-HLC) were synthesized under hydrothermal conditions by using boehmite as a precursor. The concentrations of dissolved Al from boehmite precursor had important effects on the mineral components of the hydrothermal products and the layer charge density of the resultant minerals. A combination of 2:1 type LA-HLC, paragonite, and minor beidellite formed at a relatively high concentration of dissolved Al, while beidellite with a small amount of 2:1 type LA-HLC was produced at a low concentration of dissolved Al. The resultant 2:1 type LA-HLC exhibited poor swelling ability when treated with ethylene glycol. A solid-state transformation mechanism was proposed for the transformation based on the HRTEM images and EDS analyses, which showed that lattice fringes representing (001) faces of 2:1 type layered aluminosilicates (2:1 type LA) were parallel to the (020) direction of boehmite. The successful transformation of boehmite into 2:1 type LA provides insights to well understand the formation of 2:1 type LA in geological processes and offer a facile preparation approach for the synthesis of 2:1 type LA with different layer charges.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Clay minerals and soil interactions · CO2 Sequestration and Geologic Interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (50)
Show source-provided references
1. Transformation mechanisms and interstratification in conversion of smectite to kaolinite: an HRTEM study10.1346/CCMN.1998.0460505 ↗
2. The role of randomly mixed-layered chlorite/smectite in the transformation of smectite to chlorite10.1346/CCMN.1997.0450403 ↗
3. A stable-isotope study of lateritic bauxites10.1016/0016-7037(89)90073-2 ↗
4. Reflectance spectroscopy of beidellites and their importance for mars10.1346/CCMN.2011.0590403 ↗
5. Transition alumina phases induced by heat treatment of boehmite: an X-ray diffraction and infrared spectroscopy study10.1016/j.jssc.2009.02.006 ↗
6. Mineralogical and physico-chemical characterizations of ferruginous beidellite-rich clay from Agadir basin (Morocco)10.1346/CCMN.2012.0600305 ↗
7. Iron in hydrothermal clays from the Galapagos spreading center mounds-consequences for the clay transition mechanism10.1180/claymin.1993.028.4.11 ↗
8. New insights into the formation of diagenetic illite from TEM studies10.2138/am.2013.4220 ↗
9. Characterization of mixed-layer illite-smectite from bentonites using microscopic, chemical, and X-ray methods: constraints on the smectite-to-illite transformation mechanism10.2138/am-1998-7-808 ↗
10. Role of clay minerals in the formation of atmospheric aggregates of Saharan dust10.1016/j.atmosenv.2015.08.077 ↗
11. XRD, IR and ESR study of experimental alteration of Al-nontronite into mixed-layer kaolinite smectite10.1180/claymin.1989.024.4.05 ↗
12. Interstratified kaolinite-smectite: Nature of the layers and mechanism of smectite kaolinization10.2138/am.2006.1897 ↗
13. Clay mineral synthesis. 2. A randomly interstratified aluminian montmorillonoid
14. Clay mineral synthesis. 3. Rapid hydrothermal crystallization of an aluminum smectite10.1346/CCMN.1972.0200509 ↗
15. Transmission electron-microscope observations of illite polytypism10.1346/CCMN.1991.0390509 ↗
16. 29Si and 27Al MAS NMR study of the thermal transformations of kaolinite from North China10.1180/0009855033840114 ↗
17. Aluminum ion occupancy in the structure of synthetic saponites: effect on crystallinity10.2138/am.2014.4543 ↗
18. Transformation of halloysite and kaolinite into beidellite under hydrothermal condition10.2138/am-2017-5935 ↗
19. Mechanism of illite formation during smectite-to-illite conversion in a hydrothermal system
20. Conversion of serpentine to smectite under hydrothermal condition: Implication for solid-state transformation10.2138/am-2018-6183CCBYNCND ↗
21. Shale problems and water-based drilling fluid optimisation in the Hassi Messaoud Algerian oil field10.1016/j.clay.2010.06.008 ↗
22. Spectroscopic studies of synthetic and natural beidellites: a review10.1016/j.clay.2005.10.003 ↗
23. Characterization of synthetic Na-beidellite10.1346/CCMN.1990.0380410 ↗
24. Synthesis and paragenesis of Na-beidellite as a function of temperature, water-pressure, and sodium activity10.1346/CCMN.1993.0410403 ↗
25. The effect of increasing layer charge on the infrared absorption spectra of synthetic beidellites10.1023/A:1006794707140 ↗
26. Clay and man-clay raw-materials in the service of man10.1016/0169-1317(95)00029-4 ↗
27. Diagenetic structural transformations in north-sea jurassic illite/smectite10.1346/CCMN.1991.0390108 ↗
28. The thermal-reactions of muscovite studied by high-resolution solid-state 29Si and 27Al NMR10.1007/BF01082158 ↗
29. van der Marel · 1976
30. Seafloor hydrothermal clay alteration at Jade in the back-arc Okinawa Trough: Mineralogy, geochemistry and isotope characteristics10.1016/S0016-7037(99)00158-1 ↗
31. Clay minerals related to the hydrothermal activity of the Bouillante geothermal field (Guadeloupe)10.1016/j.jvolgeores.2006.07.010 ↗
32. Hydrothermal Clay mineral formation of East Pacific rise and Bauer basin sediments10.1016/0009-2541(81)90143-1 ↗
33. HRTEM evidence for the process and mechanism of saponite-to-chlorite conversion through corrensite10.2138/am-1999-7-810 ↗
34. Engineered clay products for the paper industry10.1016/j.clay.2004.12.005 ↗
35. Fabrication of boehmite and Al2O3 nonwovens from boehmite nanofibres and their potential as the sorbent10.1039/c2jm33914e ↗
36. Highly charged swelling micas of different charge densities: Synthesis, characterization, and selectivity for Sr and Ba10.1016/j.seppur.2012.11.028 ↗
37. Hydration properties of synthetic high-charge micas saturated with different cations: an experimental approach10.2138/am.2013.4217 ↗
38. Synthetic high-charge organomica: effect of the layer charge and alkyl chain length on the structure of the adsorbed surfactants10.1021/la300153e ↗
39. 29Si solid state NMR investigation of pozzolanic reaction occurring in lime-treated Ca-bentonite10.1016/j.cemconres.2012.01.008 ↗
40. Infrared spectral study of molecular vibrations in amorphous, nanocrystalline and AlO(OH)·αH2O bulk crystals10.1016/S1350-4495(01)00117-7 ↗
41. 29Si and 27Al high-resolution MAS-NMR spectra of phyllosilicates10.1021/ja00329a024 ↗
42. Synthesis of mixed-layer kaolinite-smectite10.1346/CCMN.1980.0280603 ↗
43. Srodon · Illite. Rev. Mineral. · 1984 · 13 · 495
44. The stabilities of gibbsite, boehmite, aluminous goethites and aluminous hematites in bauxites, ferricretes and laterites as a function of water activity, temperature and particle-size10.1016/0016-7037(87)90107-4 ↗
45. Current challenges in clay minerals for drug delivery10.1016/j.clay.2010.01.007 ↗
46. Geochemical behaviour of trace elements during bauxite formation in Sarawak Malaysia10.1016/0016-7037(65)90102-X ↗
47. Hydrothermal crystallization mechanism of sodium beidellite from amorphous gel10.1007/BF00271003 ↗
48. Mineralogical and geochemical evolution of the Fusui bauxite deposit in Guangxi, South China: from the original Permian orebody to a Quarternary Salento-type deposit10.1016/j.gexplo.2014.07.020 ↗
49. Synthesis of clay minerals10.1016/j.clay.2010.06.019 ↗
50. Adsorbents based on montmorillonite for contaminant removal from water: a review10.1016/j.clay.2015.12.024 ↗