期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 603, 期 -, 页码 459-467出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.06.026
关键词
Feldspar; Albite; Sol-gel; Synthesis
资金
- Division of Chemical Sciences, Geosciences, and Bio-sciences, Office of Basic Energy Sciences, U.S. Department of Energy
- Center for Nanophase Materials Sciences, DOE Office of Science User Facility
Feldspars are common minerals in the Earth's crust and synthesizing them has been a challenge, requiring high pressures, high temperatures, and hydrothermal environments. This paper introduces a method for albite synthesis that does not require high-pressure environments, allowing for controlled elemental substitutions.
Feldspars are the most abundant minerals in the Earth's crust, and are also important constituents of many lunar rocks and some stony meteorites. Albite (NaAlSi3O8) makes up the sodium corner of the feld-spar ternary diagram (KAlSi3O8-NaAlSi3O8-CaAl2Si2O8) and connects the alkali-feldspar and plagioclase binary joins. Synthesis of albite, however, has long been a problem, even at high temperatures and even at high pressures when dry. In fact, most successful syntheses require the combination of high-pressure, high-temperature, and hydrothermal environments. This paper presents a sol-gel method of albite syn-thesis that requires hydrothermal processing followed by high-temperature recrystallization, but no high-pressure environments. This has the advantage of allowing synthesis of relatively large amounts of material and controlled elemental substitutions. (C) 2021 Published by Elsevier Inc.
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