Hydrothermal synthesis of zeolites using silica extracted from tropical volcanic ash
نویسندگان
چکیده
Tropical volcanic ash is a cheap and sustainable source of high purity silica for the synthesis zeolites; zeolite type, whether Na–X, Na–P or hydroxysodalite, depends on amount SiO 2 Na O in hydrogels.
منابع مشابه
Hydrothermal Origin of Smectite in Volcanic Ash
Abstraet--Smectite and fine-grained quartz were separated from 6 volcanic ash samples collected in Japan from Shinmoe-dake Volcano, southern Kyushu, and Mt. Usu Volcano, southern Hokkaido. Oxygen isotope ratios of smectite in the volcanic ash range from +6,9 to + 12.9 per mill (%o), which are comparable to the values of smectite (~lsO = +6.5 and +9.4%0) from currently active geothermal fields. ...
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ژورنال
عنوان ژورنال: Materials advances
سال: 2023
ISSN: ['2633-5409']
DOI: https://doi.org/10.1039/d3ma00065f