Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
584763 | Journal of Hazardous Materials | 2007 | 5 Pages |
Abstract
To reduce the generation of hydrogen sulfide gas from sulfate ions, we synthesized a layered double hydroxide hydrotalcite-like compound intercalated with chloride ions in the interlayer (HT-Cl) using a coprecipitation reaction. The resultant HT-Cl material had a Mg/Al molar ratio of approximately 2, and the molar fraction of the chloride ions on the intercalated anion layer of the HT was 0.90. A higher molar fraction of chloride ions can be inserted into the interlayers of the HT by increasing the initial concentration ratio of chloride ions to aluminum ions [Clâ]0/[Al3+]0 in the solution. Approximately 98% of the sulfate ions in the solution were removed within 10Â min after adding 1.12 times the stoichiometric quantity of synthesized HT-Cl, which contained a Mg/Al molar ratio of 2 equal to a solution containing a 12Â mM calcium sulfate solution.
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Physical Sciences and Engineering
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Authors
Akino Tsujimura, Miho Uchida, Akitsugu Okuwaki,