FORMALDEHYDE ELIMINATION USING SEPIOLITE CLAY MINERAL COMBINED WITH AN AMINO ACID

The adsorption of formaldehyde by sepiolite-amino acid complex (sepiolite combined with an amino acid) was studied in comparison with that of the aldehyde by mere sepiolite. The formaldehyde adsorption isotherms were measured at 25℃ in ambient atmosphere. The adsorptivity of sepiolite-amino acid com...

Full description

Saved in:
Bibliographic Details
Published in:Clay Science 2012, Vol.16(1), pp.19-23
Main Authors: FUKUMOTO, KAZUHIRO, SUZUKI, KENICHIROU, INOUE, SHINSUKE, ASO, YASUHIRO, ITAHARA, HIROYUKI
Format: Article
Language:English
Subjects:
Activated carbon
Adsorption
Amino acid
Earth sciences
Earth, ocean, space
Exact sciences and technology
Formaldehyde
Mineralogy
Reaction
Sepiolite
Silicates
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The adsorption of formaldehyde by sepiolite-amino acid complex (sepiolite combined with an amino acid) was studied in comparison with that of the aldehyde by mere sepiolite. The formaldehyde adsorption isotherms were measured at 25℃ in ambient atmosphere. The adsorptivity of sepiolite-amino acid complex was about 10 times greater than that of mere sepiolite at a low equilibrium concentration (< 1 ppm). However, amino acid itself did not react with formaldehyde. Adsorbents such as sepiolite and activated carbon also have a very small formaldehyde adsorption capacity. We have developed a formaldehyde adsorbent sheet, which is made of a mixture of pulp and sepiolite-amino acid complex. The sheet have put into practical use globally as a scavenger to remove formaldehyde in ambient air.
ISSN:0009-8574
2186-3555
DOI:10.11362/jcssjclayscience.16.1_19