Adsorption of hydrolyzed polyacrylamide on sepiolite

Abstract

Adsorption isotherms of hydrolyzed polyacrylamide (I) on sepiolite were Langmuir type and the energy of adsorption was -17 to -20 kJ/mol. The amount of adsorption decreased with increasing degree of hydrolysis of I and pH, but increased in the presence of NaCl. The results were discussed in terms of changes in configuration of I, surface properties of sepiolite, and interaction between I and sepiolite.

Key words: POLYACRYLAMIDE, MOLECULAR WEIGHT, ADSORPTION, SURFACE CHEMISTRY, ISOTHERM, IONIC STRENGTH, SEPIOLITE, PH VALUE

CLC Number:

O647
O631.3

Cite this article

ZHANG CHUNGUANG;HOU WANGUO;WANG GUOTING. Adsorption of hydrolyzed polyacrylamide on sepiolite[J]. Acta Chimica Sinica, 1988, 46(9): 933-936.

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部分水解聚丙烯酰胺在海泡石上的吸附