Title: The Study of Modified Rectorite to adsorb Phenol from Water
Abstract:The natural rectorite(REC) was modified with dodecyl benzyl dimethyl ammonium chloride(1227), hexadecyl trimethyl ammonium bromide(1631) and octadecyl trimethyl ammonium bromide(1831) respectively. Th...The natural rectorite(REC) was modified with dodecyl benzyl dimethyl ammonium chloride(1227), hexadecyl trimethyl ammonium bromide(1631) and octadecyl trimethyl ammonium bromide(1831) respectively. Then we prepared three kinds of organic-modified rectorite: 1227-REC, 1631-REC, 1831-REC which were used as adsorbents to adsorb phenol from water. With X-ray diffraction, thermodynamics model of adsorption and adsorption isotherms, we studied the structure of the three organic-modified rectorites, analyzed the feasibility of adsorption and the adsorption capacity of three adsorbents for phenol from water respectively. The results indicated that the interlayer spacings of 1227-REC, 1631-REC and 1831-REC were 3.0026, 3.2454, 4.0867nm respectively, and increased obviously compared with that of original rectorite 2.22nm. Under the same condition, when the balanced concentration was low, the adsorption capacity of 1631-REC was the largest and 1831-REC took the second, 1227-REC was the smallest; when the concentration was high, the first adsorption capacity was 1831-REC, the second was 1631-REC, the third 1227-REC.Read More
Publication Year: 2004
Publication Date: 2004-01-01
Language: en
Type: article
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