Surface functional group orangic

Figure A.4 shows that increases with an increase of Cq- Q provides the necessary driving force to overcome the resistance for mass transfer of methyl orange, methyl blue and safranine T between the aqueous phase and the solid phase. The increase in Q also enhances the interaction between adsorbate molecules and the vacant sorption sites on the SZ and the surface functional groups. Therefore, an increase in Q enhances the adsorption uptake of methyl orange, methyl blue and safranine T by synthesised and commercial zeolite.

Modihed polymers can also be analyzed by the use of some reactive dyes. Some of the reactive dyes are specihc to the functional groups. Rhodamine 6G can be used to determine the presence of carboxyl functional groups. Similarly, toluidine blue (TBO) and methylene blue can be used to determine the surface carboxyl group whereas methyl orange can be used to determine the presence of amino groups present on the surface of modihed polymers. 

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