The adsorbent materials with different concentration I took for Uv spectrum analysis, In that I got transmittance is increased when increased my concentration level of my additive. Actually adsorption is a surface reaction only. Then how it is possible to increase the transmittance value of adsorption materials.
Hi,
Your question seems not clear enough. Were you taking the absorbance of an analyte (i.e any pollutant) or you were determining the absorbance peak of an adsorbent you prepared? Kindly note that transmittance is inversely related to absorbance. For instance, if solute concentration is increasing, percent transmittance will decrease while absorbance will increase. If you are obtaining something different from this theoretical message, then either you need to recalibrate your machine or the spectrophotometer must be zeroed before measurement or you need to prepare fresh solution.
you should find in witch wavelength you have peak. each material can have specific wavelength in Reagan of UV or visible.
What is your substrate? I presume you use the non exposed substrate as r reference for transmittance? depending on the material, the adsorbant could fill substrate pores, and reduce scattering losses.
first of al it is necessary to know that where do you want to adsorb the adsorbent. is it a solid steel surface, of powder surface or a metallic surface. theoretically if there is a significant amount of adsorption of the adsorbent then you will find a decrease in absorbance in adsorbate treated solution than in non adsorbate treated solution.
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