01457nas a2200181   4500008004100000022001400041245007600055210006900131260007100200300001400271490000800285520079100293100002301084700002101107700002201128700001801150856010701168       2009                        eng d  a1520-610600aAdsorption and desorption kinetics of anionic dyes on doped polyaniline0 aAdsorption and desorption kinetics of anionic dyes on doped poly  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcFEB  a2293-22990 v1133 a<p>In this study, we report an approach for the adsorption and desorption of anionic (sulfonated) dyes from aqueous solution by doped polyaniline. In this study, we have synthesized PANI with two dopants, namely, p-toluenesulfonic acid (PTSA) and camphorsulfonic acid (CSA), and used these to adsorb various dyes. It was found that the doped PANI selectively adsorbs anionic dyes and does not adsorb cationic dyes. The adsorption of anionic dyes causes the variation in electrical conductivity of PANI, indicating its potential as a conductometric sensor for these dyes at very low concentration. The adsorbed dyes were desorbed from the polymer by using a basic aqueous solution. The adsorption and desorption kinetics of the dye in the presence of doped PANI were also determined.</p>1 aMahanta, Debajyoti1 aMadras, Giridhar1 aRadhakrishnan, S.1 aPatil, Satish  uhttps://library.ncl.res.in/content/adsorption-and-desorption-kinetics-anionic-dyes-doped-polyaniline-0