The performance of carboxylated alginic acid derivatives via methyl orange and Congo red catalytic reduction

Numerous water-treatment marital have been developed during the past few years, including adsorbents., catalytic reduction behavior of carboxylated alginic acid derivatives has investigated against harmful organic dyes Methyl Orange (MO) and Congo Red (CR). Alginic was firstly oxidized through an easy addition KMnO 4 as oxidizing agent. A (CAA) interacted with selected metal ions (Sn, Fe, Ni, Zr) coordination bonds at value pH = to form corresponding complexes namely: Sn-CAA, Fe-CAA, Ni-CAA, Zr-CAA. The consistency confirmed by several spectroscopic techniques FT-IR, XRD, SEM, EDX. these ion-based products carried out MO, CR in presence NaBH a reducing agent under UV irradiation. All catalysts-based showed enhanced compared MO. Among all those mentioned Sn-CAA best dyes. time is taken for CR, MO 5 7 min respectively. Ni-CAA classified second efficient product both dyes, where process took 20 9 other two catalysts long reduction. Zr-CAA more than 80% only dye within min. Whereas, Fe-CAA did not show any significant sign after same time. order higher illustrated as: > Fe-CAA.