Rule of Fe0 nano-particles and biopolymer structures in kinds of the connected pairs to remove Acid Yellow 17 from aqueous solution: simultaneous removal of dye in two paths and by four mechanisms.
In this study, cyclohexane 1,3,5-tericarboxylic acid (CHA) and β-isopropylglutaric acid (IPA) were used to obtain the cross-linked forms of the extracted pectin from orange skin (PO), viz. PO-CHA and PO-IPA. These agents were used to stabilize the synthesized Fe(0) nano-particles (Fe(0) NPs) viz. the preparation of Fe(0)-PO, Fe(0)-PO-CHA and Fe(0)-PO-IPA, to compare their ability for the removal of Acid yellow 17 (AY 17) from aqueous solution. FT-IR spectra specified that bidentate bridging and monodentate interaction were the primary mechanisms for binding PO-CHA and PO-IPA molecules to Fe(0) NPs, respectively. The removal percent of AY 17 was determined 97.8, 92.8, 84.1, 79.6, 72.8, 61.5 and 45.6 by Fe(0)-PO-CHA, Fe(0)-PO-IPA, Fe(0)-PO, PO-CHA, PO-IPA, PO and Fe(0) NPs, respectively, for the dye initial concentration of 200 ppm, at the optimized conditions. In these agents, Fe(0) nano-particles performed the reduction process of AY 17, while the organic polymers performed its adsorption process.
Department of Applied Chemistry, Faculty of Science, Islamic Azad University, Rasht Branch, Rasht, Iran. rakhshaei@iaurasht.ac.ir
Roohan
R
Rakhshaee
D000327:Adsorption; D001704:Biopolymers / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007501:Iron / Q000737:chemistry*; D053768:Metal Nanoparticles; D046529:Microscopy, Electron, Transmission; D010084:Oxidation-Reduction; D011720:Pyrazoles / Q000302:isolation & purification*; D012996:Solutions; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction
D001704:Biopolymers; D011720:Pyrazoles; D012996:Solutions; D014867:Water; C010377:yellow 2G; D007501:Iron