title: Adsorption-desorption behavior of magnetic amine/Fe3O4 functionalized biopolymer resin towards anionic dyes from wastewater.
abstract: In this work, a new kind of magnetic amine/Fe3O4 functionalized biopolymer resin (amine/Fe3O4-resin) was prepared and applied to remove various anionic dyes from water. Methyl Orange (MO), Reactive Brilliant Red K-2BP (RBR) and Acid Red 18 (AR) were selected as the typical anionic dye for this research. Meanwhile, amine/Fe3O4-resin was characterized by VSM, XRD, FT-IR, SEM, TEM and XPS. Three anionic dyes removed by amine/Fe3O4-resin were investigated using batch adsorption technique, and the parameters including adsorbent dosage, pH, contact time and temperature were considered. Due to a large number of amine groups and high surface areas, amine/Fe3O4-resin exhibited a remarkably high adsorption capacity for all three dyes, reaching 101.0mg/g, 222.2mg/g and 99.4mg/g for RBR, MO and AR at 25°C, respectively. The pseudo second order model and Langmuir model agreed well with the experimental data, and regeneration experiments indicated its merit of separability and reusability.
authors: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors: Wen
authors: W
authors: Song
authors: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China. Electronic address: bygao@sdu.edu.cn.
authors: Baoyu
authors: B
authors: Gao
authors: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors: Xing
authors: X
authors: Xu
authors: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors: Lulu
authors: L
authors: Xing
authors: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors: Shuang
authors: S
authors: Han
authors: Key Laboratory of Water Pollution Control and Recycling (Shandong), School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
authors: Pijun
authors: P
authors: Duan
authors: Jinan Water and Wastewater Monitoring Center, 250033 Jinan, PR China.
authors: Wuchang
authors: W
authors: Song
authors: Jinan Water and Wastewater Monitoring Center, 250033 Jinan, PR China.
authors: Ruibao
authors: R
authors: Jia
mesh_terms: D000327:Adsorption; D000588:Amines / Q000737:chemistry*; D000838:Anions; D001391:Azo Compounds; D001704:Biopolymers / Q000737:chemistry*; D004396:Coloring Agents / Q000302:isolation & purification*; D005290:Ferric Compounds / Q000737:chemistry*; D006851:Hydrochloric Acid / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008280:Magnetics; D009282:Naphthalenesulfonates; D012116:Resins, Plant / Q000737:chemistry*; D012965:Sodium Chloride / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D062065:Wastewater / Q000737:chemistry*; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000302:isolation & purification; D014961:X-Ray Diffraction
chemical_list: D000588:Amines; D000838:Anions; D001391:Azo Compounds; D001704:Biopolymers; D004396:Coloring Agents; D005290:Ferric Compounds; D006851:Hydrochloric Acid; D009282:Naphthalenesulfonates; D012116:Resins, Plant; D012965:Sodium Chloride; D062065:Wastewater; D014867:Water; D014874:Water Pollutants, Chemical; C000499:ferric oxide; C576297:ponceau 4R
keywords: Adsorption; Anionic dyes; Biopolymer resin; Ion exchange; Magnetic