title: Adsorption performance of creatinine on dialdehyde nanofibrillated cellulose derived from potato residues.
abstract: Potato residue is vastly produced in the food industry but it is landfilled. This article describes the treatment of purified cellulose derived from potato residues by a high pressure homogenizer to produce nano-fibrillated cellulose (NFC), which was then oxidized by sodium periodate to prepare dialdehyde nano-fibrillated cellulose (DANFC). The produced NFC and DANFC were characterized by a scanning electron microscope (SEM) and Fourier transform infrared spectroscopy (FTIR). The orthogonal experiment was induced to obtain the maximum degree of oxidation (DO) on DANFC. The results indicated that the optimal conditions were 40°C and pH 3. Alternatively, the isotherm and kinetic studies for the adsorption of creatinine on DANFC with different DOs (70.5 and 88.8%) were investigated, and the experimental results fitted well into Freundlich isotherm model and pseudo second-order kinetic model. The maximum adsorption capacities of DANFCs with the DO of 70.55 and 88.85% were 6.7 and 17.2 mg g(-1) , respectively, which were achieved under the conditions of 37°C and initial creatinine concentration of 100 mg L(-1).
authors.affiliation: Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, China.
authors.forename: Dongli
authors.initials: D
authors.lastname: Cui
authors.affiliation: Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, China.
authors.forename: Zehua
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, China.
authors.forename: Yaxing
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, China.
authors.forename: Rijin
authors.initials: R
authors.lastname: Huang
authors.affiliation: Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, Tianjin, 300457, China.
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Cheng
authors.affiliation: Dept. of Chemical Engineering, Lakehead University, Thunder Bay, ON, P7B 5E1, Canada.
authors.forename: Pedram
authors.initials: P
authors.lastname: Fatehi
authors.affiliation: Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Ministry of Education, Tianjin, 300457, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Sun
mesh_terms: D000327:Adsorption; D002482:Cellulose / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D003404:Creatinine / Q000737:chemistry*; D007700:Kinetics; D057139:Nanofibers / Q000737:chemistry*; D011198:Solanum tuberosum / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
chemical_list: D002482:Cellulose; C058684:2,3-dialdehydocellulose; D003404:Creatinine
keywords: biomaterials; creatinine; dialdehyde nano-fibrillated cellulose (DANFC); kinetic and isotherm adsorption; potato residues