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Adsorption performance of creatinine on dialdehyde nanofibrillated cellulose derived from potato residues
Author(s) -
Cui Dongli,
Liu Zehua,
Yang Yaxing,
Huang Rijin,
Cheng Xiaojuan,
Fatehi Pedram,
Sun Bo
Publication year - 2015
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1002/btpr.2177
Subject(s) - cellulose , adsorption , chemistry , creatinine , chromatography , biochemistry , nuclear chemistry , chemical engineering , organic chemistry , engineering
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 . © 2015 American Institute of Chemical Engineers Biotechnol. Prog. , 32:208–214, 2016