title: 3D assembly based on 2D structure of Cellulose Nanofibril/Graphene Oxide Hybrid Aerogel for Adsorptive Removal of Antibiotics in Water.
abstract: Cellulose nanofibril/graphene oxide hybrid (CNF/GO) aerogel was fabricated via a one-step ultrasonication method for adsorptive removal of 21 kinds of antibiotics in water. The as-prepared CNF/GO aerogel possesses interconnected 3D network microstructure, in which GO nanosheets with 2D structure were intimately grown along CNF through hydrogen bonds. The aerogel exhibited superior adsorption capacity toward the antibiotics. The removal percentages (R%) of the antibiotics were more than 69% and the sequence of six categories antibiotics according to the adsorption efficiency was as follows: Tetracyclines > Quinolones > Sulfonamides > Chloramphenicols > β-Lactams > Macrolides. The adsorption mechanism was proposed to be electrostatic attraction, p-π interaction, π-π interaction and hydrogen bonds. In detail, the adsorption capacities of CNF/GO aerogel were 418.7 mg·g-1for chloramphenicol, 291.8 mg·g-1for macrolides, 128.3 mg·g-1for quinolones, 230.7 mg·g-1for β-Lactams, 227.3 mg·g-1for sulfonamides, and 454.6 mg·g-1for tetracyclines calculated by the Langmuir isotherm models. Furthermore, the regenerated aerogels still could be repeatedly used after ten cycles without obvious degradation of adsorption performance.
authors.affiliation: School of Engineering, Zhejiang A &F University, Hangzhou, Zhejiang Province, 311300, P. R. China.
authors.forename: Qiufang
authors.initials: Q
authors.lastname: Yao
authors.affiliation: School of Engineering, Zhejiang A &F University, Hangzhou, Zhejiang Province, 311300, P. R. China.
authors.forename: Bitao
authors.initials: B
authors.lastname: Fan
authors.affiliation: School of Engineering, Zhejiang A &F University, Hangzhou, Zhejiang Province, 311300, P. R. China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Xiong
authors.affiliation: School of Engineering, Zhejiang A &F University, Hangzhou, Zhejiang Province, 311300, P. R. China.|Key Laboratory of Wood Science and Technology, Zhejiang Province, 311300, P. R. China.
authors.forename: Chunde
authors.initials: C
authors.lastname: Jin
authors.affiliation: School of Engineering, Zhejiang A &F University, Hangzhou, Zhejiang Province, 311300, P. R. China.|Key Laboratory of Wood Science and Technology, Zhejiang Province, 311300, P. R. China.
authors.forename: Qingfeng
authors.initials: Q
authors.lastname: Sun
authors.affiliation: School of Engineering, Zhejiang A &F University, Hangzhou, Zhejiang Province, 311300, P. R. China.
authors.forename: Chengmin
authors.initials: C
authors.lastname: Sheng
mesh_terms: D000327:Adsorption; D000465:Algorithms; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification*; D002482:Cellulose / Q000737:chemistry*; D005782:Gels; D006108:Graphite / Q000737:chemistry*; D006860:Hydrogen Bonding; D008962:Models, Theoretical; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry*; D015203:Reproducibility of Results; D055672:Static Electricity; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods
chemical_list: D000900:Anti-Bacterial Agents; D005782:Gels; D010087:Oxides; D014874:Water Pollutants, Chemical; D006108:Graphite; D002482:Cellulose