title: [Preparation and Characterization of Quinone Functional Polymer Biocarrier (PET-AQS) for Biodenitrification Catalysis].
abstract: Anthraquinone sodium sulfonate (AQS) was immobilized on polyethylene terephthalate (PET) by chemical synthesis, forming quinone functional polymer biocarrier (PET-AQS), and its characteristics in biodenitrification catalysis were analyzed. Quinone group was demonstrated to be successfully immobilized on the surface of the polymer and the concentration of immobilized quinone was 0.140 6 mmol x g(-1) by Attenuated Total Reflectance Spectrometry (ATR-IR) and Energy Dispersive Spectrometry (EDS). The PET-AQS could accelerate biodenitrification. The relationship between the denitrification rate constant (K(x)) and the PET-AQS concentration (C(PET-AQS)) obeyed the pseudo-zero order kinetics. After ten rounds of recycling in the biodenitrification system with approximately 0.056 2 mmol quinone, the denitrification rate was kept at more than 1.2 times of the blank system. This indicated that PET-AQS exhibited a good operational stability and was beneficial to practical application.
authors.forename: Qing
authors.initials: Q
authors.lastname: Xu
authors.forename: Zheng-hao
authors.initials: ZH
authors.lastname: Hou
authors.forename: Xiu-lei
authors.initials: XL
authors.lastname: Tian
authors.forename: Chun-mei
authors.initials: CM
authors.lastname: Niu
authors.forename: Yan-kai
authors.initials: YK
authors.lastname: Guo
authors.forename: Jing
authors.initials: J
authors.lastname: Lian
authors.forename: Jian-bo
authors.initials: JB
authors.lastname: Guo
mesh_terms: D000880:Anthraquinones / Q000737:chemistry*; D002384:Catalysis; D058440:Denitrification; D007477:Ions; D011093:Polyethylene Terephthalates / Q000737:chemistry*
chemical_list: D000880:Anthraquinones; D007477:Ions; D011093:Polyethylene Terephthalates; C023554:anthraquinone sulfonate