| 醌基功能型高分子生物载体(PET-AQS)制备及催化生物反硝化特性研究 |
| |
| 引用本文： | 许晴,侯正浩,田秀蕾,牛春梅,郭延凯,廉静,郭建博.醌基功能型高分子生物载体(PET-AQS)制备及催化生物反硝化特性研究[J].环境科学,2015,36(4):1374-1378. |
| |
| 作者姓名： | 许晴 侯正浩 田秀蕾 牛春梅 郭延凯 廉静 郭建博 |
| |
| 作者单位： | 河北科技大学材料科学与工程学院, 石家庄 050018;河北科技大学材料科学与工程学院, 石家庄 050018;河北科技大学环境科学与工程学院, 河北省污染防治生物技术实验室, 石家庄 050018;河北科技大学材料科学与工程学院, 石家庄 050018;河北科技大学环境科学与工程学院, 河北省污染防治生物技术实验室, 石家庄 050018;河北科技大学环境科学与工程学院, 河北省污染防治生物技术实验室, 石家庄 050018;河北科技大学材料科学与工程学院, 石家庄 050018;河北科技大学环境科学与工程学院, 河北省污染防治生物技术实验室, 石家庄 050018 |
| |
| 基金项目： | 河北省高校百名优秀创新人才支持计划项目(BR2-211); 河北省杰出青年科学基金项目(E2012208012); 国家自然科学基金青年科学基金项目(51208170); 河北省高等学校高层次人才科学研究项目(GCC2014045) |
| |
| 摘 要： | 通过化学合成,将蒽醌磺酸钠(AQS)固定在聚对苯二甲酸乙二醇酯(PET)上形成醌基功能型高分子生物载体并研究其在生物反硝化上的应用.通过红外光谱衰减全反射法(ATR-IR)和能谱(EDS)分析,醌基基团成功固定在高分子表面,且醌基质量摩尔浓度为0.140 6 mmol·g-1.醌基功能型高分子生物载体(PET-AQS)能加速生物反硝化,且速率常数Kx与载体投加浓度呈零级反应动力学.在投加PET-AQS 0.056 2 mmol的反硝化体系中,循环使用10次,反硝化速率均是空白体系的1.2倍以上,表明PET-AQS具有良好的重复利用稳定性,有利于实际应用.
|
| 关 键 词： | 功能生物载体 氧化还原介体 高分子材料 固定化 反硝化 |
| 收稿时间： | 2014/9/25 0:00:00 |
| 修稿时间： | 2014/11/26 0:00:00 |
Preparation and Characterization of Quinone Functional Polymer Biocarrier (PET-AQS) for Biodenitrification Catalysis |
| |
| XU Qing,HOU Zheng-hao,TIAN Xiu-lei,NIU Chun-mei,GUO Yan-kai,LIAN Jing and GUO Jian-bo.Preparation and Characterization of Quinone Functional Polymer Biocarrier (PET-AQS) for Biodenitrification Catalysis[J].Chinese Journal of Environmental Science,2015,36(4):1374-1378. |
| |
| Authors: | XU Qing HOU Zheng-hao TIAN Xiu-lei NIU Chun-mei GUO Yan-kai LIAN Jing and GUO Jian-bo |
| |
| Institution: | School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;Pollution Prevention Biotechnology Laboratory of Hebei Province, School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China |
| |
| 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 0.1406 mmol ·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 (Kx) and the PET-AQS concentration (cPET-AQS) obeyed the pseudo-zero order kinetics. After ten rounds of recycling in the biodenitrification system with approximately 0.0562 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. |
| |
| Keywords: | functional biocarrier redox mediator polymer material immobilization denitrification |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
|
