摘要：
首次使用电化学聚合-掺杂技术制备了固定化氧化还原介体,用以提高硝基苯的厌氧转化效率。以典型氧化还原介体蒽醌-2,6-二磺酸钠(AQDS)为掺杂剂,以吡咯为载体,以活性炭毡(ACF)为电极基体材料制备了聚吡咯(PPy)复合材料,ACF/PPy/AQDS,并使用元素分析对其进行了表征。通过间歇厌氧生物实验考察了ACF/PPy/AQDS作为一种新型固定化氧化还原介体催化硝基苯厌氧生物转化的可行性。结果表明,ACF/PPy/AQDS不仅具有较强的催化活性,而且具有良好的催化稳定性。
关键词:
氧化还原介体,
聚吡咯,
活性炭毡,
电化学聚合-掺杂,
硝基苯,
厌氧转化
Abstract:
To promote the anaerobic biotransformation efficiency of nitrobenzene, electrochemical polymerizationdoping technology has been proposed to prepare the immobilized redox mediator for the first time. The typical redox mediator anthraquinonedisulphonate（AQDS） is used as doping anion, pyrrole（PPy）as carrier, and activated carbon felt （ACF） as electrode basic material for preparing polypyrrole （PPy） composites, ACF/PPy/AQDS. Elemental analysis techniques are used for characterizing this new composite. Then, through intermittent anaerobic biological experiments, the feasibility of ACF/PPy/AQDS as a novel immobilized redox mediator for catalyzing anaerobic biotransformation of nitrobenzene is investigated. The results show that ACF/PPy/AQDS exhibits good catalytic activity and stability.
Key words:
redox mediator；polypyrrole,
activated carbon felt,
electrochemical polymerization-doping,
nitrobenzene； anaerobic biotransformation
中图分类号:
李丽华, 周集体, 王竞, 张隆, 吕红. 一种新型固定化介体催化强化硝基苯的厌氧生物转化[J]. 工业水处理, 2008, 28(11): 27-30.
Li Lihua, Zhou Jiti, Wang Jing, Zhang Long, Lü Hong. Enhancement of nitrobenzene anaerobic biotransformation by using a novel immobilized redox mediator[J]. INDUSTRIAL WATER TREATMENT, 2008, 28(11): 27-30.