| 希瓦氏菌合成并协同纳米钯还原氯硝基苯的研究 |
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| 引用本文： | 孔宛芹,产丹丹,韩锐善,武超.希瓦氏菌合成并协同纳米钯还原氯硝基苯的研究[J].安徽农业大学学报,2017,44(5):806-810. |
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| 作者姓名： | 孔宛芹 产丹丹 韩锐善 武超 |
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| 作者单位： | 安徽大学资源与环境工程学院,合肥,230601;安徽大学资源与环境工程学院,合肥,230601;安徽大学资源与环境工程学院,合肥,230601;安徽大学资源与环境工程学院,合肥,230601 |
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| 基金项目： | 国家自然科学基金项目（31670126）, 安徽省自然科学基金青年项目(1508085QB47)和安徽大学青年骨干教师培养项目(J01005132)共同资助。 |
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| 摘 要： | 研究了异化金属还原细菌Shewanella oneidensis MR-1合成金属钯纳米颗粒,用于还原2-氯硝基苯的还原机制、过程和动力学。结果表明,S.oneidensis MR-1可将氯钯酸钠还原成零价钯纳米颗粒(Bio Pd)。S.oneidensis MR-1和Bio Pd协同能催化2-氯硝基苯的还原,且S.oneidensis MR-1的醌脱氢酶Cym A在还原中发挥重要作用。2-氯硝基苯的还原产物包括2-氯苯胺、硝基苯和苯胺,而苯胺是还原最终产物,说明该体系可同时实现脱氯和硝基还原。动力学分析显示,Bio Pd-Shewanella协同催化体系还原2-氯硝基苯的过程符合二级反应动力学过程。
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| 关 键 词： | 希瓦氏菌 钯 纳米颗粒 氯硝基苯 |
| 收稿时间： | 2017/2/21 0:00:00 |
Biological synthesis of Pd nanoparticles by Shewanella oneidensis MR-1 used for the reduction of chloronitrobenzene |
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| KONG Wanqin,CHAN Dandan,HAN Ruishan and WU Chao.Biological synthesis of Pd nanoparticles by Shewanella oneidensis MR-1 used for the reduction of chloronitrobenzene[J].Journal of Anhui Agricultural University,2017,44(5):806-810. |
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| Authors: | KONG Wanqin CHAN Dandan HAN Ruishan and WU Chao |
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| Institution: | School of Resources and Environmental Engineering, Anhui University, Hefei 230601,School of Resources and Environmental Engineering, Anhui University, Hefei 230601,School of Resources and Environmental Engineering, Anhui University, Hefei 230601 and School of Resources and Environmental Engineering, Anhui University, Hefei 230601 |
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| Abstract: | The biological synthesis of palladium nanoparticle (BioPd) by S. oneidensis MR-1 and its ability to reduce 2-chloronitrobenzene (2-CNB) were investigated. The results showed that BioPd reduced 2-CNB through cooperation with S. oneidensis MR-1, and heavily depended on the quinone dehydrogenase CymA in S. oneidensis MR-1. The reduction products included in nitrobenzene, chloroaniline and aniline, and aniline was the final product, indicating that the synergistically catalytic system could achieve dechlorination and nitro-reduction simultaneously. The reduction of 2-CNB could be described as the second-order kinetics. |
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| Keywords: | Shewanella palladium nanoparticle nitrobenzene |
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