A novel bioelectrode and anaerobic sludge coupled system for p-ClNB degradation by magnetite nanoparticles addition
A novel bioelectrode and anaerobic sludge coupled system for p-ClNB degradation by magnetite nanoparticles addition
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一种新型生物电极和厌氧污泥耦合系统，用于通过添加磁铁矿纳米粒子降解 p-ClNB
DOI：
10.1007/s11356-017-9047-9
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发表时间：
2017-05
影响因子：
5.8
通讯作者：
Liang Zhu
中科院分区：
文献类型：
--
作者：
Xiangyang Xu;Xinyi Gao;Jie Jin;Julia Vidonish;Liang Zhu
建立了一种新型的实验室规模的生物电极-厌氧污泥耦合系统，研究了纳米磁铁矿颗粒对氯硝基苯（p-ClNB）还原转化的强化作用.在该耦合系统中，向生物电极提供0.8V的电压，并且将磁铁矿纳米颗粒的量设定为7.4mL/400 mL。结果表明，当p-ClNB初始浓度为30 mg L-1时，该耦合体系的p-ClNB转化率为0.284 h-1，对氯苯胺（p-ClAn）脱氯率为0.082 h-1，p-ClAn是p-ClNB的还原产物之一.循环伏安曲线表明，当电位为-1000 mV时，磁铁矿-生物阴极电流约为非生物阴极电流的10.7倍。此外，还观察到还原峰电位的移动和还原峰电流的急剧增加。这些结果表明，磁铁矿纳米粒子可以增强电催化活性，并可能作为电子导管之间的微生物或电极和微生物，以促进细胞外电子转移。
A novel laboratory-scale bioelectrode and anaerobic sludge coupled system was established for the enhancement of p-chloronitrobenzenes (p-ClNB) reductive transformation with addition of magnetite nanoparticles. In this coupled system, the bioelectrodes were supplied with a voltage of 0.8 V and the amount of magnetite nanoparticles was set at 7.4 mL/400 mL. Results showed that high p-ClNB transformation rate of 0.284 h-1and high p-chloroaniline (p-ClAn) dechlorination rate of 0.082 h-1were achieved in the coupled system at p-ClNB initial concentration of 30 mg L-1, and p-ClAn is one of the reductive products of p-ClNB. The cyclic voltammetry curve showed that when the potential was -1000 mV, the magnetite-biocathode current was about 10.7 times of the abiotic cathode. Also, a shift in the reductive peak potential and a dramatic increase in reductive peak current were observed. These findings suggest that magnetite nanoparticles could enhance the electrocatalytic activity and may act as electron conduits between microorganisms or between electrodes and microorganisms to promote the extracellular electron transfer.
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影响因子：
12.8
作者：
Jingxin Zhang;Yaobin Zhang;X. Quan;Shuo Chen
通讯作者：
Jingxin Zhang;Yaobin Zhang;X. Quan;Shuo Chen
影响因子：
22.1
作者：
Dawei Wang;Yi Li;G. L. Puma;Chao Wang;Peifang Wang;Wenlong Zhang;Qing Wang
通讯作者：
Dawei Wang;Yi Li;G. L. Puma;Chao Wang;Peifang Wang;Wenlong Zhang;Qing Wang
从地下水中去除对氯硝基苯：异质纳米颗粒零价铁 (NZVI) 诱导芬顿过程的有效性和降解机制
影响因子：
15.1
作者：
Li, Bingzhi;Zhu, Jiang
通讯作者：
Zhu, Jiang
通过将生物电化学系统集成到上流式厌氧污泥床中有效硝基还原和脱氯 2,4-二硝基氯苯：综合研究
影响因子：
12.8
作者：
Jiang, Xinbai;Shen, Jinyou;Wang, Lianjun
通讯作者：
Wang, Lianjun
利用生物催化阴极将硝基苯有效还原为苯胺
影响因子：
11.4
作者：
Wang, Ai-Jie;Cheng, Hao-Yi;Rabaey, Korneel
通讯作者：
Rabaey, Korneel