Enhanced bioreduction of 2,5-dichlorobenzene by an AHQ/RGO binary nanocomposite through a synergistic effect with outer membrane proteins of Shewanella oneidensis MR-1
文献类型：期刊论文
| 作者 | Zhang, Haikun1,2,3; Han, Kunming1; Hu, Xiaoke1,2,3
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| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 389页码:124464 |
| 关键词 | Binary nanocomposite 2-Amino-3-hydroxy anthraquinone Reduced graphene oxide 2,5-Dichloronitrobenzene Bioreduction |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2020.124464 |
| 英文摘要 | The slow anaerobic reduction rate of 2,5-dichloronitrobenzene (DCNB) is a bottleneck during its biotreatment. In this study, the process and mechanism of enhanced DCNB bioreduction by a 2-amino-3-hydroxy-anthraquinone/reduced grapheme oxide (AHQ/RGO) binary nanocomposite in the presence of Shewanella oneidensis MR-1 (MR1) are reported. AHQ/RGO was prepared using a one-step covalent combination method under mild conditions, and the as-prepared binary nanocomposite was further characterized by SEM, TEM, AFM, EA, UV-Vis, XRD, XPS, FTIR and electrochemical analyses. The results of catalytic assays showed that enhanced DCNB bioreduction to 2,5-dichloroaniline could be achieved in the presence of 30 mg/L AHQ/RGO and the k (h(-1)) value of the AHQ/RGO-supplemented system is 7.7- and 4.2-fold greater than that of the control and GO-supplemented systems, respectively. Moreover, molecular studies showed that the genes encoding cytochromes and reductases (especially yceJ and azoR) play key roles during the reduction of DCNB by MR-1 cells and multiple electron transfer pathways are involved during AHQ/RGO-mediated DCNB bioreduction. In addition, a synergistic effect between AHQ/RGO and outer membrane proteins of MR-1 was confirmed by mutant assays and is likely responsible for the catalytic performance of AHQ/RGO. This work provides a potential application of strain MR-1 and AHQ/ RGO in enhancing the treatment of DCNB-containing wastewater. |
| WOS关键词 | EXTRACELLULAR ELECTRON-TRANSFER ; MTR RESPIRATORY PATHWAY ; CR(VI) REDUCTION ; METHYL-ORANGE ; GRAPHENE ; DEGRADATION ; BACTERIUM ; TRANSCRIPTOME ; MECHANISMS ; MEDIATORS |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000519528800062 |
| 资助机构 | National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51608519] ; Yantai Science and Technology Project [2017ZH094] ; State Key Joint Laboratory of Environment Simulation and Pollution Control (Research center for Eco-Environmental Sciences, Chinese Academy of Sciences) [19K02ESPCR] ; External Cooperation Program of Chinese Academy of SciencesChinese Academy of Sciences [133337KYSB20180015] ; Key Research Project of Frontier Science of Chinese Academy of Sciences [QYZDB-SSWDQC041] |
| 源URL | [http://ir.yic.ac.cn/handle/133337/30472]  |
| 专题 | 烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Yantai Inst Costal Zone Res, Yantai 264000, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China; 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Haikun,Han, Kunming,Hu, Xiaoke. Enhanced bioreduction of 2,5-dichlorobenzene by an AHQ/RGO binary nanocomposite through a synergistic effect with outer membrane proteins of Shewanella oneidensis MR-1[J]. CHEMICAL ENGINEERING JOURNAL,2020,389:124464. |
| APA | Zhang, Haikun,Han, Kunming,&Hu, Xiaoke.(2020).Enhanced bioreduction of 2,5-dichlorobenzene by an AHQ/RGO binary nanocomposite through a synergistic effect with outer membrane proteins of Shewanella oneidensis MR-1.CHEMICAL ENGINEERING JOURNAL,389,124464. |
| MLA | Zhang, Haikun,et al."Enhanced bioreduction of 2,5-dichlorobenzene by an AHQ/RGO binary nanocomposite through a synergistic effect with outer membrane proteins of Shewanella oneidensis MR-1".CHEMICAL ENGINEERING JOURNAL 389(2020):124464. |
入库方式： OAI收割
来源：烟台海岸带研究所
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