Manufacturing 3D nano-porous architecture for boron-doped diamond film to efficient abatement of organic pollutant: Synergistic effect of hydroxyl radical and sulfate radical
文献类型：期刊论文
| 作者 | Lu, Zhigang2,3; Liu, Lusheng2; Gao, Weichun1,4; Zhai, Zhaofeng2; Song, Haozhe; Chen, Bin2,3; Zheng, Ziwen2,3; Yang, Bing2,3; Geng, Cong1,4; Liang, Jiyan1,4 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 302页码:10 |
| ISSN号 | 1383-5866 |
| 关键词 | Boron -doped diamond Porous Film Electrochemical advanced oxidation Hydroxyl radical Sulfate radical |
| DOI | 10.1016/j.seppur.2022.122080 |
| 通讯作者 | Jiang, Xin(xjiang@imr.ac.cn) ; Huang, Nan(nhuang@imr.ac.cn) |
| 英文摘要 | Electrochemical advanced oxidation process (EAOP) has caught increasing attention in purification of organic wastewater. However, its degradation performance is chiefly relevant to electrode micro-structure and radical species. Herein, the three-dimensional (3D) nano-porous boron-doped diamond (BDD) film with controllable nano-pore size is tailored for enhancing the production of hydroxyl radical (center dot OH) and activating sulfate to sulfate radical (SO4 center dot-) in EAOP. The nano-porous BDD film favors interconnected porous structure, channel-like pores with size ranged from 10 nm to 1 mu m, highly improved electron-transfer rate and large oxygen evolution po-tential (>2.0 V). It is effective for elimination of p-nitrophenol (PNP) with pseudo first-order kinetics rate of 1.14 x 10-2 min-1 and remove rate of 92.43 % after 180 min. The indirect oxidation is the dominant mechanism of PNP degradation. Benefited from enhanced active surface area and fast mass diffusion based on 3D inter-connected porous channel, the generation of center dot OH increases from 1.41 mM to 2.20 mM after 180 min, which not only eliminates polymer intermediate, but also signally stimulates the degradation efficiency. Additionally, SO4 center dot-is produced by activation of sulfate on the nano-porous BDD film, resulting in the 79.58 % of remove rate of chemical oxygen demand in Na2SO4 which is higher than that in NaNO3 (55.20 %). Oxidation of PNP with radical quenchers is conducted and PNP remove rate slightly decreases with addition of ethanol compared to that in presence of tert-butanol, indicating both center dot OH and SO4 center dot-contribute to the oxidation of PNP but center dot OH is more important. Based on intermediate characterization, it's found that detachment of nitro, abstraction of hydrogen atom, cleavage of aromatic ring and decarboxylation reactions rapidly occur and effectively accelerate the mineralization of organic pollutant. This study enriches the EAOP application of nano-grade porous BDD film and broadens the aspect of designing porous electrode in the environment fields. |
| 资助项目 | Jie Bang Gua Shuai Key Technologies R&D Program of Liaoning Province[2021JH1/10400031] ; Instrument Development Project of Shenyang National Laboratory for Materials Science[L2020E08] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000876088100004 |
| 资助机构 | Jie Bang Gua Shuai Key Technologies R&D Program of Liaoning Province ; Instrument Development Project of Shenyang National Laboratory for Materials Science |
| 源URL | [http://ir.imr.ac.cn/handle/321006/176470]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jiang, Xin; Huang, Nan |
| 作者单位 | 1.Shenyang Univ Technol, Sch Environm & Chem Engn, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 4.Liaoning Prov Res Ctr Wastewater Treatment & Reuse, Shenyang 110870, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Zhigang,Liu, Lusheng,Gao, Weichun,et al. Manufacturing 3D nano-porous architecture for boron-doped diamond film to efficient abatement of organic pollutant: Synergistic effect of hydroxyl radical and sulfate radical[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,302:10. |
| APA | Lu, Zhigang.,Liu, Lusheng.,Gao, Weichun.,Zhai, Zhaofeng.,Song, Haozhe.,...&Huang, Nan.(2022).Manufacturing 3D nano-porous architecture for boron-doped diamond film to efficient abatement of organic pollutant: Synergistic effect of hydroxyl radical and sulfate radical.SEPARATION AND PURIFICATION TECHNOLOGY,302,10. |
| MLA | Lu, Zhigang,et al."Manufacturing 3D nano-porous architecture for boron-doped diamond film to efficient abatement of organic pollutant: Synergistic effect of hydroxyl radical and sulfate radical".SEPARATION AND PURIFICATION TECHNOLOGY 302(2022):10. |
入库方式： OAI收割
来源：金属研究所
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