A non-specific surface area dominated catalytic ozonation with CuO modified beta-MnO2 in efficient oxalic acid degradation
文献类型：期刊论文
| 作者 | Ke, Lingjie ; Liu, Jing; Sun, Lei; Pan, Fei; Yuan, Xiangjuan; Xia, Dongsheng
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| 刊名 | JOURNAL OF WATER PROCESS ENGINEERING
 |
| 出版日期 | 2022-04 |
| 卷号 | 46期号:0页码:102535 |
| 关键词 | ACTIVE INTERFACE AQUEOUS-SOLUTION OXYGEN VACANCY OXIDATION OXIDE MNO2 PEROXYMONOSULFATE ACTIVATION OZONE PERFORMANCE |
| ISSN号 | 2214-7144 |
| 英文摘要 | In this paper, a series of copper oxide supported manganese dioxide (CuXMnT) composites were prepared by the hydrothermal and deposition precipitation methods. The effects of different hydrothermal temperatures (100 degrees C-180 degrees C) and copper doping amounts (1-10 mM) on the structural and physicochemical properties of CuXMnT composites were systematically investigated. The BET, SEM, and XRD characterizations revealed that the CuXMnT composites exhibited a typical rod-like structure. Besides, with the increscent hydrothermal tem-perature, the BET specific surface area decreased and the crystal form of the composites changed from alpha-MnO2 to beta-MnO2. The Cu1Mn180 with low specific surface area (3.277 m(2) g(-1)) exhibited the splendid catalytic ozonation activity and the oxalic acid (OA) removal rate reached 87.5% in O-3/Cu1Mn180 process compared with single ozonation (3.2%). Additionally, it was noteworthy that the excellent catalytic performance of Cu1Mn180 (91.8% of OA removal rate) at pH 3.0 was resulted from the electrostatic adsorption. While, the complexation played a vital role for OA degradation at pH 6.0 and 9.0 with the OA removal efficiencies of 87.5 and 70.3% within 30 min, respectively. Furthermore, Cu1Mn180 could obtain more than 90.9% of OA removal rate during multiple consecutive cycles, representing the satisfactory stability and reusability. Moreover, the multivalent Mn, the structural oxygen species, and Cu species played the key roles for OA degradation in O-3/Cu1Mn180 process at pH 6.0 via the TEM, ESR, XPS and O2-TPD characterizations. Overall, the results presented a promising alternative material for efficient catalytic ozonation application in water. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47192]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 2.Wuhan Text Univ, Sch Environm Engn, Wuhan 430073, Peoples R China 3.Engn Res Ctr Clean Prod Text Dyeing & Printing, Minist Educ, Wuhan 430073, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ke, Lingjie,Liu, Jing,Sun, Lei,et al. A non-specific surface area dominated catalytic ozonation with CuO modified beta-MnO2 in efficient oxalic acid degradation[J]. JOURNAL OF WATER PROCESS ENGINEERING,2022,46(0):102535. |
| APA | Ke, Lingjie,Liu, Jing,Sun, Lei,Pan, Fei,Yuan, Xiangjuan,&Xia, Dongsheng.(2022).A non-specific surface area dominated catalytic ozonation with CuO modified beta-MnO2 in efficient oxalic acid degradation.JOURNAL OF WATER PROCESS ENGINEERING,46(0),102535. |
| MLA | Ke, Lingjie,et al."A non-specific surface area dominated catalytic ozonation with CuO modified beta-MnO2 in efficient oxalic acid degradation".JOURNAL OF WATER PROCESS ENGINEERING 46.0(2022):102535. |
入库方式： OAI收割
来源：生态环境研究中心
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