Solvent Effect on the Solvothermal Synthesis of Mesoporous NiO Catalysts for Activation of Peroxymonosulfate to Degrade Organic Dyes
文献类型：期刊论文
| 作者 | Gu, Yajie; Sun, Shengrui; Liu, Yangqiao; Dong, Manjiang; Yang, Qingfeng |
| 刊名 | ACS OMEGA
 |
| 出版日期 | 2019-10-29 |
| 卷号 | 4期号:18页码:17672 |
| ISSN号 | 2470-1343 |
| DOI | 10.1021/acsomega.9b01883 |
| 文献子类 | Article |
| 英文摘要 | In this work, we successfully prepared three different mesoporous NiO nanostructures with preferential (111) planes using three different solvents-water, a water-ethanol mixture, and a water-ethylene glycol mixture. The NiO nanosheets prepared from the water-ethylene glycol mixture and denoted as NiO-EG showed a nanosheet morphology thinner than 10 nm, whereas the water-ethanol and water samples were 30-40 nm and above 100 nm thick, respectively. The NiO-EG catalyst was found to exhibit a high catalyzing ability to activate peroxymonosulfate (PMS) for decoloring dyes, by which 94.4% of acid orange 7 (AO7) was degraded under the following reaction conditions: AO7 = 50 mg/L, catalyst = 0.2 g/L, PMS = 0.8 g/L, pH = 7, and 30 min reaction time. The dye degradation rate was investigated as a function of the catalyst dosage, pH, and dye concentration. According to quenching experiments, it was found that SO4 center dot-, HO center dot, and O-2(center dot-) were the dominant radicals for AO7 degradation, and oxygen vacancies played a significant role in the generation of radicals. High surface area, thin flaky structure, rich oxygen vacancies, fast charge transport, and low diffusion impedance all enhanced the catalytic activity of NiO-EG, which exhibited the highest degradation ability due to its abundant accessible active sites for both adsorption and catalysis. |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/26758]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Gu, Yajie,Sun, Shengrui,Liu, Yangqiao,et al. Solvent Effect on the Solvothermal Synthesis of Mesoporous NiO Catalysts for Activation of Peroxymonosulfate to Degrade Organic Dyes[J]. ACS OMEGA,2019,4(18):17672. |
| APA | Gu, Yajie,Sun, Shengrui,Liu, Yangqiao,Dong, Manjiang,&Yang, Qingfeng.(2019).Solvent Effect on the Solvothermal Synthesis of Mesoporous NiO Catalysts for Activation of Peroxymonosulfate to Degrade Organic Dyes.ACS OMEGA,4(18),17672. |
| MLA | Gu, Yajie,et al."Solvent Effect on the Solvothermal Synthesis of Mesoporous NiO Catalysts for Activation of Peroxymonosulfate to Degrade Organic Dyes".ACS OMEGA 4.18(2019):17672. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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