| Synthesis of mono-dispersed mesoporous Mn2O3 powders with micro-nanostructure for removing Congo red dye from aqueous solution | |
Qi, Guicai; Hai, Chunxi ; Shen, Yue; Zeng, Jinbo; Li, Xiang; Ren, Xiufeng; Sun, Yanxia; Dong, Shengde; Zhou, Yuan
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| 2019-05 | |
| 发表期刊 | ADVANCED POWDER TECHNOLOGY
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| ISSN | 0921-8831 |
| 卷号 | 30期号:5页码:930-939 |
| 摘要 | Taking the importance and significance of wastewater treatment into consideration, mono-dispersed Mn2O3 powders with sphere-like morphology and mesopore features has been firstly synthesized from the thermal decomposition of MnCO3 which is prepared via a modified carbonization method using CO2 gas as the sole carbonate source. The measured isoelectric point, the pH value at which the zeta-potential is zero, of uniformly dispersed Mn2O3 particles is 9.13. Benefiting from the surface electrostatic interaction, as-prepared Mn2O3 microparticles has high adsorption capacity up to 135.5 mg/g toward Congo red dye in aqueous solution. Accordingly, the adsorption process of Congo red by Mn2O3 microspheres could be explained by Langmuir isotherm model and the pseudo-second-order kinetic model. Especially, it is necessary to point out that the removal efficiency of Mn2O3 toward Congo red dye still be well maintained at about 90.78% even after five cycles. Therefore, as-prepared Mn2O3 powders has potential application in large-scale wastewater treatment. (C) 2019 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved. |
| DOI | 10.1016/j.apt.2019.02.007 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34097 |
| 专题 | 盐湖资源与化学实验室 中国科学院青海盐湖研究所 |
| 推荐引用方式 GB/T 7714 | Qi, Guicai,Hai, Chunxi,Shen, Yue,et al. Synthesis of mono-dispersed mesoporous Mn2O3 powders with micro-nanostructure for removing Congo red dye from aqueous solution[J]. ADVANCED POWDER TECHNOLOGY,2019,30(5):930-939. |
| APA | Qi, Guicai.,Hai, Chunxi.,Shen, Yue.,Zeng, Jinbo.,Li, Xiang.,...&Zhou, Yuan.(2019).Synthesis of mono-dispersed mesoporous Mn2O3 powders with micro-nanostructure for removing Congo red dye from aqueous solution.ADVANCED POWDER TECHNOLOGY,30(5),930-939. |
| MLA | Qi, Guicai,et al."Synthesis of mono-dispersed mesoporous Mn2O3 powders with micro-nanostructure for removing Congo red dye from aqueous solution".ADVANCED POWDER TECHNOLOGY 30.5(2019):930-939. |
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| Synthesis of mono-di（5493KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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