Chloride Adsorption Capacity of Monocarbonate: The Importance of Iron Doping
文献类型：期刊论文
| 作者 | Huang, Xiao; Tao, Yong; Yang, Lu; Wang, Fazhou; Hu, Shuguang |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2022-05-02 |
| 卷号 | 10期号:17页码:5621 |
| ISSN号 | 2168-0485 |
| 关键词 | tricalcium aluminate tetracalcium aluminoferrite monocarbonate chloride adsorption Fe doped |
| 英文摘要 | Resistance to chloride penetration is a concerned durability issue to ordinary Portland cement (OPC) based materials used in the marine environment. Monocarbonate has become an increasingly common hydration product observed in OPC-based materials and plays an important role in chloride adsorption. The Portland cement used in ocean engineering has a notably higher C(4)AF content than C(3)A, and C(4)AF has become a particularly important aluminate phase in it. However, few studies have focused on the discrepancy in the chloride-binding capabilities of C(3)A hydrates and C(4)AF hydrates. The objective of this paper is to study the discrepancies in chloride adsorption between undoped and Fe-doped monocarbonates. The results suggest that the Fe-doped C-4(A,F)(C) over barH(11) exhibits superior chloride adsorption than undoped C(4)A (C) over barH(11) because the doping of Fe weakens the restriction of the surrounding hydrogen bond connected to CO32- in its interlayer. A pseudo-second-order kinetic model is more suitable for the characterization of the chloride adsorption process on monocarbonates. Freundlich isotherm is favorable to fit the experimental data of chloride adsorption by the monocarbonate. This study holds great promise for improving the chloride penetration resistance of Portland cement. |
| 学科主题 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000823574600001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34988]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Wuhan University of Technology; Wuhan University of Technology; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Huang, Xiao,Tao, Yong,Yang, Lu,et al. Chloride Adsorption Capacity of Monocarbonate: The Importance of Iron Doping[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2022,10(17):5621. |
| APA | Huang, Xiao,Tao, Yong,Yang, Lu,Wang, Fazhou,&Hu, Shuguang.(2022).Chloride Adsorption Capacity of Monocarbonate: The Importance of Iron Doping.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,10(17),5621. |
| MLA | Huang, Xiao,et al."Chloride Adsorption Capacity of Monocarbonate: The Importance of Iron Doping".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 10.17(2022):5621. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。