Utilizing Waste Cement for Carbon Dioxide Sequestration and Capture: The Role of Water Content on the Growth of Calcium Carbonate
文献类型：期刊论文
| 作者 | Ma, Zihan2,3; Jiang, Long2,3; Jiang, Yi2,3; Shen, Peiliang2,3; Tao, Yong2,3; Li, Jiangshan1,4; Poon, Chi sun2,3 |
| 刊名 | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| 出版日期 | 2024-01-26 |
| 卷号 | 12期号:6页码:2273-2288 |
| 关键词 | recycled cement powder carbonation polymorphs calcium carbonate crystallization |
| ISSN号 | 2168-0485 |
| DOI | 10.1021/acssuschemeng.3c06700 |
| 英文摘要 | High-alkaline waste cement possesses significant potential for effectively capturing and sequestering carbon dioxide, transforming it into calcium-rich, highly reactive, supplementary cementitious materials. Water plays a pivotal role in facilitating this reaction, yet there is a conspicuous absence of extensive research in this domain. This study elucidates the mechanisms by which water affects the growth behavior (precipitation and crystallization) of calcium carbonate (Cc) in hydrated cement paste during carbonation. The findings indicated that the presence of water dramatically affected Cc's polymorphs, morphology, and crystal properties. With an increase in water content from RH = 55% to a liquid-solid ratio of 40, the calcite grain size underwent significant enlargement from less than 200 to over 400 nm. Moreover, as the water content increased, the different Cc polymorphs evolved into mainly calcite, and the polycrystalline Cc was transformed to monocrystalline calcite. Insufficient water elevated the local pH and ion concentration, resulting in a prolonged supersaturation duration. Meanwhile, the nanosized water film restricted the Cc growth and hindered Ostwald ripening, leading to the preservation of amorphous calcium carbonate (ACC) and poor crystallization of Cc. |
| 资助项目 | Sun Hung Kai Properties ; Research Grants Council GRF Innovation and Technology Fund |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001161567600001 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/40608]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Shen, Peiliang; Poon, Chi sun |
| 作者单位 | 1.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Wuhan 430071, Peoples R China 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong 999077, Peoples R China 3.Hong Kong Polytech Univ, Res Ctr Resources Engn Carbon Neutral, Hong Kong 999077, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Zihan,Jiang, Long,Jiang, Yi,et al. Utilizing Waste Cement for Carbon Dioxide Sequestration and Capture: The Role of Water Content on the Growth of Calcium Carbonate[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2024,12(6):2273-2288. |
| APA | Ma, Zihan.,Jiang, Long.,Jiang, Yi.,Shen, Peiliang.,Tao, Yong.,...&Poon, Chi sun.(2024).Utilizing Waste Cement for Carbon Dioxide Sequestration and Capture: The Role of Water Content on the Growth of Calcium Carbonate.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,12(6),2273-2288. |
| MLA | Ma, Zihan,et al."Utilizing Waste Cement for Carbon Dioxide Sequestration and Capture: The Role of Water Content on the Growth of Calcium Carbonate".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 12.6(2024):2273-2288. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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