• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >Effect of Graphene Oxide on the Crystallization of Calcium Carbonate by C3S Carbonation
【2h】

Effect of Graphene Oxide on the Crystallization of Calcium Carbonate by C3S Carbonation

机译：氧化石墨烯对C3S碳酸化碳酸钙结晶的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The effect of graphene oxide (GO) on the crystallization of calcium carbonate (CaCO3) is explored in this paper. Precipitation of CaCO3 was carried out by bubbling carbon dioxide (CO2) through tricalcium silicate (C3S) hydration solution with different graphene oxide admixture contents (0.2%, 1% and 2% mass ratios based on C3S). The polymorph, morphology, crystal size and particle size of CaCO3 were evaluated using X-ray diffraction (XRD), an environmental scanning electronic microscope (ESEM), and laser particle size analysis. The results showed that addition of GO was able to promote the conversion of CaCO3 to a calcite crystal phase with higher thermal stability and crystallinity than the control. However, as the dosage of GO increased, the growth of the calcite crystal particles was somewhat suppressed, resulting in a decrease in the crystal particle size and a narrow particle size distribution. When the amount of GO was 0.2%, 1% and 2%, the crystal size of the calcite was 5.49%, 12.38%, and 24.61% lower than that of the sample without GO, respectively, while the particle size of the calcite also decreased by 17.21%, 39.26%, 58.03%, respectively.
机译：本文探讨了氧化石墨烯（GO）对碳酸钙（CaCO3）结晶的影响。 CaCO3的沉淀是通过将二氧化碳（CO2）鼓入硅酸三钙（C3S）水化溶液中进行的，该水合溶液具有不同的氧化石墨烯混合物含量（基于C3S的质量比为0.2％，1％和2％）。使用X射线衍射（XRD），环境扫描电子显微镜（ESEM）和激光粒度分析评估了CaCO3的多晶型物，形态，晶体尺寸和粒度。结果表明，GO的加入能够促进CaCO3向方解石晶相的转化，其热稳定性和结晶度均高于对照。但是，随着GO的添加量的增加，方解石晶体颗粒的生长受到一定程度的抑制，导致晶体粒径减小和粒径分布变窄。当GO的含量为0.2％，1％和2％时，方解石的晶体尺寸分别比不含GO的样品低5.49％，12.38％和24.61％，而方解石的粒径分别下降17.21％，39.26％，58.03％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号