Applied investigation on the interaction of hazardous elements binding on ultrafine and nanoparticles in Chinese anthracite-derived fly ash
Applied investigation on the interaction of hazardous elements binding on ultrafine and nanoparticles in Chinese anthracite-derived fly ash
复制标题
中国无烟煤粉煤灰中有害元素与超细颗粒和纳米颗粒结合相互作用的应用研究
DOI：
10.1016/j.scitotenv.2011.12.069
复制
发表时间：
2012-03-01
影响因子：
9.8
通讯作者：
Hower, James C.
中科院分区：
文献类型：
--
作者：
Silva, Luis F. O.;Jasper, Andre;Hower, James C.
用多方面的仪器方法测定了中国两个电厂燃煤飞灰的化学和矿物学。技术包括传统的光学显微镜。X射线衍射法、化学分析以及各种电子束方法。安文(松枣煤田)飞灰的汞含量高于滇东(滇东)飞灰的汞含量，这可能是由于安文飞灰中的碳和氯含量较高。这两种飞灰来源都含有各种非晶态和纳米晶的含有微量元素的颗粒，既与多壁碳纳米管有关，也作为独立于碳的颗粒。(C)2012爱思唯尔B.V.保留所有权利。
A multifaceted instrumental approach was employed to determine the chemistry and mineralogy of pulverized-coal-combustion fly ashes from two Chinese power plants. Techniques included traditional optical microscopy. X-ray diffraction, and chemical analysis along with a variety of electron beam methods. The aim is to demonstrate and bring together the wide variety of procedures dealing with F as the key element of concern, and determining its location in the mineral nanoparticles.The Hg content of the Anwen (Songzao coalfield) fly ashes is higher than that of the Diandong (East Yunnan) fly ashes, possibly owing to the greater C and Cl in the Anwen fly ashes. Both fly ash sources contain a variety of amorphous and nano-crystalline trace-element-bearing particles, both associated with multi-walled carbon nanotubes and as particles independent of carbons. (C) 2012 Elsevier B.V. All rights reserved.