酸洗
铁质
扫描电子显微镜
氯化物
穆斯堡尔谱学
化学
表征(材料科学)
材料科学
核化学
矿物学
冶金
结晶学
复合材料
纳米技术
作者
Lorena Alcaraz,Belén Sotillo,José F. Marco,Francisco José Alguacil,Paloma Fernández,Félix A. López
出处
期刊:Materials
[MDPI AG]
日期:2021-08-26
卷期号:14 (17): 4840-4840
被引量:7
摘要
As a hazardous waste, water pickling liquors must be properly treated. An alternative consists of promoting the formation of ferrous salts from this residue due to their higher ferrous content. Since FeCl2·4H2O is widely used in several applications, obtaining pure crystals of this material appears to be an interesting prospect. However, this compound has scarcely been investigated. In the present work, FeCl2·4H2O crystals were obtained from water pickling liquors. Their structural and morphological characteristics were investigated by X-ray diffraction, scanning electron microscopy as well as Mössbauer spectroscopy. In addition, the photoluminescence study of the obtained samples was also assessed. It was observed that after some aging time, the obtained crystals changed in colour from green to more yellowish. As such, the aged sample was also evaluated, and their structural characteristics were compared with the original crystals. Despite this, the obtained crystals exhibit a FeCl2·4H2O structure, which is not modified with the aging of the sample.
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