硫铁矿烧渣水热-热解法制备纳米Fe3O4

化工进展

硫铁矿烧渣水热-热解法制备纳米Fe3O4

江元汝1，张忠奎1，黄永萱1，李兆2

1西安建筑科技大学理学院，陕西西安 710055；2西安建筑科技大学材料与矿资学院，陕西西安 710055

出版日期:2013-05-05 发布日期:2013-05-25

Preparation of nano-Fe3O4 from pyrite cinders by hydrothermal- thermolysis method

JIANG Yuanru1，ZHANG Zhongkui1，HUANG Yongxuan1，LI Zhao2

1School of Science，Xi’an University of Architecture and Technology，Xi’an 710055，Shaanxi，China；2School of Materials and Mineral Resources，Xi’an University of Architecture and Technology，Xi’an 710055，Shaanxi，China

Online:2013-05-05 Published:2013-05-25

摘要/Abstract

摘要： 利用硫铁矿烧渣制取纳米Fe3O4可使废渣变废为宝，消除环境污染。采用不同方法处理硫铁矿烧渣，以获取的浸取液为原料，采用三乙醇胺水热-热解法制备纳米四氧化三铁（Fe3O4）。考察了不同浸取液、浸取液浓度、三乙醇胺体积分数、反应温度和反应时间对产物物相和形貌的影响。用X射线衍射仪、透射电镜、激光粒度仪及Zeta电位仪对产物进行了表征。结果表明，浸取液中Fe2(SO4)3浓度为0.08 mol/L、三乙醇胺体积分数为42.8%时，在200 ℃下反应2 h制备的Fe3O4呈球形，粒度为20～60 nm。研究结果为综合利用了硫铁矿烧渣提供了一种新的途径。

关键词: 硫铁矿烧渣, 水热-热解法, 三乙醇胺, 纳米Fe3O4

Abstract: The preparation of nano-Fe3O4 using pyrite cinder can turn waste into wealth，and eliminate environmental pollution at the same time. Nano-Fe3O4 was prepared by the hydrothermal- thermolysis method in the presence of triethanolamine using the leachate from leaching pyrite cinders with different acids. The effects of leaching concentration of acids，concentrations of the leachate and triethanolamine，reaction temperature and time were discussed. The structure and morphology of the prepared nano-Fe3O4 were characterized by X-ray diffraction (XRD)，transmission electron microscopy (TEM)，laser particle size and Zeta potential analyzer. The results showed that nano-spherical Fe3O4 with particle size of 20—60 nm could be prepared by reaction for 2h at 200℃ with Fe2(SO4)3 concentration of the leachate 0.08 mol/L and concentration of triethanolamine 42.8% (V/V). The experiment provided a method for comprehensive utilization of pyrite cinder.

Key words: pyrite cinders, hydrothermal-thermolysis method, triethanolamine, nano-Fe3O4

江元汝1，张忠奎1，黄永萱1，李兆2. 硫铁矿烧渣水热-热解法制备纳米Fe3O4[J]. 化工进展.

JIANG Yuanru1，ZHANG Zhongkui1，HUANG Yongxuan1，LI Zhao2. Preparation of nano-Fe3O4 from pyrite cinders by hydrothermal- thermolysis method[J]. Chemical Industry and Engineering Progree.

[1]	余兰兰1，宋健1，郑凯2，郭磊1. 有机阳离子絮凝剂的制备及用于含油污泥脱油效果研究[J]. 化工进展, 2014, 33(05): 1285-1289.
[2]	刘培, 江健, 刘宗宽, 张磊, 贺延龄. 双酸法提取硫铁矿烧渣中铁[J]. 化工学报, 2013, 64(7): 2619-2624.
[3]	欧爱良, 余刚, 胡波年, 何晓梅, 张俊, 易海波, 陈云. 三乙醇胺在镁合金阳极氧化中的作用 [J]. 化工学报, 2009, 60(8): 2118-2123.
[4]	乔楠，张静，张金榜，孙伟，于大禹. 纳米Fe₃O₄负载好氧反硝化菌脱氮除磷性能 [J]. CIESC Journal, 2009, 28(11): 2058-.