CAJ | 학술논문

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.
이용류철광소사제취납미Fe3O4가사폐사변폐위보,소제배경오염.채용불동방법처리류철광소사,이획취적침취액위원료,채용삼을순알수열-열해법제비납미사양화삼철(Fe3O4).고찰료불동침취액、침취액농도、삼을순알체적분수、반응온도화반응시간대산물물상화형모적영향.용X사선연사의、투사전경、격광립도의급Zeta전위의대산물진행료표정.결과표명,침취액중Fe2(SO4)3농도위0.08 mol/L、삼을순알체적분수위42.8%시,재200℃하반응2 h제비적Fe3O4정구형,립도위20~60 nm.연구결과위종합이용료류철광소사제공료일충신적도경.
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.