“珠串”堆叠超结构的介孔铁酸锌的制备与表征
以硫酸亚铁和硝酸锌为铁源和锌源,十二烷基硫酸钠为颗粒尺寸控制剂,草酸钠为沉淀剂,通过草酸盐的热分解制备了介孔铁酸锌。利用x射线粉末衍射、热分析、红外光谱、场发射扫描电镜和氮气吸附一脱附等手段对不同表面活性剂加入量制备的样品的晶相组成和表面结构进行了表征,结果显示,Fe2+和十二烷基硫酸钠的摩尔比为10:1,煅烧温度为500℃时制备的铁酸锌有较大的表面积(82.0m2·g-1),BJH平均孔径为12.5nm,孔体积为0.257cm3·g-1,得到的介孔铁酸锌具有由尺寸均一的纳米粒子规则排列而形成的“珠串”堆叠超结构。...
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Published in | 材料工程 no. 10; pp. 24 - 28 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
福州大学化学化工学院,福州,350108
2013
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Subjects | |
Online Access | Get full text |
ISSN | 1001-4381 1001-4381 |
DOI | 10.3969/j.issn.1001-4381.2013.10.004 |
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Summary: | 以硫酸亚铁和硝酸锌为铁源和锌源,十二烷基硫酸钠为颗粒尺寸控制剂,草酸钠为沉淀剂,通过草酸盐的热分解制备了介孔铁酸锌。利用x射线粉末衍射、热分析、红外光谱、场发射扫描电镜和氮气吸附一脱附等手段对不同表面活性剂加入量制备的样品的晶相组成和表面结构进行了表征,结果显示,Fe2+和十二烷基硫酸钠的摩尔比为10:1,煅烧温度为500℃时制备的铁酸锌有较大的表面积(82.0m2·g-1),BJH平均孔径为12.5nm,孔体积为0.257cm3·g-1,得到的介孔铁酸锌具有由尺寸均一的纳米粒子规则排列而形成的“珠串”堆叠超结构。 |
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Bibliography: | 11-1800/TB ZnFe2 04 ; mesoporous ; coprecipitation ; superstructure of stacking strings of bead Mesoporous ZnFe2O4 was successfully synthesized through the reaction of Zn2+ , Fe2+ and C202/4- using sodium dodecyl sulfate (SDS) as size-controlling reagent. The characterizations were done by X-ray powder diffraction (XRD), differential thermal analysis-thermo gravimetric analysis (DTA-TG), fourier transform-infrared spectroscopy (FT-IR), field emission scanning electronic mi- croscopy (FE-SEM), nitrogen adsorption-desorption measurement, showing that mesoporous Zn- Fe204 can be obtained after calcined at 500℃ with Fe2+ : SDS (mol)=10 : 1, its surface area is 82.0m2·g-1, BJH average diameter is 12.5nm, pore volume is 0. 257cm3 .g-1 and the mesoporous ZnFe204 has superstructure of stacking strings of bead. SHEN Shui-fa,LIU Yu-hong,LI Ling,PAN Hai-bo (College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108, China) |
ISSN: | 1001-4381 1001-4381 |
DOI: | 10.3969/j.issn.1001-4381.2013.10.004 |