氧化石墨烯-镍铝/层状双金属氢氧化物-碳纤维复合材料的制备及其电吸附去除水中2,6-二氯苯酚

金属功能材料, 2013, 20(5): 32-38.

氧化石墨烯-镍铝/层状双金属氢氧化物-碳纤维复合材料的制备及其电吸附去除水中2,6-二氯苯酚

吴家安 ^1, , 包星晨 ^2, , 付亚 ^3, , 徐思远 ^4, , 朱晓辉 ^5,

1.合肥工业大学化学工程学院,安徽合肥230009

2.合肥工业大学化学工程学院,安徽合肥230009

3.合肥工业大学化学工程学院,安徽合肥230009

4.合肥工业大学化学工程学院,安徽合肥230009

5.合肥工业大学化学工程学院,安徽合肥230009

关键词：化学镀镍废液 , 石墨烯 , 镍铝层状双金属氢氧化物 , 碳纤维 , 2,6-二氯苯酚 , 电吸附

Preparation of Graphene Oxide-NiAl/Layered Double Hydroxide-Carbon Fibers Composite Material and Electrosorption 2,6-dichlorophenol in Aqueous Solution

WU Jia-an ^1, , BAO Xing-chen ^2, , FU Ya ^3, , XU Si-yuan ^4, , ZHU Xiao-hui ^5,

1.合肥工业大学化学工程学院,安徽合肥230009

2.合肥工业大学化学工程学院,安徽合肥230009

3.合肥工业大学化学工程学院,安徽合肥230009

4.合肥工业大学化学工程学院,安徽合肥230009

5.合肥工业大学化学工程学院,安徽合肥230009

Keywords： the spent electroless nickel plating baths , graphene , nickel-aluminium layered double metal hydroxide , 2,6-dichlorophenol , electrosorption ,

在化学镀镍废水溶液中,通过一种有效回收镍的方法,制备了以硝酸根为层间阴离子的氧化石墨烯-镍铝/层状双金属氢氧化物-碳纤维(GO-NiAl/LDHs-CFs)复合材料.采用傅立叶红外光谱仪、场发射扫描电子显微镜和X-射线衍射仪对制备的GO-NiAl/LDHs-CFs的表面形貌及结构进行了表征.将其用于电吸附处理水中2,6-二氯苯酚,考察了2,6-二氯苯酚初始浓度、电位、温度及时间等因素对电吸附效果的影响.结果显示:在0.1 mol/LNa2SO4溶液中,1.0 mmol/L初始浓度,0.2V电位,25℃,4h吸附时间,2,6-二氯苯酚的饱和吸附量为392.46mg/g.动力学和热力学研究表明,电吸附过程符合伪二阶动力学模型和Langmuir吸附模型,是自发的放热过程.

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