摘要
以三氯化钌和氧化石墨烯为原料,制得复合材料Ru/RGO,对DSA电极表面进行修饰.以修饰后的DSA电极为阳极、钛网电极为阴极,电催化氧化处理酸性橙Ⅱ模拟废水.研究发现,在酸性橙Ⅱ模拟废水浓度为20mg/L、电压12V、室温条件下电催化处理40min,脱色率达95%以上,反应趋于平衡;随电压升高、温度升高,反应加快;紫外光同时照射脱色率略有增加.动力学分析表明,酸性橙Ⅱ溶液的脱色反应为假一级反应,其表观活化能为35.9kJ/mol.Ru/RGO的SEM表征发现Ru镶嵌在RGO表面,并且高度分散,粒径为20nm左右,表明提高了贵金属钌的利用率.
Ru/RGO was prepared by Graphite oxide (GO) and ruthenium chloride (RuCl 3·3H 2O) to modify DSA electrode surface. With the modified DSA anode and titanium mesh cathode was employed, 100 mL 20 mg/L acid orange Ⅱ simulated wastewater was treated in a cylindrical quartz reactor in which Na 2SO 4 was added as supported electrolyte. Then the reaction was carried out at different voltage and different temperature. It was found that the decolorization efficiency was increased with temperature rising. The kinetics analysis showed that the reaction was a first-order reaction, and the apparent activity energy (Ea) was calculated to be 35.9 kJ/mol. By SEM characterization of the Ru/RGO, it was found that Ru is highly dispersed on the surface of RGO, and the particle size of Ru was about 20 nm, which enhanced the utilization of ruthenium.
作者
王海荣
张龙龙
李国亭
王帅
WANG Hairong;ZHANG Longlong;LI Guoting;WANG Shuai(School of Environmental and Municipal Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《河南教育学院学报（自然科学版）》
2019年第3期32-35,共4页
Journal of Henan Institute of Education(Natural Science Edition)
基金
河南省教育厅科学技术研究重点项目(14B150043)
