Electrochemical oxidation of reactive brilliant orange X-GN dye on boron-doped diamond anode
Electrochemical oxidation of reactive brilliant orange X-GN dye on boron-doped diamond anode
复制标题
硼掺杂金刚石阳极上活性艳橙 X-GN 染料的电化学氧化
DOI：
10.1007/s11771-018-3872-y
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发表时间：
2018-08
期刊：
影响因子：
--
通讯作者：
WEI Qiu-ping
中科院分区：
文献类型：
--
作者：
MA Li;ZHANG Ming-quan;ZHU Cheng-wu;MEI Rui-qiong;WEI Qiu-ping
在本研究中，研究了掺硼金刚石 (BDD) 阳极对活性亮橙 X-GN 染料的电化学氧化作用。 BDD电极通过热丝化学气相沉积方法沉积在铌（Nb）基底上。根据降解效率的变化，评估了膜厚度、电流密度、支持电解质浓度、初始溶液 pH 值、溶液温度和初始染料浓度等工艺参数的影响。利用扫描电镜、拉曼光谱和电化学工作站对BDD的微观结构和电化学性能进行了表征；并使用紫外-可见分光光度法估计 X-GN 的降解。此外，结果表明BDD的膜厚度对X-GN的电解有显着影响。处理3 h后，在优化的实验条件：电流密度100 mA/cm2、支持电解质浓度0.05 mol/L、初始溶液pH 3.08、溶液温度60 ℃下，颜色达到100%，总有机碳去除率达到63.2%。
In this study, the electrochemical oxidation of reactive brilliant orange X-GN dye with a boron-doped diamond (BDD) anode was investigated. The BDD electrodes were deposited on the niobium (Nb) substrates by the hot filament chemical vapor deposition method. The effects of processing parameters, such as film thickness, current density, supporting electrolyte concentration, initial solution pH, solution temperature, and initial dye concentration, were evaluated following the variation in the degradation efficiency. The microstructure and the electrochemical property of BDD were characterized by scanning electron microscopy, Raman spectroscopy, and electrochemical workstation; and the degradation of X-GN was estimated using UV-Vis spectrophotometry. Further, the results indicated that the film thickness of BDD had a significant impact on the electrolysis of X-GN. After 3 h of treatment, 100% color and 63.2% total organic carbon removal was achieved under optimized experimental conditions: current density of 100 mA/cm2, supporting electrolyte concentration of 0.05 mol/L, initial solution pH 3.08, and solution temperature of 60 °C.
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