BDD薄膜电极电化学氧化降解低浓度茜素红.pdf

化进展
2014年第33卷第1期
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
233
mccree
研究开发
3403401o4o.
新型多孔Ti/BDD薄膜电极电化学氧化降解低浓度茜素红
周如彬',冉二燕2,孙见蕊,张德文,张宝昌
('长春工业大学化学与生命科学学院,吉林长春130022:2长春工业大学化学工程学院,吉林长春130022
摘要:运用热丝化学气相沉积( HFCVD)的方法制备了以多孔钛为基体的掺杂硼金刚石( porous Ti/BDD)薄膜
电极,并测试了它的主要物理性质,SEM表明金刚石相生长良好并且能均绚地分布在基体表面和孔内, Raman
光谱表明电极的金刚石相纯而且质量很高。采用循环伏安法研究了酸性条件下萬素红在多孔 YBDD电极上的电
氧化行为。通过改变旧极电流密度、支持电解质NaSO4的浓度来研究素红在多孔 TIBDD电极上的电化学氧
化降解的效果影响。结果表明:电流密度40mA/em2、支持电解质浓度0. 5 mol/L为较理想的工艺参数,总电流
效率达到30.2%。在相同条件下,发现多孔Ti/BDD薄膜电极氧化降解茜素红与平板 Ti/BDD簿膜电极相比具有
更高的电流效率。紫外可见光光谵证实了多孔iBDD电极能够有效地电氧化降解茜素红。
关键词:多孔钛;掺杂硼金刚石薄膜电极;菡素红;电化学氧化
中图分类号:O646.541
文献标志码:A
文章编号:1000-6613(2014)01~0233~06
DOI:10.3969issn.1000613.2014.01.042
New porous Ti BDD tilm electrode for electrochemical oxidation Alizarin
Red at a low concentration
ZHOU Rubin RAN Eryan, Sunjianrui, ZHANG Dewen ZHANG Baochang
School of Chemistry and Life Science, Changchun University of Technology, Changchun 130022, Jilin, China
2 School of Chemical Engineering, Changchun University of Technology, Changchun 130022, Jilin, China)
Abstract Boron doped diamond films on porous Ti substrates were prepared by hot-filament chemical
vapor deposition HFCVD )and its main physical behaviors were studied. SEM analysis showed that
diamond phase can grow well and distributed on the surface and the hole of the substrate. Ramen
spectroscopy showed that the electrode had a pure and high quality diamond phase. The Alizarin Red
electrochemical oxidation behavior had been studied with porous Ti/BDD electrode under acidic
conditions by cyclic voltammetry. The effects of electrochemical oxidation degradation were
investigated by change the anodic current density and the concentration of supporting electrolyte. The
results showed that the anodic current density 40 MA/cm, supporting electrolyte concentration was the
ideal technological parameters and the general current efficiency was 30.2%. The results also showed
that the porous Ti/BDD film electrode electrochemical oxidation Alizarin Red had a higher current
efficiency compared with flat Ti/BDD film electrode in the same condition. The results of Uv-visible
spectroscopy detection confirmed that Alizarin Red can be degraded efficiently by electrochemical
oxidation
Key words: porous Ti; BDD film electrode; Alizarin Red; elcctrochemical oxidation
目前有机染料废水的处理是比较困难的。它具收稿日期:20307405:修改稿日期:20130809
有色度高、成分复杂、难生化降解、毒性大以及无第ー作者:用如彬199ー),男、士研究生,研究方向为金刚
机盐含量高的特点,若直接将它排入水中会导致生制备与应用。B- mail zhourubin29gI26com