TiO2修饰BDD复合电极材料的制备及性能
Preparation and Properties of TiO2 Modified BDD Composite Electrode
席耀辉 1王海龙 2闫宁 3赵延军 3张锐4
作者信息
- 1. 郑州大学材料科学与工程学院,郑州 450001;郑州磨料磨具磨削研究所有限公司超硬材料磨具国家重点实验室,郑州 450001
- 2. 郑州大学材料科学与工程学院,郑州 450001
- 3. 郑州磨料磨具磨削研究所有限公司超硬材料磨具国家重点实验室,郑州 450001
- 4. 郑州航空工业管理学院,郑州 450015
- 折叠
摘要
采用水热法在掺硼金刚石(Boron-doped diamond,BDD)薄膜衬底上修饰纳米棒状TiO2,制备出具有p-n异质结结构的复合层状薄膜材料,通过环氧树脂封装制备成电极.利用扫描电子显微镜、X射线衍射分别对其形貌和物相进行表征,并在不同条件下对活性艳红X-3B模拟染料废水进行了降解.结果表明:TiO2纳米棒团聚而成的纳米束排列均匀、致密,与BDD薄膜结合紧密,TiO2为金红石相.由于二者光电协同效应,与TiO2单独光催化、BDD电极单独电化学氧化比较,采用该复合电极对活性艳红X-3B模拟染料废水的降解效率得到进一步提升.
Abstract
Boron-doped diamond (BDD) film substrate was modifed with TiO2 nanorodby a hydrothermal method. TiO2/BDD composite was further encapsulated in epoxy resin to prepare the electrode. The morphology and phase of TiO2/BDD composite materials were characterized by scanning electron microscopy and X-ray diffraction. A reactive brilliant red X-3B dye wastewater was degraded by TiO2/BDD composite electrode under different conditions. The results show that the morphology of TiO2 is nanobeam due to the aggregation of nanorods. The nanorods of TiO2 are uniform and dense in rutile phase, which are closed to the BDD film. Compared to the photo-catalysis of TiO2 and electrochemical oxidation of BDD electrode, the photoelectric catalysis of the composite electrode can further enhance the degradation rate of reactive brilliant red X-3B.
关键词
掺硼金刚石薄膜/二氧化钛/复合电极/光电催化/废水降解Key words
boron-doped diamond film/titanium dioxide/composite electrode/photoelectric catalysis/wastewater degradation引用本文复制引用
基金项目
河南省高校科技创新人才(15HASTIT009)
中国博士后科学基金(2016T90677 和 2014M561997)
郑州大学优秀青年教师发展基金(1421320044)
出版年
2018
国家科技期刊平台
NSTL
维普
万方数据