CAJ | 학술논문

采用HFCVD方法制作了大面积Ti衬底掺硼金刚石(BDD)电极，并通过SEM、 Raman等手段对BDD涂层形貌和质量进行了表征。以模拟苯酚废水作为研究对象，考察大面积BDD电极作为阳极材料的电化学方法对难降解酚类物质的降解速率和效果，主要研究了电流密度、槽压、电极间距、溶液pH值等因素对降解效果的影响，通过检测废水CODCr浓度的变化来探究不同试验条件下BDD电极对苯酚模拟废水的处理效果。结果表明，当电流密度在40~100 mA/cm2、槽压为8~10 V、电极间距为10 mm、以及弱酸条件下对苯酚废水的处理效果最好。
채용HFCVD방법제작료대면적Ti츤저참붕금강석(BDD)전겁，병통과SEM、 Raman등수단대BDD도층형모화질량진행료표정。이모의분분폐수작위연구대상，고찰대면적BDD전겁작위양겁재료적전화학방법대난강해분류물질적강해속솔화효과，주요연구료전류밀도、조압、전겁간거、용액pH치등인소대강해효과적영향，통과검측폐수CODCr농도적변화래탐구불동시험조건하BDD전겁대분분모의폐수적처리효과。결과표명，당전류밀도재40~100 mA/cm2、조압위8~10 V、전겁간거위10 mm、이급약산조건하대분분폐수적처리효과최호。
The large area Ti substrate boron doped diamond (BDD) electrode was prepared using HFCVD method, the morphology and quality of the BDD were characterized by SEM, Raman and some other means. Tak-ing stimulant phenol wastewater as the research object, the degradation rate and removal effect of phenolic sub-stance by electrochemical method with the said large area BDD as the anode material, was studied. The influ-ences of current density, voltage, electrode spacing and solution pH value on degradation effect were studied through detecting the variation of CODCr concentration of the stimulant wastewater during the treatment process. The results showed that, the optimal treatment effect could be obtained at weak acid condition when the current density was 40-100 mA/cm2, the voltage was 8-10 V, and the electrode spacing was 10 mm.