摘要
采用阳极氧化法制备了I掺杂TiO2纳米管阵列(I-doped TiO_(2) Nanotubes Arrays, ITNA)光阳极,该电极表现出比TNA更加优异的降解性能.将ITNA与Pt电极组合得到的平面光催化燃料电池(planar Photocatalytic Fuel Cell, p-PFC)在亚甲基蓝(Methylene Blue, MB)浓度为6 mg·L^(–1)、极板间距为1.0 cm时脱色率达到最大,为93.1%. MB的降解发生在ITNA表面,为限速步骤.对比了p-PFC和传统PFC结构对MB和其他有机物的降解, p-PFC中h+和·OH的产生和传质优于其他结构,具有更高的光催化性能.
The photoanode of I-doped TiO_(2) nanotube arrays(ITNA) prepared by anodization exhibited better degradation performance than TNA. The planar photocatalytic fuel cell(p-PFC) obtained by combining ITNA and Pt electrodes achieved a maximum decolorization rate of 93.1% when the concentration of methylene blue(MB) was 6 mg·L^(–1) and the electrode plate spacing was 1.0 cm. The degradation of MB occurred on the surface of ITNA, which was a rate-limiting step. Compared to other structures, p-PFC had a higher photocatalytic performance and better production of h+ and ·OH, while degrading MB and other organics.
作者
周君
席清华
黄宜强
聂耳
孙卓
ZHOU Jun;XI Qinghua;HUANG Yiqiang;NIE Er;SUN Zhuo(Engineering Research Center for Nanophotonics and Advanced Instrument,Ministry of Education,East China Normal University,Shanghai 200062,China)
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2021年第1期165-175,I0001-I0009,共20页
Journal of East China Normal University(Natural Science)
基金
上海市科委社发处项目(19DZ1205102)。
关键词
平面光催化燃料电池
二氧化钛纳米管阵列
I掺杂
亚甲基蓝
planar photocatalytic fuel cell(p-PFC)
TiO_(2)nanotubes arrays(TNA)
I-doped
methylene blue(MB)
