期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
α-MnO2对ZnO和TiO2光催化降解萘酚蓝黑活性的影响
-
1. 河北师范大学化学与材料科学学院, 河北 石家庄050024;
2. 沧州师范学院化学系, 河北 沧州061001 -
DOI：
Influence of α-MnO_2 Particles on the Photocatalytic Degradation of Naphthol Blue Black over ZnO and TiO_2
摘要/Abstract
摘要：
以萘酚蓝黑为模型污染物,采用光催化降解动力学实验研究了α-MnO2颗粒物对亚微米级商品TiO2(C),ZnO(C)和自制纳米级TiO2(N),ZnO(N)光催化活性的影响,并通过紫外-可见漫反射光谱和荧光光致发光光谱对光催化剂进行了表征.结果表明,α-MnO2能导致2种TiO2严重失活,而对2种ZnO的光催化活性影响很小.
Abstract：
The influences of α-MnO2 particles on the photocatalytic activity of the commercial ZnO and TiO2 micro-particles,and the synthesized ZnO and TiO2 nanoparticles for the degradation of naphthol blue black were investigated by using a kinetical method.The photocatalysts were characterized by UV-vis diffuse reflectance and photoluminescence spectroscopy.The results showed that the α-MnO2 particles deactivated the TiO2 catalysts significantly,but had little influence on the ZnO catalysts.
关键词
Key words：
photocatalysis
;
titanium dioxide
;
zinc oxide
;
manganese dioxide
;
deactivation