三峡大学学报(自然科学版)2011,Vol.33Issue(1):88-93,6.
TiO2纳米带负载FePcS光催化降解有毒有机污染物
Photocatalytic Degradation of Toxic Organic Pollutants Catalyzed by FePcS Immobilized on TiO2 Nanobelt
摘要
Abstract
Compound catalyst FePcS-TiO2 was prepared using TiO2 nanobelt as support to load iron-phthalocyanine tetrasulfonic acid (FePcS). UV-visible diffuse reflectance (UV-vis DRS) was employed to characterize the catalyst. The photocatalytic degradation of organic dye rhodamine B (RhB) and colorless small molecular organic substance salicylic acid (SA) were used as probe reactions to evaluate the photocatalytic activity of the catalyst. The results indicated that FePcS-TiO2 had good photocatalytic properties under visible light irradiation (λ≥420 nm). RhB can be efficiently degraded by FePcS-TiO2 under visible light irradiation with 100% decolorization after 240min and 100% mineralization rate after 14h, while SA was degraded by 83.17%under visible irradiation for 10h. The photocatalytic degradation of toxic organic pollutants was a process of deep oxidation and the oxidative process was predominated mainly by the hydroxyl radical (·OH).关键词
FePcS-TiO2/光催化/降解/矿化分类
化学化工引用本文复制引用
汪淑廉,饶志,王攀,曹婷婷,赵小蓉,黄应平..TiO2纳米带负载FePcS光催化降解有毒有机污染物[J].三峡大学学报(自然科学版),2011,33(1):88-93,6.基金项目
国家自然科学基金(20877048) (20877048)
湖北省青年杰出人才基金(5ABB030) (5ABB030)
催化材料科学湖北省暨国家民委教育部共建重点实验室开放基金项目(CHCL10007) (CHCL10007)