Photocatalytic inhibition of cyanobacterial growth using silver-doped TiO2 under UV-C light

被引：10

作者：

Liao Xingsheng ^{[2
]}

Wang Xing ^{[2
]}

Zhao Kaihong ^{[1
]}

Zhou Ming ^{[1
]}

机构：

[1] Huazhong Agr Univ, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China

[2] Huazhong Univ Sci & Technol, Coll Environm Sci & Engn, Wuhan 430074, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2009年 / 24卷 / 03期

基金：

中国国家自然科学基金;

关键词：

silver ions doped TiO2; photocatalysis; UV-C irradiation; Anabaena sp PCC 7120; microcystis aeruginosa; lipid peroxidation; SUPEROXIDE-DISMUTASE; OXYGEN; PLANTS; ACID;

D O I：

10.1007/s11595-009-3402-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Capacity of the silver-doped TiO2 under UV-C light to restrain cyanobacterial growth was explored with Anabaena sp. PCC 7120 and Microcystis aeruginosa as test species. The survival, chlorophyll bleaching, photosynthetic activity, DNA breakages, antioxidant enzyme activities, lipid peroxidation, and cellular morphologic structure of test cyanobacteria were analyzed. The results indicate that the test cyanobacteria with UV-C photocatalysis by silver-doped TiO2 sufferd from effects of reactive oxygen species, which promote the damage of the cell wall and the peroxidation of cell membranes, and subsequently, aggravate the losses of cell organelle and viability. The results suggest that UV-C photocatalysis by the silver ions doped TiO2 could be a promising method to prevent fast and excessive growth of cyanobacteria in eutrophic water sources.

引用

页码：402 / 408

页数：7

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