H2O2 Generated by Natural Biofilms Under Light Irradiation and Its Effects on Degradation of Sodium Dodecyl Benzene Sulfonate

被引：3

作者：

Dong Deming ^{[1
]}

Li Ming ^{[1
]}

Sun Jiaqian ^{[1
]}

Zhao Tianyu ^{[1
]}

Hua Xiuyi ^{[1
]}

Guo Aitong ^{[1
]}

Liang Dapeng ^{[1
]}

机构：

[1] Jilin Univ, Key Lab Groundwater Resources & Environm, Key Lab Water Resources & Aquat Environm Jilin Pr, Minist Educ,Coll Environm & Resources, Changchun 130012, Peoples R China

来源：

CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE | 2014年 / 35卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Light; Natural biofilm; Hydrogen peroxide; Sodium dodecyl benzene sulfonate (SDBS); Degradation; HYDROGEN-PEROXIDE; ORGANIC-MATTER; SURFACE-COATINGS; PHOTOPRODUCTION; PHOTODEGRADATION; PHOTOSYNTHESIS; SUPEROXIDE; ADSORPTION; KINETICS; IMPACT;

D O I：

10.7503/cjcu20140194

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study, generation of H2O2(hydrogen peroxide) by natural biofilms of different bioactivities under light irradiation was investigated, and effect of light on sodium dodecyl benzene sulfonate (SDBS) degradation in such natural biofilm-water systems was evaluated. The role of H2O2 in the degradation of SDBS was also verified by SDBS degradation experiments in H2O2 solution without biofilms. The results indicated that: (1) biofilms with full bio-activity can generate H2O2 while biofilms without any bio-activity or bio-activity of photosynthesis can not generate H2O2; (2) much more SDBS can be degraded under visible light than in darkness; (3) light and Fe2+ can promote the degradation of SDBS in the presence of H2O2. H2O2 produced by natural biofilms should be one of the most important causes of the degradation of SDBS, and the roles of H2O2 in the degradation should include both direct oxidation of SDBS by H2O2 and the indirect role in generating active oxygen species.

引用

页码：1247 / 1251

页数：5

共 20 条

[1] Visible-light-assisted degradation of dye pollutants over Fe(III)-loaded resin in the presence of H2O2 at neutral pH values [J].