Photochemical Synthesis of ZnS Nanosheet and Its Use in Photodegradation of Organic pollutants
ZnS is an important photocatalyst and its use in photodegradation of organic pollutants may be effectively facilitated by developing new fabrication methods at room temperature and exploring novel new morphologies. In this paper, taking Na2S2O3 and ZnSO4 as the precursors, an 8 W 254nm UV lamp as the light source, ZnS nanosheet at the air-water interface was obtained by a photochemical route. X-ray diffraction, scanning electron microscopy were used to characterize the products. In addition, this material possessed excellent photocatalytic activities in photodegradation of some organic pollutants, for example methyl orange. Under the irradiation of a 300 W high-pressure mercury lamp, 0.02 g sample exhibits degradation efficiency 70% of 200ml 5×10-5M methyl orange in 60 min. This route is convenient, low-cost, green and can be extended to prepare other oxide or sulfide semiconductor nanostructures with photocatalytic activities.
Qingsong Wu Fengqiang Sun
School of Chemistry and Environment, South China Normal University Key Lab of Electrochemical Techno School of Chemistry and Environment, South China Normal University Key Lab of Electrochemical Techno
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）