摘要
以钨酸钠(Na_(2)WO_(4)·2H_(2)O)为钨源,将GO复合到WO_(3)表面,研究GO/WO_(3)复合材料光催化活性。以四环素(TC)为模型污染物,评估了样品的光催化性能。结果表明:GO掺杂量为10%(质量分数)的复合光催化剂活性最高,120 min内对TC的降解率达90.21%。自由基捕获实验表明,超氧自由基(·O_(2)-)和空穴(h+)是GO/WO_(3)复合材料降解TC的主要活性物质。
Sodium tungstate(Na_(2)WO_(4)·2H_(2)O)was used as the tungsten source,GO was compounded on the surface of WO_(3),and the photocatalytic activity of WO_(3) doped GO with different mass ratios was studied.And the photocatalytic performance of the sample was evaluated using tetracycline(TC)as a model pollutant.The results showed that the composite photocatalyst with 10%GO doping had the highest activity,and the degradation rate of TC reached 90.21%within 120 min.The free radical capture experiment showed that superoxide radicals(·O_(2)-)and holes(h+)were the main active substances for GO/WO_(3) to degrade TC.
作者
李晓蔚
刘斌
杨改霞
LI Xiao-wei;LIU Bin;YANG Gai-xia(Laboratory Management Office,Xi'an Polytechnic University,Xi’an Shaanxi 710048,China;School of Environment and Chemical engineering,Xi'an Polytechnic University,Xi’an Shaanxi 710048,China)
出处
《当代化工》
CAS
2023年第12期2853-2857,共5页
Contemporary Chemical Industry
基金
西安市科技计划项目(项目编号:20SFSF0012)。
关键词
三氧化钨
氧化石墨烯
光催化
Tungsten trioxide
Graphene oxide
Photocatalysis
