以辉钼矿(MoS_(2))、褐铁矿和无烟煤为原料,通过碳热还原法制备了MoS_(x)@ZVI复合材料。研究了MoS_(2)用量、焙烧温度、无烟煤用量和焙烧时间对MoS_(x)@ZVI去除酸性橙G(OG)的影响,并确定了制备MoS_(x)@ZVI的较优制备条件为焙烧温度1000...以辉钼矿(MoS_(2))、褐铁矿和无烟煤为原料,通过碳热还原法制备了MoS_(x)@ZVI复合材料。研究了MoS_(2)用量、焙烧温度、无烟煤用量和焙烧时间对MoS_(x)@ZVI去除酸性橙G(OG)的影响,并确定了制备MoS_(x)@ZVI的较优制备条件为焙烧温度1000℃、MoS_(2)用量6%、焙烧时间60 min和无烟煤用量25%。通过X射线衍射、扫描电子显微镜和能谱仪对较优条件制备的MoS_(x)@ZVI进行表征,结果表明,材料中生成了大量核壳结构的硫化零价铁,内核为Fe-Mo-C合金,外壳可能由硫化钼、FeS、C、钼氧化物和铁氧化物组成。降解实验结果表明,将较优条件制备的MoS_(x)@ZVI碎磨至粒径<0.1 mm,用0.6 g MoS_(x)@ZVI处理400 mL 200 mg/L OG模拟废水,在初始pH=3.0~10.0范围处理150 min,OG的去除率均在90%以上。展开更多
文摘以辉钼矿(MoS_(2))、褐铁矿和无烟煤为原料,通过碳热还原法制备了MoS_(x)@ZVI复合材料。研究了MoS_(2)用量、焙烧温度、无烟煤用量和焙烧时间对MoS_(x)@ZVI去除酸性橙G(OG)的影响,并确定了制备MoS_(x)@ZVI的较优制备条件为焙烧温度1000℃、MoS_(2)用量6%、焙烧时间60 min和无烟煤用量25%。通过X射线衍射、扫描电子显微镜和能谱仪对较优条件制备的MoS_(x)@ZVI进行表征,结果表明,材料中生成了大量核壳结构的硫化零价铁,内核为Fe-Mo-C合金,外壳可能由硫化钼、FeS、C、钼氧化物和铁氧化物组成。降解实验结果表明,将较优条件制备的MoS_(x)@ZVI碎磨至粒径<0.1 mm,用0.6 g MoS_(x)@ZVI处理400 mL 200 mg/L OG模拟废水,在初始pH=3.0~10.0范围处理150 min,OG的去除率均在90%以上。
基金Project(2019YFC1907405)supported by the National Key R&D Program of ChinaProjects(52064021,52074136)supported by the National Natural Science Foundation of China+6 种基金Project(20204BCJL23031)supported by the Jiangxi Provincial Cultivation Program for Academic and Technical Leaders of Major Subjects,ChinaProject(20202ACB213002)supported by the Jiangxi Provincial Science Fund for Distinguished Young Scholars,ChinaProject(2019KY09)supported by the Merit-based Postdoctoral Research in Jiangxi Province,ChinaProject(JXUSTQJBJ2020004)supported by the Program of Qingjiang Excellent Young TalentsJiangxi University of Science and Technology,ChinaProject(2021ACB204015)supported by the Distinguished Professor Program of Jinggang Scholars in Institutions of Higher LearningNatural Science Foundation of Jiangxi Province,China。
