Fe/C纳米复合材料制备及其处理含酚废水应用  

Preparation of Fe/C Nanocomposite and Its Application in Phenols Wastewater Treatment

作　　者：贾志奇[1] 谢佳兵 赵永祥[1,2] JIA Zhiqi;XIE Jiabing;ZHAO Yongxiang(College of Chemistry and Chemical Engineering,Shanxi University,Shanxi University Solid Waste Utilization R&D Base;Research Center for Fine Chemicals Engineering: Taiyuan 030006,China)

机构地区：[1]山西大学化学化工学院 [2]精细化学品教育部工程研究中心,山西太原030006

出　　处：《水处理技术》2019年第5期58-62,共5页Technology of Water Treatment

基　　金：山西省重点研发计划(201703D121022-2)

摘　　要：以淀粉为碳源,九水硝酸铁为铁源,经发酵、浸渍、碳热还原制备了系列铁/碳(Fe/C)纳米复合材料。通过X射线衍射、红外光谱、拉曼光谱、电感耦合等离子体发射光谱仪、循环伏安法等对制备的材料进行表征和测试,并考察了Fe/C复合材料对苯酚生产废水的处理性能。结果表明,Fe/C复合材料由非晶碳、铁纳米粒子构成,纳米铁颗粒晶粒尺寸在30～50 nm内。在反应温度30℃、时间为1 h,Fe/C复合材料投加量为1 g,Fe的质量分数20%的Fe/C复合材料对20 m L苯酚溶液(COD为500 mg/L)的去除率达95%;苯酚降解反应遵循准2级动力学模型。Using starch as carbon source and with ferric nitrate nine hydrate as iron source, Fe/C nanocomposites were prepared by fermentation, impregnation and carbothermic reduction. The prepared materials were characterized and tested by XRD, IR, Raman, ICP-OES and cyclic voltammetry. The treatment performance of Fe/C composites for phenol production wastewater was also investigated. The results showed that the Fe/C material was composed of amorphous carbon and iron nanoparticles, and the nano-iron particles had a grain size in the range of 30~50 nm. When the reaction temperature was 30 ℃,the reaction time was 1 h and the amount of filler was 1 g, Fe mass concentration was 20% and phenol solution was 20 m L(COD was 500 mg/L), the removal rate of phenol in waste water reached 95%. The phenol degradation reaction followed a pseudo-second-order kinetics model.

关 键 词：铁/泡沫炭 微电解 循环伏安 苯酚废水 

分 类 号：X703.1[环境科学与工程—环境工程]