活性炭负载纳米零价铁去除对硝基酚的实验研究  

Study on removal of p-nitrophenol using nanoscale zero-valent iron supported on activated carbon

作　　者：张建昆 冯启言[1] 张林军[2] 刘加强[2] 高明侠[2] 杨利明[3] ZHANG Jian-kun;FENG Qi-yan;ZHANG Lin-jun;LIU Jia-qiang;GAO Ming-xia;YANG Li-ming(School of Environment Science and Spatial Informatics,China University of Mining and Technology,Xuzhou 221116,China;School of Environmental Engineering,Xuzhou University of Technology,Xuzhou 221111,China;Key Laboratory of Jiangxi Province for Persistant Pollutants Control and ResourcesRecycle,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221116 [2]徐州工程学院环境工程学院,江苏徐州221111 [3]南昌航空大学江西省持久性污染物控制与资源循环利用重点实验室,江西南昌330063

出　　处：《应用化工》2020年第1期90-93,共4页Applied Chemical Industry

基　　金：江苏省自然科学基金项目(BK20170249);江苏省高校自然科学基金项目(18KJD610004);江西省持久性污染物控制与资源循环利用重点实验室开放课题(ES201980193);江苏省青蓝工程资助项目

摘　　要：以活性炭(GAC)作为载体,采用液相还原法制备活性炭负载纳米零价铁复合材料(nZVI-GAC),利用X射线衍射(XRD)、扫描电子显微镜(SEM)、比表面积及孔径分析仪(BET)等方法对复合材料进行了表征。研究了不同材料、不同初始浓度、不同初始pH、nZVI-GAC投加量去除对硝基酚(PNP)的影响。结果表明,纳米零价铁成功负载到活性炭上,但负载后的活性炭比表面积和孔径有所降低;在酸性条件下nZVI-GAC对PNP的去除率优于碱性条件下,并且随着nZVI-GAC投加量的增加和PNP初始浓度的降低,nZVI-GAC对PNP的去除率逐渐增加。Using granular activated carbon as the carrier,nanoscale zero valent iron materials loaded on granular activated carbon were prepared by liquid-phase reduction method.The materials were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),specific surface area and aperture analyzer(BET).The removal of p-nitrophenol(PNP)by different materials,initial concentrations,initial pH and dosage of nZVI-GAC was studied.The results show that the surface area and pore diameter of the activated carbon are decreased after the nano-zero valent iron is loaded on the granular activated carbon successfully,and the PNP removal rate of nZVI-GAC is better than that of basic condition under acid condition,and the PNP removal rate of nZVI-GAC increases gradually with the increase of the dosage of nZVI-GAC and the decrease of the initial concentration of PNP.

关 键 词：活性炭 纳米零价铁 对硝基酚 

分 类 号：TQ03[化学工程] X703[环境科学与工程—环境工程]