再生方式对活性炭表面特性的影响  

The effect of regeneration method on surface characteristics of activated carbon

作　　者：陈红英[1] 骆建军 罗鹏辉 熊梦瑶 王学洲 袁炜龙 CHEN Hongying;LUO Jianjun;LUO Penghui;XIONG Mengyao;WANG Xuezhou;YUAN Weilong(College of Civil Engineering,Zhejiang University of Technology,Hangzhou 310023,China)

机构地区：[1]浙江工业大学土木工程学院,浙江杭州310023

出　　处：《浙江工业大学学报》2021年第4期459-465,共7页Journal of Zhejiang University of Technology

基　　金：浙江省自然科学基金资助项目(Y506032)。

摘　　要：为探究不同再生方式对活性炭表面特性的影响,采用Boehm滴定、傅里叶红外光谱、扫描电子显微镜和比表面积分析等技术对原炭、微波法再生活性炭、Fenton法再生活性炭以及微波-Fenton联合再生活性炭进行表征,并进一步阐述其再生机理。结果表明:微波-Fenton联合再生后的活性炭比表面积能恢复至与原炭相当;电镜扫描结果显示,微波-Fenton法联合再生效果良好,再生活性炭表面的孔容积仅次于原炭;相比于原炭,联合再生活性炭表面的酸碱官能团用量无明显变化,吸附性能最接近原炭;活性炭表面的═C═O结构在Fenton和微波再生后转化为―C═O,而―C═O正是活性炭的活性中心,能提高活性炭的活性。Such methods as functional group titration,Fourier infrared scanning,scanning electron microscope and specific surface area analysis were taken to analyze virgin treated activated carbon,microwave regeneration,Fenton regeneration and Fenton-microwave regeneration.Effect of regeneration on the physical and chemical characteristics of activated carbon and regeneration mechanism has been explored.The results were as follows:the specific surface area of activated carbon after microwave-Fenton regeneration can be restored to that of fresh activated carbon;the results of scanning electron microscope intuitively showed that microwave-Fenton regeneration was effective;compared to fresh activated carbon,the number of combined regeneration activated carbon functional groups had no significant change,so the adsorption properties of combined regeneration activated carbon functional groups was closest to that of fresh activated carbon;the═C═O structure on activated carbon surface can be transformed to―C═O after Fenton and microwave regeneration,which is the active center of activated carbon,so the activity of activated carbon can be increased.

关 键 词：活性炭 再生 扫描电镜 比表面积分析 傅里叶红外光谱扫描 

分 类 号：X703.1[环境科学与工程—环境工程]