硝酸镍催化活化法制备竹活性炭  

Preparation of Bamboo Activated Carbon Through Reactivation by Impregnated Nickel Nitrate

作　　者：常颖萃[1] CHANG Yingcui(Fujian Academy of Forestry Sciences,Fujian Provincial Key Laboratory of Forest Silviculture and Forest Product Processing Utilization,Fuzhou 350012,Fujian,China)

机构地区：[1]福建省林业科学研究院、福建省森林培育和林产品加工利用重点实验室,福建福州350012

出　　处：《福建林业科技》2020年第4期26-30,共5页Journal of Fujian Forestry Science and Technology

基　　金：福建省省属公益科研项目(闽科计[2015]64号)。

摘　　要：以经低温炭化的竹屑炭化料为原料,浸渍于Ni(NO 3)2溶液中,在高温下进行催化活化制备竹活性炭;研究炭化工艺、浸渍时间、活化温度、Ni(NO 3)2浓度对竹活性炭吸附性能和孔结构的影响。结果表明,硝酸镍催化活化法制备竹活性炭较佳的工艺为:炭化温度350℃、浸渍比1∶10、活化温度950℃、Ni(NO 3)20.1%,制得的竹活性炭的碘吸附值、亚甲基蓝吸附值、比表面积、总孔容积、微孔容积、中孔容积和孔径分别为864.9 mg·g^-1、157.5 mg·g^-1、835.22 m 2·g^-1、0.462cm^3·g^-1、0.198cm^3·g^-1、0.264cm^3·g^-1和2.214 nm。Bamboo activated carbon was prepared through reactivation by impregnating the carbonization samples with Ni(NO 3)2,while the carbonization samples was prepared by low-temperature carbonization method using Bamboo chips as raw materials.The effects of carbonization process,impregnation time,activation temperature and activator concentration on the adsorption properties and pore structure of bamboo activated carbon were studied.The results showed that the optimum conditions of preparing bamboo activated carbon were carbonization temperature 350℃,impregnation ratio 1∶10,activation temperature 950℃,concentration of Ni(NO 3)20.1%.Under the optimum conditions,the iodine adsorption value,methylene blue adsorption value,specific surface area,total pore volume,micropore volume,mesopore volume,pore size of the bamboo activated carbon were 864.9 mg·g^-1,157.5 mg·g^-1,835.22 m 2·g^-1,0.462cm^3·g^-1,0.198cm^3·g^-1,0.264cm^3·g^-1,2.214 nm,respectively。

关 键 词：竹活性炭 催化活化 吸附性能 孔隙结构 

分 类 号：TQ424.1[化学工程]