pH对活性炭吸附染料能力的影响  

Influence of pH on the Adsorb Ability of Active Carbon for Dyestuffs

作　　者：汤克勇[1] 张见立[1] 王全杰[1] 

机构地区：[1]郑州大学材料科学与工程学院,河南郑州450052

出　　处：《中国皮革》2007年第1期7-10,共4页China Leather

基　　金：国家高技术研究发展计划(863计划)资助项目(编号:2003AA327100)

摘　　要：研究了不同pH条件下,活性炭对几种皮革染料的吸附能力。结果表明:在碱性条件下,对于所研究的大多数染料而言,随着pH的升高,活性炭对染料的吸附能力变化不大。说明在碱性条件下,应用活性炭对皮革染料吸附脱色时,溶液中OH-浓度的变化对吸附效果的影响不大。因此,在对皮革废水进行脱色,利用分光光度法检测深色革样中的有害物时,可以根据操作的需要选择合适的pH(碱性条件),而不会影响活性炭对染料的吸附效果。The adsorb abilities of active carbon for dyestuffs under different pH values were studied, h shows that in alkaline condition the adsorb ability of active carbon for most dyestuffs used in the experiment is almost the sameo So in alkaline condition the concentration of OH - has little influence on the adsorb ability of active carbon. Therefore when decolor the tannery wastewater and determine the content of certain material by spectrophotometer, the appropriate pH value that is in alkaline condition does not influence the adsorb ability of active carbon for dyestuff.

关 键 词：活性炭 吸附脱色 染料 OH^-浓度 

分 类 号：X791[环境科学与工程—环境工程]