化学改性后的谷壳对金属镉离子的吸附研究  

Study on Absorbability of Cadmium Ions on the Cereal Chaff after Chemical Modified

作　　者：余丽萍[1,2] 何宗健[1] 熊友发[2] 肖伟[2] 

机构地区：[1]南昌大学环境科学与工程学院,江西南昌330046 [2]江西农业大学理学院,江西南昌330045

出　　处：《江西科学》2010年第6期755-758,共4页Jiangxi Science

摘　　要：以原子吸收光谱仪,红外光谱仪为检测手段,考察了天然谷壳分别在经过NaOH溶液;盐酸＋甲醇混合溶液;高纯水处理后的化学吸附性能,结果表明经过NaOH溶液处理后的的谷壳,当溶液的pH在8~10范围内时,对Cd2＋吸附率可达90%以上,红外光谱图分析结果表明,化学改性后的谷壳其官能团有蛋白质、肽、羧基等,可以与金属离子相结合。Investigate for the absorption performance of the Cereal Chaff by AAS and FTR,after the treatment of NaOH solution,hydrochloric methyl alcohol mixed solution and high pure water.The results show that chaff after the treatment of NaOH solution,while the pH of the solution Cd2＋ is in 8~10,the adsorption rate of the chaff will be more than 90%,infrared spectra analysis shows that the functional group of the chaff after chemical modified has the protein,the peptide,the carboxyl group and so on,which can be combined with metal ion.

关 键 词：化学改性 谷壳 镉离子 吸附 

分 类 号：O657.33[理学—分析化学]