期刊论文

Zeng, Q.-R.

中文

中国环境科学

1000-6923

2005

25

1

96-100

10.3321/j.issn:1000-6923.2005.01.022

湖南省教育厅基金资助项目（02C556）；

本校为第一且通讯机构

研究了一种高水溶性的环糊精衍生物羟丙基-β-环糊精(HPCD)溶液对甲基对硫磷的增溶作用、土壤中甲基对硫磷的洗脱去除作用以及对甲基对硫磷的光降解作用.结果表明,HPCD使甲基对硫磷在水中的溶解度显著增加,20g/L的HPCD溶液中,甲基对硫磷的溶解度比在纯水中提高了约13倍;HPCD溶液能有效地对土壤中的甲基对硫磷进行洗脱,10g/L的HPCD溶液洗脱率为90%以上;HPCD能促进甲基对硫磷的光降解,6g/L的HPCD使甲基对硫磷的半衰期(T1/2)由原来的103.90h减少到15.16h,而且表现出很高的光敏效应,光敏效率为90.3%.结合其高增溶能力、高洗脱能力与光催化降解能力,HPCD能有效地降低弱极性有机污染物在环境中的污染....

A highly water-soluble derivate of β-cyclodextrin, hydroxypropyl-β-cyclodextrin (HPCD) solution was studied for its solubilization action of methyl-parathion, elution removal action of methyl-parathion in soil, and photodegradation action of methyl-parathion. The aqueous solubility of methyl-parathion was increased markedly with the existence of HPCD, being about 13 times higher in 20 g/L of HPCD than in pure water. Methyl-parathion in soil could remove effectively by elution with HPCD solution, with the elution rate by 10 g/L of HPCD more th...