Effects of Humic Acids and β-cyclodextrins on Photodegradation of Atrazine
LIU Shiyu
XIANG Wu
HUANG Bijie
LIU Yanxiang
Abstract：The herbicide of atrazine (AT) is characterized by being highly persistent in the environment,which is one of the most widely used herbicide in the word,can make carcinogenic and endocrine-disrupting effects on the human body.Study on its mobility and transformation in the environment is of great significance.To understand the effects of dissolved humic acids (HA) on photodegradation of the β-cyclodextrins/atrazine,the mutual effect between β-cyclodextrins and atrazine,humic acid and atrazine were studied.And the effects of humic acids on photodegradation of the β-cyclodextrins/atrazine were also studied.The results show that atrazine photodegradation followed the first-order reaction kinetics.β-cyclodextrins can promote atrazine's degradation when atrazine was mixed with β-cyclodextrins at mole ratio 2∶1 and 1∶2.Those different concentrations of humic acids were added into atrazine solution inhibited atrazine's photodegradation,and the rate decreased with increasing HA concentration.When atrazine was mixed with β-cyclodextrins at mole ratio 2∶1,humic acids can promote atrazine's photodegradation,and the rate increased with increasing HA concentration.
Keywords：humic acids(HA)β-cyclodextrinsatrazine(AT)photodegradation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 93-96 )