E-beam degradation of dibutyl phthalate

LIU Ning XU Gang WU Minghong JIAO Zheng SHI Wenyan OUYANG Shuai TIAN Ling

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E-beam degradation of dibutyl phthalate

更新时间：2021-03-12

- E-beam degradation of dibutyl phthalate
- NUCLEAR TECHNIQUES Issue 3, (2008)
- 作者机构：
  
  1. 上海大学环境与化学工程学院
  2. 上海大学环境与化学工程学院,上海,201800
- 作者简介：
- 基金信息：
  
  国家自然科学基金(50578090);上海市教委重点项目(052201);上海市优青基金(B.99-0303-06-017);上海市曙光跟踪和上海大学创新基金(A10-0111-07-003)的资助
- DOI：
  CLC： X703.1
- Published：01 March 2008
- 稿件说明：
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[1]刘宁,徐刚,吴明红,焦正,施文彦,欧阳帅,田玲.邻苯二甲酸二丁酯的电子束辐射降解[J].核技术,2008(03):209-213.

LIU Ning XU Gang WU Minghong JIAO Zheng SHI Wenyan OUYANG Shuai TIAN Ling. E-beam degradation of dibutyl phthalate[J]. Nuclear techniques, 2008, (3): 209-213.
[1]刘宁,徐刚,吴明红,焦正,施文彦,欧阳帅,田玲.邻苯二甲酸二丁酯的电子束辐射降解[J].核技术,2008(03):209-213. DOI：

LIU Ning XU Gang WU Minghong JIAO Zheng SHI Wenyan OUYANG Shuai TIAN Ling. E-beam degradation of dibutyl phthalate[J]. Nuclear techniques, 2008, (3): 209-213. DOI：

摘要

本文主要研究了邻苯二甲酸二丁酯（DBP）在氧化体系（乙腈/水）、还原体系（甲醇/水、特丁醇/水）、纯水三种体系下的电子束辐射降解效应。用HPLC测定了四种溶液下DBP在电子束辐射前后的浓度

GC/MS对乙腈/水、甲醇/水、和纯水溶液的辐射降解产物进行了分析。结果表明:DBP辐射降解遵循一级动力学方程。在辐照剂量仅仅为0.5kGy时

DBP浓度为7.8mg/L时

除特丁醇/水溶液外

DBP降解率已经达到85%以上。三种溶液下的降解产物都有邻苯二甲酸二乙酯、邻苯二甲酸单丁酯、邻苯二甲酸二异丁酯。最后对DBP的电子束辐射降解机理作了初步探讨。

Abstract

E-beam degradation of dibutyl phthalate (DBP) in oxidation system (acetonitrile/water)

reduction system (methanol/water

t-BuOH/water)

and pure water systems was investigated. DBP concentration in the four solutions was determined by HPLC

and the degradation products were analyzed by GC/MS. The results showed that the DBP degradation followed pseudo-first-order kinetics. DBP in a concentration of 7.8mg/L

in all solutions but the t-BuOH/water

could be degraded in a rate of over 85% by 0.5 kGy E-beam irradiation The degradation products included diethyl phthalate

bis(2-methylpropyl)ester

and 1

2-Benzenedicarboxylc acid in the three solutions. Finally

mechanism of the DBP degradation was discussed.

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