Effect of dissolved organic matter on sulfachloropyridazine photolysis in liquid water and ice

溶解有机碳 化学 光降解 超纯水 环境化学 光化学 羟基自由基 环境科学 激进的 环境工程 有机化学 催化作用 光催化
作者
Jiyang Liu,Shuang Xue,Caihong Jiang,Zhaohong Zhang,Yingzi Lin
出处
期刊:Water Research [Elsevier BV]
卷期号:246: 120714-120714 被引量:12
标识
DOI:10.1016/j.watres.2023.120714
摘要

Dissolved organic matter (DOM) is an ubiquitous component of environmental snow and ice, which can absorb light and produce reactive species (RS) and thus is of importance in ice photochemistry. The photodegradation of sulfachloropyridazine (SCP) without and with DOM present in liquid water and ice were investigated in this study. The photodegradation rate constants for SCP without DOM present was enhanced by 52.5 % in ice relative to liquid water, likely due to the enhanced role of SCP self-sensitized RS in ice. DOM significantly promoted SCP photolysis in both liquid water and ice, which was mainly attributed to roles of singlet oxygen (1O2) and triplet excited-state DOM (3DOM*) generated from DOM. 1O2 production from DOM was significantly enhanced in ice relative to liquid water. Hydroxyl radical (•OH) production from DOM in ice was similar to those in liquid water. Enhancement in 3DOM* production in ice was observed at low DOM concentrations. Suwannee River Fulvic Acid (SRFA) and Elliott Soil Humic Acid (ESHA) exhibited differences in RS production in liquid water and ice, as well as in enhancement of 1O2 and 3DOM* produced in ice relative to liquid water. DOM induced reaction pathways of SCP different from those without DOM present, and therefore affected toxicity of SCP photoproducts. There were differences in photodegradation pathways of SCP as well as in toxicity of SCP photoproducts between liquid water and ice.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
传奇3应助Cml采纳,获得10
刚刚
jiang完成签到,获得积分10
1秒前
2秒前
牛文文发布了新的文献求助10
2秒前
可爱的函函应助lcr采纳,获得10
3秒前
科研达人发布了新的文献求助30
5秒前
RogerCqz完成签到 ,获得积分10
6秒前
7秒前
jiang发布了新的文献求助10
7秒前
圆锥香蕉应助科研通管家采纳,获得20
8秒前
怕黑半仙应助科研通管家采纳,获得10
8秒前
8秒前
圆锥香蕉应助科研通管家采纳,获得20
8秒前
科研通AI5应助科研通管家采纳,获得10
8秒前
8秒前
领导范儿应助科研通管家采纳,获得10
8秒前
9秒前
9秒前
Cml完成签到,获得积分10
10秒前
Liufgui应助牛文文采纳,获得10
11秒前
chun发布了新的文献求助10
12秒前
YI应助南兮采纳,获得10
12秒前
orixero应助颜云尔采纳,获得10
13秒前
anna发布了新的文献求助10
13秒前
YWang发布了新的文献求助10
16秒前
16秒前
NiNi完成签到,获得积分10
18秒前
悦耳寒松发布了新的文献求助10
18秒前
sijing发布了新的文献求助10
19秒前
7777完成签到,获得积分10
19秒前
求求了,让孩子毕业吧完成签到,获得积分10
20秒前
20秒前
23秒前
我是老大应助LiuJinhui采纳,获得10
24秒前
27秒前
量子星尘发布了新的文献求助10
27秒前
清久完成签到,获得积分10
28秒前
牛马码字员完成签到,获得积分10
28秒前
橙果果发布了新的文献求助20
29秒前
所所应助11采纳,获得10
29秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989069
求助须知:如何正确求助?哪些是违规求助? 3531351
关于积分的说明 11253589
捐赠科研通 3269939
什么是DOI,文献DOI怎么找? 1804851
邀请新用户注册赠送积分活动 882074
科研通“疑难数据库(出版商)”最低求助积分说明 809073