清晨好,您是今天最早来到科研通的研友!由于当前在线用户较少,发布求助请尽量完整的填写文献信息,科研通机器人24小时在线,伴您科研之路漫漫前行!

Heterogeneous and Photosensitized Oxidative Degradation Kinetics of the Plastic Additive Bisphenol-A in Sea Spray Aerosol Mimics

化学 气溶胶 双酚A 动力学 光化学 降级(电信) 环境化学 氧化磷酸化 有机化学 生物化学 计算机科学 量子力学 电信 物理 环氧树脂
作者
Samantha M. Kruse,John Slade
出处
期刊:Journal of Physical Chemistry A [American Chemical Society]
卷期号:127 (21): 4724-4733
标识
DOI:10.1021/acs.jpca.3c00127
摘要

Plastics have become ubiquitous in the world’s oceans, and recent work indicates that they can transfer from the ocean to the atmosphere in sea spray aerosol (SSA). Hazardous chemical residues in plastics, including bisphenol-A (BPA), represent a sizable fraction of consumer plastics and have been measured consistently in air over both terrestrial and marine environments. However, the chemical lifetimes of BPA and mechanisms by which plastic residues degrade with respect to photochemical and heterogeneous oxidation processes in aerosols are unknown. Here, we present the photosensitized and OH-initiated heterogeneous oxidation kinetics of BPA in the aerosol phase consisting of pure-component BPA and internal mixtures of BPA, NaCl, and dissolved photosensitizing organic matter. We found that photosensitizers enhanced BPA degradation in binary-component BPA + photosensitizer aerosol mixtures when irradiated in the absence of OH. OH-initiated degradation of BPA was enhanced in the presence of NaCl with and without photosensitizing species. We attribute this enhanced degradation to greater mobility and thus reaction probability between BPA, OH, and reactive chlorine species (RCS) formed through reaction between OH and dissolved Cl– in the more liquid-like aerosol matrix in the presence of NaCl. Addition of the photosensitizers in the ternary-component BPA + NaCl + photosensitizer aerosol led to no enhancement in the degradation of BPA following light exposure compared to the binary-component BPA + NaCl aerosol. This was attributed to quenching of triplet state formation by dissolved Cl– in the less viscous aqueous aerosol mixtures containing NaCl. Based upon measured second-order heterogeneous reaction rates, the estimated lifetime of BPA with respect to heterogeneous oxidation by OH is one week in the presence of NaCl compared to 20 days in the absence of NaCl. This work highlights the important heterogeneous and photosensitized reactions and the role of phase state, which affect the lifetimes of hazardous plastic pollutants in SSA with implications for understanding pollutant transport and exposure risks in coastal marine environments.
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
大幅提高文件上传限制,最高150M (2024-4-1)

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应助小鱼小鱼爱学习采纳,获得10
6秒前
不要晚安的寒流完成签到,获得积分10
31秒前
xiao完成签到 ,获得积分10
47秒前
长卿123完成签到,获得积分10
47秒前
进击的咩咩完成签到 ,获得积分10
52秒前
SCH_zhu完成签到,获得积分10
56秒前
xyl_507完成签到 ,获得积分10
1分钟前
Hairmon完成签到,获得积分10
1分钟前
淡淡醉波wuliao完成签到 ,获得积分10
2分钟前
Fiona完成签到 ,获得积分10
2分钟前
莫冰雪完成签到 ,获得积分10
2分钟前
3分钟前
3分钟前
陈秋完成签到,获得积分10
3分钟前
小王完成签到 ,获得积分10
3分钟前
rocky15应助jlwang采纳,获得10
3分钟前
LL完成签到 ,获得积分10
3分钟前
大荷子她爸完成签到 ,获得积分10
4分钟前
jjj完成签到 ,获得积分10
4分钟前
jiayoujijin完成签到 ,获得积分10
4分钟前
4分钟前
ybheart完成签到,获得积分10
4分钟前
天天快乐应助科研通管家采纳,获得10
4分钟前
青提芝士挞完成签到 ,获得积分10
4分钟前
Lucas应助btbu2015采纳,获得30
4分钟前
小鱼小鱼爱学习完成签到,获得积分10
5分钟前
197819782009完成签到 ,获得积分10
5分钟前
btbu2015发布了新的文献求助30
6分钟前
野性的柠檬完成签到,获得积分10
6分钟前
甜甜圈完成签到 ,获得积分10
6分钟前
6分钟前
白嫖论文完成签到 ,获得积分10
6分钟前
lovexa完成签到,获得积分10
6分钟前
Lenard Guma完成签到 ,获得积分10
6分钟前
风信子完成签到 ,获得积分10
7分钟前
呐殇完成签到,获得积分10
7分钟前
踏实的丹秋完成签到 ,获得积分10
7分钟前
酸奶球完成签到 ,获得积分10
7分钟前
明天就交稿完成签到 ,获得积分10
8分钟前
btbu2015发布了新的文献求助30
8分钟前
高分求助中
Un calendrier babylonien des travaux, des signes et des mois: Séries iqqur îpuš 1036
Sustainable Land Management: Strategies to Cope with the Marginalisation of Agriculture 1000
Corrosion and Oxygen Control 600
Python Programming for Linguistics and Digital Humanities: Applications for Text-Focused Fields 500
Heterocyclic Stilbene and Bibenzyl Derivatives in Liverworts: Distribution, Structures, Total Synthesis and Biological Activity 500
重庆市新能源汽车产业大数据招商指南(两链两图两池两库两平台两清单两报告) 400
Division and square root. Digit-recurrence algorithms and implementations 400
热门求助领域 (近24小时)
化学 材料科学 医学 生物 有机化学 工程类 生物化学 纳米技术 物理 内科学 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 电极 光电子学 量子力学
热门帖子
关注 科研通微信公众号,转发送积分 2545899
求助须知:如何正确求助?哪些是违规求助? 2175672
关于积分的说明 5600226
捐赠科研通 1896383
什么是DOI,文献DOI怎么找? 946268
版权声明 565379
科研通“疑难数据库(出版商)”最低求助积分说明 503557