Adsorption behavior of triclosan on polystyrene nanoplastics: The roles of particle size, surface functionalization, and environmental factors

化学 吸附 聚苯乙烯 化学工程 纳米技术 有机化学 工程类 聚合物 材料科学
作者
Chunzhao Chen,Chenxi Sun,Bin Wang,Zhiguo Zhang,Gang Yu
出处
期刊:Science of The Total Environment [Elsevier BV]
卷期号:906: 167430-167430 被引量:12
标识
DOI:10.1016/j.scitotenv.2023.167430
摘要

Nanoplastics (NPs) contribute substantially to the transport of waterborne pollutants. Triclosan (TCS) has a high potential to contact with NPs because of their prevalence in natural waters. Herein, this study investigated the adsorption behavior of TCS on differently sized and functionalized polystyrene (PS) NPs. The effects of environmental factors such as pH, salinity, and dissolved organic matter (DOM) were also evaluated. Results suggest that the adsorption equilibrium constant (kd) of TCS in pristine PSNP suspensions followed the order as: PSNPs-50 nm (4.39 L·g−1) > PSNPs-100 nm (2.78 L·g−1) > PSNPs-200 nm (2.59 L·g−1) > PSNPs-500 nm (1.36 L·g−1) ≈ PSNPs-900 nm (1.36 L·g−1). For the functionalized PSNPs (i.e., PSNPs-COOH, PSNPs-NH2), the values of specific surface area normalized kd called kd, SSA were higher than those of pristine PSNPs. Meanwhile, TCS adsorption on two functionalized PSNPs remained stable and then decreased as salinity increased, while an opposite trend was observed toward pristine PSNPs. All these suggested that physicochemical properties of PSNPs (e.g., particle size and surface functional groups) are important factors influencing their adsorption capacity. When the solution pH raised, the adsorbed amounts of TCS on all tested PSNPs prone to decline. However, DOM only affected the adsorption behavior of PSNPs-50 nm, probably owing to its aggregation with tiny PSNPs and the induced secondary adsorption.
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
1秒前
2秒前
晗月完成签到,获得积分10
2秒前
情怀应助如意枫叶采纳,获得10
3秒前
量子星尘发布了新的文献求助10
5秒前
Akim应助SS采纳,获得10
6秒前
张雷应助清新的夜蕾采纳,获得20
6秒前
chennn发布了新的文献求助10
6秒前
罗一完成签到,获得积分10
8秒前
10秒前
丘比特应助wu采纳,获得10
13秒前
俏皮芷蕊发布了新的文献求助30
13秒前
称心的菲鹰完成签到,获得积分10
14秒前
碧蓝问安发布了新的文献求助10
15秒前
15秒前
打打应助ZZZ采纳,获得10
17秒前
21秒前
呆萌板凳发布了新的文献求助10
21秒前
hp关闭了hp文献求助
22秒前
23秒前
都选C完成签到,获得积分10
24秒前
壮观以松完成签到,获得积分10
24秒前
Liufgui应助郭小宝采纳,获得20
24秒前
heli完成签到,获得积分10
26秒前
如意枫叶发布了新的文献求助10
27秒前
都选C发布了新的文献求助10
28秒前
英俊的铭应助淡烟流水采纳,获得10
29秒前
29秒前
Miracle完成签到,获得积分10
31秒前
35秒前
wu发布了新的文献求助10
35秒前
忧心的听双完成签到,获得积分10
35秒前
Timon完成签到,获得积分10
36秒前
深情安青应助Miracle采纳,获得10
37秒前
李健应助猪猪hero采纳,获得10
37秒前
kingwill应助Harlotte采纳,获得60
37秒前
张雯思发布了新的文献求助10
38秒前
西瓜刀发布了新的文献求助10
38秒前
寒冷的发箍完成签到,获得积分10
40秒前
40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 3989242
求助须知:如何正确求助?哪些是违规求助? 3531393
关于积分的说明 11253753
捐赠科研通 3270010
什么是DOI,文献DOI怎么找? 1804868
邀请新用户注册赠送积分活动 882084
科研通“疑难数据库(出版商)”最低求助积分说明 809136