Surfactant changes lead adsorption behaviors and mechanisms on microplastics

微塑料 吸附 肺表面活性物质 化学 溴化物 聚乙烯 水溶液中的金属离子 离子 化学工程 环境化学 无机化学 有机化学 生物化学 工程类
作者
Maocai Shen,Biao Song,Guangming Zeng,Yaxin Zhang,Fengyun Teng,Chengyun Zhou
出处
期刊:Chemical Engineering Journal [Elsevier BV]
卷期号:405: 126989-126989 被引量:186
标识
DOI:10.1016/j.cej.2020.126989
摘要

The impact of surfactant addition on the adsorption performance of lead ion (Pb2+) as a typical heavy metal ion on three microplastics was investigated. The types of microplastics (polyethylene (PE), polypropylene (PP) and polymethylmethacrylate (PMMA)) and surfactants (triton X-100 (TX-100), 1-hexadecylpyridinium bromide (HDPB), and sodium dodecyl benzenesulfonate (SDBS)), adsorption time, concentration of Pb2+, and coexisting ions was systematically investigated, and the characteristics of adsorption of Pb2+ by microplastics were analyzed. The experimental results showed that the adsorption capacity of Pb2+ on three micropalstics was different. The adsorption capacity of Pb2+ on the three microplastics without surfactants was: 4.21 (PMMA) > 2.01 (PE) > 1.57 mg g−1 (PP). The addition of surfactants resulted in a higher hydrophilicity of microplastics, and obviously improved the adsorption ability of microplastics for lead ions. SDBS can significantly enhance the adsorption of Pb2+ on three microplastics compared with other two surfactants (TX100 and HDPB). The highest adsorption capacity of Pb2+ on the three microplastics with addition of SDBS solution was: 7.87 (PMMA) > 7.20 (PE) > 7.02 mg g−1 (PP). With the increase of adsorption time and Pb2+ concentration, the adsorption efficiency of microplastics for Pb2+ first increased and then decreased. The pH of solution had a great influence on the adsorption of Pb2+ by microplastics. The results of coexisting ion experiments demonstrated that when lead ion and copper ion coexist, the two ions have competitive adsorption phenomenon on PP. This research explored the adsorption characteristics of lead ions by microplastics with addition of surfactants, which can provide theoretical basis for further study of heavy metal enrichment and environmental behavior of microplastics in the environment.
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
wangnn发布了新的文献求助10
1秒前
量子星尘发布了新的文献求助10
1秒前
体贴的叛逆者完成签到,获得积分10
2秒前
幸福的鑫鹏完成签到,获得积分10
2秒前
孤海未蓝完成签到,获得积分10
3秒前
彭于晏应助飒飒采纳,获得10
4秒前
狠毒的小龙虾完成签到,获得积分10
5秒前
小趴菜完成签到,获得积分10
9秒前
lcls完成签到,获得积分10
10秒前
10秒前
11秒前
尊敬太阳发布了新的文献求助10
13秒前
风中夜天完成签到 ,获得积分10
13秒前
优雅友蕊完成签到,获得积分10
14秒前
gaga完成签到,获得积分10
15秒前
西北孤傲的狼完成签到,获得积分10
16秒前
多边形完成签到 ,获得积分10
18秒前
李cc完成签到,获得积分10
20秒前
20秒前
快帮我找找完成签到,获得积分10
20秒前
xiezhuochun完成签到 ,获得积分10
21秒前
24秒前
aixiaoming0503完成签到,获得积分10
25秒前
forge完成签到,获得积分10
25秒前
26秒前
Distance完成签到,获得积分10
29秒前
蒋念寒发布了新的文献求助10
30秒前
雪雨夜心完成签到,获得积分10
34秒前
又是一年完成签到,获得积分10
35秒前
Distance发布了新的文献求助10
36秒前
李子完成签到 ,获得积分10
37秒前
37秒前
耍酷的指甲油完成签到,获得积分20
38秒前
安小磊完成签到 ,获得积分10
39秒前
雄i完成签到,获得积分10
42秒前
明亮的遥完成签到 ,获得积分0
44秒前
安澜完成签到,获得积分10
44秒前
MG_XSJ应助1111采纳,获得10
47秒前
尊敬太阳完成签到,获得积分20
48秒前
49秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
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 4038184
求助须知:如何正确求助?哪些是违规求助? 3575908
关于积分的说明 11373872
捐赠科研通 3305715
什么是DOI,文献DOI怎么找? 1819255
邀请新用户注册赠送积分活动 892662
科研通“疑难数据库(出版商)”最低求助积分说明 815022