The mechanism for adsorption of Cr(VI) ions by PE microplastics in ternary system of natural water environment

微塑料 吸附 化学 水溶液中的金属离子 污染物 金属 环境化学 三元运算 离子 吸附 化学工程 弗伦德利希方程 水溶液 朗缪尔 无机化学 离子强度 朗缪尔吸附模型 有机化学
作者
Wei Zhang,Liying Zhang,Hua Tian,LI Yong-gan,Xing Zhou,Wenxia Wang,Zhangchao You,Shuangfeng Wang,Mengjia Li
出处
期刊:Environmental Pollution [Elsevier BV]
卷期号:257: 113440-113440 被引量:76
标识
DOI:10.1016/j.envpol.2019.113440
摘要

More attention was paid to the attachment between microplastics and environmental pollutants. The adsorption performance of Polyethylene (PE) beads (a typical type of microplastics) and Cr(VI) ions with the existence of sodium dodecyl benzene sulfonate (SDBS) was investigated in this paper. The adsorption experiments of Cr(VI) ions by PE microplastics were conducted at different conditions, i.e. PE doses, pH and SDBS concentrations, respectively. The adsorption capability of Cr(VI) ions was increased from 0.39 to 1.36 mg⋅g-1 when the dosage of PE microplastics was increased from 2 to 14 g ⋅L-1 at pH of 5 with addition of SDBS, compared with increasing adsorption capability from 0.03 to 0.32 mg⋅g-1 without addition of SDBS. The pH would influence the adsorption capability with and without the addition of SDBS. When the pH was less than 6, the adsorption capability of Cr(VI) would be promoted by the addition of SDBS; however, there was a contrast tendency when the pH was more than 6, which was attributed to that SDBS would compete with CrO42- for occupying the adsorption sites of PE microplastic. The SDBS concentration would affect the adsorption performance of Cr(VI) ions onto PE microplastics. The peak of the adsorption capacity was at SDBS concentration between 1 and 1.5 mM. This research would provide a basis for investigating the influence of SDBS on adsorption performance of heavy metal by PE microplastics to simulate the surface attachment model of those three kinds of pollutants.
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
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
月儿完成签到 ,获得积分10
2秒前
前程似锦完成签到 ,获得积分10
3秒前
小丽完成签到,获得积分10
6秒前
wonwojo完成签到 ,获得积分10
8秒前
WXM完成签到 ,获得积分0
13秒前
Linus完成签到 ,获得积分10
15秒前
xcwy完成签到,获得积分10
19秒前
清风完成签到 ,获得积分10
19秒前
-Me完成签到 ,获得积分10
22秒前
领导范儿应助颜沛文采纳,获得10
22秒前
ROMANTIC完成签到 ,获得积分10
24秒前
30秒前
娟娟完成签到 ,获得积分10
30秒前
富贵儿完成签到 ,获得积分10
30秒前
颜沛文发布了新的文献求助10
33秒前
健脊护柱完成签到 ,获得积分10
34秒前
张小度ever完成签到 ,获得积分10
36秒前
爆米花发布了新的文献求助200
38秒前
颜沛文完成签到,获得积分10
39秒前
花花猪1989完成签到 ,获得积分10
42秒前
一三二五七完成签到 ,获得积分0
43秒前
HY完成签到,获得积分10
44秒前
荔枝完成签到 ,获得积分10
45秒前
sunnyqqz完成签到,获得积分10
54秒前
耍酷的指甲油完成签到,获得积分10
1分钟前
杨一完成签到 ,获得积分10
1分钟前
万能图书馆应助热潮采纳,获得10
1分钟前
科研通AI2S应助科研通管家采纳,获得10
1分钟前
1分钟前
隐形曼青应助科研通管家采纳,获得10
1分钟前
完美世界应助科研通管家采纳,获得10
1分钟前
36456657应助科研通管家采纳,获得10
1分钟前
科研通AI2S应助科研通管家采纳,获得10
1分钟前
1分钟前
英俊的铭应助科研通管家采纳,获得50
1分钟前
研友_VZG7GZ应助科研通管家采纳,获得10
1分钟前
1分钟前
36456657应助科研通管家采纳,获得10
1分钟前
Jasper应助科研通管家采纳,获得10
1分钟前
1分钟前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2700
Neuromuscular and Electrodiagnostic Medicine Board Review 1000
こんなに痛いのにどうして「なんでもない」と医者にいわれてしまうのでしょうか 510
The First Nuclear Era: The Life and Times of a Technological Fixer 500
岡本唐貴自伝的回想画集 500
Distinct Aggregation Behaviors and Rheological Responses of Two Terminally Functionalized Polyisoprenes with Different Quadruple Hydrogen Bonding Motifs 450
Ciprofol versus propofol for adult sedation in gastrointestinal endoscopic procedures: a systematic review and meta-analysis 400
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 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3671358
求助须知:如何正确求助?哪些是违规求助? 3228175
关于积分的说明 9778776
捐赠科研通 2938469
什么是DOI,文献DOI怎么找? 1610028
邀请新用户注册赠送积分活动 760503
科研通“疑难数据库(出版商)”最低求助积分说明 736020