干旱区生态环境知识资源中心(Arid): 疏水纳米材料修复酞酸酯污染土壤及水体

Arid

	疏水纳米材料修复酞酸酯污染土壤及水体
其他题名	Effects of Salinity and pH Value on Adsorption of Dibutyl Phthalate in Mulching Farmland Soil to Nanomaterial Adsorbent
	刘帅 1; 潘响亮 2
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2018
卷号	35 期号:5 页码:1084-1090
中文摘要	新疆农田土壤及周边河湖沉积物中酞酸酯污染非常严重,由于干旱的气候条件,现有微生物修复技术往往难以适用治理新疆地膜造成的酞酸酯污染。因此,迫切需要研发酞酸酯污染土壤及水体的修复技术及材料。基于应用材料表面的强疏水性对酞酸酯的优异吸附性能的原理,采用多巴胺聚合将3种纳米颗粒(BN、SiO_2、Fe_3O_4)改性得到疏水性良好的材料,并通过SEM-EDS、ATR-FTIR光谱、Raman光谱、N2吸附脱附曲线等对改性材料进行表征。以新疆地膜污染土壤中常见的酞酸酯、邻苯二甲酸二丁酯作为目标污染物进行吸附性能实验,结果表明:所研发的改性材料对邻苯二甲酸二丁酯具有良好的吸附效果,平衡吸附量可达218. 63 mg·g-1;吸附可以在220 min内达到平衡,吸附动力学符合准二级动力学方程;吸附等温线用Langmuir与Freundlich模型均能良好的拟合,后者的相关性更好;并在pH(2 ~ 12)与氯化钠盐度(高达4%)下,材料就能保持良好的吸附效果。该材料在修复干旱区酞酸酯污染土壤、沉积物及水体中具有广阔应用前景。
英文摘要	Plastic film mulching is the most intensively applied in agricultural production in Xinjiang Uygur Autonomous Region,but a serious phthalate pollution is caused in farmland soil and lake or river sediments. Application of the traditional bioremediation technologies is strongly challenged in this area due to the extremely arid climate. It is urgent to develop the remediation technologies and materials suitable in arid region. In this study, three kinds of nanoparticles (BN,SiO_2 and Fe_3O_4) were modified to be as the hydrophobic material surface by polymerization of dopamine based on considering the strong hydrophobicity of materials with a strong adsorption capacity for phthalate. The materials were characterized by SEM-EDS,ATR-FTIR spectroscopy and Raman spectroscopy. The results showed that the adsorbent has an excellent adsorption capacity for dibutyl phthalate, the equilibrium adsorption capacity could be as high as 218. 63 mg·g-1,and an equilibrium could be achieved within 220 minutes. The adsorption kinetics follows the pseudo-second order kinetic equation. Both the Langmuir and Freundlich models could be used to satisfactorily describe the kinetics. A strong dibutyl phthalate adsorption capability could be maintained under pH value range from 2 to 12 and at a salinity of 40 g·L~(-1). This nanomaterial adsorbent has a great potential in remediation of phthalate pollution of farmland soil and lake or river sediments.
中文关键词	地膜污染 ; 土壤 ; 水体 ; 酞酸酯 ; 疏水改性 ; 纳米颗粒 ; 吸附 ; 新疆
英文关键词	field film pollution soil water phthalate hydrophobicity nanoparticle adsorption Xinjiang
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6334386
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237676
作者单位	1.中国科学院新疆生态与地理研究所;;中国科学院大学, 新疆干旱区环境污染与生态修复重点实验室;;, 乌鲁木齐;;, 新疆;;北京 830011;;100049, 中国; 2.中国科学院新疆生态与地理研究所;;浙江工业大学环境学院, 新疆干旱区环境污染与生态修复重点实验室;;, 乌鲁木齐;;杭州, 新疆;;浙江 830011;;310014, 中国
推荐引用方式 GB/T 7714	刘帅,潘响亮. 疏水纳米材料修复酞酸酯污染土壤及水体[J]. 中国科学院新疆生态与地理研究所,2018,35(5):1084-1090.
APA	刘帅,&潘响亮.(2018).疏水纳米材料修复酞酸酯污染土壤及水体.干旱区研究,35(5),1084-1090.
MLA	刘帅,et al."疏水纳米材料修复酞酸酯污染土壤及水体".干旱区研究 35.5(2018):1084-1090.