Cosorption of Zn(II) and chlortetracycline onto montmorillonite: pH effects and molecular investigations

doi:10.1016/j.jhazmat.2021.127368

	Cosorption of Zn(II) and chlortetracycline onto montmorillonite: pH effects and molecular investigations
	Wang, Lingqing 2,3; Han, Xiaoxiao 2,3; Liang, Tao 2,3; Yan, Xiulan 2,3; Yang, Xiao 2,3; Pei, Zhiguo 3,4; Tian, Shuhan 2,3; Wang, Shengsen 5; Lima, Eder C.6; Rinklebe, Joerg 1,7
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2022-02-15
卷号	424 页码:8
关键词	Zinc Chlortetracycline Montmorillonite Cosorption Speciation
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2021.127368
通讯作者	Liang, Tao(liangt@igsnrr.ac.cn)
英文摘要	Ionic antibiotics and metals generally coexist, and their interaction can affect their sorption behaviors onto soil minerals, therefore determining their environmental hazards. This study investigated the sorption and cosorption of Zn(II) and chlortetracycline (CTC) onto montmorillonite at different solution pH (3-10) using batch experiments and extended X-ray absorption fine structure (EXAFS) analysis. The Langmuir model could reproduce well the sorption isotherms of Zn(II) and CTC. The presence of CTC/Zn(II) could promote the maximum sorption capacity (Qm) of Zn(II)/CTC, based on site energy distribution (SED) theory. Generally, Zn(II) sorption increased with pH increasing. Comparatively, CTC sorption decreased as pH increased till approximately pH 5.0, then increased continuously with pH increasing. Both CTC and Zn(II) co-existence enhanced their individual sorption in both acidic and neutral environments. The processes behind CTC and Zn(II) sorption mainly included cation exchange and surface complexation. The EXAFS data evidenced that the presence of CTC could alter the species of Zn(II) on montmorillonite via surface complexation at pH 4.5 and 7.5, with Zn-CTC complexes being the predominant species on montmorillonite at pH 7.5. At pH 9.5, Zn(II) may exist onto montmorillonite in precipitated form similar to Zn-Al hydrotalcite-like compound (HTlc) regardless of CTC presence.
资助项目	National Natural Science Foundation of China[41771507] ; National Natural Science Foundation of China[42173064] ; National Key Research and Development Program of China[2018YFC1802800]
WOS关键词	SITE ENERGY-DISTRIBUTION ; TYPICAL VETERINARY ANTIBIOTICS ; HEAVY-METALS ; TETRACYCLINE ADSORPTION ; TRACE-ELEMENTS ; CLAY-MINERALS ; SOIL ; SORPTION ; MANURE ; RESISTANCE
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000703251200008
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/165934]
专题	中国科学院地理科学与资源研究所
通讯作者	Liang, Tao
作者单位	1.Sejong Univ, Dept Environm, Dept Environm & Energy, Seoul 05006, South Korea 2.Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 5.Yangzhou Univ, Coll Environm Sci & Engn, Yangzhou 225127, Jiangsu, Peoples R China 6.Fed Univ Rio Grande do Sul UFRGS, Inst Chem, Porto Alegre, RS, Brazil 7.Univ Wuppertal, Sch Architecture & Civil Engn, Inst Fdn Engn Water & Waste Management Soil & Gro, Pauluskirchstr 7, D-42285 Wuppertal, Germany
推荐引用方式 GB/T 7714	Wang, Lingqing,Han, Xiaoxiao,Liang, Tao,et al. Cosorption of Zn(II) and chlortetracycline onto montmorillonite: pH effects and molecular investigations[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,424:8.
APA	Wang, Lingqing.,Han, Xiaoxiao.,Liang, Tao.,Yan, Xiulan.,Yang, Xiao.,...&Rinklebe, Joerg.(2022).Cosorption of Zn(II) and chlortetracycline onto montmorillonite: pH effects and molecular investigations.JOURNAL OF HAZARDOUS MATERIALS,424,8.
MLA	Wang, Lingqing,et al."Cosorption of Zn(II) and chlortetracycline onto montmorillonite: pH effects and molecular investigations".JOURNAL OF HAZARDOUS MATERIALS 424(2022):8.