Influence of sulfamethazine (SMT) on the adsorption of antimony by the black soil: Implication for the complexation between SMT and antimony

doi:10.1016/j.scitotenv.2020.143318

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Influence of sulfamethazine (SMT) on the adsorption of antimony by the black soil: Implication for the complexation between SMT and antimony
	Fan, Yurui 1; Zheng, Chunli 1,2,5; Lin, Zishen 1; Huo, Aidi 3,4,5; Li, Risheng 6; He, Chi 1
通讯作者	Zheng, Chunli(clzheng@mail.xjtu.edu.cn) ; Huo, Aidi(huoaidi@chd.edu.cn)
	2021-03-15
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	760 页码:12
摘要	This paper reported when sulfamethazine (SMT) and antimony (Sb(V)) coexisted in aqueous solution at pH of 3.0, 5.0 and 7.0, the complexation between SMT and Sb(V) occurred. Such a complexation impeded the adsorption of Sb(V) on the black soil. The higher the solution pH value was, the more the amount of Sb(V) was prevented from adsorbing on the black soil. The maximum adsorption capacity (qm) of Sb(V) at the presence of SMT under pH of 3.0, 5.0 and 7.0was 5.28, 3.45 and 1.95 mg/g, respectively. -NH2, N-H, S = O and C-\N of pyrimidine ring carried by SMT acted as the complexation sites with Sb(V). The complexation constant K were- 3.15,-3.26 and- 3.48 at pH of 7.0, 5.0 and 3.0, respectively, indicating that the complexation strength between SMT and Sb(V) followed the order of pH 7.0 > pH 5.0 > pH 3.0. The binding energy between Sb(V) and the C-N group of pyrimidine ring was the highest (1.42 eV), and then followed by the groups of -NH (1.37 eV), S = O (0.66 eV) and -NH2 (0.39 eV). Besides S = O and C-N, Sb(V) tends to complex with N-H via coordination bond at pH of 7.0 while -NH2 via cation-p interaction at pH 3.0 and 5.0. Compared to pH of 5.0, the strength of cation-p interaction at pH of 3.0 weakened according to the molecular electrostatic potentialmap. These results demonstrated that different from the situation where Sb(V) exists in aqueous solution alone, the coexistence of SMT with Sb(V) affected the adsorption behavior of Sb(V) in soil and solution pH was also an influence factor. These findings in this paperwould be helpful for further understanding themobility, bioavailability and other environmental behavior of Sb(V) in soil when Sb(V) coexists with antibiotics even other organic compounds. (C) 2020 Elsevier B.V. All rights reserved.
关键词	Antimony(V) Sulfamethazine Adsorption Complexation Soil
DOI	10.1016/j.scitotenv.2020.143318
关键词[WOS]	ORGANIC-MATTER DOM ; SORPTION PROCESS ; CU(II) ; FLUORESCENCE ; COADSORPTION ; SULFAMETHOXAZOLE ; CIPROFLOXACIN ; TETRACYCLINE ; ANTIBIOTICS ; POLLUTION
收录类别	SCI ; SCI
语种	英语
资助项目	Key R&D Program of Shaanxi Province[2019SF-253] ; Key R&D Program of Shaanxi Province[2020SF-424] ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS[SKLLQG1909] ; National Natural Science Foundation of China[41877232] ; National Natural Science Foundation of China[41790444] ; High-tech Research Cultivation Project, CHD[300102299201] ; Instrument Analysis Center of Xi'an Jiaotong University
WOS研究方向	Environmental Sciences & Ecology
项目资助者	Key R&D Program of Shaanxi Province ; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS ; National Natural Science Foundation of China ; High-tech Research Cultivation Project, CHD ; Instrument Analysis Center of Xi'an Jiaotong University
WOS类目	Environmental Sciences
WOS记录号	WOS:000607779400006
出版者	ELSEVIER
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15856
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Zheng, Chunli; Huo, Aidi
作者单位	1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Sch Energy & Power Engn, Xian 710049, Peoples R China 2.Xi An Jiao Tong Univ, Minist Educ, Key Lab Thermofluid Sci & Engn, Xian 710049, Peoples R China 3.Changan Univ, Key Lab Subsurface Hydrol & Ecol Effects Arid Reg, Minist Educ, Xian 710054, Peoples R China 4.Changan Univ, Sch Water & Environm, Xian 710054, Peoples R China 5.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian, Peoples R China 6.Shaanxi Prov Land Engn Construct Grp Co Ltd, Inst Land Engn & Technol, Xian, Peoples R China
推荐引用方式 GB/T 7714	Fan, Yurui,Zheng, Chunli,Lin, Zishen,et al. Influence of sulfamethazine (SMT) on the adsorption of antimony by the black soil: Implication for the complexation between SMT and antimony[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,760:12.
APA	Fan, Yurui,Zheng, Chunli,Lin, Zishen,Huo, Aidi,Li, Risheng,&He, Chi.(2021).Influence of sulfamethazine (SMT) on the adsorption of antimony by the black soil: Implication for the complexation between SMT and antimony.SCIENCE OF THE TOTAL ENVIRONMENT,760,12.
MLA	Fan, Yurui,et al."Influence of sulfamethazine (SMT) on the adsorption of antimony by the black soil: Implication for the complexation between SMT and antimony".SCIENCE OF THE TOTAL ENVIRONMENT 760(2021):12.