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Nnaji JC, Amaku JF, Amadi OK, Nwadinobi SI. Evaluation and remediation protocol of selected organochlorine pesticides and heavy metals in industrial wastewater using nanoparticles (NPs) in Nigeria. Sci Rep 2023; 13:2170. [PMID: 36750624 PMCID: PMC9905072 DOI: 10.1038/s41598-023-28761-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/24/2023] [Indexed: 02/09/2023] Open
Abstract
Limited knowledge of the level of contaminants in industrial wastewater within the Nigerian states together with the global challenge of water supply have compelled our investigation into the analyses and removal of organochlorine pesticides (OCPs) and heavy metal contents in industrial wastewater. Wastewater samples were collected from 13 industries across five states in Nigeria. The OCPs content of the samples was extracted, cleaned up and analysed using gas chromatography-mass spectrometry. The results indicate that the mean concentrations of the OCPs in the effluent samples ranged from 1.76 ng L-1 (Dieldrin) to 0.89 ng L-1 (endrin). Cadmium (Cd), chromium (Cr) and lead (Pb) were evaluated in all the effluent water samples. The results show that the average concentrations of the heavy metal ions in the effluent samples ranged from 0.008 ± 0.003 mg L-1 (Cd) to 2.215 ± 0.841 mg L-1 (Pb). For the removal of the identified contaminants, biomagnetite nanoparticles (BioMag), magnetite nanoparticles (MagNPs), biomagnetite-CMC nanocomposite (BioMag-CMC) and magnetite-CMC nanocomposite (MagNPs-CMC) were synthesised and characterised using Braunauer-Emmett-Teller (BET), Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and high resolution-transmission electron microscopy (HR-TEM). This study demonstrates the successful application of nanoparticles (NPs) and nanocomposites in the removal of OCPs and heavy metal ions in industrial effluents. The routine assessment and continuous removal become important to attain a state of clean and healthy aquatic ecosystem due to rapid industrial and technological advances.
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Affiliation(s)
- Jude Chidozie Nnaji
- grid.442668.a0000 0004 1764 1269Department of Chemistry, Michael Okpara University of Agriculture Umudike, P.M.B 7267, Umuahia, Abia Nigeria
| | - James Friday Amaku
- Department of Chemistry, Michael Okpara University of Agriculture Umudike, P.M.B 7267, Umuahia, Abia, Nigeria.
| | - Okoche Kelvin Amadi
- grid.442668.a0000 0004 1764 1269Department of Chemistry, Michael Okpara University of Agriculture Umudike, P.M.B 7267, Umuahia, Abia Nigeria
| | - Solomon Ireji Nwadinobi
- grid.442668.a0000 0004 1764 1269Department of Chemistry, Michael Okpara University of Agriculture Umudike, P.M.B 7267, Umuahia, Abia Nigeria
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2
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Iubel JPG, Braga SM, Braga MCB. The importance of organic carbon as a coadjutant in the transport of pollutants. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:1557-1565. [PMID: 34662296 DOI: 10.2166/wst.2021.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Dissolved organic carbon (DOC) is a physicochemical parameter widely used in the evaluation of surface water quality; however, its role as an agent of transport and transference of pollutants sometimes is still disregarded. The heterogeneous composition of DOC, predominantly composed of humin, humic and fulvic acids, renders it an inherent capacity to bind to organic and inorganic pollutants. This is an important feature when the knowledge of present and future conditions of aquatic environments is of concern. Some authors concluded that DOC is a controlling agent of mobility of metals, phosphorus, herbicides, and pesticides, among others. Nevertheless, some physical and chemical conditions in the water column and in the sediment can immobilize the contaminants and make the DOC less soluble, which will hamper the formation of DOC-pollutant complexes. This mini review is intended to present the importance of DOC quantification and some information on its association with water contaminants, which could render them unavailable for uptake.
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Affiliation(s)
- Juliana Pisa Grudzien Iubel
- School of Engineering - Polytechnic Center, Department of Hydraulics and Sanitation, Water Resources and Environmental Engineering Post-Graduate Program, Parana Federal University, Curitiba, Brazil E-mail:
| | - Sérgio Michelotto Braga
- School of Engineering - Polytechnic Center, Department of Hydraulics and Sanitation, Water Resources and Environmental Engineering Post-Graduate Program, Parana Federal University, Curitiba, Brazil E-mail:
| | - Maria Cristina Borba Braga
- School of Engineering - Polytechnic Center, Department of Hydraulics and Sanitation, Water Resources and Environmental Engineering Post-Graduate Program, Parana Federal University, Curitiba, Brazil E-mail:
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3
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Cao Y, Zhao M, Ma X, Song Y, Zuo S, Li H, Deng W. A critical review on the interactions of microplastics with heavy metals: Mechanism and their combined effect on organisms and humans. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 788:147620. [PMID: 34029813 DOI: 10.1016/j.scitotenv.2021.147620] [Citation(s) in RCA: 156] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 05/22/2023]
Abstract
Although individual toxicity of microplastics (MPs) to organism has been widely studied, limited knowledge is available on the interactions between heavy metals and MPs, as well as potential biological impacts from their combinations. The interaction between MPs and heavy metals may alter their environmental behaviors, bioavailability and potential toxicity, leading to ecological risks. In this paper, an overview of different sources of heavy metals on MPs is provided. Then the recent achievements in adsorption isotherms, adsorption kinetics and interaction mechanism between MPs and heavy metals are discussed. Besides, the factors that influence the adsorption of heavy metals on MPs such as polymer properties, chemical properties of heavy metals, and other environmental factors are also considered. Furthermore, potential combined toxic effects from MPs and heavy metals on organisms and human health are further summarized.
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Affiliation(s)
- Yanxiao Cao
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan 430073, China; School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China.
| | - Mengjie Zhao
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan 430073, China; School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China
| | - Xianying Ma
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan 430073, China; School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China
| | - Yongwei Song
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan 430073, China; School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China
| | - Shihan Zuo
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan 430073, China; School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China
| | - Honghu Li
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan 430073, China; School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China
| | - Wenzhuo Deng
- Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan 430073, China; School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan 430073, China
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4
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Astuti W, Chafidz A, Al-Fatesh AS, Fakeeha AH. Removal of lead (Pb(II)) and zinc (Zn(II)) from aqueous solution using coal fly ash (CFA) as a dual-sites adsorbent. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.08.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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5
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Tang S, Lin L, Wang X, Sun X, Yu A. Adsorption of fulvic acid onto polyamide 6 microplastics: Influencing factors, kinetics modeling, site energy distribution and interaction mechanisms. CHEMOSPHERE 2021; 272:129638. [PMID: 33485046 DOI: 10.1016/j.chemosphere.2021.129638] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
Information on the interactions of microplastics (MPs) with dissolved organic matter (DOM) is essential for understanding their environmental impacts. This study selected fulvic acid (FA) as a typical DOM to investigate the influence of contact time, temperature, dosage, solution pH, salinity, and coexisting metal ions on the adsorption of FA onto polyamide 6 (PA6) MPs. The adsorption kinetic and isotherm can be successfully described by mixed-order (MO) and Freundlich models. The adsorption site energy distribution based on the Freundlich equation was applied to analyze the interaction between FA and PA6-MPs and the adsorption site heterogeneity. Thermodynamic analysis demonstrated that the values of parameters (ΔGads°, ΔSads°, ΔHads°) were significantly affected by initial solution concentrations and the adsorption process was spontaneous, endothermic, and randomness-increased. Fourier transform-infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS) revealed the importance of amide functional groups of PA6-MPs in controlling FA adsorption. Hydrogen bonds, hydrophobic, electrostatic, and n-π electron donor-acceptor (n-π EDA) interactions played different roles on adsorption of FA under different conditions of solution chemistry. These findings are beneficial to provide new insights involving the adsorption behavior and interaction mechanisms of FA onto PA6-MPs for the environmental risk assessment of MPs.
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Affiliation(s)
- Shuai Tang
- School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu, 222005, China
| | - Lujian Lin
- School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu, 222005, China
| | - Xuesong Wang
- School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu, 222005, China.
| | - Xuan Sun
- School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu, 222005, China
| | - Anqi Yu
- School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, Jiangsu, 222005, China
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6
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Tang S, Lin L, Wang X, Yu A, Sun X. Interfacial interactions between collected nylon microplastics and three divalent metal ions (Cu(II), Ni(II), Zn(II)) in aqueous solutions. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123548. [PMID: 32795818 DOI: 10.1016/j.jhazmat.2020.123548] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/04/2020] [Accepted: 07/21/2020] [Indexed: 05/22/2023]
Abstract
In water environments, nylon microplastics (MPs) and heavy metals are two kinds of common pollutants. This study investigated the adsorption of three divalent metals (Cu(II), Ni(II), Zn(II)) onto collected nylon MPs as function of contact time, temperature, solution pH, ionic strength and concentration of fulvic acid (FA). The kinetic data fitted well with the Elovich and pseudo-second order equations. The result of shrinking core model (SCM) confirms that the adsorption of Cu(II) and Zn(II) was mainly controlled by intraparticle diffusion. The adsorption of three metal ions onto collected nylon MPs is spontaneous, endothermic, with an increased randomness in nature. The Langmuir and Freundlich models successfully described the adsorption isotherms. The speciation distributions of three divalent metals in aqueous solutions were identified to analyze the effects of initial solution pH, ionic strength and fulvic acid concentrations on the adsorption amounts. X-ray photoelectron spectroscopy (XPS) analysis indicates the importance of surface O-containing groups of collected nylon MPs in controlling the adsorption of three metal ions. This research provides a clear theoretical basis for the behavior of nylon MPs as heavy metals (Cu(II), Ni(II), Zn(II)) carrier and highlights their environmental toxicity, which deserves to be further concerned.
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Affiliation(s)
- Shuai Tang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Lujian Lin
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Xuesong Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China.
| | - Anqi Yu
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
| | - Xuan Sun
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Jiangsu Ocean University, Lianyungang, Jiangsu 222005, China
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7
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Li F, Chen C, Wang Y, Li W, Zhou G, Zhang H, Zhang J, Wang J. Activated carbon-hybridized and amine-modified polyacrylonitrile nanofibers toward ultrahigh and recyclable metal ion and dye adsorption from wastewater. Front Chem Sci Eng 2021. [DOI: 10.1007/s11705-020-2000-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Tighadouini S, Radi S, El Massaoudi M, Lakbaibi Z, Ferbinteanu M, Garcia Y. Efficient and Environmentally Friendly Adsorbent Based on β-Ketoenol-Pyrazole-Thiophene for Heavy-Metal Ion Removal from Aquatic Medium: A Combined Experimental and Theoretical Study. ACS OMEGA 2020; 5:17324-17336. [PMID: 32715217 PMCID: PMC7377074 DOI: 10.1021/acsomega.0c01616] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/19/2020] [Indexed: 05/16/2023]
Abstract
A new sustainable and environmentally friendly adsorbent based on a β-ketoenol-pyrazole-thiophene receptor grafted onto a silica surface was developed and applied to the removal of heavy-metal ions (Pb(II), Cu(II), Zn(II), and Cd(II)) from aquatic medium. The new material SiNPz-Th was well characterized and confirms the success of covalent binding of the receptor on the silica surface. The effect of environmental parameters on adsorption including pH, contact time, temperature, and the initial concentration were investigated. The maximum adsorption capacities of SiNPz-Th for Pb(II), Cu(II), Zn(II), and Cd(II) ions were 102.20, 76.42, 68.95, and 32.68 mg/g, respectively, at 30 min and pH = 6. The adsorption isotherms, kinetics, and thermodynamic process were investigated and showed efficiency and selectivity toward Pb(II) and good regeneration performance. Density functional theory, noncovalent-interaction, and quantum theory of atoms in molecules calculations were used to study and to gain a deeper understanding of both the adsorption mechanism and selectivity of metal ions onto the adsorbent. Accordingly, metal ions such as Pb(II), Cu(II), and Zn(II) were bidentate coordinated with the adsorbent by nitrogen and oxygen atoms of the Schiff base C=N and hydroxyl group -OH, respectively, to form stable complexes. Whereas Cd(II) was coordinated in a monodentate fashion with oxygen atom of the hydroxyl group. Furthermore, the affinity of SiNPz-Th toward the metal ions was decreased in the order of Pb(II) > Cu(II) > Zn(II) > Cd(II), in good agreement with the experimental results. All these results highlight that SiNPz-Th has good potential to be an advanced adsorbent for the removal of lead ions from real water.
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Affiliation(s)
- Said Tighadouini
- Laboratoire
de Synthèse Organique, Extraction et Valorisation, Faculté
des Sciences Aïn-Chock, Université
Hassan II Casablanca, Casablanca 20100, Maroc
| | - Smaail Radi
- Laboratoire
de Chimie Appliquée et Environnement (LCAE), Faculté
des Sciences, Université Mohamed
Premier, Oujda 60000, Morocco
- Centre
de l’Oriental des Sciences et Technologies de l’Eau
(COSTE), Université Mohamed Premier, Oujda 60000, Morocco
| | - Mohamed El Massaoudi
- Laboratoire
de Chimie Appliquée et Environnement (LCAE), Faculté
des Sciences, Université Mohamed
Premier, Oujda 60000, Morocco
| | - Zouhair Lakbaibi
- Laboratory
of Natural Substances & Synthesis and Molecular Dynamics, Department
of Chemistry, Faculty of Sciences and Techniques Errachidia, My Ismail University, BP 509 Boutalamine, Errachidia 52000, Morocco
| | - Marilena Ferbinteanu
- Faculty
of Chemistry, Inorganic Chemistry Department, University of Bucharest, Dumbrava Rosie 23, Bucharest 020462, Romania
| | - Yann Garcia
- Institute
of Condensed Matter and Nanosciences, Molecular Chemistry, Materials
and Catalysis Division (IMCN/MOST), Université
Catholique de Louvain, Place Louis Pasteur 1, Louvain-la-Neuve 1348, Belgium
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9
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Shen J, Wang N, Wang YG, Yu D, Ouyang XK. Efficient Adsorption of Pb(II) from Aqueous Solutions by Metal Organic Framework (Zn-BDC) Coated Magnetic Montmorillonite. Polymers (Basel) 2018; 10:E1383. [PMID: 30961308 PMCID: PMC6401930 DOI: 10.3390/polym10121383] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 12/25/2022] Open
Abstract
Composite adsorption materials combine the advantages of various adsorptive materials and compensate for the defects of single adsorbents. Magnetic montmorillonite (MMMT) shows good adsorption properties for Pb(II). In order to further improve the adsorption properties of MMMT, in this work, Zn-BDC, a kind of metal⁻organic framework (MOF), was modified onto the surface of MMMT by in situ polymerization. The composite material MMMT@Zn-BDC was characterized by Zetasizer, SEM, TEM, FTIR, XRD, VSM, and XPS. The influence of adsorption conditions on the adsorption capacity of MMMT@Zn-BDC for Pb(II) was examined, including the adsorbent dosage, pH of Pb(II) solution, initial concentration of Pb(II), and the temperature and adsorption time. Also, the adsorption mechanism was studied. The results of this study show that MMMT@Zn-BDC adsorbs Pb(II) via chemisorption. In addition, MMMT@Zn-BDC exhibits good potential for adsorbing Pb(II), including its high adsorption capacity (724.64 mg/g) and good recyclability.
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Affiliation(s)
- Jian Shen
- School of Materials and Chemical Engineering, Ningbo University of Technology, Ningbo 315211, China.
| | - Nan Wang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Yang Guang Wang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Di Yu
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Xiao-Kun Ouyang
- School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China.
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10
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Du H, Huang Q, Peacock CL, Tie B, Lei M, Liu X, Wei X. Competitive binding of Cd, Ni and Cu on goethite organo-mineral composites made with soil bacteria. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:444-452. [PMID: 30216877 DOI: 10.1016/j.envpol.2018.08.087] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/31/2018] [Accepted: 08/26/2018] [Indexed: 06/08/2023]
Abstract
Soil is a heterogeneous porous media that is comprised of a variety of organo-mineral aggregates. Sorption of heavy metals onto these composite solids is a key process that controls heavy metal mobility and fate in the natural environment. Pollution from a combination of heavy metals is common in soil, therefore, understanding the competitive binding behavior of metal ions to organo-mineral composites is important in order to predict metal mobility and fate. In this study, batch experiments were paired with spectroscopic studies to probe the sorption characteristics of ternary CdNiCu sorbates to a binary organo-goethite composite made with Bacillus cereus cells. Scanning electron microscopy shows that goethite nano-sized crystals are closely associated with the bacterial surfaces. Sorption experiments show a larger adsorptivity and affinity for Cu than Cd/Ni on goethite and B. cereus, and the goethite-B. cereus composite. X-ray photoelectron spectroscopy reveals that carboxylate and phosphate functional moieties present on the bacterial cell walls are primarily responsible for metal sorption to the goethite-B. cereus composite. Synchrotron-based X-ray fluorescence shows that Cu and Ni are predominately associated with the bacterial fraction of the goethite-B. cereus composite, whereas Cd is mainly associated with the goethite fraction. The findings of this research have important implications for predicting the mobility and fate of heavy metals in soil multi-component systems.
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Affiliation(s)
- Huihui Du
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China; State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, PR China.
| | - Qiaoyun Huang
- State Key Laboratory of Agricultural Microbiology, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Caroline L Peacock
- University of Leeds, School of Earth and Environment, Leeds, LS2 9JT, UK
| | - Boqing Tie
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China
| | - Ming Lei
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China
| | - Xiaoli Liu
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China
| | - Xiangdong Wei
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, PR China
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11
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Hughes DL, Afsar A, Laventine DM, Shaw EJ, Harwood LM, Hodson ME. Metal removal from soil leachates using DTPA-functionalised maghemite nanoparticles, a potential soil washing technology. CHEMOSPHERE 2018; 209:480-488. [PMID: 29940531 DOI: 10.1016/j.chemosphere.2018.06.121] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 06/14/2018] [Accepted: 06/18/2018] [Indexed: 06/08/2023]
Abstract
There is significant current interest in the application of magnetic (magnetite or maghemite) nanoparticles functionalised with chelating agents for the environmental remediation of metal contaminated waters and solutions. Whilst there is a body of knowledge about the potential remediation efficacy of such engineered nanoparticles from studies involving synthetic solutions of single metals, there is relatively little data involving mixed-metal solutions and virtually no studies about nanoparticle performance in chemically complex environmental solutions representing those to which a scaled-up nanoremediation process might eventually be applied. Therefore, we investigated the ability of diethylenetriaminepentaacetic acid (DTPA)-functionalised, silica-coated maghemite nanoparticles to extract potentially toxic (Cd, Co, Cu) and "non-toxic" (Ca, Mg) metals from solution (initial [metal] = 10 mg L-1; pH range: 2-8) and to extract a wider range of elements (As, Ca, Cd, Co, Cr, Cu, Mg, Na, Pb, Zn) from leachate obtained from 10 different contaminated soils with variable initial pH, (semi-)metal and dissolved organic carbon (DOC) concentrations. The functionalised nanoparticles could extract the potentially toxic metals with high efficiency (in general >70%) from single metal solutions and with efficiencies that were either unaffected or reduced from the soil leachates. Kd values remained high (>500 L kg-1), even for the soil leachate extractions. Our findings show that DOC and relatively high concentrations of non-toxic elements do not necessarily reduce the efficiency of metal contaminant removal by DTPA-functionalised magnetic nanoparticles and thus demonstrate the remediation potential of such particles when added to chemically complex soil-derived contaminated solutions.
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Affiliation(s)
- D L Hughes
- Soil Research Centre, Department of Geography and Environmental Science, School of Archaeology, Geography and Environmental Science, University of Reading, Whiteknights, Reading, RG6 6DW, UK
| | - A Afsar
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
| | - D M Laventine
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
| | - E J Shaw
- Soil Research Centre, Department of Geography and Environmental Science, School of Archaeology, Geography and Environmental Science, University of Reading, Whiteknights, Reading, RG6 6DW, UK
| | - L M Harwood
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
| | - M E Hodson
- Soil Research Centre, Department of Geography and Environmental Science, School of Archaeology, Geography and Environmental Science, University of Reading, Whiteknights, Reading, RG6 6DW, UK; Environment Department, University of York, York, YO10 5NG, UK.
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12
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Adsorption of thorium (IV) by amorphous silica; response surface modelling and optimization. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-6044-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Xu G, Wang L, Xie Y, Tao M, Zhang W. Highly selective and efficient adsorption of Hg 2+ by a recyclable aminophosphonic acid functionalized polyacrylonitrile fiber. JOURNAL OF HAZARDOUS MATERIALS 2018; 344:679-688. [PMID: 29154093 DOI: 10.1016/j.jhazmat.2017.11.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 10/17/2017] [Accepted: 11/08/2017] [Indexed: 05/28/2023]
Abstract
Mercury ions, even an ultra-trace amount in water, present a serious environmental concern. Hence, searching for cost-effective and high-performance Hg2+ adsorbents has acquired increasingly attention but still remained challenging. In this work, aminophosphonic acid was immobilized onto polyacrylonitrile fiber by chemical grafting approaches. The functionalized fiber (PANAPF) possessed high adsorption selectivity and efficiency for Hg2+ when compared with other coexisting ions viz. Pb2+, Cd2+, Ag+, Zn2+, Cu2+, Ni2+, Co2+, Ca2+ and Mg2+. The adsorption results revealed that PANAPF exhibited high removal capacities for Hg2+ over a wide pH range from 3 to 11. The adsorption process was better described by the pseudo second-order kinetic model, indicating the chemical interaction between Hg2+ and active groups on the PANAPF. Moreover, the maximum adsorption capacity as calculated from the Langmuir adsorption model of 358mgg-1 was higher than that of many other adsorbents. The PANAPF could be reused more than 10 times and it is able to decrease Hg2+ below 50μgL-1 which is the maximum discharge standard for mercury containing wastewater in China. A continuous-flow process was also implemented to remove Hg2+. The results suggested the environmentally friendly PANAPF could be a promising candidate for Hg2+ removal in wastewater treatment.
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Affiliation(s)
- Gang Xu
- Department of Chemistry, School of Sciences, Tianjin University, Tianjin, 300072, PR China
| | - Lu Wang
- Department of Chemistry, School of Sciences, Tianjin University, Tianjin, 300072, PR China
| | - Yujia Xie
- Department of Chemistry, School of Sciences, Tianjin University, Tianjin, 300072, PR China
| | - Minli Tao
- Department of Chemistry, School of Sciences, Tianjin University, Tianjin, 300072, PR China.
| | - Wenqin Zhang
- Department of Chemistry, School of Sciences, Tianjin University, Tianjin, 300072, PR China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, PR China
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14
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Tighadouini S, Radi S, Anannaz M, Bacquet M, Degoutin S, Tillard M, Eddike D, Amhamdi H, Garcia Y. Engineering β-ketoenol structure functionality in hybrid silica as excellent adsorbent material for removal of heavy metals from water. NEW J CHEM 2018. [DOI: 10.1039/c8nj01918e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chelating adsorbent based on the chemical modification of silica by an efficient host able to capture toxic metals, is presented.
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Affiliation(s)
- Said Tighadouini
- Laboratoire de Chimie Appliquée et Environnement (LCAE)
- Faculté des Sciences
- Université Mohamed I
- 60000 Oujda
- Morocco
| | - Smaail Radi
- Laboratoire de Chimie Appliquée et Environnement (LCAE)
- Faculté des Sciences
- Université Mohamed I
- 60000 Oujda
- Morocco
| | - Mohamed Anannaz
- Laboratoire de Chimie Appliquée et Environnement (LCAE)
- Faculté des Sciences
- Université Mohamed I
- 60000 Oujda
- Morocco
| | - Maryse Bacquet
- Unité Matériaux et Transformations UMR8207 (UMET)
- Equipe Ingénierie des Systèmes Polymères
- Université des Sciences et Technologies de Lille
- France
| | - Stéphanie Degoutin
- Unité Matériaux et Transformations UMR8207 (UMET)
- Equipe Ingénierie des Systèmes Polymères
- Université des Sciences et Technologies de Lille
- France
| | | | - Driss Eddike
- LCSMA
- Sciences Faculty
- Med I University
- 60000 Oujda
- Morocco
| | - Hassan Amhamdi
- Laboratory of Physical Chemistry of the Nature Resources and Environment
- Faculty of Sciences and Techniques
- Al Hoceima
- (Med I University)
- 32003 Al Hoceima
| | - Yann Garcia
- Institute of Condensed Matter and Nanosciences
- Université catholique de Louvain
- Place Louis Pasteur 1
- 1348 Louvain-la-Neuve
- Belgium
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