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Sharma V, Yan R, Feng X, Xu J, Pan M, Kong L, Li L. Removal of toxic metals using iron sulfide particles: A brief overview of modifications and mechanisms. CHEMOSPHERE 2024; 346:140631. [PMID: 37939922 DOI: 10.1016/j.chemosphere.2023.140631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 10/22/2023] [Accepted: 11/04/2023] [Indexed: 11/10/2023]
Abstract
Growing mechanization has released higher concentrations of toxic metals in water and sediment, which is a critical concern for the environment and human health. Recent studies show that naturally occurring and synthetic iron sulfide particles are efficient at removing these hazardous pollutants. This review seeks to provide a concise summary of the evolution in the production of iron sulfide particles, specifically nanoparticles, through the years. This review presents an outline of the synthesis process for the most dominant forms of iron sulfide: mackinawite (FeS), pyrite (FeS2), pyrrhotite (Fe1-x S), and greigite (Fe3S4). The review confirms that both natural forms of iron sulfide and modified forms of iron sulfide are highly effective at removing different heavy metals and metalloids from water. Concurrently, this review reveals the interaction mechanism between toxic metals and iron sulfide, along with the impact of conditions for remedy and rectification. None the less, modifications and future investigations into the synthesis of novel iron sulfides, their use to adsorb diverse environmental pollutants, and their fate after injection into polluted aquifers, remain crucial to maximizing pollution control.
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Affiliation(s)
- Vaishali Sharma
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Ruixin Yan
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 201306, China
| | - Xiuping Feng
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Junqing Xu
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 201306, China
| | - Meitian Pan
- China-UK Low Carbon College, Shanghai Jiao Tong University, Shanghai, 201306, China
| | - Long Kong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Liang Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China.
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Wang J, Xu B. Removal of radionuclide 99Tc from aqueous solution by various adsorbents: A review. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2023; 270:107267. [PMID: 37598575 DOI: 10.1016/j.jenvrad.2023.107267] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/05/2023] [Indexed: 08/22/2023]
Abstract
Technetium isotope 99Tc is a main radioactive waste produced in the process of nuclear reaction, which has the characteristics of long half-life and strong environmental mobility, and can be bio-accumulated in organisms, resulting in serious threat to human health and ecosystem. Adsorption method is widely used in the field of removing radionuclides from water due to the advantages of high treatment rate, simple and mature industrial application. In this review paper, the recent advances in research and application of various adsorption materials for 99Tc pollution treatment were summarized and analyzed for the first time, including inorganic adsorbents, such as activated carbon, zero-valent iron, metallic minerals, clay minerals, layered double hydroxides (LDHs), tin-based materials, and sulfur-based materials; organic adsorbents, such as porous organic polymers (POPs), covalent-organic frameworks (COFs), metal-organic frameworks (MOFs), and ion exchange resin; and biological adsorbents, such as biopolymers (chitosan, cellulose, alginate), and microbial cells. The performance characteristics and the adsorption kinetics and isotherms of various adsorption materials were discussed. This review could deepen the understanding of the adsorptive removal of 99Tc from aqueous solution, and provide a reference for the future research in this field.
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Affiliation(s)
- Jianlong Wang
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China.
| | - Bowen Xu
- Laboratory of Environmental Technology, INET, Tsinghua University, Beijing 100084, PR China
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Golhani DK, Khare A, Burra GK, Jain VK, Rao Mokka J. Microbes induced biofabrication of nanoparticles: a review. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1731539] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Ayush Khare
- Department of Physics, National Institute of Technology, Raipur, India
| | - Gopal Krishna Burra
- SoS in Electronics and Optoelectronics, Pt. Ravishankar Shukla University, Raipur, India
| | - Vikas Kumar Jain
- Department of Chemistry, Government Engineering College, Raipur, India
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Chaudhury S, Mishra V, Shah D. Highly selective separation of pertechnetate from waste water. JOURNAL OF WATER PROCESS ENGINEERING 2019; 31:100896. [DOI: 10.1016/j.jwpe.2019.100896] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Iravani S. Bio-Based Synthesis of Magnetic Nanoparticles and Their Applications. NANOTECHNOLOGY IN THE LIFE SCIENCES 2019. [DOI: 10.1007/978-3-030-16439-3_2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Jencarova J, Luptakova A, Vitkovska N, Matysek D, Jandacka P. Magnetic sorbents biomineralization on the basis of iron sulphides. ENVIRONMENTAL TECHNOLOGY 2018; 39:2916-2925. [PMID: 28818029 DOI: 10.1080/09593330.2017.1369581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Biomineralization means mineral formation under the influence of organisms. Sulphate-reducing bacteria (SRB) constitute an essential role of iron sulphide minerals precipitation. Their composition involves amorphous, non-stoichiometric or crystalline iron sulphides, weakly or strongly magnetic. Variation in environmental conditions can alter the reactive iron species within the mineral, potentially modifying their magnetic properties. Biogenic iron sulphide minerals can be used as heavy metals and toxic ions adsorbents in soil or water remediation. For these reasons, a series of laboratory-scale iron sulphide synthesis experiments with the aim to study the chemical composition, mineralogy and magnetic properties of iron sulphide precipitates were carried out using SRB under various cultivation mode and nutrient medium composition. Energy-dispersive X-ray analysis (EDX) showed formation of iron sulphides in all biogenic samples and iron phosphates in abiotic controls. Results of X-ray diffraction analysis (XRD) in biomineralized samples confirmed nanocrystalline greigite, mackinawite and sulphur alpha. Magnetic measurements showed that sample prepared by static cultivation without addition of fresh nutrient medium was the most magnetic, magnetic hysteresis of sample formed under semicontinuous mode without any nutrient supply was the lowest. Abiotic samples contained only vivianite and they did not prove any significant response to magnetic field.
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Affiliation(s)
- Jana Jencarova
- a Institute of Geotechnics, Slovak Academy of Sciences , Kosice , Slovak Republic
| | - Alena Luptakova
- a Institute of Geotechnics, Slovak Academy of Sciences , Kosice , Slovak Republic
| | - Nikola Vitkovska
- b Institute of Physics, Faculty of Mining and Geology, VSB-Technical University of Ostrava , Ostrava , Czech Republic
| | - Dalibor Matysek
- c Institute of Geological Engineering, Faculty of Mining and Geology, VSB-Technical University of Ostrava , Ostrava , Czech Republic
| | - Petr Jandacka
- b Institute of Physics, Faculty of Mining and Geology, VSB-Technical University of Ostrava , Ostrava , Czech Republic
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Liu H, Zhu Y, Xu B, Li P, Sun Y, Chen T. Mechanical investigation of U(VI) on pyrrhotite by batch, EXAFS and modeling techniques. JOURNAL OF HAZARDOUS MATERIALS 2017; 322:488-498. [PMID: 27776872 DOI: 10.1016/j.jhazmat.2016.10.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/30/2016] [Accepted: 10/09/2016] [Indexed: 06/06/2023]
Abstract
The interaction mechanism of U(VI) on pyrrhotite was demonstrated by batch, spectroscopic and modeling techniques. Pyrite was selected as control group in this study. The removal of U(VI) on pyrite and pyrrhotite significantly decreased with increasing ionic strength from 0.001 to 0.1mol/L at pH 2.0-6.0, whereas the no effect of ionic strength was observed at pH >6.0. The maximum removal capacity of U(VI) on pyrite and pyrrhotite calculated from Langmuir model was 10.20 and 21.34mgg-1 at pH 4.0 and 333K, respectively. The XPS analysis indicated the U(VI) was primarily adsorbed on pyrrhotite and pyrite and then approximately 15.5 and 9.8% of U(VI) were reduced to U(IV) by pyrrhotite and pyrite after 20 days, respectively. Based on the XANES analysis, the adsorption edge of uranium-containing pyrrhotite located between UIVO2(s) and UVIO22+ spectra. The EXAFS analysis demonstrated the inner-sphere surface complexation of U(VI) on pyrrhotite due to the occurrence of U-S shell, whereas the U-U shell revealed the reductive co-precipitates of U(VI) on pyrrhotite/pyrite with increasing reaction times. The surface complexation modeling showed that outer- and inner-surface complexation dominated the U(VI) removal at pH<4 and pH>5.0, respectively. The findings presented herein play a crucial role in the removal of radionuclides on iron sulfide in environmental cleanup applications.
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Affiliation(s)
- Haibo Liu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Yuke Zhu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Bin Xu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Ping Li
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, PR China
| | - Yubing Sun
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, 230031, PR China.
| | - Tianhu Chen
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, 230009, PR China.
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Gong Y, Tang J, Zhao D. Application of iron sulfide particles for groundwater and soil remediation: A review. WATER RESEARCH 2016; 89:309-320. [PMID: 26707732 DOI: 10.1016/j.watres.2015.11.063] [Citation(s) in RCA: 168] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 11/26/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
Rapid industrialization and urbanization have resulted in elevated concentrations of hazardous inorganic and organic contaminants in groundwater and soil, which has become a paramount concern to the environment and the public health. In recent years, iron sulfide (FeS), a major constituent of acid-volatile sulfides, has elicited extensive interests in environmental remediation due to its ubiquitous presence and high treatment efficiency in anoxic environment. This paper provides a comprehensive review on recent advances in: (1) synthesis of FeS particles (including nanoscale FeS); and (2) reactivity of FeS towards a variety of common environmental contaminants in groundwater and soil over extended periods of time, namely, heavy metals (Hg(II), Cu(II), Pb(II), and Cr(VI)), oxyanions (arsenite, arsenate, selenite, and selenate), radionuclides (e.g., uranium (U) and neptunium (Np)), chlorinated organic compounds (e.g., trichloroethane, trichloroethylene, and p-chloroaniline), nitroaromatic compounds, and polychlorinated biphenyls. Different physiochemical and biological methods for preparing FeS with desired particle size, structure, and surface properties are discussed. Reaction principles and removal effectiveness/constraints are discussed in details. Special attention is placed to the application of nanoscale FeS particles because of their unique properties, such as small particle size, large specific surface area, high surface reactivity, and soil deliverability in the subsurface. Moreover, current knowledge gaps and further research needs are identified.
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Affiliation(s)
- Yanyan Gong
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Jingchun Tang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Engineering Center of Environmental Diagnosis and Contamination Remediation, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, China
| | - Dongye Zhao
- Environmental Engineering Program, Department of Civil Engineering, Auburn University, Auburn, AL, 36849, USA.
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Green Synthesis and Spectroscopic Characterization of Nanoparticles. NANOSCIENCE IN FOOD AND AGRICULTURE 1 2016. [DOI: 10.1007/978-3-319-39303-2_3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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10
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Li L, Xu M, Chubik M, Chubik M, Gromov A, Wei G, Han W. Entrapment of radioactive uranium from wastewater by using fungus-Fe3O4 bio-nanocomposites. RSC Adv 2015. [DOI: 10.1039/c5ra03643g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Magnetically separable adsorbents with high sorption capacity for nuclear wastewater treatment have been successfully synthesized on the basis of fungus-Fe3O4 nanoparticle bio-nanocomposites through a simple co-culture method.
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Affiliation(s)
- La Li
- College of Physics
- Jilin University
- Changchun
- P. R. China
| | - Mingze Xu
- College of Physics
- Jilin University
- Changchun
- P. R. China
| | | | | | - Alexander Gromov
- College of Physics
- Jilin University
- Changchun
- P. R. China
- Tomsk Polytechnical University
| | - Guodong Wei
- School of Materials
- Ningbo University of Technology
- Ningbo City 315016
- P.R. China
| | - Wei Han
- College of Physics
- Jilin University
- Changchun
- P. R. China
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11
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Bacteria in Nanoparticle Synthesis: Current Status and Future Prospects. INTERNATIONAL SCHOLARLY RESEARCH NOTICES 2014; 2014:359316. [PMID: 27355054 PMCID: PMC4897565 DOI: 10.1155/2014/359316] [Citation(s) in RCA: 125] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 07/09/2014] [Accepted: 08/04/2014] [Indexed: 11/17/2022]
Abstract
Microbial metal reduction can be a strategy for remediation of metal contaminations and wastes. Bacteria are capable of mobilization and immobilization of metals and in some cases, the bacteria which can reduce metal ions show the ability to precipitate metals at nanometer scale. Biosynthesis of nanoparticles (NPs) using bacteria has emerged as rapidly developing research area in green nanotechnology across the globe with various biological entities being employed in synthesis of NPs constantly forming an impute alternative for conventional chemical and physical methods. Optimization of the processes can result in synthesis of NPs with desired morphologies and controlled sizes, fast and clean. The aim of this review is, therefore, to make a reflection on the current state and future prospects and especially the possibilities and limitations of the above mentioned bio-based technique for industries.
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Li D, Kaplan DI, Knox AS, Crapse KP, Diprete DP. Aqueous (99)Tc, (129)I and (137)Cs removal from contaminated groundwater and sediments using highly effective low-cost sorbents. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2014; 136:56-63. [PMID: 24905141 DOI: 10.1016/j.jenvrad.2014.05.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 05/13/2014] [Accepted: 05/14/2014] [Indexed: 06/03/2023]
Abstract
Technetium-99 ((99)Tc), iodine-129 ((129)I), and cesium-137 ((137)Cs) are among the key risk-drivers for environmental cleanup. Immobilizing these radionuclides, especially TcO4(-) and I(-), has been challenging. TcO4(-) and I(-) bind very weakly to most sediments, such that distribution coefficients (Kd values; radionuclide concentration ratio of solids to liquids) are typically <2 mL/g; while Cs sorbs somewhat more strongly (Kd ∼ 50 mL/g). The objective of this laboratory study was to evaluate 13 cost-effective sorbents for TcO4(-), I(-), and Cs(+) uptake from contaminated groundwater and sediments. Two organoclays sorbed large amounts of TcO4(-) (Kd > 1 × 10(5) mL/g), I(-) (Kd ≥ 1 × 10(4) mL/g), and Cs(+) (Kd > 1 × 10(3) mL/g) and also demonstrated a largely irreversible binding of the radionuclides. Activated carbon GAC 830 was effective at sorbing TcO4(-) (Kd > 1 × 10(5) mL/g) and I(-) (Kd = 6.9 × 10(3) mL/g), while a surfactant modified chabazite was effective at sorbing TcO4(-) (Kd > 2.5 × 10(4) mL/g) and Cs(+) (Kd > 6.5 × 10(3) mL/g). Several sorbents were effective for only one radionuclide, e.g., modified zeolite Y had TcO4(-)Kd > 2.3 × 10(5) mL/g, AgS had I(-) Kd = 2.5 × 10(4) mL/g, and illite, chabazite, surfactant modified clinoptilolite, and thiol-SAMMS had Cs(+)Kd > 10(3) mL/g. These low-cost and high capacity sorbents may provide a sustainable solution for environmental remediation.
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Affiliation(s)
- Dien Li
- Savannah River National Laboratory, Aiken, SC 29808, United States.
| | - Daniel I Kaplan
- Savannah River National Laboratory, Aiken, SC 29808, United States
| | - Anna S Knox
- Savannah River National Laboratory, Aiken, SC 29808, United States
| | | | - David P Diprete
- Savannah River National Laboratory, Aiken, SC 29808, United States
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Han DS, Orillano M, Khodary A, Duan Y, Batchelor B, Abdel-Wahab A. Reactive iron sulfide (FeS)-supported ultrafiltration for removal of mercury (Hg(II)) from water. WATER RESEARCH 2014; 53:310-321. [PMID: 24530550 DOI: 10.1016/j.watres.2014.01.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2013] [Revised: 01/15/2014] [Accepted: 01/18/2014] [Indexed: 06/03/2023]
Abstract
This study investigated removal of Hg(II) from water using FeS(s) with batch and continuous contact filtration systems. For the batch system, kinetic experiments showed that removal of Hg(II) by FeS(s) was rapid at lower concentration (500 μM), but at higher concentration (1000 and 1250 μM), more time was required to achieve greater than 99% removal. The concentration of iron released to the solution remained relatively low, typically below 3 μM. This would theoretically present less than 1% of the Hg(II) removed. Thus, a simple exchange of Hg(II) for Fe(II) in the solid (FeS(s)) does not explain the results, but if the Fe(II) released could react to form another solids, low concentrations of Fe do not preclude a mechanism in which Hg(II) reacts to form HgS and release Fe(II). A continuous contact dead-end ultrafiltration (DE/UF) system was developed to treat water containing Hg(II) by applying a FeS(s) suspension with stirred or non-stirred modes. A major reason for applying stirring to the system was to investigate the role of "shear" flow in rejection of Hg(II)-contacted FeS(s) by a UF membrane and the stability of Hg on the FeS(s). The Hg(II)-contacted FeS(s) was completely rejected by the DE/UF system and mercury was strongly retained on the FeS(s) particles. Almost no release of Hg(II) (≈0 mM) from the FeS(s) solids was observed when they were contacted with 0.1M-thiosulfate, regardless of whether the system was operated in stirred or non-stirred mode. However, rapid oxidation of FeS(s) was observed in the stirred system but not in the non-stirred system. Determining the mechanism of oxidation requires further study, but it is important because oxidation reduces the ability of the solids to remove additional Hg(II).
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Affiliation(s)
- Dong Suk Han
- Chemical Engineering Program, Texas A&M University at Qatar, Education City, Doha 23874, Qatar.
| | - Maria Orillano
- Chemical Engineering Program, Texas A&M University at Qatar, Education City, Doha 23874, Qatar
| | - Ahmed Khodary
- Chemical Engineering Program, Texas A&M University at Qatar, Education City, Doha 23874, Qatar
| | - Yuhang Duan
- Zachry Department of Civil Engineering, Texas A&M University, College Station, TX 77843-3136, USA
| | - Bill Batchelor
- Zachry Department of Civil Engineering, Texas A&M University, College Station, TX 77843-3136, USA
| | - Ahmed Abdel-Wahab
- Chemical Engineering Program, Texas A&M University at Qatar, Education City, Doha 23874, Qatar
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Xu M, Wei G, Liu N, Zhou L, Fu C, Chubik M, Gromov A, Han W. Novel fungus-titanate bio-nanocomposites as high performance adsorbents for the efficient removal of radioactive ions from wastewater. NANOSCALE 2014; 6:722-725. [PMID: 24287628 DOI: 10.1039/c3nr03467d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Reclaimable adsorbents have a critical application in the adsorption of radioactive materials. In this study, the novel bio-nanocomposites comprising fungi and titanate nanotubes are successfully synthesized by a simple and low-cost method. Morphological characterizations and composite mechanism analysis confirm that the composites are sufficiently stable to avoid dust pollution resulting from the titanate nanomaterials. Adsorption experiments demonstrate that the bio-nanocomposites are efficient adsorbents with a saturated sorption capacity as high as 120 mg g(-1) (1.75 meq. g(-1)) for Ba(2+) ions. The results suggest that the bio-nanocomposites can be used as promising radioactive adsorbents for removing radioactive ions from water caused by nuclear leakage.
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Affiliation(s)
- Mingze Xu
- College of Physics, Jilin University, Changchun 130012, P.R. China.
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Fan D, Anitori RP, Tebo BM, Tratnyek PG, Lezama Pacheco JS, Kukkadapu RK, Engelhard MH, Bowden ME, Kovarik L, Arey BW. Reductive sequestration of pertechnetate (⁹⁹TcO₄⁻) by nano zerovalent iron (nZVI) transformed by abiotic sulfide. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:5302-5310. [PMID: 23611018 DOI: 10.1021/es304829z] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Under anoxic conditions, soluble pertechnetate (⁹⁹TcO₄⁻) can be reduced to less soluble TcO₂·nH₂O, but the oxide is highly susceptible to reoxidation. Here we investigate an alternative strategy for remediation of Tc-contaminated groundwater whereby sequestration as Tc sulfide is favored by sulfidic conditions stimulated by nano zerovalent iron (nZVI). nZVI was pre-exposed to increasing concentrations of sulfide in simulated Hanford groundwater for 24 h to mimic the onset of aquifer biotic sulfate reduction. Solid-phase characterizations of the sulfidated nZVI confirmed the formation of nanocrystalline FeS phases, but higher S/Fe ratios (>0.112) did not result in the formation of significantly more FeS. The kinetics of Tc sequestration by these materials showed faster Tc removal rates with increasing S/Fe between 0 and 0.056, but decreasing Tc removal rates with S/Fe > 0.224. The more favorable Tc removal kinetics at low S/Fe could be due to a higher affinity of TcO₄⁻ for FeS than iron oxides, and electron microscopy confirmed that the majority of the Tc was associated with FeS phases. The inhibition of Tc removal at high S/Fe appears to have been caused by excess HS(-). X-ray absorption spectroscopy revealed that as S/Fe increased, the pathway for Tc(IV) formation shifted from TcO₂·nH2₂ to Tc sulfide phases. The most substantial change of Tc speciation occurred at low S/Fe, coinciding with the rapid increase in Tc removal rate. This agreement further confirms the importance of FeS in Tc sequestration.
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Affiliation(s)
- Dimin Fan
- Division of Environmental and Biomolecular Systems, Oregon Health & Science University, 20000 NW Walker Road, Beaverton, Oregon 97006, United States
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O’Loughlin EJ, Boyanov MI, Antonopoulos DA, Kemner KM. Redox Processes Affecting the Speciation of Technetium, Uranium, Neptunium, and Plutonium in Aquatic and Terrestrial Environments. ACS SYMPOSIUM SERIES 2011. [DOI: 10.1021/bk-2011-1071.ch022] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Edward J. O’Loughlin
- Biosciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
- The Institute for Genomics and Systems Biology, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
| | - Maxim I. Boyanov
- Biosciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
- The Institute for Genomics and Systems Biology, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
| | - Dionysios A. Antonopoulos
- Biosciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
- The Institute for Genomics and Systems Biology, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
| | - Kenneth M. Kemner
- Biosciences Division, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
- The Institute for Genomics and Systems Biology, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439
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Korbekandi H, Iravani S, Abbasi S. Production of nanoparticles using organisms. Crit Rev Biotechnol 2009; 29:279-306. [DOI: 10.3109/07388550903062462] [Citation(s) in RCA: 200] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kim YY, Hore K, Hall SR, Walsh D. Controlled nanoparticle formation by enzymatic deshelling of biopolymer-stabilized nanosuspensions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2009; 5:913-918. [PMID: 19204976 DOI: 10.1002/smll.200801324] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
- Yi-Yeoun Kim
- School of Chemistry, University of Bristol Cantocks Close, Bristol, UK
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Affiliation(s)
- David Rickard
- School of Earth, Ocean and Planetary Sciences, Cardiff University, Cardiff CF103YE, Wales, UK.
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Wigginton NS, Haus KL, Hochella Jr MF. Aquatic environmental nanoparticles. ACTA ACUST UNITED AC 2007; 9:1306-16. [DOI: 10.1039/b712709j] [Citation(s) in RCA: 229] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mandal D, Bolander ME, Mukhopadhyay D, Sarkar G, Mukherjee P. The use of microorganisms for the formation of metal nanoparticles and their application. Appl Microbiol Biotechnol 2005; 69:485-92. [PMID: 16317546 DOI: 10.1007/s00253-005-0179-3] [Citation(s) in RCA: 452] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2005] [Revised: 08/02/2005] [Accepted: 09/02/2005] [Indexed: 10/25/2022]
Abstract
Nanomaterials are at the leading edge of the rapidly developing field of nanotechnology. The development of reliable experimental protocols for the synthesis of nanomaterials over a range of chemical compositions, sizes, and high monodispersity is one of the challenging issues in current nanotechnology. In the context of the current drive to develop green technologies in material synthesis, this aspect of nanotechnology is of considerable importance. Biological systems, masters of ambient condition chemistry, synthesize inorganic materials that are hierarchically organized from the nano- to the macroscale. Recent studies on the use of microorganisms in the synthesis of nanoparticles are a relatively new and exciting area of research with considerable potential for development. This review describes a brief overview of the current research worldwide on the use of microorganisms in the biosynthesis of metal nanoparticles and their applications.
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Affiliation(s)
- Deendayal Mandal
- Department of Orthopedics, Mayo Clinic and Foundation, 200 First Street SW, Medical Sciences Building 3-103, Rochester, MN 55905, USA.
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Ma Y, Manolache S, Denes FS, Thamm DH, Kurzman ID, Vail DM. Plasma synthesis of carbon magnetic nanoparticles and immobilization of doxorubicin for targeted drug delivery. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2005; 15:1033-49. [PMID: 15461188 DOI: 10.1163/1568562041526441] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Using dense medium plasma technology, carbon magnetic nanoparticles (CMNP) were synthesized at room temperature and atmospheric pressure. Based on results from X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy and scanning electron microscopy, we conclude that these nanoparticles are composed of spherical particles, 40-50 nm in diameter, with iron/iron oxide particles dispersed in a carbon-based host-structure. Thermal gravimetry/differential thermal gravimetry analysis shows these nanoparticles are stable to temperatures as high as 600 degrees C. The synthesized CMNP were treated by argon-plasma, aminated with ethylene diamine and subsequently activated by generating aldehyde groups on them. Free doxorubicin (DOX) molecules were then immobilized onto the surfaces of activated CMNP particles to form CMNP-DOX conjugates. The corresponding loading efficiency was determined. The in vitro antiproliferative activity of immobilized doxorubicin in the conjugates was demonstrated in tumor cell cytotoxicity assays. It is suggested that this CMNP-DOX system can be used for targeted drug-delivery systems.
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Affiliation(s)
- Yonghui Ma
- Center for Plasma-Aided Manufacturing, University of Wisconsin, Madison, WI 53706, USA
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Watson JHP, Ellwood DC, Cressey BA, Lidzey RA. The Adsorption of Heavy Metals by Tochilinite, an Iron Sulfide Material Produced by Chemical Precipitation: Analysis Using a Simple Theory of Chemisorption. SEP SCI TECHNOL 2005. [DOI: 10.1081/ss-200051963] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Technetium reduction in sediments of a shallow aquifer exhibiting dissimilatory iron reduction potential. FEMS Microbiol Ecol 2004; 49:151-62. [DOI: 10.1016/j.femsec.2003.08.016] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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The removal of the pertechnetate ion and actinides from radioactive waste streams at Hanford, Washington, USA and Sellafield, Cumbria, UK: the role of iron-sulfide-containing adsorbent materials. NUCLEAR ENGINEERING AND DESIGN 2003. [DOI: 10.1016/s0029-5493(03)00194-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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