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Chen Y, Shi Y, Wan D, Liu Y, Wang Y, Han X, Liu M. Degradation of bisphenol A by iron-carbon composites derived from spent bleaching earth. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128376] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Reginatto C, Cecchin I, Salvagni Heineck K, Thomé A, Reddy KR. Influence of nanoscale zero-valent iron on hydraulic conductivity of a residual clayey soil and modeling of the filtration parameter. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:9288-9296. [PMID: 31916159 DOI: 10.1007/s11356-019-07197-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 11/27/2019] [Indexed: 06/10/2023]
Abstract
Contaminated clay soils pose problems to public health and the environment in several parts of the world. Very little is known about the transport of decontaminating agents used in remediation process under natural, undisturbed conditions. Nanomaterials, especially those made of nanoscale zero-valent iron (nZVI), have been most frequently used for remediation of contaminated soils because of their higher reactivity, lower toxicity, and lower cost than other metallic nanoparticles. Even though the nanoparticle size is smaller than soil pores, clogging may occur over time due to agglomeration of nanoparticles, which could reduce the soil's natural permeability and thereby cause filtration of the nanoparticles. The use of a stabilizer in the nanoparticles can modify the reactivity but improves their mobility in the soil system. Thus, the objective of this work was to evaluate the hydraulic conductivity of residual clay soil under the injection of different types and concentrations of nZVI with and without surfactant stabilizer (NANOFER 25, NANOFER 25S, and NANOFER STAR in powder at 1 g/L, 4 g/L, 7 g/L, and 10 g/L concentrations), and to model transport of these nZVI suspensions in this soil system. Undisturbed cylindrical soil samples collected from the field were used, and hydraulic conductivity tests were performed using a column apparatus. The results showed that the presence of the stabilizer in the nZVI influenced the nanoparticles' mobility. The nZVI concentrations of 1 and 4 g/L did not affect the natural soil hydraulic conductivity. However, higher concentrations reduced the hydraulic conductivity value, which retarded the migration of nZVI as reflected in the value of filtration parameter.
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Affiliation(s)
- Cleomar Reginatto
- Graduate Program of Civil and Environmental Engineering, University of Passo Fundo, BR 285, km 292, Campus I, Passo Fundo, RS, 99001-970, Brazil.
| | - Iziquiel Cecchin
- Environmental Engineering Undergraduate Course, University of Passo Fundo, BR 285, km 292, Campus I, Passo Fundo, RS, 99001-970, Brazil
| | - Karla Salvagni Heineck
- Graduate Program of Civil Engineering, Federal University of Rio Grande do Sul, Av. Osvaldo Aranha, 99., Porto Alegre, RS, 90035-190, Brazil
| | - Antonio Thomé
- Graduate Program of Civil and Environmental Engineering, University of Passo Fundo, BR 285, km 292, Campus I, Passo Fundo, RS, 99001-970, Brazil
| | - Krishna R Reddy
- Department of Civil and Materials Engineering, University of Illinois at Chicago, 842 West Taylor Street, Chicago, IL, 60607, USA
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Han Y, Qi M, Zhang L, Sang Y, Liu M, Zhao T, Niu J, Zhang S. Degradation of nitrobenzene by synchronistic oxidation and reduction in an internal circulation microelectrolysis reactor. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:448-456. [PMID: 30453238 DOI: 10.1016/j.jhazmat.2018.11.036] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 10/05/2018] [Accepted: 11/09/2018] [Indexed: 06/09/2023]
Abstract
The degradation of nitrobenzene by synchronistic oxidation and reduction was investigated using an internal circulation microelectrolysis (ICE) reactor with an active volume of 0.018 m3. Compared with a conventional fixed bed reactor with and without aeration, the ICE reactor exhibited a markedly higher nitrobenzene degradation efficiency. The effects of various operational parameters such as reaction time, aeration rate, initial nitrobenzene concentration, initial pH, and a volume ratio of iron and carbon (Fe/C) were also investigated. The optimal operating conditions (reaction time = 60 min, aeration rate = 5 × 10-4 m3/s, initial concentration of nitrobenzene = 300 mg/L, pH = 3.0, Fe/C = 1:1) gave removal efficiencies of nitrobenzene and chemical oxygen demand of 98.2% and 58%, respectively. The biodegradability index of the treated nitrobenzene solution was 0.45, which is 22 times that of the original solution. The reaction intermediates were identified through high-performance liquid chromatography, ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy, gas chromatography-mass spectrometry, and ion chromatography. The primary intermediates were determined to be aniline, phenol, and carboxylic acids, indicating that nitrobenzene was synchronously oxidized and reduced in the ICE reactor. Based on the identified intermediates, a possible pathway for nitrobenzene degradation in the ICE reactor is proposed.
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Affiliation(s)
- Yanhe Han
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, 19 Qingyuan North Road, Daxing District, Beijing 102617, PR China.
| | - Mengmeng Qi
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, 19 Qingyuan North Road, Daxing District, Beijing 102617, PR China
| | - Lei Zhang
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, 19 Qingyuan North Road, Daxing District, Beijing 102617, PR China
| | - Yimin Sang
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, 19 Qingyuan North Road, Daxing District, Beijing 102617, PR China
| | - Meili Liu
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, 19 Qingyuan North Road, Daxing District, Beijing 102617, PR China
| | - Tingting Zhao
- Department of Environmental Engineering, Beijing Institute of Petrochemical Technology, 19 Qingyuan North Road, Daxing District, Beijing 102617, PR China
| | - Junfeng Niu
- Research Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan, Guangdong 523808, PR China.
| | - Shanqing Zhang
- Griffith School of Environment, Gold Coast Campus, Griffith University, QLD 4222, Australia
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Ren L, Dong J, Chi Z, Li Y, Zhao Y, E J. Rheology modification of reduced graphene oxide based nanoscale zero valent iron (nZVI/rGO) using xanthan gum (XG): Stability and transport in saturated porous media. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.11.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen S, Belver C, Li H, Ren LY, Liu YD, Bedia J, Gao GL, Guan J. Effects of pH value and calcium hardness on the removal of 1,1,1-trichloroethane by immobilized nanoscale zero-valent iron on silica based supports. CHEMOSPHERE 2018; 211:102-111. [PMID: 30071421 DOI: 10.1016/j.chemosphere.2018.07.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 07/19/2018] [Accepted: 07/22/2018] [Indexed: 06/08/2023]
Abstract
Immobilizing nanoscale zero-valent iron (NZVI) particles on silica-based supports is an effective way to overcome the NZVI aggregation. The pH value and calcium hardness can change the aggregation kinetics and alter the stability of the suspensions of NZVI-silica based materials, thus change the reactivity of these NZVI-silica based materials to remove chlorinated aliphatic hydrocarbons (CAHs). The removal of CAHs by these NZVI-silica based materials includes adsorption by silica based supports and degradation by NZVI particles. Using 1,1,1-TCA and mesoporous hydrated silica (mHS) as model chlorinated aliphatic hydrocarbon (CAH) and silica based support, the effects of pH value and Ca2+ concentration on both the adsorption and adsorption-degradation processes of CAHs by NZVI-silica based materials were studied. The structural and textural features, suspension stability, particle size distribution, and Zeta potential of the materials under various conditions were characterized by different techniques. Both decreasing initial pH value and increasing Ca2+ concentration can reduce the Zeta potential of mHS and lead to the aggregation of mHS particles, thus inhibiting the removal of 1,1,1-TCA via adsorption by mHS through decreasing the number of sites for adsorption. Low initial pH value can accelerate the corrosion of NZVI core and remove the passivation layer, thus promoting the removal of 1,1,1-TCA via adsorption-degradation by NZVI@mHS. Ca2+ can decrease the sites for adsorption and form precipitates which can block mesoporous channels, thus hinder the 1,1,1-TCA removal via adsorption-degradation by NZVI@mHS.
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Affiliation(s)
- Shuai Chen
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Carolina Belver
- Seccion de Ingenieria Quimica, Facultad de Ciencias, Universidad Autonoma de Madrid, Campus Cantoblanco, Madrid E, 28049, Spain
| | - Hui Li
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, PR China.
| | - Lu Yao Ren
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Yong Di Liu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Jorge Bedia
- Seccion de Ingenieria Quimica, Facultad de Ciencias, Universidad Autonoma de Madrid, Campus Cantoblanco, Madrid E, 28049, Spain
| | - Gui Lan Gao
- School of Environmental and Materials Engineering, Shanghai Polytechnic University, Shanghai, 201209, PR China
| | - Jie Guan
- School of Environmental and Materials Engineering, Shanghai Polytechnic University, Shanghai, 201209, PR China
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Lu H, Wen C, Gao S, Dong Y, Zhang M, Li B, Hu W, Dong J. Incorporation of nanoscale zero-valent iron particles in monodisperse mesoporous silica nanospheres: Characterization, reactivity, transport in porous media. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.05.038] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Li J, Zhang X, Sun Y, Liang L, Pan B, Zhang W, Guan X. Advances in Sulfidation of Zerovalent Iron for Water Decontamination. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:13533-13544. [PMID: 29135239 DOI: 10.1021/acs.est.7b02695] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Sulfidation has gained increasing interest in recent years for improving the sequestration of contaminants by zerovalent iron (ZVI). In view of the bright prospects of the sulfidated ZVI (S-ZVI), this review comprehensively summarized the latest developments in sulfidation of ZVI, particularly that of nanoscale ZVI (S-nZVI). The milestones in development of S-ZVI technology including its background, enlightenment, synthesis, characterization, water remediation and treatment, etc., are summarized. Under most circumstances, sulfidation can enhance the sequestration of various organic compounds and metal(loid)s by ZVI to various extents. In particular, the reactivity of S-ZVI toward contaminants is strongly dependent on S/Fe molar ratio, sulfidation method, and solution chemistry. Additionally, sulfidation can improve the selectivity of ZVI toward targeted contaminant over water under anaerobic conditions. The mechanisms of sulfidation-induced improvement in contaminants sequestration by ZVI are also summarized. Finally, this review identifies the current knowledge gaps and future research needs of S-ZVI for environmental application.
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Affiliation(s)
- Jinxiang Li
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092, P.R. China
| | - Xueying Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092, P.R. China
| | - Yuankui Sun
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092, P.R. China
| | - Liping Liang
- College of Life Science, Shaoxing University , Shaoxing 312000, P.R. China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environment, Nanjing University , Nanjing 210023, Jiangsu P.R. China
| | - Weiming Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, School of Environment, Nanjing University , Nanjing 210023, Jiangsu P.R. China
| | - Xiaohong Guan
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, P. R. China
- Shanghai Institute of Pollution Control and Ecological Security , Shanghai 200092, P.R. China
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Khan A, Prabhu SM, Park J, Lee W, Chon CM, Ahn JS, Lee G. Azo dye decolorization by ZVI under circum-neutral pH conditions and the characterization of ZVI corrosion products. J IND ENG CHEM 2017. [DOI: 10.1016/j.jiec.2016.11.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Enhancement of Degradation and Dechlorination of Trichloroethylene via Supporting Palladium/Iron Bimetallic Nanoparticles onto Mesoporous Silica. Catalysts 2016. [DOI: 10.3390/catal6070105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Trujillo-Reyes J, Peralta-Videa JR, Gardea-Torresdey JL. Supported and unsupported nanomaterials for water and soil remediation: are they a useful solution for worldwide pollution? JOURNAL OF HAZARDOUS MATERIALS 2014; 280:487-503. [PMID: 25203809 DOI: 10.1016/j.jhazmat.2014.08.029] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 07/25/2014] [Accepted: 08/07/2014] [Indexed: 06/03/2023]
Abstract
Remediation technologies for wastes generated by industrial processes include coagulation, reverse osmosis, electrochemistry, photoelectrochemistry, advanced oxidation processes, and biological methods, among others. Adsorption onto activated carbon, sewage sludge, zeolites, chitosan, silica, and agricultural wastes has shown potential for pollutants' removal from aqueous media. Recently, nanoscale systems [nanoparticles (NPs) supported on different inorganic adsorbents] have shown additional benefits for the removal/degradation of several contaminants. According to the literature, NPs enhance the adsorption capacity of adsorbent materials and facilitate degradation of pollutants through redox reactions. In this review we analyzed relevant literature from 2011 to 2013, dealing with water and soil remediation by nanomaterials (NMs), either unsupported or supported upon inorganic adsorbents. Despite the outstanding reported results for some NMs, the analysis of the literature makes clear the necessity of more studies. There is lack of information about NMs regeneration and reusability, their large-scale application, and their efficiency in actual industrial wastewaters and contaminated soils. Additionally, little is known about NMs' life cycle, release of metal ions, disposal of pollutant loaded NMs, and their impacts on different ecosystems.
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Affiliation(s)
- J Trujillo-Reyes
- Chemistry Department, The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX 79968, USA
| | - J R Peralta-Videa
- Chemistry Department, The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX 79968, USA; Environmental Science and Engineering PhD Program, The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX 79968, USA; University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX 79968, USA
| | - J L Gardea-Torresdey
- Chemistry Department, The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX 79968, USA; Environmental Science and Engineering PhD Program, The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX 79968, USA; University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West Univ. Ave., El Paso, TX 79968, USA.
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Degradation of nitrobenzene in groundwater by nanoscale zero-valent iron particles incorporated inside the channels of SBA-15 rods. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2013.09.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Fu F, Dionysiou DD, Liu H. The use of zero-valent iron for groundwater remediation and wastewater treatment: a review. JOURNAL OF HAZARDOUS MATERIALS 2014; 267:194-205. [PMID: 24457611 DOI: 10.1016/j.jhazmat.2013.12.062] [Citation(s) in RCA: 696] [Impact Index Per Article: 69.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 12/23/2013] [Accepted: 12/27/2013] [Indexed: 05/20/2023]
Abstract
Recent industrial and urban activities have led to elevated concentrations of a wide range of contaminants in groundwater and wastewater, which affect the health of millions of people worldwide. In recent years, the use of zero-valent iron (ZVI) for the treatment of toxic contaminants in groundwater and wastewater has received wide attention and encouraging treatment efficiencies have been documented. This paper gives an overview of the recent advances of ZVI and progress obtained during the groundwater remediation and wastewater treatment utilizing ZVI (including nanoscale zero-valent iron (nZVI)) for the removal of: (a) chlorinated organic compounds, (b) nitroaromatic compounds, (c) arsenic, (d) heavy metals, (e) nitrate, (f) dyes, and (g) phenol. Reaction mechanisms and removal efficiencies were studied and evaluated. It was found that ZVI materials with wide availability have appreciable removal efficiency for several types of contaminants. Concerning ZVI for future research, some suggestions are proposed and conclusions have been drawn.
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Affiliation(s)
- Fenglian Fu
- School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China.
| | - Dionysios D Dionysiou
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, OH 45221-0012, USA
| | - Hong Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 401122, PR China
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Sun X, Yan Y, Li J, Han W, Wang L. SBA-15-incorporated nanoscale zero-valent iron particles for chromium(VI) removal from groundwater: mechanism, effect of pH, humic acid and sustained reactivity. JOURNAL OF HAZARDOUS MATERIALS 2014; 266:26-33. [PMID: 24374562 DOI: 10.1016/j.jhazmat.2013.12.001] [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: 08/26/2013] [Revised: 10/18/2013] [Accepted: 12/01/2013] [Indexed: 06/03/2023]
Abstract
Nanoscale zero-valent iron particles (NZVIs) were incorporated inside the channels of SBA-15 rods by a "two solvents" reduction technique and used to remove Cr(VI) from groundwater. The resulting NZVIs/SBA-15 composites before and after reaction were characterized by N2 adsorption/desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Results helped to propose the mechanism of Cr(VI) removal by NZVIs/SBA-15, where Cr(VI) in aqueous was firstly impregnated into the channels of the silica, then adsorbed on the surfaces of the incorporated NZVIs and reduced to Cr(III) directly in the inner pores of the silica. Corrosion products included Fe2O3, FeO(OH), Fe3O4 and Cr2FeO4. Batch experiments revealed that Cr(VI) removal decreased from 99.7% to 92.8% when the initial solution pH increased from 5.5 to 9.0, accompanied by the decrease of the kobs from 0.600 to 0.024 min(-1). Humic acid (HA) had a little effect on the removal efficiency of Cr(VI) by NZVIs/SBA-15 but could decrease the reduction rate. The stable reduction of NZVIs/SBA-15 was observed within six cycles. NZVIs/SBA-15 composites offer a promising alternative material to remove heavy metals from groundwater.
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Affiliation(s)
- Xia Sun
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China; School of Chemistry and Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, PR China.
| | - Yubo Yan
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Jiansheng Li
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China.
| | - Weiqing Han
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Lianjun Wang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China.
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