1
|
Cai JY, Liu S, Chen S, Yu YL, Wang JH. One-Pot Pretreatment Coupled to Microplasma Optical Emission Spectrometry for Field and Sensitive Determination of Inorganic Mercury and Methylmercury in Fish. Anal Chem 2023. [PMID: 37354088 DOI: 10.1021/acs.analchem.3c00615] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2023]
Abstract
Field and sensitive analysis of mercury species in seafood is helpful to assess the risk of human exposure to mercury, but the cumbersome pretreatment process is time-consuming and laborious. Herein, a simple one-pot pretreatment system is designed for extraction, separation, and enrichment of inorganic mercury (Hg(II)) and methylmercury (MeHg) in fish, and coupled to dielectric barrier discharge (DBD) microplasma optical emission spectrometry (OES). Both Hg(II) and MeHg species in fish can be effectively extracted by tetramethylammonium hydroxide under ultrasound, then separated from the fish matrix by vapor generation and photochemical vapor generation, and finally enriched on the activated carbon electrode tips. Mercury trapped on the activated carbon electrode tips can be rapidly released to produce OES under the DBD microplasma excitation for quantitative analysis. The pretreatment and analysis of a batch of 12 samples are completed within 50 min, and the extraction efficiency of total mercury is up to 90% for 100 mg of freeze-dried fish or 86% for 1 g of fresh fish. Under the optimized conditions, the detection limits are 2 μg kg-1 for Hg(II) and 1.2 μg kg-1 for MeHg in freeze-dried fish, and precisions are 3.2% for Hg(II) and 3.9% for MeHg. The present method is applied to the analysis of the certified reference material and real marine fishes, giving rise to spiked recoveries of 95-103%. The present system hardly leads to MeHg and Hg(II) transforming into each other during extraction, providing a simple, convenient, and low-cost analytical tool to evaluate the risk of mercury species in fish.
Collapse
Affiliation(s)
- Ji-Ying Cai
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Shuang Liu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Shuai Chen
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Yong-Liang Yu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Box 332, Shenyang 110819, China
| |
Collapse
|
2
|
Feng Y, Sun M, Sun M, Feng J, Sun H, Feng J. Extraction performance-structure relationship of polyamidoamine dendrimers on silica for online solid-phase extraction of organic pollutants. J Chromatogr A 2022; 1673:463132. [DOI: 10.1016/j.chroma.2022.463132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/02/2022] [Accepted: 05/07/2022] [Indexed: 11/26/2022]
|
3
|
Nayl AA, Abd-Elhamid AI, Aly AA, Bräse S. Recent progress in the applications of silica-based nanoparticles. RSC Adv 2022; 12:13706-13726. [PMID: 35530394 PMCID: PMC9073631 DOI: 10.1039/d2ra01587k] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/20/2022] [Indexed: 12/12/2022] Open
Abstract
Functionalized silica nanoparticles (SiO2 NPs) have attracted great attention due to their promising distinctive, versatile, and privileged physiochemical characteristics. These enhanced properties make this type of functionalized nanoparticles particularly appropriate for different applications. A lack of reviews that summarizes the fabrications of such nanomaterials and their different applications in the same work has been observed in the literature. Therefore, in this work, we will discuss the recent signs of progress in the fabrication of functionalized silica nanoparticles and their attractive applications that have been extensively highlighted (advanced catalysis, drug-delivery, biomedical applications, environmental remediation applications, and wastewater treatment). These applications have been selected for demonstrating the role of the surface modification step on the various properties of the silica surface. In addition, the current challenges in the applications of functionalized silica nanoparticles and corresponding strategies to discuss these issues and future perspectives for additional improvement have been addressed.
Collapse
Affiliation(s)
- A A Nayl
- Department of Chemistry, College of Science, Jouf University Sakaka Aljouf 72341 Saudi Arabia
| | - A I Abd-Elhamid
- Composites and Nanostructured Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City) New Borg Al-Arab Alexandria 21934 Egypt
| | - Ashraf A Aly
- Chemistry Department, Faculty of Science, Organic Division, Minia University 61519-El-Minia Egypt
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC), Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76133 Karlsruhe Germany
- Institute of Biological and Chemical Systems - Functional Molecular Systems (IBCS-FMS), Director Hermann-von-Helmholtz-Platz 1 Eggenstein-Leopoldshafen D-76344 Germany
| |
Collapse
|
4
|
Fatimah I, Fadillah G, Purwiandono G, Sahroni I, Purwaningsih D, Riantana H, Avif AN, Sagadevan S. Magnetic-silica nanocomposites and the functionalized forms for environment and medical applications: A review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109213] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
5
|
Thiol-Functionalization Carbonaceous Adsorbents for the Removal of Methyl-Mercury from Water in the ppb Levels. WATER 2021. [DOI: 10.3390/w14010049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Mercury is a highly toxic pollutant of major public health concern, and human exposure is mainly related to the aqueous phase, where its dominant form is methyl-mercury (MeHg). In the current work, two carbon-based adsorbents, i.e., a commercial activated carbon and a sunflower seeds’ biochar, were modified by the introduction of thiol-active groups onto their surfaces for the MeHg removal from natural-like water in ppb concentration levels. The examined thiol-functionalization was a two-step process, since the raw materials were initially treated with nitric acid (6 N), which is a reagent that favors the formation of surface carboxyl groups, and subsequently by the thiol surface bonding groups through an esterification reaction in methanol matrix. The adsorbents’ capacity was evaluated toward the Hgtotal legislative regulation limit (1 μg/L) in drinking water (denoted as Q1). The respective isothermal adsorption results revealed an increased affinity between MeHg and thiol-functionalized materials, where the commercial carbon showed slightly higher capacity (0.116 μg Hg/mg) compared with the biochar (0.108 μg Hg/mg). This variation can be attributed to the respective higher surface area, resulting, also, to higher thiol groups loading. Regarding the proposed mechanism, it was proved that the S-Hg bond was formed, based on the characterization of the best performed saturated adsorbent.
Collapse
|
6
|
Liosis C, Papadopoulou A, Karvelas E, Karakasidis TE, Sarris IE. Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7500. [PMID: 34947096 PMCID: PMC8707578 DOI: 10.3390/ma14247500] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/22/2021] [Accepted: 12/01/2021] [Indexed: 12/12/2022]
Abstract
Research on contamination of groundwater and drinking water is of major importance. Due to the rapid and significant progress in the last decade in nanotechnology and its potential applications to water purification, such as adsorption of heavy metal ion from contaminated water, a wide number of articles have been published. An evaluating frame of the main findings of recent research on heavy metal removal using magnetic nanoparticles, with emphasis on water quality and method applicability, is presented. A large number of articles have been studied with a focus on the synthesis and characterization procedures for bare and modified magnetic nanoparticles as well as on their adsorption capacity and the corresponding desorption process of the methods are presented. The present review analysis shows that the experimental procedures demonstrate high adsorption capacity for pollutants from aquatic solutions. Moreover, reuse of the employed nanoparticles up to five times leads to an efficiency up to 90%. We must mention also that in some rare occasions, nanoparticles have been reused up to 22 times.
Collapse
Affiliation(s)
- Christos Liosis
- Department of Civil Engineering, University of Thessaly, 38334 Volos, Greece;
| | - Athina Papadopoulou
- Inorganic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, 15771 Athens, Greece;
| | - Evangelos Karvelas
- Department of Mechanical Engineering, University of West Attica, 12243 Athens, Greece; (E.K.); (I.E.S.)
- Condensed Matter Physics Lab, Department of Physics, University of Thessaly, 35100 Lamia, Greece
| | - Theodoros E. Karakasidis
- Condensed Matter Physics Lab, Department of Physics, University of Thessaly, 35100 Lamia, Greece
| | - Ioannis E. Sarris
- Department of Mechanical Engineering, University of West Attica, 12243 Athens, Greece; (E.K.); (I.E.S.)
| |
Collapse
|
7
|
Luo Y, Wang J, Cui X, Fu Y, Li GL, Wang W. Surface‐modified
mesoporous silica nanorods for the
highly aging
resistance rubber through controlled release of antioxidant. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5348] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yang Luo
- State Key Laboratory of Organic‐Inorganic Composites and Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials Beijing University of Chemical Technology Beijing China
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering Chinese Academy of Sciences Beijing China
| | - Jun‐Peng Wang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering Chinese Academy of Sciences Beijing China
| | - Xurui Cui
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering Chinese Academy of Sciences Beijing China
| | - Ye Fu
- Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, College of Chemistry and Materials Engineering Beijing Technology and Business University Beijing China
| | - Guo Liang Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering Chinese Academy of Sciences Beijing China
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
| | - Wencai Wang
- State Key Laboratory of Organic‐Inorganic Composites and Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials Beijing University of Chemical Technology Beijing China
| |
Collapse
|
8
|
Zhao X, Li J, Mu S, He W, Zhang D, Wu X, Wang C, Zeng H. Efficient removal of mercury ions with MoS 2-nanosheet-decorated PVDF composite adsorption membrane. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115705. [PMID: 33035876 DOI: 10.1016/j.envpol.2020.115705] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 09/20/2020] [Accepted: 09/20/2020] [Indexed: 06/11/2023]
Abstract
The exploitation of a new adsorbent with a high adsorption performance and recyclability is of great practical significance for the treatment of wastewater containing mercury ions. In this study, a novel membrane adsorbent was fabricated by blending MoS2 nanosheets into a PVDF polymer matrix (P-PVDF/MoS2) followed by non-solvent-induced phase conversion. This material was able to bind mercury ions and was not affected by the solution ionic strength, co-existing anions, or interfering heavy metal ions. The optimal pH range for mercury ion elimination was 4.5-6.0, and P-PVDF/MoS2 exhibited a maximum adsorption capacity of 578 mg g-1. The pseudo-second-order adsorption kinetics and Langmuir isotherm models best described the adsorption process. The adsorption mechanism was mainly monolayer chemisorption, for which the S groups were the major active sites. Furthermore, the membrane could be removed from the aqueous solution easily using tweezers, and the removal efficiency of mercury ions remained over 90% after ten cycles. This study suggests that the inexpensive and recyclable P-PVDF/MoS2 membranes can be used for the efficient removal of heavy metal ions from wastewater at a large scale.
Collapse
Affiliation(s)
- Xinghua Zhao
- Service Center of Public Technology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, PR China
| | - Jing Li
- Department of Chemistry and Applied Chemistry, Changji University, Changji, 831100, Xinjiang, PR China
| | - Shuyong Mu
- Service Center of Public Technology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, PR China
| | - Wei He
- Department of Chemistry and Applied Chemistry, Changji University, Changji, 831100, Xinjiang, PR China
| | - Dan Zhang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian, 710021, PR China
| | - Xia Wu
- Department of Chemistry and Applied Chemistry, Changji University, Changji, 831100, Xinjiang, PR China
| | - Chuanyi Wang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xian, 710021, PR China
| | - Hehua Zeng
- Department of Chemistry and Applied Chemistry, Changji University, Changji, 831100, Xinjiang, PR China.
| |
Collapse
|
9
|
Li L, Han L, Liu X, Xu J, Kan C. Thiol functionalized polymer submicron particles prepared by soap‐free emulsion polymerization and their adsorption of lead ions in water. J Appl Polym Sci 2020. [DOI: 10.1002/app.49312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lingxiao Li
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of EducationTsinghua University Beijing China
| | - Lu Han
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of EducationTsinghua University Beijing China
| | - Xueyan Liu
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of EducationTsinghua University Beijing China
- The State Key Lab of Chemical Engineering, Department of Chemical EngineeringTsinghua University Beijing China
| | - Jianhong Xu
- The State Key Lab of Chemical Engineering, Department of Chemical EngineeringTsinghua University Beijing China
| | - Chengyou Kan
- Department of Chemical Engineering and Key Laboratory of Advanced Materials of Ministry of EducationTsinghua University Beijing China
| |
Collapse
|
10
|
Huang L, Shen R, Liu R, Shuai Q. Thiol-functionalized magnetic covalent organic frameworks by a cutting strategy for efficient removal of Hg 2+ from water. JOURNAL OF HAZARDOUS MATERIALS 2020; 392:122320. [PMID: 32097855 DOI: 10.1016/j.jhazmat.2020.122320] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/09/2020] [Accepted: 02/14/2020] [Indexed: 06/10/2023]
Abstract
Covalent organic frameworks (COFs) have attracted tremendous attention due to their excellent performance in wastewater remediation, but their practical application still suffers from various challenges. The development of highly-efficient magnetic COFs along with fast adsorption kinetic and high adsorption capacity is very promising. To achieve the purpose, thiol-functionalized magnetic covalent organic frameworks (M-COF-SH) with abundant accessible chelating sites were designed and synthesized by utilizing disulfide derivative as building blocks and subsequently cutting off the disulfide linkage. After the cutting process, the crystallinity, porosity, superparamagnetism of pristine M-COF are well maintained, and the resultant M-COF-SH turned out to be an effective and selective platform for Hg2+ capture from water. Impressively, the resulting composite exhibited a maximum adsorption capacity of Hg2+ as high as 383 mg g-1. In addition, it also displays a rapid kinetic, where the adsorption equilibrium can be achieved within 10 min. More importantly, there is no significant loss of its adsorption performance even after recycling 5 times. This work not only offers a reliable platform for wastewater remediation but also provides a conceptual guide to prepare functionalized M-COF composites which cannot be obtained through conventional approaches.
Collapse
Affiliation(s)
- Lijin Huang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (Wuhan), No. 388, Lumo Road, Hongshan District, Wuhan, 430074, PR China.
| | - Rujia Shen
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (Wuhan), No. 388, Lumo Road, Hongshan District, Wuhan, 430074, PR China
| | - Ruiqi Liu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (Wuhan), No. 388, Lumo Road, Hongshan District, Wuhan, 430074, PR China
| | - Qin Shuai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences (Wuhan), No. 388, Lumo Road, Hongshan District, Wuhan, 430074, PR China.
| |
Collapse
|
11
|
Hernández S, Islam MS, Thompson S, Kearschner M, Hatakeyama E, Malekzadeh N, Hoelen T, Bhattacharyya D. Thiol-Functionalized Membranes for Mercury Capture from Water. Ind Eng Chem Res 2020; 59:5287-5295. [PMID: 33208988 DOI: 10.1021/acs.iecr.9b03761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pore functionalized membranes with appropriate ion exchange/chelate groups allow toxic metal sorption under convective flow conditions. This study explores the sorption capacity of ionic mercury in a polyvinylidene fluoride-poly(acrylic acid) (PVDFs-PAA) functionalized membrane immobilized with cysteamine (MEA). Two methods of MEA immobilization to the PVDF-PAA membrane have been assessed: (i) ion exchange (IE) and (ii) carbodiimide cross-linker chemistry using 1-(3-dimethylaminopropyl)-3-ethyl carbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS), known as EDC/NHS coupling. The ion exchange method demonstrates that cysteamine (MEA) can be immobilized effectively on PVDF-PAA membranes without covalent attachment. The effectiveness of the MEA immobilized membranes to remove ionic mercury from the water was evaluated by passing a dissolved mercury(II) nitrate solution through the membranes. The sorption capacity of mercury for MEA immobilized membrane prepared by the IE method is 1015 mg/g PAA. On the other hand, the sorption capacity of mercury for MEA immobilized membrane prepared by EDC/NHS chemistry is 2446 mg/g PAA, indicating that membrane functionalization by EDC/NHS coupling enhanced mercury sorption 2.4 times compared to the IE method. The efficiencies of Hg removal are 94.1 ± 1.1 and 99.1 ± 0.1% for the MEA immobilized membranes prepared by IE and EDC/NHS coupling methods, respectively. These results show potential applications of MEA immobilized PVDF-PAA membranes for industrial wastewater treatment specifically from energy and mining industries to remove mercury and other toxic metals.
Collapse
Affiliation(s)
- Sebastián Hernández
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| | - Md Saiful Islam
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| | - Samuel Thompson
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| | - Madison Kearschner
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| | - Evan Hatakeyama
- Chevron Energy Technology Company, Richmond, California 94801, United States
| | - Nga Malekzadeh
- Chevron Energy Technology Company, Richmond, California 94801, United States
| | - Thomas Hoelen
- Chevron Energy Technology Company, Richmond, California 94801, United States
| | - Dibakar Bhattacharyya
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506-0046, United States
| |
Collapse
|
12
|
Liang R, Zou H. Removal of aqueous Hg(ii) by thiol-functionalized nonporous silica microspheres prepared by one-step sol–gel method. RSC Adv 2020; 10:18534-18542. [PMID: 35517226 PMCID: PMC9053728 DOI: 10.1039/d0ra02759f] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 05/08/2020] [Indexed: 12/11/2022] Open
Abstract
The adsorption properties of nonporous SiO2-SH microspheres prepared by a one-step sol–gel method for Hg(ii) in water were studied.
Collapse
Affiliation(s)
- Ruixue Liang
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Hua Zou
- School of Materials Science and Engineering
- University of Shanghai for Science and Technology
- Shanghai 200093
- China
| |
Collapse
|
13
|
Das T, Singha D, Pal A, Nandi M. Mesoporous silica based recyclable probe for colorimetric detection and separation of ppb level Hg 2+ from aqueous medium. Sci Rep 2019; 9:19378. [PMID: 31852977 PMCID: PMC6920407 DOI: 10.1038/s41598-019-55910-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 11/04/2019] [Indexed: 02/01/2023] Open
Abstract
Functional mesoporous silica probes, MCM-TFM and SBA-TFM, have been synthesized with varying pore sizes and having S-donor sites judiciously selected to bind soft metal centers. The soft S-donor centers are contributed by the thiol functional groups that are introduced into the silica matrices by functionalization with tris(4-formylphenyl)amine followed by 2-aminothiophenol. The materials rapidly and selectively detect Hg2+ colorimetrically and the change in color profile can be perceived through bare eyes. The probes can decontaminate the pollutant heavy metal from aqueous medium at ppb level and the materials are recyclable and reusable for several separation cycles.
Collapse
Affiliation(s)
- Trisha Das
- Integrated Science Education and Research Centre, Siksha Bhavana, Visva-Bharati, Santiniketan, 731235, India
| | - Debdas Singha
- Integrated Science Education and Research Centre, Siksha Bhavana, Visva-Bharati, Santiniketan, 731235, India
| | - Ananya Pal
- Integrated Science Education and Research Centre, Siksha Bhavana, Visva-Bharati, Santiniketan, 731235, India
| | - Mahasweta Nandi
- Integrated Science Education and Research Centre, Siksha Bhavana, Visva-Bharati, Santiniketan, 731235, India.
| |
Collapse
|
14
|
Velempini T, Pillay K, Mbianda XY, Arotiba OA. Carboxymethyl cellulose thiol-imprinted polymers: Synthesis, characterization and selective Hg(II) adsorption. J Environ Sci (China) 2019; 79:280-296. [PMID: 30784452 DOI: 10.1016/j.jes.2018.11.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 11/17/2018] [Accepted: 11/29/2018] [Indexed: 05/19/2023]
Abstract
Sulfur containing ion imprinted polymers (S-IIPs) were applied for the uptake of Hg(II) from aqueous solution. Cysteamine which was used as the ligand for Hg(II) complexation, was grafted along the epichlorohydrin crosslinked carboxylated carboxymethyl cellulose polymer chain through an amide reaction. The adsorption ability of S-IIPs towards Hg(II) was investigated by kinetic and isotherm models, which, corresponding, showed that the adsorption process followed a pseudo-second-order, fitted well with the Langmuir isotherm with a maximum adsorption capacity of 80 mg/g. Moreover, thermodynamic studies indicated an endothermic and spontaneous reaction with the tendency of an enhanced randomness at the surface of the S-IIPs with temperature increases. S-IIPs indicated a high degree of selectivity towards Hg(II) in the presence of Cu2+, Zn2+, Co2+, Pb2+ and Cd2+. Furthermore, the efficiency of S-IIPs was also evaluated against real samples showing 86.78%, 91.88%, and 99.10% recovery for Hg(II) wastewater, ground water and tap water, respectively. In this study, the adsorbent was successfully regenerated for five cycles, which allows for their reuse without significant loss of initial adsorption capability.
Collapse
Affiliation(s)
- Tarisai Velempini
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa
| | - Kriveshini Pillay
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Centre for Nanomaterials, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Department of Science and Technology/National Research Foundation Centre of Excellence in Strong Materials, University of the Witwatersrand, Johannesburg 2050, South Africa.
| | - Xavier Y Mbianda
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Centre for Nanomaterials, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Department of Science and Technology/National Research Foundation Centre of Excellence in Strong Materials, University of the Witwatersrand, Johannesburg 2050, South Africa
| | - Omotayo A Arotiba
- Department of Applied Chemistry, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa; Centre for Nanomaterials, University of Johannesburg, Doornfontein Campus, Johannesburg 2028, South Africa
| |
Collapse
|
15
|
Silver nanoparticles decorated on thiol-modified magnetite nanoparticles (Fe3O4/SiO2-Pr-S-Ag) as a recyclable nanocatalyst for degradation of organic dyes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 97:624-631. [DOI: 10.1016/j.msec.2018.12.076] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 12/05/2018] [Accepted: 12/23/2018] [Indexed: 01/19/2023]
|
16
|
Silica, Mesoporous Silica and Its Thiol Functionalized Silica Coated MgO and Mg(OH)2 Materials. CHEMISTRY AFRICA-A JOURNAL OF THE TUNISIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s42250-019-00063-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
17
|
Shang Z, Zhang L, Zhao X, Liu S, Li D. Removal of Pb(II), Cd(II) and Hg(II) from aqueous solution by mercapto-modified coal gangue. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 231:391-396. [PMID: 30368148 DOI: 10.1016/j.jenvman.2018.10.072] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Revised: 09/20/2018] [Accepted: 10/19/2018] [Indexed: 06/08/2023]
Abstract
A low-cost mercapto-modified coal gangue (CG-SH) was fabricated by modification of coal gangue (CG) with (3-mercaptopropyl) trimethoxysilane. The structure and composition for as-prepared CG-SH were characterized by using X-ray diffraction (XRD), Fourier transfer infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray fluorescence (XRF). Results indicated that larger amounts of mercapto-groups (-SH) was successfully introduced onto CG, which followed by acted as active sites for the removal of heavy metal cations, such as Pb(II), Cd(II) and Hg(II). The factors that affected the adsorption equilibrium as well as the removal efficiency, i.e., contact time, initial concentration, pH and temperature, were investigated in detail. The adsorption isotherms for Pb(II), Cd(II) and Hg(II) were well fitted with Langmuir model. The maximum adsorption capacity of CG-SH for Pb(II), Cd(II) and Hg(II) were calculated to be 332.8, 110.4 and 179.2 mg g-1, respectively. The adsorption for Pb(II), Cd(II) and Hg(II) on CG-SH could be well described by pseudo-second-order kinetic model. And thermodynamic analysis suggests that the adsorption process for Pb(II) is exothermal, while that for Cd(II) and Hg(II) are endothermal. The results suggest CG-SH have great potential to be used as efficient absorbent for the removal of heavy metal cations from water.
Collapse
Affiliation(s)
- Zhongbo Shang
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - LiWen Zhang
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - Xuyang Zhao
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - Shanhu Liu
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China
| | - Deliang Li
- Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, China.
| |
Collapse
|
18
|
Wang Y, Wang B, Wang Q, Di J, Miao S, Yu J. Amino-Functionalized Porous Nanofibrous Membranes for Simultaneous Removal of Oil and Heavy-Metal Ions from Wastewater. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1672-1679. [PMID: 30540435 DOI: 10.1021/acsami.8b18066] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Both oil spill and heavy-metal ions in the industrial wastewater cause severe problems for aquatic ecosystem and human health. In the present work, the electrospun superamphiphilic SiO2-TiO2 porous nanofibrous membranes (STPNMs) comprised of intrafiber mesopores and interfiber macropores are modified by an amino-silanization reaction, which affords the membrane (ASTPNMs) the ability to simultaneously remove the oil contaminants and the water-soluble heavy-metal ions from wastewater. The underwater superoleophobicity of ASTPNMs facilitates the highly efficient separation of water and various oils, even emulsifier-stabilized emulsion. Meanwhile, an optimal modification time (15 min, ASTPNM-15) is important for maintaining the under-oil superhydrophilicity of the membrane, based on which the oil contaminant in membrane can be easily cleaned by water alone, showing excellent self-cleaning performance. The adsorption of Pb2+ over ASTPNM-15 reaches equilibrium at around 20 min, and the monolayer adsorption capacity is 142.86 mg g-1 at pH = 5 at 20 °C. In the breakthrough processes, the permeation volume of ASTPNM-15 for the purification of Pb2+ (5 ppm, pH = 5) reaches 160 mL when the concentration of Pb2+ in the filtrate increases to 0.05 ppm. The separation efficiencies of ASTPNM-15 for simulated wastewater containing both oil spill and various heavy-metal ions (Pb2+, Cr3+, Ni2+) are larger than 99.5%. In addition, the separation capacity keeps stable over five purification-regeneration cycles without obvious decrease, proving excellent recyclability and reusability of ASTPNM-15 for practical applications.
Collapse
|
19
|
Xu Y, Wang T, He Z, Zhou M, Yu W, Shi B, Huang K. A Polymerization-Cutting Strategy: Self-Protection Synthesis of Thiol-Based Nanoporous Adsorbents for Efficient Mercury Removal. Chemistry 2018; 24:14436-14441. [DOI: 10.1002/chem.201802378] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Yang Xu
- Department: School of Chemistry and Molecular Engineering; East China Normal University, 500N; Dongchuan Road Shanghai 200241 P. R. China
| | - Tianqi Wang
- Department: School of Chemistry and Molecular Engineering; East China Normal University, 500N; Dongchuan Road Shanghai 200241 P. R. China
| | - Zidong He
- Department: School of Chemistry and Molecular Engineering; East China Normal University, 500N; Dongchuan Road Shanghai 200241 P. R. China
| | - Minghong Zhou
- Department: School of Chemistry and Molecular Engineering; East China Normal University, 500N; Dongchuan Road Shanghai 200241 P. R. China
| | - Wei Yu
- Department: School of Chemistry and Molecular Engineering; East China Normal University, 500N; Dongchuan Road Shanghai 200241 P. R. China
| | - Buyin Shi
- Department: School of Chemistry and Molecular Engineering; East China Normal University, 500N; Dongchuan Road Shanghai 200241 P. R. China
| | - Kun Huang
- Department: School of Chemistry and Molecular Engineering; East China Normal University, 500N; Dongchuan Road Shanghai 200241 P. R. China
| |
Collapse
|
20
|
Leus K, Folens K, Nicomel NR, Perez JPH, Filippousi M, Meledina M, Dîrtu MM, Turner S, Van Tendeloo G, Garcia Y, Du Laing G, Van Der Voort P. Removal of arsenic and mercury species from water by covalent triazine framework encapsulated γ-Fe 2O 3 nanoparticles. JOURNAL OF HAZARDOUS MATERIALS 2018; 353:312-319. [PMID: 29679891 DOI: 10.1016/j.jhazmat.2018.04.027] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 05/21/2023]
Abstract
The covalent triazine framework, CTF-1, served as host material for the in situ synthesis of Fe2O3 nanoparticles. The composite material consisted of 20 ± 2 m% iron, mainly in γ-Fe2O3 phase. The resulting γ-Fe2O3@CTF-1 was examined for the adsorption of AsIII, AsV and HgII from synthetic solutions and real surface-, ground- and wastewater. The material shows excellent removal efficiencies, independent from the presence of Ca2+, Mg2+ or natural organic matter and only limited dependency on the presence of phosphate ions. Its adsorption capacity towards arsenite (198.0 mg g-1), arsenate (102.3 mg g-1) and divalent mercury (165.8 mg g-1) belongs amongst the best-known adsorbents, including many other iron-based materials. Regeneration of the adsorbent can be achieved for use over multiple cycles without a decrease in performance by elution at 70 °C with 0.1 M NaOH, followed by a stirring step in a 5 m% H2O2 solution for As or 0.1 M thiourea and 0.001 M HCl for Hg. In highly contaminated water (100 μg L-1), the adsorbent polishes the water quality to well below the current WHO limits.
Collapse
Affiliation(s)
- Karen Leus
- Department of Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Faculty of Sciences, Ghent University, Krijgslaan 281 (S3), 900 Ghent, Belgium.
| | - Karel Folens
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Nina Ricci Nicomel
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Jeffrey Paulo H Perez
- Department of Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Faculty of Sciences, Ghent University, Krijgslaan 281 (S3), 900 Ghent, Belgium; Laboratory of Analytical Chemistry and Applied Ecochemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Maria Filippousi
- EMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Maria Meledina
- EMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | - Marinela M Dîrtu
- Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST) Université Catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Stuart Turner
- EMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerpen, Belgium
| | | | - Yann Garcia
- Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST) Université Catholique de Louvain, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium
| | - Gijs Du Laing
- Laboratory of Analytical Chemistry and Applied Ecochemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium
| | - Pascal Van Der Voort
- Department of Chemistry, Center for Ordered Materials, Organometallics and Catalysis (COMOC), Faculty of Sciences, Ghent University, Krijgslaan 281 (S3), 900 Ghent, Belgium.
| |
Collapse
|
21
|
Ulu A, Noma SAA, Koytepe S, Ates B. Magnetic Fe3O4@MCM-41 core–shell nanoparticles functionalized with thiol silane for efficient l-asparaginase immobilization. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:1035-1045. [DOI: 10.1080/21691401.2018.1478422] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ahmet Ulu
- Department of Chemistry, Faculty of Science & Arts, Inonu University, Malatya, Turkey
| | - Samir Abbas Ali Noma
- Department of Chemistry, Faculty of Science & Arts, Inonu University, Malatya, Turkey
| | - Suleyman Koytepe
- Department of Chemistry, Faculty of Science & Arts, Inonu University, Malatya, Turkey
| | - Burhan Ates
- Department of Chemistry, Faculty of Science & Arts, Inonu University, Malatya, Turkey
| |
Collapse
|
22
|
Balasundaram K, Sharma M. Concurrent removal of elemental mercury and SO 2 from flue gas using a thiol-impregnated CaCO 3-based adsorbent: a full factorial design study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:15518-15528. [PMID: 29569202 DOI: 10.1007/s11356-018-1672-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 03/04/2018] [Indexed: 06/08/2023]
Abstract
Mercury (Hg) emitted from coal-based thermal power plants (CTPPs) can accumulate and bio-magnify in the food chain, thereby posing a risk to humans and wildlife. The central idea of this study was to develop an adsorbent which can concurrently remove elemental mercury (Hg0) and SO2 emitted from coal-based thermal power plants (CTPPs) in a single unit operation. Specifically, a composite adsorbent of CaCO3 impregnated with 2-mercaptobenimidazole (2-MBI) (referred to as modified calcium carbonate (MCC)) was developed. While 2-MBI having sulfur functional group could selectively adsorb Hg0, CaCO3 could remove SO2. Performance of the adsorbent was evaluated in terms of (i) removal (%) of Hg0 and SO2, (ii) adsorption mechanism, (iii) adsorption kinetics, and (iv) leaching potential of mercury from spent adsorbent. The adsorption studies were performed using a 22 full factorial design of experiments with 15 ppbV of Hg0 and 600 ppmV of SO2. Two factors, (i) reaction temperature (80 and 120 °C; temperature range in flue gas) and (ii) mass of 2-MBI (10 and 15 wt%), were investigated for the removal of Hg0 and SO2 (as %). The maximum Hg0 and SO2 removal was 86 and 93%, respectively. The results of XPS characterization showed that chemisorption is the predominant mechanism of Hg0 and SO2 adsorption on MCC. The Hg0 adsorption on MCC followed Elovich kinetic model which is also indicative of chemisorption on heterogeneous surface. The toxicity characteristic leaching procedure (TCLP) and synthetic precipitation leaching procedure (SPLP) leached mercury from the spent adsorbent were within the acceptable levels defined in these tests. The engineering significance of this study is that the 2-MBI-modified CaCO3-based adsorbent has potential for concurrent removal of Hg0 and SO2 in a single unit operation. With only minor process modifications, the newly developed adsorbent can replace CaCO3 in the flue-gas desulfurization (FGD) system.
Collapse
Affiliation(s)
| | - Mukesh Sharma
- Centre for Environmental Science and Engineering, IIT Kanpur, Kanpur, India.
| |
Collapse
|
23
|
Alsudir S, Lai EPC. Selective detection of ZnO nanoparticles in aqueous suspension by capillary electrophoresis analysis using dithiothreitol and L-cysteine adsorbates. Talanta 2017; 169:115-122. [PMID: 28411799 DOI: 10.1016/j.talanta.2017.03.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 03/05/2017] [Accepted: 03/06/2017] [Indexed: 10/19/2022]
Abstract
The UV detection sensitivity of ZnO nanoparticles in capillary electrophoresis (CE) analysis was selectively enhanced, by 27 or 19 folds, after adsorption of dithiothreitol (DTT) or cysteine (Cys) in 10mM sodium phosphate buffer. Adsorption equilibrium was reached within 90min for DTT but only 10min for Cys. The adsorption process was best modeled by the Langmuir isotherm, indicating the formation of a monolayer of DTT or Cys on the surface of ZnO nanoparticles. The selectivity of DTT and Cys towards ZnO nanoparticles was tested using alumina (Al2O3), ceria (CeO2), silica (SiO2) and titania (TiO2) nanoparticles. No changes in the CE-UV peak area of either adsorbates or nanoparticles were observed, indicating a lack of adsorption. Dynamic light scattering (DLS) provided similar evidence of the selectivity of both adsorbates towards ZnO. Cys also improved the colloidal stability of ZnO nanoparticles by breaking down the aggregates, as evidenced by a reduction of their average hydrodynamic diameter. This new analytical approach provides a simple and rapid methodology to detect ZnO nanoparticles selectively by CE-UV analysis with enhanced sensitivity.
Collapse
Affiliation(s)
- Samar Alsudir
- Ottawa-Carleton Chemistry Institute, Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Edward P C Lai
- Ottawa-Carleton Chemistry Institute, Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada.
| |
Collapse
|
24
|
Dash S, Chaudhuri H, Gupta R, Nair UG, Sarkar A. Fabrication and Application of Low-Cost Thiol Functionalized Coal Fly Ash for Selective Adsorption of Heavy Toxic Metal Ions from Water. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.6b03869] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Subhajit Dash
- Organic Materials Research
Laboratory, Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India
| | - Haribandhu Chaudhuri
- Organic Materials Research
Laboratory, Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India
| | - Radha Gupta
- Organic Materials Research
Laboratory, Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India
| | - Udayabhanu G. Nair
- Organic Materials Research
Laboratory, Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India
| | - Ashis Sarkar
- Organic Materials Research
Laboratory, Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India
| |
Collapse
|
25
|
Leus K, Perez JPH, Folens K, Meledina M, Van Tendeloo G, Du Laing G, Van Der Voort P. UiO-66-(SH)2 as stable, selective and regenerable adsorbent for the removal of mercury from water under environmentally-relevant conditions. Faraday Discuss 2017; 201:145-161. [DOI: 10.1039/c7fd00012j] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dithiol functionalized UiO-66-(SH)2 is developed as an efficient adsorbent for the removal of mercury in aqueous media. Important parameters for the application of MOFs in real-life circumstances include: stability and recyclability of the adsorbents, selectivity for the targeted Hg species in the presence of much higher concentrations of interfering species, and ability to purify wastewater below international environmental limits within a short time. We show that UiO-66-(SH)2 meets all these criteria.
Collapse
Affiliation(s)
- Karen Leus
- Center for Ordered Materials, Organometallics and Catalysis (COMOC)
- Department of Inorganic and Physical Chemistry
- Ghent University
- B-9000 Ghent
- Belgium
| | - Jeffrey Paulo H. Perez
- Center for Ordered Materials, Organometallics and Catalysis (COMOC)
- Department of Inorganic and Physical Chemistry
- Ghent University
- B-9000 Ghent
- Belgium
| | - Karel Folens
- Laboratory of Analytical Chemistry and Applied Ecochemistry (ECOCHEM)
- Department of Applied Analytical and Physical Chemistry
- Ghent University
- B-9000 Ghent
- Belgium
| | - Maria Meledina
- Electron Microscopy for Materials Science (EMAT)
- Department of Physics
- University of Antwerp
- 2020 Antwerp
- Belgium
| | - Gustaaf Van Tendeloo
- Electron Microscopy for Materials Science (EMAT)
- Department of Physics
- University of Antwerp
- 2020 Antwerp
- Belgium
| | - Gijs Du Laing
- Laboratory of Analytical Chemistry and Applied Ecochemistry (ECOCHEM)
- Department of Applied Analytical and Physical Chemistry
- Ghent University
- B-9000 Ghent
- Belgium
| | - Pascal Van Der Voort
- Center for Ordered Materials, Organometallics and Catalysis (COMOC)
- Department of Inorganic and Physical Chemistry
- Ghent University
- B-9000 Ghent
- Belgium
| |
Collapse
|
26
|
Santha Moorthy M, Subramanian B, Panchanathan M, Mondal S, Kim H, Lee KD, Oh J. Fucoidan-coated core–shell magnetic mesoporous silica nanoparticles for chemotherapy and magnetic hyperthermia-based thermal therapy applications. NEW J CHEM 2017. [DOI: 10.1039/c7nj03211k] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fucoidan-coated FeNP@SiOH@Fuc NPs have been proposed for chemotherapy and thermal therapy applications in emerging cancer therapy.
Collapse
Affiliation(s)
- Madhappan Santha Moorthy
- Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus)
- Pukyong National University
- Busan-48513
- Republic of Korea
| | - Bharathiraja Subramanian
- Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus)
- Pukyong National University
- Busan-48513
- Republic of Korea
| | - Manivasagan Panchanathan
- Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus)
- Pukyong National University
- Busan-48513
- Republic of Korea
| | - Sudip Mondal
- Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus)
- Pukyong National University
- Busan-48513
- Republic of Korea
| | - Hyehyun Kim
- Marine-Integrated Bionics Research Center
- Pukyong National University
- Busan-48513
- Republic of Korea
| | - Kang Dae Lee
- Department of Otolaryngology-Head and Neck Surgery, Kosin University College of Medicine
- Busan-48513
- Republic of Korea
| | - Junghwan Oh
- Department of Biomedical Engineering and Center for Marine-Integrated Biotechnology (BK21 Plus)
- Pukyong National University
- Busan-48513
- Republic of Korea
- Marine-Integrated Bionics Research Center
| |
Collapse
|
27
|
Tavares DS, Lopes CB, Daniel-da-Silva AL, Vale C, Trindade T, Pereira ME. Mercury in river, estuarine and seawaters - Is it possible to decrease realist environmental concentrations in order to achieve environmental quality standards? WATER RESEARCH 2016; 106:439-449. [PMID: 27760411 DOI: 10.1016/j.watres.2016.10.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 10/11/2016] [Accepted: 10/12/2016] [Indexed: 06/06/2023]
Abstract
Dithiocarbamate-functionalized magnetite nanoparticles (Fe3O4@SiO2/SiDTC) have been investigated as a convenient and effective sorbent for mercury removal from river, estuarine and sea waters, and their capability to decrease realistic environmental concentrations to the new environmental quality standards was evaluated. The sorption kinetics was well described by the Elovich model and the initial sorption rate was dependent of the sorbent dose. Except for river water sample, the Fe3O4@SiO2/SiDTC particles uptake 99.9% or more of the Hg(II) in the waters (initially at the concentration of 50 μg/L), allowing to reach residual concentrations lower than the new environmental quality standards (70 ng/L) with only 10 mg/L of sorbent material. The distribution coefficients of mercuric ions between the magnetic particles and the different natural water types were above 103 mL/g for the river water and above 105 mL/g for the estuarine and sea waters. The differences observed between the water types can be attributed to different water composition (effect of the matrix), which plays an important role in the efficiency of the water treatment.
Collapse
Affiliation(s)
- Daniela S Tavares
- Department of Chemistry and CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal; Department of Chemistry and CICECO, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Cláudia B Lopes
- Department of Chemistry and CICECO, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal; CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050-123, Porto, Portugal.
| | - Ana L Daniel-da-Silva
- Department of Chemistry and CICECO, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Carlos Vale
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050-123, Porto, Portugal
| | - Tito Trindade
- Department of Chemistry and CICECO, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| | - Maria E Pereira
- Department of Chemistry and CESAM, University of Aveiro, Campus de Santiago, 3810-193, Aveiro, Portugal
| |
Collapse
|
28
|
Mohmood I, Lopes CB, Lopes I, Tavares DS, Soares AMVM, Duarte AC, Trindade T, Ahmad I, Pereira E. Remediation of mercury contaminated saltwater with functionalized silica coated magnetite nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 557-558:712-721. [PMID: 27039062 DOI: 10.1016/j.scitotenv.2016.03.075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/10/2016] [Accepted: 03/11/2016] [Indexed: 06/05/2023]
Abstract
The study aimed to evaluate the efficiency of dithiocarbamate functionalized silica coated magnetite nanoparticles (NPs) for Hg decontamination of saltwater either contaminated with Hg alone or with As and Cd. For this, the residual levels of Hg in seawater were assessed and Hg-contaminated or Hg+As+Cd-contaminated seawater toxicity to aquatic biota, before and after the sorption process, was compared. The results showed that under highly competitive conditions (water salts, Cd and As), the removal of Hg from seawater, by using these magnetic NPs, for the lowest concentration (50μg/L) was superior to 98% and for the highest concentration (500μg/L) ranged between 61% to 67%. Despite the great affinity of the magnetic NPs for Hg, they were not effective at removing As and Cd from seawater. In relation to the ecotoxicity endpoints after remediation, the mixture with lower Hg concentration exhibited no toxicity to rotifer Brachionus plicatilis and bacteria Vibrio fischeri ; however, the mixture with higher concentration revealed toxicity. In addition, the toxicity of bacteria V. fischeri, rotifer B. plicatilis and algae Phaeodactylum tricornutum, whose responses where inhibited during its exposure to the non-remediate sample was considerably reduced after treatment with NPs. Furthermore, microalgae P. tricornutum appears to be most sensitive species while Artemia franciscana showed no toxic effects to the tested solutions. Both chemical and ecotoxicological approaches revealed a high efficiency for the remediation of Hg-contaminated saltwater.
Collapse
Affiliation(s)
- Iram Mohmood
- CESAM and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Cláudia B Lopes
- CICECO and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal; CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, Rua dos Bragas 289, 4050-123 Porto, Portugal
| | - Isabel Lopes
- CESAM and Department of Biology, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Daniela S Tavares
- CESAM and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Amadeu M V M Soares
- CESAM and Department of Biology, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Armando C Duarte
- CESAM and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Tito Trindade
- CICECO and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Iqbal Ahmad
- Centre for Occupational and Environmental Health, Centre for Epidemiology, Institute of Population Health, Faculty of Medical and Human Sciences, The University of Manchester, Manchester M13 9PL, UK
| | - Eduarda Pereira
- CESAM and Department of Chemistry, Campus de Santiago, 3810-193 Aveiro, Portugal
| |
Collapse
|