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Shi Y, Li D, Xiao L, Sheerin ED, Mullarkey D, Yang L, Bai X, Shvets IV, Boland JJ, Wang JJ. The influence of drinking water constituents on the level of microplastic release from plastic kettles. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127997. [PMID: 34986566 DOI: 10.1016/j.jhazmat.2021.127997] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/02/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Microplastic (MP) release from household plastic products has become a global concern due to the high recorded levels of microplastic and the direct risk of human exposure. However, the most widely used MP measurement protocol, which involves the use of deionized (DI) water, fails to account for the ions and particles present in real drinking water. In this paper, the influence of typical ions (Ca2+/HCO3-, Fe3+, Cu2+) and particles (Fe2O3 particles) on MP release was systematically investigated by conducting a 100-day study using plastic kettles. Surprisingly, after 40 days, all ions resulted in a greater than 89.0% reduction in MP release while Fe2O3 particles showed no significant effect compared to the DI water control. The MP reduction efficiency ranking is Fe3+ ≈ Cu2+ > Ca2+/HCO3- > > Fe2O3 particles ≈ DI water. Physical and chemical characterization using SEM-EDX, AFM, XPS and Raman spectroscopy confirmed Ca2+/HCO3-, Cu2+ and Fe3+ ions are transformed into passivating films of CaCO3, CuO, and Fe2O3, respectively, which are barriers to MP release. In contrast, there was no film formed when the plastic was exposed to Fe2O3 particles. Studies also confirmed that films with different chemical compositions form naturally in kettles during real life due to the different ions present in local regional water supplies. All films identified in this study can substantially reduce the levels of MP release while withstanding the repeated adverse conditions associated with daily use. This study underscores the potential for regional variations in human MP exposure due to the substantial impact water constituents have on the formation of passivating film formation and the subsequent release of MPs.
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Affiliation(s)
- Yunhong Shi
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland
| | - Dunzhu Li
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland
| | - Liwen Xiao
- Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland; TrinityHaus, Trinity College Dublin, Dublin 2, Ireland.
| | - Emmet D Sheerin
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Daragh Mullarkey
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - Luming Yang
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; Department of Civil, Structural and Environmental Engineering, Trinity College Dublin, Dublin 2, Ireland
| | - Xue Bai
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Igor V Shvets
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; School of Physics, Trinity College Dublin, Dublin 2, Ireland
| | - John J Boland
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland; School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.
| | - Jing Jing Wang
- AMBER Research Centre and Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Dublin 2, Ireland.
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Development of Nanosized Mn3O4-Co3O4 on Multiwalled Carbon Nanotubes for Cathode Catalyst in Urea Fuel Cell. ENERGIES 2020. [DOI: 10.3390/en13092322] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Double-oxide Mn3O4-Co3O4 nanoparticles were synthesized and anchored on multiwalled carbon nanotubes (MWCNTs) via a single-step solvothermal method. The largest specific area (99.82 m2g−1) of the catalyst was confirmed via a nitrogen adsorption isotherm. Furthermore, the uniform coating of the Mn3O4-Co3O4 nanoparticles on the surface of the MWCNTs was observed via scanning electron microscopy and transmission electron microscopy; the uniform coating provided an effective transport pathway during the electrocatalytic activities. The rotating disk electrode and rotating ring disk electrode measurements indicated that the electron transfer number was 3.96 and the evolution of H2O2 was 2%. In addition, the Mn3O4-Co3O4/MWCNT catalyst did not undergo urea poisoning and remained stable in an alkaline solution. Conversely, commercial Pt/C could not withstand urea poisoning for long. The performance cell achieved a power density of 0.4226 mW cm−2 at 50 °C. Therefore, Mn3O4-Co3O4/MWCNT is an efficient and inexpensive noble-metal-free cathodic catalyst for direct urea fuel cells.
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Pereira DR, Tapeinos C, Rebelo AL, Oliveira JM, Reis RL, Pandit A. Scavenging Nanoreactors that Modulate Inflammation. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/adbi.201800086] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Diana R. Pereira
- 3B's Research Group; University of Minho; Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra 4805-017 Barco GMR Portugal
- CÚRAM; Centre for Research in Medical Devices; National University of Ireland, Galway; Galway Ireland
| | - Christos Tapeinos
- CÚRAM; Centre for Research in Medical Devices; National University of Ireland, Galway; Galway Ireland
| | - Ana L. Rebelo
- CÚRAM; Centre for Research in Medical Devices; National University of Ireland, Galway; Galway Ireland
| | - Joaquim M. Oliveira
- 3B's Research Group; University of Minho; Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra 4805-017 Barco GMR Portugal
| | - Rui L. Reis
- 3B's Research Group; University of Minho; Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra 4805-017 Barco GMR Portugal
| | - Abhay Pandit
- CÚRAM; Centre for Research in Medical Devices; National University of Ireland, Galway; Galway Ireland
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Enhanced Sensitivity for Hydrogen Peroxide Detection: Polydiacetylene Vesicles with Phenylboronic Acid Head Group. J Fluoresc 2015; 26:121-7. [DOI: 10.1007/s10895-015-1691-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 10/07/2015] [Indexed: 12/28/2022]
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Zhang JX, Wang YJ, Zhang W, Wang NX, Bai CB, Xing YL, Li YH, Wen JL. Selective nickel- and manganese-catalyzed decarboxylative cross coupling of some α,β-unsaturated carboxylic acids with cyclic ethers. Sci Rep 2014; 4:7446. [PMID: 25502282 PMCID: PMC4264008 DOI: 10.1038/srep07446] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 11/14/2014] [Indexed: 11/20/2022] Open
Abstract
A nickel- and manganese-catalyzed decarboxylative cross coupling of α, β-unsaturated carboxylic acids with cyclic ethers such as tetrahydrofuran and 1, 4-dioxane was developed. Oxyalkylation was achieved when nickel acetate was used as catalyst, while manganese acetate promoted the reaction of alkenylation.
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Affiliation(s)
- Jia-Xiang Zhang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yan-Jing Wang
- College of Sciences, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wei Zhang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Nai-Xing Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Cui-Bing Bai
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Ya-Lan Xing
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yi-He Li
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jia-Long Wen
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Lu S, Jia C, Duan X, Zhang X, Luo F, Han Y, Huang H. Polydiacetylene vesicles for hydrogen peroxide detection. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2013.11.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kavakli C, Meini S, Harzer G, Tsiouvaras N, Piana M, Siebel A, Garsuch A, Gasteiger HA, Herranz J. Nanosized Carbon-Supported Manganese Oxide Phases as Lithium-Oxygen Battery Cathode Catalysts. ChemCatChem 2013. [DOI: 10.1002/cctc.201300331] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhou J, Yu L, Sun M, Yang S, Ye F, He J, Hao Z. Novel Synthesis of Birnessite-Type MnO2 Nanostructure for Water Treatment and Electrochemical Capacitor. Ind Eng Chem Res 2013. [DOI: 10.1021/ie400577a] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Junli Zhou
- Faculty of Chemical Engineering and
Light Industry, Guangdong University of Technology, Guangzhou 510006,
China
| | - Lin Yu
- Faculty of Chemical Engineering and
Light Industry, Guangdong University of Technology, Guangzhou 510006,
China
| | - Ming Sun
- Faculty of Chemical Engineering and
Light Industry, Guangdong University of Technology, Guangzhou 510006,
China
| | - Shanyu Yang
- Faculty of Chemical Engineering and
Light Industry, Guangdong University of Technology, Guangzhou 510006,
China
| | - Fei Ye
- Faculty of Chemical Engineering and
Light Industry, Guangdong University of Technology, Guangzhou 510006,
China
| | - Jun He
- Faculty of Chemical Engineering and
Light Industry, Guangdong University of Technology, Guangzhou 510006,
China
| | - Zhifeng Hao
- Faculty of Chemical Engineering and
Light Industry, Guangdong University of Technology, Guangzhou 510006,
China
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Manganese Compounds as Versatile Catalysts for the Oxidative Degradation of Organic Dyes. ADVANCES IN INORGANIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-404582-8.00005-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Valim R, Santos M, Lanza M, Machado S, Lima F, Calegaro M. Oxygen reduction reaction catalyzed by ɛ-MnO2: Influence of the crystalline structure on the reaction mechanism. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.08.075] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Do SH, Jo YH, Park HD, Kong SH. Synthesis of iron composites on nano-pore substrates: identification and its application to removal of cyanide. CHEMOSPHERE 2012; 89:1450-1456. [PMID: 22784867 DOI: 10.1016/j.chemosphere.2012.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 05/24/2012] [Accepted: 06/15/2012] [Indexed: 06/01/2023]
Abstract
Two types of nano-pore substrates, waste-reclaimed (WR) and soil mineral (SM) with the relatively low density, were modified by the reaction with irons (i.e. Fe(II):Fe(III)=1:2) and the applicability of the modified substrates (i.e. Fe-WR and Fe-SM) on cyanide removal was investigated. Modification (i.e. Fe immobilization on substrate) decreased the BET surface area and PZC of the original substrates while it increased the pore diameter and the cation exchange capacity (CEC) of them. XRD analysis identified that maghemite (γ-Fe(2)O(3)) and iron silicate composite ((Mg, Fe)SiO(3)) existed on Fe-WR, while clinoferrosilite (FeSiO(3)) was identified on Fe-SM. Cyanide adsorption showed that WR adsorbed cyanide more favorably than SM. The adsorption ability of both original substrates was enhanced by the modification, which increased the negative charges of the surfaces. Without the pH adjustment, cyanide was removed as much as 97% by the only application of Fe-WR, but the undesirable transfer to hydrogen cyanide was possible because the pH was dropped to around 7.5. With a constant pH of 12, only 54% of cyanide was adsorbed on Fe-WR. On the other hand, the pH was kept as 12 without adjustment in Fe-WR/H(2)O(2) system and cyanide was effectively removed by not only adsorption but also the catalytic oxidation. The observed first-order rate constant (k(obs)) for cyanide removal were 0.49 (± 0.081) h(-1). Moreover, the more cyanate production with the modified substrates indicated the iron composites, especially maghemite, on substrates had the catalytic property to increase the reactivity of H(2)O(2).
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Affiliation(s)
- Si-Hyun Do
- Department of Chemical Engineering, Hanyang University, Seoul 133-791, Republic of Korea
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Rothbart S, Ember EE, van Eldik R. Mechanistic studies on the oxidative degradation of Orange II by peracetic acid catalyzed by simple manganese(ii) salts. Tuning the lifetime of the catalyst. NEW J CHEM 2012. [DOI: 10.1039/c2nj20852k] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Yoshimoto M, Miyazaki Y, Umemoto A, Walde P, Kuboi R, Nakao K. Phosphatidylcholine vesicle-mediated decomposition of hydrogen peroxide. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:9416-22. [PMID: 17655340 DOI: 10.1021/la701277f] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The decomposition of hydrogen peroxide (H2O2) was examined in aqueous solution (50 mM Tris-HCl buffer, pH 7.4, containing 100 mM NaCl) at 25 degrees C in pure buffer or in the presence of either vesicles or micelles formed from various phosphatidylcholines (PCs). In the absence of PCs, more than 90% of the initially added H2O2 (1.0 mM) remained intact after incubation for 120 h. The effect of the PCs on the decomposition of H2O2 was studied by using different PCs that varied in terms of number of carbon atoms in the two acyl chains n as well as in terms of the degree of unsaturation. PCs with short hydrocarbon chains (n = 4, 6-8) were dissolved in the buffer solution in the form of nonassociated monomers or as micelles in equilibrium with monomers at a fixed PC concentration of 10 mM. The presence of these short-chain PCs slightly enhanced the H2O2 decomposition rate. Micelles formed by non-lipid detergents (sodium cholate, Triton X-100, and sodium dodecylsulfate) had a similar effect. In marked contrast, PCs with long hydrocarbon chains (n > or = 10) dispersed in buffer solution as vesicles (liposomes) significantly enhanced the rate of H2O2 decomposition, with the most effective PC being 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) at 25 degrees C. This indicates that the packing density of the PC molecules influences the reactivity, presumably through the direct interaction of the PC assemblies with H2O2 molecules. Furthermore, in the case of vesicles formed from PCs with unsaturated acyl chains (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine, POPC; 1,2-dioleoyl-sn-glycero-3-phosphocholine, DOPC), carbon-carbon double bond oxidation did not occur extensively under the conditions used. This indicates that the observed effect of PCs on the decomposition of H2O2 is indeed related to the assembly structure (vesicle vs micelles vs monomers) and is clearly not related to the presence of unsaturated hydrocarbon chains. Fluorescence polarization measurements of two fluorescent probes embedded either in the acyl chain region of the vesicles (DPH, 1,6-diphenyl-1,3,5-hexatriene) or on the surface of the vesicles (TMA-DPH, 1-(4-trimethylammoniumphenyl)-6-phenyl-1,3,5-hexatriene iodide) show that the presence of H2O2 leads to a decrease in the fluidity of the lipid-water surface and not to a change in the fluidity of the hydrophobic region of the vesicle bilayer. This indicates that the decomposition of H2O2 is triggered through interactions between H2O2 and the polar head group area of PC vesicles.
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Affiliation(s)
- Makoto Yoshimoto
- Department of Applied Molecular Bioscience, Yamaguchi University, Tokiwadai, Ube, Japan.
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