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Vall, M., Strömme, M. & Cheung, O. (2019). Amine-Modified Mesoporous Magnesium Carbonate as an Effective Adsorbent for Azo Dyes. ACS OMEGA, 4(2), 2973-2979
Open this publication in new window or tab >>Amine-Modified Mesoporous Magnesium Carbonate as an Effective Adsorbent for Azo Dyes
2019 (English)In: ACS OMEGA, ISSN 2470-1343, Vol. 4, no 2, p. 2973-2979Article in journal (Refereed) Published
Abstract [en]

Mesoporous magnesium carbonate (MMC) was evaluated as a potential candidate material for removal of dyes from textile industry wastewater. The adsorption property of MMC was analyzed for three different azo dyes: reactive black 5 (RB5), amaranth (AM), and acid red 183 (AR183). Further, the effect of porosity, amine modification, ionic strength, and pH was evaluated. MMC modified with 3-(aminopropyl)-triethoxysilane (aMMC) showed consistently high uptake levels for all of the azo dyes tested; the uptake of RB5, AM, and AR183 was similar to 360, similar to 143 and similar to 170 mg/g, respectively. The results demonstrated the importance of porosity and surface chemistry in the effective adsorption of the azo dye in aqueous systems. The uptake of RB5 and AM on aMMC was not significantly affected by pH (when varied between 4 and 10), although reduced uptake of RB5 and AM was observed at pH values <2 and >12. The addition of NaCl salt at concentrations up to 1000 mM had minimal effect on the high uptake of RB5 on aMMC. The uptake of AM by aMMC was reduced by approximately 20% in the presence of NaCl even at low concentrations. The uptake of AR183 by aMMC varied noticeably by changes in pH and no specific trend was observed. The presence of NaCl also adversely affected the uptake of AR183 on aMMC. The adsorption of the azo dye on aMMC was most likely driven by electrostatic interactions. We show here that aMMC is a potential candidate adsorbent for the effective removal of azo dyes from textile wastewaters.

National Category
Materials Chemistry
Identifiers
urn:nbn:se:uu:diva-379941 (URN)10.1021/acsomega.8b03493 (DOI)000460237300054 ()
Funder
Swedish Research Council, 2014-3929
Available from: 2019-03-26 Created: 2019-03-26 Last updated: 2019-03-26Bibliographically approved
Vall, M., Strömme, M. & Cheung, O. (2019). Amine-Modified Mesoporous Magnesium Carbonate as an Effective Adsorbent for Azo Dyes. ACS Omega, 4, 2973-2979
Open this publication in new window or tab >>Amine-Modified Mesoporous Magnesium Carbonate as an Effective Adsorbent for Azo Dyes
2019 (English)In: ACS Omega, Vol. 4, p. 2973-2979Article in journal (Refereed) Published
Abstract [en]

Mesoporous magnesium carbonate (MMC) was evaluated as a potential candidate material for removal of dyes from textile industry wastewater. The adsorption property of MMC was analyzed for three different azo dyes: reactive black 5 (RB5), amaranth (AM), and acid red 183 (AR183). Further, the effect of porosity, amine modification, ionic strength, and pH was evaluated. MMC modified with 3-(aminopropyl)triethoxysilane (aMMC) showed consistently high uptake levels for all of the azo dyes tested; the uptake of RB5, AM, and AR183 was ∼360, ∼143 and ∼170 mg/g, respectively. The results demonstrated the importance of porosity and surface chemistry in the effective adsorption of the azo dye in aqueous systems. The uptake of RB5 and AM on aMMC was not significantly affected by pH (when varied between 4 and 10), although reduced uptake of RB5 and AM was observed at pH values <2 and >12. The addition of NaCl salt at concentrations up to 1000 mM had minimal effect on the high uptake of RB5 on aMMC. The uptake of AM by aMMC was reduced by approximately 20% in the presence of NaCl even at low concentrations. The uptake of AR183 by aMMC varied noticeably by changes in pH and no specific trend was observed. The presence of NaCl also adversely affected the uptake of AR183 on aMMC. The adsorption of the azo dye on aMMC was most likely driven by electrostatic interactions. We show here that aMMC is a potential candidate adsorbent for the effective removal of azo dyes from textile wastewaters.

National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-380594 (URN)10.1021/acsomega.8b03493 (DOI)
Available from: 2019-03-29 Created: 2019-03-29 Last updated: 2019-04-10Bibliographically approved
Åhlén, M., Cheung, O. & Strömme, M. (2019). Amorphous Mesoporous Magnesium Carbonate as a Functional Support for UV-Blocking Semiconductor Nanoparticles for Cosmetic Applications. ACS Omega, 4(2), 4429-4436
Open this publication in new window or tab >>Amorphous Mesoporous Magnesium Carbonate as a Functional Support for UV-Blocking Semiconductor Nanoparticles for Cosmetic Applications
2019 (English)In: ACS Omega, ISSN 2470-1343, Vol. 4, no 2, p. 4429-4436Article in journal (Refereed) Published
Abstract [en]

Highly porous amorphous mesoporous magnesium carbonate (MMC) with a Brunauer–Emmett–Teller (BET) surface area over 600 m2·g–1 was evaluated as a micrometer-sized support for TiO2 and ZnO semiconductor nanoparticles. The resulting MMC-TiO2-ZnO contained 25 wt % TiO2 and 25 wt % ZnO incorporated into an MMC structure without blocking the pores as revealed by nitrogen sorption isotherms, scanning electron microscopy, and transmission electron microscopy. In vitro ultraviolet (UV) light-blocking experiments showed that the MMC-TiO2-ZnO had comparable UV-blocking ability as a TiO2 and ZnO nanoparticle mixture containing the same amount of semiconductor particles without a support. Amaranth dye degradation studies revealed that MMC was able to diminish the catalytic activity of TiO2 and ZnO nanoparticles, possibly due to the presence of free carbonate ions in MMC as well as in the dye solution. In summary, this paper demonstrated for the first time that micrometer-sized particles of the recently emerged MMC materials can be used as a support for sun-blocking semiconductor nanoparticles without compromising their UV blocking ability and with significantly lowered photocatalytic activity. When used in a formulation as a support for semiconductor nanoparticles, MMC may also reduce the risk of nanoparticle exposure, and the high porosity of MMC-TiO2-ZnO may be utilized for the delivery of therapeutic agents to the skin.

National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-379180 (URN)10.1021/acsomega.8b03498 (DOI)000460237300215 ()
Funder
Swedish Research Council, 2014-3929
Available from: 2019-03-13 Created: 2019-03-13 Last updated: 2019-03-25Bibliographically approved
Strömme, M. (2019). Be ready for new opportunities! Nanotechnology will totally change our society, industry and lives. In: Enfo (Ed.), Integration Days 2019: . Paper presented at Integration Days 31/1-1/2 2019, Lindholmen Conference Centre GOTHENBURG, SWEDEN. Göteborg
Open this publication in new window or tab >>Be ready for new opportunities! Nanotechnology will totally change our society, industry and lives
2019 (English)In: Integration Days 2019 / [ed] Enfo, Göteborg, 2019Conference paper, Oral presentation with published abstract (Other academic)
Place, publisher, year, edition, pages
Göteborg: , 2019
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-375517 (URN)
Conference
Integration Days 31/1-1/2 2019, Lindholmen Conference Centre GOTHENBURG, SWEDEN
Available from: 2019-01-30 Created: 2019-01-30 Last updated: 2019-05-09Bibliographically approved
Vall, M., Hultberg, J., Strömme, M. & Cheung, O. (2019). Carbon dioxide adsorption on mesoporous magnesium carbonate. Paper presented at 10th International Conference on Applied Energy (ICAE), Hong Kong, August 22-25, 2018. Energy Procedia, 158, 4671-4676
Open this publication in new window or tab >>Carbon dioxide adsorption on mesoporous magnesium carbonate
2019 (English)In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 158, p. 4671-4676Article in journal (Refereed) Published
Abstract [en]

Mesoporous magnesium carbonate (MMC) was synthesized and tested for its ability to separate CO2 from N2. The pure gas CO2 uptake of MMC was around 1.5 mmol/g at 101 kPa, 0 °C. The N2 uptake under the same conditions was less than 0.1 mmol/g. Al(NO3)3, Al2O3, K2CO3 and KNO3 were introduced into the porous structure of MMC as additives. All of the additives tested increased the CO2 uptake of MMC and increased its selectivity towards CO2. The incorporation of 5 wt.% K2CO3 increased the CO2 uptake of MMC up to over 3.2 mmol/g. The ideally adsorbed solution theory was used to calculate the CO2 selectivity of MMC and MMC with additives for a hypothetical gas mixture that contained 15% CO2: 85% N2. The CO2 selectivity at 101 kPa (0 °C) was around 60. MMC with 5 wt.% K2CO3 had a CO2 selectivity of over 150 under the same conditions. Vacuum swing cyclic CO2 adsorption/desorption showed that the CO2 uptake on MMC with 5 wt.% K2CO3 decreased after each cycle. Heat regeneration (up to 250 °C, for 10 minutes) could recover most of the lost CO2 capacity after each cycle. Heat regeneration indicatively improved the cyclic performance of this adsorbent. MMC with 5 wt.% K2CO3 was the best performing adsorbent in this study and can potentially be further developed into a good CO2 adsorbent for temperature swing adsorption (TSA) processes.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Carbon Capture, Storage, Gas separation, Adsorbent, Magnesium carbonate
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-379696 (URN)10.1016/j.egypro.2019.01.738 (DOI)000471031705006 ()
Conference
10th International Conference on Applied Energy (ICAE), Hong Kong, August 22-25, 2018
Note

Part of special issue: Innovative Solutions for Energy Transitions

Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2019-08-05Bibliographically approved
Oka, K., Strietzel, C., Emanuelsson, R., Nishide, H., Oyaizu, K., Strömme, M. & Sjödin, M. (2019). Characterization of PEDOT-Quinone conducting redox polymers in water-in-salt electrolytes for safe and high-energy Li-ion batteries. Electrochemistry communications, 105, Article ID 106489.
Open this publication in new window or tab >>Characterization of PEDOT-Quinone conducting redox polymers in water-in-salt electrolytes for safe and high-energy Li-ion batteries
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2019 (English)In: Electrochemistry communications, ISSN 1388-2481, E-ISSN 1873-1902, Vol. 105, article id 106489Article in journal (Refereed) Published
Abstract [en]

Li-ion batteries (LIBs) raise safety and environmental concerns, which mostly arise from their toxic and flammable electrolytes and the extraction of limited material resources by mining. Recently, water-in-salt electrolytes (WiSEs), in which a large amount of lithium salt is dissolved in water, have been proposed to allow for assembling safe and high-voltage (>3.0 V) aqueous LIBs. In addition, organic materials derived from abundant building blocks and their tunable properties could provide safe and sustainable replacements for inorganic cathode materials. In the current work, the electrochemical properties of a conducting redox polymer based on poly(3,4-ethylenedioxythiophene) (PEDOT) with hydroquinone (HQ) pendant groups have been characterized in WiSEs. The quinone redox reaction occurs within the potential region where the polymer is conducting, and fast redox conversion that involves lithium cycling during pendant group redox conversion was observed. These properties make conducting redox polymers promising candidates as cathode-active materials for safe and high-energy aqueous LIBs. An organic-based aqueous LIB, with a HQ-PEDOT as a cathode, Li4Ti5O12 (LTO) as an anode, and ca. 15 m lithium bis(trifluoromethanesulfonyl)imide water/dimethyl carbonate (DMC) as electrolyte, yielded an output voltage of 1.35 V and high rate capabilities up to 500C.

Place, publisher, year, edition, pages
Elsevier, 2019
Keywords
Conducting redox polymer, Organic electronics, Renewable energy storage, Lithium ion battery, Water-in-salt electrolyte, Quinone
National Category
Nano Technology Materials Chemistry
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-389513 (URN)10.1016/j.elecom.2019.106489 (DOI)000484833800003 ()
Funder
Carl Tryggers foundation Swedish Research CouncilSwedish Research Council FormasSweGRIDS - Swedish Centre for Smart Grids and Energy Storage
Available from: 2019-07-16 Created: 2019-07-16 Last updated: 2019-10-17Bibliographically approved
Zhou, S., Nyholm, L., Strømme, M. & Wang, Z. (2019). Cladophora Cellulose: Unique Biopolymer Nanofibrils for Emerging Energy, Environmental, and Life Science Applications. Accounts of Chemical Research, 52(8), 2232-2243
Open this publication in new window or tab >>Cladophora Cellulose: Unique Biopolymer Nanofibrils for Emerging Energy, Environmental, and Life Science Applications
2019 (English)In: Accounts of Chemical Research, ISSN 0001-4842, E-ISSN 1520-4898, Vol. 52, no 8, p. 2232-2243Article, review/survey (Refereed) Published
Abstract [en]

Conspectus

Because of its natural abundance, hierarchical fibrous structure, mechanical flexibility, potential for chemical modification, biocompatibility, renewability, and abundance, cellulose is one of the most promising green materials for a bio-based future and sustainable economy. Cellulose derived from wood or bacteria has dominated the industrial cellulose market and has been developed to produce a number of advanced materials for applications in energy storage, environmental, and biotechnology areas. However, Cladophora cellulose (CC) extracted from green algae has unprecedented advantages over those celluloses because of its high crystallinity (>95%), low moisture adsorption capacity, excellent solution processability, high porosity in the mesoporous range, and associated high specific surface area. The unique physical and chemical properties of CC can add new features to and enhance the performance of nanocellulose-based materials, and these attributes have attracted a great deal of research interest over the past decade.This Account summarizes our recent research on the preparation, characterization, functionalization, and versatile applications of CC. Our aim is to provide a comprehensive overview of the uniqueness of CC with respect to material structure, properties, and emerging applications. We discuss the potential of CC in energy storage, environmental science, and life science, with emphasis on applications in which its properties are superior to those of other nanocellulose forms. Specifically, we discuss the production of the first-ever paper battery based on CC. This battery has initiated a rising interest in the development of sustainable paper-based energy storage devices, where cellulose is used as a combined building block and binder for paper electrodes of various types in combination with carbon, conducting polymers, and other electroactive materials. High-active-mass and high-mass-loading paper electrodes can be made in which the CC acts as a high-surface-area and porous substrate while a thin layer of electroactive material is coated on individual nanofibrils. We have shown that CC membranes can be used directly as battery separators because of their low moisture content, high mesoporosity, high thermal stability, and good electrolyte wettability. The safety, stability, and capacity of lithium-ion batteries can be enhanced simply by using CC-based separators. Moreover, the high chemical modifiability and adjustable porosity of dried CC papers allow them to be used as advanced membranes for environmental science (water and air purification, pollutant adsorption) and life science (virus isolation, protein recovery, hemodialysis, DNA extraction, bioactive substrates). Finally, we outline some concluding perspectives on the challenges and future directions of CC research with the aim to open up yet unexplored fields of use for this interesting material.

National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-389512 (URN)10.1021/acs.accounts.9b00215 (DOI)000482534600019 ()31290643 (PubMedID)
Funder
Swedish Research CouncilSwedish Energy AgencyStiftelsen Olle Engkvist Byggmästare
Available from: 2019-07-16 Created: 2019-07-16 Last updated: 2019-10-04Bibliographically approved
Sun, R., Tai, C.-W., Strömme, M. & Cheung, O. (2019). Hierarchical Porous Carbon Synthesized from Novel Porous Amorphous Calcium or Magnesium Citrate with Enhanced SF6 Uptake and SF6/N2 Selectivity. ACS Applied Nano Materials, 2(2), 778-789
Open this publication in new window or tab >>Hierarchical Porous Carbon Synthesized from Novel Porous Amorphous Calcium or Magnesium Citrate with Enhanced SF6 Uptake and SF6/N2 Selectivity
2019 (English)In: ACS Applied Nano Materials, ISSN 2574-0970, Vol. 2, no 2, p. 778-789Article in journal (Refereed) Published
Abstract [en]

The emission of greenhouse gases such as CO2and SF6 is believed to contribute significantly toward globalwarming. One way to reduce their release is by adsorption atpoint sources using a suitable adsorbent. In this work we presentthe synthesis of two hierarchical porous carbon materials(referred to as PC-CaCit and PC-MgCit) with a high uptake ofSF6 (5.23 mmol/g, 0 °C, 100 kPa) and a reasonable uptake ofCO2 (>3 mmol/g). PC-CaCit and PC-MgCit were obtained bypyrolysis of the most porous calcium citrate and magnesiumcitrate ever reported, which were synthesized by us. TheLangmuir specific surface area of PC-CaCit and PC-MgCit wasover 2000 m2/g (BET surface area also close to 2000 m2/g). Wecharacterized PC-CaCit and PC-MgCit using a range of advanced characterization techniques including N2 adsorption, highresolutionelectron microscopy, powder X-ray diffraction, and X-ray photoelectron spectroscopy. PC-CaCit and PC-MgCit alsoshowed a SF6-over-N2 selectivity of ∼33 at 0 °C (100 kPa), good cyclic performance, and moderately low heat of adsorption.The porous carbons synthesized in this work are good candidate adsorbents for greenhouse gases.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2019
Keywords
porous carbon, SF6 adsorption, CO2 adsorption, amorphous calcium citrate, amorphous magnesium citrate
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-381054 (URN)10.1021/acsanm.8b02005 (DOI)000469409900019 ()
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Available from: 2019-04-03 Created: 2019-04-03 Last updated: 2019-08-21Bibliographically approved
Zhou, S., Strömme, M. & Xu, C. (2019). Highly Transparent, Flexible, and Mechanically Strong Nanopapers of Cellulose Nanofibers @Metal–Organic Frameworks. Chemistry - A European Journal, 25(14), 3515-3520
Open this publication in new window or tab >>Highly Transparent, Flexible, and Mechanically Strong Nanopapers of Cellulose Nanofibers @Metal–Organic Frameworks
2019 (English)In: Chemistry - A European Journal, ISSN 0947-6539, E-ISSN 1521-3765, Vol. 25, no 14, p. 3515-3520Article in journal (Refereed) Published
Abstract [en]

Freestanding nanopapers are fabricated by the assembly of metal-organic frameworks (MOFs) onto cellulose nanofibers (CNFs). The CNFs are wrapped by continuously nucleated MOF layers (CNF@MOF) by interfacial synthesis, the charge density on the surface of the CNFs and the dosage of the surfactant polyvinylpyrrolidone (PVP) being carefully adjusted. The obtained CNF@MOF nanofibers with long-range, continuous, hybrid nanostructures are very different to the composites formed by aggregation of MOF nanoparticles on the substrates. Four typical MOFs (HKUST-1, Al-MIL-53, Zn-MOF-74, ZIF-CO3-1) are successfully grown onto CNFs in aqueous solutions and further fabricated into freestanding nanopapers. Because of the unique nanostructures and morphologies, the corresponding flexible nanopapers exhibit hierarchical meso-micropores, high optical transparency, high thermal stability, and high mechanical strength. A proof-of-concept study shows that the CNF@MOF nanopapers can be used as efficient filters to separate volatile organic compounds (VOCs) from the air. This work provides a new path for structuring MOF materials that may boost their practical application.

Keywords
metal-organic frameworks, cellulose nanofibers, interfacial synthesis, nanopaper, VOC separation
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-375427 (URN)10.1002/chem.201806417 (DOI)000460692100013 ()30688380 (PubMedID)
Funder
ÅForsk (Ångpanneföreningen's Foundation for Research and Development), 18-413
Available from: 2019-01-29 Created: 2019-01-29 Last updated: 2019-04-12Bibliographically approved
Åkerlund, L., Emanuelsson, R., Hernández, G., Ruipérez, F., Casado, N., Brandell, D., . . . Sjödin, M. (2019). In situ Investigations of a Proton Trap Material: A PEDOT-Based Copolymer with Hydroquinone and Pyridine Side Groups Having Robust Cyclability in Organic Electrolytes and Ionic Liquids. ACS Applied Energy Materials, 2(6), 4486-4495
Open this publication in new window or tab >>In situ Investigations of a Proton Trap Material: A PEDOT-Based Copolymer with Hydroquinone and Pyridine Side Groups Having Robust Cyclability in Organic Electrolytes and Ionic Liquids
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2019 (English)In: ACS Applied Energy Materials, ISSN 2574-0962, Vol. 2, no 6, p. 4486-4495Article in journal (Refereed) Published
Abstract [en]

A conducting redox polymer based on PEDOT with hydroquinone and pyridine pendant groups is reported and characterized as a proton trap material. The proton trap functionality, where protons are transferred from the hydroquinone to the pyridine sites, allows for utilization of the inherently high redox potential of the hydroquinone pendant group (3.3 V versus Li0/+) and sustains this reaction by trapping the protons within the polymer, resulting in proton cycling in an aprotic electrolyte. By disconnecting the cycling ion of the anode from the cathode, the choice of anode and electrolyte can be extensively varied and the proton trap copolymer can be used as cathode material for all-organic or metal-organic batteries. In this study, a stable and nonvolatile ionic liquid was introduced as electrolyte media, leading to enhanced cycling stability of the proton trap compared to cycling in acetonitrile, which is attributed to the decreased basicity of the solvent. Various in situ methods allowed for in-depth characterization of the polymer’s properties based on its electronic transitions (UV–vis), temperature-dependent conductivity (bipotentiostatic CV-measurements), and mass change (EQCM) during the redox cycle. Furthermore, FTIR combined with quantum chemical calculations indicate that hydrogen bonding interactions are present for all the hydroquinone and quinone states, explaining the reversible behavior of the copolymer in aprotic electrolytes, both in three-electrode setup and in battery devices. These results demonstrate the proton trap concept as an interesting strategy for high potential organic energy storage materials.

Keywords
conducting redox polymer, organic electronics, renewable energy storage, proton trap, quinone, in situ
National Category
Nano Technology
Research subject
Engineering Science with specialization in Nanotechnology and Functional Materials
Identifiers
urn:nbn:se:uu:diva-389514 (URN)10.1021/acsaem.9b00735 (DOI)000473116600063 ()
Funder
SweGRIDS - Swedish Centre for Smart Grids and Energy StorageSwedish Energy AgencyCarl Tryggers foundation , CTS 17:414Stiftelsen Olle Engkvist ByggmästareSwedish Research Council Formas, 2018-00744Swedish Research Council Formas, 2016-00838
Available from: 2019-07-16 Created: 2019-07-16 Last updated: 2019-09-13Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-5496-9664

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