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Petrović J, Pan XH, Talip Z, Zu JH, Cvjetinović Đ. Rhodium recovery from acidic wastewater using radiografted chelating adsorbents. CHEMOSPHERE 2025; 374:144240. [PMID: 39985999 DOI: 10.1016/j.chemosphere.2025.144240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2024] [Revised: 01/19/2025] [Accepted: 02/16/2025] [Indexed: 02/24/2025]
Abstract
This study explores the effectiveness of radiografted chelating adsorbents for the recovery of rhodium (Rh) from acidic wastewater, focusing on functionalized materials with and without loaded silver (Ag). Platinum group metals (PGMs), particularly Rh, are essential yet rare, necessitating efficient recovery methods from industrial waste. Rh exhibits complex chemistry in acidic environments, often complicating its extraction and recovery. Traditional methods such as solvent extraction and ion exchange adsorption have limitations, prompting the development of alternative recovery methods. The adsorption efficiency of these materials was evaluated in a wide range of hydrochloric acid (HCl) concentrations, both in static and dynamic conditions. Radiotracer 101Rh was used to track and quantify Rh adsorption. Results show that the radiografted chelating adsorbents exhibit high distribution coefficients (Kd, LogKd ≈ 3) and high adsorption capacities (Qc > 74 mg/g), comparable or superior to commercial resins, particularly under varying pH conditions. Selective recovery of Rh was achieved even in the conditions of extreme competition (with additional 21 metal ions). Therefore, amine and amide-based adsorbents presented in this study could offer a sustainable and inexpensive alternative to standard methods of Rh recovery from industrial waste.
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Affiliation(s)
- Jelena Petrović
- Laboratory of Radiochemistry, Paul Scherrer Institut (PSI), Forschungsstrasse 111, Villigen, 5232, Switzerland; Vinča Institute of Nuclear Sciences - National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12-14, Belgrade, 11351, Serbia
| | - Xiao-Han Pan
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zeynep Talip
- Laboratory of Radiochemistry, Paul Scherrer Institut (PSI), Forschungsstrasse 111, Villigen, 5232, Switzerland
| | - Jian-Hua Zu
- School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Đorđe Cvjetinović
- Laboratory of Radiochemistry, Paul Scherrer Institut (PSI), Forschungsstrasse 111, Villigen, 5232, Switzerland.
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2
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Lou Y, Xi J, Meng L, Yan Z, Deng W, Bian H, Xiao H, Wu W. High-permeance nanocellulose/ZnO hybrid membranes with photo-induced anti-fouling performance for wastewater purification. Carbohydr Polym 2025; 348:122807. [PMID: 39562082 DOI: 10.1016/j.carbpol.2024.122807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Revised: 09/14/2024] [Accepted: 09/24/2024] [Indexed: 11/21/2024]
Abstract
A hybrid ultrafiltration membrane based on nanocellulose and zinc oxide nanoparticles (ZnO NPs) was prepared by simple layered filtration without any chemical modification. Microscopic morphology analysis showed that the loading ZnO NPs significantly increased the membrane roughness, and wettability test demonstrated that the membrane surface possessed underwater superoleophobicity. Due to the "puncture effect" of the embedded ZnO NPs, abundant nanochannels were formed in the nanocellulose membrane and the highest water permeance of 5439.7 L·m-2·h-1·bar-1 was achieved. The hybrid membranes exhibited high rejection of nanoparticles larger than 20 nm and macromolecules with molecular weights higher than 100 kDa. Furthermore, ZnO NPs significantly improved the wet tensile strength of membrane. The hybrid membranes achieved high separation efficiency of nano-sized emulsions via size exclusion and demulsification effect, as well as the efficient removal of organic dyes and antibiotics via filtration-adsorption. The combination of underwater superoleophobicity and photocatalytic self-cleaning performance effectively solved the problem of a sharp decrease in permeance caused by oil contamination. This type of nanocellulose/ZnO hybrid membrane, which integrates high permeance, high filtration accuracy, and photocatalytic anti-fouling performance in one design, offers an innovative approach to the preparation of nanocellulose membranes for the treatment of organic wastewater.
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Affiliation(s)
- Yanling Lou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Jianfeng Xi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
| | - Liucheng Meng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Zifei Yan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Wen Deng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Huiyang Bian
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Huining Xiao
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Weibing Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China.
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Trzciński S, Brzezinska J, Waligórski K, Strzelec J, Kolet K, Klarek M, Kołacki O, Chmielewski MK. Hybrid Supports for Oligonucleotide Synthesis: Controlled Pore Glass Derivatives with Branched Amine-Ended Polyether or Polyimine. Chemistry 2024; 30:e202403086. [PMID: 39535441 DOI: 10.1002/chem.202403086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2024] [Revised: 10/21/2024] [Accepted: 11/08/2024] [Indexed: 11/16/2024]
Abstract
Controlled pore glass (CPG), differing in pore size and subsequent specific surface, was chemically modified by: (1) increasing surface susceptibility for amine functionalization via reaction with oxirane-type (active) and alkyl/aryl-type (inactive towards amine compounds) silane pro-adhesive compounds, and (2) immobilization of trimethylolpropane tris[poly(propylene glycol), amine terminated] ether, comb-like 8-arm octa[poly(ethylene glycol) amine] with each branch amine terminated, and a poly(propylene imine) amine-terminated second-generation dendrimer. The increase in surface density of amine functions - monitored by UV-Vis technique adopted for quantitative measurements of Ruhemann's purple intensity - improved final loading capacity, characterized by dimethoxytrityl cation absorption. Obtained materials proved their applicability in automatic oligonucleotide (ON) synthesis, especially when silanized 2000 Å CPG modified with 8-arm octa[poly(ethylene glycol) amine], with deduced empirical formula CPG - silane - (NH)6.4PEG-(NH2)1.6, was used for long-chain (150 nucleotides) ONs synthesis. This can be regarded as a good CPG support for this purpose. Moreover, hybrid supports with different porosity allowed the synthesis of shorter ONs with satisfactory yield and purity, monitored by RP-HPLC and MALDI-TOF. On the molecular level, two competitive mechanisms seem to influence the utility of the final hybrid support: spatial availability of active sites and the propensity of the functionalizer to bond with the CPG surface.
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Affiliation(s)
- Stanisław Trzciński
- Department of Biopolymer Chemistry, Institute of Bioorganic Chemistry, Polish Academy of Sciences, ul. Noskowskiego 12/14, 61-704, Poznań, Poland
| | - Jolanta Brzezinska
- Department of Biopolymer Chemistry, Institute of Bioorganic Chemistry, Polish Academy of Sciences, ul. Noskowskiego 12/14, 61-704, Poznań, Poland
| | | | - Joanna Strzelec
- Department of Biopolymer Chemistry, Institute of Bioorganic Chemistry, Polish Academy of Sciences, ul. Noskowskiego 12/14, 61-704, Poznań, Poland
| | - Katarzyna Kolet
- FutureSynthesis sp.z o.o., ul. Rubież 46B, 61-612, Poznań, Poland
| | - Mateusz Klarek
- Department of Biopolymer Chemistry, Institute of Bioorganic Chemistry, Polish Academy of Sciences, ul. Noskowskiego 12/14, 61-704, Poznań, Poland
| | - Oskar Kołacki
- Department of Biopolymer Chemistry, Institute of Bioorganic Chemistry, Polish Academy of Sciences, ul. Noskowskiego 12/14, 61-704, Poznań, Poland
| | - Marcin K Chmielewski
- Department of Biopolymer Chemistry, Institute of Bioorganic Chemistry, Polish Academy of Sciences, ul. Noskowskiego 12/14, 61-704, Poznań, Poland
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Sanoja-López KA, Quiroz-Suárez KA, Dueñas-Rivadeneira AA, Maddela NR, Montenegro MCBSM, Luque R, Rodríguez-Díaz JM. Polymeric membranes functionalized with nanomaterials (MP@NMs): A review of advances in pesticide removal. ENVIRONMENTAL RESEARCH 2023; 217:114776. [PMID: 36403656 DOI: 10.1016/j.envres.2022.114776] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
The excessive contamination of drinking water sources by pesticides has a pernicious impact on human health and the environment since only 0.1% of pesticides is utilized effectively to control the and the rest is deposited in the environment. Filtration by polymeric membranes has become a promising technique to deal with this problem; however, the scientific community, in the need to find better pesticide retention results, has begun to meddle in the functionalization of polymeric membranes. Given the great variety of membrane, polymer, and nanomaterial synthesis methods present in the market, the possibilities of obtaining membranes that adjust to different variables and characteristics related to a certain pesticide are relatively extensive, so it is expected that this technology will represent one of the main pesticide removal strategies in the future. In this direction, this review focused on, - the main characteristics of the nanomaterials and their impact on pristine polymeric membranes; - the removal performance of functionalized membranes; and - the main mechanisms by which membranes can retain pesticides. Based on these insights, the functionalized polymeric membranes can be considered as a promising technology in the removal of pesticides since the removal performance of this technology against pesticide showed a significant increase. Obtaining membranes that adjust to different variables and characteristics related to a certain pesticide are relatively extensive, so it is expected that functionalized membrane technology will represent one of the main pesticide removal strategies in the future.
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Affiliation(s)
- Kelvin Adrian Sanoja-López
- Departamento de Procesos Químicos, Facultad de Ciencias Matemáticas, Físicas y Químicas, Universidad Técnica de Manabí, Portoviejo, Manabí, 130104, Ecuador; Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo, Manabí, 130104, Ecuador.
| | - Kevin Alberto Quiroz-Suárez
- Departamento de Procesos Químicos, Facultad de Ciencias Matemáticas, Físicas y Químicas, Universidad Técnica de Manabí, Portoviejo, Manabí, 130104, Ecuador; Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo, Manabí, 130104, Ecuador.
| | - Alex Alberto Dueñas-Rivadeneira
- Departamento de Procesos Agroindustriales, Facultad de Ciencias Zootécnicas, Universidad Técnica de Manabí, Portoviejo, Manabí, 130104, Ecuador.
| | - Naga Raju Maddela
- Departamento de Ciencias Biológicas, Facultad de Ciencias de La Salud, Universidad Técnica de Manabí, Portoviejo, 130105, Ecuador.
| | - Maria C B S M Montenegro
- LAQV-REQUIMTE/Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, R. Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal.
| | - Rafael Luque
- Departamento de Química Orgánica, Universidad de Cordoba, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, E14014, Cordoba, Spain; Peoples Friendship University of Russia (RUDN University), 6 Miklukho Maklaya str., 117198, Moscow, Russian Federation.
| | - Joan Manuel Rodríguez-Díaz
- Departamento de Procesos Químicos, Facultad de Ciencias Matemáticas, Físicas y Químicas, Universidad Técnica de Manabí, Portoviejo, Manabí, 130104, Ecuador; Laboratorio de Análisis Químicos y Biotecnológicos, Instituto de Investigación, Universidad Técnica de Manabí, Portoviejo, Manabí, 130104, Ecuador.
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5
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Zhang Y, Wang X, Ayman E, Zhao Q, Wang Y, Gao Z, Gong G. Mussel-inspired graphene oxide-based mixed matrix membranes for improving permeability and antifouling property. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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6
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Tunable hydrophobicity and roughness on PVDF surface by grafting to mode – Approach to enhance membrane performance in membrane distillation process. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Al-Gharabli S, Abu El-Rub Z, Hamad E, Kujawski W, Flanc Z, Pianka K, Kujawa J. Surfaces with Adjustable Features-Effective and Durable Materials for Water Desalination. Int J Mol Sci 2021; 22:ijms222111743. [PMID: 34769183 PMCID: PMC8583984 DOI: 10.3390/ijms222111743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
Materials based on PVDF with desirable and controllable features were successfully developed. The chemistry and roughness were adjusted to produce membranes with improved transport and separation properties. Membranes were activated using the novel piranha approach to generate OH-rich surfaces, and finally furnished with epoxy and long-alkyl moieties via stable covalent attachment. The comprehensive materials characterization provided a broad spectrum of data, including morphology, textural, thermal properties, and wettability features. The defined materials were tested in the air-gap membrane distillation process for desalination, and improvement compared with pristine PVDF was observed. An outstanding behavior was found for the PVDF sample equipped with long-alkyl chains. The generated membrane showed an enhancement in the transport of 58-62% compared to pristine. A relatively high contact angle of 148° was achieved with a 560 nm roughness, producing a highly hydrophobic material. On the other hand, it was possible to tone the hydrophobicity and significantly reduce adhesion work. All materials were highly stable during the long-lasting separation process and were characterized by excellent effectiveness in water desalination.
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Affiliation(s)
- Samer Al-Gharabli
- Pharmaceutical and Chemical Engineering Department, German Jordanian University, Amman 11180, Jordan;
- Correspondence: (S.A.-G.); (J.K.); Tel./Fax: +962-6-429-4404 (S.A.-G.); +48-56-611-43-15 (J.K.); Fax: +48-56-611-45-26 (J.K.)
| | - Ziad Abu El-Rub
- Pharmaceutical and Chemical Engineering Department, German Jordanian University, Amman 11180, Jordan;
| | - Eyad Hamad
- Biomedical Engineering Department, German Jordanian University, Amman 11180, Jordan;
| | - Wojciech Kujawski
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland; (W.K.); (Z.F.); (K.P.)
| | - Zuzanna Flanc
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland; (W.K.); (Z.F.); (K.P.)
| | - Katarzyna Pianka
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland; (W.K.); (Z.F.); (K.P.)
| | - Joanna Kujawa
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, 7 Gagarina Street, 87-100 Toruń, Poland; (W.K.); (Z.F.); (K.P.)
- Correspondence: (S.A.-G.); (J.K.); Tel./Fax: +962-6-429-4404 (S.A.-G.); +48-56-611-43-15 (J.K.); Fax: +48-56-611-45-26 (J.K.)
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Saldías C, Terraza CA, Leiva A, Koschikowski J, Winter D, Tundidor-Camba A, Martin-Trasanco R. PVDF Composite Membranes with Hydrophobically-Capped CuONPs for Direct-Contact Membrane Distillation. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1497. [PMID: 34198766 PMCID: PMC8227552 DOI: 10.3390/nano11061497] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 05/25/2021] [Accepted: 05/29/2021] [Indexed: 11/16/2022]
Abstract
Water scarcity is an imminent problem that humanity is beginning to attempt to solve. Among the several technologies that have been developed to mitigate water scarcity, membrane distillation is of particular note. In the present work, CuO nanoparticles capped with 1-octanethiol (CuONPs@CH) or 1H,1H,2H,2H-perfluorodecanethiol (CuONPs@CF) are prepared. The nanoparticles are characterized by FT-IR and TGA methods. Two weight losses are observed in both cases, with the decomposition of the organic fragments beginning at 158 °C and 230 °C for CuONPs@CF and CuONPs@CH, respectively. Flat sheet PVDF composite membranes containing nanoparticles are prepared by the casting solution method using nanoparticle concentrations that ranged between 2-20% with a non-woven polyester fabric as support. The obtained membranes showed a thickness of 240 ± 40 μm. According to water contact angle (87° for CuONPs@CH and 95° for CuONPs@CF, both at 10% w.t) and roughness (12 pixel for CuONPs@CH and 14 pixels for CuONPs@CF, both at 10% w.t) determinations, the hydrophobicity of membranes changed due to a decrease in surface energy, while, for naked CuONPs, the roughness factor represents the main role. Membranes prepared with capped nanoparticles showed similar porosity (60-64%). SEM micrographs show asymmetric porous membranes with a 200-nm surface pore diameter. The largest finger-like pores in the membranes prepared with CuONPs, CuONPs@CH and CuONPs@CF had values of 63 ± 10 μm, 32 ± 8 μm, and 45 ± 10 μm, respectively. These membranes were submitted to a direct contact membrane distillation module and flux values of 1.8, 2.7, and 3.9 kg(m2·h)-1 at ΔT = 30 °C were obtained for the CuONPs, CuONPs@CH, and CuONPs@CF, respectively. The membranes showed 100% salt rejection during the testing time (240 min).
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Affiliation(s)
- César Saldías
- Department of Physical Chemistry, Faculty of Chemistry and of Pharmacy, Pontificia Universidad Católica de Chile, P.O. Box 306, Post 22, Santiago 7820436, Chile; (C.S.); (A.L.)
| | - Claudio A. Terraza
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of Pharmacy, Pontificia Universidad Católica de Chile, P.O. Box 306, Post 22, Santiago 7820436, Chile;
- UC Energy Research Center, Pontificia Universidad Católica de Chile, P.O. Box 306, Post 22, Santiago 7820436, Chile
| | - Angel Leiva
- Department of Physical Chemistry, Faculty of Chemistry and of Pharmacy, Pontificia Universidad Católica de Chile, P.O. Box 306, Post 22, Santiago 7820436, Chile; (C.S.); (A.L.)
| | - Joachim Koschikowski
- Fraunhofer Institute for Solar Energy Systems (ISE), 79110 Freiburg, Germany; (J.K.); (D.W.)
| | - Daniel Winter
- Fraunhofer Institute for Solar Energy Systems (ISE), 79110 Freiburg, Germany; (J.K.); (D.W.)
| | - Alain Tundidor-Camba
- Research Laboratory for Organic Polymers (RLOP), Faculty of Chemistry and of Pharmacy, Pontificia Universidad Católica de Chile, P.O. Box 306, Post 22, Santiago 7820436, Chile;
- UC Energy Research Center, Pontificia Universidad Católica de Chile, P.O. Box 306, Post 22, Santiago 7820436, Chile
| | - Rudy Martin-Trasanco
- Departamento de Química, Universidad Tecnológica Metropolitana, Las Palmeras 3360, Santiago 8940577, Chile
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Al-Gharabli S, Kujawa J. Molecular activation of fluoropolymer membranes via base piranha treatment to enhance transport and mitigate fouling – new materials for water purification. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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10
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Al-Gharabli S, Al-Omari B, Kujawski W, Kujawa J. How Can the Desert Beetle and Biowaste Inspire Hybrid Separation Materials for Water Desalination? ACS APPLIED MATERIALS & INTERFACES 2021; 13:11268-11283. [PMID: 33645982 PMCID: PMC8031369 DOI: 10.1021/acsami.0c21649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
Highly effective, hybrid separation materials for water purification were generated following a bioinspired system available in nature. The desert beetle was the inspiration for the generation of separation materials. Using the hydrophobic poly(vinylidene fluoride) (PVDF) membrane as the basis, the membrane was first activated and then furnished with silane-based linkers, and the covalent anchoring of chitosan was successfully accomplished. The obtained surface architecture was a copy of the desert beetle's armor possessing a hydrophobic matrix with hydrophilic domains. The modification was done in the presence or the lack of catalyst (N,N-diisopropylethylamine) that made it possible to tune easily wettability, roughness, and material as well as adhesive features. The membrane morphology and surface chemistry were studied by applying a series of analytical techniques. As a result of chitosan attachment, substantial improvement in transport and separation was reported. Pristine PVDF was characterized by a water flux of 5.28 kg m-2 h-1 and an activation energy of 48.16 kJ mol-1. The water flux and activation energy for a hybrid membrane with chitosan were equal to 15.55 kg m-2 h-1 and 33.98 kJ mol-1, respectively. The hybrid materials possessed enhanced stability and water resistance that were maintained after 10 cycles of membrane distillation tests.
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Affiliation(s)
- Samer Al-Gharabli
- Pharmaceutical
and Chemical Engineering Department, German
Jordanian University, Amman 11180, Jordan
| | - Bana Al-Omari
- Pharmaceutical
and Chemical Engineering Department, German
Jordanian University, Amman 11180, Jordan
| | - Wojciech Kujawski
- Faculty
of Chemistry, Nicolaus Copernicus University
in Toruń, 7 Gagarina
Street, Toruń 87-100, Poland
| | - Joanna Kujawa
- Faculty
of Chemistry, Nicolaus Copernicus University
in Toruń, 7 Gagarina
Street, Toruń 87-100, Poland
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11
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Detection of Gadolinium with an Impedimetric Platform Based on Gold Electrodes Functionalized by 2-Methylpyridine-Substituted Cyclam. SENSORS 2021; 21:s21051658. [PMID: 33670860 PMCID: PMC7957611 DOI: 10.3390/s21051658] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/13/2021] [Accepted: 02/24/2021] [Indexed: 11/17/2022]
Abstract
Gadolinium is extensively used in pharmaceuticals and is very toxic, so its sensitive detection is mandatory. This work presents the elaboration of a gadolinium chemical sensor based on 2-methylpyridine-substituted cyclam thin films, deposited on gold electrodes, using electrochemical impedance spectroscopy (EIS). The 2-methylpyridine-substituted cyclam (bis-N-MPyC) was synthesized in three steps, including the protection of cyclam by the formation of its CH2-bridged aminal derivative; the product was characterized by liquid 1H and 13C NMR spectroscopy. Spin-coated thin films of bis-N-MPyC on gold wafers were characterized by means of infrared spectroscopy in ATR (Attenuated Total Reflectance) mode, contact angle measurements and atomic force microscopy. The impedimetric chemical sensor was studied in the presence of increasing concentrations of lanthanides (Gd3+, Eu3+, Tb3+, Dy3+). Nyquist plots were fitted with an equivalent electrical circuit including two RC circuits in series corresponding to the bis-N-MPyC film and its interface with the electrolyte. The main parameter that varies with gadolinium concentration is the resistance of the film/electrolyte interface (Rp), correlated to the rate of exchange between the proton and the lanthanide ion. Based on this parameter, the detection limit obtained is 35 pM. The bis-N-MPyC modified gold electrode was tested for the detection of gadolinium in spiked diluted negative urine control samples.
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Qing W, Wang J, Ma X, Yao Z, Feng Y, Shi X, Liu F, Wang P, Tang CY. One-step tailoring surface roughness and surface chemistry to prepare superhydrophobic polyvinylidene fluoride (PVDF) membranes for enhanced membrane distillation performances. J Colloid Interface Sci 2019; 553:99-107. [PMID: 31200232 DOI: 10.1016/j.jcis.2019.06.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/22/2019] [Accepted: 06/04/2019] [Indexed: 11/15/2022]
Abstract
Superhydrophobic polyvinylidene fluoride (PVDF) membrane is a promising material for membrane distillation. Existing approaches for preparing superhydrophobic PVDF membrane often involve separate manipulation of surface roughness and surface chemistry. Here we report a one-step approach to simultaneously manipulate both the surface roughness and surface chemistry of PVDF nanofibrous membranes for enhanced direct-contact membrane distillation (DCMD) performances. The manipulation was realized in a unique solvent-thermal treatment process, during which a treatment solution containing alcohols was involved. We demonstrate that by using different chain-length alcohols in the treatment solvent, surface roughness can be promoted by creating nanofin structures on the PVDF nanofibers using an alcohol which has moderate affinity with PVDF. Meanwhile, surface chemistry can be tuned by adjusting the fraction distribution of crystal phases (nonpolar α phase and polar β phase) in the membrane using different alcohols. PVDF membranes with different surface wettabilities were used to evaluate the effects of surface roughness and surface energy on the DCMD performances. Combining both low surface energy and multi-scale surface roughness, pentanol-treated PVDF membrane achieved best anti-water property (water contact angle of 164.1° and sliding angle of 8.1°), and exhibited superior water flux and enhanced anti-wetting ability to low-surface-tension feed in the DCMD application.
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Affiliation(s)
- Weihua Qing
- Department of Civil Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong
| | - Jianqiang Wang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong; Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xiaohua Ma
- Department of Civil Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong; Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhikan Yao
- Department of Civil Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong
| | - Yong Feng
- Department of Civil Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong
| | - Xiaonan Shi
- Department of Civil Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong
| | - Fu Liu
- Key Laboratory of Marine Materials and Related Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Peng Wang
- Water Desalination and Reuse Center, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Chuyang Y Tang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam 999077, Hong Kong.
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Liu C, Wang W, Li Y, Cui F, Xie C, Zhu L, Shan B. PMWCNT/PVDF ultrafiltration membranes with enhanced antifouling properties intensified by electric field for efficient blood purification. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.01.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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14
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Antimicrobial and photophysical properties of chemically grafted ultra-high-molecular-weight polyethylene. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:479-486. [PMID: 30606557 DOI: 10.1016/j.msec.2018.11.066] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 11/16/2018] [Accepted: 11/27/2018] [Indexed: 02/03/2023]
Abstract
Surface of ultra-high-molecular-weight polyethylene (UHMWPE) was modified by chemical methods. Surface was firstly activated by Piranha solution and then grafted with selected amino-compounds (cysteamine, ethylenediamine or chitosan). The next step was grafting of some borane cluster compounds, highly fluorescent borane hydride cluster anti-B18H22 or its thiolated derivative 4,4'-(HS)2-anti-B18H20. Polymer foils were studied using various methods to characterize surface chemistry (X-ray photoelectron spectroscopy), roughness and morphology (atomic force microscopy, scanning electron microscopy), chemistry and polarity (electrokinetic analysis), wettability (goniometry) and photophysical properties (UV-Vis spectroscopy) before and after modification steps. Subsequently some kinds of antimicrobial tests were performed. Immobilization of anti-B18H22 in small quantities onto UHMWPE surface leads to materials with a luminescence. Samples grafted with borane clusters showed significant inhibition of growth for gram-positive bacteria (S. epidermidis). These approaches can be used for (i) luminophores on the base of polymers nanocomposites development and/or (ii) preparation of materials with antimicrobial effects.
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Terki L, Kujawski W, Kujawa J, Kurzawa M, Filipiak-Szok A, Chrzanowska E, Khaled S, Madani K. Implementation of osmotic membrane distillation with various hydrophobic porous membranes for concentration of sugars solutions and preservation of the quality of cactus pear juice. J FOOD ENG 2018. [DOI: 10.1016/j.jfoodeng.2018.02.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Al-Gharabli S, Kujawski W, El-Rub ZA, Hamad EM, Kujawa J. Enhancing membrane performance in removal of hazardous VOCs from water by modified fluorinated PVDF porous material. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2018.04.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Dossin Zanrosso C, Piazza D, Azário Lansarin M. Polymeric hybrid films with photocatalytic activity under visible light. J Appl Polym Sci 2018. [DOI: 10.1002/app.46367] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Crissie Dossin Zanrosso
- Federal University of Rio Grande do Sul, R. Ramiro Barcelos 2777; Porto Alegre RS 90035-007 Brazil
| | - Diego Piazza
- University of Caxias do Sul, R. Francisco Getúlio Vargas 1130; Caxias do Sul RS 95070-560 Brazil
| | - Marla Azário Lansarin
- Federal University of Rio Grande do Sul, R. Ramiro Barcelos 2777; Porto Alegre RS 90035-007 Brazil
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