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Karunattu Sajan M, Kirubalan MR, Rajendran AS, Natesan ALF. Exploring the effective adsorption of polystyrene microplastics from aqueous solution with magnetically separable nickel/reduced graphene oxide (Ni/rGO) nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:38099-38116. [PMID: 38795296 DOI: 10.1007/s11356-024-33726-8] [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: 10/17/2023] [Accepted: 05/15/2024] [Indexed: 05/27/2024]
Abstract
Microplastics (MPs) are a potential threat to both humans and aquatic environment as they serve as carriers of various contaminants necessitating the development of reliable, efficient, and ecofriendly techniques to remove MPs from water. In this study, reduced graphene oxide (rGO) magnetized using nickel nanoparticles was utilized as a potent adsorbent for the effective removal of microplastics from water. The synthesized nickel/reduced graphene oxide (Ni/rGO) nanocomposite was characterized by X-ray diffraction (XRD), Raman spectra, vibrating sample magnetometer (VSM), scanning electron microscopy-energy-dispersive X-ray analysis (SEM-EDX), thermogravimetric analysis, and Brunauer-Emmett Teller (BET) analysis. Magnetic Ni/rGO nanocomposite exhibited significant adsorption capability for polystyrene (PS) microspheres allowing the formation of PS-Ni/rGO complex which can be easily separated out using a magnet. The SEM images of PS-Ni/rGO complex confirmed the adsorption of PS microspheres onto the nano adsorbent due to hydrophobic interaction. The adsorbent demonstrated a maximum adsorption capacity of 1250 mg/g. The analysis of isotherm and kinetic models demonstrated that the adsorption mechanism conformed to the Langmuir isotherm and followed pseudo second order kinetics. This study paves a new pathway for the application of magnetically modified reduced graphene oxide for the expedient removal of microplastics from water with the ease of separation using a magnet. The adsorbent was recycled and reused for three times.
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Affiliation(s)
- Merija Karunattu Sajan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603203, India
| | - Mani Rahulan Kirubalan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603203, India
| | - Annie Sujatha Rajendran
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603203, India
| | - Angeline Little Flower Natesan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu, 603203, India.
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Misra SK, Ye M, Moitra P, Dighe K, Sharma A, Daza EA, Schwartz-Duval AS, Ostadhossein F, Pan D. Synthesis of an enediyne carbon-allotrope surface for photo-thermal degradation of DNA. Chem Commun (Camb) 2023; 59:13434-13437. [PMID: 37847141 DOI: 10.1039/d3cc03353h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
The improper disposal of hospital waste products containing genetic materials poses a serious safety threat. We present herein an environmentally friendly technology using a graphene-based novel carbon-allotropic surface to remediate such wastes. The used carbon-allotrope is decorated with an enediyne (EDE-1) enriched aromatic pi-conjugated structure to create an efficient and active surface for cleaving DNA strands. Under controlled exposure of ultraviolet (UV) radiation and heat, the developed surface influences genetic degradation without disturbing the bacterial populations present downstream of the water treatment system. The designed material has been extensively characterized using physicochemical and biological tools. Our results indicate that this approach can possibly be introduced in large scale hospital waste disposal streams for remediating genetic hazards and thereby developing a portable self-contained system.
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Affiliation(s)
- Santosh K Misra
- Departments of Bioengineering, Materials Science and Engineering, Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Biomedical Research Center, Carle Foundation Hospital, Urbana, IL, 61801, USA
| | - Mao Ye
- Departments of Bioengineering, Materials Science and Engineering, Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Biomedical Research Center, Carle Foundation Hospital, Urbana, IL, 61801, USA
| | - Parikshit Moitra
- Department of Nuclear Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ketan Dighe
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Abhinav Sharma
- Departments of Bioengineering, Materials Science and Engineering, Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
| | - Enrique A Daza
- Departments of Bioengineering, Materials Science and Engineering, Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Biomedical Research Center, Carle Foundation Hospital, Urbana, IL, 61801, USA
| | - Aaron S Schwartz-Duval
- Departments of Bioengineering, Materials Science and Engineering, Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Biomedical Research Center, Carle Foundation Hospital, Urbana, IL, 61801, USA
| | - Fatemeh Ostadhossein
- Departments of Bioengineering, Materials Science and Engineering, Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Biomedical Research Center, Carle Foundation Hospital, Urbana, IL, 61801, USA
| | - Dipanjan Pan
- Departments of Bioengineering, Materials Science and Engineering, Beckman Institute for Advanced Science & Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Biomedical Research Center, Carle Foundation Hospital, Urbana, IL, 61801, USA
- Department of Nuclear Engineering, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA 16802, USA
- Huck Institutes of the Life Sciences, 101 Huck Life Sciences Building, University Park, PA 16802, USA
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Zahedipoor A, Faramarzi M, Mansourizadeh A, Ghaedi A, Emadzadeh D. Integration of Porous Nanomaterial-Infused Membrane in UF/FO Membrane Hybrid for Simulated Osmosis Membrane Bioreactor (OsMBR) Process. MEMBRANES 2023; 13:577. [PMID: 37367781 DOI: 10.3390/membranes13060577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/23/2023] [Accepted: 05/28/2023] [Indexed: 06/28/2023]
Abstract
This study explored the use of a combination of hydrothermal and sol-gel methods to produce porous titanium dioxide (PTi) powder with a high specific surface area of 112.84 m2/g. The PTi powder was utilized as a filler in the fabrication of ultrafiltration nanocomposite membranes using polysulfone (PSf) as the polymer. The synthesized nanoparticles and membranes were analyzed using various techniques, including BET, TEM, XRD, AFM, FESEM, FTIR, and contact angle measurements. The membrane's performance and antifouling properties were also assessed using bovine serum albumin (BSA) as a simulated wastewater feed solution. Furthermore, the ultrafiltration membranes were tested in the forward osmosis (FO) system using a 0.6-weight-percent solution of poly (sodium 4-styrene sulfonate) as the osmosis solution to evaluate the osmosis membrane bioreactor (OsMBR) process. The results revealed that the incorporation of PTi nanoparticles into the polymer matrix enhanced the hydrophilicity and surface energy of the membrane, resulting in better performance. The optimized membrane containing 1% PTi displayed a water flux of 31.5 L/m2h, compared to the neat membrane water value of 13.7 L/m2h. The membrane also demonstrated excellent antifouling properties, with a flux recovery of 96%. These results highlight the potential of the PTi-infused membrane as a simulated osmosis membrane bioreactor (OsMBR) for wastewater treatment applications.
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Affiliation(s)
- Ahmadreza Zahedipoor
- Department of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch, Islamic Azad University, Gachsaran P.O. Box 75818-63876, Iran
| | - Mehdi Faramarzi
- Department of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch, Islamic Azad University, Gachsaran P.O. Box 75818-63876, Iran
| | - Amir Mansourizadeh
- Department of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch, Islamic Azad University, Gachsaran P.O. Box 75818-63876, Iran
| | - Abdolmohammad Ghaedi
- Department of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran P.O. Box 75818-63876, Iran
| | - Daryoush Emadzadeh
- Department of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch, Islamic Azad University, Gachsaran P.O. Box 75818-63876, Iran
- Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, ON K1N 6N5, Canada
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Popescu M, Ungureanu C. Green Nanomaterials for Smart Textiles Dedicated to Environmental and Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4075. [PMID: 37297209 PMCID: PMC10254517 DOI: 10.3390/ma16114075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Smart textiles recently reaped significant attention owing to their potential applications in various fields, such as environmental and biomedical monitoring. Integrating green nanomaterials into smart textiles can enhance their functionality and sustainability. This review will outline recent advancements in smart textiles incorporating green nanomaterials for environmental and biomedical applications. The article highlights green nanomaterials' synthesis, characterization, and applications in smart textile development. We discuss the challenges and limitations of using green nanomaterials in smart textiles and future perspectives for developing environmentally friendly and biocompatible smart textiles.
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Affiliation(s)
- Melania Popescu
- National Institute for Research and Development in Microtechnologies—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania;
| | - Camelia Ungureanu
- General Chemistry Department, University “Politehnica” of Bucharest, Gheorghe Polizu Street, 1-7, 011061 Bucharest, Romania
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Ding C, Qi H. A Facile Way to Fabricate GO-EDA/Al 2O 3 Tubular Nanofiltration Membranes with Enhanced Desalination Stability via Fine-Tuning the pH of the Membrane-Forming Suspensions. MEMBRANES 2023; 13:membranes13050536. [PMID: 37233596 DOI: 10.3390/membranes13050536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/06/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023]
Abstract
Pristine graphene oxide (GO)-based membranes have proven promising for molecular and ion separation owing to efficient molecular transport nanochannels, but their separation ability in an aqueous environment is limited by the natural swelling tendency of GO. To obtain a novel membrane with anti-swelling behavior and remarkable desalination capability, we used the Al2O3 tubular membrane with an average pore size of 20 nm as the substrate and fabricated several GO nanofiltration ceramic membranes with different interlayer structures and surface charges by fine-tuning the pH of the GO-EDA membrane-forming suspension (pH = 7, 9, 11). The resultant membranes could maintain desalination stability, whether immersed in water for 680 h or operated under a high-pressure environment. When the pH of the membrane-forming suspension was 11, the prepared GE-11 membrane showed a rejection of 91.5% (measured at 5 bar) towards 1 mM Na2SO4 after soaking in water for 680 h. An increase in the transmembrane pressure to 20 bar resulted in an increase in the rejection towards the 1 mM Na2SO4 solution to 96.3%, and an increase in the permeance to 3.7 L·m-2·h-1·bar-1. The proposed strategy in varying charge repulsion is beneficial to the future development of GO-derived nanofiltration ceramic membranes.
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Affiliation(s)
- Chunxiao Ding
- College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Hong Qi
- College of Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
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