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Nusair A, Barber M, Pramanik A, Ethridge C, William C, Alkhateb H, Ucak-Astarlioglu M, Ray PC, D'Alessio M. Graphene-coated sand for enhanced water reuse: Impact on water quality and chemicals of emerging concern. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 945:174078. [PMID: 38906279 DOI: 10.1016/j.scitotenv.2024.174078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/13/2024] [Accepted: 06/15/2024] [Indexed: 06/23/2024]
Abstract
This paper investigates the potential of graphene-coated sand (GCS) as an advanced filtration medium for improving water quality and mitigating chemicals of emerging concern (CECs) in treated municipal wastewater, aiming to enhance water reuse. The study utilizes three types of sand (Ottawa, masonry, and concrete) coated with graphene to assess the impact of surface morphology, particle shape, and chemical composition on coating and filtration efficiency. Additionally, sand coated with graphene and activated graphene coated sand were both tested to understand the effect of coating and activation on the filtration process. The materials were characterized using digital microscopy, Raman spectroscopy, scanning electron microscopy (SEM), and X-ray diffraction analysis. The material's efficiency in removing turbidity, nutrients, chemical oxygen demand (COD), bacteria, and specific CECs (Aciclovir, Diatrizoic acid, Levodopa, Miconazole, Carbamazepine, Diphenhydramine, Irbesartan, Lidocaine, Losartan, and Sulfamethoxazole) was studied. Our findings indicate that GCS significantly improves water quality parameters, with notable efficiency in removing turbidity, COD (14.1 % and 69.1 % removal), and bacterial contaminants (64.9 % and 99.9 % removal). The study also highlights the material's capacity to remove challenging CECs like Sulfamethoxazole (up to 80 % removal) and Diphenhydramine (up to 90 % removal), showcasing its potential as a sustainable solution for water reuse applications. This research contributes to the field by providing a comprehensive evaluation of GCS in water treatment, suggesting its potential for removing CECs from treated municipal wastewater.
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Affiliation(s)
- Abdulla Nusair
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA; Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, USA
| | - Madelyn Barber
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA
| | - Avijit Pramanik
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA
| | - Cheyenne Ethridge
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA
| | - Clinton William
- U.S. Arid Land Agricultural Research Center, Maricopa, AZ 85138, USA
| | - Hunain Alkhateb
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA; Center for Graphene Research and Innovation, University of Mississippi, University, MS 38677, USA
| | | | - Paresh Chandra Ray
- Department of Chemistry and Biochemistry, Jackson State University, Jackson, MS 39217, USA
| | - Matteo D'Alessio
- Department of Civil Engineering, University of Mississippi, Carrier Hall, University, MS 38677, USA.
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Chakraborty N, Sen B, Anindya R, Acharyya SG. Excellent adsorption of toxic Cd (II) ions from water with effective antibacterial activity by novel GO-ZnO-curcumin composite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:51971-51990. [PMID: 39136919 DOI: 10.1007/s11356-024-34685-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 08/07/2024] [Indexed: 09/06/2024]
Abstract
A significant health risk arises from the bioaccumulation of harmful Cd (II) in drinking water. Here, we report the unique Cd (II) remediation from drinking water by using novel GO-ZnO-curcumin composite. The composites were tailored by varying the ratio of GO-ZnO and curcumin. The composites followed Langmuir adsorption isotherm and pseudo-second-order kinetics. ZnO nano-rods were more effective in Cd (II) than ZnO nano-disks. A maximum adsorption capacity of 4580 ± 40 mg/gm was achieved for 21G-B with a removal efficiency of 87.5% at neutral pH under optimized conditions. The removal process was governed by ion exchange and electrostatic attraction, followed by cation exchange capacity (CEC). The lattice parameter increase was detected after adsorption of Cd (II) ions. The regeneration and reusability of the composite was studied. Also, the effect of presence of dyes such as methylene blue on Cd (II) adsorption was noted. The latter had negligible effect on Cd (II) removal efficiency from water. The composite showed high antibacterial activity against B. subtilis and P. aeruginosa with minimum inhibitory concentration (MIC) of 10 ± 0.75 µg/ml and 5 ± 1 µg/ml respectively due to the presence of zinc. Composite stability was confirmed through leaching and thermal gravimetric analysis (TGA) analysis. The study establishes the nanocomposite as a potential material for remediation of hazardous Cd (II) ions from real water samples under neutral conditions.
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Affiliation(s)
- Nabanita Chakraborty
- School of Engineering Sciences and Technology, University of Hyderabad, Telangana, India
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Hyderabad, India
| | - Bratati Sen
- School of Engineering Sciences and Technology, University of Hyderabad, Telangana, India
| | - Roy Anindya
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Hyderabad, India
| | - Swati Ghosh Acharyya
- School of Engineering Sciences and Technology, University of Hyderabad, Telangana, India.
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Mansourian-Tabaei M, Majdoub M, Sengottuvelu D, Stoddard DL, Thirumalai RVKG, Ucak-Astarlioglu MG, Al-Ostaz A, Nouranian S. Polyurea/Aminopropyl Isobutyl Polyhedral Oligomeric Silsesquioxane-Functionalized Graphene Nanoplatelet Nanocomposites for Force Protection Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:19625-19641. [PMID: 38588400 DOI: 10.1021/acsami.4c02244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Herein, the development of new nanocomposite systems is reported based on one-part polyurea (PU) and aminopropyl isobutyl polyhedral oligomeric silsesquioxane (POSS)-functionalized graphene nanoplatelets (GNP-POSS) as compatible nanoreinforcements with the PU resin. GNP-POSS was effectively synthesized via a two-step synthesis protocol, including ultrasonication-assisted reaction and precipitation, and carefully characterized with respect to its chemical and crystalline structure, morphology, and thermal stability. FTIR and XPS spectroscopy analyses revealed that POSS interacts with the residual oxygen moieties of the GNPs through both covalent and noncovalent bonding. The X-ray diffraction pattern of GNP-POSS further revealed that the crystallinity of the GNPs was not altered after their functionalization with POSS. GNP-POSS was successfully incorporated in PU at contents of 1, 3, 5, and 10 wt % to yield PU/GNP-POSS nanocomposite films. An ATR-FTIR analysis of these films confirmed the presence of strong interfacial interactions between the urea groups of PU and the GNP-POSS functionalities. Moreover, the PU/GNP-POSS nanocomposite films exhibited enhanced thermal stability and mechanical properties compared to those of the neat PU film. The quasi-static tensile testing of the PU/GNP-POSS samples revealed remarkable enhancements in the tensile strength (from 7.9 for the neat PU to 25.1 MPa for PU/GNP-POSS) and Young's modulus (238-617 MPa), while elongation at break and toughness also showed 14 and 125% improvements, respectively. Finally, the effects of GNP-POSS content on the morphological, quasistatic tensile, and high-strain-rate dynamic behavior of the PU/GNP-POSS nanocomposite films were also investigated. Overall, the tests performed using a split-Hopkinson pressure bar setup revealed a large increase in the film strength (from 147.6 for the neat PU film to 199 MPa for the PU/GNP-POSS film) and a marginal increase in the energy density of the film (38.1-40.8 kJ/m3). These findings support the suitability of the PU/GNP-POSS nanocomposite films for force protection applications.
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Affiliation(s)
- Mohammad Mansourian-Tabaei
- Department of Chemical Engineering, University of Mississippi, University, Mississippi 38677, United States
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
| | - Mohammed Majdoub
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
| | - Dineshkumar Sengottuvelu
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
| | - Damian L Stoddard
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
- Department of Mechanical Engineering, University of Mississippi, University, Mississippi 38677, United States
| | - Rooban V K G Thirumalai
- Institute for Imaging and Analytical Technologies, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Mine G Ucak-Astarlioglu
- Geotechnical and Structures Laboratory, U.S. Army Engineer Research and Development Center, Vicksburg, Mississippi 39180-6199, United States
| | - Ahmed Al-Ostaz
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
- Department of Civil Engineering, University of Mississippi, University, Mississippi 38677, United States
| | - Sasan Nouranian
- Department of Chemical Engineering, University of Mississippi, University, Mississippi 38677, United States
- Center for Graphene Research and Innovation, University of Mississippi, University, Mississippi 38677, United States
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Lee SE, Carr AJ, Kumal RR, Uysal A. Monovalent ion-graphene oxide interactions are controlled by carboxylic acid groups: Sum frequency generation spectroscopy studies. J Chem Phys 2024; 160:084707. [PMID: 38415831 DOI: 10.1063/5.0189203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 02/05/2024] [Indexed: 02/29/2024] Open
Abstract
Graphene oxide (GO) is a two-dimensional, mechanically strong, and chemically tunable material for separations. Elucidating GO-ion-water interactions at the molecular scale is highly important for predictive understanding of separation systems. However, direct observations of the nanometer region by GO surfaces under operando conditions are not trivial. Therefore, thin films of GO at the air/water interface can be used as model systems. With this approach, we study the effects of alkali metal ions on water organization near graphene oxide films at the air/water interface using vibrational sum frequency generation (SFG) spectroscopy. We also use an arachidic acid Langmuir monolayer as a benchmark for a pure carboxylic acid surface. Theoretical modeling of the concentration-dependent sum frequency signal from graphene oxide and arachidic acid surfaces reveals that the adsorption of monovalent ions is mainly controlled by the carboxylic acid groups on graphene oxide. An in-depth analysis of sum frequency spectra reveals at least three distinct water populations with different hydrogen bonding strengths. The origin of each population can be identified from concentration dependent variations of their SFG signal. Interestingly, an interfacial water structure seemed mostly insensitive to the character of the alkali cation, in contrast to similar studies conducted at the silica/water interface. However, we observed an ion-specific effect with lithium, whose strong hydration prevented direct interactions with the graphene oxide film.
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Affiliation(s)
- Seung Eun Lee
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Amanda J Carr
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Raju R Kumal
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
| | - Ahmet Uysal
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, USA
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Amusat SO, Kebede TG, Nxumalo EN, Dube S, Nindi MM. Facile solvent-free modified biochar for removal of mixed steroid hormones and heavy metals: isotherm and kinetic studies. BMC Chem 2023; 17:158. [PMID: 37986085 PMCID: PMC10662544 DOI: 10.1186/s13065-023-01071-5] [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: 07/07/2023] [Accepted: 10/30/2023] [Indexed: 11/22/2023] Open
Abstract
Water contamination has become a global challenge to human survival. Non-biodegradable heavy metal cations and steroid hormones could accumulate in the human body and could result in serious health problems. In this study, we prepared biochar from waste shells of African star apples and modified biochar using a solvent-free ball milling facile method. The X-ray photoelectron spectrometer (XPS) and Fourier transform infrared spectroscopy (FTIR) analysis revealed biochar functional groups in C=C, C-O, and C=O. Brunauer Emmett Teller (BET) was used to determine the surface area, the surface area of ball-milled biochar obtained at 550 °C (BASA550) increased from 174 m2/g to 304 m2/g after modification. The Langmuir and Freundlich adsorption isotherms best described the experimental adsorption data with RL < 1 and 1/n < 1 and a high degree of agreement of R2 data; Langmuir (R2 = 0.9291-0.9992) and Freundlich (R2 = 0.9077-0.9974). The adsorption kinetic studies using pseudo-first-order and pseudo-second-order models revealed that the pseudo-second-order model accurately described the adsorption process). The application of the BASA550 for treating wastewater samples showed a good percentage of removal. The removal percentage for cadmium, nickel, and lead was recorded as 92.96%, 90.89%, and 90.29%, respectively. The percentage removal in the influent and effluent were found to be 85.06%, 83.87%, 84.73%, and 89.37%, 86.48%, and 87.40%, respectively. The maximum percentage removal of steroid hormones from ultrapure water ranged from 84.20 to 89.63%, while from the spiked effluent and influent the percentage removal of 78.91-87.81% and 73.58-84.51% were obtained. The reusability of the ball-milled biochar was investigated and the result showed that the adsorbent (BASA550) had a good reusability potential for the first four cycles.
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Affiliation(s)
- Sefiu Olaitan Amusat
- Department of Chemistry, College of Science, Engineering, and Technology, University of South Africa, The Science Campus, Florida Park, Corner Christian de Wet & Pioneer Avenue, Florida, 1709, South Africa
| | - Temesgen Girma Kebede
- Department of Chemistry, College of Science, Engineering, and Technology, University of South Africa, The Science Campus, Florida Park, Corner Christian de Wet & Pioneer Avenue, Florida, 1709, South Africa
| | - Edward Ndumiso Nxumalo
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, The Science Campus, University of South Africa, Corner Christian de Wet & Pioneer Avenue, Florida, 1709, South Africa
| | - Simiso Dube
- Department of Chemistry, College of Science, Engineering, and Technology, University of South Africa, The Science Campus, Florida Park, Corner Christian de Wet & Pioneer Avenue, Florida, 1709, South Africa
| | - Mathew Muzi Nindi
- Institute for Nanotechnology and Water Sustainability (iNanoWS), College of Science, Engineering, and Technology, The Science Campus, University of South Africa, Corner Christian de Wet & Pioneer Avenue, Florida, 1709, South Africa.
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Chandran DG, Muruganandam L, Biswas R. A review on adsorption of heavy metals from wastewater using carbon nanotube and graphene-based nanomaterials. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:110010-110046. [PMID: 37804379 DOI: 10.1007/s11356-023-30192-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 09/26/2023] [Indexed: 10/09/2023]
Abstract
The rampant rise in world population, industrialization, and urbanization expedite the contamination of water sources. The presence of the non-biodegradable character of heavy metals in waterways badly affects the ecological balance. In this modern era, the unavailability of getting clear water as well as the downturn in water quality is a major concern. Therefore, the effective removal of heavy metals has become much more important than before. In recent years, the attention to better wastewater remediation was directed towards adsorption techniques with novel adsorbents such as carbon nanomaterials. This review paper primarily emphasizes the fundamental concepts, structures, and unique surface properties of novel adsorbents, the harmful effects of various heavy metals, and the adsorption mechanism. This review will give an insight into the current status of research in the realm of sustainable wastewater treatment, applications of carbon nanomaterials, different types of functionalized carbon nanotubes, graphene, graphene oxide, and their adsorption capacity. The importance of MD simulations and density functional theory (DFT) in the elimination of heavy metals from aqueous media is also discussed. In addition to that, the effect of factors on heavy metal adsorption such as electric field and pressure is addressed.
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Affiliation(s)
- Drisya G Chandran
- Process Simulation Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Loganathan Muruganandam
- Process Simulation Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India
| | - Rima Biswas
- Process Simulation Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, 632014, India.
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Jha AK, Chakraborty S. Environmental Application of Graphene and Its Forms for Wastewater Treatment: a Sustainable Solution Toward Improved Public Health. Appl Biochem Biotechnol 2023; 195:6392-6420. [PMID: 36867385 DOI: 10.1007/s12010-023-04381-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/16/2023] [Indexed: 03/04/2023]
Abstract
Public health is seriously jeopardized in developing countries due to poor sanitation and the presence of persistent pollutants in natural water bodies. Open dumping, wastewater discharge without proper treatment and atmospheric fallout of the organic and inorganic pollutants are the main causes behind the poor condition. Some of the pollutants pose a greater risk due to their toxicity and persistence. Such a class of pollutants are known as chemical contaminants of emerging concern (CECC), including antibiotics and drug residues, endocrine disruptors, pesticides and micro- and nano-plastics. Conventional treatment methods cannot treat them properly and are often associated with several disadvantages. However, the chronological development of techniques and materials for their treatment has exhibited graphene as an efficient candidate for environmental remediation. This current review considers the various graphene-based materials, their properties, advancement in synthesis methods with time and their detailed application in removing dyes, antibiotics and heavy metals. It has been discussed how graphene and its derivatives exhibit unique electronic, mechanical, structural and thermal properties. In this paper, the mechanism of adsorption and degradation using these graphene-based materials has also been discussed vividly. In addition to this, a bibliographic analysis was performed to identify the trend of research related to graphene and its derivatives in the adsorption and degradation of pollutants round the globe reflected by the publications. Therefore, this review can be instrumental in understanding the fact that further development of graphene-based materials and their mass production can provide a very effective and economical wastewater treatment method.
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Affiliation(s)
- Aditya Kumar Jha
- Department of Civil and Environmental Engineering, Birla Institute of Technology, Mesra, Ranchi, 835215, India
| | - Sukalyan Chakraborty
- Department of Civil and Environmental Engineering, Birla Institute of Technology, Mesra, Ranchi, 835215, India.
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Majdoub A, Majdoub M, Rafqah S, Zaitan H. Incorporation of g-C 3N 4 nanosheets and CuO nanoparticles on polyester fabric for the dip-catalytic reduction of 4 nitrophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:85940-85952. [PMID: 37395877 DOI: 10.1007/s11356-023-28323-0] [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: 04/03/2023] [Accepted: 06/14/2023] [Indexed: 07/04/2023]
Abstract
In the present work, we present the preparation of a new emerged heterogeneous catalyst (PE/g-C3N4/CuO) by in situ deposition of copper oxide nanoparticles (CuO) over the graphitic carbon nitride (g-C3N4) as the active catalyst and polyester (PE) fabric as the inert support. The synthesized sample (PE/g-C3N4/CuO) "dip catalyst" was studied by using various analytical techniques (Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy and dispersive X-ray spectroscopy (SEM/EDX), and transmission electron microscopy (TEM). The nanocomposite is utilized as heterogeneous catalysts for the 4-nitrophenol reduction in the presence of NaBH4, in aqueous solutions. According to experimental results, PE/g-C3N4/CuO with a surface of 6 cm2 (3 cm × 2 cm) demonstrated the catalyst exhibit excellent catalytic activity with 95% reduction efficiency for only 4 min of reaction and an apparent reaction rate constant (Kapp) of 0.8027 min-1. Further evidence that this catalyst based on prepared PE support can be a good contender for long-lasting chemical catalysis comes from the remarkable stability after 10 repetitions reaction cycles without a noticeably loss in catalytic activity. The novelty of this work consists to fabricate of catalyst based of CuO nanoparticles stabilized with g-C3N4 on the surface of an inert substrate PE, which results in an heterogenous dip-catalyst that can be easily introduced and isolated from the reaction solution with good retention of high catalytic performance in the reduction of 4-nitrophenol.
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Affiliation(s)
- Ali Majdoub
- Processes, Materials and Environment Laboratory (LPME), Department of Chemistry, Faculty of Sciences and Technology of Fez, Sidi Mohamed Ben Abdellah University, B.P. 2202, Fez, Morocco
| | - Mohammed Majdoub
- Laboratory of Materials, Catalysis & Valorization of Natural Resources, Hassan II University, 20000, Casablanca, Morocco
| | - Salah Rafqah
- Analytical and Molecular Chemistry Laboratory, Polydisciplainary Faculty of Safi, Cadi Ayyad University, Safi, Morocco
| | - Hicham Zaitan
- Processes, Materials and Environment Laboratory (LPME), Department of Chemistry, Faculty of Sciences and Technology of Fez, Sidi Mohamed Ben Abdellah University, B.P. 2202, Fez, Morocco.
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Adsorption and electrochemical properties of deep eutectic solvent-functionalized oxidized hydrogen-substituted graphyne and its composites with multi-walled carbon nanotubes. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Farag AA, Gafar Afif A, Salih SA, Altalhi AA, Mohamed EA, Mohamed GG. Highly Efficient Elimination of Pb +2 and Al +3 Metal Ions from Wastewater Using Graphene Oxide/3,5-Diaminobenzoic Acid Composites: Selective Removal of Pb 2+ from Real Industrial Wastewater. ACS OMEGA 2022; 7:38347-38360. [PMID: 36340163 PMCID: PMC9631901 DOI: 10.1021/acsomega.2c03150] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 10/11/2022] [Indexed: 06/01/2023]
Abstract
In this study, graphene oxide (GO) was functionalized with 3,5-diaminobenzoic acid (DABA) by a one-step method to produce functionalized graphene oxide (FGO). FGO is a new type of absorbent crystalline substance that has a high surface area and a large porosity site as well as a large number of dentate functional groups which lead to enhanced adsorption performance for heavy metal ions. The adsorption efficiency of FGO for Pb+2 and Al+3 metal ions was extra satisfactory when compared with GO due to the ease of design and the homogeneous structure of FGO. The structure of synthesized GO and FGO was confirmed by different techniques such as FTIR, XRD, TGA, BET nitrogen adsorption-desorption methods, and TEM analyses. The mass of utilized adsorbents, the pH of the medium, the concentration of ionic species in the medium, temperature, and process time were all investigated as variables in the adsorbent procedure. The experimental data recorded that the maximum adsorption efficiency of the 0.5 g/L FGO composite was 99.7 and 99.8% for Pb+2 and Al+3 metal ions, respectively, while in the case of using GO, the maximum adsorption efficiency was 92.6 and 91.9% at ambient temperature in a semineutral medium at pH 6 after 4 h. The adsorption results were in good conformity with the Freundlich model and pseudo-second-order kinetics for Pb+2 and Al+3 metal ions. Also, the reusability study indicates that FGO can be used repeatedly at least for five cycles with a slight significant loss in its efficiency.
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Affiliation(s)
- Ahmed A. Farag
- Egyptian
Petroleum Research Institute (EPRI), 11727Cairo, Egypt
| | - Aboubakr Gafar Afif
- Chemistry
Department, Faculty of Science, Cairo University, 12613Giza, Egypt
| | - Said A. Salih
- Chemistry
Department, Faculty of Science, Cairo University, 12613Giza, Egypt
| | - Amal A. Altalhi
- Department
of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif21944, Saudi Arabia
| | | | - Gehad G. Mohamed
- Chemistry
Department, Faculty of Science, Cairo University, 12613Giza, Egypt
- Nanoscience
Department, Basic and Applied Sciences Institute, Egypt-Japan University of Science and Technology, New Borg El Arab, Alexandria21934, Egypt
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Janjhi FA, Janwery D, Chandio I, Ullah S, Rehman F, Memon AA, Hakami J, Khan F, Boczkaj G, Thebo KH. Recent Advances in Graphene Oxide‐Based Membranes for Heavy Metal Ions Separation. CHEMBIOENG REVIEWS 2022. [DOI: 10.1002/cben.202200015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Farooque Ahmed Janjhi
- University of Sindh National Centre of Excellence in Analytical Chemistry (NCEAC) 76080 Jamshoro Pakistan
- Gdansk University of Technology Faculty of Civil and Environment Engineering, Department of Sanitary Engineering G. Narutowicza St. 11/12 80-233 Gdansk Poland
| | - Dahar Janwery
- University of Sindh National Centre of Excellence in Analytical Chemistry (NCEAC) 76080 Jamshoro Pakistan
| | - Imamdin Chandio
- University of Sindh National Centre of Excellence in Analytical Chemistry (NCEAC) 76080 Jamshoro Pakistan
| | - Sami Ullah
- King Fahd University of Petroleum & Mineral (KFUPM) K.A. CARE Energy Research & Innovation Center (ERIC) 31261 Dhahran Saudi Arabia
| | - Faisal Rehman
- University of Virginia Department of Mechanical and Aerospace Engineering 22904 Charlottesville VA USA
| | - Ayaz Ali Memon
- University of Sindh National Centre of Excellence in Analytical Chemistry (NCEAC) 76080 Jamshoro Pakistan
| | - Jabir Hakami
- Jazan University Department of Physics, College of Science P.O. Box 114 45142 Jazan Saudi Arabia
| | - Firoz Khan
- King Fahd University of Petroleum & Minerals (KFUPM) Interdiscipliary Research Center for Renewable Energy and Power Systems (IRC–REPS), Research Institute 31261 Dhahran Saudi Arabia
| | - Grzegorz Boczkaj
- Gdansk University of Technology Faculty of Civil and Environment Engineering, Department of Sanitary Engineering G. Narutowicza St. 11/12 80-233 Gdansk Poland
| | - Khalid Hussain Thebo
- Chinese Academy of Science Institute of Metal Research (IMR) Wenhua Road Shenynag China
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Simultaneous removal of cationic heavy metals and arsenic from drinking water by an activated carbon supported nanoscale zero-valent iron and nanosilver composite. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129581] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Yin J, Zhai H, Wang Y, Wang B, Chu G, Guo Q, Zhang Y, Sun X, Guo Y, Zhang Y. COF/MWCNTs/CLS-Based Electrochemical Sensor for Simultaneous and Sensitive Detection of Multiple Heavy Metal Ions. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02369-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Shehzad H, Farooqi ZH, Ahmed E, Sharif A, Ajmal M, Razzaq S, Naseer MU, Nazir MA, Batool M, Akram T, Nissa QU, Fatima A, Akbar L. Effective biosorption of Cu(II) using hybrid biocomposite based on N-maleated chitosan/calcium alginate/titania: Equilibrium sorption, kinetic and thermodynamic studies. Int J Biol Macromol 2022; 216:676-685. [PMID: 35810852 DOI: 10.1016/j.ijbiomac.2022.06.159] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/27/2022] [Accepted: 06/25/2022] [Indexed: 11/16/2022]
Abstract
In this research work, a hybrid biocomposite based on N-maleated chitosan, amino-thiocarbamate functionalised calcium alginate and anhydrous Titania nanoparticles (NMC-MCA-TiO2) was fabricated. The study involves the one pot facile synthesis of N-maleated chitosan and amino-thiocarbamate functionalised alginate under moderate conditions. Sorbent was conditioned in the form of hydrogel beads and characterized through FT-IR and SEM analysis. Newly grafted functional groups could act as potential chelating sites for enhanced Cu(II) sorption. Modified biopolymers were organo-functionalised which provided excellent support for immobilization of Titania nanoparticles (TiO2) as inorganic filler. Kinetic data illustrated the manifestation of intrinsic chemisorption instead of simple bulk/film diffusion. Equilibrium sorption data fitted well with Freundlich adsorption model (R2 ≈ 0.99) which designated the heterogeneous nature of sorbent. Maximum sorption capacity of biosorbent was found 192 mg/g at 298 K and pH = 6.0. Standard Gibbs free energy change ∆Go (-21.53, -21.97, and - 22.42 kJ/mol), standard enthalpy change ∆Ho (5.12 kJ/mol) and standard entropy change ∆So (0.09 kJ/mol K-1) values suggested that the sorption process to be spontaneous and endothermic. The sorbent 3NMC-MCA-TiO2 could be competitive candidate for economical and rapid adsorptive removal of Cu(II) from dilute contaminated liquids.
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Affiliation(s)
- Hamza Shehzad
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan.
| | - Zahoor H Farooqi
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan.
| | - Ejaz Ahmed
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Ahsan Sharif
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Muhammad Ajmal
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Sana Razzaq
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - M Uzair Naseer
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - M Ahmad Nazir
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Mehwish Batool
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Tehreem Akram
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Qamar Un Nissa
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Amarah Fatima
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
| | - Laiba Akbar
- School of Chemistry, University of the Punjab, Lahore 54590, Pakistan
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15
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Omran B, Baek KH. Graphene-derived antibacterial nanocomposites for water disinfection: Current and future perspectives. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 298:118836. [PMID: 35032599 DOI: 10.1016/j.envpol.2022.118836] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/29/2021] [Accepted: 01/08/2022] [Indexed: 05/11/2023]
Abstract
Antimicrobial nanomaterials provide numerous opportunities for the synthesis of next-generation sustainable water disinfectants. Using the keywords graphene and water disinfection and graphene antibacterial activity, a detailed search of the Scopus database yielded 198 and 1433 studies on using graphene for water disinfection applications and graphene antibacterial activity in the last ten years, respectively. Graphene family nanomaterials (GFNs) have emerged as effective antibacterial agents. The current innovations in graphene-, graphene oxide (GO)-, reduced graphene oxide (rGO)-, and graphene quantum dot (GQD)-based nanocomposites for water disinfection, including their functionalization with semiconductor photocatalysts and metal and metal oxide nanoparticles, have been thoroughly discussed in this review. Furthermore, their novel application in the fabrication of 3D porous hydrogels, thin films, and membranes has been emphasized. The physicochemical and structural properties affecting their antibacterial efficiency, such as sheet size, layer number, shape, edges, smoothness/roughness, arrangement mode, aggregation, dispersibility, and surface functionalization have been highlighted. The various mechanisms involved in GFN antibacterial action have been reviewed, including the mechanisms of membrane stress, ROS-dependent and -independent oxidative stress, cell wrapping/trapping, charge transfer, and interaction with cellular components. For safe applications, the potential biosafety and biocompatibility of GFNs in aquatic environments are emphasized. Finally, the current limitations and future perspectives are discussed. This review may provide ideas for developing efficient and practical solutions using graphene-, GO-, rGO-, and GQD-based nanocomposites in water disinfection by rationally employing their unique properties.
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Affiliation(s)
- Basma Omran
- Department of Biotechnology, Yeungnam University, Gyeongbuk, Gyeongsan, 38541, Republic of Korea; Department of Processes Design & Development, Egyptian Petroleum Research Institute (EPRI), Nasr City, Cairo PO, 11727, Egypt
| | - Kwang-Hyun Baek
- Department of Biotechnology, Yeungnam University, Gyeongbuk, Gyeongsan, 38541, Republic of Korea.
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16
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Arshad F, Nabi F, Iqbal S, Khan RH. Applications of graphene-based electrochemical and optical biosensors in early detection of cancer biomarkers. Colloids Surf B Biointerfaces 2022; 212:112356. [PMID: 35123193 DOI: 10.1016/j.colsurfb.2022.112356] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/04/2022] [Accepted: 01/19/2022] [Indexed: 12/26/2022]
Abstract
Graphene is a one-atom-thick carbon compound, which holds promises for detecting cancer biomarkers along with its derivatives. The atom-wide graphene layer is ideal for cancer biomarker detection due to its unique physicochemical properties like increased electrical and thermal conductivity, optical transparency, and enhanced chemical and mechanical strength. The scientific aim of any biosensor is to create a smaller and portable point of care device for easy and early cancer detection; graphene is able to live up to that. Apart from tumour detection, graphene-based biosensors can diagnose many diseases, their biomarkers, and pathogens. Many existing remarkable pieces of research have proven the candidacy of nanoparticles in most cancer biomarkers detection. This article discusses the effectiveness of graphene-based biosensors in different cancer biomarker detection. This article provides a detailed review of graphene and its derivatives that can be used to detect cancer biomarkers with high specificity, sensitivity, and selectivity. We have highlighted the synthesis procedures of graphene and its products and also discussed their significant properties. Furthermore, we provided a detailed overview of the recent studies on cancer biomarker detection using graphene-based biosensors. The different paths to create and modify graphene surfaces for sensory applications have also been highlighted in each section. Finally, we concluded the review by discussing the existing challenges of these biosensors and also highlighted the steps that can be taken to overcome them.
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Affiliation(s)
- Fareeha Arshad
- Department of Biochemistry, Aligarh Muslim University, Aligarh 202001, India
| | - Faisal Nabi
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202001, India
| | - Sana Iqbal
- Department of Electrical Engineering, Aligarh Muslim University, Aligarh 202001, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202001, India.
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17
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De Beni E, Giurlani W, Fabbri L, Emanuele R, Santini S, Sarti C, Martellini T, Piciollo E, Cincinelli A, Innocenti M. Graphene-based nanomaterials in the electroplating industry: A suitable choice for heavy metal removal from wastewater. CHEMOSPHERE 2022; 292:133448. [PMID: 34973258 DOI: 10.1016/j.chemosphere.2021.133448] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 11/30/2021] [Accepted: 12/24/2021] [Indexed: 05/19/2023]
Abstract
The presence of various heavy metal ions in the industrial waste waters has recently been a challenging issue for human health. Since heavy metals are highly soluble in the aquatic environments and they can be absorbed easily by living organisms, their removal is essential from the environmental point of view. Many studies have been devoted to investigating the environmental behaviour of graphene-based nanomaterials as sorbent agents to remove metals from wastewaters arising by galvanic industries. Among the graphene derivates, especially graphene oxide (GO), due to its abundant oxygen functional groups, high specific area and hydrophilicity, is a high-efficient adsorbent for the removal of heavy and precious metals in aquatic environment. This paper reviews the main graphene, GO, functionalized GO and their composites and its applications in the metals removal process. The influencing factors, adsorption capacities and reuse capability are highlighted for the most extensively used heavy metals, including copper, zinc, nickel, chromium, cobalt and precious metals (i.e., gold, silver, platinum, palladium, rhodium, and ruthenium) in the electroplating process.
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Affiliation(s)
- Eleonora De Beni
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy.
| | - Walter Giurlani
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121, Firenze, Italy
| | - Lorenzo Fabbri
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Roberta Emanuele
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Saul Santini
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Chiara Sarti
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Tania Martellini
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121, Firenze, Italy
| | | | - Alessandra Cincinelli
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy
| | - Massimo Innocenti
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy; National Interuniversity Consortium of Materials Science and Technology (INSTM), Via G. Giusti 9, 50121, Firenze, Italy; Center for Colloid and Surface Science (CSGI), Via Della Lastruccia 3, 50019, Sesto Fiorentino, (FI), Italy; Insititute of Chemistry of Organometallic Compounds (ICCOM) - National Research Council (CNR), Via Madonna Del Piano 10, 50019, Sesto Fiorentino, (FI), Italy
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18
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Study on the effects of deep eutectic solvents as a reaction media on the micromorphology of hydrogen-substituted graphyne and its adsorption and electrochemical properties. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Hu SZ, Huang T, Zhang N, Lei YZ, Wang Y. Chitosan-assisted MOFs dispersion via covalent bonding interaction toward highly efficient removal of heavy metal ions from wastewater. Carbohydr Polym 2022; 277:118809. [PMID: 34893228 DOI: 10.1016/j.carbpol.2021.118809] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/10/2021] [Accepted: 10/21/2021] [Indexed: 02/05/2023]
Abstract
Metal organic frameworks (MOFs) have been considered to be robust adsorbent for the removing heavy metal ions from wastewater due to their unique properties such as large active sites, high specific surface area and high porosity, etc., however, their practical engineering application faces the problem of serious agglomeration. In this work, a new strategy of chitosan (CS) assisting MOF dispersion was proposed to develop the new generation of MOF-based adsorbents, namely, CS grafted UiO-66-NH2 composite materials (CGUNCM). The UiO-66-NH2 was selected and it was grafted onto the main chains of CS through covalent bonding interaction with the aid of glutaraldehyde, which was totally different from the common method that grafting molecular chains on the surface of MOFs resulting in the dramatic reduction of active adsorption sites. The results show that grafting MOFs onto CS main chains not only greatly improves the dispersion of MOFs but also reserves the morphology of MOFs as much as possible. The adsorption performances toward Cu(II) and Pb(II) were intensively studied by varying adsorbate concentration, ionic strength, the contact time, adsorption temperature and pH value of solution. The results show that the composite adsorbent exhibits high adsorption efficiency and the adsorption equilibrium can be reached within 45 min, and the maximum adsorption capacity toward Cu(II) and Pb(II) achieve 364.96 mg/g and 555.56 mg/g, respectively. Furthermore, the composite adsorbent shows good reusability. This work provides a new method of fabricating the MOF-based adsorbent and paves the way for the practical application of such adsorbents in wastewater treatment.
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Affiliation(s)
- Shao-Zhong Hu
- School of Materials Science & Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, China
| | - Ting Huang
- School of Materials Science & Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, China.
| | - Nan Zhang
- School of Materials Science & Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, China
| | - Yan-Zhou Lei
- Analytical and Testing Center, Southwest Jiaotong University, Chengdu 610031, China
| | - Yong Wang
- School of Materials Science & Engineering, Key Laboratory of Advanced Technologies of Materials (Ministry of Education), Southwest Jiaotong University, Chengdu 610031, China.
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Self-Supporting g-C3N4 Nanosheets/Ag Nanoparticles Embedded onto Polyester Fabric as “Dip-Catalyst” for Synergic 4-Nitrophenol Hydrogenation. Catalysts 2021. [DOI: 10.3390/catal11121533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Herein, we report the design of a cost-effective catalyst with excellent recyclability, simple recuperation and facile recovery, and the examination between the reaction cycles via the development of self-supporting g-C3N4 nanosheets/Ag NPs polyester fabric (PES) using a simple, facile and efficient approach. PES fabrics were coated via a sono-coating method with carbon nitride nanosheets (GCNN) along with an in situ setting of Ag nanoparticles on PES coated GCNN surface producing PES-GCNN/Ag0. The elaborated textile-based materials were fully characterized using FTIR, 13C NMR, XRD, TGA, SEM, EDX, etc. Catalytic performance of the designed “Dip-Catalyst” demonstrated that the as-prepared PES-GCCN/Ag0 has effectively catalyzed the hydrogenation of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of NaBH4. The 3 × 3 cm2 PES-GCNN/Ag0 showed the best catalytic activity, displaying an apparent rate constant (Kapp) equal to 0.43 min−1 and more than 10 reusability cycles, suggesting that the prepared catalyst-based PES fabric can be a strong nominee for sustainable chemical catalysis. Moreover, the coated fabrics exhibited appreciable antibacterial capacity against Staphylococcus epidermidis (S. epidermidis) and Escherichia coli (E. coli). The present study opens up new opportunities for the future design of a low cost and large-scale process of functional fabrics.
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21
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Facile asymmetric modification of graphene nanosheets using κ-carrageenan as a green template. J Colloid Interface Sci 2021; 607:1131-1141. [PMID: 34571300 DOI: 10.1016/j.jcis.2021.09.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 11/22/2022]
Abstract
The synthesis of Janus nanosheets using κ-carrageenan (κ-Ca) as a green template endows a greener and more straightforward method compared to traditional approaches of using wax template. We hypothesize that the hydrogen bonding interaction between κ-Ca and graphene oxide (GO) allows partial masking of GO's single facet, paving the way for the asymmetric modification of the exposed surface. GO is first encapsulated within the porous hydrogel matrix formed by κ-Ca to isolate one of the facets. The exposed surface was then selectively hydrophobized to produce an amphiphilic asymmetrically modified graphene oxide (AMGO). The properties of AMGO synthesized under different κ-Ca/GO ratios were studied. The κ-Ca/GO interactions and the properties of GO and AMGO were investigated and characterized. AMGO was successfully produced with a yield of 90.37 % under optimized synthesis conditions. The separation of κ-Ca and AMGO was conducted without organic solvents, and the κ-Ca could be subsequently recovered. Furthermore, the porous hydrogel matrix formed by κ-Ca and GO exhibited excellent shape-retaining properties with high thermal tolerance of up to 50 °C. Given these benefits, this newly developed method endows sustainability and open the possibility of formulating more flexible material synthesis protocols.
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22
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Chen F, Liang W, Qin X, Jiang L, Zhang Y, Fang S, Luo D. Preparation and recycled simultaneous adsorption of methylene blue and Cu2+ co-pollutants over carbon layer encapsulated Fe3O4 /graphene oxide nanocomposites rich in amino and thiol groups. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126913] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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