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Karaduman FR, Türk Çulha S, Horzum N. Seaweed Superheroes: Cystoseira barbata-Incorporated Electrospun Fibers for Lead Ion Sequestration. ACS APPLIED BIO MATERIALS 2024; 7:5345-5358. [PMID: 38991130 DOI: 10.1021/acsabm.4c00550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2024]
Abstract
The efficient removal of lead ions at low concentrations is paramount in combating the significant threat posed by water pollution resulting from industrial activities and population growth. In this study, electrospun C. barbata/PAN fibers were developed to efficiently remove lead(II) ions from water. The morphology, structure, and mechanical properties of the fibers were examined, highlighting that the augmentation of the surface area through the conversion of C. barbata into the polymer fibers facilitates increased metal bonding sites during sorption. C. barbata/PAN fibers exhibited superior characteristics, including higher surface area, smaller pore size, and increased pore volume, compared to powdered C. barbata. The effects of factors such as shaking time, algae percentage, sorbent amount, pH, metal concentration, and temperature on Pb(II) sorption were investigated by the batch method. At an initial ion concentration of 100 μg L-1 and pH 4.0, C. barbata (5 wt %)/PAN fiber demonstrated a notable sorption efficiency of 89-90% (270 μg/g) after 60 min. The equilibrium data align with the Freundlich and Dubinin-Radushkevich isotherm models, whereas the pseudo-second-order kinetic model provides the most suitable description. The characterization of fibers after sorption revealed that carboxyl, hydroxyl, and sulfonyl groups play an active role in Pb(II) sorption.
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Affiliation(s)
- Fatma Rabia Karaduman
- Graduate School of Natural and Applied Sciences, İzmir Katip Çelebi University, İzmir 35620, Turkey
| | - Saniye Türk Çulha
- Department of Basic Science, Faculty of Fisheries, İzmir Katip Çelebi University, İzmir 35620, Turkey
| | - Nesrin Horzum
- Department of Engineering Science, Faculty of Engineering and Architecture, İzmir Katip Çelebi University, İzmir 35620, Turkey
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2
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Li M, Prévot V, You Z, Forano C. Highly selective and efficient Pb 2+ capture using PO 4-loaded 3D-NiFe Layer Double Hydroxides derived from MIL-88A. CHEMOSPHERE 2024:143070. [PMID: 39142393 DOI: 10.1016/j.chemosphere.2024.143070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 07/09/2024] [Accepted: 08/08/2024] [Indexed: 08/16/2024]
Abstract
Lead (Pb) contamination in water requires improved decontamination technologies. The addition of phosphate to precipitate Pb2⁺ is a widely used method for remediating Pb in soil and water, though it has certain limitations. This study focuses on novel 3D mesoporous layered double hydroxide (LDH) sorbents functionalized with phosphate anions for Pb2+ removal from contaminated waters. Our innovative strategy involves converting a sacrificial template MOF structure (MIL-88A(Fe)) into NixFe LDH, followed by an anion exchange reaction with phosphate anions. This process preserves the 3D microrod architecture of MIL-88A and prevents deleterious LDH particle aggregation. The synthesis results in stable microrod crystals, 1 to 2 μm long, composed of 3D assemblies of NixFe-PO4 LDH nanoplatelets with a specific surface area exceeding 110 m2/g. The novel LDH materials display fast adsorption kinetics (pseudo-second order model) and remarkably high Pb2⁺ removal performances (Langmuir isotherm model) with a capacity of 538 mg Pb2⁺/g Ni₃Fe/MIL-PO4, surpassing other reported adsorbents. LDH-PO4 exhibits high selectivity for Pb2+ over competing ions like Ni2⁺ and Cd2⁺ (selectivity order is: Pb2+ > Ni2+ > Cd2+). Removal of Pb2+ from NixFeLDH/88A-PO4 involves various mechanisms, including surface complexation and surface precipitation of lead phosphate or lead hydroxide phases as revealed by structural characterization techniques.
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Affiliation(s)
- Mengwei Li
- School of Resource and Environmental Sciences, Wuhan University, China; Université Clermont Auvergne, CNRS, Clermont; Institut de Chimie de Clermont- Ferrand, F-63000 Clermont-Ferrand, France
| | - Vanessa Prévot
- Université Clermont Auvergne, CNRS, Clermont; Institut de Chimie de Clermont- Ferrand, F-63000 Clermont-Ferrand, France
| | - Zhixiong You
- School of Resource and Environmental Sciences, Wuhan University, China.
| | - Claude Forano
- Université Clermont Auvergne, CNRS, Clermont; Institut de Chimie de Clermont- Ferrand, F-63000 Clermont-Ferrand, France.
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3
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Yang YX, Meng LL, Zhou S, Xia M, Bate B. The physicochemical interacting mechanisms and real-time spectral induced polarization monitoring of lead remediation by an aeolian soil. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134744. [PMID: 38850933 DOI: 10.1016/j.jhazmat.2024.134744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 05/14/2024] [Accepted: 05/26/2024] [Indexed: 06/10/2024]
Abstract
Compared to traditional lead-remediating materials, natural-occurring paleosol is ubiquitous and could be a promising alternative due to its rich content in calcite, a substance known for its lead-removal ability via carbonate dissolution-PbCO3 precipitation process. Yet, the capability of paleosol to remediate aqueous solutions polluted with heavy metals, lead included, has rarely been assessed. To fill this gap, a series of column permeation experiments with influent Pb2+ concentrations of 2000, 200, and 20 mg/L were conducted and monitored by the spectral induced polarization technique. Meanwhile, the SEM-EDS, XRD, XPS, FTIR and MIP tests were carried out to unveil the underlying remediation mechanisms. The Pb-retention capacity of paleosol was 1.03 mmol/g. The increasing abundance of Pb in the newly-formed crystals was confirmed to be PbCO3 by XRD, SEM-EDS and XPS. Concurrently, after Pb2+ permeation, the decreasing calcite content in paleosol sample from XRD test, and the appearance of Ca2+ in the effluent confirmed that the dissolution of CaCO3 followed by the precipitation of PbCO3 was the major mechanism. The accumulated Pb (i.e., the diminished Ca) in paleosol was inversely proportional (R2 >0.82) to the normalized chargeability (mn), an SIP parameter denoting the quantity of polarizable units (primarily calcite).
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Affiliation(s)
- Yi-Xin Yang
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China
| | - Long-Long Meng
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China
| | - Sheng Zhou
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China
| | - Min Xia
- The Architectural Design & Research Institute of Zhejiang University Co., Ltd, China
| | - Bate Bate
- Institute of Geotechnical Engineering, Zhejiang University, Hangzhou, China.
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4
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Mahat SB, Abobaker MSA, Chun CNW, Wibisono Y, Ahmad AL, Omar WMW, Tajarudin HA. Scenedesmus sp. as a phycoremediation agent for heavy metal removal from landfill leachate in a comparative study: batch, continuous, and membrane bioreactor (MBR). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34461-w. [PMID: 39093395 DOI: 10.1007/s11356-024-34461-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 07/19/2024] [Indexed: 08/04/2024]
Abstract
Improper disposal of municipal solid waste led to the release of heavy metals into the environment through leachate accumulation, causing a range of health and environmental problems. Phycoremediation, using microalgae to remove heavy metals from contaminated water, was investigated as a promising alternative to traditional remediation methods. This study explored the potential of Scenedesmus sp. as a phycoremediation agent for heavy metal removal from landfill leachate. The study was conducted in batch, continuous, and membrane bioreactor (MBR). In the batch system, Scenedesmus sp. was added to the leachate and incubated for 15 days before the biomass was separated from the suspension. In the continuous system, Scenedesmus sp. was cultured in a flow-through system, and the leachate was continuously fed into the system with flow rates measured at 120, 150, and 180 mL/h for 27 days. The MBR system was similar to the continuous system, but it incorporated a membrane filtration step to remove suspended solids from the treated water. The peristaltic pump was calibrated to operate at five different flow rates: 0.24 L/h, 0.30 L/h, 0.36 L/h, 0.42 L/h, and 0.48 L/h for the MBR system and ran for 24 h. The results showed that Scenedesmus sp. was effective in removing heavy metals such as lead (Pb), cobalt (Co), chromium (Cr), nickel (Ni), and zinc (Zn) from landfill leachate in all three systems. The highest removal efficiency was observed for Ni, with a removal of 0.083 mg/L in the MBR and 0.068 mg/L in batch mode. The lowest removal efficiency was observed for Zn, with a removal of 0.032 mg/L in the MBR, 0.027 mg/L in continuous mode, and 0.022 mg/L in batch mode. The findings depicted that the adsorption capacity varied among the studied metal ions, with the highest capacity observed for Ni (II) and the lowest for Zn (II), reflecting differences in metal speciation, surface charge interactions, and affinity for the adsorbent material. These factors influenced the adsorption process and resulted in varying adsorption capacities for different metal ions. The study also evaluated the biomass growth of Scenedesmus sp. and found that it was significantly influenced by the initial metal concentration in the leachate. The results of this study suggest that Scenedesmus sp. can be used as an effective phycoremediation agent for removing heavy metals from landfill leachate.
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Affiliation(s)
- Siti Baizura Mahat
- Biomass Transportation Cluster, School of Industrial Technology, Universiti Sains Malaysia, 11800, George Town, Penang, Malaysia
- Bioprocess Engineering Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800, George Town, Penang, Malaysia
| | - Mahmod Sidati Ali Abobaker
- Bioprocess Engineering Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800, George Town, Penang, Malaysia
| | - Charles Ng Wai Chun
- Bioprocess Engineering Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800, George Town, Penang, Malaysia
| | - Yusuf Wibisono
- Bioprocess Engineering, University of Brawijaya, Jl. Veteran, Ketawanggede, Kec. Lowokwaru, Kota Malang, Jawa Timur, 65145, Indonesia
| | - Abdul Latif Ahmad
- School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300, Nibong Tebal, Malaysia
| | - Wan Maznah Wan Omar
- School of Biological Sciences, Universiti Sains Malaysia, 11800, George Town, Penang, Malaysia
| | - Husnul Azan Tajarudin
- Biomass Transportation Cluster, School of Industrial Technology, Universiti Sains Malaysia, 11800, George Town, Penang, Malaysia.
- Bioprocess Engineering Technology Division, School of Industrial Technology, Universiti Sains Malaysia, 11800, George Town, Penang, Malaysia.
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5
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Fan D, Peng Y, He X, Ouyang J, Fu L, Yang H. Recent Progress on the Adsorption of Heavy Metal Ions Pb(II) and Cu(II) from Wastewater. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1037. [PMID: 38921913 PMCID: PMC11206449 DOI: 10.3390/nano14121037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 06/11/2024] [Accepted: 06/11/2024] [Indexed: 06/27/2024]
Abstract
With the processes of industrialization and urbanization, heavy metal ion pollution has become a thorny problem in water systems. Among the various technologies developed for the removal of heavy metal ions, the adsorption method is widely studied by researchers and various nanomaterials with good adsorption performances have been prepared during the past decades. In this paper, a variety of novel nanomaterials with excellent adsorption performances for Pb(II) and Cu(II) reported in recent years are reviewed, such as carbon-based materials, clay mineral materials, zero-valent iron and their derivatives, MOFs, nanocomposites, etc. The novel nanomaterials with extremely high adsorption capacity, selectivity and particular nanostructures are summarized and introduced, along with their advantages and disadvantages. And, some future research priorities for the treatment of wastewater are also prospected.
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Affiliation(s)
- Dikang Fan
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
| | - Yang Peng
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
| | - Xi He
- Changsha Industrial Technology Research Institute (Environmental Protection) Co., Ltd., Changsha 410083, China;
- Aerospace Kaitian Environmental Technology Co., Ltd., Changsha 410083, China
| | - Jing Ouyang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
| | - Liangjie Fu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
| | - Huaming Yang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (D.F.); (J.O.); (H.Y.)
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Functional Geomaterials in China Nonmetallic Minerals Industry, China University of Geosciences, Wuhan 430074, China
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6
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Ranno L, Tan YZ, Ong CS, Guo X, Koo KN, Li X, Wang W, Serna S, Liu C, Rusli, Littlejohns CG, Reed GT, Hu J, Wang H, Sia JXB. Crown ether decorated silicon photonics for safeguarding against lead poisoning. Nat Commun 2024; 15:3820. [PMID: 38744833 PMCID: PMC11094186 DOI: 10.1038/s41467-024-47938-6] [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: 10/24/2023] [Accepted: 04/14/2024] [Indexed: 05/16/2024] Open
Abstract
Lead (Pb2+) toxification is a concerning, unaddressed global public health crisis that leads to 1 million deaths annually. Yet, public policies to address this issue have fallen short. This work harnesses the unique abilities of crown ethers, which selectively bind to specific ions. This study demonstrates the synergistic integration of highly-scalable silicon photonics, with crown ether amine conjugation via Fischer esterification in an environmentally-friendly fashion. This realizes an integrated photonic platform that enables the in-operando, highly-selective and quantitative detection of various ions. The development dispels the existing notion that Fischer esterification is restricted to organic compounds, facilitating the subsequent amine conjugation for various crown ethers. The presented platform is specifically engineered for selective Pb2+ detection, demonstrating a large dynamic detection range, and applicability to field samples. The compatibility of this platform with cost-effective manufacturing indicates the potential for pervasive implementation of the integrated photonic sensor technology to safeguard against societal Pb2+ poisoning.
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Affiliation(s)
- Luigi Ranno
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yong Zen Tan
- Fingate Technologies Pte Ltd, 8 Cleantech Loop #06-65, 637145, Singapore, Singapore
| | - Chi Siang Ong
- Fingate Technologies Pte Ltd, 8 Cleantech Loop #06-65, 637145, Singapore, Singapore
| | - Xin Guo
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Khong Nee Koo
- Vulcan Photonics SDN. BHD. D-11-08, Menara Suezcap 1 KL Gateway, No. 2, Jalan Kerinchi, Kampung Kerinchi, 59200, Kuala Lumpur, Malaysia
| | - Xiang Li
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Wanjun Wang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Samuel Serna
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Chongyang Liu
- Temasek Laboratories, Nanyang Technological University, 50 Nanyang Avenue, 637553, Singapore, Singapore
| | - Rusli
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Callum G Littlejohns
- Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK
| | - Graham T Reed
- Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK
| | - Juejun Hu
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Hong Wang
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Jia Xu Brian Sia
- Department of Materials Science & Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA.
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore.
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7
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Ichu BC, Nwogu NA, Opara AI, Agulanna AC, Udoka Nkwoada A. Heavy metal profile with health risk peculiarities in Enugu State and their long-term challenges in drinking water. JOURNAL OF WATER AND HEALTH 2024; 22:939-952. [PMID: 38822471 DOI: 10.2166/wh.2024.059] [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: 02/04/2024] [Accepted: 03/17/2024] [Indexed: 06/03/2024]
Abstract
Health authorities are particularly concerned about water security in Enugu, southeast Nigeria and heavy metal (HM) pollution. The HM profiles of 51 samples collected from 17 different commercial bottled water brands in Enugu were examined using an flame atomic absorption spectroscopy. Cd, Cr, Cu, Pb, Ni, and Zn had mean values of 0.15 ± 0.03, 0.03 ± 0.02, 0.16 ± 0.03, 0.13 ± 0.02, and 0.02 ± 0.01 mg/L, respectively. The highest levels of Pb2+ were 0.27 mg/L in Exalté, Ni2+ 0.26 mg/L in Jasmine, Cd2+ 0.36 mg/L in Ezbon, Cr3+ 0.07 mg/L in Trinity, Cu2+ 0.04 mg/L in Bigi, and Zn2+ 0.02 mg/L in Aquarapha. The amounts of Cr, Cu, and Zn were below the allowable limits; nevertheless, the Pb content in eight bottled water samples exceeded both the Nigerian and World Health Organization (WHO)/U.S. Environmental Protection Agency (USEPA) permissible limits. The Cd2+ and Ni2+ levels in the 11th and 4th bottled water samples were above the WHO/USEPA-approved limits. Statistical evaluation revealed significant differences in the amounts of HM ions in the samples (p < 0.05). The findings indicated that concentration levels of Cd2+ Ni2+, and Pb2+ pose a public health concern that needs to be addressed due to potential risk to consumer health.
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Affiliation(s)
- Bright Chigozie Ichu
- Materials and Energy Technology Department, Projects Development Institute (PRODA), Emene Industrial Layout, P.M.B. 01609, Enugu State, Nigeria
| | - Nwanyinnaya Akuagwu Nwogu
- Materials and Energy Technology Department, Projects Development Institute (PRODA), Emene Industrial Layout, P.M.B. 01609, Enugu State, Nigeria
| | - Alexander Iheanyichukwu Opara
- Department of Geology, School of Physical Sciences, Federal University of Technology Owerri, PMB 1526, Imo State, Nigeria
| | - Albert Chibuzo Agulanna
- Materials and Energy Technology Department, Projects Development Institute (PRODA), Emene Industrial Layout, P.M.B. 01609, Enugu State, Nigeria
| | - Amarachi Udoka Nkwoada
- Department of Chemistry, School of Physical Sciences, Federal University of Technology Owerri, PMB 1526 Imo State, Nigeria E-mail:
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8
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Abdou MM, Soliman AGA, Kobisy AS, Abu-Rayyan A, Al-Omari M, Alshwyeh HA, Ragab AH, Al Shareef HF, Ammar NS. Preparation and Evaluation of Phenol Formaldehyde-Montmorillonite and Its Utilization in the Adsorption of Lead Ions from Aqueous Solution. ACS OMEGA 2024; 9:12015-12026. [PMID: 38496995 PMCID: PMC10938315 DOI: 10.1021/acsomega.3c09830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 03/19/2024]
Abstract
In this study, phenol formaldehyde-montmorillonite (PF-MMT) was prepared and used for lead ion (Pb2+) adsorption. Batch adsorption experiments were conducted to determine the optimal conditions. The calculated adsorption equilibrium (q) revealed that pseudo-second-order (PSO) and Langmuir isotherm models best fit the experimental data, suggesting chemisorption as the main mechanism. An adsorption capacity (qmax) of 243.9 mg/g was achieved. Fourier transform infrared (FTIR) analysis showed new peaks in PF-MMT-Pb, indicating metal complexation. Scanning electron microscopy (SEM) imaging displayed distinct Pb2+ clusters on the adsorbent surface. Adsorption was rapid, attaining equilibrium within 90 min. Effects of time, dose, concentration, and pH were systematically investigated to optimize the process. Lead ion removal efficiency reached 98.33% under optimum conditions after 90 min. The adsorption process was chemisorption based on the Dubinin-Kaganer-Radushkevich model with a free energy of 14,850 J/mol. The substantial adsorption capacity, rapid kinetics, and high removal efficiency highlight PF-MMT's potential for effective Pb2+ removal from aqueous solution.
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Affiliation(s)
- Moaz M. Abdou
- Egyptian
Petroleum Research Institute, Cairo 11727, Egypt
| | | | - Atef S. Kobisy
- Egyptian
Petroleum Research Institute, Cairo 11727, Egypt
| | - Ahmed Abu-Rayyan
- Faculty
of Science, Applied Science Private University, Amman 11931, Jordan
| | - Mohammad Al-Omari
- Faculty
of Science, Applied Science Private University, Amman 11931, Jordan
| | - Hussah A. Alshwyeh
- Department
of Biology, College of Science, Imam Abdulrahman
Bin Faisal University, Dammam 31441, Saudi Arabia
- Basic
& Applied Scientific Research Center (BASRC), Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Ahmed H. Ragab
- Chemistry
Department, College of Science, King Khalid
University, Abha 61413, Saudi Arabia
| | - Hossa F. Al Shareef
- Department
of Chemistry, College of Applied Sciences, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Nabila S. Ammar
- Water
Pollution Research Department, National
Research Centre, Giza 12622, Egypt
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9
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Ferreira DCM, Dos Santos TC, Coimbra JSDR, de Oliveira EB. Chitosan/carboxymethylcellulose polyelectrolyte complexes (PECs) are an effective material for dye and heavy metal adsorption from water. Carbohydr Polym 2023; 315:120977. [PMID: 37230616 DOI: 10.1016/j.carbpol.2023.120977] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/23/2023] [Accepted: 04/30/2023] [Indexed: 05/27/2023]
Abstract
Granular macroscopic chitosan/carboxymethylcellulose polyelectrolytic complexes (CHS/CMC macro-PECs) were produced and tested as adsorbents for six pollutants often present in wastewaters: sunset yellow (YS), methylene blue (MB), Congo red (CR) and safranin (S), cadmium (Cd2+) and lead (Pb2+). The optimum adsorption pH values at 25 °C were 3.0, 11.0, 2.0, 9.0, 10.0, and 9.0 for YS, MB, CR, S, Cd2+, and Pb2+, respectively. Kinetic studies indicated that the pseudos-econd order model best represented the adsorption kinetics of YS, MB, CR, and Cd2+, whereas the pseudo-first order model was the most suitable for S and Pb2+ adsorption. The Langmuir, Freundlich, and Redlich-Peterson isotherms were fitted to experimental adsorption data, with the Langmuir model providing the best fit. The maximum adsorption capacity (qmáx) of CHS/CMC macro-PECs for the removal of YS, MB, CR, S, Cd2+, and Pb2+ was 37.81, 36.44, 70.86, 72.50, 75.43, and 74.42 mg/g, respectively (corresponding to 98.91 %, 94.71 %, 85.73 %, 94.66 %, 98.46 %, and 97.14 %). Desorption assays showed that CHS/CMC macro-PECs can be regenerated after adsorbing any of the six pollutants studied, with possibility of reuse. These results provide an accurate quantitative characterization of the adsorption of organic and inorganic pollutants on CHS/CMC macro-PECs, indicating a novel technological applicability of these two inexpensive, easy-to-obtain polysaccharides for water decontamination.
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Affiliation(s)
- Danielle Cristine Mota Ferreira
- Equipe de Estudo de Materiais Alimentares (E(2)MA), Departamento de Tecnologia de Alimentos (DTA), Universidade de Viçosa (UFV), CEP 36570-900 Viçosa, MG, Brazil.
| | - Thaís Cristina Dos Santos
- Equipe de Estudo de Materiais Alimentares (E(2)MA), Departamento de Tecnologia de Alimentos (DTA), Universidade de Viçosa (UFV), CEP 36570-900 Viçosa, MG, Brazil
| | - Jane Sélia Dos Reis Coimbra
- Laboratório de Operações Unitárias (LOP), Departamento de Tecnologia de Alimentos (DTA), Universidade de Viçosa (UFV), CEP 36570-900 Viçosa, MG, Brazil
| | - Eduardo Basílio de Oliveira
- Equipe de Estudo de Materiais Alimentares (E(2)MA), Departamento de Tecnologia de Alimentos (DTA), Universidade de Viçosa (UFV), CEP 36570-900 Viçosa, MG, Brazil.
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10
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Zhao D, Fu C, Lin S, Xu Y, He H, Liu S, Shi X. Lead-imprinted polyvinylidene fluoride membrane for selective removal of lead from contaminated water: material fabrication, filtration application, and mechanism study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:94195-94204. [PMID: 37526830 DOI: 10.1007/s11356-023-28569-8] [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: 02/18/2023] [Accepted: 06/29/2023] [Indexed: 08/02/2023]
Abstract
The drinking water has become contaminated with lead in many countries across the world. In this study, a novel lead-imprinted polyvinylidene fluoride (PVDF) membrane was successfully fabricated for selective decontamination of lead from water. First of all, the membrane fabrication process was explored and optimized. The physical and chemical properties were then studied for a better understanding of the features of the membrane. The performance of lead removal by the adsorptive membrane was evaluated by systematic batch adsorption experiments, including pH effect, kinetics, isotherm, selectivity, and regeneration studies. The results indicated that the adsorptive membrane showed a high adsorption capacity of 40.59 mg Pb/g at the optimal pH of 5.5, fast kinetics of 2 h, high selectivity towards lead, and outstanding regeneration performance. The Langmuir equation fitted the isotherm better than the Freundlich equation, while the pseudo-second-order model and pore diffusion model well described the kinetics. The adsorptive membrane showed high selectivity towards lead in the lead/zinc binary solution. In the continuous filtration study, a small piece of adsorptive membrane could treat 3.75 L of lead solution. The XPS studies revealed that the lead uptake was mainly due to the complex reaction between lead and carboxyl and hydroxyl in the membrane.
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Affiliation(s)
- Dandan Zhao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao, 266033, China
- Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu, 611756, Sichuan, China
| | - Chen Fu
- Chengdu Academy of Environmental Sciences, Chengdu, 610072, China
| | - Sudan Lin
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao, 266033, China
| | - Yongzhi Xu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao, 266033, China
| | - Haoran He
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao, 266033, China
| | - Siyuan Liu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao, 266033, China
| | - Xueqing Shi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao, 266033, China.
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11
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Chelu M, Musuc AM, Popa M, Calderon Moreno JM. Chitosan Hydrogels for Water Purification Applications. Gels 2023; 9:664. [PMID: 37623119 PMCID: PMC10453846 DOI: 10.3390/gels9080664] [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: 07/24/2023] [Revised: 08/14/2023] [Accepted: 08/15/2023] [Indexed: 08/26/2023] Open
Abstract
Chitosan-based hydrogels have gained significant attention for their potential applications in water treatment and purification due to their remarkable properties such as bioavailability, biocompatibility, biodegradability, environmental friendliness, high pollutants adsorption capacity, and water adsorption capacity. This article comprehensively reviews recent advances in chitosan-based hydrogel materials for water purification applications. The synthesis methods, structural properties, and water purification performance of chitosan-based hydrogels are critically analyzed. The incorporation of various nanomaterials into chitosan-based hydrogels, such as nanoparticles, graphene, and metal-organic frameworks, has been explored to enhance their performance. The mechanisms of water purification, including adsorption, filtration, and antimicrobial activity, are also discussed in detail. The potential of chitosan-based hydrogels for the removal of pollutants, such as heavy metals, organic contaminants, and microorganisms, from water sources is highlighted. Moreover, the challenges and future perspectives of chitosan-based hydrogels in water treatment and water purification applications are also illustrated. Overall, this article provides valuable insights into the current state of the art regarding chitosan-based hydrogels for water purification applications and highlights their potential for addressing global water pollution challenges.
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Affiliation(s)
| | - Adina Magdalena Musuc
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (M.C.); (M.P.)
| | | | - Jose M. Calderon Moreno
- “Ilie Murgulescu” Institute of Physical Chemistry, 202 Spl. Independentei, 060021 Bucharest, Romania; (M.C.); (M.P.)
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12
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Abate C, Scala A, Giuffrè O, Piperno A, Pistone A, Foti C. From speciation study to removal of Pb 2+ from natural waters by a carnosine-based polyacrylamide/azlactone copolymer. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 335:117572. [PMID: 36848805 DOI: 10.1016/j.jenvman.2023.117572] [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: 12/03/2022] [Revised: 01/24/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
A deep speciation study on L-carnosine (CAR) and Pb2+ system was performed in aqueous solution with the aim to assess its potential use as a sequestering agent of metal cation. To determine the best conditions for Pb2+ complexation, potentiometric measurements were carried out over a wide range of ionic strength (0.15 ≤ I/≤ 1 mol/L) and temperature (15 ≤ T/°C ≤ 37), and thermodynamic interaction parameters (logβ, ΔH, ΔG and TΔS) were determined. The speciation studies allowed us to simulate sequestration ability of CAR toward Pb2+ under different conditions of pH, ionic strength and temperature and to establish a priori the conditions for the best removal performance, i.e., pH > 7 and I = 001 mol/L. This preliminary investigation was very useful in optimizing removal procedures and limiting subsequent experimental measurements for adsorption tests. Therefore, to exploit the binding ability of CAR for Pb2+ removal from aqueous solutions, CAR was covalently grafted on an azlactone-activated beaded-polyacrylamide resin (AZ) using an efficient click coupling reaction (78.3% of coupling efficiency). The carnosine-based resin (AZCAR) was analyzed by ThermoGravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC) and Differential Thermal Analysis (DTA). Morphology, surface area and pore size distribution were studied through a combination of Scanning Electron Microscope (SEM) and adsorption/desorption of N2 analyses according to the Brunauer-Emmett-Teller (BET) and Barret-Johner-Halenda (BJH) approaches. The adsorption capacity of AZCAR toward Pb2+ was investigated under conditions simulating the ionic strength and pH of different natural waters. The time needed to reach equilibrium in the adsorption process was 24 h, and the best performance was obtained at pH > 7, typical of most natural waters, with removal efficiency ranging from 90.8% (at I = 0.7 mol/L) to 99.0 (at I = 0.001 mol/L).
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Affiliation(s)
- Chiara Abate
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Angela Scala
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Ottavia Giuffrè
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Anna Piperno
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy
| | - Alessandro Pistone
- Department of Engineering, University of Messina, Contrada Di Dio I, 98166 Messina, Italy
| | - Claudia Foti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres 31, 98166 Messina, Italy.
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Altynbaeva LS, Mashentseva AA, Aimanova NA, Zheltov DA, Shlimas DI, Nurpeisova DT, Barsbay M, Abuova FU, Zdorovets MV. Eco-Friendly Electroless Template Synthesis of Cu-Based Composite Track-Etched Membranes for Sorption Removal of Lead(II) Ions. MEMBRANES 2023; 13:membranes13050495. [PMID: 37233556 DOI: 10.3390/membranes13050495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/03/2023] [Accepted: 05/05/2023] [Indexed: 05/27/2023]
Abstract
This paper reports the synthesis of composite track-etched membranes (TeMs) modified with electrolessly deposited copper microtubules using copper deposition baths based on environmentally friendly and non-toxic reducing agents (ascorbic acid (Asc), glyoxylic acid (Gly), and dimethylamine borane (DMAB)), and comparative testing of their lead(II) ion removal capacity via batch adsorption experiments. The structure and composition of the composites were investigated by X-ray diffraction technique and scanning electron and atomic force microscopies. The optimal conditions for copper electroless plating were determined. The adsorption kinetics followed a pseudo-second-order kinetic model, which indicates that adsorption is controlled by the chemisorption process. A comparative study was conducted on the applicability of the Langmuir, Freundlich, and Dubinin-Radushkevich adsorption models to define the equilibrium isotherms and the isotherm constants for the prepared composite TeMs. Based on the regression coefficients R2, it has been shown that the Freundlich model better describes the experimental data of the composite TeMs on the adsorption of lead(II) ions.
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Affiliation(s)
- Liliya Sh Altynbaeva
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
- Department of Chemistry, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Anastassiya A Mashentseva
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
- Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Nurgulim A Aimanova
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
- Department of Chemistry, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Dmitriy A Zheltov
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
| | - Dmitriy I Shlimas
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
- Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Dinara T Nurpeisova
- Department of Chemistry, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Murat Barsbay
- Department of Chemistry, Hacettepe University, Ankara 06800, Turkey
| | - Fatima U Abuova
- Department of Nuclear Physics, New Materials and Technologies, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Maxim V Zdorovets
- The Institute of Nuclear Physics of the Republic of Kazakhstan, Almaty 050032, Kazakhstan
- Department of Intelligent Information Technologies, The Ural Federal University, Yekaterinburg 620002, Russia
- Engineering Profile Laboratory, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
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14
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Abate C, Piperno A, Fragoso A, Giuffrè O, Mazzaglia A, Scala A, Foti C. Thermodynamic and voltammetric study on carnosine and ferrocenyl-carnosine. Dalton Trans 2023; 52:3699-3708. [PMID: 36857639 DOI: 10.1039/d2dt04093j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
A potentiometric study on the interactions of L-carnosine (CAR) (2-[(3-aminopropanoyl)amino]-3-(1H-imidazol-5-yl)propanoic acid) with two toxic metal cations, Hg2+ and Cd2+, is reported here. The elucidation of the metal (M2+)-CAR interactions in aqueous solution highlighted the speciation model for each system, the dependence of the formation constants of the complex species on ionic strength (0.15 ≤ I/mol L-1 ≤ 1) and temperature (288.15 ≤ T/K ≤ 310.15) and changes in enthalpy and entropy. The sequestering ability of CAR towards the two metal ions was quantified and compared with that with Pb2+, previously determined. Considering the complexing ability of CAR and its unclear electrochemical properties, a more electroactive derivative, the ferrocenyl-carnosine (FcCAR), was synthesized and its complexing ability was evaluated by UV-vis spectroscopy. FcCAR electrochemical properties were investigated by Cyclic Voltammetry (CV) and Differential Pulse Voltammetry (DPV) on Screen-Printed Electrodes (SPEs), to evaluate its sensing properties. Electrochemical responses in the presence of Hg2+ and Pb2+ have been shown to be promising for the electrochemical detection of these metal cations in aqueous environment.
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Affiliation(s)
- Chiara Abate
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Anna Piperno
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Alex Fragoso
- Nanobiotechnology & Bioanalysis Group, Departament d'Enginyeria Química, Universitat Rovira i Virgili, Avinguda Països Catalans 26, 43007, Tarragona, Spain
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Antonino Mazzaglia
- Consiglio Nazionale delle Ricerche, Istituto per lo Studio dei Materiali Nanostrutturati (CNR-ISMN), URT di Messina c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Angela Scala
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy.
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy.
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15
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Badawy AA, Abdel Rehim MH, Turky GM. Charge transport and heavy metal removal efficacy of graphitic carbon nitride doped with CeO 2. RSC Adv 2023; 13:8955-8966. [PMID: 36936826 PMCID: PMC10020990 DOI: 10.1039/d3ra00844d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/02/2023] [Indexed: 03/19/2023] Open
Abstract
Doping of graphitic carbon nitride (g-C3N4) with semiconductors prevents electron-hole recombination and enhances adsorption capacity. This work investigates the synthesis of a water remediation material using g-C3N4 doped with CeO2 using two different techniques. The chemical structures of the doped g-C3N4 samples were confirmed using FTIR, XRD, XPS and their morphology was studied using SEM-EDX. Charge transport through the doped materials was illustrated by a comprehensive dielectric study using broadband spectroscopy. The ability of doped g-C3N4 to adsorb heavy metals was investigated thoroughly in the light of applying different parameters such as temperature, pH, time, and concentration. The results showed that the mode of doping of g-C3N4 by CeO2 strongly affected its adsorption capacity. However, g-C3N4 doped with CeO2 using the first mode adsorbed 998.4 mg g-1 in case of Pb2+ and 448 for Cd2+. Kinetic study revealed that the adsorption process obeyed PSORE as its q exp e is close to its q cal e and the rate-controlling step involved coordination among the synthetic materials and the heavy metal ions. The recovery of Pb2+ and Cd2+ ions from various sorbents was investigated by utilizing different molar concentrations of HNO3 and indicated no significant change in the sorption capability after three different runs. This study has demonstrated an efficient method to obtain a highly efficient adsorbent for removing heavy metals from waste water.
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Affiliation(s)
- Abdelrahman A Badawy
- Physical Chemistry Department, Institute of Advanced Material Technology and Mineral Resources Research, National Research Centre Cairo Egypt
| | - Mona H Abdel Rehim
- Packaging Materials Department, National Research Centre Elbehoth Street 33 Cairo 12622 Dokki Egypt
| | - Gamal M Turky
- Microwave Physics and Dielectrics Department, National Research Centre Elbehoth Street 33 12622 Dokki Cairo Egypt
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16
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Synthesis of Chemically Modified Acid-Functionalized Multiwall Carbon Nanotubes with Benzimidazole for Removal of Lead and Cadmium Ions from Wastewater. Polymers (Basel) 2023; 15:polym15061421. [PMID: 36987202 PMCID: PMC10056040 DOI: 10.3390/polym15061421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/08/2023] [Accepted: 03/08/2023] [Indexed: 03/18/2023] Open
Abstract
In this work, acid-functionalized multiwalled carbon (MWCNTs–CO2H) nanotube was successfully functionalized with a heterocyclic scaffold, namely benzimidazole, to give novel functionalized multiwalled carbon nanotubes (BI@MWCNTs). Then, FTIR, XRD, TEM, EDX, Raman spectroscopy, DLS, and BET analyses were used to characterize the synthesized BI@MWCNTs. The effectiveness of the adsorption of two heavy metal ions, Cd2+ and Pb2+, in single metal and mixed metal solutions on the prepared material was investigated. Influencing parameters for the adsorption method, for example duration, pH, starting metal concentration, and BI@MWCNT dosage, were examined for both metal ions. Moreover, adsorption equilibrium isotherms fit with the Langmuir and Freundlich models perfectly, while the intra-particle diffusion models provide pseudo-second order adsorption kinetics. The adsorption of Cd2+ and Pb2+ ions onto BI@MWCNTs revealed an endothermic and a spontaneous method with great affinity as a result of the negative values of Gibbs free energy (ΔG) and the positive values of enthalpy (ΔH) and entropy (ΔS). Both Pb2+ and Cd2+ ions were completely eliminated from aqueous solution (100 and 98%, respectively) using the prepared material. Additionally, BI@MWCNTs have a high adsorption capacity and were regenerated in a simple way and reused for six cycles, which make them a cost-effective and efficient absorbent for the removal of such heavy metal ions from wastewater.
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17
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Pyrzynska K. Preconcentration and Removal of Pb(II) Ions from Aqueous Solutions Using Graphene-Based Nanomaterials. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16031078. [PMID: 36770084 PMCID: PMC9921202 DOI: 10.3390/ma16031078] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/21/2023] [Accepted: 01/25/2023] [Indexed: 06/01/2023]
Abstract
Direct determination of lead trace concentration in the presence of relatively complex matrices is often a problem. Thus, its preconcentration and separation are necessary in the analytical procedures. Graphene-based nanomaterials have attracted significant interest as potential adsorbents for Pb(II) preconcentration and removal due to their high specific surface area, exceptional porosities, numerous adsorption sites and functionalization ease. Particularly, incorporation of magnetic particles with graphene adsorbents offers an effective approach to overcome the separation problems after a lead enrichment step. This paper summarizes the developments in the applications of graphene-based adsorbents in conventional solid-phase extraction column packing and its alternative approaches in the past 5 years.
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Affiliation(s)
- Krystyna Pyrzynska
- Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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18
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Kamaruddin NAL, Taha MF, Wilfred CD. Synthesis and Characterization of Novel Thiosalicylate-based Solid-Supported Ionic Liquid for Removal of Pb(II) Ions from Aqueous Solution. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020830. [PMID: 36677888 PMCID: PMC9861467 DOI: 10.3390/molecules28020830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/01/2023] [Accepted: 01/10/2023] [Indexed: 01/17/2023]
Abstract
The main objectives of this study are to synthesize a new solid-supported ionic liquid (SSIL) that has a covalent bond between the solid support, i.e., activated silica gel, with thiosalicylate-based ionic liquid and to evaluate the performance of this new SSIL as an extractant, labelled as Si-TS-SSIL, and to remove Pb(II) ions from an aqueous solution. In this study, 1-methyl-3-(3-trimethoxysilylpropyl) imidazolium thiosalicylate ([MTMSPI][TS]) ionic liquid was synthesized and the formation of [MTMSPI][TS] was confirmed through structural analysis using NMR, FTIR, IC, TGA, and Karl Fischer Titration. The [MTMSPI][TS] ionic liquid was then chemically immobilized on activated silica gel to produce a new thiosalicylate-based solid-supported ionic liquid (Si-TS-SSIL). The formation of these covalent bonds on Si-TS-SSIL was confirmed by solid-state NMR analysis. Meanwhile, BET analysis was performed to study the surface area of the activated silica gel and the prepared Si-TS-SSIL (before and after washing with solvent) with the purpose to show that all physically immobilized [MTMSPI][TS] has been washed off from Si-TS-SSIL, leaving only chemically immobilized [MTMSPI][TS] on Si-TS-SSIL before proceeding with removal study. The removal study of Pb(II) ions from an aqueous solution was carried out using Si-TS-SSIL as an extractant, whereby the amount of Pb(II) ions removed was determined by AAS. In this removal study, the experiments were carried out at a fixed agitation speed (400 rpm) and fixed amount of Si-TS-SSIL (0.25 g), with different contact times ranging from 2 to 250 min at room temperature. The maximum removal capacity was found to be 8.37 mg/g. The kinetics study was well fitted with the pseudo-second order model. Meanwhile, for the isotherm study, the removal process of Pb(II) ions was well described by the Freundlich isotherm model, as this model exhibited a higher correlation coefficient (R2), i.e., 0.99, as compared to the Langmuir isotherm model.
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Affiliation(s)
- Nur Anis Liyana Kamaruddin
- Centre of Research in Ionic Liquids, Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
- Correspondence: ; Tel.: +60-1129019793
| | - Mohd Faisal Taha
- Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
| | - Cecilia Devi Wilfred
- Fundamental and Applied Sciences Department, Universiti Teknologi PETRONAS, Seri Iskandar, Perak 32610, Malaysia
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Wang H, Wen Y, Ding Y, Yue Z, Xu D, Liu Y, Zhang Y, Xu R, Zeng W. Rapid and Effective Lead Elimination Using Cow Manure Derived Biochar: Balance between Inherent Phosphorus Release and Pollutants Immobilization. TOXICS 2022; 11:1. [PMID: 36668727 PMCID: PMC9861172 DOI: 10.3390/toxics11010001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Cow manure derived biochar (CMBC) can serve as a promising functional material, and CMBC can be regarded as an ecofriendly approach compared to conventional ones. CM bioadsorbent can be employed for heavy metal immobilization (such as for lead) as well as an amendment to increase soil fertility (e.g., phosphorus). Few studies have examined the surface interactions between pollutants and bioadsorbents when inherent nutrient release is present. In this work, CMBC was prepared and applied for Pb(II) removal, and the vital roles of released phosphorus from CMBC were comprehensively disclosed. Furthermore, CMBC could immobilize part of the Pb(II) in soil and promote plant growth. CM400 was an effective adsorbent whose calculated Qe reached 691.34 mg·g-1, and it rapidly adsorbed 98.36 mg·g-1 of Pb(II) within 1 min. The adsorption mechanisms of Pb(II) by CMBC include ion exchange, physical adsorption, electrostatic attraction, chemical precipitation, surface complexation, and cation-π bond interaction. Based on the residual phosphorus content and adsorption effect, complexation rather than the chemical precipitation had a greater contribution toward adsorption. Besides, as the concentration of Pb(II) increased, the main adsorption mechanisms likely transformed from chemical precipitation to ion exchange and complexation. CMBC not only had a good effect on Pb(II) removal in the solution, but also immobilized the Pb(II) in soil to restrain plant uptake as well as promote plant growth. The main novelty of this work is providing more insights to the cow manure bio adsorbent on Pb immobilization and phosphorus release. This study is expected to serve as a basis and reference for analyzing the release effects of inherent nutrients and the interfacial behaviors with heavy metals when using CMBC and other nutrient-rich carbon-based fertilizers for pollution control.
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Affiliation(s)
- Huabin Wang
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China
- Yunnan Key Laboratory of Rural Energy Engineering, Kunming 650500, China
| | - Yi Wen
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China
- Yunnan Key Laboratory of Rural Energy Engineering, Kunming 650500, China
| | - Yu Ding
- Baoshan City Longyang Rural Energy Workstation, Baoshan 678000, China
| | - Zhiqiang Yue
- Yuxi Agricultural Environmental Protection and Rural Energy Workstation, Yuxi 653100, China
| | - Dan Xu
- Baoshan City Longyang Rural Energy Workstation, Baoshan 678000, China
| | - Ying Liu
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China
- Yunnan Key Laboratory of Rural Energy Engineering, Kunming 650500, China
| | - Yong Zhang
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China
- Yunnan Key Laboratory of Rural Energy Engineering, Kunming 650500, China
| | - Rui Xu
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China
- Yunnan Key Laboratory of Rural Energy Engineering, Kunming 650500, China
| | - Weiqing Zeng
- School of Energy and Environment Science, Yunnan Normal University, Kunming 650500, China
- Yuxi Agricultural Environmental Protection and Rural Energy Workstation, Yuxi 653100, China
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20
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Lazo-Fraga AR, Hernández MP, Díaz-García AM, Viltres-Portales M, Estévez-Hernández O. 3,3-Disubstituted 1-acylthioureas as ionophores for Pb(II)-ion selective electrodes: physical and chemical characterization of the sensing membranes. PHOSPHORUS SULFUR 2022. [DOI: 10.1080/10426507.2022.2152814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ana Rosa Lazo-Fraga
- Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Vedado, La Habana, Cuba
| | - Mayra Paulina Hernández
- Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Vedado, La Habana, Cuba
| | | | - Marcia Viltres-Portales
- Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Vedado, La Habana, Cuba
| | - Osvaldo Estévez-Hernández
- Instituto de Ciencia y Tecnología de Materiales (IMRE), Universidad de La Habana, Vedado, La Habana, Cuba
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21
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Chemical Modification of Neem (Azadirachta indica) Biomass as Bioadsorbent for Removal of Pb2+ Ion from Aqueous Waste Water. ADSORPT SCI TECHNOL 2022. [DOI: 10.1155/2022/7813513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
In this study, neem biomass (a mixture of neem leaf and bark), obtained from the matured neem tree, which is an eco-friendly and low-cost material was selected as a bioadsorbent to remove lead metal ion (Pb2+) from aqueous solutions. Neem biomass-based bioadsorbent having a carboxylic group was prepared by activation using chemical modification by NaOH and citric acid with a very simple method. The optimal activation conditions were determined as 37 min, 120°C, in 0.73 M citric acid, with a sample/acid ratio of 1/100 (mass/volume). To determine the basic properties such as chemical structure, porosity, and surface properties of the neem biomass (NB) and chemically modified neem biomass (CMNB), they were characterized by BET, FTIR, SEM, XRD, and pHpzc methods. It was observed that activation has improved the adsorption capacity of the NB and also caused a more amorphous structure. The effects of adsorption parameters such as pH (2–7), contact time (10–110 min), initial Pb2+ ion concentration (100–300 g/L), and bioadsorbent dosage (01–1.1 g/L) on percentage removal of Pb2+ ion were studied. Maximum removal of Pb2+ ion (97.29%) was recorded at 0.9 g/L bioadsorbent dosage, 50 min contact time, pH of 6, and initial metal ion concentration of 100 mg/L. Kinetics and isotherm studies showed that the adsorption mechanism of Pb2+ ion using CMNB follows pseudosecond-order while isotherm studies fit with both models but, relatively, Freundlich model better fit having a little higher
. The outcome specifies that the modified bioadsorbent can be utilized as a good and low-cost alternative for the treatment of effluent containing lead (II) ions in water.
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Al-Gethami W, Alhashmialameer D, Al-Qasmi N, Ismail SH, Sadek AH. Design of a Novel Nanosensors Based on Green Synthesized CoFe 2O 4/Ca-Alginate Nanocomposite-Coated QCM for Rapid Detection of Pb(II) Ions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3620. [PMID: 36296809 PMCID: PMC9610289 DOI: 10.3390/nano12203620] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
Pb(II) is a significant contaminant that is known to have negative effects on both humans and animals. Recent industrial operations have exacerbated these consequences, and their release of several contaminants, including lead ions, has drawn attention to the potential effects on human health. Therefore, there is a lot of interest in the rapid, accurate, and selective detection of lead ions in various environmental samples. Sensors-based nanomaterials are a significant class among the many tools and methods developed and applied for such purposes. Therefore, a novel green synthesized cobalt ferrite (CoFe2O4) nanoparticles and functionalized CoFe2O4/Ca-alginate nanocomposite was designed and successfully synthesized for the fabrication of nanoparticles and nanocomposite-coated quartz crystal microbalance (QCM) nanosensors to detect the low concentrations of Pb(II) ions in the aqueous solutions at different temperatures. The structural and morphological properties of synthesized nanoparticles and nanocomposite were characterized using different tools such as X-ray diffraction (XRD), N2 adsorption-desorption isotherm, dynamic light scattering (DLS), zeta potential analyzer (ζ-potential), atomic force microscopy (AFM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDX). The QCM results revealed that the green synthesized CoFe2O4 nanoparticles and functionalized CoFe2O4/Ca-alginate nanocomposite-coated QCM nanosensors exhibited high sensitivity, stability, and rapid detection of Pb(II) ions in the aqueous solutions at different temperature. The lowest detection limit for Pb(II) ions in the aqueous solutions could reach 125 ng, which resulted in a frequency shift of 27.49 ± 0.81, 23.63 ± 0.90, and 19.57 ± 0.86 Hz (Δf) for the QCM detector coated with green synthesized CoFe2O4 nanoparticles thin films, and 25.85 ± 0.85, 33.87 ± 0.73, and 6.87 ± 0.08 Hz (Δf) for the QCM detector coated with CoFe2O4/Ca-Alg nanocomposite thin films in a real-time of about 11, 13, and 13 min at 25 °C, 35 °C, and 45 °C, respectively. In addition, the resonance frequency change results showed the superiority of functionalized CoFe2O4/Ca-alginate nanocomposite coated QCM nanosensor over CoFe2O4 nanoparticles towards Pb(II) ions detecting, which attributed to the beneficial properties of alginate biopolymer.
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Affiliation(s)
- Wafa Al-Gethami
- Chemistry Department, Faculty of Science, Taif University, Al-Hawiah, Taif City P.O. Box 11099, Saudi Arabia
| | - Dalal Alhashmialameer
- Chemistry Department, Faculty of Science, Taif University, Al-Hawiah, Taif City P.O. Box 11099, Saudi Arabia
| | - Noha Al-Qasmi
- Chemistry Department, Faculty of Science, Taif University, Al-Hawiah, Taif City P.O. Box 11099, Saudi Arabia
| | - Sameh H. Ismail
- Faculty of Nanotechnology for Postgraduate Studies, Sheikh Zayed Campus, Cairo University, 6th October City, Giza 12588, Egypt
| | - Ahmed H. Sadek
- Faculty of Nanotechnology for Postgraduate Studies, Sheikh Zayed Campus, Cairo University, 6th October City, Giza 12588, Egypt
- Zewail City of Science, Technology and Innovation, 6th October City, Giza 12578, Egypt
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