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Chauhan K, Singh P, Sen K, Singhal RK, Thakur VK. Recent Advancements in the Field of Chitosan/Cellulose-Based Nanocomposites for Maximizing Arsenic Removal from Aqueous Environment. ACS OMEGA 2024; 9:27766-27788. [PMID: 38973859 PMCID: PMC11223156 DOI: 10.1021/acsomega.3c09713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 05/27/2024] [Accepted: 06/05/2024] [Indexed: 07/09/2024]
Abstract
Water remediation, acknowledged as a significant scientific topic, guarantees the safety of drinking water, considering the diverse range of pollutants that can contaminate it. Among these pollutants, arsenic stands out as a particularly severe threat to human health, significantly compromising the overall quality of life. Despite widespread awareness of the harmful effects of arsenic poisoning, there remains a scarcity of literature on the utilization of biobased polymers as sustainable alternatives for comprehensive arsenic removal in practical concern. Cellulose and chitosan, two of the most prevalent biopolymers in nature, provide a wide range of potential benefits in cutting-edge industries, including water remediation. Nanocomposites derived from cellulose and chitosan offer numerous advantages over their larger equivalents, including high chelating properties, cost-effective production, strength, integrity during usage, and the potential to close the recycling loop. Within the sphere of arsenic remediation, this Review outlines the selection criteria for novel cellulose/chitosan-nanocomposites, such as scalability in synthesis, complete arsenic removal, and recyclability for technical significance. Especially, it aims to give an overview of the historical development of research in cellulose and chitosan, techniques for enhancing their performance, the current state of the art of the field, and the mechanisms underlying the adsorption of arsenic using cellulose/chitosan nanocomposites. Additionally, it extensively discusses the impact of shape and size on adsorbent efficiency, highlighting the crucial role of physical characteristics in optimizing performance for practical applications. Furthermore, this Review addresses regeneration, reuse, and future prospects for chitosan/cellulose-nanocomposites, which bear practical relevance. Therefore, this Review underscores the significant research gap and offers insights into refining the structural features of adsorbents to improve total inorganic arsenic removal, thereby facilitating the transition of green-material-based technology into operational use.
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Affiliation(s)
- Kalpana Chauhan
- Chemistry
under School of Engineering and Technology, Central University of Haryana, Mahendragarh, Haryana 123031, India
| | - Prem Singh
- Shoolini
University, Solan, Himachal Pradesh 173229, India
| | - Kshipra Sen
- Shoolini
University, Solan, Himachal Pradesh 173229, India
| | - Rakesh Kumar Singhal
- Analytical
Chemistry Division, Bhabha Atomic Research
Centre, Mumbai 400085, India
| | - Vijay Kumar Thakur
- Biorefining
and Advanced Materials Research Centre, Scotland’s Rural College (SRUC), Kings Buildings, West Mains Road, Edinburgh EH9 3JG, United Kingdom
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Bao J, Feng Y, Pan Y, Jiang J. Modified approaches to prepare nano-magnesium silicates with hierarchical pore structure and their performance towards adsorption of Cd 2. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:89784-89793. [PMID: 37458882 DOI: 10.1007/s11356-023-28527-4] [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: 03/28/2023] [Accepted: 06/26/2023] [Indexed: 08/11/2023]
Abstract
A series of flower-like magnesium silicate samples with hierarchical pore were prepared by the solvothermal method under template-free conditions using sodium dodecyl sulfate as the modifier and ethanol-water as the solvent. These samples were characterized by various methods and were evaluated for the adsorption of heavy metal Cd2+. The results showed that the adding modifier did not change the crystal structure of the magnesium silicate samples. In the range of 2~80 nm, they still showed hierarchical pore distribution mainly composed of mesopores and macropores, which facilitates the rapid transport of adsorbent within the pore channel. Therefore, the adsorption of Cd2+ was greatly accelerated. Meanwhile, the larger specific surface area (as high as 553 m2/g) of these samples significantly increased the theoretical maximum adsorption amount of Cd2+ up to 295.3 mg/g due to more available adsorption sites. The adsorption dynamic behavior of the samples on Cd2+ was in accordance with the pseudo-second-order adsorption model, and their thermodynamic behavior follows the Langmuir adsorption model. The adsorption mechanism of the sample was proposed as electrostatic adsorption and exchange of metal ions and acidic groups on its surface with ions in solution. The obtained magnesium silicate materials are expected to remove heavy metals from wastewater.
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Affiliation(s)
- Jing Bao
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009, China.
| | - Yongjun Feng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Beijing, 100029, China
| | - Yong Pan
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Juncheng Jiang
- Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 210009, China.
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Azeez L, Lateef A, Olabode O. An overview of biogenic metallic nanoparticles for water treatment and purification: the state of the art. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:851-873. [PMID: 37651325 PMCID: wst_2023_255 DOI: 10.2166/wst.2023.255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
The environment is fundamental to human existence, and protecting it from dangerous contaminants should be a top priority for all stakeholders. Reducing garbage output has helped, but as the world's population grows, more waste will be generated. Tons of waste inadvertently and advertently received by environmental matrixes adversely affect the sustainable environment. The pollution caused by these activities affects the environment and human health. Conventional remediation processes ranging from chemical, physical, and biological procedures use macroaggregated materials and microorganisms to degrade or remove pollutants. Undesirable limitations of expensiveness, disposal challenges, maintenance, and formation of secondary contaminants abound. Additionally, multiple stages of treatments to remove different contaminants are time-consuming. The need to avoid these limitations and shift towards sustainable approaches brought up nanotechnology options. Currently, nanomaterials are being used for environmental rejuvenation that involves the total degradation of pollutants without secondary pollution. As nanoparticles are primed with vast and modifiable reactive sites for adsorption, photocatalysis, and disinfection, they are more useful in remediating pollutants. Review articles on metallic nanoparticles usually focus on chemically synthesized ones, with a particular focus on their adsorption capacity and toxicities. Therefore, this review evaluates the current status of biogenic metallic nanoparticles for water treatment and purification.
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Affiliation(s)
- Luqmon Azeez
- Department of Pure and Applied Chemistry, Osun State University, Osogbo, Nigeria E-mail:
| | - Agbaje Lateef
- Nanotechnology Research Group (NANO+), Laboratory of Industrial Microbiology and Nanobiotechnology, Department of Pure and Applied Biology, Ladoke Akintola University of Technology, PMB 4000, Ogbomoso, Nigeria
| | - Olalekan Olabode
- Department of Pure and Applied Chemistry, Osun State University, Osogbo, Nigeria; Department of Chemistry, Mississippi State University, MS 39762-9573, USA
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Solanki K, Sharma S, Yadav S, Kaushik B, Rana P, Dixit R, Sharma RK. Hierarchical 3D Flower-like Metal Oxides Micro/Nanostructures: Fabrication, Surface Modification, Their Crucial Role in Environmental Decontamination, Mechanistic Insights, and Future Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300394. [PMID: 36950767 DOI: 10.1002/smll.202300394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Hierarchical micro/nanostructures are constructed by micro-scaled objects with nanoarchitectures belonging to an interesting class of crystalline materials that has significant applications in diverse fields. Featured with a large surface-to-volume ratio, facile mass transportation, high stability against aggregation, structurally enhanced adsorption, and catalytical performances, three dimenisional (3D) hierarchical metal oxides have been considered as versatile functional materials for waste-water treatment. Due to the ineffectiveness of traditional water purification protocols for reclamation of water, lately, the use of hierarchical metal oxides has emerged as an appealing platform for the remediation of water pollution owing to their fascinating and tailorable physiochemical properties. The present review highlights various approaches to the tunable synthesis of hierarchical structures along with their surface modification strategies to enhance their efficiencies for the removal of different noxious substances. Besides, their applications for the eradication of organic and inorganic contaminants have been discussed comprehensively with their plausible mechanistic pathways. Finally, overlooked aspects in this field as well as the major roadblocks to the implementation of these metal oxide architectures for large-scale treatment of wastewater are provided here. Moreover, the potential ways to tackle these issues are also presented which may be useful for the transformation of current water treatment technologies.
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Affiliation(s)
- Kanika Solanki
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Shivani Sharma
- Department of Chemistry, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - Sneha Yadav
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Bhawna Kaushik
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Pooja Rana
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Ranjana Dixit
- Department of Chemistry, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - R K Sharma
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
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He X, Lu J, Wei H, Liu B. Macroporous honeycomb-like magnesium oxide fabricated as long-life and outstanding Pb(II) adsorbents combined with mechanism insight. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:38380-38393. [PMID: 36580249 DOI: 10.1007/s11356-022-24525-0] [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: 08/09/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
The macroporous honeycomb-like MgO (MHM) had been successfully prepared by hard template method using polystyrene (PS) spheres with different particle sizes of about 400, 600, and 800 nm, respectively. The adsorption performance (3700, 3470, and 3087 mg/g) and specific surface areas (64.0, 51.4, and 34.4 m2/g) of MHM materials were inversely proportional to their pore diameters. Among the prepared MHM materials, MHM-400 exhibited the most excellent adsorption performance of 3700 mg/g towards Pb(II) at 25 °C. In this study, the macropore size in MHM played a major role in the adsorption process; Dubinin-Radushkevich (D-R) model further indicated that Pb(II) removal by MHM-400 was dominated by chemical adsorption. The thermodynamic analysis (ΔG0 < 0, ΔH0 > 0, and ΔS0 > 0) revealed that the Pb(II) adsorption was spontaneous and endothermic. After storing for 360 days, the Pb(II) removal efficiency of MHM-400 was still higher than 98.2%, exhibiting ultra-long life for Pb(II) capture. MHM-400 also exhibited high anti-interference ability towards typically coexisting ions (Na+ and K+). According to the density functional theory (DFT) calculation, the Pb could be adsorbed on the top site of the oxygen atom at the surface of the cubic MgO (200) plane; the adsorption energy (Ead) was 0.159 eV. The XRD and FTIR analyses revealed the further formation of Pb3(CO3)2(OH)2 and PbO after Pb(II) adsorption. Furthermore, MHM-400 could effectively remove both Cd(II) and Pb(II) ions from wastewater within 20 min, and the adsorption efficiency achieved > 99%, suggesting that MHM-400 was a potential material for effective Pb(II) removal.
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Affiliation(s)
- Xingyu He
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 1958 Kejia Ave, Ganzhou City, Jiangxi Province, China
| | - Jiarui Lu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 1958 Kejia Ave, Ganzhou City, Jiangxi Province, China
| | - Hong Wei
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 1958 Kejia Ave, Ganzhou City, Jiangxi Province, China
| | - Baixiong Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, 1958 Kejia Ave, Ganzhou City, Jiangxi Province, China.
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Penke YK, Kar KK. A review on multi-synergistic transition metal oxide systems towards arsenic treatment: Near molecular analysis of surface-complexation (synchrotron studies/modeling tools). Adv Colloid Interface Sci 2023; 314:102859. [PMID: 36934514 DOI: 10.1016/j.cis.2023.102859] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 12/25/2022] [Accepted: 02/13/2023] [Indexed: 02/23/2023]
Abstract
The science and interface chemistry between the arsenic (As) anions and the different adsorbent systems have been gaining interest in recent years in environmental remediation applications. Metal-oxides and the corresponding hybrid systems have shown promising performance as novel adsorbents in various treatment technologies. The abundance, surface chemistry, high surface area (active-centres), various synthesis and functionalization methodologies, and good recyclability make these metal oxide-based nanomaterials as potential remediating agents for As oxyanions. This work critically reviews eight different platforms focused on the arsenic contamination issue, where the first classification describes the origin of arsenic contamination and presents geographical and demo-graphical considerations. The following section briefs the state-of-the-art remediation techniques for arsenic treatment with a comparative evaluation. An emphasized discussion has been provided regarding the adsorption and classification of various metal oxide adsorbents. In the next classification, various multi-synergism abilities like Redox activity, Surface functional groups, Surface area/morphology, Heterogeneous catalysis, Reactive oxygen species, Photo-catalytic/electro-catalytic reactions, and Electrosorption are detailed. The classification of various characterization tools for accessing the arsenic remediation qualitatively and quantitatively are given in the fifth chapter. The first-of-its-kind dedicated analysis has been given on the surface complexation aspects of the arsenic speciation onto various metal adsorbent systems using synchrotron results, surface-complexation modeling, and molecular simulation (e.g., DFT) in the sixth chapter. The current sensing applications of these novel nano-material systems for arsenic determination using colorimetric and electrochemical-based analytical tools and a note about the economic parameters, i.e., regeneration aspects of various adsorbent systems/the sustainable applications of the treated sludge materials, are provided in the final sections. This work makes a critical analysis of 'Environmental Nanotechnology' towards 'Arsenic Treatment'.
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Affiliation(s)
- Yaswanth K Penke
- Advanced Nanoengineering Materials Laboratory, Indian Institute of Technology Kanpur, Kanpur 208016, U.P, India; Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur 208016, U.P, India.
| | - Kamal K Kar
- Advanced Nanoengineering Materials Laboratory, Indian Institute of Technology Kanpur, Kanpur 208016, U.P, India; Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur 208016, U.P, India; Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, U.P, India.
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7
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Penke YK, Murugan PA, Matheshwaran S, Ramkumar J, Kar KK. Anti-bacterial and arsenic remediation insights in aqueous systems onto heterogeneous metal oxide (Cu 0.52Al 0.1Fe 0.47O 4)/rGO hybrid: an approach towards airborne microbial degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:811-822. [PMID: 35904734 DOI: 10.1007/s11356-022-22169-8] [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: 04/21/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Copper-based ternary metal oxide (i.e., Cu0.52Al0.01Fe0.47O4) impregnated reduced graphene oxide nanohybrid is verified for microbial and arsenic treatment. Growth inhibition of colonies are observed around 99.99% (E. coli), and 99.83% (S. aureus) at 10-20 μg/mL of hybrid dosage, respectively. The inhibition rates for both the colonies are increased to 99.9998% at 80 μg/mL. TEM images have shown insight of cell-content/lipid leakage behavior after inoculating with the hybrid. The efficient hindrance towards microbial colony growth is attributed to better charge transfer, reactive oxygen species generation, and metal-ion release. Maximum arsenic sorption capacities are observed around 248 and 314 mg/g for As(III), and As(V), respectively (Ci ~ 500 ppm). Surface morphology studies onto arsenic adsorption are reported with atomic force microscope, and FT-IR/Raman analysis. A detailed discussion onto individual spectra of As 3d spectra confirmed the occurrence of redox transformation in arsenic species [As(III)]. The variation in the quantity (at. %) of oxygen functional groups in O1s spectra (i.e., M-O, M-OH, and -OH2) onto the hybrid supported the ligand-exchange behavior. Cyclic voltammetry study in arsenic electrolytes (10 µM - 1 mM) provides the occurrence of various in-situ electrochemical reactions supporting the redox activity. A significant electromagnetic wave absorption characteristics of the present hybrid is proposed with plausible airborne antimicrobial-agent abilities.
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Affiliation(s)
- Yaswanth K Penke
- Department of Mechanical Engineering, Indian Institute of Technology Kanpur, 208016, Kanpur, U.P, India.
- Advanced Nano Engineering Materials Laboratory, Department of Mechanical Engineering, and Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur, 208016, U.P, India.
| | - Prem Anand Murugan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Kanpur, 208016, Kanpur, U.P, India
| | - Saravanan Matheshwaran
- Department of Biosciences and Bioengineering, Indian Institute of Technology Kanpur, 208016, Kanpur, U.P, India.
- Centre for Environmental Science and Engineering Indian Institute of Technology Kanpur, 208016, Kanpur, U.P, India.
| | - Janakarajan Ramkumar
- Department of Mechanical Engineering, Indian Institute of Technology Kanpur, 208016, Kanpur, U.P, India
- Materials Science Programme, Indian Institute of Technology Kanpur, 208016, Kanpur, U.P, India
| | - Kamal K Kar
- Department of Mechanical Engineering, Indian Institute of Technology Kanpur, 208016, Kanpur, U.P, India.
- Advanced Nano Engineering Materials Laboratory, Department of Mechanical Engineering, and Materials Science Programme, Indian Institute of Technology Kanpur, Kanpur, 208016, U.P, India.
- Materials Science Programme, Indian Institute of Technology Kanpur, 208016, Kanpur, U.P, India.
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Shao M, Gu F, Fu L, Yue X. Synthesis and In‐Situ Aggregation Plugging Capacity of Nanoparticles as Potential Deep Profile Control Agents. ChemistrySelect 2022. [DOI: 10.1002/slct.202201486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Minglu Shao
- School of Petroleum Engineering School of Energy ChangZhou University Changzhou 21306 China
| | - Feng Gu
- School of Petroleum Engineering School of Energy ChangZhou University Changzhou 21306 China
| | - Lipei Fu
- School of Petroleum Engineering School of Energy ChangZhou University Changzhou 21306 China
| | - Xiangan Yue
- State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing) Beijing 102249 China
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Khatua A, Prasad A, Behuria HG, Patel AK, Singh M, Yasasve M, Saravanan M, Meena R. Evaluation of antimicrobial, anticancer potential and Flippase induced leakage in model membrane of Centella asiatica fabricated MgONPs. BIOMATERIALS ADVANCES 2022; 138:212855. [PMID: 35913247 DOI: 10.1016/j.bioadv.2022.212855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 04/24/2022] [Accepted: 05/09/2022] [Indexed: 12/26/2022]
Abstract
The use of chemically synthesized nanoparticles and crude plant extracts as antimicrobial -anticancer agents have many limitations. In this study, we have used Centella asiatica extract (CaE) having relatively less explored but tremendous medicinal properties, as reducing and stabilizing agents to green synthesize magnesium oxide nanoparticles (MgONPs) using magnesium nitrate. In comparison to the bulk material, capabilities of Ca-MgONPs as an improved antibacterial, antifungal, and anticancer agent in human prostatic carcinoma cells (PC3), as well as membranolytic capability in model cell membrane, were studied. The phyto-functionalized Ca-MgONPs were characterized using UV-Visible spectroscopy (UV-Vis), Transmission Electron Microscopy (TEM), Energy Dispersive X-Ray Spectroscopy (EDX), X-ray Diffraction (XRD), Fourier Transform Infra-Red Spectroscopy (FT-IR) and Atomic Force Microscopy (AFM). Observation of characteristic peaks by spectroscopic and microscopic analysis confirmed the synthesis of Ca-MgONPs. The Ca-MgONPs showed broad spectrum of bactericidal activity against both gram-positive and gram-negative bacteria and fungicidal activity against two species of the Candida fungus. The Ca-MgONPs also exhibited dose-dependent and selective inhibition of proliferating PC3 cells with IC50 of 123.65 ± 4.82 μg/mL at 24 h, however, without having any cytotoxicity toward non-cancerous HEK293 cells. Further studies aimed at understanding the probable mechanism of toxicity of Ca-MgONPs in PC3 cells, the results indicated a significant reduction in cell migration capacities, increment in cytosolic ROS, loss of mitochondrial transmembrane potential, DNA damage and S-phase cell cycle arrest. Ca-MgONPs also induced pore formation in a synthetic large unilamellar vesicle. Thus, Ca-MgONPs might be useful in the effective management of several human pathogens of concern and some more cancer types.
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Affiliation(s)
- Ashapurna Khatua
- Nanotoxicology Laboratory, Lab#312, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Abhinav Prasad
- Biochemistry and Environmental Toxicology Laboratory, Lab#103, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Himadri Gourav Behuria
- Department of Biotechnology, North Orissa University, Mayurbhanj, Baripada, Odisha 757003, India
| | - Amiya Kumar Patel
- School of Biotechnology and Bioinformatics, Sambalpur University, Sambalpur, Odisha 768019, India
| | - Mani Singh
- Department of Environmental Sciences, Lakshmibai College, University of Delhi, New Delhi 110052, India
| | - Madhavan Yasasve
- Department of Oral Medicine and Radiology, Faculty of Dental Sciences, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India
| | - Muthupandian Saravanan
- AMR and Nanomedicine Laboratory, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, India.
| | - Ramovatar Meena
- Nanotoxicology Laboratory, Lab#312, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
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Gupta K, Joshi P, Gusain R, Khatri OP. Recent advances in adsorptive removal of heavy metal and metalloid ions by metal oxide-based nanomaterials. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214100] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Yang HR, Li SS, Yang C, An QD, Zhai SR, Xiao ZY. Bi-layered hollow amphoteric composites: Rational construction and ultra-efficient sorption performance for anionic Cr(VI) and cationic Cu(II) ions. J Colloid Interface Sci 2021; 607:556-567. [PMID: 34520903 DOI: 10.1016/j.jcis.2021.08.197] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/27/2021] [Accepted: 08/29/2021] [Indexed: 12/17/2022]
Abstract
Here, we have developed a novel bilayer hollow amphiphilic biosorbent (BHAB-3) with large adsorption capacity, rapid adsorption kinetics, and cost-effective for the removal of Cr(VI) and Cu(II) from aqueous solutions. The synthesis was based on the clever use of freeze-drying to fix the structure, secondary modification of the carboxymethyl cellulose microspheres with polyethyleneimine and cross-linking by glutaraldehyde. The consequences of pH, initial concentration, contact time and temperature on adsorption were investigated. The Langmuir model fits showed that the maximum adsorption capacities of the two target heavy metal ions reached 835.91 and 294.79 mg/g, respectively. Moreover, BHAB-3 was characterized by SEM, FT-IR, TGA, and XPS synergistically, showing that it exhibits a strong complexation ability for Cu(II) and a strong electrostatic effect for Cr(VI). Adsorption and desorption experiments showed only a slight decrease in the adsorption capacity of the BHAB-3 for Cr(VI) and Cu(II) ions after 5 and 26 cycles, respectively. Given the excellent properties of this adsorbent, it is a promising candidate for heavy metal ion removal.
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Affiliation(s)
- Hua-Rong Yang
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Shan-Shan Li
- Jinxi Research Institute of Chemical Industry Company Limited, Huludao 125000, China
| | - Chen Yang
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Qing-Da An
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Shang-Ru Zhai
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
| | - Zuo-Yi Xiao
- Liaoning Key Laboratory of Lignocellulosic Chemistry and Biomaterials, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China
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13
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Muñiz Diaz R, Cardoso-Avila PE, Pérez Tavares JA, Patakfalvi R, Villa Cruz V, Pérez Ladrón de Guevara H, Gutiérrez Coronado O, Arteaga Garibay RI, Saavedra Arroyo QE, Marañón-Ruiz VF, Castañeda Contreras J. Two-Step Triethylamine-Based Synthesis of MgO Nanoparticles and Their Antibacterial Effect against Pathogenic Bacteria. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:410. [PMID: 33562669 PMCID: PMC7914904 DOI: 10.3390/nano11020410] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 01/27/2021] [Accepted: 01/29/2021] [Indexed: 12/13/2022]
Abstract
Magnesium oxide nanoparticles (MgO NPs) were obtained by the calcination of precursor microparticles (PM) synthesized by a novel triethylamine-based precipitation method. Scanning electron microscopy (SEM) revealed a mean size of 120 nm for the MgO NPs. The results of the characterizations for MgO NPs support the suggestion that our material has the capacity to attack, and have an antibacterial effect against, Gram-negative and Gram-positive bacteria strains. The ability of the MgO NPs to produce reactive oxygen species (ROS), such as superoxide anion radicals (O2•-) or hydrogen peroxide (H2O2), was demonstrated by the corresponding quantitative assays. The MgO antibacterial activity was evaluated against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria, with minimum inhibitory concentrations (MICs) of 250 and 500 ppm on the microdilution assays, respectively. Structural changes in the bacteria, such as membrane collapse; surface changes, such as vesicular formation; and changes in the longitudinal and horizontal sizes, as well as the circumference, were observed using atomic force microscopy (AFM). The lipidic peroxidation of the bacterial membranes was quantified, and finally, a bactericidal mechanism for the MgO NPs was also proposed.
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Affiliation(s)
- Ramiro Muñiz Diaz
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico; (R.M.D.); (J.A.P.T.); (V.V.C.); (H.P.L.d.G.); (O.G.C.); (V.F.M.-R.); (J.C.C.)
| | | | - José Antonio Pérez Tavares
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico; (R.M.D.); (J.A.P.T.); (V.V.C.); (H.P.L.d.G.); (O.G.C.); (V.F.M.-R.); (J.C.C.)
| | - Rita Patakfalvi
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico; (R.M.D.); (J.A.P.T.); (V.V.C.); (H.P.L.d.G.); (O.G.C.); (V.F.M.-R.); (J.C.C.)
| | - Virginia Villa Cruz
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico; (R.M.D.); (J.A.P.T.); (V.V.C.); (H.P.L.d.G.); (O.G.C.); (V.F.M.-R.); (J.C.C.)
| | - Héctor Pérez Ladrón de Guevara
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico; (R.M.D.); (J.A.P.T.); (V.V.C.); (H.P.L.d.G.); (O.G.C.); (V.F.M.-R.); (J.C.C.)
| | - Oscar Gutiérrez Coronado
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico; (R.M.D.); (J.A.P.T.); (V.V.C.); (H.P.L.d.G.); (O.G.C.); (V.F.M.-R.); (J.C.C.)
| | - Ramón Ignacio Arteaga Garibay
- Centro Nacional de Recursos Genéticos, Instituto Nacional de Investigación Forestal, Agrícola y Pecuaria, Tepatitlán de Morelos 47600, Mexico;
| | | | - Virginia Francisca Marañón-Ruiz
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico; (R.M.D.); (J.A.P.T.); (V.V.C.); (H.P.L.d.G.); (O.G.C.); (V.F.M.-R.); (J.C.C.)
| | - Jesús Castañeda Contreras
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Mexico; (R.M.D.); (J.A.P.T.); (V.V.C.); (H.P.L.d.G.); (O.G.C.); (V.F.M.-R.); (J.C.C.)
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Ruan S, Yang EH, Unluer C. Production of reactive magnesia from desalination reject brine and its use as a binder. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2020.101383] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Channegowda M. Recent advances in environmentally benign hierarchical inorganic nano-adsorbents for the removal of poisonous metal ions in water: a review with mechanistic insight into toxicity and adsorption. NANOSCALE ADVANCES 2020; 2:5529-5554. [PMID: 36133867 PMCID: PMC9418829 DOI: 10.1039/d0na00650e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 09/19/2020] [Indexed: 05/05/2023]
Abstract
Recent developments in nanoscience and technology have addressed many of the problems associated with water quality. Accordingly, using the technological outputs of the recent research on nanomaterials, the best solution for the purification of water is highlighted in this review. Herein, the main objective is to provide mechanistic insight into the synthesis of various inorganic nanoadsorbents and their adsorption chemistry for poisonous metal ions present in polluted water. Initially, the toxicity and carcinogenicity of As3+, Pb2+, Cr6+, Cd2+, and Hg2+ metal ions are highlighted. For the removal of these toxic ions, this review focuses on eco-friendly nanoadsorbents. The various preparation procedures utilized for the preparation of nanoadsorbents are briefly discussed. Generally, this is because of the adsorption capacity of nanoadsorbents depends on their morphology, shape, size, surface area, surface active sites, functional groups, and quantization effect. Also, due to the importance of their mechanism of action, the recent developments and challenges of novel nanoadsorbents such as metal oxides, core shell nanoparticles, magnetic nano ferrates, and functionalized core shell magnetic oxides and the processes for the treatment of water contaminated by toxic metal ions such as As3+, Pb2+, Cr6+, Cd2+, and Hg2+ are exclusively reviewed. Further, the adsorption efficiency of inorganic nanoadsorbents is also compared with that of activated carbon derived from various sources for all the above-mentioned metal ions.
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Affiliation(s)
- Manjunatha Channegowda
- Department of Chemistry, RV College of Engineering Bengaluru-560 059 Karnataka India +91 9036651277
- Visvesvaraya Technological University Belagavi-590018 India
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16
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Jin S, Bang G, Lee CH. Unusual morphology transformation and basicity of magnesium oxide controlled by ageing conditions and its carbon dioxide adsorption. J CO2 UTIL 2020. [DOI: 10.1016/j.jcou.2020.101273] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Xia H, Zhou M, Wei X, Zhang X, Wu Z. Slow and Sustained Release of Carbonate Ions from Amino Acids for Controlled Hydrothermal Growth of Alkaline-Earth Carbonate Single Crystals. ACS OMEGA 2020; 5:14123-14132. [PMID: 32566880 PMCID: PMC7301596 DOI: 10.1021/acsomega.0c01719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/21/2020] [Indexed: 05/16/2023]
Abstract
Alkaline-earth metal carbonate materials have attracted wide interest because of their high value in many applications. Various sources of carbonate ions (CO3 2-), such as CO2 gas, alkaline-metal carbonate salts, and urea, have been reported for the synthesis of metal carbonate crystals, yet a slow and sustained CO3 2- release approach for controlled crystal growth is much desired. In this paper, we demonstrate a new chemical approach toward slow and sustained CO3 2- release for hydrothermal growth of large alkaline-earth metal carbonate single crystals. Such an approach is enabled by the multiple hydrolysis of a small basic amino acid (arginine, Arg). Namely, the amino groups of Arg hydrolyze to form OH- ions, making the solution basic, and the hydrolysis of the guanidyl group of Arg is hydrothermally triggered to produce urea and ammonia, followed by the hydrolysis of urea to produce CO2 and ammonia and then the release of CO3 2- because of the reaction between CO2 and the OH- ions hydrolyzed from ammonia. Such a CO3 2- release behavior enables the slow and controlled growth of various carbonate single crystals over a wide range of pH values. The growth of uniform rhombohedron MgCO3 single crystals with variable morphologies and crystal sizes is studied in detail. The influences of reaction temperature, solution pH, precursor type, and concentration on the morphology and size of the resulting MgCO3 crystals are elucidated. The crystal evolution mechanism is also proposed and discussed with various supportive data.
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Xu H, Bai Z, Zhang M, Wang J, Yan Y, Qiu M, Chen J. Water-locking molecule-assisted fabrication of nature-inspired Mg(OH) 2 for highly efficient and economical uranium capture. Dalton Trans 2020; 49:7535-7545. [PMID: 32458903 DOI: 10.1039/d0dt00618a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
With the depletion of uranium terrestrial deposits, researchers have focused on the development of adsorbents to extract radioactive uranium from seawater/wastewater. However, the artificial manipulation of adsorbents for the cost-effective extraction of radioactive uranium from large numbers of water samples is still significantly challenging. Herein, a facile yet versatile stepwise strategy has been reported for the fabrication of adsorbents. Magnesium hydroxide (Mg(OH)2) was fabricated via the in situ conversion of a natural ore powder (magnesite), whose unique internal pore structure is highly suitable for the development of highly efficient sorbents. The coordination interaction of the synthesized adsorbent with uranium was enhanced by further introducing inexpensive molecules with water-locking properties, which resulted in superior extraction capacity and low production cost. After careful calculation, the cost per kilogram of the adsorbent was found to be about $0.21. The adsorption behaviors of the synthesized adsorbent CMC-PAM/Mg(OH)2 were investigated by batch adsorption, flow-through column adsorption (in laboratory), and field adsorption experiments in natural seawater and river. Representatively, CMC-PAM/Mg(OH)2 was exceptional in extracting uranium not only at high concentrations with sufficient capacities in a wide pH range (1584.67 mg g-1 and 454.55 mg g-1 at pH = 5 and pH = 8, respectively), but also in trace quantities including uranium in a flow-through column (55.68 mg g-1), natural seawater (8.6 mg g-1), and river (6.7 mg g-1). Inspired by this excellent performance, the effects of competitive ions on the selective adsorption of uranium by CMC-PAM/Mg(OH)2 in simulated wastewater and seawater environments were further studied. Using a combination of FTIR spectroscopic and XPS studies, it was revealed that the amine and hydroxyl groups enhanced the overall uranyl affinity of the CMC-PAM/Mg(OH)2 composite.
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Affiliation(s)
- Hengbin Xu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Zhenyuan Bai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Milin Zhang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China. and College of Science, Heihe University, Heihe 164300, China
| | - Jun Wang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Yongde Yan
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China.
| | - Min Qiu
- College of Science, Heihe University, Heihe 164300, China
| | - Jiaming Chen
- College of Science, Heihe University, Heihe 164300, China
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Sikdar S, Ghosh A, Saha R. Synthesis of MgO micro-rods coated with charred dextrose and its application for the adsorption of selected heavy metals from synthetic and real groundwater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:17738-17753. [PMID: 32157541 DOI: 10.1007/s11356-020-08106-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 02/14/2020] [Indexed: 06/10/2023]
Abstract
MgO micro-rods supported on porous carbon were synthesized by an economical method and applied for the adsorption of three different heavy metals ions (As (III), Cd (II) and Pb (II)). Here, we used dextrose as the source of carbon during the synthesis. The synthesized material has been characterized by different techniques like XRD, TEM, FE-SEM, BET and FT-IR for the determination of various physical properties. Compared with MgO synthesized without dextrose, the carbon-supported MgO or C-MgO demonstrated consistent rod-shaped morphology, higher surface area and better absorptivity. The adsorption data were analysed using various isotherm models and the Freundlich isotherm model seemed to provide the best fit to the data. The adsorption kinetics data on the other hand was well explicated by the pseudo second-order kinetic model. The maximum adsorption capacity of C-MgO was 508.47 mg g-1 for As (III), 566.01 mg g-1 for Cd (II) and 476.19 mg g-1 for Pb (II), respectively after 6 h of reaction. To check the real-life usability and efficiency of C-MgO, it was added to a groundwater sample which had 169.55 ppb of As (III) and within 20 min it was adsorbed with 99% efficiency. Reusability studies reveal that C-MgO could be used up to 6 times with more than 60% efficiency. This study shows that C-MgO has high adsorptive ability, is an economic and non-toxic material with versatile applications and can be used for groundwater remediation in real life.
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Affiliation(s)
- Sayanta Sikdar
- Department of Chemistry, National Institute of Technology Durgapur, 713209, Durgapur, WB, India
- Department of Earth and Environmental Studies, National Institute of Technology Durgapur, Durgapur, WB, 713209, India
| | - Ananya Ghosh
- Department of Chemistry, National Institute of Technology Durgapur, 713209, Durgapur, WB, India
| | - Rajnarayan Saha
- Department of Chemistry, National Institute of Technology Durgapur, 713209, Durgapur, WB, India.
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20
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Chen J, Wu L, Lu M, Lu S, Li Z, Ding W. Comparative Study on the Fungicidal Activity of Metallic MgO Nanoparticles and Macroscale MgO Against Soilborne Fungal Phytopathogens. Front Microbiol 2020; 11:365. [PMID: 32226420 PMCID: PMC7080993 DOI: 10.3389/fmicb.2020.00365] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 02/18/2020] [Indexed: 11/13/2022] Open
Abstract
Engineered nanoparticles have provided a basis for innovative agricultural applications, specifically in plant disease management. In this interdisciplinary study, by conducting comparison studies using macroscale magnesium oxide (mMgO), we evaluated the fungicidal activity of MgO nanoparticles (nMgO) against soilborne Phytophthora nicotianae and Thielaviopsis basicola for the first time under laboratory and greenhouse conditions. In vitro studies revealed that nMgO could inhibit fungal growth and spore germination and impede sporangium development more efficiently than could macroscale equivalents. Indispensably, direct contact interactions between nanoparticles and fungal cells or nanoparticle adsorption thereof were found, subsequently provoking cell morphological changes by scanning electron microscopy/energy-dispersive spectrometry (SEM/EDS) and transmission electron microscopy (TEM). In addition, the disturbance of the zeta potential and accumulation of various modes of oxidative stress in nMgO-exposed fungal cells accounted for the underlying antifungal mechanism. In the greenhouse, approximately 36.58 and 42.35% decreases in tobacco black shank and black root rot disease, respectively, could testify to the efficiency by which 500 μg/ml of nMgO suppressed fungal invasion through root irrigation (the final control efficiency reached 50.20 and 62.10%, respectively) when compared with that of untreated controls or mMgO. This study will extend our understanding of nanoparticles potentially being adopted as an effective strategy for preventing diversified fungal infections in agricultural fields.
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Affiliation(s)
- Juanni Chen
- Laboratory of Natural Products Pesticide, College of Plant Protection, Southwest University, Chongqing, China
| | - Lintong Wu
- Laboratory of Natural Products Pesticide, College of Plant Protection, Southwest University, Chongqing, China
| | - Mei Lu
- Laboratory of Natural Products Pesticide, College of Plant Protection, Southwest University, Chongqing, China
| | - Shasha Lu
- Laboratory of Natural Products Pesticide, College of Plant Protection, Southwest University, Chongqing, China
| | - Ziyan Li
- Laboratory of Natural Products Pesticide, College of Plant Protection, Southwest University, Chongqing, China
| | - Wei Ding
- Laboratory of Natural Products Pesticide, College of Plant Protection, Southwest University, Chongqing, China
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21
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Zhu P, Tian P, Gao T, Pang H, Ye J, Ning G. Synthesis of flower-like porous MgO microspheres via a gas-liquid interfacial reaction. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.137080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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22
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Nagpal M, Kakkar R. Adsorptive Degradation of Phosmet Using Hierarchically Porous Calcium Oxide : An Experimental and Theoretical Study. ChemistrySelect 2020. [DOI: 10.1002/slct.201904740] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mudita Nagpal
- Department of ChemistryUniversity of Delhi Delhi- 110 007 India
| | - Rita Kakkar
- Department of ChemistryUniversity of Delhi Delhi- 110 007 India
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Ngambia A, Ifthikar J, Shahib II, Jawad A, Shahzad A, Zhao M, Wang J, Chen Z, Chen Z. Adsorptive purification of heavy metal contaminated wastewater with sewage sludge derived carbon-supported Mg(II) composite. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 691:306-321. [PMID: 31323576 DOI: 10.1016/j.scitotenv.2019.07.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/01/2019] [Accepted: 07/01/2019] [Indexed: 06/10/2023]
Abstract
A rod-like SDBC-Mg(II) composite was synthesized and optimized in the conditions of 25% Mg(II) loading and 500 °C calcination temperature. As-prepared SDBC-25%Mg(II)-500 adsorbent attained equilibrium in 30 min, with an extraordinary capacity of 2931.76 mg g-1 (Pb(II)) and 861.11 mg g-1 (Cd(II)), revealing a promising adsorbent for the removal of such metals so far. The adsorption kinetics was well described by the pseudo-second-order model while the adsorption isotherm could be fitted by Redlich-Peterson model. Furthermore, SDBC-25%Mg(II)-500 has a high anti-interference and selectivity in the presence of competing ions/other environmental factors and, also effectively eliminates >99% of Pb2+, Cd2+, Ag+ and Cu2+ ions from pond water, lake water and tap water. The adsorption process demonstrated a synergetic adsorption mechanism comprised of ion exchange with Mg(II), coordination with surface and inner carboxylic or carbonyl functional groups and co-precipitations as metal silicates, which is responsible for its superb adsorption performance. Besides, surface carvings of Mg(II) and tunnels on the rods resulting from the sludge carbonization provided a high surface area (91.57 m2 g-1), extra sorption sites and room for easy pollutant diffusion which contributed to surface physical adsorption. Furthermore, this technique demonstrate an alternative pathway that will relieve the burdens of sewage sludge treatment process and turn this solid waste into highly efficient adsorbent for eliminating heavy metal ions from wastewater. This can be considered as a feasible waste resource utilization to meet with the requirement from both ecology and economy for auspicious applications in industries.
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Affiliation(s)
- Audrey Ngambia
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Jerosha Ifthikar
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Irshad Ibran Shahib
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Ali Jawad
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Ajmal Shahzad
- Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Mengmeng Zhao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Jia Wang
- Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zhulei Chen
- Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zhuqi Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
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Preparation of 2,5-diamino-1,3,4-thiadiazole derivatives using MgO nanoparticles as heterogeneous basic catalysts. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02431-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Ghosh A, Biswas S, Sikdar S, Saha R. Morphology Controlled Fabrication of Highly Permeable Carbon Coated Rod-Shaped Magnesium Oxide as a Sustainable Arsenite Adsorbent. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00709] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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26
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Hlongwane GN, Sekoai PT, Meyyappan M, Moothi K. Simultaneous removal of pollutants from water using nanoparticles: A shift from single pollutant control to multiple pollutant control. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 656:808-833. [PMID: 30530150 DOI: 10.1016/j.scitotenv.2018.11.257] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/18/2018] [Accepted: 11/17/2018] [Indexed: 04/14/2023]
Abstract
The steady increase in population, coupled with the rapid utilization of resources and continuous development of industry and agriculture has led to excess amounts of wastewater with changes in its composition, texture, complexity and toxicity due to the diverse range of pollutants being present in wastewater. The challenges faced by wastewater treatment today are mainly with the complexity of the wastewater as it complicates treatment processes by requiring a combination of technologies, thus resulting in longer treatment times and higher operational costs. Nanotechnology opens up a novel platform that is free from secondary pollution, inexpensive and an effective way to simultaneously remove multiple pollutants from wastewater. Currently, there are a number of studies that have presented a myriad of multi-purpose/multifunctional nanoparticles that simultaneously remove multiple pollutants in water. However, these studies have not been collated to review the direction that nanoparticle assisted wastewater treatment is heading towards. Hence, this critical review explores the feasibility and efficiency of simultaneous removal of co-existing/multiple pollutants in water using nanomaterials. The discussion begins with an introduction of different classes of pollutants and their toxicity followed by an overview and highlights of current research on multipollutant control in water using different nanomaterials as adsorbents, photocatalysts, disinfectants and microbicides. The analysis is concluded with a look at the current attempts being made towards commercialization of multipollutant control/multifunctional nanotechnology inventions. The review presents evidence of simultaneous removal of pathogenic microorganisms, inorganic and organic compound chemical pollutants using nanoparticles. Accordingly, not only is nanotechnology showcased as a promising and an environmentally-friendly way to solve the limitations of current and conventional centralised water and wastewater treatment facilities but is also presented as a good substitute or supplement in areas without those facilities.
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Affiliation(s)
- Gloria Ntombenhle Hlongwane
- Department of Chemical Engineering, Faculty of Engineering and the Built Environment, University of Johannesburg, Doornfontein, 2028, Johannesburg, South Africa
| | - Patrick Thabang Sekoai
- Hydrogen Infrastructure Centre of Competence, Faculty of Engineering, North-West University, Potchefstroom 2520, South Africa
| | - Meyya Meyyappan
- Center for Nanotechnology, NASA Ames Research Center, Moffett Field, California 94035, United States
| | - Kapil Moothi
- Department of Chemical Engineering, Faculty of Engineering and the Built Environment, University of Johannesburg, Doornfontein, 2028, Johannesburg, South Africa.
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27
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Nagpal M, Kakkar R. Use of metal oxides for the adsorptive removal of toxic organic pollutants. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.10.016] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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28
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Lingamdinne LP, Koduru JR, Karri RR. A comprehensive review of applications of magnetic graphene oxide based nanocomposites for sustainable water purification. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 231:622-634. [PMID: 30390447 DOI: 10.1016/j.jenvman.2018.10.063] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/08/2018] [Accepted: 10/17/2018] [Indexed: 05/12/2023]
Abstract
With the rapid growth of industrialization, water bodies are polluted with heavy metals and toxic pollutants. In pursuit of removal of toxic pollutants from the aqueous environment, researchers have been developed many techniques. Among these techniques, magnetic separation has caught research attention, as this approach has shown excellent performance in the removal of toxic pollutants from aqueous solutions. However, magnetic graphene oxide based nanocomposites (MGO) possess unique physicochemical properties including excellent magnetic characteristics, high specific surface area, surface active sites, high chemical stability, tunable shape and size, and the ease with which they can be modified or functionalized. As results of their multi-functional properties, affordability, and magnetic separation capability, MGO's have been widely used in the removal of heavy metals, radionuclides and organic dyes from the aqueous environment, and are currently attracting much attention. This paper provides insights into preparation strategies and approaches of MGO's utilization for the removal of pollutants for sustainable water purification. It also reviews the preparation of magnetic graphene oxide nanocomposites and primary characterization instruments required for the evaluation of structural, chemical and physical functionalities of synthesized magnetic graphene oxide nanocomposites. Finally, we summarized some research challenges to accelerate the synthesized MGO's as adsorbents for the treatment of water pollutants such as toxic and radioactive metal ions and organic and agricultural pollutants.
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Affiliation(s)
| | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea.
| | - Rama Rao Karri
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Brunei Darussalam.
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29
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Koju NK, Song X, Lin N, Xu K, Fu H. Enhanced distribution of humic acid-modified nanoscale magnesia for in situ reactive zone removal of Cd from simulated groundwater. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 245:9-19. [PMID: 30408764 DOI: 10.1016/j.envpol.2018.10.105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 10/21/2018] [Accepted: 10/24/2018] [Indexed: 06/08/2023]
Abstract
Efficient injection and distribution of nanoparticles in porous media are considered a formidable technical hurdle for injection-based in situ remediation. One approach to enhance the mobility of nanoparticles in an aquifer is to use surface modifiers. In this study, nanoscale magnesia (NMgOs), an innovative and effective remedial material for cadmium (Cd) removal from groundwater, was modified with the negatively charged and eco-friendly humic acid to enhance its mobility in aquifers. A two-dimensional reactor (60 × 50 × 10 cm), with 2 injection wells and 30 monitoring wells was designed, constructed, and sand-packed in the laboratory to simulate a saturated aquifer. The simulated aquifer was pre-contaminated with Cd to simulate a plume in groundwater. The distribution of injected unmodified NMgOs and humic acid-modified NMgOs slurry were evaluated in the reactor. The radius of influence (ROI) of humic acid-modified NMgOs was estimated to be approximately 5 cm based on visual observation, while no ROI was apparent for the unmodified NMgOs because of their aggregation at the bottom of the injection wells. The concentrations of Cd and magnesium (Mg) were monitored in all 30 monitoring wells at different time intervals to evaluate the effectiveness of Cd removal. The breakthrough curve analysis revealed that humic acid enhances the transport of NMgOs in the saturated porous media. Furthermore, the results of scanning electron microscopy-energy dispersive x-ray (SEM-EDX) characterization of silica sand before and after injection of NMgOs verified the presence of 5.78% of Mg from humic acid-modified NMgOs and 0.19% from unmodified NMgOs at 35 cm downgradient of the injection wells, which are consistent with the conclusion drawn from the breakthrough curves.
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Affiliation(s)
- Neel Kamal Koju
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 21008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xin Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 21008, China.
| | - Na Lin
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 21008, China
| | - Keke Xu
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 21008, China
| | - Heng Fu
- Nanjing Kangdi Environmental Protection Technology Co., LTD, Nanjing, 21008, China
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Ahmed S, Ashiq MN, Li D, Tang P, Leroux F, Feng Y. Recent Progress on Adsorption Materials for Phosphate Removal. RECENT PATENTS ON NANOTECHNOLOGY 2019; 13:3-16. [PMID: 30848222 DOI: 10.2174/1872210513666190306155245] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 02/07/2019] [Accepted: 02/14/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND High concentration of phosphate has been threatening human health and the ecosystem. Adsorption is one of high-efficiency and low-cost techniques to reduce the concentration of phosphate. This mini review aims to summarize the recent development of adsorption materials for phosphate removal. METHOD We conducted a detailed search of "adsorption of phosphate" in the published papers and the public patents on the adsorbents for phosphate based on Web of Science database in the period from January 1 2012 to December 31 2017. The corresponding literature was carefully evaluated and analyzed. RESULTS One hundred and forty one papers and twenty two recent patents were included in this review. An increased trend in scientific contributions was observed in the development of adsorption materials for phosphate removal. Three kinds of promising adsorbents: layered double hydroxides, natural materials, and metal oxides were paid special attention including removal mechanism, performance as well as the relationship between adsorption performance and structure. Both the chemical composition and the morphology play a key role in the removal capacity and rate. CONCLUSION The findings of this review confirm the importance of phosphate removal, show the development trend of high-performance and low-cost adsorption materials for phosphate removal, and provide a helpful guide to design and fabricate high-efficiency adsorbents.
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Affiliation(s)
- Saeed Ahmed
- State Key Laboratory of Chemical Resource Engineering, Beijing Engineering Centre for Hierarchical Catalysts, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China
| | - Muhammad Naeem Ashiq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Dianqing Li
- State Key Laboratory of Chemical Resource Engineering, Beijing Engineering Centre for Hierarchical Catalysts, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China
| | - Pinggui Tang
- State Key Laboratory of Chemical Resource Engineering, Beijing Engineering Centre for Hierarchical Catalysts, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China
| | - Fabrice Leroux
- Universite Clermont Auvergne, Institute de Chimie de Clermont-Ferrand ICCF, UMR-CNRS 6296, F 63171 Aubiere, France
| | - Yongjun Feng
- State Key Laboratory of Chemical Resource Engineering, Beijing Engineering Centre for Hierarchical Catalysts, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Chaoyang District, Beijing, 100029, China
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Bhattacharya P, Swain S, Giri L, Neogi S. Fabrication of magnesium oxide nanoparticles by solvent alteration and their bactericidal applications. J Mater Chem B 2019. [DOI: 10.1039/c9tb00782b] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
MgO nanoparticles are synthesized using water, ethanol and aqueous CTAB solution. The nanoparticles synthesized in ethanol exhibited smallest size, maximum reactive oxygen species generation and maximum antibacterial ability, and low haemolysis.
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Ahmed S, Iqbal A. Synthesis of 2D Magnesium Oxide Nanosheets: A Potential Material for Phosphate Removal. GLOBAL CHALLENGES (HOBOKEN, NJ) 2018; 2:1800056. [PMID: 31565317 PMCID: PMC6607237 DOI: 10.1002/gch2.201800056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Indexed: 06/09/2023]
Abstract
Phosphate ions are responsible for eutrophication in drinking and wastewater, so it is necessary to limit the phosphate concentration in water bodies to limit the eutrophication problem. Porous magnesium oxide (MgO) nanosheets are synthesized at room temperature by simple precipitation and calcination. The synthesized material is characterized by various techniques. The sheet-like MgO and commercial MgO are evaluated by the batch adsorption test. The synthesized material has an efficient adsorption efficiency of 95% at pH 5 as compared with commercial MgO, having a removal efficiency of 24% under the same investigated conditions. The synthesized MgO can be an efficient adsorbent material to overcome the eutrophication problem of the waste/domestic water.
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Affiliation(s)
- Saeed Ahmed
- State Key Laboratory of Chemical Resource EngineeringBeijing Engineering Center for Hierarchical CatalystsBeijing University of Chemical TechnologyNo. 15 Beisanhuan East Road, Chaoyang districtBeijing100029China
| | - Arshad Iqbal
- State Key Laboratory of Chemical Resource EngineeringBeijing Engineering Center for Hierarchical CatalystsBeijing University of Chemical TechnologyNo. 15 Beisanhuan East Road, Chaoyang districtBeijing100029China
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Podder S, Chanda D, Mukhopadhyay AK, De A, Das B, Samanta A, Hardy JG, Ghosh CK. Effect of Morphology and Concentration on Crossover between Antioxidant and Pro-oxidant Activity of MgO Nanostructures. Inorg Chem 2018; 57:12727-12739. [PMID: 30281293 DOI: 10.1021/acs.inorgchem.8b01938] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The toxicity of nanomaterials can sometimes be attributed to photogenerated reactive oxygen species (ROS), but these ROS can also be scavenged by nanomaterials, yielding opportunities for crossover between the properties. The morphology of nanomaterials also influences such features due to defect-induced properties. Here we report morphology-induced crossover between pro-oxidant activity (ROS generation) and antioxidant activity (ROS scavenging) of MgO. To study this process in detail, we prepared three different nanostructures of MgO (nanoparticles, nanoplates, and nanorods) and characterized them by HRTEM. These three nanostructures effectively generate superoxide anions (O2•-) and hydroxyl radicals (•OH) at higher concentrations (>500 μg/mL) but scavenge O2•- at lower concentrations (40 μg/mL) with successful crossover at 200 μg/mL. Nanorods of MgO generate the highest levels of O2•-, whereas nanoparticles scavenge O2•- to the highest extent (60%). Photoluminescence studies reveal that such crossover is based on the suppression of F2+ and the evolution of F+, F2+, and F23+ defect centers. The evolution of these defect centers reflects the antibacterial activity of MgO nanostructures which is initiated at 200 μg/mL against Gram-positive S. aureus ATCC 29737 and among different bacterial strains including Gram-positive B. subtilis ATCC 6633 and M. luteus ATCC 10240 and Gram-negative E. coli ATCC K88 and K. pneumoniae ATCC 10031. Nanoparticles exhibited the highest antibacterial (92%) and antibiofilm activity (17%) against B. subtilis ATCC 6633 in the dark. Interestingly, the nitrogen-centered free radical DPPH is scavenged (100%) by nanoplates due to its large surface area (342.2 m2/g) and the presence of the F2+ defect state. The concentration-dependent interaction with an antioxidant defense system (ascorbic acid (AA)) highlights nanoparticles as potent scavengers of O2•- in the dark. Thus, our findings establish guidelines for the selection of MgO nanostructures for diverse therapeutic applications.
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Affiliation(s)
- Soumik Podder
- School of Materials Science and Nanotechnology , Jadavpur University , Kolkata 700032 , India
| | - Dipak Chanda
- School of Materials Science and Nanotechnology , Jadavpur University , Kolkata 700032 , India.,Advanced Mechanical and Materials Characterization Division , CSIR-Central Glass and Ceramic Research Institute , Kolkata 700032 , India
| | - Anoop Kumar Mukhopadhyay
- Advanced Mechanical and Materials Characterization Division , CSIR-Central Glass and Ceramic Research Institute , Kolkata 700032 , India
| | - Arnab De
- Department of Pharmaceutical Technology , Jadavpur University , Kolkata 700032 , India
| | - Bhaskar Das
- Department of Pharmaceutical Technology , Jadavpur University , Kolkata 700032 , India
| | - Amalesh Samanta
- Department of Pharmaceutical Technology , Jadavpur University , Kolkata 700032 , India
| | - John George Hardy
- Department of Chemistry , Lancaster University , Lancaster , Lancashire LA1 4YB , U.K.,Materials Science Institute , Lancaster University , Lancaster , Lancashire LA1 4YB , U.K
| | - Chandan Kumar Ghosh
- School of Materials Science and Nanotechnology , Jadavpur University , Kolkata 700032 , India
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Modwi A, Khezami L, Taha KK, Idriss H. Flower Buds Like MgO Nanoparticles: From Characterisation to Indigo Carmine Elimination. ACTA ACUST UNITED AC 2018. [DOI: 10.1515/zna-2018-0219] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Abstract
Here, we demonstrate a pyrolysis route for the synthesis of flower buds like magnesium oxide nanoparticles using a magnesium carbonate precursor without additional chemicals. The effect of heating at different time intervals upon the structure and morphology of the acquired nanostructures were investigated via X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis and Fourier transformation infrared spectroscopy. Nitrogen adsorption was employed to study its porosity. The obtained data confirmed the formation of target nanoparticles that exhibited increasing sizes as pyrolysis time was lengthened. As a consequence a high surface area up to 27 m2 g−1 was recorded for the sample heated for 1 h duration. Furthermore, Indigo Carmine dye adsorption was carried out using the largest surface area species which showed an adsorption capacity of 158 mg g−1. The adsorption was found to comply with the Langmuir isotherm and it follows the pseudo-second-order kinetics. The diffusion process showed intra-particle along with film diffusion mode.
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Affiliation(s)
- A. Modwi
- Department of Chemistry, College of Sciences , Al Imam Mohammad Ibn Saud Islamic University (IMSIU) , Riyadh 11432 , Saudi Arabia
| | - L. Khezami
- Department of Chemistry, College of Sciences , Al Imam Mohammad Ibn Saud Islamic University (IMSIU) , Riyadh 11432 , Saudi Arabia
| | - Kamal K. Taha
- Department of Chemistry, College of Sciences , Al Imam Mohammad Ibn Saud Islamic University (IMSIU) , Riyadh 11432 , Saudi Arabia
- College of Applied and Industrial Sciences, University of Bahri , Khartoum , Sudan
| | - Hajo Idriss
- Department of Physics, Committee on Radiation and Environmental Pollution Protection, College of Science , Al Imam Mohammad Ibn Saud Islamic University (IMSIU) , PO Box 90950 , Riyadh, 11623 , Saudi Arabia
- Radiation Safety Institute, Sudan Atomic Energy Commission , PO Box 3001 Khartoum , Sudan
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Hornak J, Trnka P, Kadlec P, Michal O, Mentlík V, Šutta P, Csányi GM, Tamus ZÁ. Magnesium Oxide Nanoparticles: Dielectric Properties, Surface Functionalization and Improvement of Epoxy-Based Composites Insulating Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E381. [PMID: 29848967 PMCID: PMC6027305 DOI: 10.3390/nano8060381] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 05/18/2018] [Accepted: 05/23/2018] [Indexed: 11/17/2022]
Abstract
Composite insulation materials are an inseparable part of numerous electrical devices because of synergy effect between their individual parts. One of the main aims of the presented study is an introduction of the dielectric properties of nanoscale magnesium oxide powder via Broadband Dielectric Spectroscopy (BDS). These unique results present the behavior of relative permittivity and loss factor in frequency and temperature range. Following the current trends in the application of inorganic nanofillers, this article is complemented by the study of dielectric properties (dielectric strength, volume resistivity, dissipation factor and relative permittivity) of epoxy-based composites depending on the filler amount (0, 0.5, 0.75, 1 and 1.25 weight percent). These parameters are the most important for the design and development of the insulation systems. The X-ray diffraction patterns are presented for pure resin and resin with optimal filler amount (1 wt %), which was estimated according to measurement results. Magnesium oxide nanoparticles were also treated by addition of silane coupling agent ( γ -Glycidoxypropyltrimethoxysilane), in the case of optimal filler loading (1 wt %) as well. Besides previously mentioned parameters, the effects of surface functionalization have been observed by two unique measurement and evaluation techniques which have never been used for this evaluation, i.e., reduced resorption curves (RRCs) and voltage response method (VR). These methods (developed in our departments), extend the possibilities of measurement of composite dielectric responses related to DC voltage application, allow the facile comparability of different materials and could be used for dispersion level evaluation. This fact has been confirmed by X-ray diffraction analyses.
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Affiliation(s)
- Jaroslav Hornak
- Department of Technologies and Measurement, Faculty of Electrical Engineering, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic.
| | - Pavel Trnka
- Department of Technologies and Measurement, Faculty of Electrical Engineering, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic.
| | - Petr Kadlec
- Department of Technologies and Measurement, Faculty of Electrical Engineering, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic.
| | - Ondřej Michal
- Department of Technologies and Measurement, Faculty of Electrical Engineering, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic.
| | - Václav Mentlík
- Department of Technologies and Measurement, Faculty of Electrical Engineering, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic.
| | - Pavol Šutta
- New Technologies-Research Centre, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic.
| | - Gergely Márk Csányi
- Department of Electric Power Engineering, Faculty of Electrical Engineering and Informatics, Budapest University of Technology of Economics, Egry J. Street 18., H-1111 Budapest, Hungary.
| | - Zoltán Ádám Tamus
- Department of Electric Power Engineering, Faculty of Electrical Engineering and Informatics, Budapest University of Technology of Economics, Egry J. Street 18., H-1111 Budapest, Hungary.
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Wang Y, She H, Ma Q, Lian J, Zhong J, Li J, Tong J, He Y, Wang R, Wang Q. Plant-Protein-Modified TiO 2
(SPI@TiO 2
) for Photodegradation of Dyes. ChemistrySelect 2018. [DOI: 10.1002/slct.201800186] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yan Wang
- College of Chemistry and Chemical Engineering; Key Laboratory of Eco-Environment-Related Polymer Materials; Northwest Normal University; 967 Anning East Rd. Lanzhou 200240 China
| | - Houde She
- College of Chemistry and Chemical Engineering; Key Laboratory of Eco-Environment-Related Polymer Materials; Northwest Normal University; 967 Anning East Rd. Lanzhou 200240 China
| | - Qiong Ma
- College of Chemistry and Chemical Engineering; Key Laboratory of Eco-Environment-Related Polymer Materials; Northwest Normal University; 967 Anning East Rd. Lanzhou 200240 China
| | - Juhong Lian
- College of Chemistry and Chemical Engineering; Key Laboratory of Eco-Environment-Related Polymer Materials; Northwest Normal University; 967 Anning East Rd. Lanzhou 200240 China
| | - Junbo Zhong
- College of Chemistry and Pharmaceutical Engineering; Sichuan University of Science and Engineering; Zigong 643000 China
| | - Jianzhang Li
- College of Chemistry and Pharmaceutical Engineering; Sichuan University of Science and Engineering; Zigong 643000 China
| | - Jinhui Tong
- College of Chemistry and Chemical Engineering; Key Laboratory of Eco-Environment-Related Polymer Materials; Northwest Normal University; 967 Anning East Rd. Lanzhou 200240 China
| | - Yufeng He
- College of Chemistry and Chemical Engineering; Key Laboratory of Eco-Environment-Related Polymer Materials; Northwest Normal University; 967 Anning East Rd. Lanzhou 200240 China
| | - Rongmin Wang
- College of Chemistry and Chemical Engineering; Key Laboratory of Eco-Environment-Related Polymer Materials; Northwest Normal University; 967 Anning East Rd. Lanzhou 200240 China
| | - Qizhao Wang
- College of Chemistry and Chemical Engineering; Key Laboratory of Eco-Environment-Related Polymer Materials; Northwest Normal University; 967 Anning East Rd. Lanzhou 200240 China
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37
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Wang Y, Chen Y, Liu C, Yu F. High-efficiency enrichment of uranium(VI) from aqueous solution by hydromagnesite and its calcination products. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-017-5661-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Gardi I, Mishael YG. Designing a regenerable stimuli-responsive grafted polymer-clay sorbent for filtration of water pollutants. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2018; 19:588-598. [PMID: 30151061 PMCID: PMC6104616 DOI: 10.1080/14686996.2018.1499381] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 05/22/2023]
Abstract
A novel, stimuli-responsive composite, based on poly(4-vinylpyridine) (PVP) brushes, end-grafted to montmorillonite clay (GPC), was designed as a regenerable sorbent for efficient removal of pollutants from water. We characterized the novel composite sorbent and its response to pH, employing Fourier transform infrared, X-ray photoelectron spectroscopy, X-ray diffraction, thermogravimetry analysis and zeta potential measurements. In comparison with conventional, electrostatically adsorbed PVP composites (APC), the GPC presented superior characteristics: higher polymer loading without polymer release, higher zeta potential and lower pH/charge dependency. These superior characteristics explained the significantly higher removal of organic and inorganic anionic pollutants by this composite, in comparison with the removal by APC and by many reported sorbents. For example, the filtration (20 pore volumes) of selenate by GPC, APC and a commercial resin column was complete (100%), negligible (0%) and reached 90% removal, respectively. At low-moderate pH, the grafted polymer undergoes protonation, promoting pollutant adsorption, whereas at high pH, the polymer deprotonates, promoting pollutant desorption. Indeed, 'in-column' regeneration of the GPC sorbents was achieved by increasing pH, and upon a second filtration cycle, no reduction in filter capacity was observed. These findings suggest the possible applicability of this stimuli-responsive sorbent for water treatment.
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Affiliation(s)
- Ido Gardi
- Department of Soil and Water Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Yael G. Mishael
- Department of Soil and Water Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot, Israel
- CONTACT Yael G. Mishael Department of Soil and Water Science, The Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot76100, Israel
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Zhang X, Wang W, Dai S, Cui F. Synchronous, efficient and fast removal of phosphate and organic matter by carbon-coated lanthanum nanorods. RSC Adv 2018; 8:11754-11763. [PMID: 35542814 PMCID: PMC9079142 DOI: 10.1039/c8ra01519h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 03/19/2018] [Indexed: 11/21/2022] Open
Abstract
Both phosphate and organic carbon can serve as nutrients for microorganism growth. Simultaneous removal of both nutrients would realize the antibacterial strategy of nutrient starvation better to ensure water quality safety. In addition, a short treatment time is the premise for the application of a material in water treatment. Herein, carbon-coated lanthanum nanorods with a uniform distribution of La and C (C–La-MOF) were rationally prepared through glucose and La-MOF hydrothermal treatment and further carbonization to synchronously and rapidly remove phosphate and organic matter. The carbon layer thickness was tuned by varying the hydrothermal time to find the optimal balance between excellent phosphate intake and low lanthanum leakage. C–La-MOF had a strong anti-interference ability and high phosphate capture capacity over a wide pH range of 2–12. Impressively, when phosphate and organic carbon coexisted in solution, their removal performances remained relatively unchanged compared with that when the two nutrients existed independently, and their adsorption equilibriums could be easily reached within 10 min. All of the above results prove that C–La-MOF is a promising material for practical drinking water treatment. The carbon-coated lanthanum nanorods with uniform distribution of La and C can synchronously remove phosphate and organic matter, efficiently and rapidly.![]()
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Affiliation(s)
- Xintong Zhang
- School of Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
| | - Wei Wang
- School of Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
| | - Shiyu Dai
- School of Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
| | - Fuyi Cui
- School of Environment
- Harbin Institute of Technology
- Harbin 150090
- P. R. China
- College of Urban Construction and Environmental Engineering
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40
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Sharma L, Kakkar R. Hierarchical Porous Magnesium Oxide (Hr-MgO) Microspheres for Adsorption of an Organophosphate Pesticide: Kinetics, Isotherm, Thermodynamics, and DFT Studies. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38629-38642. [PMID: 29027786 DOI: 10.1021/acsami.7b14370] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, hierarchical porous magnesium oxide (Hr-MgO) microspheres have been fabricated from a hydromagnesite precursor via a facile precipitation method followed by calcination. The Hr-MgO microspheres consist of several nanosheet building blocks that generate a flowerlike architecture. Chlorpyrifos (CPF), a persistent organic pollutant, has been chosen as a model organophosphate pesticide to determine the adsorptive capacities of the fabricated Hr-MgO. The equilibrium adsorption data fits well with the Langmuir isotherm model, showing a maximum adsorption capacity of 3974 mg g-1, which is the highest value to date. Both kinetic as well as thermodynamic parameters reveal the spontaneous, exothermic, and pseudo-second-order nature of the adsorption process due to chemisorption between the pesticide and the adsorbent. Density functional theory studies suggest the importance of hydroxylation on the MgO surface for the successful destructive adsorption, which takes place via the cleavage of S═P and Cl-C bonds resulting in the fragmentation of CPF, which is in good agreement with Fourier transform infrared and mass spectrometric studies. The present study shows the potential use of hierarchically structured porous MgO microspheres as an efficient adsorbent for the removal of CPF pollutant.
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Affiliation(s)
- Lekha Sharma
- Department of Chemistry, University of Delhi , Delhi 110007, India
| | - Rita Kakkar
- Department of Chemistry, University of Delhi , Delhi 110007, India
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41
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Feng J, Gao M, Zhang Z, Liu S, Zhao X, Ren Y, Lv Y, Fan Z. Fabrication of mesoporous magnesium oxide nanosheets using magnesium powder and their excellent adsorption of Ni (II). J Colloid Interface Sci 2017; 510:69-76. [PMID: 28938178 DOI: 10.1016/j.jcis.2017.09.047] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/12/2017] [Accepted: 09/12/2017] [Indexed: 10/18/2022]
Abstract
Mesoporous MgO nanosheets with a high adsorption rate and excellent adsorption capacity for removing Ni (II) were successfully synthesized by a hydrothermal and annealing method. The Mg(OH)2 was first synthesized by a hydrothermal process using magnesium powder as the starting material. MgO was then obtained by annealing the as-prepared Mg(OH)2 at 450°C. The advantage of the magnesium powder as the starting material is it slowly generated Mg2+. Thus, the low centration of Mg2+ guaranteed a slow rate of forming Mg(OH)2, which benefited with a mesoporous structure. The effect of the hydrothermal time on the structure and adsorption performance was studied. The results showed that the MgO synthesized for 4h had the highest adsorption performance of 2217mg/g and the highest adsorption rate, which resulted in an efficient adsorption of 96% in 5min for Ni (II) with the concentration of 500mg/L.
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Affiliation(s)
- Jing Feng
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
| | - Mingming Gao
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Zhiqiang Zhang
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Shengna Liu
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Xinyu Zhao
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Yueming Ren
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Yanzhuo Lv
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Zhuangjun Fan
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
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42
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Synthesis of pillar and microsphere-like magnesium oxide particles and their fluoride adsorption performance in aqueous solutions. KOREAN J CHEM ENG 2017. [DOI: 10.1007/s11814-017-0160-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Pradeep EKC, Ohtani M, Kawaharamura T, Kobiro K. Single-step Simple Solvothermal Synthetic Approach to Ultrafine MgO Nanocrystals Using High-temperature and High-pressure Acetonitrile. CHEM LETT 2017. [DOI: 10.1246/cl.170185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ellawala K. C. Pradeep
- Center for Nanotechnology, Research Institute, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
| | - Masataka Ohtani
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
- Laboratory for Structural Nanochemistry, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
| | - Toshiyuki Kawaharamura
- Center for Nanotechnology, Research Institute, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
| | - Kazuya Kobiro
- Center for Nanotechnology, Research Institute, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
- Laboratory for Structural Nanochemistry, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
- Research Center for Material Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502
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Penke YK, Anantharaman G, Ramkumar J, Kar KK. Aluminum Substituted Cobalt Ferrite (Co-Al-Fe) Nano Adsorbent for Arsenic Adsorption in Aqueous Systems and Detailed Redox Behavior Study with XPS. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11587-11598. [PMID: 28257174 DOI: 10.1021/acsami.6b16414] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Arsenic [As(III) and As(V)] adsorption on aluminum substituted cobalt ferrite (Co-Al-Fe) ternary metal oxide adsorbent is reported by means of qualitative and quantitative spectroscopy tools. IR and Raman active signals were observed around 810-920 cm-1 band indicate different As-OHcomplexed and As-Ouncomplexed stretching vibrations on to the adsorbent. The adsorption behavior of arsenic (III and V) onto these adsorbents is studied as a function of contact time, different concentrations, and pH conditions. The kinetics study on adsorption were performed to understand nature of adsorption which supports the Pseudo Second Order (PSO) model. The adsorption isotherms study indicates Freundlich type of adsorption. The maximum adsorption capacity of Co-Al-Fe adsorbent is observed around 130 and 76 mg g-1 for As(III) and As(V) systems, respectively. Detailed XPS study of As 3d, Fe 2p, Co 2p, and O 1s spectra has been reported in explaining the redox behavior and ligand exchange reactions in supporting arsenic adsorption mechanism.
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Affiliation(s)
- Yaswanth K Penke
- Materials Science Programme, ‡Department of Chemistry, §Department of Mechanical Engineering, Indian Institute of Technology Kanpur , Kanpur 208016, India
| | - Ganapathi Anantharaman
- Materials Science Programme, ‡Department of Chemistry, §Department of Mechanical Engineering, Indian Institute of Technology Kanpur , Kanpur 208016, India
| | - Janakarajan Ramkumar
- Materials Science Programme, ‡Department of Chemistry, §Department of Mechanical Engineering, Indian Institute of Technology Kanpur , Kanpur 208016, India
| | - Kamal K Kar
- Materials Science Programme, ‡Department of Chemistry, §Department of Mechanical Engineering, Indian Institute of Technology Kanpur , Kanpur 208016, India
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45
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Koju NK, Song X, Wang Q. Effective remediation of low-concentration cadmium in groundwater using nano-scale magnesia. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:10819-10832. [PMID: 28290088 DOI: 10.1007/s11356-017-8697-y] [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: 09/29/2016] [Accepted: 02/27/2017] [Indexed: 06/06/2023]
Abstract
Cadmium (Cd), one of the hazardous elements in groundwater, is a severe threat to human health and ecological systems even at low concentrations. This study explores the effectiveness of commercial and self-synthesized nano-scale magnesia (NMgO) for remediating low-concentration Cd in groundwater as well as their associated removal mechanisms. The sorption kinetic data for both NMgOs were well fitted to the pseudo-second-order model and the calculated q e values matched the experimental q e values for both commercial and self-synthesized NMgOs. The sorption equilibrium data for both NMgOs were well fitted to the Langmuir isotherm model, with the maximum Cd sorption capacity (q e) of 19.25 and 16.54 mg/g at an initial concentration range of 5-200 μg/L and a temperature of 25 °C, for commercial and self-synthesized NMgOs, respectively. The combined sorption kinetics and equilibrium data suggest that the sorption onto both NMgOs follows a monolayer chemisorption. The scanning electron microscope-energy dispersive X-ray (SEM-EDX), Fourier transform infrared spectroscopy (FTIR), and X-ray diffractometer (XRD) analyses show that the chemisorption of Cd onto commercial NMgO is due to the formation of Cd(OH)2, which precipitates on the sorbent surface. For the self-synthesized NMgO, it was demonstrated that the hydroxyl group plays a role in the chemisorption process and the amount of Cd sorbed on the sorbent was quantified. The results of batch experiments showed that both NMgOs removed Cd effectively, obtaining a removal efficiency of more than 99%, under different experimental conditions of pH, sorbent dosage, co-existing ions, and simulated groundwater. Results from both the sorption isotherm and desorption experiments indicated strong bonding between Cd and both NMgOs, suggesting that NMgOs are safe, effective, and practical sorbents to remediate Cd in groundwater.
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Affiliation(s)
- Neel Kamal Koju
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 21008, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xin Song
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 21008, China.
| | - Qing Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 21008, China
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46
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Lingamdinne LP, Choi YL, Kim IS, Yang JK, Koduru JR, Chang YY. Preparation and characterization of porous reduced graphene oxide based inverse spinel nickel ferrite nanocomposite for adsorption removal of radionuclides. JOURNAL OF HAZARDOUS MATERIALS 2017; 326:145-156. [PMID: 28013158 DOI: 10.1016/j.jhazmat.2016.12.035] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 12/08/2016] [Accepted: 12/19/2016] [Indexed: 06/06/2023]
Abstract
For the removal of uranium(VI) (U(VI)) and thorium(IV) (Th(IV)), graphene oxide based inverse spinel nickel ferrite (GONF) nanocomposite and reduced graphene oxide based inverse spinel nickel ferrite (rGONF) nanocomposite were prepared by co-precipitation of GO with nickel and iron salts in one pot. The spectral characterization analyses revealed that GONF and rGONF have a porous surface morphology with an average particle size of 41.41nm and 32.16nm, respectively. The magnetic property measurement system (MPMS) studies confirmed the formation of ferromagnetic GONF and superparamagnetic rGONF. The adsorption kinetics studies found that the pseudo-second-order kinetics was well tune to the U(VI) and Th(IV) adsorption. The results of adsorption isotherms showed that the adsorption of U(VI) and Th(IV) were due to the monolayer on homogeneous surface of the GONF and rGONF. The adsorptions of both U(VI) and Th(IV) were increased with increasing system temperature from 293 to 333±2K. The thermodynamic studies reveal that the U(VI) and Th(IV) adsorption onto GONF and rGONF was endothermic. GONF and rGONF, which could be separated by external magnetic field, were recycled and re-used for up to five cycles without any significant loss of adsorption capacity.
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Affiliation(s)
| | - Yu-Lim Choi
- Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea
| | - Im-Soon Kim
- Graduate School of Environmental Studies, Kwangwoon University, Seoul, 139-701, Republic of Korea
| | - Jae-Kyu Yang
- Ingenium College of Liberal Arts, Kwangwoon University, Seoul, 139-701, Republic of Korea
| | - Janardhan Reddy Koduru
- Graduate School of Environmental Studies, Kwangwoon University, Seoul, 139-701, Republic of Korea.
| | - Yoon-Young Chang
- Department of Environmental Engineering, Kwangwoon University, Seoul, 139-701, Republic of Korea.
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47
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Sharma L, Kakkar R. Hierarchically structured magnesium based oxides: synthesis strategies and applications in organic pollutant remediation. CrystEngComm 2017. [DOI: 10.1039/c7ce01755c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this highlight, we review the design and formation of MgO based hierarchical structures and cover some selected examples on their applications in adsorption of organic contaminants.
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Affiliation(s)
- Lekha Sharma
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Rita Kakkar
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
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48
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Purwajanti S, Zhang H, Huang X, Song H, Yang Y, Zhang J, Niu Y, Meka AK, Noonan O, Yu C. Mesoporous Magnesium Oxide Hollow Spheres as Superior Arsenite Adsorbent: Synthesis and Adsorption Behavior. ACS APPLIED MATERIALS & INTERFACES 2016; 8:25306-12. [PMID: 27600107 DOI: 10.1021/acsami.6b08322] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Arsenic contamination in natural water has posed a significant threat to global health due to its toxicity and carcinogenity. Adsorption technology is an easy and flexible method for arsenic removal with high efficiency. In this Article, we demonstrated the synthesis of mesoporous MgO hollow spheres (MgO-HS) and their application as high performance arsenite (As(III)) adsorbent. MgO-HS with uniform particle size (∼180 nm), high specific surface area (175 m(2) g(-1)), and distinguished mesopores (9.5 nm in size) have been prepared by hard-templating approach using mesoporous hollow carbon spheres as templates. An ultrahigh maximum As(III) adsorption capacity (Qmax) of 892 mg g(-1) was achieved in batch As(III) removal study. Adsorption kinetic study demonstrated that MgO-HS could enable As(III) adsorption 6 times faster as a commercial MgO adsorbent. The ultrahigh adsorption capacity and faster adsorption kinetics were attributed to the unique structure and morphology of MgO-HS that enabled fast transformation into a flower-like porous structure composed of ultrathin Mg(OH)2 nanosheets. This in situ formed structure provided abundant and highly accessible hydroxyl groups, which enhanced the adsorption performance toward As(III). The outstanding As(III) removal capability of MgO-HS showed their great promise as highly efficient adsorbents for As(III) sequestration from contaminated water.
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Affiliation(s)
- Swasmi Purwajanti
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
- The Agency for Assessment and Application of Technology (BPPT), Indonesian Ministry of Research, Technology and Higher Education , Jl. M.H. Thamrin No.8, Jakarta 10340, Indonesia
| | - Hongwei Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Xiaodan Huang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Hao Song
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Yannan Yang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Jun Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Yuting Niu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Anand Kumar Meka
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Owen Noonan
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
| | - Chengzhong Yu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland , Brisbane, QLD 4072, Australia
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49
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Penke YK, Anantharaman G, Ramkumar J, Kar KK. Aluminum substituted nickel ferrite (Ni–Al–Fe): a ternary metal oxide adsorbent for arsenic adsorption in aqueous medium. RSC Adv 2016. [DOI: 10.1039/c6ra06332b] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this article synthesis and characterization of ternary metal oxide of aluminum substituted nickel ferrite and its adsorption capability for arsenic [(As(iii)) and (As(v))] species have been reported.
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Affiliation(s)
- Yaswanth K. Penke
- Materials Science Programme
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
| | | | - Janakarajan Ramkumar
- Materials Science Programme
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
- Department of Mechanical Engineering
| | - Kamal K. Kar
- Materials Science Programme
- Indian Institute of Technology Kanpur
- Kanpur-208016
- India
- Department of Mechanical Engineering
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50
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Zheng Y, Zhang X, Wang X, Wang Q, Bai Z, Zhang Z. Morphological and surface structural evolutions of MgO particles from parallelograms to rods. CrystEngComm 2016. [DOI: 10.1039/c6ce00069j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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