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Gil-Díaz M, Álvarez-Aparicio J, Alonso J, Mancho C, Lobo MC, González J, García-Gonzalo P. Soil properties determine the impact of nZVI on Lactuca sativa L and its rhizosphere. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 341:122683. [PMID: 37827356 DOI: 10.1016/j.envpol.2023.122683] [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: 07/19/2023] [Revised: 09/08/2023] [Accepted: 10/02/2023] [Indexed: 10/14/2023]
Abstract
Nanoscale zero-valent iron (nZVI) is a promising material tool for the remediation of metal(loid)-contaminated soils since it reduces metal(loid) availability and plant uptake, thereby enhancing the development of the plants. However, the effects of nZVI as nanoparticles on soil properties, plants, and the microbial rhizosphere in unpolluted soils are poorly understood. Here we tested the impact of nZVI at different doses (0.5 and 5% of commercial suspension) on soil properties, lettuce plants, and their microbial rhizosphere in two non-contaminated soils with distinct physico-chemical properties (alkaline versus acidic soil). To this end, a pot experiment was performed with lettuce plants in a growth chamber for a month. Both soils showed an increase in of pH and available Fe after nZVI application. However, these effects were more marked in the acidic soil. In this regard, the plants in this soil showed increased biomass and Fe content. TEM analysis revealed that although the roots and leaves of plants grown in the alkaline soil showed better cell integrity than those in acidic soil-an observation that was consistent with the visual appearance of the plants-the former were more affected by the nZVI treatment. Regarding the microbial rhizosphere, in general, nZVI enhanced enzyme activity regardless of the soil type. Microbial functional diversity showed a significant decline in response to nZVI in alkaline soil. In contrast, the 0.5% nZVI treatment had a positive effect on this parameter in acidic soil. Bacterial genetic diversity was less affected by the presence of nZVI than fungal diversity, which was higher in nZVI-treated acidic soils. In addition, alterations of bacterial and fungal communities were associated with available Fe in acidic soil. In conclusion, soil properties play a key role in determining the effects of nZVI on lettuce plants and their rhizosphere.
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Affiliation(s)
- M Gil-Díaz
- IMIDRA - Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario, Finca "El Encín", Alcalá de Henares, 28805, Madrid, Spain.
| | - J Álvarez-Aparicio
- IMIDRA - Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario, Finca "El Encín", Alcalá de Henares, 28805, Madrid, Spain
| | - J Alonso
- IMIDRA - Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario, Finca "El Encín", Alcalá de Henares, 28805, Madrid, Spain
| | - C Mancho
- IMIDRA - Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario, Finca "El Encín", Alcalá de Henares, 28805, Madrid, Spain
| | - M C Lobo
- IMIDRA - Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario, Finca "El Encín", Alcalá de Henares, 28805, Madrid, Spain
| | - J González
- IMIDRA - Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario, Finca "El Encín", Alcalá de Henares, 28805, Madrid, Spain
| | - P García-Gonzalo
- IMIDRA - Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentario, Finca "El Encín", Alcalá de Henares, 28805, Madrid, Spain
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Bhatt P, Joshi S, Urper Bayram GM, Khati P, Simsek H. Developments and application of chitosan-based adsorbents for wastewater treatments. ENVIRONMENTAL RESEARCH 2023; 226:115530. [PMID: 36863653 DOI: 10.1016/j.envres.2023.115530] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/05/2023] [Accepted: 02/18/2023] [Indexed: 06/18/2023]
Abstract
Water quality is deteriorating continuously as increasing levels of toxic inorganic and organic contaminants mostly discharging into the aquatic environment. Removal of such pollutants from the water system is an emerging research area. During the past few years use of biodegradable and biocompatible natural additives has attracted considerable attention to alleviate pollutants from wastewater. The chitosan and its composites emerged as a promising adsorbents due to their low price, abundance, amino, and hydroxyl groups, as well as their potential to remove various toxins from wastewater. However, a few challenges associated with its practical use include lack of selectivity, low mechanical strength, and solubility in acidic medium. Therefore, several approaches for modification have been explored to improve the physicochemical properties of chitosan for wastewater treatment. Chitosan nanocomposites found effective for the removal of metals, pharmaceuticals, pesticides, microplastics from the wastewaters. Nanoparticle doped with chitosan in the form of nano-biocomposites has recently gained much attention and proven a successful tool for water purification. Hence, applying chitosan-based adsorbents with numerous modifications is a cutting-edge approach to eliminating toxic pollutants from aquatic systems with the global aim of making potable water available worldwide. This review presents an overview of distinct materials and methods for developing novel chitosan-based nanocomposites for wastewater treatment.
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Affiliation(s)
- Pankaj Bhatt
- Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN, 47906, USA.
| | - Samiksha Joshi
- Graphic Era Hill University Bhimtal, Nainital, Uttarakhand, India
| | - Gulsum Melike Urper Bayram
- National Research Center on Membrane Technologies, Istanbul Technical University, Maslak, Istanbul, 34469, Turkey
| | - Priyanka Khati
- Crop Production Division, Vivekananda Parvatiya Krishi Anusandhan Sansthan, Almora, Uttarakhand, India
| | - Halis Simsek
- Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN, 47906, USA.
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Madan S, Thapa U, Tiwari S, Tiwari SK, Jakka SK, Soares MJ. Designing of a nanoscale zerovalent iron@fly ash composite as efficient and sustainable adsorbents for hexavalent chromium (Cr(VI)) from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:22474-22487. [PMID: 33415643 DOI: 10.1007/s11356-020-11692-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 11/16/2020] [Indexed: 06/12/2023]
Abstract
The present study encompasses a unique concept involving the formation of core-shell particles with surface-activated fly ash (FA) as core and nanoscale zerovalent iron (nZVI) particles as shell, which not only imparts high adsorption efficiency for Cr(VI) but also contributes to fruitful utilization of FA while overcoming the drawbacks associated with ZVI nanoparticles (aggregation, rapid oxidation and less durability). The otherwise inert surface of FA has been modified and activated to achieve a uniform and stable layer of nZVI over FA. The functionalized particles were studied using FE-SEM/EDAX, HR-TEM, XRD and FT-IR studies for its physical, functional and morphological characteristics. The results indicate the strong adsorption ability of nZVI@FA particles, with 100% removal efficiency within 10 min at low initial concentrations of Cr(VI), which is appreciably higher than that of pure fly ash (26%) after 60 min of reaction. Besides, the so-formed structure of composite aids to improve its life, as the synthesized nZVI@FA particles could be efficiently regenerated and reused up to 5 subsequent adsorption-desorption cycles, which is in contrast with the ability of fly ash considering its low desorption potential. Hence, the composite material proves to be an effective and sustainable alternative for treatment of a waste using a waste.
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Affiliation(s)
- Shubhangi Madan
- Amity Institute of Applied Sciences, Amity University, Noida, 201303, India
| | - Urvashi Thapa
- Amity Institute of Applied Sciences, Amity University, Noida, 201303, India
| | - Sangeeta Tiwari
- Amity Institute of Applied Sciences, Amity University, Noida, 201303, India.
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Altintig E, Alsancak A, Karaca H, Angın D, Altundag H. The comparison of natural and magnetically modified zeolites as an adsorbent in methyl violet removal from aqueous solutions. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2021.1874368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Esra Altintig
- Pamukova Vocational School, Chemical and Chemical Processing Technologies Department, Sakarya University of Applied Sciences, Sakarya, Turkey
| | | | - Huseyin Karaca
- Art and Science Faculty, Chemistry Department, Sakarya University, Sakarya, Turkey
| | - Dilek Angın
- Department of Food Engineering, Sakarya University, Sakarya, Turkey
| | - Hüseyin Altundag
- Art and Science Faculty, Chemistry Department, Sakarya University, Sakarya, Turkey
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Liu T, Sun Y, Wang ZL. Stabilized chitosan/Fe(0)-nanoparticle beads to remove heavy metals from polluted sediments. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:1090-1097. [PMID: 26942531 DOI: 10.2166/wst.2015.556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Sediment contamination by heavy metals has become a widespread problem that can affect the normal behaviors of rivers and lakes. After chitosan/Fe(0)-nanoparticles (CS-NZVI) beads were cross-linked with glutaraldehyde (GLA), their mechanical strength, stability and separation efficiency from the sediment were obviously improved. Moreover, the average aperture size of GLA-CS-NZVI beads was 20.6 μm and NZVI particles were nearly spherical in shape with a mean diameter of 40.2 nm. In addition, the pH showed an insignificant effect on the removal rates from the sediment. Due to the dissolution of metals species into aqueous solutions as an introduction of the salt, the removal rates of all heavy metals from the sediment were increased with an increase of the salinity. The competitive adsorption of heavy metals between the sediment particles and GLA-CS-NZVI beads became stronger as the sediment particles became smaller, leading to decreased removal rates. Therefore, the removal efficiency could be enhanced by optimizing experimental conditions and choosing appropriate materials for the target contaminants.
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Affiliation(s)
- T Liu
- Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China E-mail:
| | - Y Sun
- Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China E-mail:
| | - Z L Wang
- Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China E-mail: ; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
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Facile synthesis of cross linked-chitosan–grafted-polyaniline composite and its Cr(VI) uptake studies. Int J Biol Macromol 2014; 67:210-9. [DOI: 10.1016/j.ijbiomac.2014.03.035] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 03/08/2014] [Accepted: 03/20/2014] [Indexed: 11/22/2022]
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Horzum N, Demir MM, Nairat M, Shahwan T. Chitosan fiber-supported zero-valent iron nanoparticles as a novel sorbent for sequestration of inorganic arsenic. RSC Adv 2013. [DOI: 10.1039/c3ra23454a] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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