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Wimalawansa SJ, Dissanayake CB. Nanocrystal-induced chronic tubular-nephropathy in tropical countries: diagnosis, mitigation, and eradication. Eur J Med Res 2023; 28:221. [PMID: 37408060 DOI: 10.1186/s40001-023-01162-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 06/09/2023] [Indexed: 07/07/2023] Open
Abstract
In tropical countries, a mysterious tubulo-interstitial chronic renal disease (CKD), unrelated to diabetes, hypertension, and immunological causes, manifested four decades ago. Approximately 25,000 primarily middle-aged male farmers succumb annually to this crystal-tubular nephropathy (CTN). Without any known causative factors, it was identified as CKD of unknown aetiology (CKDu). Because multiple factors contribute to causing it later, was changed to CKD of multi-factorial (CKDmfo). Despite no evidence, it was hypothesised to cause by agrochemicals or heavy metals in food or drinking contaminated water. However, current data suggest that the CKD-CTN is due to natural geogenic water contamination. Consumption of concentrated stagnant groundwater from deep-dug wells and tube wells containing hard water and fluoride, overdecades is necessary for its clinical manifestations. In all affected countries have prolonged annual dry seasons that led to the evopo-concentration of ions and minerals in groundwater, making hard water even more unpalatable, thus, peasants consume lesser amounts of water. They develop chronic dehydration from daily exposure to hot climatic conditions aggravated by regular alcohol intake. These conditions provide a highly conducive environment-a perfect storm for calcium phosphate (CaPO4) crystal formation in renal tissues. Our recent histological and preliminary electron microscopic data reveal deposition of CaPO4 crystals and nano-tubes in kidneys. While CaPO4 nano-minerals are unstable, the presence of fluoride ions stabilises and allows their growth. This new concept paves the path for highly cost-effective, straightforward local solutions to protect farm workers and eliminate the disease, without embarking on expensive medications, interventions, or building hospitals. Chronic dehydration-associated CKD-CTN is preventable by increased consumption of potable water. Increasing clean water consumption reduces CKD-CTN incidence, and associated morbidities and premature deaths. However, the damage becomes irreversible when the disease advances beyond CKD stage IIIB. The incidence of this deadly renal failure can be prevented by its education, lifestyle changes, and increased water consumption, not by treating the renal disease or expanding dialysis centres/hospitals, or transplantation services. Eradication of CKD-CTN cost significantly less than the current approach of treating affected persons and unnecessarily expanding health infrastructure. Since the manifestation of CKD-CTN is due to consuming naturally contaminated drinking water (with calcium containing hard water and fluoride), it is not difficult to remove these to prevent CKD-CTN: thus, international assistance is unwarranted for its eradication. The straightforward approaches described here will prevent CKD-CTN and save thousands of lives in affected farming communities.
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Affiliation(s)
- Sunil J Wimalawansa
- Cardiometabolic & Endocrine Institute, Department of Medicine, Endocrinology, Nutrition, (formerly UMDNJ/Rutgers University), New Brunswick, NJ, 08902, USA.
- , Moratuwa, Sri Lanka.
| | - Chandra B Dissanayake
- Department of Geology, University of Peradeniya, Peradeniya, Sri Lanka
- Institute of Fundamental Studies, Kandy, Sri Lanka
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Al-Senani GM, Mwafy EA, Al-Ahmadi AN, ElFaham MM, Almotairy ARZ, Elsharkawy W, Mostafa AM. Effect of laser pulse repetition rate in the laser ablation of nickel metal in PVA solution on the adsorption efficiency of NiO/PVA nanocomposite against phosphate ions. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2023.110872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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3
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Faroughi Niya H, Hazeri N, Fatahpour M, Maghsoodlou MT. Fe3O4@THAM-piperazine: a novel and highly reusable nanocatalyst for one-pot synthesis of 1,8-dioxo-octahydro-xanthenes and benzopyrans. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04166-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Xing M, Xie Q, Li X, Guan T, Wu D. Monolayers of an organosilane on magnetite nanoparticles for the fast removal of Cr(VI) from water. ENVIRONMENTAL TECHNOLOGY 2020; 41:658-668. [PMID: 30074861 DOI: 10.1080/09593330.2018.1508254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 07/28/2018] [Indexed: 06/08/2023]
Abstract
Monolayers of N-(2-aminoethyl)-3-aminopropyltrimethoxysilane have been established on magnetite nanoparticles to develop a novel magnetic adsorbent for fast decontamination of hexavalent chromium (Cr(VI)) from water. Results indicated that monolayer adsorption of the silane from water took place at low concentrations (<300 mg/L) and around 100% surface coverage was obtained at temperatures ≥90°C. The hydrolysed silane was anchored to the magnetite surface through condensation reactions between its silanol groups and the surface hydroxyl groups of magnetite. The functional amine groups were protonated by acid treatment for adsorbing Cr(VI). The monolayer of the silane on magnetite (MSM) with approximately 100% surface coverage showed extremely rapid adsorption kinetics for Cr(VI), such that the process was complete within 1 min. This enables the treatment of large amounts of sewage per unit time. The adsorption capacity for Cr(VI) was 8.0 mg/g, as estimated from the Langmuir isotherm model. The saturation magnetization of the MSM reached 64.16 emu/g, allowing easy magnetic recovery from water. In the presence of up to 50-fold molar excesses of chloride and nitrate anions, little effect on Cr(VI) removal was seen, but moderate and large impacts were observed with sulphate and hydroxyl anions, respectively. Desorption of adsorbed Cr(VI) and regeneration of the MSM were successfully achieved by NaOH and HCl treatments to deprotonate and protonate the amine groups, respectively. By selecting a silane with suitable functional groups, the surface properties may be tailored for a particular pollutant.
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Affiliation(s)
- Mingchao Xing
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Qiang Xie
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Xiaodi Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Tong Guan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Deyi Wu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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Hou L, Liang Q, Wang F. Mechanisms that control the adsorption–desorption behavior of phosphate on magnetite nanoparticles: the role of particle size and surface chemistry characteristics. RSC Adv 2020; 10:2378-2388. [PMID: 35494559 PMCID: PMC9048625 DOI: 10.1039/c9ra08517c] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 12/30/2019] [Indexed: 11/21/2022] Open
Abstract
Eutrophication caused by excessive phosphate discharge into surface water has raised wide concern, and the efficient removal of phosphates from wastewater using sorption methods is very important. In our study, magnetite particles with two different sizes and different surface characteristics were chosen as the sorbents to examine their adsorption and desorption behavior toward phosphate. Scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and N2 adsorption–desorption methods were used to characterize the morphological and surface chemical properties of the two differently sized magnetite particles. Adsorption kinetics and isotherm models (including the pseudo-first-order, Freundlich, Langmuir and Temkin models) were used to fit the experimental data, and to help with the mechanistic discussions. It was found that the nanometer-sized magnetite (nFe3O4) has a much higher surface area, larger pore volume, higher amounts of surface functional groups, and a lower point of zero charge (pHPZC) value than the micrometer-sized magnetite (Fe3O4). The adsorption kinetics show that reaching adsorption equilibrium in the case of nFe3O4 is much slower, and the particle size or surface characteristics of the magnetite may become the main factor determining the adsorption rate of the phosphate to magnetite in the rapid or slow adsorption step, respectively. nFe3O4 shows much stronger adsorption of phosphate compared to Fe3O4, which may be attributed to the larger surface area of the magnetite with a smaller particle size. In addition, the amount of functional groups and the surface electrical properties may also affect the adsorption of phosphate to magnetite by influencing the formation of the outer-sphere and/or inner-sphere complexes. The adsorption/desorption of phosphate to/from the magnetite decreases/increases with increasing pH, and the extent of change is more marked for nFe3O4. Increasing the ionic strength of the solution increases the adsorption of phosphate to the two differently sized magnetite particles, whereas the presence of humic acid only increases the adsorption of phosphate to Fe3O4. These trends may be caused by the different extents of change of the surface properties or the dispersion state of the two differently sized magnetite particles under different solution chemistry conditions. The results imply that when the synthesis of magnetite-based materials for phosphate sorption is performed, both the particle size and surface properties should be considered in order to realize the efficient and economical removal of phosphate from wastewater. Both the particle size and surface properties are shown to determine the adsorption of phosphate to magnetite particles.![]()
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Affiliation(s)
- Lei Hou
- College of Ecology and Environment
- Southwest Forestry University
- Kunming
- China
| | - Qibin Liang
- College of Ecology and Environment
- Southwest Forestry University
- Kunming
- China
| | - Fang Wang
- Tianjin Key Laboratory of Water Resources and Environment
- Tianjin Normal University
- Tianjin 300387
- China
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Faroughi Niya H, Hazeri N, Rezaie Kahkhaie M, Maghsoodlou MT. Preparation and characterization of MNPs–PhSO3H as a heterogeneous catalyst for the synthesis of benzo[b]pyran and pyrano[3,2-c]chromenes. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04056-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Arsenic removal by magnetite-loaded amino modified nano/microcellulose adsorbents: Effect of functionalization and media size. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.08.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Abo Markeb A, Llimós-Turet J, Ferrer I, Blánquez P, Alonso A, Sánchez A, Moral-Vico J, Font X. The use of magnetic iron oxide based nanoparticles to improve microalgae harvesting in real wastewater. WATER RESEARCH 2019; 159:490-500. [PMID: 31128473 DOI: 10.1016/j.watres.2019.05.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 04/20/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
A novel approach for harvesting Scenedesmus sp. microalgae from real wastewater by using adsorbents of magnetite-based nanoparticles (Fe3O4 NPs) was tested in this study for the first time for this microalgae. Using these NPs, the harvesting efficiency was even higher than 95%. The optimal conditions (0.14 gNPs/L, a short magnetic separation time of only 8 min and 27 min of contact time) were found using the response surface methodology. The best fitting of the adsorption equilibrium results was achieved by the Langmuir isotherm model, and the maximum adsorption capacity for Scenedesmus sp. reached 3.49 g dry cell weight (DCW)/g Fe3O4 NPs. Zeta potential measurements and the Dubinin-Radushkevich isotherm model analysis pointed out that the main adsorption mechanism between Scenedesmus sp. cells and Fe3O4 NPs was electrostatic interaction. Finally, Fe3O4 NPs were six times successfully reused by combining an alkaline treatment with an ultrasonication process, which implies microalgae lysis. The results herein obtained highlight the potential for magnetic separation of microalgae from wastewater, which is capable of reaching a high harvesting efficiency in a very short time.
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Affiliation(s)
- Ahmad Abo Markeb
- Departament of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain; Departament of Chemistry, Faculty of Science, Assiut University, 71516, Assiut, Egypt
| | - Jordi Llimós-Turet
- Departament of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Ivet Ferrer
- GEMMA - Group of Environmental Engineering and Microbiology, Department of Civil and Environmental Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, c/Jordi Girona 1-3, Building D1, E-08034, Barcelona, Spain
| | - Paqui Blánquez
- Departament of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Amanda Alonso
- Departament of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Antoni Sánchez
- Departament of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Javier Moral-Vico
- Departament of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
| | - Xavier Font
- Departament of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
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Afridi MN, Lee WH, Kim JO. Effect of phosphate concentration, anions, heavy metals, and organic matter on phosphate adsorption from wastewater using anodized iron oxide nanoflakes. ENVIRONMENTAL RESEARCH 2019; 171:428-436. [PMID: 30735950 DOI: 10.1016/j.envres.2019.01.055] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/26/2018] [Accepted: 01/30/2019] [Indexed: 06/09/2023]
Abstract
Phosphorus is a necessary nutrient for the growth and survival of living beings. Nevertheless, an oversupply of phosphorus in wastewater results in eutrophication. Therefore, its removal from wastewater is important. However, coexisting components, such as anions, heavy metals, and organic matter, might inhibit the phosphate-adsorption mechanism by competing for the active surface sites of the adsorbent. In this study, iron oxide nanoflakes (INFs) were fabricated on iron foil via anodization. The rate of phosphate adsorption from wastewater onto INFs in the presence of three different coexisting components-anions, heavy metals, and organic matter-was evaluated. The morphology of the INFs was analyzed by X-ray diffraction, field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and Fourier-transform infrared spectroscopy. The phosphate adsorption equilibrium time using INFs was found to be 1 h. The Elovich model (R2 > 0.99) and the Langmuir model (R2 >0.95) respectively provided the best description of the adsorption kinetics and isotherm, suggesting the chemisorption nature of adsorption. The estimated adsorption capacity of the INFs was 21.5 mg-P g-1. The effect of anions (chloride, sulfate, nitrate, and carbonate) and heavy metals (Cd, As, Cr, and Pb) was studied at three different molar ratios (0.5:1, 1:1, and 1.5:1). The effect of different types of organic matter, such as citric acid, humic acid, and oxalic acid at concentrations of 100 and 200 mg L-1, was also examined. In five regeneration cycles, the total amount of phosphate adsorbed and desorbed, and the recovery percentage were 6.51 mg-P g-1, 5.16 mg-P g-1, and 79.24%, respectively.
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Affiliation(s)
- Muhammad Naveed Afridi
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Won-Hee Lee
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Jong-Oh Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea.
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Chaabane L, Chahdoura H, Moslah W, Snoussi M, Beyou E, Lahcini M, Srairi‐Abid N, Baouab MHV. Synthesis and characterization of Ni (II), Cu (II), Fe (II) and Fe
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O
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nanoparticle complexes with tetraaza macrocyclic Schiff base ligand for antimicrobial activity and cytotoxic activity against cancer and normal cells. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4860] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Laroussi Chaabane
- Unité de Recherche Matériaux et Synthèse Organique (UR17ES31) Institut Préparatoire aux Etudes d’Ingénieurs de MonastirUniversité de Monastir‐Tunisie Bd. de l’environnement 5019 Monastir Tunisie
- UMR CNRS5223, Ingénierie des Matériaux PolymèresUniversité Lyon 1 F‐69622 Villeurbanne France
| | - Hassiba Chahdoura
- Laboratoire de Recherche “Bioressourses, Biologie Intégrative & Valorisation”, Institut Supérieur de Biotechnologie de Monastir Avenue Tahar Hadded BP 74, 5000 Monastir Tunisia
| | - Wassim Moslah
- Université de Tunis El Manar, Institut Pasteur de Tunis, LR11IPT08 Venins et biomolécules thérapeutiques 1002 Tunis Tunisia
| | - Mejdi Snoussi
- Laboratoire de Recherche “Bioressourses, Biologie Intégrative & Valorisation”, Institut Supérieur de Biotechnologie de Monastir Avenue Tahar Hadded BP 74, 5000 Monastir Tunisia
| | - Emmanuel Beyou
- UMR CNRS5223, Ingénierie des Matériaux PolymèresUniversité Lyon 1 F‐69622 Villeurbanne France
| | - Mohammed Lahcini
- Laboratory of Organometallic and Macromolecular Chemistry‐Composites Materials, Faculty of Sciences and TechnologiesCadi Ayyad University Avenue Abdelkrim Elkhattabi, B.P. 549 40000 Marrakech Morocco
- Mohammed VI Polytechnic University Lot 660, Hay Moulay Rachid 43150 Ben Guerir Morocco
| | - Najet Srairi‐Abid
- Université de Tunis El Manar, Institut Pasteur de Tunis, LR11IPT08 Venins et biomolécules thérapeutiques 1002 Tunis Tunisia
| | - Mohamed Hassen V. Baouab
- Unité de Recherche Matériaux et Synthèse Organique (UR17ES31) Institut Préparatoire aux Etudes d’Ingénieurs de MonastirUniversité de Monastir‐Tunisie Bd. de l’environnement 5019 Monastir Tunisie
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Kim JH, Kim SB, Lee SH, Choi JW. Laboratory and pilot-scale field experiments for application of iron oxide nanoparticle-loaded chitosan composites to phosphate removal from natural water. ENVIRONMENTAL TECHNOLOGY 2018; 39:770-779. [PMID: 28332409 DOI: 10.1080/09593330.2017.1310937] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 03/19/2017] [Indexed: 06/06/2023]
Abstract
The aim of this study was to apply iron oxide nanoparticle-chitosan (ION-chitosan) composites to phosphate removal from natural water collected from the Seoho Stream in Suwon, Republic of Korea. Laboratory batch experiments showed that phosphate removal by the ION-chitosan composites was not sensitive to pH changes between pH values of 5.0 and 9.0. During six cycles of adsorption-desorption, the composites could be successfully regenerated with 5 mM NaOH solution and reused for phosphate removal. Laboratory fixed-bed column experiments (column height = 10 and 20 cm, inner diameter = 2.5 cm, flow rate = 8.18 and 16.36 mL/min) demonstrated that the composites could be successfully applied for phosphate removal under dynamic flow conditions. A pilot-scale field experiment was performed in a pilot plant, which was mainly composed of chemical reactor/dissolved air flotation and an adsorption tower, built nearby the Seoho Stream. The natural water was pumped from the Seoho Stream into the pilot plant, passed through the chemical reactor/dissolved air flotation process, and then introduced into the adsorption tower (height = 100 cm, inner diameter = 45 cm, flow rate = 7.05 ± 0.18 L/min) for phosphate removal via the composites (composite volume = 80 L, composite weight = 85.74 kg). During monitoring of the adsorption tower (33 days), the influent total phosphorus (T-P) concentration was in the range of 0.020-0.046 mgP/L, whereas the effluent T-P concentration was in the range of 0.010-0.028 mgP/L. The percent removal of T-P in the adsorption tower was 52.3% with a phosphate removal capacity of 0.059 mgP/g.
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Affiliation(s)
- Jae-Hyun Kim
- a Center for Water Resource Cycle Research , Korea Institute of Science and Technology , Seoul , Republic of Korea
| | - Song-Bae Kim
- b Environmental Functional Materials and Water Treatment Laboratory , Seoul National University , Seoul , Republic of Korea
- c Department of Rural Systems Engineering , Seoul National University , Seoul , Republic of Korea
- d Research Institute for Agriculture and Life Sciences , Seoul National University , Seoul , Republic of Korea
| | - Sang-Hyup Lee
- a Center for Water Resource Cycle Research , Korea Institute of Science and Technology , Seoul , Republic of Korea
- e Green School , Korea University , Seoul , Republic of Korea
| | - Jae-Woo Choi
- a Center for Water Resource Cycle Research , Korea Institute of Science and Technology , Seoul , Republic of Korea
- f Department of Energy and Environmental Engineering , University of Science and Technology (UST) , Daejeon , Republic of Korea
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12
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Nanotechnology in the food sector and potential applications for the poultry industry. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.11.015] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Alonso A, Moral-Vico J, Abo Markeb A, Busquets-Fité M, Komilis D, Puntes V, Sánchez A, Font X. Critical review of existing nanomaterial adsorbents to capture carbon dioxide and methane. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 595:51-62. [PMID: 28376428 DOI: 10.1016/j.scitotenv.2017.03.229] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/24/2017] [Accepted: 03/25/2017] [Indexed: 06/07/2023]
Abstract
Innovative gas capture technologies with the objective to mitigate CO2 and CH4 emissions are discussed in this review. Emphasis is given on the use of nanoparticles (NP) as sorbents of CO2 and CH4, which are the two most important global warming gases. The existing NP sorption processes must overcome certain challenges before their implementation to the industrial scale. These are: i) the utilization of the concentrated gas stream generated by the capture and gas purification technologies, ii) the reduction of the effects of impurities on the operating system, iii) the scale up of the relevant materials, and iv) the retrofitting of technologies in existing facilities. Thus, an innovative design of adsorbents could possibly address those issues. Biogas purification and CH4 storage would become a new motivation for the development of new sorbent materials, such as nanomaterials. This review discusses the current state of the art on the use of novel nanomaterials as adsorbents for CO2 and CH4. The review shows that materials based on porous supports that are modified with amine or metals are currently providing the most promising results. The Fe3O4-graphene and the MOF-117 based NPs show the greatest CO2 sorption capacities, due to their high thermal stability and high porosity. Conclusively, one of the main challenges would be to decrease the cost of capture and to scale-up the technologies to minimize large-scale power plant CO2 emissions.
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Affiliation(s)
- Amanda Alonso
- Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
| | - J Moral-Vico
- Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Ahmad Abo Markeb
- Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | | | - Dimitrios Komilis
- Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Department of Environmental Engineering, Democritus University of Thrace, Xanthi 67132, Greece
| | - Victor Puntes
- Institut Català de Nanotecnologia (ICN), Campus de la UAB, 08193 Bellaterra, Spain; Institució Catalana de Recerca i EstudisAvançats (ICREA), Passeig Lluís Companys, 23, 08010 Barcelona, Spain
| | - Antoni Sánchez
- Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Xavier Font
- Department of Chemical, Biological and Environmental Engineering, Escola d'Enginyeria, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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