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Malesys V, Andrieux-Ledier A, Lavenus P, Simon L. Building a cm 2scale CVD graphene-based gas sensor: modelling the kinetic with a three-site adsorption/desorption Langmuir model. NANOTECHNOLOGY 2024; 35:285501. [PMID: 38579693 DOI: 10.1088/1361-6528/ad3b02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/05/2024] [Indexed: 04/07/2024]
Abstract
In this article, we aim to develop and study a highly sensitive and selective cm2scale graphene-based gas sensor. We present the technology used to fabricate sensors which integrate monolayer chemical vapour deposition graphene: photolithography and transfer of layers. Characterization techniques (optical microscopy, AFM, micro-Raman spectroscopy, transport electrical measurements) ensure a diagnosis of graphene ribbons and allow good reproducibility of technological processes. We present the results of gas characterizations after a 200 ppm NO2exposure. We propose a novel approach for the modelling of the sensor response with a three-site adsorption/desorption Langmuir model. This innovative way of modelling the sensor response should provide a better understanding of the sensor's kinetic and help to overcome the long response time observed with graphene gas sensors.
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Affiliation(s)
- V Malesys
- Institut de Sciences des Matériaux de Mulhouse, CNRS-UMR 7361, Université de Haute Alsace, Mulhouse, France
| | | | - P Lavenus
- DPHY, ONERA, Université Paris Saclay, Châtillon, France
| | - L Simon
- Institut de Sciences des Matériaux de Mulhouse, CNRS-UMR 7361, Université de Haute Alsace, Mulhouse, France
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Xu MM, Liu YH, Zhang X, Lv JA, Zhao RC, Xie LH, Li JR. Highly Efficient Propyne/Propylene Separation in a "Flexible-Robust" and Hydrolytically Stable Cu(II)-MOF. Inorg Chem 2023. [PMID: 37478416 DOI: 10.1021/acs.inorgchem.3c01285] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
Propyne/propylene separation is important in the petrochemical industry but challenging due to their similar physical properties and close molecular sizes. Metal-organic frameworks (MOFs) are a class of promising adsorbents for light hydrocarbon separations. Among them, the so-called "flexible-robust" MOFs combine the advantages of flexibility and rigidity in structure and could show enhanced gas separation selectivity as well as improved gas uptake at low pressure. Interpenetrated MOFs offer a platform to explore the "flexible-robust" feature of MOFs based on their subnetwork displacement in the process of gas adsorption. Herein, we present two hydrolytically stable MOFs (BUT-308 and BUT-309) with interpenetrated structures and fascinating propyne/propylene separation performance. BUT-308 is composed of interpenetrated 2D Cu(BDC-NH2)BPB layers (H2BDC-NH2 = 2-aminobenzene-1,4-dicarboxylic acid; BPB = 1,4-bis(4-pyridyl)benzene), while BUT-309 consists of twofold interpenetrated 3D pillared-layer Cu2(BDC-NH2)2(BPB-CF3) nets (BPB-CF3 = 2-trifluoromethyl-1,4-bis(4-pyridyl)benzene). Gas adsorption measurements showed that BUT-309 was a "flexible-robust" adsorbent with multistep adsorption isotherms for C3H4 rather than C3H6 at a wide temperature range. The guest-dependent pore-opening behavior endows BUT-309 with high potential in the C3H4/C3H6 separation. The C3H4 adsorption measurements of BUT-309 at 273-323 K showed that the lowering of the temperature induced the pore-opening action at lower pressure. Column breakthrough experiments further confirmed the capability of BUT-309 for the efficient removal of C3H4 from a C3H4/C3H6 binary gas, and the C3H6 processing capacity at 273 K (15.7 cm3 g-1) was higher than that at 298 K (35.2 cm3 g-1). This work shows a rare example of "flexible-robust" MOFs and demonstrated its high potential for C3H4/C3H6 separation.
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Affiliation(s)
- Ming-Ming Xu
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Yu-Hui Liu
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Xin Zhang
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Jia-Ao Lv
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Rui-Chao Zhao
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Lin-Hua Xie
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Jian-Rong Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Environmental Chemical Engineering, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
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Potier K, Ariskina K, Obliger A, Leyssale JM. Molecular Simulation of Argon Adsorption and Diffusion in a Microporous Carbon with Poroelastic Couplings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37364167 DOI: 10.1021/acs.langmuir.3c00865] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Neglected for a long time in molecular simulations of fluid adsorption and transport in microporous carbons, adsorption-induced deformations of the matrix have recently been shown to have important effects on both sorption isotherms and diffusion coefficients. Here we investigate in detail the behavior of a recently proposed 3D-connected mature kerogen model, as a generic model of aromatic microporous carbon with atomic H/C ∼ 0.5, in both chemical and mechanical equilibrium with argon at 243 K over an extended pressure range. We show that under these conditions the material exhibits some viscoelasticity, and simulations of hundreds of nanoseconds are required to accurately determine the equilibrium volumes and sorption loadings. We also show that neglecting matrix internal deformations and swelling can lead to underestimations of the loading by up to 19% (swelling only) and 28% (swelling and internal deformations). The volume of the matrix is shown to increase up to about 8% at the largest pressure considered (210 MPa), which induces an increase of about 33% of both pore volume and specific surface area via the creation of additional pores, yet does not significantly change the normalized pore size distribution. Volume swelling is also rationalized by using a well-known linearized microporomechanical model. Finally, we show that self-diffusivity decreases with applied pressure, following an almost perfectly linear evolution with the free volume. Quantitatively, neglecting swelling and internal deformations tends to reduce the computed self-diffusivities.
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Affiliation(s)
- Kévin Potier
- CNRS, Bordeaux INP, ISM,UMR 5255, Université de Bordeaux, Talence F-33400, France
| | - Kristina Ariskina
- Laboratoire des Fluides Complexes et leurs Réservoirs, E2S, UMR 5150, University of Pau and Pays de l'Adour/CNRS/TOTAL, Pau 64000, France
| | - Amaël Obliger
- CNRS, Bordeaux INP, ISM,UMR 5255, Université de Bordeaux, Talence F-33400, France
- Laboratoire des Fluides Complexes et leurs Réservoirs, E2S, UMR 5150, University of Pau and Pays de l'Adour/CNRS/TOTAL, Pau 64000, France
| | - Jean-Marc Leyssale
- CNRS, Bordeaux INP, ISM,UMR 5255, Université de Bordeaux, Talence F-33400, France
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Soroush S, Ronsse F, Park J, Ghysels S, Wu D, Kim KW, Heynderickx PM. Microwave assisted and conventional hydrothermal treatment of waste seaweed: Comparison of hydrochar properties and energy efficiency. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:163193. [PMID: 37003343 DOI: 10.1016/j.scitotenv.2023.163193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 05/13/2023]
Abstract
Waste seaweed is a valuable source for converting into value-added carbon materials. In this study, the production of hydrochar from waste seaweed was optimized for hydrothermal carbonization in a microwave process. The produced hydrochar was compared with hydrochar synthesized by the regular process using a conventional heating oven. The results show that hydrochar produced with a holding time of 1 h by microwave heating has similar properties to the hydrochar produced in a conventionally heated oven for 4 h (200 °C and water/biomass ratio 5): carbon mass fraction (52.4 ± 3.9 %), methylene blue adsorption capacity (40.2 ± 0.2 mg g-1) and similar observations on surface functional groups and thermal stability were made between hydrochars produced by both methods. The analysis of energy consumption showed microwave assisted carbonization consume higher energy in compare to conventional oven. The present results suggest that hydrochar made from waste seaweed and using the microwave technique could be an energy-saving technology for producing hydrochar with similar specifications to hydrochar produced by conventional heating methods.
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Affiliation(s)
- Sepideh Soroush
- Centre for Environmental and Energy Research (CEER)-Engineering of Materials via Catalysis and Characterization, Ghent University Global Campus, 119-5 Songdomunhwa-Ro, Yeonsu-Gu, Incheon 406-840, South Korea; Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, Ghent B-9000, Belgium
| | - Frederik Ronsse
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, Ghent B-9000, Belgium
| | - Jihae Park
- Lab of Plant Growth Analysis, Ghent University Global Campus, 119-5 Songdomunhwa-Ro, Yeonsu-Gu, Incheon 406-840, South Korea
| | - Stef Ghysels
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, Ghent B-9000, Belgium
| | - Di Wu
- Centre for Environmental and Energy Research (CEER)-Engineering of Materials via Catalysis and Characterization, Ghent University Global Campus, 119-5 Songdomunhwa-Ro, Yeonsu-Gu, Incheon 406-840, South Korea; Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, Ghent B-9000, Belgium
| | - Kyoung-Woong Kim
- School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, South Korea
| | - Philippe M Heynderickx
- Centre for Environmental and Energy Research (CEER)-Engineering of Materials via Catalysis and Characterization, Ghent University Global Campus, 119-5 Songdomunhwa-Ro, Yeonsu-Gu, Incheon 406-840, South Korea; Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 653 Coupure Links, Ghent B-9000, Belgium.
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Islam A, Rais S. A facile approach for grafting ion imprinted polymer onto magnetic multi-walled carbon nanotubes for selective removal and preconcentration of cadmium in food and wastewater samples prior to atomic spectrometric determination. Food Chem 2023; 405:134751. [PMID: 36347205 DOI: 10.1016/j.foodchem.2022.134751] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 12/14/2022]
Abstract
A 3D Fe3O4@MWCNT-CdIIP was synthesized by the oxidizing surface of multi-walled carbon nanotubes with carboxylic acid end groups and its subsequent termination with an ion imprinted polymer. An artificial neural network manifests better predictability than the central composite design methodology for optimising the adsorption procedure. The adsorption capacity was 109 mg g-1 (2.5 times more than non-imprinted polymer) under optimized conditions (pH; 5.6, time; 15 min, concentration; 800 μg mL-1 temperature; 25 °C), which was in accord with Toth isotherm. Fractal-like pseudo-second-order kinetics was found reasonably fast, with 66 % adsorption in 5 min. Solid phase extraction coupled Flame atomic absorption spectrometry method provides selective recognition towards Cd(II), with limit of detection; 1.13 µg/L, limit of quantification; 3.21 µg/L after preconcentration (preconcentration factor; 50) and good robustness. The developed method was applied for Cd(II) determination in food (tea, coffee, bread, tobacco, radish, spinach), water and wastewater (>99 % removal as well). Cd(II) loaded IIP was further utilized to remove anionic dyes with >95 % removal.
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Affiliation(s)
- Aminul Islam
- Analytical Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India.
| | - Saman Rais
- Analytical Research Laboratory, Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
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Hu Q, Lan R, He L, Liu H, Pei X. A critical review of adsorption isotherm models for aqueous contaminants: Curve characteristics, site energy distribution and common controversies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 329:117104. [PMID: 36603322 DOI: 10.1016/j.jenvman.2022.117104] [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: 08/21/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
The quantitative description of the equilibrium data by the isotherm models is an indispensable link in adsorption studies. The previous review papers focus on the underlying assumptions, fitting methods, error functions and practical applications of the isotherm models, usually ignoring their curve characteristics, selection criteria and common controversies. The main contents of this review include: (i) effect of the model parameters on the isotherm curves; (ii) determination of the site energy distribution; (iii) selection criteria of the isotherm models; and (iv) elimination of some common controversies. It is of great significance to reveal the curve characteristics for selecting a proper isotherm model. The site energy distribution is conducive to understanding the physicochemical properties of the adsorbent surface. The complete isotherm is recommended to be correlated with the experimental data. The model parameter qmax should be cautiously adopted for comparison of the adsorbent performance. The residual plot can be used to diagnose the fitting quality of the isotherm models further. This review also addresses some common mistakes and controversies and thereby avoids their propagation in future publications.
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Affiliation(s)
- Qili Hu
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, China; College of Ecology and E nvironment, Chengdu University of Technology, Chengdu, 610059, China.
| | - Rui Lan
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, China; College of Ecology and E nvironment, Chengdu University of Technology, Chengdu, 610059, China
| | - Liru He
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, China; College of Ecology and E nvironment, Chengdu University of Technology, Chengdu, 610059, China
| | - Hengyuan Liu
- College of Chemistry and Life Sciences, Chifeng University, Chifeng, 024000, China
| | - Xiangjun Pei
- State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu, 610059, China; College of Ecology and E nvironment, Chengdu University of Technology, Chengdu, 610059, China; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China.
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7
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Rama Mohan TV, Sridhar P, Selvam P. Experimental and modelling studies of carbon dioxide capture onto pristine, nitrogen-doped, and activated ordered mesoporous carbons. RSC Adv 2023; 13:973-989. [PMID: 36686921 PMCID: PMC9811986 DOI: 10.1039/d2ra07171a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
The search for suitable materials for carbon dioxide capture and storage has attracted the attention of the scientific community in view of the increased global CO2 levels and its after-effects. Among the different materials under research, porous carbons and their doped analogues are extensively debated for their ability to store carbon dioxide at high pressures. The present paper examined high-pressure carbon dioxide storage studies of 1-D hexagonal and 3-D cubic ordered mesoporous pristine and N-doped carbons prepared using the nano-casting method. Excess carbon dioxide sorption isotherms were obtained using the volumetric technique and were fitted using the Toth model. Various parameters that influence CO2 storage on metal-free ordered mesoporous carbons, such as the effect of pore size, pore dimension, pyrolysis temperature, the impact of nitrogen substitution, and the effect of ammonia activation are discussed. It was observed that the carbon dioxide storage capacity has an inverse relation to the total nitrogen doped, the amount of pyridinic nitrogen functionality, and the pyrolysis temperature, whereas the pore size seems to have a linear relationship. On the other hand, the presence of oxygen has a positive effect on the sorption capacity. Among the prepared ordered mesoporous carbons, the ammonia-treated one has shown the highest adsorption capacity of 37.8 mmol g-1 at 34 bar and 0 °C.
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Affiliation(s)
- Talla Venkata Rama Mohan
- National Centre for Catalysis Research and Department of Chemistry, Indian Institute of Technology-MadrasChennai 600 036India+91-44-2257-4235
| | - Palla Sridhar
- Department of Chemical Engineering, Indian Institute of Technology-MadrasChennai 600 036India
| | - Parasuraman Selvam
- National Centre for Catalysis Research and Department of Chemistry, Indian Institute of Technology-MadrasChennai 600 036India+91-44-2257-4235,International Research Organization for Advanced Science and Technology, Kumamoto University2-39-1 Kurokami, Chuo-kuKumamoto 860-8555Japan
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8
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A New Adsorption Equation for Nano-Porous Shale Rocks and Its Application in Pore Size Distribution Analysis. ENERGIES 2022. [DOI: 10.3390/en15093199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Adsorption equations are important to analyze the pore size distribution (PSD) of shale and the adsorption behavior on it. However, the accurate description of nitrogen adsorption on shale by current adsorption equations is difficult to achieve due to the heterogeneous pore structure of shale. In our study, new adsorption isotherms that can properly depict the adsorbed amount of nitrogen were built for shale rocks considering both the processes of nitrogen adsorption and the cylindrical pore shape property of shale. When performing a regression analysis on five sets of experimental adsorption data using the developed adsorption equations, the R-square ranged from 0.739 to 0.987. Based on the pore shape determined by adsorption–desorption curves, the distinct R-square indicated that our equation is not valid for shale samples with ink-bottle pores and pores formed by schistose materials, but that it is suitable for shale samples with cylindrical pores and slit pores. Meanwhile, we precisely analyzed the PSDs of shale rocks based on the developed adsorption equations as capillary condensation volume is involved in the total adsorbed amount. Thus, the PSDs of shale rocks with cylindrical pore and slit pore were analyzed by the new adsorption equation.
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Mozaffari Majd M, Kordzadeh-Kermani V, Ghalandari V, Askari A, Sillanpää M. Adsorption isotherm models: A comprehensive and systematic review (2010-2020). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 812:151334. [PMID: 34748826 DOI: 10.1016/j.scitotenv.2021.151334] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 06/13/2023]
Abstract
Among numerous methods developed in purification and separation industries, the adsorption process has received considerable attention due to its inexpensive, facile, and eco-friendly nature. The importance of the adsorption process causes extraordinary endeavors for modeling the adsorption isotherms during the years; thus, myriads of research have been conducted and many reviews have been published. In this paper, we have attempted to gather the most widely used adsorption isotherms and their related definitions, along with examples of correlated work of the recent decade. In the present review, 37 adsorption isotherms with about 400 references have been collected from the research published in the period of 2010-2020. The adsorption isotherms utilized are alphabetically organized for ease of access. The parameters of each isotherm, as well as the applicable definitions, are presented in the table, in addition to being discussed in the text. Another table is provided for the practical use of researchers, featuring the usage of the related isotherms in peer-reviewed studies.
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Affiliation(s)
- Mahdieh Mozaffari Majd
- Kerman Momtazan Cement Company, 32(nd) km Kerman-Tehran Highway, 7637158135, Kerman, Iran
| | - Vahid Kordzadeh-Kermani
- Department of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran 16846-13114, Iran
| | - Vahab Ghalandari
- Kerman Momtazan Cement Company, 32(nd) km Kerman-Tehran Highway, 7637158135, Kerman, Iran
| | - Anis Askari
- Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Mika Sillanpää
- Faculty of Science and Technology, School of Applied Physics, University Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia; School of Chemistry, Shoolini University, Solan, Himachal Pradesh 173229, India; Department of Biological and Chemical Engineering, Aarhus University, Nørrebrogade 44, 8000 Aarhus C, Denmark.
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10
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Bevilacqua RC, Preigschadt IA, Netto MS, Georgin J, Franco DSP, Mallmann ES, Silva LFO, Pinto D, Foletto EL, Dotto GL. One step acid modification of the residual bark from Campomanesia guazumifolia using H 2SO 4 and application in the removal of 2,4-dichlorophenoxyacetic from aqueous solution. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2021; 56:995-1006. [PMID: 34727841 DOI: 10.1080/03601234.2021.1997283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The residual bark of the tree species Campomanesia guazumifolia was successfully modified with H2SO4 and applied to remove the toxic herbicide 2.4-dichlorophenoxyacetic (2.4-D) from aqueous solutions. The characterization techniques made it possible to observe that the material maintained its amorphous structure; however, a new FTIR band emerged, indicating the interaction of the lignocellulosic matrix with sulfuric acid. Micrographs showed that the material maintained its irregular shape; however, new spaces and cavities appeared after the acidic modification. Regardless of the herbicide concentration, the system tended to equilibrium after 120 min. Using the best statistical coefficients, the Elovich model was the one that best fitted the kinetic data. The temperature increase in the system negatively influenced the adsorption of 2.4-D, reaching a maximum capacity of 312.81 mg g-1 at 298 K. The equilibrium curves showed a better fit to the Tóth model. Thermodynamic parameters confirmed the exothermic nature of the system (ΔH0 = -59.86 kJ mol-1). As a residue obtained from urban pruning, the bark of Campomanesia guazumifolia treated with sulfuric acid is a promising and highly efficient alternative for removing the widely used and toxic 2.4-D herbicide from aqueous solutions.
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Affiliation(s)
- Raíssa C Bevilacqua
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Isadora A Preigschadt
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Matias S Netto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Jordana Georgin
- Graduate Program in Civil Engineering, Federal University of Santa Maria, Santa Maria, Brazil
| | - Dison S P Franco
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Evandro S Mallmann
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Luis F O Silva
- Department of Civil and Environmental Engineering, Universidad de La Costa, Barranquilla, Colombia
- Universidad de Lima, Lima, Peru
| | - Diana Pinto
- Department of Civil and Environmental Engineering, Universidad de La Costa, Barranquilla, Colombia
| | - Edson L Foletto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
| | - Guilherme L Dotto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, Brazil
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11
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Muttakin M, Pal A, Rupa MJ, Ito K, Saha BB. A critical overview of adsorption kinetics for cooling and refrigeration systems. Adv Colloid Interface Sci 2021; 294:102468. [PMID: 34198212 DOI: 10.1016/j.cis.2021.102468] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 11/15/2022]
Abstract
The dynamic uptake of adsorbate onto the porous adsorbent plays a crucial role in determining the performance of the adsorption-based cooling system. Therefore, it is imperative to know the kinetics parameters of an adsorbate - adsorbent pair to design a system to be operated at variable working conditions. The kinetics models of adsorption, used to simulate the adsorption rate of different pairs, are derived and presented in this paper. Besides, the limitations and advantages of the models are also mentioned. Moreover, the dynamic performance of different adsorption pairs is analyzed, and the values of kinetics parameters, determined through experimental procedures and fitting of kinetics models, are also summarized. It is opined that during the initial unsaturated condition of adsorption, the semi-infinite model can be preferred to determine the diffusion time constant. The modification of different models, e.g., Langmuir and linear driving force models, can significantly overcome the drawbacks of the models, as shown by several researchers. However, research may be carried out to investigate different models' fitting errors from a statistical perspective. Furthermore, to evaluate the dynamic performance of different adsorbates, a lot of research needs to be done, specifically, on the adsorption of the newly developed environment-friendly refrigerants, onto the promising composite adsorbents possessing high thermal conductivity and significantly improved adsorption uptakes.
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Affiliation(s)
- Mahbubul Muttakin
- Department of Mechanical and Production Engineering, Ahsanullah University of Science and Technology, Tejgaon, Dhaka 1208, Bangladesh.
| | - Animesh Pal
- Department of Nuclear Engineering, University of Dhaka, Dhaka 1000, Bangladesh.
| | - Mahua Jahan Rupa
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Mechanical Engineering Department, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazuhide Ito
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga-koen 6-1, Kasuga-shi, Fukuoka 816-8580, Japan
| | - Bidyut Baran Saha
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Mechanical Engineering Department, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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12
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Ajiboye TO, Oyewo OA, Onwudiwe DC. Simultaneous removal of organics and heavy metals from industrial wastewater: A review. CHEMOSPHERE 2021; 262:128379. [PMID: 33182079 DOI: 10.1016/j.chemosphere.2020.128379] [Citation(s) in RCA: 121] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 09/12/2020] [Accepted: 09/15/2020] [Indexed: 05/27/2023]
Abstract
The co-existence of heavy metals and organics in industrial effluents is a prevalent problem. These pollutants usually have dissimilar compositions and properties, making their complete removal very tedious even with the use of conventional methods. In some cases, organics and heavy metals usually exist in a mixed matrix in industrial wastes. This poses harmful health risks to humans, aquatic lives and the entire ecosystem, because majority of these mixed pollutants amass in water in concentrations which are more than the permissible discharge limits in the environment. Therefore, it is necessary to remove these pollutants in order to prevent them from contaminating both the surface and ground water. Although, the removal of organic compounds and heavy metals (such as Hg, Pb, Cd, As and Cr) could be easily achieved individually, however, these pollutants exist together in many industrial effluents and even in surface waters. Hence the complete removal of these pollutants concurrently in a polluted system is the focus of this study. Several technologies have been used for the simultaneous removal of organics and heavy metal pollutants from water, which includes adsorption, ion exchange, photocatalysis, and coagulation. The success of these techniques depends on the water matrices and the choice of water treatment media such as adsorbents, resins, photocatalysts, and coagulants. The advantages and limitations of these technologies together with their respective mathematical modelling is critically examined in this review. Finally, the effect of joint existence of organic pollutants and heavy metals on the removal efficiency were examined in addition to the mathematical models that discusses the mechanisms of their combine elimination.
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Affiliation(s)
- Timothy O Ajiboye
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho, 2735, South Africa; Department of Chemistry, School of Physical and chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
| | - Opeyemi A Oyewo
- Department of Chemical, Metallurgical and Materials Engineering, Tshwane University of Technology, Pretoria, 0001, South Africa
| | - Damian C Onwudiwe
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho, 2735, South Africa; Department of Chemistry, School of Physical and chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa.
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Ngigi AN, Ok YS, Thiele-Bruhn S. Biochar-mediated sorption of antibiotics in pig manure. JOURNAL OF HAZARDOUS MATERIALS 2019; 364:663-670. [PMID: 30396139 DOI: 10.1016/j.jhazmat.2018.10.045] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/26/2018] [Accepted: 10/15/2018] [Indexed: 05/12/2023]
Abstract
Using manure contaminated with antibiotics as fertilizer is a primary source of soil pollution with antibiotics and concomitantly with antibiotic resistance genes (ARG). Bioavailable antibiotics trigger further ARG amplification during manure storage. Consequently it is aimed to facilitate the immobilization of antibiotics in manure. To this end, five biochars derived from pine cone (BCP), rice husk, sewage sludge, digestate and Miscanthus were tested as additional sorbents in liquid pig manure for sulfamethazine, ciprofloxacin, oxytetracycline and florfenicol. Non-linear sorption was best-fit using the Freundlich isotherm (R2 > 0.82) and the pseudo-second-order model best described sorption kinetics (R2 > 0.94). Antibiotics' sorption onto manure increased in the order sulfamethazine < florfenicol < ciprofloxacin < oxytetracycline. Admixtures of BCP to manure changed the order to sulfamethazine < oxytetracycline < florfenicol = ciprofloxacin. Generally, with the addition of biochar, sorption coefficients of florfenicol increased most (by factors>2.7) followed by sulfamethazine and ciprofloxacin. Yet, oxytetracycline was mostly mobilized probably due to competitive adsorption. Effects depended on the proportion of biochar added and the type of biochar, whereby plant-derived biochar exhibited better immobilization of antibiotics. Depending on the type and portion of biochar, admixtures to manure can be used to lower the mobility and hence bioavailability of fenicols, fluoroquinolones and sulfonamides.
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Affiliation(s)
- A N Ngigi
- Soil Science, University of Trier, Trier, Germany
| | - Y S Ok
- Korea Biochar Research Center, Division of Environmental Science and Ecological Engineering, Korea University, Seoul, Republic of Korea
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14
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Hajilari M, Shariati A, Khosravi-Nikou M. Equilibrium and Dynamic Adsorption of Bioethanol on Activated Carbon in the Liquid Phase. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201800219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Meysam Hajilari
- Petroleum University of Technology; Ahvaz Faculty of Petroleum; Gas Engineering Department; 63431 Ahvaz Iran
| | - Ahmad Shariati
- Petroleum University of Technology; Ahvaz Faculty of Petroleum; Gas Engineering Department; 63431 Ahvaz Iran
| | - Mohammadreza Khosravi-Nikou
- Petroleum University of Technology; Ahvaz Faculty of Petroleum; Gas Engineering Department; 63431 Ahvaz Iran
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15
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Xu MM, Kong XJ, He T, Wu XQ, Xie LH, Li JR. Reaction duration-dependent formation of two Cu(ii)-MOFs with selective adsorption properties of C3H4 over C3H6. Dalton Trans 2019; 48:9225-9233. [DOI: 10.1039/c9dt01677e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Reaction duration was found to play an important role in the formation of two different MOFs, BUT-301 and BUT-302, which all show three-dimensional framework structures, permanent porosity and selective adsorption properties of C3H4 over C3H6.
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Affiliation(s)
- Ming-Ming Xu
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Xiang-Jing Kong
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Tao He
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Xue-Qian Wu
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Lin-Hua Xie
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
| | - Jian-Rong Li
- Beijing Key Laboratory for Green Catalysis and Separation and Department of Chemistry and Chemical Engineering
- College of Environmental and Energy Engineering
- Beijing University of Technology
- Beijing 100124
- P. R. China
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16
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A Zn(II)-based pillar-layered metal–organic framework: Synthesis, structure, and CO2 selective adsorption. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.10.067] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Muckley ES, Collins L, Ievlev AV, Ye X, Kisslinger K, Sumpter BG, Lavrik NV, Nam CY, Ivanov IN. Light-Activated Hybrid Nanocomposite Film for Water and Oxygen Sensing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31745-31754. [PMID: 30111086 DOI: 10.1021/acsami.8b08072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Oxygen and water vapor sensing properties are investigated in metal-oxide-hybrid polymer nanocomposite thin films generated by infiltration synthesis, which incorporates molecular ZnO into the matrix of SU-8 polymer, a common negative-tone photoresist. The hybrid thin films display 20-fold higher gravimetric responses to oxygen and water vapor than those of control ZnO thin films in the dark. An additional 50-500% enhanced responses are detected under UV irradiation. The overall enhanced gravimetric response in the hybrid film is attributed to the ZnO molecules distributed in the polymer matrix, whereas the UV enhancement is explained by the light-induced, reversible generation of hydrophilic fluoroantimonic acid from triarylsulfonium hexafluoroantimonate photoacids, which leads to the increased surface potential and adsorption energies for oxygen and water. A gravimetric sensor based on a series of ZnO-infiltrated SU-8 films under UV excitation enables 96% accurate classification of water and oxygen environment with sub 10 mTorr detection limits. The results demonstrate UV-induced fully reversible surface hydrophilicity of ZnO/SU-8 hybrid nanocomposites.
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Affiliation(s)
- Eric S Muckley
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Liam Collins
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Anton V Ievlev
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Xinyi Ye
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York 11973 , United States
| | - Kim Kisslinger
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York 11973 , United States
| | - Bobby G Sumpter
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Nickolay V Lavrik
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
| | - Chang-Yong Nam
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York 11973 , United States
| | - Ilia N Ivanov
- Center for Nanophase Materials Sciences , Oak Ridge National Laboratory , P.O. Box 2008, Oak Ridge , Tennessee 37831-6496 , United States
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Armstrong MR, Shan B, Cheng Z, Wang D, Liu J, Mu B. Adsorption and diffusion of carbon dioxide on the metal-organic framework CuBTB. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.03.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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19
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Benzaoui T, Selatnia A, Djabali D. Adsorption of copper (II) ions from aqueous solution using bottom ash of expired drugs incineration. ADSORPT SCI TECHNOL 2017. [DOI: 10.1177/0263617416685099] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The use of bottom ash of expired drugs incineration for removal of Cu(II) ions from aqueous solution has been investigated. Analytical techniques have been employed to find characteristics of adsorbent materials. The removal of Cu(II) was conducted in batch system, and the effects of pH, adsorbent dosage, initial concentrations of copper ions, and contact time on adsorption efficiency were studied. Optimum adsorption was achieved at a pH 5 and equilibrium was established within 15 min of the process. The equilibrium adsorption data were analyzed using eight adsorption isotherm models: Langmuir, Freundlich, Temkin, Redlich–Peterson, Dubinin–Radushkevich, Toth, Harkin–Jura and Halsey isotherms. The energy value obtained by application of Dubinin–Radushkevich model was 2.593 kJ/mol indicating that physisorption was the dominant mechanism of sorption. The values of the correlation coefficient (R2) of the isotherms gave the best fit (>0.99) with the Langmuir, Toth, and Redlich–Peterson isotherms. The adsorption capacity (qm) from the Langmuir isotherm for Cu(II) was found as 13.335 mg/g. The equation constant n of Toth isotherm model is found to be close to 1 (0.945), confirming that the adsorbent studied presents homogeneous surface under conditions used. It is concluded that bottom ash of expired drugs incineration can be used as an effective adsorbent for removing Cu(II) from aqueous solution.
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Affiliation(s)
- Thouria Benzaoui
- Ecole Normale Supérieure de Kouba, Algeria; Ecole Préparatoire Sciences Techniques, Algeria
| | - Ammar Selatnia
- Ecole Normale Supérieure de Kouba, Algeria; Ecole Supérieure Polytechnique, Algeria
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20
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Yu T, Liang S, Li H. Study on the Sorption of Eu(III) onto Natural Red Earth and its Solid Components by Linear and Non-Linear Methods. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Tao Yu
- State Key Laboratory Breeding Base of Nuclear Resources and Environment; East China University of Technology; Nanchang 330013 China
- School of Nuclear Science and Engineering; East China University of Technology; Nanchang 330013 China
| | - Shimin Liang
- School of Nuclear Science and Engineering; East China University of Technology; Nanchang 330013 China
| | - Hong Li
- School of Nuclear Science and Engineering; East China University of Technology; Nanchang 330013 China
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21
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Study on Shale Adsorption Equation Based on Monolayer Adsorption, Multilayer Adsorption, and Capillary Condensation. J CHEM-NY 2017. [DOI: 10.1155/2017/1496463] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Shale gas is an effective gas resource all over the world. The evaluation of pore structure plays a critical role in exploring shale gas efficiently. Nitrogen adsorption experiment is one of the significant approaches to analyze pore size structure of shale. Shale is extremely heterogeneous due to component diversity and structure complexity. Therefore, adsorption isotherms for homogeneous adsorbents and empirical isotherms may not apply to shale. The shape of adsorption-desorption curve indicates that nitrogen adsorption on shale includes monolayer adsorption, multilayer adsorption, and capillary condensation. Usually, Langmuir isotherm is a monolayer adsorption model for ideal interfaces; BET (Brunauer, Emmett, Teller) adsorption isotherm is a multilayer adsorption model based on specific assumptions; Freundlich isotherm is an empirical equation widely applied in liquid phase adsorption. In this study, a new nitrogen adsorption isotherm is applied to simultaneously depict monolayer adsorption, multilayer adsorption, and capillary condensation, which provides more real and accurate representation of nitrogen adsorption on shale. In addition, parameters are discussed in relation to heat of adsorption which is relevant to the shape of the adsorption isotherm curve. The curve fitting results indicate that our new nitrogen adsorption isotherm can appropriately describe the whole process of nitrogen adsorption on shale.
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22
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Kim HS, Lee S, Kim DK, Lee YW, Yoo WC. Role of porosity and polarity of nanoporous carbon spheres in adsorption applications. RSC Adv 2017. [DOI: 10.1039/c7ra09360h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structure-properties (i.e., porosity and polarity) of carbons are judiciously considered for the specific adsorption applications.
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Affiliation(s)
- Hee Soo Kim
- Department of Applied Chemistry
- Hanyang University
- Ansan 15588
- Republic of Korea
| | - Seunghun Lee
- Department of Applied Chemistry
- Hanyang University
- Ansan 15588
- Republic of Korea
| | - Dong Kwan Kim
- Department of Applied Chemistry
- Hanyang University
- Ansan 15588
- Republic of Korea
| | - Yong-Woo Lee
- Department of Applied Chemistry
- Hanyang University
- Ansan 15588
- Republic of Korea
- Department of Chemical and Molecular Engineering
| | - Won Cheol Yoo
- Department of Applied Chemistry
- Hanyang University
- Ansan 15588
- Republic of Korea
- Department of Chemical and Molecular Engineering
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23
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Terzyk AP. Adsorption of Biologically Active Compounds from Aqueous Solutions on to Commercial Unmodified Activated Carbons. Part VI. The Mechanism of the Physical and Chemical Adsorption of Acetanilide. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/0263617041514910] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Artur P. Terzyk
- Physicochemistry of Carbon Materials Research Group, Department of Chemistry, Nicolaus Copernicus University, Gagarin Street 7, 87-100 Toruń, Poland
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24
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Wang Z, Li Y, Guo P, Meng W. Analyzing the Adaption of Different Adsorption Models for Describing the Shale Gas Adsorption Law. Chem Eng Technol 2016. [DOI: 10.1002/ceat.201500617] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Synthesis of surface molecularly imprinting polymers for cordycepin and its application in separating cordycepin. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.01.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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26
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Iakovleva E, Sillanpää M. The use of low-cost adsorbents for wastewater purification in mining industries. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2013; 20:7878-7899. [PMID: 23436121 DOI: 10.1007/s11356-013-1546-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 02/03/2013] [Indexed: 06/01/2023]
Abstract
Recently, great attention has been paid to the environmental problems in mining industry. At present there are different ways of mineral processing, as well as various methods of wastewater treatment, most of them are expensive. Work is ongoing to find low-cost treatments. In this article, low-cost adsorbents, potentially useful for wastewater treatment on mining and metallurgical plants, are reviewed; their characteristics, advantages, and disadvantages of their application are compared. Also adsorption of different metals and radioactive compounds from acidic environment similar to composition of mining and metallurgical wastewaters is considered.
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Affiliation(s)
- Evgenia Iakovleva
- Laboratory of Green Chemistry, Department of Energy and Environmental Technology, The Faculty of Technology, Lappeenranta University of Technology, Sammonkatu 12, 50130, Mikkeli, Finland,
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Xie LH, Suh MP. High CO2-Capture Ability of a Porous Organic Polymer Bifunctionalized with Carboxy and Triazole Groups. Chemistry 2013; 19:11590-7. [DOI: 10.1002/chem.201301822] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Indexed: 11/09/2022]
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28
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Kinetic and thermodynamic study of Eu(III) sorption on natural red earth in South China. KOREAN J CHEM ENG 2012. [DOI: 10.1007/s11814-012-0130-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Zhang X, Kah M, Jonker MTO, Hofmann T. Dispersion state and humic acids concentration-dependent sorption of pyrene to carbon nanotubes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:7166-7173. [PMID: 22656042 DOI: 10.1021/es300645m] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Sonication and humic acids (HA) are known to disperse carbon nanotube (CNT) suspensions, but potential effects on sorption of chemicals to CNTs remain poorly understood. We applied a passive sampling method to investigate the influence of dispersion/aggregation on sorption of pyrene to CNTs. Sonication broke down CNT aggregates and increased pyrene sorption affinity by up to 1.39 orders of magnitude. Sorption surfaces newly exposed by sonication remained available to pyrene even after reaggregation occurred, suggesting an irreversible effect of sonication. The presence of HA decreased sorption of pyrene to CNTs, but at the highest HA concentration investigated (200 mg/L), sorption affinity was still 1.90 orders of magnitude larger than sorption of pyrene to HA alone. Specific interactions between pyrene and CNTs were thus still taking place, in spite of the presence of a HA coating on the CNTs' surface. A greater suppression of sorption by CNTs occurred when the HA addition was combined with a sonication pretreatment. Sorption isotherm fitting indicated that the maximum sorption capacity, sorption affinity, and heterogeneity of the CNT surface were all affected by sonication and the presence of HA at a concentration as low as 1 mg/L. The present results contribute to an improved understanding of the sorption behavior of CNTs in both natural and wastewater systems.
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Affiliation(s)
- Xiaoran Zhang
- Department of Environmental Geosciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria
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Terzyk AP, Gauden PA, Zieliński W, Furmaniak S, Wesołowski RP, Klimek KK. First Molecular Dynamics simulation insight into the mechanism of organics adsorption from aqueous solutions on microporous carbons. Chem Phys Lett 2011. [DOI: 10.1016/j.cplett.2011.08.093] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Garbacz JK, Furmaniak S, Terzyk AP, Grabiec M. New model describing adsorption from liquid binary mixtures of nonelectrolytes with limited and unlimited miscibility of components. J Colloid Interface Sci 2011; 359:512-9. [DOI: 10.1016/j.jcis.2011.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 03/30/2011] [Accepted: 04/07/2011] [Indexed: 10/18/2022]
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Réguer A, Sochard S, Hort C, Platel V. Measurement and modelling of adsorption equilibrium, adsorption kinetics and breakthrough curve of toluene at very low concentrations on to activated carbon. ENVIRONMENTAL TECHNOLOGY 2011; 32:757-766. [PMID: 21879551 DOI: 10.1080/09593330.2010.512297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Indoor air pollution, characterized by many pollutants at very low concentrations, is nowadays known as a worrying problem for human health. Among physical treatments, adsorption is a widely used process, since porous materials offer high capacity for volatile organic chemicals. However, there are few studies in the literature that deal with adsorption as an indoor air pollution treatment. The aim of this study was to investigate the adsorption of toluene on to activated carbon at characteristic indoor air concentrations. Firstly, global kinetic parameters were determined by fitting Thomas's model to experimental data obtained with batch experiments. Then, these kinetic parameters led to the determination of Henry's coefficient, which was checked with experimental data of the adsorption isotherm. Secondly, we simulated a breakthrough curve made at an inlet concentration 10 times higher than the indoor air level. Even if the kinetic parameters in this experiment are different from those in batch experiments, it can be emphasized that the Henry coefficient stays the same.
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Affiliation(s)
- Anne Réguer
- Laboratoire de Thermique, Energétique et Procédés, Université de Pau et des Pays de l'Adour, Quartier Bastillac, 65000 Tarbes, France.
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Sochard S, Fernandes N, Reneaume JM. Modeling of adsorption isotherm of a binary mixture with real adsorbed solution theory and nonrandom two-liquid model. AIChE J 2010. [DOI: 10.1002/aic.12220] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Malusis MA, Maneval JE, Barben EJ, Shackelford CD, Daniels ER. Influence of adsorption on phenol transport through soil-bentonite vertical barriers amended with activated carbon. JOURNAL OF CONTAMINANT HYDROLOGY 2010; 116:58-72. [PMID: 20609493 DOI: 10.1016/j.jconhyd.2010.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Revised: 05/29/2010] [Accepted: 06/01/2010] [Indexed: 05/29/2023]
Abstract
The potential for enhanced containment of phenol by soil-bentonite (SB) vertical barriers amended with activated carbon (AC) was investigated. Results of batch equilibrium adsorption tests on model SB backfills amended with 0-10 wt.% granular AC (GAC) or powdered AC (PAC) illustrate that the backfills exhibited nonlinear adsorption behavior that was described well by both the Freundlich and Tóth adsorption models. The AC amended backfills exhibited enhanced phenol adsorption relative to unamended backfill due to hydrophobic partitioning to the AC. Adsorption capacity increased with increasing AC content but was insensitive to AC type (GAC versus PAC). Results of numerical transport simulations based on the measured adsorption behavior show that the Tóth model yielded similar or lower phenol breakthrough times than the Freundlich model for the range of source concentrations (C(o)) considered in the simulations (0.1-10 mg/L). Breakthrough time decreased with increasing C(o) but increased with increasing AC content. Predicted breakthrough times for an SB vertical barrier amended with 2-10 wt.% AC increased by several orders of magnitude relative to the theoretical case of a nonreactive (non-adsorbing) barrier. The findings suggest that AC may be a highly effective adsorption amendment for sustaining the containment performance of SB vertical barriers.
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Affiliation(s)
- Michael A Malusis
- Department of Civil and Environmental Engineering, Bucknell University, Lewisburg, PA 17837, USA.
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35
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Furmaniak S, Gauden PA, Terzyk AP, Rychlicki G. Water adsorption on carbons--critical review of the most popular analytical approaches. Adv Colloid Interface Sci 2008; 137:82-143. [PMID: 17919444 DOI: 10.1016/j.cis.2007.08.001] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2007] [Revised: 08/14/2007] [Accepted: 08/15/2007] [Indexed: 11/29/2022]
Abstract
The purpose of the current study is to present the state of art in the field of analytical description of water sorption on carbons. We discuss the most important and promising models proposed recently (for example by Mahle; Talu and Meunier; and Malakhov and Volkov) as well as some older theoretical models inspired by the pioneering ideas proposed in the papers of Dubinin, Serpinsky, Barton, D'Arcy, Watt, Do and Do and others. The applicability, advantages, and defects of all these analytical formulas are pointed out and some new approaches in this field are presented. The special attention is paid to the finite adsorption space and the possible involvement of partial chemisorption, i.e. the existence of various types of the hydrophilic centres. Since the calculation of isosteric enthalpy from an adsorption equation, and the comparison of theoretical enthalpy plot with the values measured calorimetrically, is the fundamental condition for the verification of the correctness of an adsorption model, for all considered models we show the corresponding adsorption enthalpy equations. The validity of all mentioned above models is verified for the data measured for five water-activated carbon systems. Finally, a summary of obtained results and some perspectives and suggestions for the description of experimental data are presented. From the analysis of experimental data it is seen that developed recently- the heterogeneous Do and Do model is probably the most successful for the simultaneous description of water adsorption and enthalpy of adsorption results.
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Affiliation(s)
- Sylwester Furmaniak
- N. Copernicus University, Department of Chemistry, Physicochemistry of Carbon Materials Research Group, Gagarin St 7, 87-100 Toruń, Poland
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Pikaar I, Koelmans AA, van Noort PCM. Sorption of organic compounds to activated carbons. Evaluation of isotherm models. CHEMOSPHERE 2006; 65:2343-51. [PMID: 16782170 DOI: 10.1016/j.chemosphere.2006.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2006] [Revised: 05/01/2006] [Accepted: 05/02/2006] [Indexed: 05/10/2023]
Abstract
Sorption to "hard carbon" (black carbon, coal, kerogen) in soils and sediments is of major importance for risk assessment of organic pollutants. We argue that activated carbon (AC) may be considered a model sorbent for hard carbon. Here, we evaluate six sorption models on a literature dataset for sorption of 12 compounds onto 12 ACs and one charcoal, at different temperatures (79 isotherms in total). A statistical analysis, accounting for differences in the number of fitting parameters, demonstrates that the dual Langmuir equation is in general superior and/or preferable to the single and triple Langmuir equation, the Freundlich equation, a Polanyi-Dubinin-Manes equation, and the Toth equation. Consequently, the analysis suggests the presence of two types of adsorption sites: a high-energy (HE) type of site and a low-energy (LE) type of site. Maximum adsorption capacities for the HE domain decreased with temperature while those for the LE domain increased. Average Gibbs free energies for adsorption from the hypothetical pure liquid state at 298 K were fairly constant at -15+/-4 and -5+/-4 kJ mol(-1) for the HE and LE domain, respectively.
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Affiliation(s)
- Ilje Pikaar
- Aquatic Ecology and Water Quality Management Group (AEW), Wageningen University, P.O. Box 8080, 6700 DD Wageningen, The Netherlands
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Furmaniak S, Gauden PA, Terzyk AP, Rychlicki G, Wesołowski RP, Kowalczyk P. Heterogeneous Do–Do model of water adsorption on carbons. J Colloid Interface Sci 2005; 290:1-13. [PMID: 16102779 DOI: 10.1016/j.jcis.2005.07.043] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2005] [Revised: 07/19/2005] [Accepted: 07/20/2005] [Indexed: 11/19/2022]
Abstract
The model of water adsorption on carbons proposed five years ago by Do and Do is analyzed and improved. Following the experimental evidence that for activated carbons surface active groups differ in the value of the energy of interaction with water molecules, we propose to extend the original model to take this fundamental feature into account. For the original DD model, as well as proposed new heterogeneous one (HDDM), we develop also the corresponding isosteric enthalpy of adsorption formulas. The features of the HDDM are studied via simulations. It is shown that the new model predicts the shapes of adsorption isotherm as well as corresponding enthalpy observed for real experimental systems. Finally, the HDDM is successfully applied to description of arbitrarily chosen adsorption and enthalpy of adsorption data. Up to our knowledge, HDDM is the first model describing satisfactorily water adsorption isotherms and corresponding enthalpy data measured on different microporous activated carbons in the whole relative pressure range.
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Affiliation(s)
- Sylwester Furmaniak
- Physicochemistry of Carbon Materials Research Group, Department of Chemistry, N. Copernicus University, Gagarin St. 7, 87-100 Toruń, Poland
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Gauden PA. Does the Dubinin–Serpinsky theory adequately describe water adsorption on adsorbents with high-energy centers? J Colloid Interface Sci 2005; 282:249-60. [PMID: 15589529 DOI: 10.1016/j.jcis.2004.08.091] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2004] [Accepted: 08/11/2004] [Indexed: 11/24/2022]
Abstract
The paper is an attempt to explain the mechanism of water adsorption on carbonaceous adsorbents with high-energy centers (surface or cation-exchange groups). The equations formulated previously by Dubinin et al. and Barton et al. are analyzed. Thus, four types of empirical factors defining the decrease in adsorption site concentration are taken into account. The isotherms of water adsorption measured on two microporous activated carbons containing various densities of hydrophilic sites are described by the above-mentioned theoretical isotherm equations. It is shown that none of these models provides an adequate description of the experimental data, especially at low relative pressures. This leads to the conclusion that with regard to the Dubinin and Serpinsky theory, the chemisorption of water at very high-energy adsorption sites needs to be taken into account. In view of the above, a new theoretical relationship is proposed which includes a correct description of the decreasing number of active sites. As a consequence, a good correlation between the new theoretical model and experimental data is observed over the whole range of relative pressures.
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Affiliation(s)
- Piotr A Gauden
- Physicochemistry of Carbon Materials Research Group, Department of Chemistry, N. Copernicus University, Gagarin St. 7, 87-100 Toruń, Poland.
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Terzyk AP. The effect of carbon surface chemical composition on the adsorption of acetanilide. J Colloid Interface Sci 2004; 272:59-75. [PMID: 14985023 DOI: 10.1016/j.jcis.2003.11.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2003] [Accepted: 11/06/2003] [Indexed: 11/24/2022]
Abstract
The study of acetanilide adsorption-desorption performed at three temperatures (300, 310, and 320 K) and at two pH levels (7.0 and 1.5) on the series of D43/1 carbons (initial and modified with HNO3, fuming H2SO4, and gaseous NH3) is reported. Sorption data are additionally supplemented with the results of thermal analysis and calorimetric and kinetic measurements. It is shown that, generally, acetanilide adsorption at the neutral pH level is reversible (only on the more acidic carbons and at the lowest temperature does hysteresis occur due to the formation of hydrogen bonds with surface OH groups), and it decreases for the chemically modified carbons. In contrast, at the acidic pH level acetanilide adsorption is irreversible. A mechanism of irreversibility is proposed and it is shown that hysteresis is caused by the chemical reaction between the nucleophile (carbon) and the protonized acetanilide molecules. For all studied carbons, at the acidic pH level, adsorption increases and this is caused by the weakly basic character of acetanilide molecule. Adsorption results are described applying adsorbability and Dubinin-Astakhov, quasi-Freundlich and solution analogue of the Toth adsorption isotherm equations. Using the kinetic data, the effective diffusion coefficients and the energy of diffusion are calculated. It is shown that the diffusion is mainly a surface process, and the contribution of the pore diffusion increases with the rise in temperature. By applying different correlations between the parameters obtained from the theoretical description of experimental data and those characterizing the chemical composition of the studied carbons, the role of the latter in the adsorption and kinetics of acetanilide adsorption is determined.
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Affiliation(s)
- Artur P Terzyk
- Physicochemistry of Carbon Materials Research Group, Department of Chemistry, N. Copernicus University, Gagarin Street 7, 87-100 Toruń, Poland.
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