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Patil P, Jeppu G, Vallabha MS, Girish CR. Enhanced adsorption of phenolic compounds using biomass-derived high surface area activated carbon: Isotherms, kinetics and thermodynamics. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-32971-1. [PMID: 38578594 DOI: 10.1007/s11356-024-32971-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/14/2024] [Indexed: 04/06/2024]
Abstract
The progress of industrial and agricultural pursuits, along with the release of inadequately treated effluents especially phenolic pollutant, has amplified the pollution load on environment. These organic compounds pose considerable challenges in both drinking water and wastewater systems, given their toxicity, demanding high oxygen and limited biodegradability. Thus, developing an eco-friendly, low-cost and highly efficient adsorbent to treat the organic pollutants has become an important task. The present investigation highlights development of a novel adsorbent (CFPAC) by activation of Cassia fistula pod shell for the purpose of removing phenol and 2,4-dichlorophnenol (2,4-DCP). The significant operational factors (dosage, pH, concentration, temperature, speed) were also investigated. The factors such as pH = 2 and T = 20°C were found to be significant at 1.6 g/L and 0.6 g/L dosage for phenol and 2,4-DCP respectively. Batch experiments were further conducted to study isotherms, kinetic and thermodynamics studies for the removal of phenol and 2,4-DCP. The activated carbon was characterised as mesoporous (specific surface area 1146 m2/g, pore volume = 0.8628 cc/g), amorphous and pHPZC = 6.4. At optimum conditions, the maximum sorption capacity for phenol and 2,4-DCP were 183.79 mg/g and 374.4 mg/g respectively. The adsorption isotherm was better conformed to Redlich Peterson isotherm (phenol) and Langmuir isotherm (2,4-DCP). The kinetic study obeyed pseudo-second-order type behaviour for both the pollutants with R2 > 0.999. The thermodynamic studies and the value of isosteric heat of adsorption for both the pollutants suggested that the adsorption reaction was dominated by physical adsorption (ΔHx < 80 kJ/mol). Further, the whole process was feasible, exothermic and spontaneous in nature. The overall studies suggested that the activated carbon synthesised from Cassia fistula pods can be a promising adsorbent for phenolic compounds.
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Affiliation(s)
- Praveengouda Patil
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | - Gautham Jeppu
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India
| | | | - Chikmagalur Raju Girish
- Department of Chemical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
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2
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Bhattacharya R. A review on production and application of activated carbon from discarded plastics in the context of 'waste treats waste'. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 325:116613. [PMID: 36327607 DOI: 10.1016/j.jenvman.2022.116613] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/18/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
In the post-COVID scenario, the annual increase in plastic waste has taken an upsurge due to the disposal of plastic masks, gloves and other protective equipment. To reduce the plastic load ending up in landfills and oceans or dumped at roadsides, the potential of using plastic polymers in different sectors has been investigated over the years leading to their potential application in pavement laying, concrete industry, fuel generation and production of carbon-based compounds among which activated carbons (AC) is a prime example. As one of the most recommended adsorbents for removing contaminants from water and adsorbing greenhouse gases, AC creates a potential sector for using discarded plastic to further treat pollutants and approach closer to a circular economy for plastics. This paper analyses the production process, the effect of production parameters on AC characteristics and properties that aid in adsorption. The interdependence of these factors determines the surface area, porosity, relative micropore and mesopore volume, thereby defining the utility for removing contaminant molecules of a particular size. Furthermore, this work discusses the application of AC along with a summary of the earlier works leading to the existing gaps in the research area. Production costs, formation of by-products including toxic substances and adsorbate selectivity are the major issues that have restricted the commercial application of this process towards its practical use. Research aimed at valorization of plastic waste into ACs would minimize the solid waste burden, along with treating other pollutants.
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Affiliation(s)
- Roumi Bhattacharya
- Research Scholar, Civil Engineering Department, Indian Institute of Engineering, Science and Technology, Shibpur, India.
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3
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Treatment of swine wastewater using multi-soil-layer based constructed wetland: Substrates assessment and efficiency improvement. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Lignite-Based N-Doped Porous Carbon as an Efficient Adsorbent for Phenol Adsorption. Processes (Basel) 2022. [DOI: 10.3390/pr10091746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The treatment of phenolic-containing wastewater has received increased attention in recent years. In this study, the N-doped porous carbons were prepared from lignite with tripolycyanamide as the N source, and their phenol adsorption behaviors were investigated. Results clearly showed that the addition of tripolycyanamide largely improved the surface area, micropore volume, N content and thus the phenol adsorption capacity of lignite-based carbons. The N-doped sample prepared at 700 °C showed a surface area of 1630 m2/g and a phenol adsorption capacity as high as 182.4 mg/g at 20 °C, which were 2.0 and 1.6 times that of the lignite-based carbon without N-doping. Pseudo-second order and Freundlich adsorption isotherm models could better explain the phenol adsorption behaviors over lignite-based N-doped porous carbon. Theoretical calculations demonstrated that phenol adsorption energies over graphitic-N (−72 kJ/mol) and pyrrolic-N (−74 kJ/mol) groups were slightly lower than that over the N-free graphite layer (−71 kJ/mol), supporting that these N-containing groups contribute to enhance the phenol adsorption capacity. The adsorption mechanism of phenol over porous carbon might be interpreted by the π–π dispersion interactions between aromatic-ring and carbon planes, which could be enhanced by N-doping through increasing π electron densities in the carbon plane.
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Wen Q, Chen H, Wei J, Chen Y, Ma D, Li J, Xie Y, Sun X, Shen J. Preparation of nitrogen-doped porous carbon by urea–formaldehyde resin for the construction of membrane adsorption reactor to remove refractory pollutant. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120105] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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6
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Choi J, Yang I, Kim SS, Cho SY, Lee S. Upcycling Plastic Waste into High Value-Added Carbonaceous Materials. Macromol Rapid Commun 2021; 43:e2100467. [PMID: 34643991 DOI: 10.1002/marc.202100467] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 10/05/2021] [Indexed: 01/24/2023]
Abstract
Even though plastic improved the human standard of living, handling the plastic waste represents an enormous challenge. It takes more than 100 years to decompose discarded or buried waste plastics. Microplastics are one of the causes of significantly pervasive environmental pollutants. The incineration of plastic waste generates toxic gases, underscoring the need for new approaches, in contrast to conventional strategies that are required for recycling plastic waste. Therefore, several studies have attempted to upcycle plastic waste into high value-added products. Converting plastic waste into carbonaceous materials is an excellent upcycling technique due to their diverse practical applications. This review summarizes various studies dealing with the upcycling of plastic waste into carbonaceous products. Further, this review discusses the applications of carbonaceous products synthesized from plastic waste including carbon fibers, absorbents for water purification, and electrodes for energy storage. Based on the findings, future directions for effective upcycling of plastic waste into carbonaceous materials are suggested.
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Affiliation(s)
- Jiho Choi
- Carbon Composite Materials Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea
| | - Inchan Yang
- Carbon Composite Materials Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea
| | - Sung-Soo Kim
- Carbon Composite Materials Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea
| | - Se Youn Cho
- Carbon Composite Materials Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea
| | - Sungho Lee
- Carbon Composite Materials Research Center, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk, 55324, Republic of Korea.,Department of Quantum System Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeonbuk, 54896, Republic of Korea
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7
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Verification of pore size effect on aqueous-phase adsorption kinetics: A case study of methylene blue. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127119] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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8
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Acesulfame K Photodegradation over Nitrogen-Doped TiO2. Catalysts 2021. [DOI: 10.3390/catal11101193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Acesulfame K is a zero-calorie alternative to sugar used worldwide. There is contradictory information on the toxicity of the compound, but its accumulation in the aquatic environment is undeniable. In this study, one-pot sol-gel synthesis was used to obtain nitrogen-doped TiO2 photocatalysts. Doping up to 6.29 wt % of nitrogen caused an increase in the surface area of the catalysts (48.55–58.23 m2∙g−1) and a reduction of the pHPZC value (5.72–5.05). Acesulfame K photodegradation was tested at the initial concentration of 20–100 ppm and the catalyst concentration at the level of 1 g∙L−1. Compared to the pure anatase, 4.83–6.29 wt % nitrogen-doped TiO2 showed an effective photodegradation of Acesulfame K. Ninety percent molecule removal was obtained after ~100 min, ~90 min, and ~80 min for initial concentrations of 20 ppm, 50 ppm, and 100 ppm, respectively. The increased activity of the catalysts is due to the modification of the TiO2 lattice structure and probably the limitation of the photogenerated electron/hole charge carrier recombination. It was shown that the electrostatic interactions between Acesulfame K and the catalyst surface play an important role in the photodegradation efficiency.
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Antibacterial Agents Adsorbed on Active Carbon: A New Approach for S. aureus and E. coli Pathogen Elimination. Pathogens 2021; 10:pathogens10081066. [PMID: 34451530 PMCID: PMC8401764 DOI: 10.3390/pathogens10081066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/13/2021] [Accepted: 08/20/2021] [Indexed: 01/21/2023] Open
Abstract
Antibiotic overuse and mass production have led to a global problem with the treatment of antibacterial infections. Thus, any possibility to limit the number of antibacterial drugs used will contribute to a decrease in the development of pathogenic bacterial resistance. In this study, the enhanced bacterial growth reduction of pharmaceutical activated carbon (PAC) material with adsorbed antimicrobial agents compared to the activity of pure antibacterial drugs was investigated. Sulfamethoxazole (SMZ) at a concentration of 1.1 mg/mL retained the growth of S. aureus and E. coli at 20.5% and 26.5%, respectively, whereas SMZ adsorbed on PAC increased the reduction of the tested bacteria in the range of 47-72%. The use of PAC with adsorbed gentamycin (G) over 24 h improved the effectiveness of E. coli growth reduction by 50% compared to the application of pure antibiotic (3.6 µg/mL). The increased reduction of S. aureus growth by 6% using G with PAC for a 24-h incubation time compared to the use of pure antibiotics at a concentration of 3.6 µg/mL was observed. The results provide proof-of-principle that the new approach of activated carbon with adsorbed antimicrobial agents could yield an attractive background with potential as a new starting material for S. aureus and E. coli pathogen elimination, e.g., in wound-healing treatment in the future.
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Liu X, Tu Y, Liu S, Liu K, Zhang L, Li G, Xu Z. Adsorption of ammonia nitrogen and phenol onto the lignite surface: An experimental and molecular dynamics simulation study. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125966. [PMID: 34492878 DOI: 10.1016/j.jhazmat.2021.125966] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/07/2021] [Accepted: 04/21/2021] [Indexed: 06/13/2023]
Abstract
Ammonia nitrogen and phenol are typical inorganic and organic pollutants in the coal chemical wastewater, respectively. In this study, the adsorption characteristics of ammonia nitrogen and phenol on lignite were investigated through experimental and molecular dynamics simulations. The results show that the adsorption of ammonia nitrogen was carried out via ion exchange, which was significantly faster than the adsorption of phenol driven by the π-π interaction. In the binary adsorption, the surface electronegativity of lignite decreased with the adsorption of ammonia nitrogen thereby promoting the adsorption of phenol. However, the extent of ammonia nitrogen adsorption was slightly reduced in the presence of phenol. Molecular dynamics simulation results indicated that the adsorption of phenol molecules on the lignite surface was closer than that of ammonium ion. The addition of ammonium ions could enhance the adsorption of phenol molecules on the lignite surface. The simulation results were well consistent with the experimental findings. This study indicates lignite has a promising potential in coal chemical wastewater adsorption pretreatment.
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Affiliation(s)
- Xiangyang Liu
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
| | - Yanan Tu
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China.
| | - Shucheng Liu
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
| | - Kailin Liu
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
| | - Lifeng Zhang
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
| | - Gaohui Li
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China
| | - Zhiqiang Xu
- School of Chemical and Environmental Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China.
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11
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Catizzone E, Sposato C, Romanelli A, Barisano D, Cornacchia G, Marsico L, Cozza D, Migliori M. Purification of Wastewater from Biomass-Derived Syngas Scrubber Using Biochar and Activated Carbons. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18084247. [PMID: 33923770 PMCID: PMC8073644 DOI: 10.3390/ijerph18084247] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/06/2021] [Accepted: 04/13/2021] [Indexed: 11/29/2022]
Abstract
Phenol is a major component in the scrubber wastewater used for syngas purification in biomass-based gasification plants. Adsorption is a common strategy for wastewater purification, and carbon materials, such as activated carbons and biochar, may be used for its remediation. In this work, we compare the adsorption behavior towards phenol of two biochar samples, produced by pyrolysis and gasification of lignocellulose biomass, with two commercial activated carbons. Obtained data were also used to assess the effect of textural properties (i.e., surface area) on phenol removal. Continuous tests in lab-scale columns were also carried out and the obtained data were processed with literature models in order to obtain design parameters for scale-up. Results clearly indicate the superiority of activated carbons due to the higher pore volume, although biomass-derived char may be more suitable from an economic and environmental point of view. The phenol adsorption capacity increases from about 65 m/g for gasification biochar to about 270 mg/g for the commercial activated carbon. Correspondingly, service time of commercial activated carbons was found to be about six times higher than that of gasification biochar. Finally, results indicate that phenol may be used as a model for characterizing the adsorption capacity of the investigated carbon materials, but in the case of real waste water the carbon usage rate should be considered at least 1.5 times higher than that calculated for phenol.
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Affiliation(s)
- Enrico Catizzone
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, Department of Energy Technologies and Renewable Sources, I-75026 Rotondella, Italy; (C.S.); (A.R.); (D.B.); (G.C.)
- Correspondence:
| | - Corradino Sposato
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, Department of Energy Technologies and Renewable Sources, I-75026 Rotondella, Italy; (C.S.); (A.R.); (D.B.); (G.C.)
| | - Assunta Romanelli
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, Department of Energy Technologies and Renewable Sources, I-75026 Rotondella, Italy; (C.S.); (A.R.); (D.B.); (G.C.)
| | - Donatella Barisano
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, Department of Energy Technologies and Renewable Sources, I-75026 Rotondella, Italy; (C.S.); (A.R.); (D.B.); (G.C.)
| | - Giacinto Cornacchia
- ENEA-Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Trisaia Research Center, Department of Energy Technologies and Renewable Sources, I-75026 Rotondella, Italy; (C.S.); (A.R.); (D.B.); (G.C.)
| | - Luigi Marsico
- Department of Environmental and Chemical Engineering, University of Calabria, via P. Bucci, 44a, I-87036 Rende, Italy; (L.M.); (D.C.); (M.M.)
| | - Daniela Cozza
- Department of Environmental and Chemical Engineering, University of Calabria, via P. Bucci, 44a, I-87036 Rende, Italy; (L.M.); (D.C.); (M.M.)
| | - Massimo Migliori
- Department of Environmental and Chemical Engineering, University of Calabria, via P. Bucci, 44a, I-87036 Rende, Italy; (L.M.); (D.C.); (M.M.)
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Liu Y, Li L, Duan Z, You Q, Liao G, Wang D. Chitosan modified nitrogen-doped porous carbon composite as a highly-efficient adsorbent for phenolic pollutants removal. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125728] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Chen S, Zhang B, Xia Y, Chen H, Chen G, Tang S. Influence of mixed alkali on the preparation of edible fungus substrate porous carbon material and its application for the removal of dye. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125675] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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14
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Kim JH, Choi YJ, Lee SE, Im JS, Lee KB, Bai BC. Acceleration of petroleum based mesophase pitch formation by PET (polyethylene terephthalate) additive. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.10.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Elgazzar AH, Ali MMS, El-Sayed AA, Saad EA. Preparation of various sorbents from agro waste to remove some radionuclides and organic species from aqueous solutions. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07476-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Activated Carbons and Their Evaluation in Electric Double Layer Capacitors. Molecules 2020; 25:molecules25184255. [PMID: 32947979 PMCID: PMC7571157 DOI: 10.3390/molecules25184255] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 09/11/2020] [Accepted: 09/12/2020] [Indexed: 11/25/2022] Open
Abstract
This review presents a summary of the manufacturing of activated carbons (ACs) as electrode materials for electric double layer capacitors. Commonly used techniques of open and closed porosity determination (gas adsorption, immersion calorimetry, X-ray and neutrons scattering) were briefly described. AC production methods (laboratory and industrial) were detailed presented with the stress on advantages and drawbacks of each ones in the field of electrode materials of supercapacitor. We discussed all general parameters of the activation process and their influence on the production efficiency and the porous structure of ACs. We showed that porosity development of ACs is not the only factor influencing capacity properties. The role of pore size distribution, raw material origin, final carbon structure ordering, particles morphology and purity must be also taken into account. The impact of surface chemistry of AC was considered not only in the context of pseudocapacity but also other important factors, such as inter-particle conductivity, maximal operating voltage window and long-term stability.
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Han W, Wang H, Xia K, Chen S, Yan P, Deng T, Zhu W. Superior nitrogen-doped activated carbon materials for water cleaning and energy storing prepared from renewable leather wastes. ENVIRONMENT INTERNATIONAL 2020; 142:105846. [PMID: 32585500 DOI: 10.1016/j.envint.2020.105846] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 05/10/2020] [Accepted: 05/10/2020] [Indexed: 06/11/2023]
Abstract
The fabrication of nitrogen-doped activated carbons (N-ACs) from leather solid wastes (LSW), a huge underutilized bioresource, by different activation methods was investigated. N-AC prepared by KOH activation (named KNAC) exhibited superior physical and chemical properties with much higher BET surface area (2247 m2 g-1) and more abundant hierarchical micropores than those activated by nano-CaCO3 (CNAC) or by direct carbonization (NNAC). KOH activation decreased the total nitrogen content in KNAC, but it increased the ratio of surface nitrogen species. KOH activation also significantly promoted the conversion of nitrogen species in the carbon material to pyridinic N. Potential applications of the prepared N-ACs were evaluated, and they were tested as adsorbents to remove phenols from water and as the anodes of lithium batteries. The high surface area, abundant micropores, and plentiful surface pyridinic N guaranteed KNAC a superior nitrogen-doped activated carbon that could serve as an excellent adsorbent to remove phenols (282 mg/g) from waste water as well as an outstanding electrode material with a high and stable charge/discharge capacity (533.54 mAh g-1 after 150th cycle). The strategy of LSW conversion to versatile N-ACs turns waste into treasure and could promote the sustainable development of our society.
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Affiliation(s)
- Wanying Han
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Hongliang Wang
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
| | - Kedong Xia
- School of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453000, China
| | - Shanshuai Chen
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Puxiang Yan
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Tiansheng Deng
- Shanxi Engineering Research Center of Biorefinery, Institute of Coal Chemistry, Chinese Academy of Sciences, 27 South Taoyuan Road, Taiyuan 030001, China
| | - Wanbin Zhu
- College of Biomass Sciences and Engineering/College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China.
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18
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Zhang L, Ding Y, Long B, Yao L, Yuan H, Dai Y. Hierarchical porous polymeric ionic liquids with excellent adsorption performance for phenolic compounds. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113440] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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19
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Słomkiewicz P, Szczepanik B, Czaplicka M. Adsorption of Phenol and Chlorophenols by HDTMA Modified Halloysite Nanotubes. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3309. [PMID: 32722297 PMCID: PMC7436260 DOI: 10.3390/ma13153309] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 12/17/2022]
Abstract
The adsorption of phenol, 2-, 3-, 4-chlorophenol, 2-, 4-dichlorophenol and 2-, 4-, 6-trichloro-phenol on halloysite nanotubes modified with hexadecyltrimethylammonium bromide (HDTMA/halloysite nanocomposite) was investigated in this work by inverse liquid chromatography methods. Morphological and structural changes of the HDTMA/halloysite nanocomposite were characterized by scanning and transmission electron microscopy (SEM, TEM), Fourier-transform infrared spectrometry (FT-IR) and the low-temperature nitrogen adsorption method. Specific surface energy heterogeneity profiles and acid base properties of halloysite and HDTMA/halloysite nanocomposite have been determined with the inverse gas chromatography method. Inverse liquid chromatography methods: the Peak Division and the Breakthrough Curves Methods were used in adsorption experiments to determine adsorption parameters. The obtained experimental adsorption data were well represented by the Langmuir multi-center adsorption model.
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Affiliation(s)
- Piotr Słomkiewicz
- Institute of Chemistry, Jan Kochanowski University, 7 Uniwersytecka, 25-406 Kielce, Poland;
| | - Beata Szczepanik
- Institute of Chemistry, Jan Kochanowski University, 7 Uniwersytecka, 25-406 Kielce, Poland;
| | - Marianna Czaplicka
- Institute of Environmental Engineering Polish Academy of Sciences, 34 M. Skłodowskiej-Curie St., 41-819 Zabrze, Poland;
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20
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Liu X, Wen Y, Chen X, Tang T, Mijowska E. Co-etching effect to convert waste polyethylene terephthalate into hierarchical porous carbon toward excellent capacitive energy storage. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 723:138055. [PMID: 32217393 DOI: 10.1016/j.scitotenv.2020.138055] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 03/17/2020] [Accepted: 03/17/2020] [Indexed: 06/10/2023]
Abstract
With the ever-increasing consumption of polyethylene terephthalate (PET) related products, how to recycle the waste PET still remains as a great challenge for the sustainable development. Converting waste PET into porous carbon material has been emerged as a promising way to address this issue. Recently, the microporous carbon derived from waste PET has drawn considerable attention in adsorption field, but its electrochemical application is still impeded by low specific surface area (SSA <1500 m2 g-1) and small meso-/macropores volume (<0.2 cm3 g-1). Herein, hierarchical porous carbon (HPC) is successfully prepared from waste PET. The obtained HPC possesses a high SSA (2238 m2 g-1) and a large meso-/macropores volume (0.51 cm3 g-1). The formation mechanism of hierarchical porous structure is proposed: co-etching effect of sp2/sp3 hybridized carbon produces micropores and meso-/macropores, respectively. In a three-electrode configuration, HPC based electrode achieves an outstanding capacitance of 413 F g-1, while the traditional microporous carbon exhibits a low capacitance of 142 F g-1. The fabricated symmetric supercapacitor shows a high energy density of 25 Wh kg-1. This work provides a good reference to convert waste plastics into hierarchical porous carbon.
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Affiliation(s)
- Xiaoguang Liu
- Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland
| | - Yanliang Wen
- Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland
| | - Xuecheng Chen
- Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland; State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
| | - Tao Tang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Ewa Mijowska
- Nanomaterials Physicochemistry Department, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland
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Experimental Study on the Physisorption Characteristics of O 2 in Coal Powder are Effected by Coal Nanopore Structure. Sci Rep 2020; 10:6946. [PMID: 32332828 PMCID: PMC7181757 DOI: 10.1038/s41598-020-63988-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 04/06/2020] [Indexed: 11/25/2022] Open
Abstract
Coal is a porous medium. Oxygen molecules in the air penetrate through the pores of coal and are adsorbed on the coal surface. Low-temperature oxidation of coal then occurs, by which coal spontaneous combustion is promoted. Given this process, the authors analysed the physisorption characteristics of O2 in pulverized coal from the perspective of nanopore structure. In this study, five different kinds of coal samples (two lignites, one bituminous coal, and two anthracites) were selected, and the surface morphology, pore structure parameters and oxygen physisorption capacity of the pulverized coals were determined by scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP) and oxygen adsorption with chromatography (OAC), respectively. The experimental results of SEM and MIP show that with the development of coal, the surface folds increase, and the pores increase in number and shrink, which leads to the nanopores of anthracite and bituminous coal being smaller and more complex than those of lignite. The experimental results of OAC show that adsorbed oxygen is physisorbed by pulverized coal in the order lignite > bituminous coal > anthracite. Analysis of the oxygen desorption curves shows that the oxygen desorption rates of the anthracites and bituminous coal are slower than those of the lignites. The results show that the amount of oxygen physisorbed by pulverized coal is proportional to the fractal dimension of the coal pores, proportional to the pore volume of the nanoscale pores, and inversely proportional to the number of closed pores in the coal. Based on the results of the analyses mentioned above, it is important to analyse the process of coal-oxygen chemisorption and the mechanism for low-temperature oxidation of coal to prevent coal spontaneous combustion.
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Feasibility Study on the Use of Recycled Polymers for Malathion Adsorption: Isotherms and Kinetic Modeling. MATERIALS 2020; 13:ma13081824. [PMID: 32290629 PMCID: PMC7215715 DOI: 10.3390/ma13081824] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 11/16/2022]
Abstract
In this study, the use of Polyvinylchloride (PVC) and High Density Polystyrene (HDPS) was demonstrated as an alternative for the adsorption of Malathion. Adsorption kinetics and isotherms were used to compare three different adsorbent materials: PVC, HDPS, and activated carbon. The adsorption capacity of PVC was three times higher than activated carbon, and a theoretical value of 96.15 mg of Malathion could be adsorbed when using only 1 g of PVC. A pseudo first-order rate constant of 1.98 (1/h) was achieved according to Lagergren kinetic model. The adsorption rate and capacity values obtained in the present study are very promising since with very little adsorbent material it is possible to obtain high removal efficiencies. Phosphorous and sulfur elements were identified through Energy Dispersive X-ray (EDX) analysis and evidenced the malathion adsorption on PVC. The characteristic spectrum of malathion was identified by the Fourier Transform Infrared (FTIR) Spectroscopy analysis. The Thermogravimetric and Differential Thermal Analysis (TG/DTA) suggested that the adsorption of malathion on the surface of the polymers was mainly determined by hydrogen bonds.
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Xie B, Qin J, Wang S, Li X, Sun H, Chen W. Adsorption of Phenol on Commercial Activated Carbons: Modelling and Interpretation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17030789. [PMID: 32012816 PMCID: PMC7037044 DOI: 10.3390/ijerph17030789] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/17/2020] [Accepted: 01/24/2020] [Indexed: 11/25/2022]
Abstract
Adsorption by activated carbons (AC) is an effective option for phenolic wastewater treatment. Three commercial AC, including coal-derived granular activated carbons (GAC950), coal-derived powdered activated carbons (PAC800), and coconut shell-derived powdered activated carbons (PAC1000), were utilized as adsorbent to study its viability and efficiency for phenol removal from wastewater. Pseudo-first order, pseudo-second order, and the Weber–Morris kinetic models were used to find out the kinetic parameters and mechanism of adsorption process. Further, to describe the equilibrium isotherms, the experimental data were analyzed by the Langmuir and Freundlich isotherm models. According to the experimental results, AC presented a micro/mesoporous structure, and the removal of phenol by AC was affected by initial phenol concentration, contact time, pH, temperature, and humic acid (HA) concentration. The pseudo-second order kinetic and Langmuir models were found to fit the experimental data very well, and the maximum adsorption capacity was 169.91, 176.58, and 212.96 mg/g for GAC950, PAC800, and PAC1000, respectively, which was attributed to differences in their precursors and physical appearance. Finally, it was hard for phenol to be desorbed in a natural environment, which confirmed that commercial AC are effective adsorbents for phenol removal from effluent wastewater.
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Affiliation(s)
- Bingxin Xie
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China; (B.X.); (S.W.); (X.L.); (W.C.)
| | - Jihong Qin
- Department of Environmental Engineering, Chengdu University, Chengdu 610106, China;
| | - Shu Wang
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China; (B.X.); (S.W.); (X.L.); (W.C.)
| | - Xin Li
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China; (B.X.); (S.W.); (X.L.); (W.C.)
| | - Hui Sun
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China; (B.X.); (S.W.); (X.L.); (W.C.)
- Correspondence: ; Tel.: +86-139-8181-5710
| | - Wenqing Chen
- Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065, China; (B.X.); (S.W.); (X.L.); (W.C.)
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Kong X, Gao H, Song X, Deng Y, Zhang Y. Adsorption of phenol on porous carbon from Toona sinensis leaves and its mechanism. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.137046] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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26
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Ding J, Zhong Y, Li H, Chen Z, Yu W. Valorization of poly(ethylene)terephthalate wastes into nanoporous carbons for the adsorption of 1,3-diphenylguanidine from an aqueous solution. NEW J CHEM 2020. [DOI: 10.1039/c9nj06367f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon prepared by using MgO templating and KOH activation has a better absorption capacity for DPG.
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Affiliation(s)
- Junwei Ding
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Yuan Zhong
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Hui Li
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Zhe Chen
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Wenlong Yu
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- China
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Synthesis of graphene oxide nano-materials coated bio-char using carbonaceous industrial waste for phenol separation from water. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123818] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Xue J, Zhong H, Wang S. Removal of sodium oleate from synthetic manganese leaching solution by coagulation-dissolved air flotation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 247:1-8. [PMID: 31228698 DOI: 10.1016/j.jenvman.2019.06.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/22/2019] [Accepted: 06/08/2019] [Indexed: 06/09/2023]
Abstract
The coagulation-dissolved air flotation for removal of sodium oleate (NaOL) from synthetic manganese leaching solution was focused in this study. It indicates that partially hydrolyzed polyacrylamide (HPAM), NaOL dosage and pH have a multiple effect on the removal efficiency of NaOL. The results represents a significant removal efficiency of 97.6% NaOL was achieved under the optimal conditions of coagulation-dissolved air flotation by dosage of 20 mg/L HPAM and 30 mg/L NaOL, pH 8.0. Solution pH has a significant effect on the distribution of oleate species and Mn2+ species. The addition of HPAM facilitates the formation of OL- micelle and the decrease of critical micelle concentration (CMC). Oleate species primarily exist, containing Mn(OL)2(s), OL- and HOL(aq). HPAM could cause the Zeta potential of NaOL to shift negatively. HPAM could decrease CMC of NaOL and lead to a transition from three dimensional network structure to lamellar structure. NaOL can be removed by coagulation-dissolved air flotation through the adsorption and bridge effect of HPAM chains on the floating bubble surface.
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Affiliation(s)
- Jianrong Xue
- College of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China; College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, 410083, China
| | - Hong Zhong
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, 410083, China
| | - Shuai Wang
- College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Efficient and Clean Utilization of Manganese Resources, Central South University, Changsha, 410083, China.
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Wenlong Y, Zhe C, Shitao Y, Junwei D, Yuling S, Fusheng L, Ming L. Highly dispersed Pt catalyst supported on nanoporous carbon derived from waste PET bottles for reductive alkylation. RSC Adv 2019; 9:31092-31101. [PMID: 35529401 PMCID: PMC9072300 DOI: 10.1039/c9ra04976b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/29/2019] [Indexed: 11/21/2022] Open
Abstract
Nanoporous carbon (NPC) derived from waste polyethyleneterephthalate (PET) bottles was prepared by a MgO-templated method and employed as a support for a highly dispersed platinum catalyst. The NPCs and Pt/NPCs catalysts were characterized by BET, SEM, TEM, XRD and ICP-OES. The catalytic performance of the NPC supported Pt catalysts for reductive alkylation of p-aminodiphenylamine (p-ADPA) with methyl isoamyl ketone (MIAK) was investigated. The textural properties of the NPC prepared could be tailored by changing the size of the MgO-template and the MgO/waste PET powder mass ratio. When the pore size was below 14 nm, the catalytic performance of the Pt/NPCs for the reductive alkylation could be improved with increasing the pore size of the NPCs. Profiting from the higher mechanical strength and the ideal pore structure, Pt/O@NPC50(1/1)–PTA had excellent reusability, which could maintain 98% conversion of p-ADPA after reused 10 times. Nanoporous carbon (NPC) derived from waste polyethyleneterephthalate (PET) bottles was prepared by a MgO-templated method and employed as a support for a highly dispersed platinum catalyst.![]()
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Affiliation(s)
- Yu Wenlong
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 Shandong China
| | - Chen Zhe
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 Shandong China
| | - Yu Shitao
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 Shandong China
| | - Ding Junwei
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 Shandong China
| | - Shan Yuling
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 Shandong China
| | - Liu Fusheng
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 Shandong China
| | - Li Ming
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 Shandong China
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Xu L, Zhang LY, Song H, Dong Q, Dong GH, Kong X, Fang Z. Catalytic fast pyrolysis of polyethylene terephthalate plastic for the selective production of terephthalonitrile under ammonia atmosphere. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 92:97-106. [PMID: 31160031 DOI: 10.1016/j.wasman.2019.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 04/16/2019] [Accepted: 05/06/2019] [Indexed: 06/09/2023]
Abstract
Terephthalonitrile (TPN) was directly produced from polyethylene terephthalate (PET) plastic via catalytic fast pyrolysis with ammonia. The optimal condition for producing TPN was over 1 g γ-Al2O3-2 wt% catalyst at 500 °C under carrier gas (50% NH3 and 50% N2) with yield of nitriles and TPN of 58.1 and 52.3 C%, respectively. The selectivity of TPN in the nitriles was around 90%. Meanwhile, a bit of aromatics, benzonitrile, acetonitrile were also produced as by-products with the total yields of less than 3 C%. The catalyst deactivated slightly after 5 cycles. Possible reaction routes were proposed and it was found that terephthalic acid, benzoic acid, related esters and amides were the major intermediates from PET to nitriles. Acetonitrile could be produced from acetaldehyde and its corresponding imines. In addition, 32.1 C% TPN with high purity (>95%) was obtained via freezing recrystallization. Catalytic pyrolysis with ammonia process was a promising technology for converting waste PET plastics to TPN. This study provided a new method for producing N-containing chemicals from polyester plastics.
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Affiliation(s)
- Lujiang Xu
- Biomass Group, College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Nanjing 210031, China; Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China
| | - Le-Yao Zhang
- Biomass Group, College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Nanjing 210031, China
| | - He Song
- Biomass Group, College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Nanjing 210031, China
| | - Qian Dong
- Biomass Group, College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Nanjing 210031, China
| | - Guo-Hua Dong
- Biomass Group, College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Nanjing 210031, China
| | - Xiao Kong
- Biomass Group, College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Nanjing 210031, China
| | - Zhen Fang
- Biomass Group, College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Nanjing 210031, China. http://biomass-group.njau.edu.cn/
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Hu Y, Gao Z, Yang J, Chen H, Han L. Environmentally benign conversion of waste polyethylene terephthalate to fluorescent carbon dots for “on-off-on” sensing of ferric and pyrophosphate ions. J Colloid Interface Sci 2019; 538:481-488. [DOI: 10.1016/j.jcis.2018.12.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/30/2018] [Accepted: 12/04/2018] [Indexed: 12/20/2022]
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32
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Kinetics and isotherm modeling of phenol adsorption by immobilizable activated carbon. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-018-01528-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lorenc-Grabowska E, Rutkowski P. Micropore Size Distribution and Surface Characteristics Co-influence on 4-Chlorophenol Adsorption Mechanism from Organic Solvents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10480-10490. [PMID: 30028627 DOI: 10.1021/acs.langmuir.8b01493] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The effects of co-influence of pore size distribution and surface chemistry of activated carbon (AC) on the p-chlorophenol (PCP) adsorption from water, heptane, and cyclohexane have been studied. To modify the surface basicity, commercial activated carbon and ash-free commercial activated carbon were subjected to heat treatment in a hydrogen atmosphere. The ACs were also oxidized with hydrogen peroxide to increase the acidity. All applied modifications caused negligible changes in the porous texture and a significant modification on the surface characteristics. The adsorption of PCP was carried out in static conditions at an ambient temperature. The time needed to obtain the adsorption equilibrium from organic solvent was shorter than from water. The boundary layer effect was found to increase in the direction of water < cyclohexane < heptane and was heteroatom-dependent. The equilibrium adsorption isotherms showed all spectrum of isotherm types according to the Giles classification. The strong relationship between the volume of the PCP adsorbed and the volume of ACs micropore with size smaller than 1.6 nm was presented. This work shows that the surface heterogeneity influences the adsorption mechanism in the low adsorbate concentration range, more specifically, the final adsorption capacity is pore-size-dependent regardless of the kind of solvent used.
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Affiliation(s)
- Ewa Lorenc-Grabowska
- Faculty of Chemistry, Department of Polymer and Carbonaceous Materials , Wrocław University of Science and Technology , Gdańska 7/9 , 50-344 Wrocław , Poland
| | - Piotr Rutkowski
- Faculty of Chemistry, Department of Polymer and Carbonaceous Materials , Wrocław University of Science and Technology , Gdańska 7/9 , 50-344 Wrocław , Poland
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Valorization of Biomass Hydrolysis Waste: Activated Carbon from Humins as Exceptional Sorbent for Wastewater Treatment. SUSTAINABILITY 2018. [DOI: 10.3390/su10061795] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yao P, Cen J, Fang M, Wang T, Wang Q. A study on the preparation of pitch-based high-strength columnar activated carbon and mechanism of phenol adsorption from aqueous solution. RSC Adv 2018; 8:17558-17568. [PMID: 35539234 PMCID: PMC9080440 DOI: 10.1039/c7ra13344h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 05/06/2018] [Indexed: 11/21/2022] Open
Abstract
Coal tar pitch was ground into powder and hydroformed with high pressure. After pre-oxidation, the pitch was activated by CO2 at high temperature. The effects of different preparation conditions on the yield, pore structure and phenol adsorption capacity of activated carbon were investigated, and activated carbon prepared under suitable conditions had good adsorption performance. A pore volume of 1-10 nm is the main absorption structure according to the analysis of pore size distribution and phenol adsorption capacity. The activated carbon showed high mechanical strength through compressive strength tests. Graphite nanocrystals around 5 nm were observed in the TEM images, and it illustrates that grain refinement results in the high strength. These nanocrystal stacked structures are easier to make and enlarge pores by activation than graphite layer stacked structures. Surface functional groups are considered not to be the active sites of phenol adsorption as suggested by the results of FTIR and Boehm's titration, and acidic oxygen-containing functional groups are harmful to phenol adsorption, which happen to be removed in the reductive preparation atmosphere. The donor-acceptor complex mechanism can be ruled out, and the π-π interactions are considered the most likely mechanism. The Langmuir and Redlich-Peterson models are better fitted to the adsorption isotherms. Adsorption kinetics fit the intraparticle diffusion model best. Comparison of different activated carbons shows that suitable pore size is important for phenol adsorption. Thermodynamic parameters demonstrate that the adsorption process is spontaneous and exothermic, and the entropy increases. Pitch-based high-strength columnar activated carbon is an effective and low cost adsorbent for phenol wastewater treatment. This carbon nanocrystal material also provides a new direction for catalyst carriers.
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Affiliation(s)
- Peng Yao
- State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou 310027 P. R. China
| | - Jianmeng Cen
- State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou 310027 P. R. China
| | - Mengxiang Fang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou 310027 P. R. China
| | - Tao Wang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou 310027 P. R. China
| | - Qinhui Wang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University Hangzhou 310027 P. R. China
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Doczekalska B, Kuśmierek K, Świątkowski A, Bartkowiak M. Adsorption of 2,4-dichlorophenoxyacetic acid and 4-chloro-2-metylphenoxyacetic acid onto activated carbons derived from various lignocellulosic materials. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2018; 53:290-297. [PMID: 29336683 DOI: 10.1080/03601234.2017.1421840] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Adsorption of 2,4-dichlorophenoxyacetic acid (2,4-D) and 4-chloro-2-metylphenoxyacetic acid (MCPA) from aqueous solution onto activated carbons derived from various lignocellulosic materials including willow, miscanthus, flax, and hemp shives was investigated. The adsorption kinetic data were analyzed using two kinetic models: the pseudo-first order and pseudo-second order equations. The adsorption kinetics of both herbicides was better represented by the pseudo-second order model. The adsorption isotherms of 2,4-D and MCPA on the activated carbons were analyzed using the Freundlich and Langmuir isotherm models. The equilibrium data followed the Langmuir isotherm. The effect of pH on the adsorption was also studied. The results showed that the activated carbons prepared from the lignocellulosic materials are efficient adsorbents for the removal of 2,4-D and MCPA from aqueous solutions.
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Affiliation(s)
- Beata Doczekalska
- a Faculty of Wood Technology , Institute of Chemical Wood Technology, Poznań University of Life Sciences , Poznan , Poland
| | - Krzysztof Kuśmierek
- b Faculty of Advanced Technologies and Chemistry , Institute of Chemistry, Military University of Technology , Warsaw , Poland
| | - Andrzej Świątkowski
- b Faculty of Advanced Technologies and Chemistry , Institute of Chemistry, Military University of Technology , Warsaw , Poland
| | - Monika Bartkowiak
- a Faculty of Wood Technology , Institute of Chemical Wood Technology, Poznań University of Life Sciences , Poznan , Poland
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Umpierres CS, Thue PS, Lima EC, Reis GSD, de Brum IAS, Alencar WSD, Dias SLP, Dotto GL. Microwave-activated carbons from tucumã (Astrocaryum aculeatum) seed for efficient removal of 2-nitrophenol from aqueous solutions. ENVIRONMENTAL TECHNOLOGY 2018; 39:1173-1187. [PMID: 28443387 DOI: 10.1080/09593330.2017.1323957] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 03/27/2017] [Indexed: 06/07/2023]
Abstract
Activated carbons (ACs) prepared from tucumã seed (Astrocaryum aculeatum) were used for 2-nitrophenol removal from aqueous solutions. The ACs were characterized by elemental analysis, FTIR, N2 adsorption/desorption isotherms, TGA, hydrophobicity/hydrophilicity balance, and total of acidic and basic groups. The ACs showed to have hydrophilic surfaces and they presented high specific surface areas (up to 1318 m2 g-1). In batch optimization studies, maximum removal was obtained at pH 7, contact time of 30 min, adsorbent dosage 1.5 gL-1 and temperature of 50°C. The general-order kinetic model and Liu isotherm model best fit the kinetic and equilibrium adsorption data with a maximum adsorption capacity of 1382 mg g-1 at 50°C. Effect of temperature and thermodynamic studies revealed that the adsorption processes of 2-nitrophenol onto ACs are dependent on temperature and are exothermic and spontaneous, respectively. About the applicability of the ACs for treating simulated effluents, the tucumã seed-activated carbon showed an excellent outcome in the treatment of simulated effluents, evidencing its high efficiency for phenolic compound adsorption. Tucumã seed-ACs showed to be cost effective and highly efficient adsorbents for efficient removal of 2-nitrophenol from aqueous solutions.
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Affiliation(s)
- Cibele S Umpierres
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Pascal S Thue
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Eder C Lima
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Glaydson S Dos Reis
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
- b School of Engineering, Department of Metallurgy , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Irineu A S de Brum
- b School of Engineering, Department of Metallurgy , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Wagner S de Alencar
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
- c Institute of Exact Sciences , Federal University of South and Southeast of Pará (UNIFESSPA) , Marabá , Brazil
| | - Silvio L P Dias
- a Institute of Chemistry , Federal University of Rio Grande do Sul (UFRGS) , Porto Alegre , Brazil
| | - Guilherme L Dotto
- d Chemical Engineering Department , Federal University of Santa Maria (UFSM) , Santa Maria , Brazil
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Nanofiber-Based Materials for Persistent Organic Pollutants in Water Remediation by Adsorption. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8020166] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Ma J, Liu J, Song J, Tang T. Pressurized carbonization of mixed plastics into porous carbon sheets on magnesium oxide. RSC Adv 2018; 8:2469-2476. [PMID: 35541487 PMCID: PMC9077333 DOI: 10.1039/c7ra12733b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 01/03/2018] [Indexed: 11/21/2022] Open
Abstract
Mixed thermoplastics were converted into porous carbon sheets over a magnesium oxide template with high yield in an autoclave reactor at 500 °C.
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Affiliation(s)
- Jiali Ma
- Department of Chemistry
- College of Science
- North University of China
- Taiyuan 030051
- China
| | - Jie Liu
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Jiangfeng Song
- Department of Chemistry
- College of Science
- North University of China
- Taiyuan 030051
- China
| | - Tao Tang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
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40
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Tunable synthesis of the polar modified hyper-cross-linked resins and application to the adsorption. J Colloid Interface Sci 2017. [DOI: 10.1016/j.jcis.2017.06.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Yu H, Zhang Q, Dahl M, Joo JB, Wang X, Wang L, Yin Y. Dual‐Pore Carbon Shells for Efficient Removal of Humic Acid from Water. Chemistry 2017; 23:16249-16256. [DOI: 10.1002/chem.201702318] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Revised: 07/30/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Hongxia Yu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resource Reuse School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing 210094 Jiangsu Province P. R. China
- Key Laboratory of Soft Chemistry and Functional Materials Nanjing University of Science and Technology, Ministry of Education Nanjing 210094 Jiangsu Province P. R. China), Fax: (+86) 25-84315054
- Department of Chemistry University of California, Riverside CA 92521 USA
| | - Qiao Zhang
- Department of Chemistry University of California, Riverside CA 92521 USA
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University Suzhou 215123 Jiangsu Province P. R. China
| | - Michael Dahl
- Department of Chemistry University of California, Riverside CA 92521 USA
| | - Ji Bong Joo
- Department of Chemistry University of California, Riverside CA 92521 USA
| | - Xin Wang
- Key Laboratory of Soft Chemistry and Functional Materials Nanjing University of Science and Technology, Ministry of Education Nanjing 210094 Jiangsu Province P. R. China), Fax: (+86) 25-84315054
| | - Lianjun Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resource Reuse School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing 210094 Jiangsu Province P. R. China
| | - Yadong Yin
- Department of Chemistry University of California, Riverside CA 92521 USA
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Issabayeva G, Hang SY, Wong MC, Aroua MK. A review on the adsorption of phenols from wastewater onto diverse groups of adsorbents. REV CHEM ENG 2017. [DOI: 10.1515/revce-2017-0007] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Phenol and its derivatives are used in numerous industrial processes; these compounds are highly toxic and corrosive, classified as priority pollutants. One of the effective processes for the removal of phenols is adsorption. Numerous and various adsorbents in nature have been researched for this purpose in the past decade. Their adsorption capacities vary from 1 to >1000 mg/g, and are influenced by such factors as the adsorbent’s surface area, pH, temperature, concentration of phenol and surface functional groups, contact time, etc. In this review, adsorbents tested for the removal of phenol and phenol compounds have been classified into four groups: carbonaceous adsorbents, clay and natural mineral adsorbents, polymer-based adsorbents, and novel adsorbents. The highest adsorption capacities were attained by polymer-based adsorbents (>1000 mg/g), whereas natural clays and novel adsorbents showed adsorption capacities of the lower range as compared to the carbonaceous adsorbents. The major advantage of phenol adsorption over other applicable processes is the high potential for phenol recovery and reuse.
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Affiliation(s)
- Gulnaziya Issabayeva
- Department of Chemical Engineering , Lee Kong Chian Faculty of Science and Engineering, Universiti Tunku Abdul Rahman (UTAR) , Sungai Long, 43000 Kajang , Malaysia
| | - Shu Yan Hang
- Department of Chemical Engineering , Lee Kong Chian Faculty of Science and Engineering, Universiti Tunku Abdul Rahman (UTAR) , Sungai Long, 43000 Kajang , Malaysia
| | - Mee Chu Wong
- Department of Mechanical and Material Engineering , Lee Kong Chian Faculty of Science and Engineering, Universiti Tunku Abdul Rahman (UTAR) , Sungai Long, 43000 Kajang , Malaysia
| | - Mohamed Kheireddine Aroua
- School of Science and Technology, Sunway University , No. 5, Jalan Universiti , Bandar Sunway, 47500 Selangor Darul Ehsan , Malaysia
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Silva LAD, Borges SMS, Paulino PN, Fraga MA, Oliva STD, Marchetti SG, Rangel MDC. Methylene blue oxidation over iron oxide supported on activated carbon derived from peanut hulls. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.11.036] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chemical Modification of Bagasse-Based Mesoporous Carbons for Chromium(III) Ion Adsorption. J Appl Biomater Funct Mater 2017; 15:e52-e61. [PMID: 28574099 PMCID: PMC6379774 DOI: 10.5301/jabfm.5000358] [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] [Accepted: 04/11/2017] [Indexed: 12/03/2022] Open
Abstract
Aims Modified bagasse-based mesoporous carbons were prepared for the efficient
chromium(III) ion adsorption and removal from aqueous solutions. Methods Mesoporous carbons were prepared from bagasse with H3PO4 activation and
subsequently oxidized with nitric acid and modified with
ethylenediamine. Results The results showed that the modified carbon was rich in mesopores, oxygen and
nitrogen-containing groups, and the Cr(III) adsorption capacity was greatly
improved after modification, which was found to be higher than both pristine
and oxidized carbons. The Cr(III) adsorption capacity on modified carbon was
significantly influenced by the solution pH, and the optimum pH was 6 with
the maximum Cr(III) adsorption capacity up to 24.61mg/g, which was almost 3
times higher than that for pristine carbon. Thermodynamic results manifested
the adsorption was spontaneous and endothermic. Kinetic rates fitted the
pseudo-second-order model very well. XPS study indicated the amino group was
a key factor of the high efficient adsorption.
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Efficient removal of phenol from aqueous solutions using hydroxyapatite and substituted hydroxyapatites. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1197-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Strachowski P, Kaszuwara W, Bystrzejewski M. A novel magnetic composite adsorbent of phenolic compounds based on waste poly(ethylene terephthalate) and carbon-encapsulated magnetic nanoparticles. NEW J CHEM 2017. [DOI: 10.1039/c7nj01818e] [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]
Abstract
A novel magnetic carbon composite based on carbon-encapsulated iron nanoparticles and waste poly(ethylene terephthalate) was synthesized.
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Affiliation(s)
- P. Strachowski
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
| | - W. Kaszuwara
- Faculty of Materials Science
- Warsaw University of Technology
- 00-141 Warsaw
- Poland
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48
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Qi Y, Yang M, Xu W, He S, Men Y. Natural polysaccharides-modified graphene oxide for adsorption of organic dyes from aqueous solutions. J Colloid Interface Sci 2017; 486:84-96. [DOI: 10.1016/j.jcis.2016.09.058] [Citation(s) in RCA: 199] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/22/2016] [Accepted: 09/26/2016] [Indexed: 12/25/2022]
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