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Ribeiro AC, Januário EFD, Vidovix TB, Vieira AMS, Duarte EDCNFDA, Bergamasco R. Synthesis of a novel functionalized biosorbent from mango stone and its application in the pharmaceutical's removal from water and a synthetic mixture. CHEMOSPHERE 2024; 346:140520. [PMID: 38303395 DOI: 10.1016/j.chemosphere.2023.140520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/17/2023] [Accepted: 10/21/2023] [Indexed: 02/03/2024]
Abstract
This paper explores the feasibility of functionalizing mango stones with iron oxide magnetic nanoparticles (MS-Fe3O4) by coprecipitation in batch adsorption processes. The synthesized material was characterized and applied in chloroquine (CQN) and sertraline hydrochloride (SER) removal from contaminated waters. The biosorbent was subjected to a regenerative study and treatment using a synthetic mixture of contaminants to evaluate its applicability in real effluents. The biosorbent was analyzed by transmission electron microscopy images, scanning electron microscopy, dispersive X-ray spectroscopy, Fourier transform infrared spectra, and zeta potential to characterize its chemical and morphology properties. The techniques applied showed the effectiveness of the proposed modification. In the adsorption experiments, the optimal adsorbent dosage was 0.01 g for both contaminants. The pH strongly influenced the adsorption of the drugs on MS-Fe3O4, and the best results were obtained in the pH range of 5-6. Kinetic data showed a better fit to the pseudo-second-order model, and the equilibrium time was achieved in 16 h for CQN and 4 h for SER. Isotherm studies revealed maximum adsorptive capacities of 49.42 and 64.79 mg g-1, respectively, for CQN and SER, at 318 K, demonstrating that the increase in temperature is a favorable factor, and the Sips model better describes the process. The thermodynamic parameters indicate an endothermic (ΔH° >0), spontaneous (ΔG° <0), and reversible (ΔS° >0) nature of the adsorption. This process is essentially governed by physical forces, such as hydrogen and π-π bonds. However, it is also valid to consider the presence of electrostatic forces due to the ionizing nature of CQN and SER. The MS-Fe3O4 biosorbent showed good performance when evaluated in a synthetic mixture of four contaminants, with an overall removal efficiency of approximately 86% and the regenerative capacity of three reusing cycles.
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Affiliation(s)
- Anna Carla Ribeiro
- State University of Maringá, Department of Biotechnology, Genetics and Cell Biology, Maringá, Paraná, Brazil; Linking Landscape, Environment, Agriculture and Food, School of Agriculture - University of Lisbon, Lisbon, Portugal.
| | | | - Taynara Basso Vidovix
- State University of Maringá, Department of Chemical Engineering, Maringá, 87020-900, Paraná, Brazil
| | | | | | - Rosângela Bergamasco
- State University of Maringá, Department of Chemical Engineering, Maringá, 87020-900, Paraná, Brazil
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Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material. MATERIALS 2022; 15:ma15103428. [PMID: 35629454 PMCID: PMC9143833 DOI: 10.3390/ma15103428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 05/03/2022] [Accepted: 05/04/2022] [Indexed: 02/01/2023]
Abstract
For the first time, a comprehensive review of the literature data on the use of apricot (Prunus armeniaca) biomass components as a sorption material for the treatment of wastewater and environmental water from various pollutants is carried out in the present study. In addition to a comprehensive analysis of contemporary studies, the current work carried out its own microstructural and energy dispersive studies. It shows that apricot kernel shell is a promising raw material for obtaining sorption materials that can be used to extract various pollutants from aqueous media. The parameters of sorption interaction are presented, at which the highest rate of removal of pollutants was achieved. It is shown that the sorption capacity of apricot biomass components can be increased by modifying it with various chemical reagents, as well as other physical and physicochemical methods. We reveal that most publications consider the use of the latter as a raw material for the production of activated carbons. It is established that the surface area and total pore space of activated carbons from apricot kernel shells depend on the modes of carbonization and activation. It is shown that activated carbons are effective adsorbents for removing various pollutants (metal ions, dyes, oil and oil products) from aqueous media. It was found that the adsorption isotherms of pollutants in most cases are best described by the Langmuir and Freundlich models, and the process kinetics is most often described by the pseudo-second-order model. The possibility of improving the sorption characteristics of apricot biomass during chemical or physicochemical treatment is also shown.
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Caicedo Salcedo O, Vargas DP, Giraldo L, Moreno-Piraján JC. Study of Mercury [Hg(II)] Adsorption from Aqueous Solution on Functionalized Activated Carbon. ACS OMEGA 2021; 6:11849-11856. [PMID: 34056339 PMCID: PMC8153996 DOI: 10.1021/acsomega.0c06084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Mercury and its compounds are toxic substances, whose uncontrolled presence in the environment represents a danger to ecosystems and the organisms that inhabit in it. For this reason, in this work, we carried out a study of mercury [Hg(II)] adsorption from aqueous solution on functionalized activated carbon. The activated carbons were prepared by chemical activation of a mango seed with solutions of CaCl2 and H2SO4 at different concentrations, later, the carbonaceous materials were functionalized with Na2S, with the aim of increasing the sulfur content in the carbonaceous matrix and its affinity to mercury. The materials were characterized using: proximal analysis, scanning electron microscopy, Boehm titrations, point zero charge (pHPZC), and infrared spectroscopy. Additionally, immersion calorimetries were performed in the mercury solution. The results of textural and chemical characterization show materials with low Brunauer-Emmett-Teller (BET) surface areas between 2 and 33 m2·g-1 and low pore volumes. However, they had a rich surface chemistry of oxygenated groups. The enthalpies of immersion in the mercury solutions are between -31.71 and -77.31 J·g-1, showing a correlation between the magnitude of the enthalpic data and the adsorption capacity of the materials. It was evidenced that the functionalization process produces a decrease in the surface area and pore volume of the activated carbons, and an increase in the sulfur content of the carbonaceous matrix. It was evidenced that the functionalization process generated an increase in the mercury [Hg(II)] adsorption capacity between 21 and 49% compared to those of the nonfunctionalized materials, reaching a maximum adsorption capacity of 85.6 mgHg2+g-1.
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Affiliation(s)
- Oscar
D. Caicedo Salcedo
- Facultad
de Ciencias, Departamento de Biología, Grupo de Investigación
en Materiales Porosos con Aplicaciones Tecnológicas y Ambientales, Universidad del Tolima, Ibagué 730006299, Colombia
| | - Diana P. Vargas
- Facultad
de Ciencias, Departamento de Química, Grupo de Investigación
en Materiales Porosos con Aplicaciones Tecnológicas y Ambientales, Universidad del Tolima, Ibagué 730006299, Colombia
| | - Liliana Giraldo
- Facultad
de Ciencias, Departamento de Química, Grupo de Investigación
en Calorimetría, Universidad Nacional
de Colombia, Bogotá 111321, Colombia
| | - Juan Carlos Moreno-Piraján
- Facultad
de Ciencias, Departamento de Química, Grupo de Investigación
en Sólidos Porosos y Calorimetría, Universidad de los Andes, Bogotá 111711, Colombia
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Lima EMB, Middea A, Neumann R, Thiré RMDSM, Pereira JF, Freitas SC, Penteado MS, Lima AM, Minguita APDS, Mattos MDC, Teixeira ADS, Pereira ICS, Rojas dos Santos NR, Marconcini JM, Oliveira RN, Corrêa AC. Biocomposites of PLA and Mango Seed Waste: Potential Material for Food Packaging and a Technological Alternative to Reduce Environmental Impact. STARCH-STARKE 2021. [DOI: 10.1002/star.202000118] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Edla Maria Bezerra Lima
- EMBRAPA Food Technology Av. das Américas, 29501 – Guaratiba Rio de Janeiro Rio de Janeiro 23020‐470 Brazil
| | - Antonieta Middea
- Centre for Mineral Technology (CETEM) Av. Pedro Calmon, 900, Cidade Universitária Rio de Janeiro Rio de Janeiro 21941‐908 Brazil
| | - Reiner Neumann
- Centre for Mineral Technology (CETEM) Av. Pedro Calmon, 900, Cidade Universitária Rio de Janeiro Rio de Janeiro 21941‐908 Brazil
| | - Rossana Mara da Silva Moreira Thiré
- Program of Metallurgical and Materials Engineering (PEMM)/COPPE Federal University of Rio de Janeiro (UFRJ) Technology Center, Ilha do Fundão Rio de Janeiro Rio de Janeiro 21941‐598 Brazil
| | - Jéssica Fernandes Pereira
- EMBRAPA Food Technology Av. das Américas, 29501 – Guaratiba Rio de Janeiro Rio de Janeiro 23020‐470 Brazil
| | - Sidinea Cordeiro Freitas
- EMBRAPA Food Technology Av. das Américas, 29501 – Guaratiba Rio de Janeiro Rio de Janeiro 23020‐470 Brazil
| | - Marília Stephan Penteado
- EMBRAPA Food Technology Av. das Américas, 29501 – Guaratiba Rio de Janeiro Rio de Janeiro 23020‐470 Brazil
| | - Aline Muniz Lima
- EMBRAPA Food Technology Av. das Américas, 29501 – Guaratiba Rio de Janeiro Rio de Janeiro 23020‐470 Brazil
| | | | - Mariana da Costa Mattos
- EMBRAPA Food Technology Av. das Américas, 29501 – Guaratiba Rio de Janeiro Rio de Janeiro 23020‐470 Brazil
| | | | | | | | - José Manoel Marconcini
- National Nanotechnology Laboratory for Agriculture (LNNA) EMBRAPA Instrumentation São Carlos São Paulo 13560‐970 ‐ PO Box 741 Brazil
| | - Renata Nunes Oliveira
- Post Graduation Program of Chemical Engineering Chemical Engineering Department Federal Rural University of Rio de Janeiro Rod. BR 465, Km 07, s/n – Zona Rural Seropédica Rio de Janeiro 23890‐000 Brazil
| | - Ana Carolina Corrêa
- National Nanotechnology Laboratory for Agriculture (LNNA) EMBRAPA Instrumentation São Carlos São Paulo 13560‐970 ‐ PO Box 741 Brazil
- Graduate Program in Materials Science and Engineering Federal University of Sao Carlos (UFSCar) Rod. Washington Luiz, km 235 São Carlos São Paulo 13565‐905 Brazil
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Monteiro CR, Ávila PF, Pereira MAF, Pereira GN, Bordignon SE, Zanella E, Stambuk BU, de Oliveira D, Goldbeck R, Poletto P. Hydrothermal treatment on depolymerization of hemicellulose of mango seed shell for the production of xylooligosaccharides. Carbohydr Polym 2021; 253:117274. [DOI: 10.1016/j.carbpol.2020.117274] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 11/15/2022]
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Gonzalez M, Reyes I, Carrera-Tarela Y, Vernon-Carter EJ, Alvarez-Ramirez J. Charcoal bread: Physicochemical and textural properties, in vitro digestibility, and dough rheology. Int J Gastron Food Sci 2020. [DOI: 10.1016/j.ijgfs.2020.100227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Zuin VG, Segatto ML, Zanotti K. Towards a green and sustainable fruit waste valorisation model in Brazil: optimisation of homogenizer-assisted extraction of bioactive compounds from mango waste using a response surface methodology. PURE APPL CHEM 2020. [DOI: 10.1515/pac-2019-1001] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
AbstractFood waste valorisation is currently at the core of discussions and development of future economic models which, allied to the application of green and sustainable technologies, offers a viable alternative to shift industrial practices towards a circular bioeconomy. The feasibility and technological possibilities based on an integrated mango waste biorefinery concept, focusing on the extraction of bioactive compounds, are discussed in this paper. Additionally, a statistically robust methodology is presented as a green approach to optimise the variables of a sustainable, low time and energy consumption extraction technique (homogenizer-assisted extraction). Maximum concentrations of the bioactive compounds were obtained in similar values of parameters ethanol/water concentration (67.73 and 70.11 %), sample/solvent ratio (29.33 and 28.17 %) and time (4.47 and 5.00 min) for mangiferin (354.4 mg/kg DW) and hyperoside (258.7 mg/kg DW), respectively. These results demonstrated the efficiency of the proposed green and sustainable method to obtain bioactive compounds from a very common and significant tropical fruit waste in Brazil, based on an integrated mango biorefinery concept.
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Affiliation(s)
- Vânia G. Zuin
- Department of Chemistry, Federal University of São Carlos, Rod. Washington Luís (SP-310), km 235, 13565-905, São Carlos, SP, Brazil
- Green Chemistry Centre of Excellence, University of York, Heslington, York, YO10 5DD, UK, Tel.: +55 16 33518206, e-mail:
| | - Mateus L. Segatto
- Department of Chemistry, Federal University of São Carlos, Rod. Washington Luís (SP-310), km 235, 13565-905, São Carlos, SP, Brazil
| | - Karine Zanotti
- Department of Chemistry, Federal University of São Carlos, Rod. Washington Luís (SP-310), km 235, 13565-905, São Carlos, SP, Brazil
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Krishnamoorthy R, Govindan B, Banat F, Sagadevan V, Purushothaman M, Show PL. Date pits activated carbon for divalent lead ions removal. J Biosci Bioeng 2019; 128:88-97. [DOI: 10.1016/j.jbiosc.2018.12.011] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/04/2018] [Accepted: 12/17/2018] [Indexed: 10/27/2022]
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da S. Pereira A, Fontes-Sant’Ana GC, Amaral PF. Mango agro-industrial wastes for lipase production from Yarrowia lipolytica and the potential of the fermented solid as a biocatalyst. FOOD AND BIOPRODUCTS PROCESSING 2019. [DOI: 10.1016/j.fbp.2019.02.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Gupta VK, Carrott PJM, Singh R, Chaudhary M, Kushwaha S. Cellulose: A review as natural, modified and activated carbon adsorbent. BIORESOURCE TECHNOLOGY 2016; 216:1066-76. [PMID: 27265088 DOI: 10.1016/j.biortech.2016.05.106] [Citation(s) in RCA: 246] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/25/2016] [Accepted: 05/26/2016] [Indexed: 05/24/2023]
Abstract
Cellulose is a biodegradable, renewable, non-meltable polymer which is insoluble in most solvents due to hydrogen bonding and crystallinity. Natural cellulose shows lower adsorption capacity as compared to modified cellulose and its capacity can be enhanced by modification usually by chemicals. This review focuses on the utilization of cellulose as an adsorbent in natural/modified form or as a precursor for activated carbon (AC) for adsorbing substances from water. The literature revealed that cellulose can be a promising precursor for production of activated carbon with appreciable surface area (∼1300m(2)g(-1)) and total pore volume (∼0.6cm(3)g(-1)) and the surface area and pore volume varies with the cellulose content. Finally, the purpose of review is to report a few controversies and unresolved questions concerning the preparation/properties of ACs from cellulose and to make aware to readers that there is still considerable scope for future development, characterization and utilization of ACs from cellulose.
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Affiliation(s)
- V K Gupta
- Department of Applied Chemistry, University of Johannesburg, Johannesburg, South Africa
| | - P J M Carrott
- Centro de Química de Évora and Departamento de Química, Universidade de Évora, Colégio Luís António Verney, 7000-671 Évora, Portugal
| | - Randhir Singh
- Department of Chemistry, Gurukula Kangri Vishwavidyalaya, Haridwar 249404, India
| | - Monika Chaudhary
- Department of Chemistry, Gurukula Kangri Vishwavidyalaya, Haridwar 249404, India
| | - Sarita Kushwaha
- Department of Chemistry, Gurukula Kangri Vishwavidyalaya, Haridwar 249404, India
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Bae W, Kim J, Chung J. Production of granular activated carbon from food-processing wastes (walnut shells and jujube seeds) and its adsorptive properties. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION (1995) 2014; 64:879-86. [PMID: 25185390 DOI: 10.1080/10962247.2014.897272] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Commercial activated carbon is a highly effective absorbent that can be used to remove micropollutants from water. As a result, the demand for activated carbon is increasing. In this study, we investigated the optimum manufacturing conditions for producing activated carbon from ligneous wastes generated from food processing. Jujube seeds and walnut shells were selected as raw materials. Carbonization and steam activation were performed in a fixed-bed laboratory electric furnace. To obtain the highest iodine number, the optimum conditions for producing activated carbon from jujube seeds and walnut shells were 2 hr and 1.5 hr (carbonization at 700 degrees C) followed by 1 hr and 0.5 hr (activation at 1000 degrees C), respectively. The surface area and iodine number of activated carbon made from jujube seeds and walnut shells were 1,477 and 1,184 m2/g and 1,450 and 1,200 mg/g, respectively. A pore-distribution analysis revealed that most pores had a pore diameter within or around 30-40 angstroms, and adsorption capacity for surfactants was about 2 times larger than the commercial activated carbon, indicating that waste-based activated carbon can be used as alternative. Implications: Wastes discharged from agricultural and food industries results in a serious environmental problem. A method is proposed to convert food-processing wastes such as jujube seeds and walnut shells into high-grade granular activated carbon. Especially, the performance of jujube seeds as activated carbon is worthy of close attention. There is little research about the application ofjujube seeds. Also, when compared to two commercial carbons (Samchully and Calgon samples), the results show that it is possible to produce high-quality carbon, particularly from jujube seed, using a one-stage, 1,000 degrees C, steam pyrolysis. The preparation of activated carbon from food-processing wastes could increase economic return and reduce pollution.
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Paredes-Doig AL, Sun-Kou MDR, Picasso-Escobar G, Cannata JL. A Study of the Adsorption of Aromatic Compounds Using Activated Carbons Prepared from Chestnut Shell. ADSORPT SCI TECHNOL 2014. [DOI: 10.1260/0263-6174.32.2-3.165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Ana L. Paredes-Doig
- Sección Química, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Avenida Universitaria 1801, Lima 32, Perú
| | - Maria del Rosario Sun-Kou
- Sección Química, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Avenida Universitaria 1801, Lima 32, Perú
| | - Gino Picasso-Escobar
- Laboratorio de Investigación de Fisicoquímica, Facultad de Ciencias, Universidad Nacional de Ingeniería, Avenida Túpac Amaru 210, Rímac, Lima, Perú
| | - José Lazo Cannata
- Sección Química, Departamento de Ciencias, Pontificia Universidad Católica del Perú, Avenida Universitaria 1801, Lima 32, Perú
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Peláez-Cid AA, Tlalpa-Galán MA, Herrera-González AM. Carbonaceous material production from vegetable residue and their use in the removal of textile dyes present in wastewater. ACTA ACUST UNITED AC 2013. [DOI: 10.1088/1757-899x/45/1/012023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Henrique MA, Silvério HA, Flauzino Neto WP, Pasquini D. Valorization of an agro-industrial waste, mango seed, by the extraction and characterization of its cellulose nanocrystals. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2013; 121:202-209. [PMID: 23542530 DOI: 10.1016/j.jenvman.2013.02.054] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 01/08/2013] [Accepted: 02/24/2013] [Indexed: 06/02/2023]
Abstract
Mango seeds are lignocellulosic agro-industrial residues available in large quantities in tropical countries and are simply discarded or used as animal feed. They are a natural and renewable resource, and were used to generate new polymeric materials in this work. This new materials can be used as alternatives to fossil resources such as petroleum. This work aimed to extract and characterize cellulose nanocrystals (CN) from mango seed by acid hydrolysis to obtain a material suitable as a reinforcing agent in the manufacturing of nanocomposites. The fibers of mango seeds were ground in mills and purified mainly to remove lignin. The raw mango seed (MS) and the purified mango seed (PMS) were analyzed for chemical composition and characterized by infrared and X-rays. Cellulose nanocrystals from the mango seed (CNM) were isolated by acid hydrolysis at 40 °C for 10 min, with 20 ml of H2SO4 (11.21 M) used for every gram of cellulose. The yield at this step was 22.8%. CNM were needle-shaped, with high crystallinity (90.6%), good thermal stability (around 248 °C), a medium length (L) of 123.4 ± 22.1 nm and a diameter (D) of 4.59 ± 2.22 nm, giving an aspect ratio (L/D) of about 34.1 ± 18.6. The diameter measurements of CNM were also confirmed by Scherrer's equation. This work also aimed to reuse mango seed produced as industrial waste, giving it a useful application and preventing its role as an environmental pollutant.
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Affiliation(s)
- Mariana Alves Henrique
- Instituto de Química, Universidade Federal de Uberlândia, Campus Santa Mônica, Av. João Naves de Ávila, 2121, 38400-902 Uberlândia, Minas Gerais, Brazil
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Removal of lead(II) and zinc(II) ions from aqueous solutions by adsorption onto activated carbon synthesized from watermelon shell and walnut shell. ADSORPTION 2013. [DOI: 10.1007/s10450-013-9491-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Olivella MÀ, Jové P, Bianchi A, Bazzicalupi C, Cano L. An integrated approach to understanding the sorption mechanism of phenanthrene by cork. CHEMOSPHERE 2013; 90:1939-1944. [PMID: 23149185 DOI: 10.1016/j.chemosphere.2012.10.035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Revised: 10/04/2012] [Accepted: 10/17/2012] [Indexed: 06/01/2023]
Abstract
Previous studies have shown the high sorption affinity of polycyclic aromatic hydrocarbons by cork. The aim of the present work is to go further by investigating the sorption mechanism of polycyclic aromatic hydrocarbons (exemplified by phenanthrene) on cork and the availability of the chemical components (i.e. lignin, suberin, holocellulose and extractives) to retain phenanthrene. Two approaches were integrated to reach this objective: (1) statistical multivariate analysis to obtain correlations between the sorption capacity, measured as K(oc), and the sorbent properties (i.e. polarity, acidic functional groups, %dichloromethane extractives, %ethanol and water extractives, %suberin, %lignin and %holocellulose) and (2) modeling calculations to obtain information on interaction at the molecular level. The statistical multivariate analysis demonstrated a strong and positive correlation between K(oc) and the lignin content as well as negative correlations between K(oc) and the phenolic groups and %dichloromethane extractives contents. The modeling study showed that the lignin-phenanthrene interaction is mostly hydrophobic in nature being largely determined by the π-stacking interaction between the aromatic groups of the interacting partners. This result justifies the observed correlations as dichloromethane extractives, being hydrophobic, compete with phenanthrene adsorption, whereas phenolic groups, as well as negatively charged groups, enhance the hydrophilic character of the sorbent surface, thus hindering the adsorption of phenanthrene.
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Affiliation(s)
- M À Olivella
- University of Girona, Department of Chemistry, Campus Montilivi s/n, 17071 Girona, Spain.
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17
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Optimizing the removal of fluoride from water using new carbons obtained by modification of nut shell with a calcium solution from egg shell. Biochem Eng J 2012. [DOI: 10.1016/j.bej.2011.12.011] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Vargas AMM, Cazetta AL, Garcia CA, Moraes JCG, Nogami EM, Lenzi E, Costa WF, Almeida VC. Preparation and characterization of activated carbon from a new raw lignocellulosic material: flamboyant (Delonix regia) pods. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2011; 92:178-184. [PMID: 20869158 DOI: 10.1016/j.jenvman.2010.09.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Revised: 08/09/2010] [Accepted: 09/05/2010] [Indexed: 06/08/2023]
Abstract
Activated carbons were prepared from flamboyant pods by NaOH activation at three different NaOH:char ratios: 1:1 (AC-1), 2:1 (AC-2), and 3:1 (AC-3). The properties of these carbons, including BET surface area, pore volume, pore size distribution, and pore diameter, were characterized from N(2) adsorption isotherms. The activated carbons obtained were essentially microporous and had BET surface area ranging from 303 to 2463 m(2) g(-1).(13)C (CP/MAS and MAS) solid-state NMR shows that the lignocellulosic structures were completely transformed into a polycyclic material after activation process, thermogravimetry shows a high thermal resistance, Boehm titration and Fourier-transform infrared spectroscopy allowed characterizing the presence of functional groups on the surface of activated carbons. Scanning electron microscopy images showed a high pore development. The experimental results indicated the potential use of flamboyant pods as a precursor material in the preparation of activated carbon.
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Affiliation(s)
- Alexandro M M Vargas
- Department of Chemistry, Universidade Estadual de Maringá, Av. Colombo 5790, CEP 87020-900 - Maringá, Paraná, Brazil
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Dávila-Jiménez MM, Elizalde-González MP, Hernández-Montoya V. Performance of mango seed adsorbents in the adsorption of anthraquinone and azo acid dyes in single and binary aqueous solutions. BIORESOURCE TECHNOLOGY 2009; 100:6199-6206. [PMID: 19692231 DOI: 10.1016/j.biortech.2009.06.105] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2008] [Revised: 06/26/2009] [Accepted: 06/26/2009] [Indexed: 05/28/2023]
Abstract
In this study the husk of mango seed and two carbonaceous adsorbents prepared from it were used to study the adsorption behavior of eight acid dyes. The adsorbed amount in mmol m(-2) decayed asymptotically as the molecular volume and area increased. The interaction between the studied dyes and the mesoporous carbon was governed by the ionic species in solution and the acidic/basic groups on the surface. Less than 50% of the external surface of the microporous carbon became covered with the dyes molecules, though monolayer formation demonstrating specific interactions only with active sites on the surface and the adsorption magnitudes correlated with the shape parameter of the molecule within a particular dye group. The adsorption behavior in mixtures was determined by the molecular volume of the constituents; the greater the molecular volume difference, the greater the effect on the adsorbed amount. We also demonstrated that the raw husk of the mango seed can be used to remove up to 50% from model 50 mg l(-1) solutions of the studied acid dyes.
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Affiliation(s)
- Martín M Dávila-Jiménez
- Facultad de Ciencias Químicas, Universidad Autónoma de Puebla, Apdo. Postal J-55, Puebla 72570 Pue., Mexico
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Chandra TC, Mirna MM, Sunarso J, Sudaryanto Y, Ismadji S. Activated carbon from durian shell: Preparation and characterization. J Taiwan Inst Chem Eng 2009. [DOI: 10.1016/j.jtice.2008.10.002] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Elizalde-González MP, Hernández-Montoya V. Use of Wide-Pore Carbons to Examine Intermolecular Interactions during the Adsorption of Anthraquinone Dyes from Aqueous Solution. ADSORPT SCI TECHNOL 2009. [DOI: 10.1260/0263-6174.27.5.447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Zvinowanda CM, Okonkwo JO, Agyei NM, Shabalala PN. Physicochemical characterization of maize tassel as an adsorbent. I. Surface texture, microstructure, and thermal stability. J Appl Polym Sci 2009. [DOI: 10.1002/app.29213] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hu L, Li X, Liu B, Gu M, Dai J. Organic structure and possible origin of ancient charred paddies at Chuodun Site in southern China. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11430-009-0006-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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