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Duan Q, Yang T, Chen J, Liu J, Gao L, Zhang J, Lin S. Ba-modified peanut shell biochar (PSB): preparation and adsorption of Pb(II) from water. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:1795-1820. [PMID: 37830997 PMCID: wst_2023_305 DOI: 10.2166/wst.2023.305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
The impact of Ba-modified peanut shell biochar (Ba-PSB) on Pb(II) removal was studied and BaCl2 was used as a modifier. It was shown that the PSB obtained at 750 °C had the best adsorption effect, and the Ba-PSB had a larger specific surface area and a good adsorption effect on Pb(II). At pH = 5, concentration was 400 mg/L, time was 14 h, and temperature was 55 °C, the loading amount of black peanut shell biochar (BPSB), red peanut shell biochar (RPSB), Ba-BPSB, and Ba-RPSB reached 128.050, 98.217, 379.330, and 364.910 mg/g, respectively. In addition, based on the non-linear fitting, it was found that the quasi-second-order kinetic model, and isothermal model could be applied to describe Pb(II) adsorption on PSB and Ba-PSB. The adsorption behavior of PSB unmodified and modified was a spontaneous process. Moreover, chemical modification of BPSB, RPSB, Ba-BPSB, and Ba-RPSB for hindering of -COOH and -OH groups revealed 81.81, 77.08, 86.90, and 83.65% removal of Pb(II), respectively, which was due to the participation of -COOH, while 17.61, 21.70, 12.77, and 15.06% was from -OH group, respectively. The increase of cation strength (Na+, K+, Ca2+, and Mg2+) will reduce the adsorption capacity of PSB for Pb(II).
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Affiliation(s)
- Qianqian Duan
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiudadao, Hefei 230601, China E-mail:
| | - Tianrui Yang
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiudadao, Hefei 230601, China
| | - Jingyi Chen
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiudadao, Hefei 230601, China
| | - Junsheng Liu
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiudadao, Hefei 230601, China
| | - Liping Gao
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiudadao, Hefei 230601, China
| | - Junfei Zhang
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiudadao, Hefei 230601, China
| | - Shitao Lin
- School of Energy, Materials and Chemical Engineering, Hefei University, 99 Jinxiudadao, Hefei 230601, China
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Emam HE, Ahmed HB, El-Shahat M, Abdel-Gawad H, Abdelhameed RM. Selective separation of chlorophyll-a using recyclable hybrids based on Zn-MOF@cellulosic fibers. Sci Rep 2023; 13:15208. [PMID: 37709829 PMCID: PMC10502031 DOI: 10.1038/s41598-023-42151-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 09/06/2023] [Indexed: 09/16/2023] Open
Abstract
Chlorophyll-a as pigments, exist in the green organelles for plants that act in photosynthesis. Different studies were considered with demonstration of an effective separation technique of Chlorophyll-a without decomposition; however, the reported methods were disadvantageous with expensiveness and low quantum yield. The current work uniquely represents an investigative method for the separation of Chlorophyll-a from spinach extract using cellulosic hybrids based on ZIF-8 @cellulosic fibers (Zn-zeolitic imidazolate frameworks@cellulosic fibers) as a cost effective and recyclable absorbents. To obtain hybrids, ZIF-8 was in-situ prepared over the cellulosic fibers (bamboo, modal and cotton). The untreated and treated fibers were well characterized via FTIR, SEM, EDX, XRD, in order to approve the successive impregnation of ZIF-8. Whereas, the microscopic images showed that, microcrystalline ZIF-8 rods with length of 1.3-4.4 µm were grown over the cellulosic fibers. The obtained hybrids and the untreated fibers were exploited in the separation of Chlorophyll-a via the adsorption/desorption process. The chlorophyll-adsorption was followed Langmuir isotherm and pseudo-second order model. The Langmuir maximum capacities of Chlorophyll-a onto hybrids were followed the order of ZIF-8@cotton (583.6 mg/g) > ZIF-8@modal (561.3 mg/g) > ZIF-8@bamboo (528.7 mg/g). After incorporation of ZIF-8, the maximum adsorption capacities of cellulosic fibers were enhanced by 1.4-1.9 times. Adsorption of chlorophyll onto the applied hybrids was lowered by 27-28%, after five repetitive washing cycles. The data summarized that; chlorophyll was effectively separated by the synthesized ZIF-8@cellulosic fibers hybrids, whereas, the prepared hybrids showed good reusability for application on wider scaled purposes.
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Affiliation(s)
- Hossam E Emam
- Department of Pretreatment and Finishing of Cellulosic Based Textiles, Textile Research and Technology Institute, National Research Centre, Scopus Affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt.
| | - Hanan B Ahmed
- Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Cairo, 11795, Egypt.
| | - Mahmoud El-Shahat
- Photochemistry Department, Chemical Industries Research Institute, National Research Centre, Scopus Affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt
| | - Hassan Abdel-Gawad
- Applied Organic Chemistry Department, Chemical Industries Research Institute, National Research Centre, Scopus Affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt
| | - Reda M Abdelhameed
- Applied Organic Chemistry Department, Chemical Industries Research Institute, National Research Centre, Scopus Affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt.
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Emam HE, Abdelhameed RM. Separation of anthocyanin from roselle extract by cationic nano-rode ZIF-8 constructed using removable template. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Extracts of Peanut Skins as a Source of Bioactive Compounds: Methodology and Applications. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10238546] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Peanut skins are a waste product of the peanut processing industry with little commercial value. They are also significant sources of the polyphenolic compounds that are noted for their bioactivity. The extraction procedures for these compounds range from simple single solvent extracts to sophisticated separation schemes to isolate and identify the large range of compounds present. To take advantage of the bioactivities attributed to the polyphenols present, a range of products both edible and nonedible containing peanut skin extracts have been developed. This review presents the range of studies to date that are dedicated to extracting these compounds from peanut skins and their various applications.
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Pismenskaya N, Sarapulova V, Klevtsova A, Mikhaylin S, Bazinet L. Adsorption of Anthocyanins by Cation and Anion Exchange Resins with Aromatic and Aliphatic Polymer Matrices. Int J Mol Sci 2020; 21:ijms21217874. [PMID: 33114195 PMCID: PMC7660631 DOI: 10.3390/ijms21217874] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 01/06/2023] Open
Abstract
This study examines the mechanisms of adsorption of anthocyanins from model aqueous solutions at pH values of 3, 6, and 9 by ion-exchange resins making the main component of heterogeneous ion-exchange membranes. This is the first report demonstrating that the pH of the internal solution of a KU-2-8 aromatic cation-exchange resin is 2-3 units lower than the pH of the external bathing anthocyanin-containing solution, and the pH of the internal solution of some anion-exchange resins with an aromatic (AV-17-8, AV-17-2P) or aliphatic (EDE-10P) matrix is 2-4 units higher than the pH of the external solution. This pH shift is caused by the Donnan exclusion of hydroxyl ions (in the KU-2-8 resin) or protons (in the AV-17-8, AV-17-2P, and EDE-10P resins). The most significant pH shift is observed for the EDE-10P resin, which has the highest ion-exchange capacity causing the highest Donnan exclusion. Due to the pH shift, the electric charge of anthocyanin inside an ion-exchange resin differs from its charge in the external solution. At pH 6, the external solution contains uncharged anthocyanin molecules. However, in the AV-17-8 and AV-17-2P resins, the anthocyanins are present as singly charged anions, while in the EDE-10P resin, they are in the form of doubly charged anions. Due to the electrostatic interactions of these anions with the positively charged fixed groups of anion-exchange resins, the adsorption capacities of AV-17-8, AV-17-2P, and EDE-10P were higher than expected. It was established that the electrostatic interactions of anthocyanins with the charged fixed groups increase the adsorption capacity of the aromatic resin by a factor of 1.8-2.5 compared to the adsorption caused by the π-π (stacking) interactions. These results provide new insights into the fouling mechanism of ion-exchange materials by polyphenols; they can help develop strategies for membrane cleaning and for extracting anthocyanins from juices and wine using ion-exchange resins and membranes.
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Affiliation(s)
- Natalia Pismenskaya
- Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (V.S.); (A.K.)
- Correspondence: ; Tel.: +7-918-48-91-292
| | - Veronika Sarapulova
- Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (V.S.); (A.K.)
| | - Anastasia Klevtsova
- Kuban State University, 149 Stavropolskaya st., 350040 Krasnodar, Russia; (V.S.); (A.K.)
| | - Sergey Mikhaylin
- Department of Food Sciences, Institute of Nutrition and Functional Foods (INAF), Laboratory of Food Processing and ElectroMembrane Process (LTAPEM), University Laval, Québec, QC G1V, Canada; (S.M.); (L.B.)
| | - Laurent Bazinet
- Department of Food Sciences, Institute of Nutrition and Functional Foods (INAF), Laboratory of Food Processing and ElectroMembrane Process (LTAPEM), University Laval, Québec, QC G1V, Canada; (S.M.); (L.B.)
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Enrichment of polymethoxyflavones from Citrus reticulata ‘Chachi’ peels and their hypolipidemic effect. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1124:226-232. [DOI: 10.1016/j.jchromb.2019.06.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/29/2019] [Accepted: 06/06/2019] [Indexed: 01/21/2023]
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Study of physicochemical stability of anthocyanin extracts from black peanut skin and their digestion enzyme and adipogenesis inhibitory activities. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.03.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Zhang P, Wang L, Fang S. Modeling of the Adsorption/Desorption Characteristics and Properties of Anthocyanins from Extruded Red Cabbage Juice by Macroporous Adsorbent Resin. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2019. [DOI: 10.1515/ijfe-2018-0239] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AbstractThe adsorption/desorption characteristics, modeling and properties of anthocyanins from extruded red cabbage juice by macroporous resins were investigated. The static adsorption and desorption capacities of red cabbage anthocyanins on five macroporous resins were measured and compared. The X-5 resin showed the best capacities and was selected for the adsorption kinetics, isotherms and elution studies. The pseudo-second-order kinetic model and Langmuir isotherm model were used to describe the adsorption process and mechanism. Dynamic adsorption and desorption tests were performed on a fixed-bed column, and the loading and eluent conditions were optimized. The purity of anthocyanins in freeze-dried purified powder by the resin adsorption process is 21.3 ± 0.9 wt % and shows better stability in the air than the unpurified one. Finally, the antioxidant activity and color properties including color density, color intensity, color tonality and degradation index of the purified powders were measured.
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Affiliation(s)
- Pingjing Zhang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xuezheng Street No. 18, Hangzhou310018, China
| | - Liping Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xuezheng Street No. 18, Hangzhou310018, China
| | - Sheng Fang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Xuezheng Street No. 18, Hangzhou310018, China
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Characterization and purification of anthocyanins from black peanut ( Arachis hypogaea L.) skin by combined column chromatography. J Chromatogr A 2017; 1519:74-82. [DOI: 10.1016/j.chroma.2017.08.078] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 07/22/2017] [Accepted: 08/24/2017] [Indexed: 11/19/2022]
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Soldatkina L, Novotna V. Removal of anthocyanins from aqueous berry extracts by adsorption on bentonite: Factorial design analysis. ADSORPT SCI TECHNOL 2017. [DOI: 10.1177/0263617417722252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Liudmyla Soldatkina
- Faculty of Chemistry, Odessa I.I. Mechnikov National University, Odessa, Ukraine
| | - Victoria Novotna
- Faculty of Chemistry, Odessa I.I. Mechnikov National University, Odessa, Ukraine
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