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Li W, Xie P, Zhou H, Zhao H, Yang B, Xiong J. Preparation of Lanthanum-Modified Tea Waste Biochar and Its Adsorption Performance on Fluoride in Water. MATERIALS (BASEL, SWITZERLAND) 2024; 17:766. [PMID: 38591626 PMCID: PMC10856180 DOI: 10.3390/ma17030766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 04/10/2024]
Abstract
In this study, tea waste was used as a raw material, and TBC (tea waste biochar) was prepared by pyrolysis at 700 °C. La(NO3)3·6H2O was used as the modifier to optimize one-way modification; the orthogonal experiment was undertaken to determine the optimal preparation conditions; and La-TBC (lanthanum-modified biochar) was obtained. The key factors for the adsorption of fluoride by La-TBC were investigated by means of batch adsorption experiments, and kinetics and isothermal adsorption experiments were carried out on the adsorption of fluoride in geothermal hot spring water. The adsorption mechanism of fluoride by La-TBC was analyzed via characterization methods such as SEM-EDS (Scanning Electron Microscope and Energy Dispersive Spectrometer), BET (Brunauer-Emmett-Teller), FTIR (Fourier transform infrared), XRD (X-ray diffraction), and so on. The results show that La-TBC had the best adsorption effect on fluoride at pH 7. The process of adsorption of fluoride follows the pseudo-second-order kinetics and Langmuir isothermal model, and the maximum theoretical adsorption quantity was 47.47 mg/g at 80 °C, while the removal rate of fluoride from the actual geothermal hot spring water reached more than 95%. The adsorption process was dominated by the monolayer adsorption of chemicals, and the mechanisms mainly include pore filling, ion exchange, and electrostatic interaction.
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Affiliation(s)
| | | | | | | | | | - Jian Xiong
- School of Ecology and Environment, Tibet University, Lhasa 850012, China; (W.L.); (P.X.); (H.Z.); (H.Z.); (B.Y.)
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Subramanium R, Sathiyamoorthi E, Rajagopal S, Krishnamoorthy R, Lee J, A LK. Synthesis, characterization, and evaluation of fluoride removal capacity of calcium-impregnated Euphorbia neriifolia carbon (Ca-Enc). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-31943-9. [PMID: 38244161 DOI: 10.1007/s11356-024-31943-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/05/2024] [Indexed: 01/22/2024]
Abstract
Fluoride ions must be removed from drinking water in order to prevent fluorosis. Many conventional techniques have been examined for the defluoridation of water all over the world. As far as fluoride ions are concerned, adsorption is the most promising method for the removal of them from aqueous environments. In the present study, we aim to find out how well Euphorbia neriifolia plants can remove fluoride from water using activated and carbonized adsorbents. The Euphorbia neriifolia plant stem was pulverized, dried, and activated using calcium ions extracted from used eggshells collected nearby. The synthesized adsorbent material before and after adsorption of fluoride ions was systematically characterized using FTIR, XRD, SEM with EDAX, TGA, and zero-point charge. The defluoridation capacity of the as-prepared adsorbent material was investigated using batch adsorption studies. Various influencing factors such as contact time, solution pH, initial fluoride concentration, mass of the adsorbent, temperature, and co-existing ions were systematically investigated towards the removal of fluoride ion on prepared adsorbent material. This study was conducted to identify the optimal conditions of prepared adsorbent for the maximum removal of fluoride ions from aqueous solution. A groundwater sample with fluoride content of more than 1.5 ppm was taken and studied in this present work. A basic quality indicator of the synthesized material was examined, and its ability to remove fluoride was determined. The findings provide insight into the selective elimination of fluoride ions from aqueous environment.
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Affiliation(s)
- Rajkumar Subramanium
- Department of Chemistry, SRM Madurai College for Engineering and Technology, Pottapalayam, Sivagangai, 630612, Tamil Nadu, India.
| | | | - Saravanakumar Rajagopal
- Department of Chemistry, Sethu Institute Technology, Viruthunagar, 626115, Tamil Nadu, India
| | | | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - Lakshman Kumar A
- Corrosion Analysis and Research Lab, NTPC Energy Technology Research Alliance (NTPC NETRA), Greater Noida, UP, India
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Jeyaseelan A, Aswin Kumar I, Naushad M, Viswanathan N. Defluoridation using hydroxyapatite implanted lanthanum organic framework-based bio-hybrid beads. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00161f] [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
The present study reports on biopolymer based material namely HAp–La-BTC MOFs@Alg–CS hybrid beads were developed and it was potentially employed for fluoride removal.
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Affiliation(s)
- Antonysamy Jeyaseelan
- Department of Chemistry, Anna University, University College of Engineering – Dindigul, Reddiyarchatram, Dindigul – 624 622, Tamilnadu, India
| | - Ilango Aswin Kumar
- Faculty of Civil Engineering, Department of Landscape and Water Conservation, Czech Technical University in Prague, Thakurova 7, 166 29, Prague 6, Czech Republic
| | - Mu. Naushad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh-11451, Saudi Arabia
| | - Natrayasamy Viswanathan
- Department of Chemistry, Anna University, University College of Engineering – Dindigul, Reddiyarchatram, Dindigul – 624 622, Tamilnadu, India
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Chitosan-zirconia microballs for proficient removal of chromate and phosphate ions from water bodies. J CHEM SCI 2021. [DOI: 10.1007/s12039-021-01975-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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He Y, Huang L, Song B, Wu B, Yan L, Deng H, Yang Z, Yang W, Wang H, Liang Z, Luo J. Defluorination by ion exchange of SO 42- on alumina surface: Adsorption mechanism and kinetics. CHEMOSPHERE 2021; 273:129678. [PMID: 33515960 DOI: 10.1016/j.chemosphere.2021.129678] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 01/09/2021] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Electrostatic and complexation effects have been considered as the primary adsorption mechanisms for defluorination using aluminum based materials, while the effect of ion exchange between anions and fluorine ion has been mostly ignored, although synthesized alumina materials usually contain a large amount of anions, such as SO42-, NO3-, and Cl-. In this study, the effect of anions exchanges and its key role on defluorination were systematically investigated for adsorption by aluminas loaded with various typical anions (SO42-, NO3- and Cl-). Experimental results showed that SO42-- loading alumina had the best defluorination performance (94.5 mg/g), much higher than NO3- (45.0 mg/g) and Cl- (19.1 mg/g). The contribution ratio of ion exchange between SO42- and F- was as high as 20-60% in all potential defluorination mechanisms. By using Density Functional Theory calculation, the detailed mechanism revealed that the ion exchange process was mainly driven by the tridentate chelation of SO42- which reduced the exchange energy ( [Formula: see text] 4.8 eV). Our study clearly demonstrated that ion exchange between SO42- and F- is a critical mechanism in defluorination using aluminum-based materials and provides a potential alternative method to enhance the adsorption performance of modified alumina.
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Affiliation(s)
- Yingjie He
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Lei Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, PR China
| | - Baocheng Song
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Bichao Wu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Lvji Yan
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Haoyu Deng
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China
| | - Zhihui Yang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China; Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Changsha, 410083, PR China
| | - Weichun Yang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China; Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Changsha, 410083, PR China
| | - Haiying Wang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, PR China; Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution, Changsha, 410083, PR China.
| | - Zhengyong Liang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, Henan, PR China.
| | - Jian Luo
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA, 30332-0355, United States.
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Banu HAT, Karthikeyan P, Vigneshwaran S, Meenakshi S. Adsorptive performance of lanthanum encapsulated biopolymer chitosan-kaolin clay hybrid composite for the recovery of nitrate and phosphate from water. Int J Biol Macromol 2020; 154:188-197. [DOI: 10.1016/j.ijbiomac.2020.03.074] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/27/2020] [Accepted: 03/10/2020] [Indexed: 01/10/2023]
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Zhiguo Wang, Wu L, Zhou D, Ji P, Zhou X, Zhang Y, He P. Synthesis and Water Absorbing Properties of KGM-g-P(AA-AM-(DMAEA-EB)) via Grafting Polymerization Method. POLYMER SCIENCE SERIES B 2020. [DOI: 10.1134/s1560090420030185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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The Use of Lanthanum Ions and Chitosan for Boron Elimination from Aqueous Solutions. Polymers (Basel) 2019; 11:polym11040718. [PMID: 31010215 PMCID: PMC6523116 DOI: 10.3390/polym11040718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/07/2019] [Accepted: 04/14/2019] [Indexed: 11/25/2022] Open
Abstract
Boron is an essential element for plants and living organisms; however, it can be harmful if its concentration in the environment is too high. In this paper, lanthanum(III) ions were introduced to the structure of chitosan via an encapsulation technique and the obtained hydrogel (La-CTS) was used for the elimination of the excess of B(III) from modelling solutions. The reaction between boric acid and hydroxyl groups bound to the lanthanum coordinated by chitosan active centres was the preponderant mechanism of the bio-adsorption removal process. The results demonstrated that La-CTS removed boric acid from the aqueous solution more efficiently than either lanthanum hydroxide or native chitosan hydrogel, respectively. When the initial boron concentration was 100 mg/dm3, the maximum adsorption capacity of 11.1 ± 0.3 mg/g was achieved at pH 5 and the adsorption time of 24 h. The successful introduction of La(III) ions to the chitosan backbone was confirmed by Scanning Electron Microscopy with Energy Dispersive X-Ray Spectroscopy, Fourier-Transform Infrared Spectroscopy, X-Ray Diffraction, X-ray Photoelectron Spectroscopy, and Inductively Coupled Plasma Optical Emission Spectroscopy. Due to its high-performance boron adsorption-desorption cycle and convenient form, La-CTS seems to be a promising bio-adsorbent for water treatment.
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Karthikeyan P, Banu HAT, Meenakshi S. Removal of phosphate and nitrate ions from aqueous solution using La3+ incorporated chitosan biopolymeric matrix membrane. Int J Biol Macromol 2019; 124:492-504. [DOI: 10.1016/j.ijbiomac.2018.11.127] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/31/2018] [Accepted: 11/13/2018] [Indexed: 11/17/2022]
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Wang J, Chen N, Feng C, Li M. Performance and mechanism of fluoride adsorption from groundwater by lanthanum-modified pomelo peel biochar. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:15326-15335. [PMID: 29560595 DOI: 10.1007/s11356-018-1727-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 03/12/2018] [Indexed: 06/08/2023]
Abstract
To obtain an economical and effective adsorbent for fluoride removal, lanthanum-loaded pomelo peel biochar (PPBC-La) was synthesized using a facile approach. The batch adsorption experiments were investigated to determine adsorbent performance. The PPBC-La and its pristine biochar (PPBC) were characterized by scanning electronic microscopy (SEM), zeta potential, Brunauer-Emmett-Teller (BET), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) methods. Experimental results showed that the adsorption data were described well by the pseudo-second-order kinetic and Freundlich isotherm models. The maximum fluoride adsorption capacity for PPBC-La was found to be 19.86 mg/g at 25 °C and pH 6.5. The PPBC-La worked well at pH 2.4-9.6 and carried positive charge at pH < 5.8. The presence of SO42-, Cl-, and NO3- had a slight effect on fluoride uptake except HCO3- and PO43-. The real groundwater study testified that 9.8 mg/L of fluoride was removed effectively at 1.0 g/L of dosage and pH 5.2. The regeneration results revealed that the PPBC-La had a good reusability. According to FTIR, XPS analysis and the anion exchange experiment, anions (NO3- and OH-) exchange with fluoride ions was mainly responsible for fluoride adsorption.
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Affiliation(s)
- Jianguo Wang
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China
| | - Nan Chen
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China.
- Key Laboratory of Groundwater Cycle and Environment Evolution (China University of Geosciences (Beijing)), Ministry of Education, Beijing, 100083, China.
| | - Chuanping Feng
- School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing, 100083, China
- Key Laboratory of Groundwater Cycle and Environment Evolution (China University of Geosciences (Beijing)), Ministry of Education, Beijing, 100083, China
| | - Miao Li
- School of Environment, Tsinghua University, Beijing, 100084, China
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Periyasamy S, Viswanathan N. Hydrothermal synthesis of hydrocalumite assisted biopolymeric hybrid composites for efficient Cr(vi) removal from water. NEW J CHEM 2018. [DOI: 10.1039/c7nj04524g] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hydrocalumite (HC) incorporated biopolymer (alginate and chitosan) based hybrid composite materials were developed for the selective removal of chromium.
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Affiliation(s)
- Soodamani Periyasamy
- Department of Chemistry
- Anna University
- University College of Engineering
- Dindigul
- India
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