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Li Z, Qiu Y, Zhao D, Li J, Li G, Jia H, Du D, Dang Z, Lu G, Li X, Yang C, Kong L. Application of apatite particles for remediation of contaminated soil and groundwater: A review and perspectives. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166918. [PMID: 37689195 DOI: 10.1016/j.scitotenv.2023.166918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 08/14/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023]
Abstract
With rapid industrial development and population growth, the pollution of soil and groundwater has become a critical concern all over the world. Yet, remediation of contaminated soil and water remains a major challenge. In recent years, apatite has gained a surging interest in environmental remediation because of its high treatment efficiency, low cost, and environmental benignity. This review summarizes recent advances in: (1) natural apatite of phosphate ores and biological source; (2) synthesis of engineered apatite particles (including stabilized or surface-modified apatite nanoparticles); (3) treatment effectiveness of apatite towards various environmental pollutants in soil and groundwater, including heavy metals (e.g., Pb, Zn, Cu, Cd, and Ni), inorganic anions (e.g., As oxyanions and F-), radionuclides (e.g., thorium (Th), strontium (Sr), and uranium (U)), and organic pollutants (e.g., antibiotics, dyes, and pesticides); and (4) the removal and/or interaction mechanisms of apatite towards the different contaminants. Lastly, the knowledge or technology gaps are identified and future research needs are proposed.
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Affiliation(s)
- Zhiliang Li
- School of Emergency Management, Jiangsu University, Zhenjiang 212013, PR China; Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China; The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Yi Qiu
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Dongye Zhao
- Department of Civil, Construction and Environmental Engineering, San Diego State University, San Diego, CA 92182-1324, USA.
| | - Jian Li
- School of Emergency Management, Jiangsu University, Zhenjiang 212013, PR China; Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Guanlin Li
- School of Emergency Management, Jiangsu University, Zhenjiang 212013, PR China; Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Hui Jia
- School of Emergency Management, Jiangsu University, Zhenjiang 212013, PR China; Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Daolin Du
- School of Emergency Management, Jiangsu University, Zhenjiang 212013, PR China; Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhi Dang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Guining Lu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Xiaofei Li
- School of Environmental and Chemical Engineering, Foshan University, Foshan 528000, PR China
| | - Chengfang Yang
- College of Environmental Engineering, Xuzhou University of Technology, Xuzhou 221018, PR China
| | - Linjun Kong
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
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Selective fluoride removal on LaHAP/3D-rGO composite electrode by capacitive deionization. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jeyaseelan A, Aswin Kumar I, Viswanathan N, Naushad M. Development and characterization of hydroxyapatite layered lanthanum organic frameworks by template method for defluoridation of water. J Colloid Interface Sci 2022; 622:228-238. [DOI: 10.1016/j.jcis.2022.04.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 04/12/2022] [Accepted: 04/17/2022] [Indexed: 01/15/2023]
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Wallace AR, Su C, Sun W. Adsorptive Removal of Fluoride from Water Using Nanomaterials of Ferrihydrite, Apatite, and Brucite: Batch and Column Studies. ENVIRONMENTAL ENGINEERING SCIENCE 2019; 36:634-642. [PMID: 32704229 PMCID: PMC7376914 DOI: 10.1089/ees.2018.0438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study investigated the adsorptive removal of fluoride from simulated water pollution using various (hydro)oxide nanomaterials, which have the potential to be used as sorbents for surface water and groundwater remediation. Tested nanomaterials include hematite, magnetite, ferrihydrite, goethite, hematite-alpha, hydroxyapatite (HAP), brucite, and four titanium dioxides (TiO2-A [anatase], TiO2-B [rutile], TiO2-C [rutile], and TiO2-D [anatase]). Among 11 (hydro)oxide nanomaterials tested in this study, ferrihydrite, HAP, and brucite showed two to five times higher removal of fluoride than other nanomaterials from synthetic fluoride solutions. Freundlich and Redlich-Peterson adsorption isotherms better described the adsorptive capacity and mechanism than the Langmuir isotherm based on higher R 2 values, indicating better fit of the regression predictions. In addition, the adsorption kinetics were well described by the intraparticle diffusion model. Column studies in a fixed bed continuous flow through system were conducted to illustrate the adsorption and desorption behavior of fluoride on ferrihydrite, HAP, or brucite. Experimental results fitted well with the Thomas model because of the R 2 values at least 0.885 or higher. By comparisons of the adsorption capacity and the rate constant, columns packed with ferrihydrite exhibited not only faster rates but also higher sorption capacity than those packed with HAP or brucite. Desorption tests in deionized water showed that the adsorbed fluoride could be desorbed at a lower efficiency, ranging from 4.0% to 8.9%. The study implicated that (hydro)oxide nanomaterials of iron calcium and magnesium could be effective sorptive materials incorporated into filtration systems for the remediation of fluoride polluted water.
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Affiliation(s)
- Anna Rose Wallace
- Corresponding author: Department of Civil and Environmental Engineering, Southern Methodist University, 3101 Dyer Street, Room 203, Dallas, TX 75275. Phone: (360) 520 6281; Fax: (214) 768 2164;
| | - Chunming Su
- Groundwater, Watershed, and Ecosystem Restoration Division, National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Ada, Oklahoma
| | - Wenjie Sun
- Department of Civil and Environmental Engineering, Southern Methodist University, Dallas, Texas
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Maity JP, Hsu CM, Lin TJ, Lee WC, Bhattacharya P, Bundschuh J, Chen CY. Removal of fluoride from water through bacterial-surfactin mediated novel hydroxyapatite nanoparticle and its efficiency assessment: Adsorption isotherm, adsorption kinetic and adsorption Thermodynamics. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.enmm.2017.11.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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He J, Li Y, Cai X, Chen K, Zheng H, Wang C, Zhang K, Lin D, Kong L, Liu J. Study on the removal of organic micropollutants from aqueous and ethanol solutions by HAP membranes with tunable hydrophilicity and hydrophobicity. CHEMOSPHERE 2017; 174:380-389. [PMID: 28187384 DOI: 10.1016/j.chemosphere.2017.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/30/2017] [Accepted: 02/02/2017] [Indexed: 06/06/2023]
Abstract
A biocompatible and uniquely defined hydroxyapatite (HAP) adsorption membrane with a sandwich structure was developed for the removal of organic micropollutants for the first time. Both the adsorption and membrane technique were used for the removal of organic micropollutants. The hydrophilicity and hydrophobicity of the HAP adsorbent and membrane were tunable by controlling the surface structure of HAP. The adsorption of organic micropollutants on the HAP adsorbent was studied in batch experiments. The adsorption process was fit with the Freundlich model, while the adsorption kinetics followed the pseudo-second-order model. The HAP membrane could remove organic micropollutants effectively by dynamic adsorption in both aqueous and ethanol solutions. The removal efficiencies of organic micropollutants depended on the solution composition, membrane thickness and hydrophilicity, flow rate, and the initial concentration of organic micropollutants. The adsorption capacities of the HAP membrane with a sandwich structure (membrane thickness was 0.3 mm) were 6700, 6510, 6310, 5960, 5490, 5230, 4980 and 4360 L m-2 for 1-naphthyl amine, 2-naphthol, bisphenol S, propranolol hydrochloride, metolachlor, ethinyl oestradiol, 2,4-dichlorophenol and bisphenol A, respectively, when the initial concentration was 3.0 mg L-1. The biocompatible HAP adsorption membrane can be easily regenerated by methanol and was thus demonstrated to be a novel concept for the removal of organic micropollutants from both aqueous and organic solutions.
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Affiliation(s)
- Junyong He
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Yulian Li
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Xingguo Cai
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Kai Chen
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Hejing Zheng
- Anhui Loongsec Technology Co., Lid, Hefei, Anhui 230026, PR China
| | - Chengming Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Kaisheng Zhang
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Dongyue Lin
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China
| | - Lingtao Kong
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China.
| | - Jinhuai Liu
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China
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He J, Chen K, Cai X, Li Y, Wang C, Zhang K, Jin Z, Meng F, Wang X, Kong L, Liu J. A biocompatible and novelly-defined Al-HAP adsorption membrane for highly effective removal of fluoride from drinking water. J Colloid Interface Sci 2017; 490:97-107. [DOI: 10.1016/j.jcis.2016.11.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 11/01/2016] [Accepted: 11/02/2016] [Indexed: 11/28/2022]
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Hammari LE, Laghzizil A, Saoiabi A, Barboux P, Meyer M, Brandès S, Guilard R. Some Factors Affecting the Removal of Lead(II) Ions from Aqueous Solution by Porous Calcium Hydroxyapatite: Relationships between Surface and Adsorption Properties. ADSORPT SCI TECHNOL 2016. [DOI: 10.1260/026361706780154419] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Larbi El Hammari
- Laboratoire de Chimie Physique Générale, Faculté des Sciences, Université Mohammed V, Agdal, BP 1014, Rabat, Morocco
| | - Abdelaziz Laghzizil
- Laboratoire de Chimie Physique Générale, Faculté des Sciences, Université Mohammed V, Agdal, BP 1014, Rabat, Morocco
| | - Ahmed Saoiabi
- Laboratoire de Chimie Physique Générale, Faculté des Sciences, Université Mohammed V, Agdal, BP 1014, Rabat, Morocco
| | - Philippe Barboux
- Laboratoire de Chimie de la Matière Condensée, ENSCP-CNRS UMR 7574, 11 Rue Pierre et Marie Curie, 75005 Paris, France
| | - Michel Meyer
- Institut de Chimie Moleculaire de l'Universite de Bourgogne, ICMUB-CNRS UMR 5260, 9 Avenue Alain Savary, B.P. 47870, 21078 Dijon Cedex, France
| | - Stéphane Brandès
- Institut de Chimie Moleculaire de l'Universite de Bourgogne, ICMUB-CNRS UMR 5260, 9 Avenue Alain Savary, B.P. 47870, 21078 Dijon Cedex, France
| | - Roger Guilard
- Institut de Chimie Moleculaire de l'Universite de Bourgogne, ICMUB-CNRS UMR 5260, 9 Avenue Alain Savary, B.P. 47870, 21078 Dijon Cedex, France
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He J, Zhang K, Wu S, Cai X, Chen K, Li Y, Sun B, Jia Y, Meng F, Jin Z, Kong L, Liu J. Performance of novel hydroxyapatite nanowires in treatment of fluoride contaminated water. JOURNAL OF HAZARDOUS MATERIALS 2016; 303:119-30. [PMID: 26530888 DOI: 10.1016/j.jhazmat.2015.10.028] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 10/01/2015] [Accepted: 10/13/2015] [Indexed: 05/21/2023]
Abstract
Novel ultralong hydroxyapatite (HAP) nanowires were successfully prepared for fluoride removal for the first time. The fluoride adsorption on the HAP nanowires was studied on a batch mode. The results revealed that the adsorption data could be well described by the Freundlich model, and the adsorption kinetic followed the pseudo-second-order model. The maximum of adsorption capacity was 40.65 mg/g at pH 7.0 when the fluoride concentration is 200mg/L. The thermodynamic parameters suggested that the adsorption of fluoride was a spontaneous endothermic process. The FT-IR, XPS and Zeta potential analysis revealed that both anion exchange and electrostatic interactions were involved in the adsorption of fluoride. Furthermore, the HAP nanowires were made into HAP membrane through a simple process of suction filtration. Membrane filtration experiments revealed that the fluoride removal capabilities depended on the membrane thickness, flow rate and initial concentration of fluoride. The as-prepared membrane could remove fluoride efficiently through continues filtration. The filtered water amount could reach 350, 192, and 64 L/m(2) when the fluoride concentrations were 4, 5 and 8 ppm, respectively, using the HAP membrane with only 150 μm thickness. The as-synthesized ultralong HAP nanowires were thus demonstrated to be very effective and biocompatible adsorbents for fluoride removal from contaminated water.
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Affiliation(s)
- Junyong He
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Kaisheng Zhang
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Shibiao Wu
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Xingguo Cai
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Kai Chen
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Yulian Li
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China; Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Bai Sun
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Yong Jia
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Fanli Meng
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Zhen Jin
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Lingtao Kong
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China.
| | - Jinhuai Liu
- Nano-Materials and Environmental Detection Laboratory, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
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Sani T, Gómez-Hortigüela L, Pérez-Pariente J, Chebude Y, Díaz I. Defluoridation performance of nano-hydroxyapatite/stilbite composite compared with bone char. Sep Purif Technol 2016. [DOI: 10.1016/j.seppur.2015.11.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mourabet M, El Rhilassi A, El Boujaady H, Bennani-Ziatni M, El Hamri R, Taitai A. Removal of fluoride from aqueous solution by adsorption on hydroxyapatite (HAp) using response surface methodology. JOURNAL OF SAUDI CHEMICAL SOCIETY 2015. [DOI: 10.1016/j.jscs.2012.03.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Electrodeposited apatite coating for solid-phase microextraction and sensitive indirect voltammetric determination of fluoride ions. Talanta 2013; 115:500-5. [DOI: 10.1016/j.talanta.2013.06.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 06/06/2013] [Accepted: 06/10/2013] [Indexed: 11/22/2022]
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Loganathan P, Vigneswaran S, Kandasamy J, Naidu R. Defluoridation of drinking water using adsorption processes. JOURNAL OF HAZARDOUS MATERIALS 2013; 248-249:1-19. [PMID: 23352905 DOI: 10.1016/j.jhazmat.2012.12.043] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 12/18/2012] [Accepted: 12/26/2012] [Indexed: 05/05/2023]
Abstract
Excessive intake of fluoride (F), mainly through drinking water, is a serious health hazard affecting humans worldwide. There are several methods used for the defluoridation of drinking water, of which adsorption processes are generally considered attractive because of their effectiveness, convenience, ease of operation, simplicity of design, and for economic and environmental reasons. In this paper, we present a comprehensive and a critical literature review on various adsorbents used for defluoridation, their relative effectiveness, mechanisms and thermodynamics of adsorption, and suggestions are made on choice of adsorbents for various circumstances. Effects of pH, temperature, kinetics and co-existing anions on F adsorption are also reviewed. Because the adsorption is very weak in extremely low or high pHs, depending on the adsorbent, acids or alkalis are used to desorb F and regenerate the adsorbents. However, adsorption capacity generally decreases with repeated use of the regenerated adsorbent. Future research needs to explore highly efficient, low cost adsorbents that can be easily regenerated for reuse over several cycles of operations without significant loss of adsorptive capacity and which have good hydraulic conductivity to prevent filter clogging during the fixed-bed treatment process.
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Affiliation(s)
- Paripurnanda Loganathan
- Faculty of Engineering and Information Technology, University of Technology, Sydney, NSW, 2007, Australia
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Saoiabi S, Laghzizil A, Lahlil K, Zrineh A. Interaction of metal(II)-tetra(4-sulfonatophenyl) porphyrins with porous hydroxyapatite surfaces. J Taiwan Inst Chem Eng 2012. [DOI: 10.1016/j.jtice.2012.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sternitzke V, Kaegi R, Audinot JN, Lewin E, Hering JG, Johnson CA. Uptake of fluoride from aqueous solution on nano-sized hydroxyapatite: examination of a fluoridated surface layer. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:802-9. [PMID: 22142334 DOI: 10.1021/es202750t] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Hydroxyapatite (Ca(10)(PO(4))(6)(OH)(2), HAP), both as a synthetic material and as a constituent of bone char, can serve as an effective and relatively inexpensive filter material for fluoride (F(-)) removal from drinking water in low-income countries. Fluoride uptake on HAP can occur through different mechanisms, which are, in principle, influenced by solution composition. Suspensions of HAP (2 g L(-1)) were equilibrated under controlled pH conditions (pH 6.5, 7.3, 9.5) at 25 °C for 28 d after the addition of different F(-) concentrations (0.5-7.0 mM). The reacted HAP solids were examined with Transmission Electron Microscopy (TEM), Fourier Transform Infrared Spectroscopy (FTIR), X-ray Photoelectron Spectroscopy (XPS), and Nano Secondary Ion Mass Spectroscopy (NanoSIMS). Fluoride uptake on HAP was dependent on pH, with the highest capacity at pH 6.5; the lowest uptake was found at pH 9.5. Under all experimental conditions, the thermodynamically stable mineral phase was fluorapatite, (Ca(10)(PO(4))(6)F(2), FAP). Fluoride uptake capacity was quantified on the basis of FTIR and XPS analysis, which was consistent with F(-) uptake from solution. The results of XPS and NanoSIMS analyses indicate that a fluoridated surface layer with a thickness of several nanometers is formed on nanosized HAP.
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Affiliation(s)
- Vanessa Sternitzke
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Duebendorf, Switzerland.
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Jauregui-Osoro M, Williamson PA, Glaria A, Sunassee K, Charoenphun P, Green MA, Mullen GED, Blower PJ. Biocompatible inorganic nanoparticles for [18F]-fluoride binding with applications in PET imaging. Dalton Trans 2011; 40:6226-37. [PMID: 21394352 DOI: 10.1039/c0dt01618g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A wide selection of insoluble nanoparticulate metal salts was screened for avid binding of [(18)F]-fluoride. Hydroxyapatite and aluminium hydroxide nanoparticles showed particularly avid and stable binding of [(18)F]-fluoride in various biological media. The in vivo behaviour of the [(18)F]-labelled hydroxyapatite and aluminium hydroxide particles was determined by PET-CT imaging in mice. [(18)F]-labelled hydroxyapatite was stable in circulation and when trapped in various tissues (lung embolisation, Subcutaneous and intramuscular), but accumulation in liver via reticuloendothelial clearance was followed by gradual degradation and release of [(18)F]-fluoride (over a period of 4 h) which accumulated in bone. [(18)F]-labelled aluminium hydroxide was also cleared to liver and spleen but degraded slightly even without liver uptake (Subcutaneous and intramuscular). Both materials have properties that are an attractive basis for the design of molecular targeted PET imaging agents labelled with (18)F.
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Affiliation(s)
- Maite Jauregui-Osoro
- Division of Imaging Sciences, King's College London, St. Thomas' Hospital, London, UK SE1 7EH
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Bouyarmane H, El Asri S, Rami A, Roux C, Mahly MA, Saoiabi A, Coradin T, Laghzizil A. Pyridine and phenol removal using natural and synthetic apatites as low cost sorbents: influence of porosity and surface interactions. JOURNAL OF HAZARDOUS MATERIALS 2010; 181:736-41. [PMID: 20570437 DOI: 10.1016/j.jhazmat.2010.05.074] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 05/04/2010] [Accepted: 05/14/2010] [Indexed: 05/12/2023]
Abstract
A natural phosphate rock and two synthetic mesoporous hydroxyapatites were evaluated for the removal of pyridine and phenol from aqueous solutions. Experiments performed by the batch method showed that the sorption process occurs by a first order reaction for both pyridine and phenol. In contrast, the Freundlich model was able to describe sorption isotherms for phenol but not for pyridine. In parallel, the three apatites exhibit similar pyridine sorption capacities whereas phenol loading was in agreement with their respective specific surface area. This was attributed to the strong interaction arising between pyridine and apatite surface that hinders further inter-particular diffusion. This study suggests that, despite its low specific surface area, natural phosphate rock may be used as an efficient sorbent material for specific organic pollutants, with comparable efficiency and lower processing costs than some activated carbons.
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Affiliation(s)
- H Bouyarmane
- Université Mohamed V, Faculté des Sciences, Rabat, Morocco
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Alteration of dentin-enamel mechanical properties due to dental whitening treatments. J Mech Behav Biomed Mater 2010; 3:339-46. [PMID: 20346902 DOI: 10.1016/j.jmbbm.2010.01.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Revised: 01/25/2010] [Accepted: 01/28/2010] [Indexed: 11/21/2022]
Abstract
The mechanical properties of dentin and enamel affect the reliability and wear properties of a tooth. This study investigated the influence of clinical dental treatments and procedures, such as whitening treatments or etching prior to restorative procedures. Both autoclaved and non-autoclaved teeth were studied in order to allow for both comparison with published values and improved clinical relevance. Nanoindentation analysis with the Oliver-Pharr model provided elastic modulus and hardness across the dentin-enamel junction (DEJ). Large increases were observed in the elastic modulus of enamel in teeth that had been autoclaved (52.0 GPa versus 113.4 GPa), while smaller increases were observed in the dentin (17.9 GPa versus 27.9 GPa). Likewise, there was an increase in the hardness of enamel (2.0 GPa versus 4.3 GPa) and dentin (0.5 GPa versus 0.7 GPa) with autoclaving. These changes suggested that the range of elastic modulus and hardness values previously reported in the literature may be partially due to the sterilization procedures. Treatment of the exterior of non-autoclaved teeth with Crest Whitestrips, Opalescence or UltraEtch caused changes in the mechanical properties of both the enamel and dentin. Those treated with Crest Whitestrips showed a reduction in the elastic modulus of enamel (55.3 GPa to 32.7 GPa) and increase in the elastic modulus of dentin (17.2 GPa to 24.3 GPa). Opalescence treatments did not significantly affect the enamel properties, but did result in a decrease in the modulus of dentin (18.5 GPa to 15.1 GPa). Additionally, as expected, UltraEtch treatment decreased the modulus and hardness of enamel (48.7 GPa to 38.0 GPa and 1.9 GPa to 1.5 GPa, respectively) and dentin (21.4 GPa to 15.0 GPa and 1.9 GPa to 1.5 GPa, respectively). Changes in the mechanical properties were linked to altered protein concentration within the tooth, as evidenced by fluorescence microscopy and Fourier transform infrared spectroscopy.
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Anunziata OA, Martínez ML, Beltramone AR. Hydroxyapatite/MCM-41 and SBA-15 Nano-Composites: Preparation, Characterization and Applications. MATERIALS 2009. [PMCID: PMC5513383 DOI: 10.3390/ma2041508] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Composites of hydroxyapatite (HaP) and highly ordered large pore mesoporous silica molecular sieves such as, Al-SBA-15 and Al-MCM-41 (denoted as SBA-15 and MCM-41, respectively) were developed, characterized by XRD, BET, FTIR, HRTEM and NMR-MAS, and applied to fluoride retention from contaminated water. The proposed procedure by a new route to prepare the HaP/SBA-15 and HaP/MCM-41, composites generates materials with aluminum only in tetrahedral coordination, according to the 27Al NMR-MAS results. Free OH- groups of HaP nanocrystals, within the hosts, allowed high capacity fluoride retention. The activity of fluoride retention using HaP/MCM-41 or HaP/SBA-15 was 1-2 orders of magnitude greater, respectively, than with pure HaP.
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Affiliation(s)
- Oscar A. Anunziata
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +54-351-46905285; Fax: +54-351-46905285
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Bahdod A, El Asri S, Saoiabi A, Coradin T, Laghzizil A. Adsorption of phenol from an aqueous solution by selected apatite adsorbents: kinetic process and impact of the surface properties. WATER RESEARCH 2009; 43:313-318. [PMID: 18986672 DOI: 10.1016/j.watres.2008.10.023] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2008] [Revised: 10/09/2008] [Accepted: 10/10/2008] [Indexed: 05/27/2023]
Abstract
Batch adsorption experiments were conducted to investigate the removal of phenol from wastewater by addition of three apatites (porous hydroxyapatite (PHAp) and crystalline hydroxyl- (HAp) and fluoroapatite (FAp)). The best performances were obtained with porous hydroxyapatite PHAp, which presented higher adsorption capacities (experimental: 8.2mgg(-1); calculated 9.2mgg(-1)) than HAp and FAp (3-4mgg(-1)). Different models of adsorption were used to describe the kinetics data, to calculate corresponding rate constants and to predict the theoretical capacities of apatite surfaces for phenol adsorption. A mechanism of phenol adsorption associating chemisorption and physisorption processes is presented allowing the discussion of the variations in adsorption behavior between these materials in terms of specific surface area and chemical composition. These data suggest that apatites are promising materials for phenol sorption.
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Affiliation(s)
- A Bahdod
- Laboratoire de Chimie physique Générale, Université Mohamed V, Faculté des Sciences BP.1014 Rabat Maroc
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Kumar E, Bhatnagar A, Ji M, Jung W, Lee SH, Kim SJ, Lee G, Song H, Choi JY, Yang JS, Jeon BH. Defluoridation from aqueous solutions by granular ferric hydroxide (GFH). WATER RESEARCH 2009; 43:490-498. [PMID: 18995880 DOI: 10.1016/j.watres.2008.10.031] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2008] [Revised: 09/19/2008] [Accepted: 10/13/2008] [Indexed: 05/27/2023]
Abstract
This research was undertaken to evaluate the feasibility of granular ferric hydroxide (GFH) for fluoride removal from aqueous solutions. Batch experiments were performed to study the influence of various experimental parameters such as contact time (1 min-24h), initial fluoride concentration (1-100 mgL(-1)), temperature (10 and 25 degrees C), pH (3-12) and the presence of competing anions on the adsorption of fluoride on GFH. Kinetic data revealed that the uptake rate of fluoride was rapid in the beginning and 95% adsorption was completed within 10 min and equilibrium was achieved within 60 min. The sorption process was well explained with pseudo-first-order and pore diffusion models. The maximum adsorption capacity of GFH for fluoride removal was 7.0 mgg(-1). The adsorption was found to be an endothermic process and data conform to Langmuir model. The optimum fluoride removal was observed between pH ranges of 4-8. The fluoride adsorption was decreased in the presence of phosphate followed by carbonate and sulphate. Results from this study demonstrated potential utility of GFH that could be developed into a viable technology for fluoride removal from drinking water.
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Affiliation(s)
- Eva Kumar
- Department of Environmental Engineering, Baekun Hall #332, Yonsei University, 234 Maeji Heungeop, Wonju, 220-710 Gangwon-do, South Korea
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Sundaram CS, Viswanathan N, Meenakshi S. Defluoridation chemistry of synthetic hydroxyapatite at nano scale: equilibrium and kinetic studies. JOURNAL OF HAZARDOUS MATERIALS 2008; 155:206-215. [PMID: 18162304 DOI: 10.1016/j.jhazmat.2007.11.048] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Revised: 11/15/2007] [Accepted: 11/15/2007] [Indexed: 05/25/2023]
Abstract
This study describes the advantages of nano-hydroxyapatite (n-HAp), a cost effective sorbent for fluoride removal. n-HAp possesses a maximum defluoridation capacity [DC] of 1845 mg F(-)/kg which is comparable with that of activated alumina, a defluoridation agent commonly used in the indigenous defluoridation technology. A new mechanism of fluoride removal by n-HAp was proposed in which it is established that this material removes fluoride by both ion-exchange and adsorption process. The n-HAp and fluoride-sorbed n-HAp were characterized using XRD, FTIR and TEM studies. The fluoride sorption was reasonably explained with Langmuir, Freundlich and Redlich-Peterson isotherms. Thermodynamic parameters such as DeltaG degrees , DeltaH degrees , DeltaS degrees and Ea were calculated in order to understand the nature of sorption process. The sorption process was found to be controlled by pseudo-second-order and pore diffusion models. Field studies were carried out with the fluoride containing water sample collected from a nearby fluoride endemic area in order to test the suitability of n-HAp material as a defluoridating agent at field condition.
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Affiliation(s)
- C Sairam Sundaram
- Department of Science and Humanities, Karaikal, Polytechnic College, Karaikal 609609, Puducherry, India
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He QJ, Huang ZL. Template-directed growth and characterization of flowerlike porous carbonated hydroxyapatite spheres. CRYSTAL RESEARCH AND TECHNOLOGY 2007. [DOI: 10.1002/crat.200610848] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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El Hammari L, Laghzizil A, Saoiabi A, Barboux P, Meyer M. Chemical modification of porous calcium hydroxyapatite surfaces by grafting phenylphosphonic and phenylphosphite acids. Colloids Surf A Physicochem Eng Asp 2006. [DOI: 10.1016/j.colsurfa.2006.04.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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