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Zeng Z, Huang Q, Li Q, Yan J, Zhao X, Huang L, Zhao S, Zhang H. Experimental and DFT calculation study on the efficient removal of high fluoride wastewater from metallurgical wastewater by kaolinite. ENVIRONMENTAL RESEARCH 2024; 260:119604. [PMID: 39002636 DOI: 10.1016/j.envres.2024.119604] [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: 12/15/2023] [Revised: 06/21/2024] [Accepted: 07/10/2024] [Indexed: 07/15/2024]
Abstract
Fluoride pollution and water scarcity are urgent issues. Reducing fluoride concentration in water is crucial. Kaolinite has been used to study adsorption and fluoride removal in water and to characterize material properties. The experimental results showed that the adsorption capacity of kaolinite decreased with increasing pH. The highest adsorption of fluoride occurred at pH 2, with a capacity of 11.1 mg/g. The fluoride removal efficiency remained high after four regeneration cycles. The fitting results with the Freundlich isotherm model and the external diffusion model showed that the non-homogeneous adsorption of kaolinite fit the adsorption behavior better. Finally, the adsorption mechanism was analyzed by FT-IR and XPS. The binding energies of various adsorption sites and the chemical adsorption properties of atomic states were discussed in relation to DFT calculations. The results showed that Al and H sites were the main binding sites, and the bonding stability for different forms of fluoride varies, with the size of Al-F (-7.498 eV) > H-F (-6.04 eV) > H-HF (-3.439 eV) > Al-HF (-3.283 eV). Furthermore, the density of states and Mulliken charge distribution revealed that the 2p orbital of F was found to be active in the adsorption process and was the main orbital for charge transfer.
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Affiliation(s)
- Zhen Zeng
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Qisheng Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Qian Li
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Jia Yan
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Xiaoyu Zhao
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Lei Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Sijie Zhao
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Hongguo Zhang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; Guangzhou University-Linköping University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou, 510006, China.
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2
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El Messaoudi N, Franco DSP, Gubernat S, Georgin J, Şenol ZM, Ciğeroğlu Z, Allouss D, El Hajam M. Advances and future perspectives of water defluoridation by adsorption technology: A review. ENVIRONMENTAL RESEARCH 2024; 252:118857. [PMID: 38569334 DOI: 10.1016/j.envres.2024.118857] [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: 10/06/2023] [Revised: 03/29/2024] [Accepted: 04/01/2024] [Indexed: 04/05/2024]
Abstract
Fluoride contamination in water sources poses a significant challenge to human health and the environment. In recent years, adsorption technology has emerged as a promising approach for water defluoridation due to its efficiency and cost-effectiveness. This review article comprehensively explores the advances in water defluoridation through adsorption processes. Various adsorbents, including natural and synthetic materials, have been investigated for their efficacy in removing fluoride ions from water. The mechanisms underlying adsorption interactions are elucidated, shedding light on the factors influencing defluoridation efficiency. Moreover, the review outlines the current state of technology, highlighting successful case studies and field applications. Future perspectives in the field of water defluoridation by adsorption are discussed, emphasizing the need for sustainable and scalable solutions. The integration of novel materials, process optimization, and the development of hybrid technologies are proposed as pathways to address existing challenges and enhance the overall efficacy of water defluoridation. This comprehensive assessment of the advances and future directions in adsorption-based water defluoridation provides valuable insights for researchers, policymakers, and practitioners working towards ensuring safe and accessible drinking water for all.
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Affiliation(s)
- Noureddine El Messaoudi
- Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Ibn Zohr University, Agadir, 80000, Morocco.
| | - Dison Stracke Pfingsten Franco
- Department of Civil and Environmental, Universidad de la Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia
| | - Sylwia Gubernat
- Inżynieria Rzeszów S.A., ul. Podkarpacka 59A, 35-082, Rzeszów, Poland
| | - Jordana Georgin
- Department of Civil and Environmental, Universidad de la Costa, CUC, Calle 58 # 55-66, Barranquilla, Atlántico, Colombia.
| | - Zeynep Mine Şenol
- Sivas Cumhuriyet University, Faculty of Health Sciences, Department of Nutrition and Diet, 58140, Sivas, Turkey
| | - Zeynep Ciğeroğlu
- Department of Chemical Engineering, Faculty of Engineering and Natural Sciences, Usak University, Usak, 64300, Turkey
| | - Dalia Allouss
- Laboratory of Materials, Catalysis & Valorization of Natural Resources, FSTM, Hassan II University, Casablanca, Morocco
| | - Maryam El Hajam
- Advanced Structures and Composites Center, University of Maine, Orono, 04469, United States
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Li R, Ren L, Chen L, Liu H, Qiang T. New materials-based on gelatin coordinated with zirconium or aluminum for ecological retanning. Int J Biol Macromol 2024; 261:129922. [PMID: 38309403 DOI: 10.1016/j.ijbiomac.2024.129922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 01/24/2024] [Accepted: 01/31/2024] [Indexed: 02/05/2024]
Abstract
Ecological retanning agent is an effective way to solve the pollution source of leather manufacturing industry. In this study, the gelatin from chrome-containing leather shavings in the leather industry was used to realize sustainable leather post-tanning. The gelatin hydrolysate (GH) coordinated with Zr4+ or Al3+ to prepare eco-friendly retanning agents GH-Zr and GH-Al. The successful coordination between GH and metal ions was characterized by FTIR and XPS. The retanning agents were characterized by FTIR curve-fitting and circular dichroism spectroscopy. The results showed that the conformation of the secondary structure of the polypeptide became ordered and stable after coordinating with the metal ions. The particle size and weight average molecular weight of the retanning agents were ~1700 nm and ~2100, respectively, measured by nanoparticle size analyzer and gel permeation chromatography (GPC). The retanning agents were applied to retanning of chrome tanned leather and glutaraldehyde tanned leather. The abundant free amino from retanning agents can consume the free formaldehyde. Meanwhile, retanning agents can effectively improve the multiple binding sites, resulting in favorable thickening rate (>110 %) and excellent dye and fatliquor absorption rate with ~99.91 % and ~93.18 %. Thus, this strategy can provide a viable choice for solid leather waste and sustainable development of the leather industry.
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Affiliation(s)
- Ruilong Li
- National Demonstration Center for Experimental Light Chemistry Engineering Education, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Longfang Ren
- National Demonstration Center for Experimental Light Chemistry Engineering Education, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Liang Chen
- State Key Laboratory of Environment-friendly Energy Materials, Engineering Research Center of Biomass Materials (Ministry of Education), School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang 621010, China
| | - Huaqing Liu
- National Demonstration Center for Experimental Light Chemistry Engineering Education, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Taotao Qiang
- National Demonstration Center for Experimental Light Chemistry Engineering Education, College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
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Deng Y, Wang S, Shi K, Xiong H. Adsorption removal of fluoride from polluted drinking waters using Mn-Al-La oxide. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:7122-7137. [PMID: 38157167 DOI: 10.1007/s11356-023-31509-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/08/2023] [Indexed: 01/03/2024]
Abstract
Trimetal oxides have received high attention in treatment of fluoride-polluted drinking waters. In this study, Mn-Al-La (MAL) oxide with a mole ratio of 2:1:1 was successively prepared and characterized by XRD, FTIR, XPS, and TEM. It exhibited as cotton-like assemblages (500-800 nm of axial lengths), and BET specific surface area was 52 m2/g. It was used to study fluoride adsorptions in aqueous solutions by batch experiments, under different adsorbent/adsorbate levels, times, temperatures, pH and coexisting anions, and treat simulated groundwater (with 2.85 mg/L fluoride and pH 7.0) by batch and column tests. Adsorption data well fitted to pseudo-second-order rate model (R2 = 0.996-0.999), and Langmuir (R2 = 0.962 - 0.997) and Freundlich (R2 = 0.964-0.989) isothermal models. Their maximum adsorption capacities could reach 45-113 mg/g. Only H2PO4- anions had a restrictive impact at pH 7.0, and there was a good removal ability at pH 3-9. Adsorption processes were spontaneous, endothermic, and random. Adsorption mechanisms were electrostatic interaction and ligand exchange at pH 7.0. Adsorption capacity could reach 73% of initial value at pH 7.0, after three cycles. All application data on the polluted groundwater treatments show MAL oxide is a potential adsorbent for fluoride removals.
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Affiliation(s)
- Yilei Deng
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou Jiangsu, 225127, People's Republic of China
| | - Shuyue Wang
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou Jiangsu, 225127, People's Republic of China
| | - Kun Shi
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou Jiangsu, 225127, People's Republic of China
| | - Huixin Xiong
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou Jiangsu, 225127, People's Republic of China.
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Zeng Z, Li Q, Yan J, Huang L, Arulmani SRB, Zhang H, Xie S, Sio W. The model and mechanism of adsorptive technologies for wastewater containing fluoride: A review. CHEMOSPHERE 2023; 340:139808. [PMID: 37591373 DOI: 10.1016/j.chemosphere.2023.139808] [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: 07/04/2023] [Revised: 08/06/2023] [Accepted: 08/11/2023] [Indexed: 08/19/2023]
Abstract
With the continuous development of society, industrialization, and human activities have been producing more and more pollutants. Fluoride discharge is one of the main causes of water pollution. This review summarizes various commonly used and effective fluoride removal technologies, including ion exchange technology, electrochemical technology, coagulation technology, membrane treatment, and adsorption technology, and points out the outstanding advantages of adsorption technology. Various commonly used fluoride removal techniques as well as typical adsorbent materials have been discussed in published papers, however, the relationship between different adsorbent materials and adsorption models has rarely been explored, therefore, this paper categorizes and summarizes the various models involved in static adsorption, dynamic adsorption, and electrosorption fluoride removal processes, such as pseudo-first-order and pseudo-second-order kinetic models, Langmuir and Freundlich isotherm models, Thomas and Clark dynamic adsorption models, including the mathematical equations of the corresponding models and the significance of the models are also comprehensively summarized. Furthermore, this comprehensive discussion delves into the fundamental adsorption mechanisms, quantification of maximum adsorption capacity, evaluation of resistance to anion interference, and assessment of adsorption regeneration performance exhibited by diverse adsorption materials. The selection of the best adsorption model not only predicts the adsorption performance of the adsorbent but also provides a better description and understanding of the details of each part of the adsorption process, which facilitates the adjustment of experimental conditions to optimize the adsorption process. This review may provide some guidance for the development of more cost-effective adsorbent materials and adsorption processes in the future.
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Affiliation(s)
- Zhen Zeng
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Qian Li
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Jia Yan
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Lei Huang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China.
| | - Samuel Raj Babu Arulmani
- Université de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), Campus de Beaulieu, 35000, Rennes, France
| | - Hongguo Zhang
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China; Guangzhou University-Linköping University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou, 510006, China.
| | - Shaojian Xie
- School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China
| | - Wenghong Sio
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, 999078, China
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6
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Pillai P, Dharaskar S. A novel tri-metal adsorbent used for defluoridation technique from groundwater: performance and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:84083-84098. [PMID: 37355512 DOI: 10.1007/s11356-023-28320-3] [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: 11/22/2022] [Accepted: 06/13/2023] [Indexed: 06/26/2023]
Abstract
In this research article, a novel adsorbent (Zn-Fe-Al) was synthesized successfully by a simple chemical route where three oxides combined to enhance affinity towards fluoride. The physicochemical properties of the adsorbent were used to characterize and assess its effectiveness in defluoridation with both synthetic and groundwater. The TEM results demonstrated the overlapping of metals, and EDX shows the metals present in the adsorbent. The maximum defluoridation efficiency (97%) of Zn-Fe-Al was obtained at an optimized initial pH 7 and adsorbent dose 0.08 g L-1. The fluoride adsorption on Zn-Fe-Al followed the D-R isotherm and intraparticle diffusion. The maximum adsorption capacity of Zn-Fe-Al was found to be 187 mg g-1. The adsorption of fluoride on Zn-Fe-Al was found to be endothermic and spontaneous. The Zn-Fe-Al adsorbent exhibited satisfactory defluoridation performance on real groundwater. The co-existing ions were also investigated. The adsorption mechanisms for fluoride were electrostatic interaction and ion exchange. These results demonstrated that Zn-Fe-Al adsorbent was considered high potential for effective defluoridation of groundwater.
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Affiliation(s)
- Parwathi Pillai
- Department of Chemical Engineering, Swarrnim Institute of Technology, Swarrnim Startup & Innovation University, Gandhinagar, -382420, India
| | - Swapnil Dharaskar
- Department of Chemical Engineering, School of Energy Technology, Pandit Deendayal Energy University, Raisan, Gandhinagar, -382426, India.
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7
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Gupta AR, Indurkar PD, Mondal M, Joshi VC, Bhattacharya A, Sharma S. One-pot facile approach to design an efficient macro-porous polymeric matrix to remediate Hg(II)and Pb(II) from aqueous medium and its performance evaluation study by mathematical modelling. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 323:121255. [PMID: 36775131 DOI: 10.1016/j.envpol.2023.121255] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/25/2023] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
In the present scenario discharge of heavy-metal ions into water bodies is a global threat that is causing serious health hazards even in low concentrations. Thus, in order to remediate the heavy-metal [Hg(II) and Pb(II)] toxicity, an organic-inorganic hybrid functional porous metallo-polymeric network i. e, poly(Zirconyl methacrylate-co-1-vinyl imidazole) (pZrVIm) was fabricated via one-pot facile synthesis approach. The pZrVIm architecture has shown high removal efficiency for Hg(II) and Pb(II) aqueous medium even in extremely low quantities. Advanced instrumental techniques were used to characterize the structural and morphological characteristics of pZrVIm. Different experimental variables i.e., reaction time, pH, initial feed concentration, co-ion effects etc. were explored to examine adsorption behaviour. The maximum adsorption capacities (qmax) of pZrVIm5 were calculated as 168.06 and 162.34 mg g-1 for Hg(II) and Pb(II) respectively by the Langmuir isotherm model. Data from isotherms showed that monolayer adsorption on a homogeneous surface is the rate-limiting stage and followed pseudo-second-order kinetic process. The Artificial Neural Network (ANN) modelling was used to validate kinetics and isotherm data which revealed high accuracy of the model with correlation coefficient values (R = 0.99). Various types of isotherm models such as Langmuir, Freundlich, Dubinin-Radushkevich, Temkin, Redlich-Peterson, Toth and Koble-Corigen have been studied to determine the adsorption phenomena. The pore diffusion model revealed breakthrough time of 91 h and 84 h, Hg(II) and Pb(II) with the feed concentration of 15 mg L-1 respectively. The study revealed that pZrVIm5 has great potential for heavy metal ions remediation for water treatment.
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Affiliation(s)
- Anil R Gupta
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Pankaj D Indurkar
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Mrinmoy Mondal
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Vipin C Joshi
- Process Design & Engineering Cell, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Amit Bhattacharya
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India
| | - Saroj Sharma
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar, 364002, Gujarat, India.
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Liu D, Li Y, Liu C, Li B. Porous Lanthanum-Zirconium phosphate with superior adsorption capability of fluorine for water treatment. J Colloid Interface Sci 2023; 636:588-601. [PMID: 36669452 DOI: 10.1016/j.jcis.2023.01.062] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/21/2022] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
Bimetal oxide is a popular defluorinating material. Hexadecyl trimethyl ammonium bromide (CTAB) as a surfactant successfully synthesizes a novel lanthanum-zirconium phosphate to remove fluorine from groundwater. Lanthanum-zirconium phosphate at a Zr/La molar ratio of 2 exhibited a specific surface area of 455.14 m2/g with a wide pore size, which was achieved by incorporating lanthanum into materials and removing CTAB through calcination. The maximum fluoride adsorption capacity is 109.17 mg/g, which is tenfold that of mesostructured zirconium phosphate. Specifically, analysis revealed that mZrP and LamZrP2-1 were amorphous, which is consistent with HAADF-STEM. The fluoride adsorption fitted well with the pseudo-second-order equation model and Langmuir isotherm mode. LamZrP2-1 had potent anti-interference ability without PO43-. Moreover, LamZrP2-1 was reusable for at least six cycles of adsorption-desorption with little influence. The adsorption mechanism of fluoride was discussed by X-ray photoelectron spectroscopy (XPS), nuclear magnetic resonance spectroscopy (NMR) analysis, and Fourier transform infrared (FTIR) spectroscopy. Fluoride was captured by LamZrP2-1 via charge attraction, ligand exchange of different bond strengths, and ion exchange. Lanthanum-zirconium phosphate is important not only in the research and development of bimetal oxides but also in the treatment of groundwater for fluoride removal.
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Affiliation(s)
- Dongxue Liu
- School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Ye Li
- School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China.
| | - Chang Liu
- School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
| | - Bolin Li
- School of Resources and Environmental Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan 430070, PR China
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Sha Q, Xie H, Liu W, Yang D, He Y, Yang C, Wang N, Ge C. Removal of fluoride using platanus acerifoli leaves biochar - an efficient and low-cost application in wastewater treatment. ENVIRONMENTAL TECHNOLOGY 2023; 44:93-107. [PMID: 34334106 DOI: 10.1080/09593330.2021.1964002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
The fluoride with high-concentration in industrial wastewater will cause great harm to the environment and calcium-modified biochar is an effective adsorbent for the removal of fluoride. Biochar composites were prepared from mature and dried dead leaves and eggshell to remove fluoride from the aqueous solution. The effects of raw material ratio, pH, contact time, adsorbent dosage, temperature, initial concentration of fluoride, and the coexisting ions on the removal efficiency of fluoride were explored. The biochar composites before and after fluoride removal were characterized by the SEM, FTIR, XRD, and XPS, which showed CaF2 precipitation was formed during the adsorption. The kinetics and isotherm study showed that chemical adsorption was the primary step for the fluoride adsorption of the biochar composites. The removal efficiency of fluoride can reach 98.53% when the amount of adsorbent was 1.6 g/L and the fluoride concentration was 500 mg/L. The BET-specific surface area of platanus acerifoli leaves biochar was 410.14 m2/g, which was suitable for the adsorption carrier. The adsorption capacity of the biochar composite materials was as high as 308 mg/g. The platanus acerifoli leaves-eggshell biochar composite with large pore size and high removal efficiency may be used as an efficient and low-cost adsorbent for treating high-concentration fluoride-containing wastewater.
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Affiliation(s)
- Qi Sha
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Huidong Xie
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Wei Liu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Dewei Yang
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Yingying He
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Chang Yang
- Division of Laboratory and Equipment Management, Xi'an University of Architecture and Technology, Xi'an, People's Republic of China
| | - Na Wang
- College of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an, People's Republic of China
| | - Chengmin Ge
- Shandong Dongyuan New Material Technology Co., Ltd., Dongying, People's Republic of China
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10
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Tailored defect-rich cerium metal organic frameworks for efficient fluoride removal from wastewater. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Synthesis of stable flowerlike MgAl-LDH@MIL-88A and its adsorption performance for fluoride. JOURNAL OF CHEMICAL RESEARCH 2022. [DOI: 10.1177/17475198221106680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
MgAl-LDH@MIL-88A as an effective adsorbent was successfully prepared by a simple stirring method in water bath through loading MIL-88A onto the surface of flowerlike MgAl-LDH, which was synthesized via solvothermal method. Interestingly, the results of characterizations showed that the MIL-88A could still grow, but extrude the brucite-like layers of MgAl-LDH. The influences of initial solution pH, contact time, temperature, and co-existing ions on the adsorption performance of MgAl-LDH@MIL-88A were studied systematically by batch static adsorption experiments. It was found that MgAl-LDH@MIL-88A represented the highest adsorption loading of fluoride (14.00 mg g−1) at initial pH 7.0 in 420 min. The uptake process was described appropriately by the pseudo-second-order, the Temkin and the Freundlich isotherm models. The thermodynamic parameters confirmed the endothermic and spontaneous nature of adsorption. MgAl-LDH@MIL-88A was the green adsorbent as the residual mental contents ([Mg2+] = 1.095 mg L−1, [Fe3+] = 0.007 mg L−1, [Al3+] = 0.076 mg L−1) after adsorption met the Chinese sanitary standard for drinking water (GB 5749-2006). The mechanism of fluoride removal by MgAl-LDH@MIL-88A involved the electrostatic interactions between Fe3+ of MIL-88A and fluoride, and ligand exchange among hydroxyl groups of MgAl-LDH, carboxylate groups of the C4H4O4 and fluoride.
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Ni C, Liu C, Xie Y, Xie W, He Z, Zhong H. A critical review on adsorption and recovery of fluoride from wastewater by metal-based adsorbents. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82740-82761. [PMID: 36224467 DOI: 10.1007/s11356-022-23416-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Rapid industrialization is deteriorating water quality, and fluoride pollution in water is one of the most serious environmental pollution problems. Adsorption technology is an efficient and selective process for removing fluoride from aqueous solutions using adsorbents. Metal-based adsorbents synergize the advantages of fast adsorption, high adsorption capacity, and excellent selectivity to effectively remove fluoride from water bodies, promising to satisfy environmental sustainability requirements. This paper reviews the metal-based adsorbents: iron-based, aluminum-based, lanthanum-based, cerium-based, titanium-based, zirconium-based, and multi-metal composite adsorbents, primarily focusing on the adsorption conditions and fluoride removal capacities and discusses prospects and challenges in the synthesis and application of metal-based adsorbents. This paper aims to stimulate new thinking and innovation in developing the next generation of sustainable adsorbents.
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Affiliation(s)
- Chenquan Ni
- Key Laboratory of Biohydrometallurgy of Ministry of Education, School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Chang Liu
- School of Chemical & Environmental Engineering, China University of Mining & Technology (Beijing), Beijing, 100083, China
| | - Yu Xie
- Key Laboratory of Biohydrometallurgy of Ministry of Education, School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Weiqi Xie
- Key Laboratory of Biohydrometallurgy of Ministry of Education, School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China
| | - Zhiguo He
- Key Laboratory of Biohydrometallurgy of Ministry of Education, School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, China.
- Aerospace Kaitian Environmental Technology Co., Ltd, Changsha, 410100, China.
| | - Hui Zhong
- School of Life Science, Central South University, Changsha, 410012, China
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Wang X, Pfeiffer H, Wei J, Wang J, Zhang J. Fluoride ions adsorption from water by CaCO3 enhanced Mn-Fe mixed metal oxides. Front Chem Sci Eng 2022. [DOI: 10.1007/s11705-022-2193-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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14
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Nano-alumina wrapped carbon microspheres for ultrahigh elimination of pentavalent arsenic and fluoride from potable water. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Sonal S, Acharya S, Mishra BK. Mesoporous carbon structure impregnated with 2D engineered zirconium: A sustainable adsorbent for the removal of dyes from the aqueous solution. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 314:115009. [PMID: 35421720 DOI: 10.1016/j.jenvman.2022.115009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/31/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
The key designing of new breeds of the adsorbents aimed to improve the physical, chemical and textural morphology along with surface functionalization, selectivity toward the contaminants, and regenerations efficiency. In this aspect, two adsorbents named wet oxidative and ultrasonicated zirconium impregnated composite, have been synthesized through two routes, i.e., wet oxidation and ultrasonication. In wet oxidation method, carbon-based materials are oxidized using an oxidant followed by impregnation, while in ultrasonication assisted route, the impregnation is carried out using acoustic phenomenon. The characterization study revealed that the wet oxidation process is more competent in impregnating zirconium and developing diverse porosity and functionalities. The maximum adsorption capacity of wet oxidative adsorbent was 812 mg/g for Reactive Blue 19 and 203.18 mg/g for Methylene Blue, that accentuated the efficiency of the adsorbent over raw activated carbon. The electrostatic interaction, hydrogen-bonding and ligand exchange phenomenon are the involved adsorption mechanism for dyes. The regeneration study finally asserts that the wet oxidative adsorbent shows an insignificant decrease in its capacity up to the 5th-cycle (i.e., 87.67% removal at 5th cycle) as compared to raw AC (46.71% removal at 5th cycle). Further, a continuous fixed-bed column study revealed a significant correlation between experimental breakthrough data and kinetic data. Thus, the developed adsorbent has a sedulous adsorption capacity to remove the most stubborn toxic dyes and can be used in industrial-scale applications.
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Affiliation(s)
- Sonalika Sonal
- Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India
| | - Sourav Acharya
- Department of Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Brijesh Kumar Mishra
- Department of Environmental Science and Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad, 826004, India.
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16
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Dzieniszewska A, Nowicki J, Rzepa G, Kyziol-Komosinska J, Semeniuk I, Kiełkiewicz D, Czupioł J. Adsorptive removal of fluoride using ionic liquid-functionalized chitosan - Equilibrium and mechanism studies. Int J Biol Macromol 2022; 210:483-493. [PMID: 35500782 DOI: 10.1016/j.ijbiomac.2022.04.179] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 04/04/2022] [Accepted: 04/24/2022] [Indexed: 01/04/2023]
Abstract
In this study, novel biosorbents, based on chitosan and imidazolium ionic liquid, were prepared for the removal of fluoride from aqueous solutions. The adsorbents were characterized by FTIR, SEM-EDS and low-temperature nitrogen adsorption-desorption. To investigate the adsorption mechanism and behavior of chitosan adsorbents, batch experiments were conducted under different adsorbent dosages (2, 4, 10 g/L), pH (4, 7, 9) and initial concentration (0.5-25.0 mg/L). The influence of the method of synthesis of ionic liquid on the adsorption performance were also studied. Experimental data were evaluated by Freundlich, Langmuir and Sips models. The introduction of ionic liquid significantly improved the uptake of fluoride compared to pure chitosan. The adsorption was influenced by the experimental conditions, as well as the method of ionic liquid synthesis. The highest fluoride removal was observed at pH 4 and found to decrease with increasing pH. The removal efficiency and adsorption capacity values indicated that the dose of 4 g/L was the optimum adsorbent dosage. The equilibrium data fitted best with the Sips isotherm and the maximum adsorption capacity reached 8.068 mg/g for modified chitosan beads. The mechanism of fluoride adsorption onto ionic liquid-modified chitosan involves electrostatic attraction, ion exchange and ion pair interaction.
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Affiliation(s)
- A Dzieniszewska
- Institute of Environmental Engineering PAS, 34 M. Skłodowskiej-Curie St., 41-819 Zabrze, Poland.
| | - J Nowicki
- Łukasiewicz Research Network Institute of Heavy Organic Synthesis "Blachownia", 9 Energetykow Str., 47-225 Kedzierzyn-Kozle, Poland.
| | - G Rzepa
- AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection al. Mickiewicza 30, 30-059 Krakow, Poland.
| | - J Kyziol-Komosinska
- Institute of Environmental Engineering PAS, 34 M. Skłodowskiej-Curie St., 41-819 Zabrze, Poland.
| | - I Semeniuk
- Łukasiewicz Research Network Institute of Heavy Organic Synthesis "Blachownia", 9 Energetykow Str., 47-225 Kedzierzyn-Kozle, Poland.
| | - D Kiełkiewicz
- Łukasiewicz Research Network Institute of Heavy Organic Synthesis "Blachownia", 9 Energetykow Str., 47-225 Kedzierzyn-Kozle, Poland.
| | - J Czupioł
- Institute of Environmental Engineering PAS, 34 M. Skłodowskiej-Curie St., 41-819 Zabrze, Poland.
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17
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Chen L, Qiang T, Chen X, Ren W, Zhang HJ. Gelatin from leather waste to tough biodegradable packaging film: One valuable recycling solution for waste gelatin from leather industry. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 145:10-19. [PMID: 35490538 DOI: 10.1016/j.wasman.2022.04.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 03/18/2022] [Accepted: 04/15/2022] [Indexed: 06/14/2023]
Abstract
Large amount of gelatin can be extracted from the solid waste in leather industry. The advanced application of such gelatin is always desired by the leather industry, but remains challenging. Considering the urgent requirement of biodegradable plastic film, in this study, the gelatin extracted from waste skin scrap in the leather industry was used to fabricate a waste gelatin-based film with a high gelatin content, excellent mechanical performance, and autonomous biodegradability in natural soil. The film was prepared by introducing covalent bonds and metal-ligand bonds to the gelatin matrix. These covalent bonds, metal-ligand bonds, and inherent hydrogen bonds in the gelatin matrix serve as multiple sacrificial bonds for effective energy dissipation giving the waste gelatin-based film excellent mechanical parameters with the highest fracture stress of ≈ 32 MPa, maximum fracture strain of ≈1.25 mm/mm, and a high Young's modulus of ≈ 471 MPa, which are significantly higher than those of the original gelatin film (fracture stress ≈ 4 MPa, fracture strain ≈ 0.70 mm/mm, and Young's modulus ≈ 22 MPa). Owing to the water resistance of covalent bonds and metal-ligand bonds existed in gelatin matrix, the gelatin film possesses good water resistance. Additionally, after use, the fabricated film can completely biodegrade in natural soil in approximately 7 weeks. This strategy not only provides a valuable recycling solution for the gelatin from the unwelcome solid waste of the leather industry, but it also broadens the range of ecofriendly and cost effective biodegradable films available.
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Affiliation(s)
- Liang Chen
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Taotao Qiang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China.
| | - Xuejun Chen
- Glorious Sun Guangdong School of Fashion, Huizhou University, Huizhou 516007, China
| | - Wenqi Ren
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Hui Jie Zhang
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, Xi'an 710021, China.
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18
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Zhang J, Yan X, Liu J, Sun Y, Guo Z, Wang L, Wang X, Wang Z, Fan L, Feng J, Li S, Yan W. A strategy to facilitate the sedimentation and bactericidal properties of polypyrrole for fluoride removal from water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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19
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González-Aguiñaga E, Pérez-Tavares JA, Patakfalvi R, Szabó T, Illés E, Pérez Ladrón de Guevara H, Cardoso-Avila PE, Castañeda-Contreras J, Saavedra Arroyo QE. Amino Acid Complexes of Zirconium in a Carbon Composite for the Efficient Removal of Fluoride Ions from Water. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19063640. [PMID: 35329329 PMCID: PMC8952250 DOI: 10.3390/ijerph19063640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/16/2022] [Accepted: 03/16/2022] [Indexed: 12/05/2022]
Abstract
Amino acid complexes of zirconia represent an entirely new class of materials that were synthesized and studied for the first time for the decontamination of fluoride ion containing aqueous solutions. Glutamic and aspartic acid complexes of zirconia assembled with thin carbon (stacked graphene oxide) platelets deriving from graphite oxide (GO) were synthesized by a two-step method to prepare adsorbents. The characterization of the complexes was carried out using infrared spectroscopy to determine the functional groups and the types of interaction between the composites and fluoride ions. To reveal the mechanisms and extent of adsorption, two types of batch adsorption measurements were performed: (i) varying equilibrium fluoride ion concentrations to construct adsorption isotherms at pH = 7 in the absence of added electrolytes and (ii) using fixed initial fluoride ion concentrations (10 mg/L) with a variation of either the pH or the concentration of a series of salts that potentially interfere with adsorption. The experimental adsorption isotherms were fitted by three different theoretical isotherm equations, and they are described most appropriately by the two-site Langmuir model for both adsorbents. The adsorption capacities of Zr-glutamic acid-graphite oxide and Zr-aspartic acid-graphite oxide are 105.3 and 101.0 mg/g, respectively. We found that two distinct binding modes are combined in the Zr-amino acid complexes: at low solution concentrations, F− ions are preferentially adsorbed by coordinating to the surface Zr species up to a capacity of ca. 10 mg/g. At higher concentrations, however, large amounts of fluoride ions may undergo anion exchange processes and physisorption may occur on the positively charged ammonium moieties of the interfacially bound amino acid molecules. The high adsorption capacity and affinity of the studied dicarboxylate-type amino acids demonstrate that amino acid complexes of zirconia are highly variable materials for the safe and efficient capture of strong Lewis base-type ions such as fluoride.
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Affiliation(s)
- Efrén González-Aguiñaga
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Jalisco, Mexico; (E.G.-A.); (J.A.P.-T.); (H.P.L.d.G.); (J.C.-C.)
| | - José Antonio Pérez-Tavares
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Jalisco, Mexico; (E.G.-A.); (J.A.P.-T.); (H.P.L.d.G.); (J.C.-C.)
| | - Rita Patakfalvi
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Jalisco, Mexico; (E.G.-A.); (J.A.P.-T.); (H.P.L.d.G.); (J.C.-C.)
- Correspondence: (R.P.); (T.S.)
| | - Tamás Szabó
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla tér 1, 6720 Szeged, Hungary
- Correspondence: (R.P.); (T.S.)
| | - Erzsébet Illés
- Department of Food Engineering, University of Szeged, 6720 Szeged, Hungary;
| | - Héctor Pérez Ladrón de Guevara
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Jalisco, Mexico; (E.G.-A.); (J.A.P.-T.); (H.P.L.d.G.); (J.C.-C.)
| | | | - Jesús Castañeda-Contreras
- Centro Universitario de los Lagos, Universidad de Guadalajara, Lagos de Moreno 47460, Jalisco, Mexico; (E.G.-A.); (J.A.P.-T.); (H.P.L.d.G.); (J.C.-C.)
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20
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Wu H, Liu Y, Chen B, Yang F, Wang L, Kong Q, Ye T, Lian J. Enhanced adsorption of molybdenum(VI) from aquatic solutions by chitosan-coated zirconium–iron sulfide composite. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119736] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Efficient removal of fluoride from neutral wastewater by green synthesized Zr/calcium sulfate whiskers: An experimental and theoretical study. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127587] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Feng J, Wang Z, Zhang W, Zhao X, Zhang J, Liu Y, Yan W. Insight into the ion exchange in the adsorptive removal of fluoride by doped polypyrrole from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:67267-67279. [PMID: 34247346 DOI: 10.1007/s11356-021-15027-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 06/16/2021] [Indexed: 06/13/2023]
Abstract
In this study, the polypyrrole (PPy) samples doped with Cl- (PPy-Cl), SO42- (PPy-SO4) and SO42-+Cl- (PPy-SO4+Cl) were synthesized by chemical polymerization for the adsorptive removal of fluoride ion from water. The structure and morphology of the as-prepared PPy samples were characterized by FT-IR, BET, SEM, XPS, and zeta potential. The adsorption experiments revealed that the PPy-Cl exhibited faster kinetics and higher adsorption capacity (13.98 mg/g), more than 4 times that of PPy-SO4 (3.08 mg/g) and PPy-SO4+Cl (3.17 mg/g). The kinetics of the adsorption followed the pseudo-second-order model and the adsorption isotherm data fitted well to the Langmuir model. FT-IR, EDX, and XPS tests for PPy samples before and after fluoride adsorption demonstrated that anion exchange between F- and Cl- or SO42- was the prior mechanism for fluoride ion removal from water. Cl- was more favorable than SO42- in the ion exchange with F-. Meanwhile, the Cl- or SO42- exchanged with F- was mainly bound to the active nitrogen that accounts for 6% of the total nitrogen in PPy molecular matrix. Further study of zeta potential and pH influence experiment demonstrated the electrostatic interaction is auxiliary interaction for the fluoride removal by doped PPy samples.
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Affiliation(s)
- Jiangtao Feng
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China.
| | - Zhenyu Wang
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Wenlong Zhang
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Xuyang Zhao
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Juantao Zhang
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
- CNPC Tubular Goods Research Institute, State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, Xi'an, 710077, Shaanxi, China
| | - Yunpeng Liu
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
| | - Wei Yan
- Department of Environmental Science and Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, China
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23
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Yu T, Chen Y, Zhang Y, Tan X, Xie T, Shao B, Huang X. Novel reusable sulfate-type zirconium alginate ion-exchanger for fluoride removal. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Rashid US, Das TK, Sakthivel TS, Seal S, Bezbaruah AN. GO-CeO₂ nanohybrid for ultra-rapid fluoride removal from drinking water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 793:148547. [PMID: 34328953 DOI: 10.1016/j.scitotenv.2021.148547] [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: 03/18/2021] [Revised: 06/06/2021] [Accepted: 06/15/2021] [Indexed: 05/05/2023]
Abstract
The presence of excess fluoride (F- > 1.5 mg/L) in drinking water affects more than 260 million people globally and leads to dental and skeletal fluorosis among other health problems. This study investigated fluoride removal by graphene oxide-ceria nanohybrid (GO-CeO2) and elucidated the mechanisms involved. The nanohybrid exhibited ultra-rapid kinetics for fluoride removal and the equilibrium (85% removal, 10 mg F-/L initial concentration) was achieved within 1 min which is one of the fastest kinetics for fluoride removal reported so far. Fluoride removal by the nanohybrid followed Langmuir isotherm with a maximum adsorption capacity of 8.61 mg/g at pH 6.5 and that increased to 16.07 mg/g when the pH was lowered to 4.0. Based on the experimental results and characterization data, we have postulated that both electrostatic interaction and surface complexation participated in the fluoride removal process. The O2- ions present in the CeO2 lattice were replaced by F- ions to make a coordination compound (complex). While both Ce4+ and Ce3+ were present in ceria nanoparticles (CeO2 NPs), Ce3+ participated in fluoride complexation. During fluoride removal by GO-CeO2, the GO sheets acted as electron mediators and help to reduce Ce4+ to Ce3+ at the CeO2 NPs-GO interface, and the additional Ce3+ enhanced fluoride removal by the nanohybrid.
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Affiliation(s)
- Umma S Rashid
- Nanoenvirology Research Group, Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND 58105, USA
| | - Tonoy K Das
- Nanoenvirology Research Group, Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND 58105, USA
| | - Tamil S Sakthivel
- Advanced Materials Processing and Analysis Center (AMPAC), Nanoscience and Technology Center (NSTC), Materials Science and Engineering (MSE), University of Central Florida, Orlando, USA
| | - Sudipta Seal
- Advanced Materials Processing and Analysis Center (AMPAC), Nanoscience and Technology Center (NSTC), Materials Science and Engineering (MSE), University of Central Florida, Orlando, USA; College of Medicine, University of Central Florida, Orlando, FL 32826, USA.
| | - Achintya N Bezbaruah
- Nanoenvirology Research Group, Department of Civil and Environmental Engineering, North Dakota State University, Fargo, ND 58105, USA.
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Biswal L, Goodwill JE, Janiak C, Chatterjee S. Versatility, Cost Analysis, and Scale-up in Fluoride and Arsenic Removal Using Metal-organic Framework-based Adsorbents. SEPARATION & PURIFICATION REVIEWS 2021. [DOI: 10.1080/15422119.2021.1956539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Linisha Biswal
- Department of Chemical Engineering, Birla Institute of Technology and Science-Pilani, Pilani, Rajasthan, India
| | - Joseph E. Goodwill
- Department of Civil and Environmental Engineering, University of Rhode Island, Kingston, Rhode Island, USA
| | - Christoph Janiak
- Institute of Inorganic and Structural Chemistry, Heinrich-Heine-Universität, Düsseldorf, Germany
| | - Somak Chatterjee
- Department of Chemical Engineering, Birla Institute of Technology and Science-Pilani, Pilani, Rajasthan, India
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26
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Wan K, Huang L, Yan J, Ma B, Huang X, Luo Z, Zhang H, Xiao T. Removal of fluoride from industrial wastewater by using different adsorbents: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145535. [PMID: 33588221 DOI: 10.1016/j.scitotenv.2021.145535] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 06/12/2023]
Abstract
Many industries such as iron and steel metallurgy, copper and zinc smelting, the battery industry, and cement manufacturing industries discharge high concentrations of fluoride-containing wastewater into the environment. Subsequently, the discharge of high fluoride effluent serves as a threat to human life as well as the ecological ability to sustain life. This article analyses the advantages and drawbacks of some fluoride remediation technologies such as precipitation and flocculation, membrane technology, ion exchange technology, and adsorption technology. Among them, adsorption technology is considered the obvious choice and the best applicable technology. As such, several adsorbents with high fluoride adsorption capacity such as modified alumina, metal oxides, biomass, carbon-based materials, metal-organic frameworks, and other adsorption materials including their characteristics have been comprehensively summarized. Additionally, different adsorption conditions of the various adsorbents, such as pH, temperature, initial fluoride concentration, and contact time have been discussed in detail. The study found out that the composite synergy between different materials, morphological and structural control, and the strengthening of their functional groups can effectively improve the ability of the adsorbents for removing fluoride. This study has prospected the direction of various adsorbents for removing fluoride in wastewater, which would serve as guiding significance for future research in the field.
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Affiliation(s)
- Kuilin Wan
- Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Lei Huang
- Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Jia Yan
- Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Boyan Ma
- Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Xuanjie Huang
- Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Zhixuan Luo
- Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Hongguo Zhang
- Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China; Guangzhou University-Linköping University Research Center on Urban Sustainable Development, Guangzhou University, Guangzhou 510006, PR China.
| | - Tangfu Xiao
- Key Laboratory for Water Quality and Conservation of Pearl River Delta, Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, School of Environmental Science and Engineering, Guangzhou University, Guangzhou 510006, PR China
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27
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Chen X, Wan C, Yu R, Meng L, Wang D, Chen W, Duan T, Li L. A novel carboxylated polyacrylonitrile nanofibrous membrane with high adsorption capacity for fluoride removal from water. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:125113. [PMID: 33858093 DOI: 10.1016/j.jhazmat.2021.125113] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 01/01/2021] [Accepted: 01/10/2021] [Indexed: 06/12/2023]
Abstract
To deal with the drinking water safety caused by fluoride, a novel carboxylated polyacrylonitrile nanofibrous membrane (C-PAN NFM) is designed and fabricated massively for the first time by adopting synchronously biaxial stretching and carboxylation. The C-PAN NFM is composed of the layered stack structure by cross-linked nanofibers. Due to its high specific surface area, excellent hydrophilicity, a large amount of carboxyl and amine groups, C-PAN NFM owns high fluoride adsorption capacity and outstanding selectivity. Both the carboxylation and acid treatment of C-PAN NFM improved the fluoride adsorption capacity remarkably. Specifically, C-PAN NFM shows excellent reusability without secondary pollution. The fluoride adsorption behavior of C-PAN NFM is dominated by chemical adsorption, and the adsorption mechanism is mainly driven by hydrogen bonding and ion exchange. The mass-produced C-PAN NFM is a novel polyacrylonitrile-based porous membrane that shows a great application potential for fluoride removal with good efficiency and recyclability.
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Affiliation(s)
- Xin Chen
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China; National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
| | - Caixia Wan
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Rui Yu
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Lingpu Meng
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Daoliang Wang
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China.
| | - Wei Chen
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Tao Duan
- National Co-Innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang 621010, China
| | - Liangbin Li
- National Synchrotron Radiation Lab, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China.
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28
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Zhao Z, Cui L, Guo Y, Gao J, Li H, Cheng F. A stepwise separation process for selective recovery of gallium from hydrochloric acid leach liquor of coal fly ash. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Enhanced fluoride adsorption from aqueous solution by zirconium (IV)-impregnated magnetic chitosan graphene oxide. Int J Biol Macromol 2021; 182:1759-1768. [PMID: 34048839 DOI: 10.1016/j.ijbiomac.2021.05.116] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 05/07/2021] [Accepted: 05/16/2021] [Indexed: 01/18/2023]
Abstract
In this study, zirconium (IV)-impregnated magnetic chitosan graphene oxide (Zr-MCGO) was synthesized for removing fluoride from aqueous solution in batch mode. Characterization approaches (pHpzc, FTIR, SEM, XRD, VSM, Raman, BET, and XPS) proved the successful incorporation of Zr into the adsorbent. Zr-MCGO exhibited a relatively favorable and stable capacity of defluoridation at lower pH with a wide range of pH from 4.0 to 8.0, while there was slightly negative effect of ionic strength on adsorption. In addition, Elovich kinetic model and Koble-Corrigan isotherm model could describe the uptake of fluoride well. The adsorption capacity was 8.84 mg/g at 313 K and Zr-MCGO was easily separated from mixtures using external magnet. Based on the experiments and XPS, electrostatic force, ligand exchange, and Lewis acid-base interaction might be potential adsorption mechanisms. Pseudo-second-order model was more compatible with the desorption process by 0.01 mol/L NaHCO3 solution. Therefore, Zr-MCGO was a promising candidate for defluoridation on wastewater pollution remediation.
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Jing Y, Wang P, Yang Q, Wang Q, Bai Y. MoS2 decorated with ZrO2 nanoparticles through mussel-inspired chemistry of dopamine for reinforcing anticorrosion of epoxy coatings. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125625] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Biftu WK, Mekala S, Ravindhranath K. De‐fluoridation of Polluted Water Using Aluminium Alginate Beads Doped with Green Synthesized ‘Nano SiO
2
+Nano CeO
2
‐ZrO
2
’, as an Effective Adsorbent. ChemistrySelect 2020. [DOI: 10.1002/slct.202003744] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Wondwosen Kebede Biftu
- Department of Chemistry KoneruLakshmaiah Education Foundation, Green Fields Vaddeswaram 522 502 Guntur Dt., Andhra Pradesh India
- Ethiopian Radiation Protection Authority Addis Ababa Ethiopia
| | - Suneetha Mekala
- Department of Chemistry Rajiv Gandhi University of Knowledge Technologies-Srikakulam Andhra Pradesh India
| | - Kunta Ravindhranath
- Department of Chemistry KoneruLakshmaiah Education Foundation, Green Fields Vaddeswaram 522 502 Guntur Dt., Andhra Pradesh India
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Gao M, Wang W, Cao M, Yang H, Li Y. Constructing hydrangea-like hierarchical zinc-zirconium oxide microspheres for accelerating fluoride elimination. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114133] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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33
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He L, Wang G, Zhang X, Zhang Y, Chen Y. Lanthanum-doped activated carbon derived from municipal sludge for enhanced defluoridation: characteristics and mechanism. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:1643-1652. [PMID: 33107858 DOI: 10.2166/wst.2020.435] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The sewage sludge production has been increasing along with the ever-growing populations and wastewater treatment rate. Lanthanum-doped activated carbon (AC-La) was derived from municipal sludge via chemical activation and utilized for fluoride removal. Batch experiments were conducted to discuss the effect of lanthanum dosage, time and pH on the adsorption process. The results showed that 4 g/L AC-La exhibited a fluoride removal rate of 80.9% with 10 mg/L initial fluoride concentration, and the optimal pH range for adsorption was 3-10. X-ray fluorescence, scanning electron microscopy with energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller, X-ray diffraction, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analyses were conducted to analyze the microstructure and chemical properties of sludge, unmodified activated carbon (AC) and AC-La. The results showed that with initial lanthanum dosage of 15 wt%, the final loading amount of La in AC-La was 13.8 wt%. After modification, the specific surface area of AC-La increased from 1.8 m2/g (sludge) to 133.0 m2/g. The removal mechanism of fluoride onto AC-La was mainly the inner-sphere complexation between lanthanum and fluoride, facilitated by exchange interaction with hydroxyls. A stability study showed that AC-La maintained a quite small dissolution and was safe in waters (La dissolution rate < 0.2‰).
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Affiliation(s)
- Lizhi He
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China E-mail:
| | - Guoqiao Wang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China E-mail:
| | - Xinxin Zhang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China E-mail:
| | - Yujian Zhang
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China E-mail:
| | - Yao Chen
- College of Architecture and Environment, Sichuan University, Chengdu 610065, China E-mail:
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Pang T, Aye Chan TS, Jande YAC, Shen J. Removal of fluoride from water using activated carbon fibres modified with zirconium by a drop-coating method. CHEMOSPHERE 2020; 255:126950. [PMID: 32380266 DOI: 10.1016/j.chemosphere.2020.126950] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 06/11/2023]
Abstract
Metal-modified carbon materials have been widely used for fluoride removal, but the traditional impregnation by soaking method suffers from low loading of metals and substantial use of chemicals. This study proposed a new approach to prepare zirconium modified activated carbon fibres (Zr-ACF) by a drop-coating method. Using the same amount of chemicals, the drop-coating method yielded a 5.5 times higher fluoride adsorption capacity than the soaking method due to more effective loading of Zr(IV) onto ACF. The effects of various preparation conditions, including the addition of a complexing agent (oxalic acid) and Zr/ACF mass ratio (0.2-1), were investigated. Zr-ACF prepared by drop-coating was characterised by SEM and BET, and the functional groups involved in the anchoring of Zr(IV) on ACF and the adsorption of fluoride onto Zr-ACF were identified by FTIR and XPS. Adsorption experiments at pH between 3 and 11 revealed that ion exchange and electrostatic attraction were the main adsorption mechanisms at different pH levels. Co-existing anions such as CO32-, HCO3- and Cl- had an insignificant negative impact (<5%) on fluoride adsorption capacity while SO42- decreased fluoride adsorption capacity by 11.5%. The adsorption kinetics followed the pseudo-second-order model. The adsorption isotherms followed the Langmuir isotherm model with a maximum fluoride adsorption capacity of 28.50 mg/L at 25 °C, which was higher than other carbon-based materials in the literature. The remarkable improvement of adsorption capacity and reduced chemical consumption demonstrate that Zr-ACF prepared by drop-coating is a promising adsorbent for fluoride removal.
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Affiliation(s)
- Tianting Pang
- Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK
| | - Thet Su Aye Chan
- Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK
| | - Yusufu Abeid Chande Jande
- Water Infrastructure and Sustainable Energy Futures (WISE-Futures) Center, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania; Department of Materials and Energy Science and Engineering, Nelson Mandela African Institution of Science and Technology, Arusha, Tanzania
| | - Junjie Shen
- Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK; Centre for Advanced Separations Engineering (CASE), University of Bath, Bath, BA2 7AY, UK; Water Innovation and Research Centre (WIRC), University of Bath, Bath, BA2 7AY, UK.
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Anisotropic morphology, formation mechanisms, and fluorescence properties of zirconia nanocrystals. Sci Rep 2020; 10:13904. [PMID: 32807806 PMCID: PMC7431419 DOI: 10.1038/s41598-020-70570-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/28/2020] [Indexed: 11/08/2022] Open
Abstract
ZrO2 nanocrystals with spheres and elongated platelets were systemically prepared through a simple hydrothermal method by the use of ZrOCl2·8H2O and CH3COOK as raw materials. The anisotropic morphology and formation mechanism of the monoclinic and/or tetragonal ZrO2 were investigated by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, scanning electron microscope, and high-resolution transmission electron microscope techniques. The uniform elongated platelets and star-like structures were composed of short nanorods with a diameter of approximately 5 nm and a length of approximately 10 nm. The different morphologies were formed due to the different contents of CH3COO- and Cl- and their synergy. The fluorescence band position and the band shape remained about the same for excitation wavelengths below 290 nm and the different morphologies of the nanocrystals.
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36
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Physicochemical characteristics and mechanism of fluoride removal using powdered zeolite-zirconium in modes of pulsed& continuous sonication and stirring. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.06.039] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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37
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Kanrar S, Ghosh A, Ghosh A, Mondal A, Sadhukhan M, Ghosh UC, Sasikumar P. One-pot synthesis of Cr(III)-incorporated Zr(IV) oxide for fluoride remediation: a lab to field performance evaluation study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:15029-15044. [PMID: 32065364 DOI: 10.1007/s11356-020-07980-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
A low-cost Cr(III)-incorporated Zr(IV) bimetallic oxide (CZ) was synthesized by simple chemical precipitation method for removal of fluoride from contaminated water. The physicochemical properties of CZ before and after fluoride removal were established with several instrumental techniques such as TEM with elemental mapping, SEM with EDX, XRD, IR, XPS, zeta potential measurement, etc. Batch adsorption technique were carried out to understand the factors affecting fluoride adsorption, such as effects of initial pH, adsorbent dose, co-occurring ions, contact time, and temperature. The maximum adsorption capacity observed at pH between 5 and 7. The fluoride adsorption processes on CZ obeyed the pseudo-second-order rate equations and both Freundlich and DR isotherm models. The maximum adsorption capacity of 90.67 mg g-1 was obtained. The thermodynamic parameters ΔH0 (positive), ΔS0 (positive), and ΔG0 (negative) indicating the fluoride sorption system was endothermic, spontaneous, and feasible. The CZ also successfully used as fluoride adsorbent for real field contaminated water collected from the Machatora district, Bankura, West Bengal, India. Graphical abstract Schematic representation of CZ synthesis and its application for lab as well as field water purification purpose.
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Affiliation(s)
- Sarat Kanrar
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, West Bengal, 700073, India
| | - Abir Ghosh
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, West Bengal, 700073, India
| | - Ayan Ghosh
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, West Bengal, 700073, India
| | - Arpan Mondal
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal By-pass Road, Bhauri, 462066, Madhya Pradesh, India
| | - Mriganka Sadhukhan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Bhubaneswar, Odisha, 751 005, India
| | - Uday Chand Ghosh
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, West Bengal, 700073, India
| | - Palani Sasikumar
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata, West Bengal, 700073, India.
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38
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Ao H, Cao W, Hong Y, Wu J, Wei L. Adsorption of sulfate ion from water by zirconium oxide-modified biochar derived from pomelo peel. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 708:135092. [PMID: 31806309 DOI: 10.1016/j.scitotenv.2019.135092] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 10/15/2019] [Accepted: 10/19/2019] [Indexed: 06/10/2023]
Abstract
Zirconium oxide-modified pomelo peel biochar (ZrBC) was synthesized for the adsorption of sulfate ion from aqueous solution. Zirconyl chloride octahydrate (ZCO) was used to modify pomelo peel biochar into ZrBC. The optimal dose of ZCO for modification is 0.5 mol/L, at which ZrBC shows the highest adsorption of sulfate ion. The adsorbents were characterized by the field emission scanning electron microscopy, X-ray photoelectron spectroscopy and surface area measurement. The results confirm that the presence of zirconium oxides and hydroxide groups on the ZrBC surface, and ZrBC has a porous structure and a higher specific surface area in comparison with pomelo peel biochar. ZrBC shows good affinity for sulfate ion with a maximum sulfate adsorption capacity of 35.21 mg/g, which is much higher than that of pomelo peel biochar (1.02 mg/g). The adsorption of sulfate on ZrBC is pH dependent, and acidic conditions favor the adsorption. The adsorption can reach near-equilibrium in approximately 120 min. The adsorption kinetics and isotherm follow the pseudo second-order equation and Langmuir adsorption model, respectively. Furthermore, nitrate and fluoride anions exhibit little influence on the adsorption of sulfate by ZrBC, whereas phosphate inhibits the adsorption under the same concentration conditions. ZrBC has the potential to be used for removal of sulfate from aqueous solution.
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Affiliation(s)
- Hanting Ao
- College of Civil Engineering, Huaqiao University, Xiamen 361021, China
| | - Wei Cao
- College of Civil Engineering, Huaqiao University, Xiamen 361021, China.
| | - Yixia Hong
- College of Civil Engineering, Huaqiao University, Xiamen 361021, China
| | - Jun Wu
- College of Civil Engineering, Huaqiao University, Xiamen 361021, China
| | - Lin Wei
- College of Civil Engineering, Huaqiao University, Xiamen 361021, China
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The Effect of the ZrO 2 Loading in SiO 2@ZrO 2-CaO Catalysts for Transesterification Reaction. MATERIALS 2020; 13:ma13010221. [PMID: 31947960 PMCID: PMC6981678 DOI: 10.3390/ma13010221] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/26/2019] [Accepted: 01/02/2020] [Indexed: 11/16/2022]
Abstract
The effect of the ZrO2 loading was studied on spherical SiO2@ZrO2-CaO structures synthetized by a simple route that combines the Stöber and sol-gel methods. The texture of these materials was determined using SBET by N2 adsorption, where the increment in SiO2 spheres' surface areas was reached with the incorporation of ZrO2. Combined the characterization techniques of using different alcoholic dissolutions of zirconium (VI) butoxide 0.04 M, 0.06 M, and 0.08 M, we obtained SiO2@ZrO2 materials with 5.7, 20.2, and 25.2 wt % of Zr. Transmission electron microscopy (TEM) analysis also uncovered the shape and reproducibility of the SiO2 spheres. The presence of Zr and Ca in the core-shell was also determined by TEM. X-ray diffraction (XRD) profiles showed that the c-ZrO2 phase changed in to m-ZrO2 by incorporating calcium, which was confirmed by Raman spectroscopy. The purity of the SiO2 spheres, as well as the presence of Zr and Ca in the core-shell, was assessed by the Fourier transform infrared (FTIR) method. CO2 temperature programmed desorption (TPD-CO2) measurements confirmed the increment in the amount of the basic sites and strength of these basic sites due to calcium incorporation. The catalyst reuse in FAME production from canola oil transesterification allowed confirmation that these calcium core@shell catalysts turn out to be actives and stables for this reaction.
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40
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Chen CL, Park SW, Su JF, Yu YH, Heo JE, Kim KD, Huang CP. The adsorption characteristics of fluoride on commercial activated carbon treated with quaternary ammonium salts (Quats). THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 693:133605. [PMID: 31634998 DOI: 10.1016/j.scitotenv.2019.133605] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/24/2019] [Accepted: 07/25/2019] [Indexed: 06/10/2023]
Abstract
Commercial activated carbon was treated with six quaternary ammonium salts (Quats), namely, hexyltrimethylammonium (HTMA), octyltrimethylammonium (OTMA), decyltrimethylammonium (DCTMA), dodecyltrimethylammonium (DDTMA), Tetradecyltrimethylammonium (TDTMA), and hexadecyltrimethylammoium (HDTMA) as to enhance the fluoride adsorption capacity. In batch mode experiments, fluoride adsorption onto the Quats-treated activated carbon decreased dramatically with increase in solution pH. Fluoride removal by the Quats-treated activated carbons was closely related to the Quats chain length at less-than critical micelle concentration (CMC). Multi-site adsorption isotherm described fluoride adsorption characteristics well. Results showed that activated carbon treated with DDTMA exhibited the best fluoride adsorption density among all Quats investigated. DDTMA-treated activated carbons exhibited two-fold increase in the fluoride adsorption capacity compared to the untreated activated carbon. Results of regeneration, by alkaline desorption and/or Quats re-loading, showed fluoride-laden activated carbons have high reusability. DDTMA increased the positive surface charge of the activated carbon that enhanced fluoride adsorption. DDTMA-treated activated carbon was promising for fluoride removal from water with much enhanced removal capacity.
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Affiliation(s)
- Ching-Lung Chen
- Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, USA
| | - Sang-Won Park
- Department of Environmental Science, Keimyung University, Daegu, South Korea
| | - Jenn Feng Su
- Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, USA
| | - Yu-Han Yu
- Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, USA
| | - Jae-Eun Heo
- Center for Green & Convergence Technology, Keimyung University, Daegu, South Korea
| | - Kyung-Duk Kim
- Center for Green & Convergence Technology, Keimyung University, Daegu, South Korea
| | - C P Huang
- Department of Civil and Environmental Engineering, University of Delaware, Newark, DE 19716, USA.
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41
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Guo Y, Xing X, Shang Y, Gao B, Zhang L, Yue Q, Qian L, Wang Z. Multiple bimetallic (Al-La or Fe-La) hydroxides embedded in cellulose/graphene hybrids for uptake of fluoride with phosphate surroundings. JOURNAL OF HAZARDOUS MATERIALS 2019; 379:120634. [PMID: 31299631 DOI: 10.1016/j.jhazmat.2019.05.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 06/10/2023]
Abstract
To insight into the selective adsorption mechanism of fluoride in the bimetallic system, Fe-La or Al-La composites were comparatively embedded onto the cellulose/graphene hybrids (CG hybrids) to fabricate the Fe-La@CG hybrids or Al-La@CG hybrids for fluoride uptake with existing phosphate. The results showed that Al-La@CG hybrids were mainly in the amorphous nature, while Fe-La@CG hybrids have the identical diffraction peaks as compared with those of hydrated lanthanum oxides (HLO) and hydrated iron oxides (HFO). Fluoride capture by Al-La@CG and Fe-La@CG hybrids followed the similar tendencies with the pH altering, but the adsorption performance of Al-La@CG hybrids was better than that of Fe-La@CG hybrids at the same pH levels. Adsorption of fluoride onto Al-La@CG hybrids exhibited less sensitivity and high selectivity with existing phosphate as compared with that of Fe-La@CG hybrids, which further indicated that the Al-La@CG hybrids were more preferable for fluoride adsorption. The fraction areas of La-F and Al-F accounted for 79.1 % and 20.9%, which indicated that the fluoride onto the Al-La@CG hybrids was mainly based on the La species. Similarly, La-F in exhausted Fe-La@CG hybrids accounted for 55.6%, higher than that (44.4%) of Fe-F.
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Affiliation(s)
- Yali Guo
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China
| | - Xu Xing
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China.
| | - Yanan Shang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China
| | - Lei Zhang
- Shandong Provincial Key Laboratory of Oilfield Produced Water Treatment and Environmental Pollution Control (Sinopec Petroleum Engineering Corporation), PR China
| | - Qinyan Yue
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China
| | - Li Qian
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China
| | - Zihang Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan, 250100, PR China
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Mei L, Peng C, Qiao H, Ke F, Liang J, Hou R, Wan X, Cai H. Enhanced removal of fluoride by zirconium modified tea waste with extrusion treatment: kinetics and mechanism. RSC Adv 2019; 9:33345-33353. [PMID: 35529121 PMCID: PMC9073538 DOI: 10.1039/c9ra07155e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 10/01/2019] [Indexed: 11/21/2022] Open
Abstract
To improve the adsorption efficiency of tea-based biosorbents for removing fluoride in drinking water, the novel and effective adsorbent was formed by treating tea waste with extrusion technology. In this study, the extrusion technology was applied to the preparation of adsorbents for the first time. A low-priced and more efficient adsorbent was prepared by loading zirconium onto extruded tea waste (EXT-Zr). Extruded tea waste increased the surface pore size, which could provide more loading sites for zirconium. The EXT-Zr effectively removed fluoride from water in a pH range of 3.0-10.0, which is wider than the pH range of zirconium-loaded tea waste (Tea-Zr). The adsorption was fitted by a pseudo-second order kinetic model and the Langmuir adsorption model. The maximum adsorption capacity was 20.56 mg g-1. The EXT-Zr adsorbent was characterized by Scanning electron microscopy (SEM), Energy-Dispersive Spectroscopy (EDS), X-ray diffraction (XRD), a Brunauer-Emmett-Teller (BET) method, Fourier-transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) to prove the mechanism of how EXT-Zr adsorbs fluoride. The results proved that EXT-based adsorbent will be effective for the enhanced removal of fluoride in drinking water.
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Affiliation(s)
- Liping Mei
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization No. 130 Changjiangxi Road Hefei 230036 Anhui People's Republic of China
| | - Chuanyi Peng
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization No. 130 Changjiangxi Road Hefei 230036 Anhui People's Republic of China
| | - Huanhuan Qiao
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization No. 130 Changjiangxi Road Hefei 230036 Anhui People's Republic of China
| | - Fei Ke
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization No. 130 Changjiangxi Road Hefei 230036 Anhui People's Republic of China
| | - Jin Liang
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization No. 130 Changjiangxi Road Hefei 230036 Anhui People's Republic of China
| | - Ruyan Hou
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization No. 130 Changjiangxi Road Hefei 230036 Anhui People's Republic of China
| | - Xiaochun Wan
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization No. 130 Changjiangxi Road Hefei 230036 Anhui People's Republic of China
| | - Huimei Cai
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization No. 130 Changjiangxi Road Hefei 230036 Anhui People's Republic of China
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Wang J, Shih Y, Wang PY, Yu YH, Su JF, Huang CP. Hazardous waste treatment technologies. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:1177-1198. [PMID: 31433896 DOI: 10.1002/wer.1213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 07/29/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
This is a review of the literature published in 2018 on topics related to hazardous waste management in water, soils, sediments, and air. The review covers treatment technologies applying physical, chemical, and biological principles for contaminated water, soils, sediments, and air. PRACTITIONER POINTS: The management of waters, wastewaters, and soils contaminated by various hazardous chemicals including inorganic (e.g., oxyanions, salts, and heavy metals), organic (e.g., halogenated, pharmaceuticals and personal care products, pesticides, and persistent organic chemicals) was reviewed according to the technology applied, namely, physical, chemical and biological methods. Physical methods for the management of hazardous wastes including adsorption, coagulation (conventional and electrochemical), sand filtration, electrosorption (or CDI), electrodialysis, electrokinetics, membrane (RO, NF, MF), photocatalysis, photoelectrochemical oxidation, sonochemical, non-thermal plasma, supercritical fluid, electrochemical oxidation, and electrochemical reduction processes were reviewed. Chemical methods including ozone-based, hydrogen peroxide-based, persulfate-based, Fenton and Fenton-like, and potassium permanganate processes for the management of hazardous were reviewed. Biological methods such as aerobic, anaerobic, bioreactor, constructed wetlands, soil bioremediation and biofilter processes for the management of hazardous wastes, in mode of consortium and pure culture were reviewed.
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Affiliation(s)
- Jianmin Wang
- Department of Civil, Architectural, and Environmental Engineering, Missouri University of Science & Technology, Rolla, Missouri
| | - Yujen Shih
- Graduate Institute of Environmental Engineering, National Sun yat-sen University, Kaohsiung, Taiwan
| | - Po Yen Wang
- Department of Civil Engineering, Weidner University, Chester, Pennsylvania
| | - Yu Han Yu
- Department of Civil and Environmental Engineering, University of Delaware, Newark, Delaware
| | - Jenn Fang Su
- Department of Civil and Environmental Engineering, University of Delaware, Newark, Delaware
| | - Chin-Pao Huang
- Department of Civil and Environmental Engineering, University of Delaware, Newark, Delaware
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44
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Wang X, Pan S, Zhang M, Qi J, Sun X, Gu C, Wang L, Li J. Modified hydrous zirconium oxide/PAN nanofibers for efficient defluoridation from groundwater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 685:401-409. [PMID: 31176225 DOI: 10.1016/j.scitotenv.2019.05.380] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/24/2019] [Accepted: 05/24/2019] [Indexed: 06/09/2023]
Abstract
Fluoride contamination in groundwater is a worldwide problem that is related to human health. Zirconium-based adsorbents possess satisfactory selective defluoridation capacities. However, narrow efficiency pH range, easy aggregation and difficult separation are the main obstructions in practical application. In this study, the branched polyethyleneimine (bPEI) modified hydrous zirconium oxide (HZO)/polyacrylonitrile (PAN) nanofibers (NFs) are synthesized by immobilizing bPEI-HZO into PAN nanofibers via electrospinning. The resultant bPEI-HZO/PAN NFs exhibit a wide working pH range and an excellent adsorption capacity toward fluoride (67.51 mg·g-1) even at neutral condition, indicating non-negligible superiority in the practical application of groundwater defluoridation. This enhanced adsorption performance along with extended wider working pH range are ascribed to the optimization of the adsorbents from both composition and structure. Compositionally, the modification of bPEI improves the surface property of HZO, and thus increases fluoride capacity in alkaline groundwater. Structurally, electrospinning conquers the drawbacks of nano-adsorbents for both easy aggregation and difficult separation. In addition, the effect of co-existing ions was further investigated and the X-ray photoelectron spectroscopy (XPS) as well as fourier transform infrared spectrum (FTIR) measurements were used to clarify the fluoride adsorption mechanism. Furthermore, the dynamic adsorption and regeneration performance were accomplished through the fixed-bed column experiment. All the results indicated that bPEI-HZO/PAN NFs are promising materials for defluoridation from groundwater.
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Affiliation(s)
- Xuezhu Wang
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Shunlong Pan
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ming Zhang
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Junwen Qi
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiuyun Sun
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Cheng Gu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Lianjun Wang
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jiansheng Li
- Key Laboratory of New Membrane Materials, Ministry of Industry and Information Technology, Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
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45
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E T, Ma D, Yang S, Sun Y, Xu J, Kim EJ. Zirconium dioxide loaded montmorillonite composites as high-efficient adsorbents for the removal of Cr3+ ions from tanning wastewater. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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46
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Shang Y, Wang Z, Xu X, Cheng C, Gao B, Yue Q, Liu S, Han C. Enhanced fluoride uptake by bimetallic hydroxides anchored in cotton cellulose/graphene oxide composites. JOURNAL OF HAZARDOUS MATERIALS 2019; 376:91-101. [PMID: 31125943 DOI: 10.1016/j.jhazmat.2019.05.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 03/07/2019] [Accepted: 05/15/2019] [Indexed: 06/09/2023]
Abstract
A novel hybrid nanomaterial was synthesized by embedding the bimetallic Zr and La (hydro)xides onto the cotton cellulose/graphene oxide composites (CC/GO composites), forming the Zr-La-CC/GO nanocomposites. Selective uptake of fluoride onto the Zr-La /GO hybrids in multiple competitive environments were evaluated. Morphological characteristics of Zr-La-CC/GO nanocomposites reflected the well distributions of embedded Zr and La hydroxides in the nanocomposites. Results also indicated that the encapsulated bimetallic hydroxides in Zr-La-CC/GO hybrids exhibited extremely high fluoride adsorption capacity and stability. XPS investigation exhibited the strong ZrF and LaF bonds in spent Zr-La-CC/GO nanocomposites, and the bonds were weakened at higher pH, which was consistent with the adsorption results. In addition, CC/GO composites using as the host could also exert the strong shielding effect to improve the stability of embedded La and Zr species so as only a low La dissolution (<4.2%) and almost no Zr leaching (0.1%) were observed in high HA concentration. What's more, the Zr-La-CC/GO nanocomposites have also shown great potential application for defluoridation in field.
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Affiliation(s)
- Yanan Shang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Zihang Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Xing Xu
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
| | - Chen Cheng
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Qinyan Yue
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Shiqing Liu
- Office of Pollution Emission Control, Binzhou City, PR China
| | - Cong Han
- Office of Pollution Emission Control, Binzhou City, PR China
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47
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Zhang J, Kong Y, Yang Y, Chen N, Feng C, Huang X, Yu C. Fast Capture of Fluoride by Anion-Exchange Zirconium-Graphene Hybrid Adsorbent. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:6861-6869. [PMID: 31055922 DOI: 10.1021/acs.langmuir.9b00589] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Fluoride contamination is a severe problem affecting the safety of drinking water around the world. High-rate adsorbent materials are particularly desirable for potable water defluoridation. Current research on fluoride adsorbent materials is primarily focused on metal-based adsorbents with high capacities. However, they generally suffer from slow adsorption kinetics due to the adsorption mechanism of a sluggish exchange between coordinated hydroxyl groups and fluoride ions. Designing metal-based adsorbents to mimic the rapid ion-exchange behavior of anion-exchange resins is a promising approach to integrate fast adsorption and high capacity for fluoride removal. Herein, a ZrO(OH)1.33Cl0.66-reduced graphene oxide (rGO) hybrid adsorbent containing exchangeable chloride ions was synthesized with the assistance of cation-π interactions. Unlike most adsorbents requiring a high surface area, this composite has a negligible surface area (1.45 m2 g-1), but can deliver a fast fluoride capture performance (reaching equilibrium in 5 min) with high adsorption rate constants of 1.05 min-1 and 0.171 mg g-1 min-1, around 10 times faster than the best result reported in the literature. Besides, ZrO(OH)1.33Cl0.66-rGO can also demonstrate a high fluoride uptake (44.14 mg g-1) and high removal efficiency (94.4%) in 35 mg L-1 fluoride solution, both among the highest performances for fluoride adsorption.
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Affiliation(s)
- Jing Zhang
- School of Water Resources and Environment , China University of Geosciences (Beijing) , Beijing 100083 , China
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Yueqi Kong
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Yang Yang
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Nan Chen
- School of Water Resources and Environment , China University of Geosciences (Beijing) , Beijing 100083 , China
| | - Chuanping Feng
- School of Water Resources and Environment , China University of Geosciences (Beijing) , Beijing 100083 , China
| | - Xiaodan Huang
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Chengzhong Yu
- Australian Institute for Bioengineering and Nanotechnology , The University of Queensland , Brisbane , QLD 4072 , Australia
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48
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Kumari U, Behera SK, Meikap BC. A novel acid modified alumina adsorbent with enhanced defluoridation property: Kinetics, isotherm study and applicability on industrial wastewater. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:868-882. [PMID: 30497041 DOI: 10.1016/j.jhazmat.2018.11.064] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/15/2018] [Accepted: 11/15/2018] [Indexed: 06/09/2023]
Abstract
Excessive fluoride contamination in ground and surface water is hazardous to human health. Adsorptive removal is a better option for defluoridation due to its simplicity and efficient working property. In the current research, an attempt was made for the removal of fluoride ions from wastewater by a novel adsorbent synthesized with alumina and H2SO4 acid by acidic activation. The adsorbent was characterized for physio-chemical properties by several analytical methods (SEM, EDX, FTIR, XRF, TGA, XRD, HI and pHZPC). The specific surface area of acid activated alumina (AAA) adsorbent was found to be 87.44 m2/g. The batch scale experiments were conducted to study the effect of initial pH, adsorbent dose, stirring rate, and contact time on the defluoridation efficiency of AAA adsorbent. The experimental data of isotherm study was found to follow the Freundlich isotherm model. The maximum adsorption capacity of fluoride on AAA was 69.52 mg/g at 318 K. The nature of adsorption was found to be endothermic and spontaneous. The adsorption kinetic data followed the pseudo-second-order model. The fluoride removal efficiency of alumina with and without acid activation resulted in 96.72% and 63.58%, respectively. The regeneration capability, reusability, applicability on industrial effluent and economic value were investigated.
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Affiliation(s)
- Usha Kumari
- Department of Chemical Engineering, Indian Institute of Technology (IIT) Kharagpur, West Bengal 721302, India.
| | - Sushanta K Behera
- Department of Chemical Engineering, Indian Institute of Technology (IIT) Kharagpur, West Bengal 721302, India
| | - B C Meikap
- Department of Chemical Engineering, Indian Institute of Technology (IIT) Kharagpur, West Bengal 721302, India; Department of Chemical Engineering, School of Chemical Engineering, Howard College Campus, University of Kwazulu-Natal (UKZN), Durban 4041, South Africa
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49
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Parashar K, Pillay K, Das R, Maity A. Fluoride Toxicity and Recent Advances in Water Defluoridation with Specific Emphasis on Nanotechnology. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/978-3-030-04474-9_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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50
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Zhang B, Wu Y, Zhang L, Huo Q, Hu H, Ma F, Yang M, Shi D, Shao Y, Hao X. Growth of high-quality GaN crystals on a BCN nanosheet-coated substrate by hydride vapor phase epitaxy. CrystEngComm 2019. [DOI: 10.1039/c8ce01921e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, boron carbon nitride (BCN) nanosheets were used as a substrate coating material to grow gallium nitride (GaN) crystals by hydride vapor phase epitaxy.
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Affiliation(s)
- Baoguo Zhang
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Yongzhong Wu
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Lei Zhang
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Qin Huo
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Haixiao Hu
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Fukun Ma
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Mingzhi Yang
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Dong Shi
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Yongliang Shao
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
| | - Xiaopeng Hao
- State Key Lab of Crystal Materials
- Shandong University
- Jinan
- P. R. China
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