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Eun S, Han YS, Kim H, Kim M, Ryu J, Park JH, Lim JM, Kim S. Photoinduced enhancement of 137Cs removal by NiFe Prussian blue analogue-alginate hydrogel. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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2
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Enhanced Photoredox Activity of BiVO4/Prussian Blue Nanocomposites for Efficient Pollutant Removal from Aqueous Media under Low-Cost LEDs Illumination. Catalysts 2022. [DOI: 10.3390/catal12121612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Bismuth vanadate (BiVO4, BV) is a widely explored photocatalyst for photo(electro)chemical applications, but its full photocatalytic potential is hindered by the fast recombination and low mobility of photogenerated charge carriers. Herein, we propose the photodeposition of different amounts of Prussian blue (PB) cocatalysts on the surface of monoclinic BV to obtain BV-PB composite photocatalysts with increased photoactivity. The as-prepared BV and BV-PB composites were characterized by an array of analytic techniques such scanning eletron microscopy (SEM), transmission eletron microscopy (TEM), X-day diffraction (XRD), and spectroscopic techniques including Fourier-transform infrared spectroscopy (FTIR), diffuse reflectance spectroscopy (DRS), electrochemical impedance spectroscopy (EIS), photoluminescence (PL), and Raman spectroscopy. The addition of PB not only increases the absorption of visible light, as indicated by DRS, but also improves the charge carriers’ transfer across the photocatalysts/solution interface and hence reduces electron-hole (e−-h+) recombination, as confirmed by EIS and PL measurements. Resultantly, the BV-PB composite photocatalysts with optimum PB loading exhibited enhanced Cr(VI) photoreduction efficiency as compared to pristine BV under visible light illumination from low-power blue light-emitting diodes (LEDs), thanks to the cocatalyst role of PB which mediates the transfer of photoexcited conduction band (CB) electrons from BV to Cr(VI) species in solution. Moreover, as compared to pristine BV and BV + H2O2, a drastic increase in the methylene blue (MB) photo-oxidation efficiency was observed for BV-PB in the presence of a minute quantity of H2O2 due to a synergic effect between the photocatalytic and Fenton-like processes. While pure BV photodegraded around 70% of MB dye within 120 min, the BV-PB/H2O2 and BV/H2O2 system could degrade almost 100% of the dye within 20 min (kobs. = 0.375 min−1) and 40 min (kobs. = 0.055 min−1), respectively. The practical approach employed in this work may pioneer new prospects for synthesizing new BV-based photocatalytic systems with low production costs and high photoredox efficiencies.
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3
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Separation and Removal of Radionuclide Cesium from Water by Biodegradable Magnetic Prussian Blue Nanospheres. Processes (Basel) 2022. [DOI: 10.3390/pr10122492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
As the main component of radioactive wastewater, the cesium ion has seriously endangered the environment and human health. Prussian blue nanoparticles (PB NPs) are used as adsorbents for the purification of cesium-containing wastewater because of their ability to selectively adsorb cesium ions. In this work, novel magnetic Prussian blue nanospheres (MPBNs) were developed from polylactic acid nanospheres as a carrier, loaded with Fe3O4 nanoparticles (Fe3O4 NPs) inside and PB NPs outside for the removal of cesium ions with the help of magnetic separation. Meanwhile, the effects on the adsorption efficiency of MPBNs, such as pH, time, temperature and initial concentration of cesium ion solution, were studied. The adsorption isotherms, kinetic models and adsorption thermodynamics were investigated to research the absorption mechanism. The results showed that MPBNs were spherical with a rough surface, and their particle size, iron content and saturation magnetization were 268.2 ± 1.4 nm, 40.01% and 41.71 emu/g, which can be recovered by magnetic separation. At 293 K, MPBNs could reduce the cesium ion solution from 40 mg/L to 4.8 mg/L, and its cesium ion removal rate and adsorption capacity were 82.46% and 16.49 mg/g, respectively. The optimum pH of MPBNs for cesium ion adsorption was 5~9, the adsorption equilibrium time was 60 min, and the maximum adsorption capacity was 17.03 mg/g. In addition, MPBNs were separated rapidly by an external magnetic field, and the adsorption process was an endothermic reaction. The adsorption isotherm and kinetics of MPBNs were in accordance with the Freundlich model and quasi-second-order fitting model, respectively, and the adsorption process of MPBNs was controlled by the diffusion step in particles. Notably, these MPBNs could be effectively separated from water by a magnetic field, facilitating engineering applications in cesium-containing wastewater.
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Novel One-Pot Solvothermal Synthesis of High-Performance Copper Hexacyanoferrate for Cs+ Removal from Wastewater. J CHEM-NY 2021. [DOI: 10.1155/2021/3762917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Efficient removal of radioactive cesium from complex wastewater is a challenge. Unlike traditional precipitation and hydrothermal synthesis, a novel vast specific surface area adsorbent of copper hexacyanoferrates named EA-CuHCF was synthesized using a one-pot solvothermal method under the moderate ethanol media characterized by XRD, SEM, EDS, BET, and FTIR. It was found that the maximum adsorption capacity towards Cs+ was 452.5 mg/g, which is far higher than most of the reported Prussian blue analogues so far. Moreover, EA-CuHCF could effectively adsorb Cs+ at a wide pH range and low concentration of Cs+ in geothermal water within 30 minutes, and the removal rate of Cs+ was 92.1%. Finally, the separation factors between Cs+ and other competitive ions were higher than 553, and the distribution coefficient of Cs+ reached up to 2.343 × 104 mL/g. These properties suggest that EA-CuHCF synthesized by the solvothermal method has high capacity and selectivity and can be used as a candidate for Cs+ removal from wastewater.
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Nayebi B, Niavol KP, Nayebi B, Kim SY, Nam KT, Jang HW, Varma RS, Shokouhimehr M. Prussian blue-based nanostructured materials: Catalytic applications for environmental remediation and energy conversion. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111835] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Yang Y, Ma S, Qu J, Li J, Liu Y, Wang Q, Jing J, Yuan Y, Yao T, Wu J. Transforming type-II Fe 2O 3@polypyrrole to Z-scheme Fe 2O 3@polypyrrole/Prussian blue via Prussian blue as bridge: Enhanced activity in photo-Fenton reaction and mechanism insight. JOURNAL OF HAZARDOUS MATERIALS 2021; 405:124668. [PMID: 33301975 DOI: 10.1016/j.jhazmat.2020.124668] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/13/2020] [Accepted: 11/21/2020] [Indexed: 06/12/2023]
Abstract
Photo-Fenton reaction is a more effective technique for pollutant disposal than photocatalytic reaction. Herein, Fe2O3@polypyrrole/Prussian blue (Fe2O3@PPy/PB) with a hierarchical porous structure was prepared by a reactive-template method. After transforming typical type-II Fe2O3@PPy to Z-scheme Fe2O3@PPy/PB via PB as a bridge, the degradation rate was increased by 1.4 times in photocatalytic reaction and 4.0 times in photo-Fenton reaction due to higher visible-light harvest, enhanced separation efficiency of photoinduced charges, lower interface resistance, and especially well-preserved redox potentials of holes and electrons. Mechanism studies revealed that holes were quenched by H2O2, and this led to •O2- generation and efficient separation of electrons. Meanwhile, O2 was reduced by separated electrons, and this further increased •O2- yield. Therefore, the main radicals changed from hole in photocatalytic reaction to •O2- in the photo-Fenton reaction, leading to an increase as high as 12.1-fold enhancement in the degradation rate. Conversely, only H2O2 participated into photocatalytic reaction using Fe2O3@PPy while O2 was absent, resulting in merely 4.2-fold improvement. This manuscript gives a comprehensive understanding on mechanisms of type-II and Z-scheme heterojunctions in both photocatalytic and photo-Fenton reactions. Obviously, the outcomes are beneficial for designing catalysts with high photo-Fenton activity.
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Affiliation(s)
- Yang Yang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Shouchun Ma
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Jiapeng Qu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Jiaqi Li
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China
| | - Yi Liu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Jilin, China
| | - Qianqian Wang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Jing Jing
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Ye Yuan
- Center for Analysis, Measurement and Computing, Harbin Institute of Technology, Harbin, China
| | - Tongjie Yao
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China.
| | - Jie Wu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin, China.
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Ferreira-Neto EP, Ullah S, Perissinotto AP, de Vicente FS, Ribeiro SJL, Worsley MA, Rodrigues-Filho UP. Prussian blue as a co-catalyst for enhanced Cr( vi) photocatalytic reduction promoted by titania-based nanoparticles and aerogels. NEW J CHEM 2021. [DOI: 10.1039/d1nj01141c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nanostructured Prussian blue layer deposited on titania-based materials acts as an efficient electron acceptor/mediator greatly enhancing Cr(vi) photocatalytic reduction.
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Affiliation(s)
| | - Sajjad Ullah
- Institute of Chemistry
- São Paulo State University (UNESP)
- Araraquara
- Brazil
- Institute of Chemical Sciences
| | | | - Fábio S. de Vicente
- Institute of Geosciences and Exact Sciences
- Department of Physics
- São Paulo State University (UNESP)
- Rio Claro
- Brazil
| | | | - Marcus Andre Worsley
- Physical and Life Sciences Directorate
- Lawrence Livermore National Laboratory
- Livermore
- USA
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8
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A review on emerging composite materials for cesium adsorption and environmental remediation on the latest decade. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117340] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Chen S, Hu J, Guo Y, Belzile N, Deng T. Enhanced kinetics and super selectivity toward Cs + in multicomponent aqueous solutions: A robust Prussian blue analogue/polyvinyl chloride composite membrane. ENVIRONMENTAL RESEARCH 2020; 189:109952. [PMID: 32980023 DOI: 10.1016/j.envres.2020.109952] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Developing effective adsorbents for 137Cs removal from complex wastewater systems has been a significant challenge. Although existing spheres adsorbents could improve the post-separation ability and practical operability, the adsorption kinetics are still significantly retarded due to the large intra-particle diffusion resistance. Here, we demonstrate the efficiency of a robust Prussian blue analogue/polyvinyl chloride composite membrane (PPM), which was easily prepared by a simple solvent evaporation method. In virtue of the less dense layer and ion-sieving functionality, it showed enhanced kinetics (5 h) and super selectivity (SF = 248.3-5388.6) towards Cs+. New PPM was robust within a wide pH range (2-10) and exhibited favorable removal capacity (152.8 mg/g), placing it at an outstanding material for Cs+ removal among other adsorbents. Moreover, PPM could be simply eluted and reused using a KCl solution as eluent. A study of the adsorption mechanism confirmed an ion-exchange action during the removal process. Thus, PPM is considered to be a promising candidate for the removal of Cs+ from multicomponent aqueous solutions.
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Affiliation(s)
- Shangqing Chen
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, PR China
| | - Jiayin Hu
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, PR China.
| | - Yafei Guo
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, PR China
| | - Nelson Belzile
- Department of Chemistry & Biochemistry, Laurentian University, Sudbury, ON, P3E2C6, Canada
| | - Tianlong Deng
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-utilization, College of Chemical Engineering and Materials Science, Tianjin University of Science and Technology, Tianjin, 300457, PR China.
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10
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Carniato F, Gatti G, Vittoni C, Katsev AM, Guidotti M, Evangelisti C, Bisio C. More Efficient Prussian Blue Nanoparticles for an Improved Caesium Decontamination from Aqueous Solutions and Biological Fluids. Molecules 2020; 25:molecules25153447. [PMID: 32751159 PMCID: PMC7435413 DOI: 10.3390/molecules25153447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/19/2020] [Accepted: 07/28/2020] [Indexed: 11/16/2022] Open
Abstract
Any release of radioactive cesium-137, due to unintentional accidents in nuclear plants, represents a dangerous threat for human health and the environment. Prussian blue has been widely studied and used as an antidote for humans exposed to acute internal contamination by Cs-137, due to its ability to act as a selective adsorption agent and to its negligible toxicity. In the present work, the synthesis protocol has been revisited avoiding the use of organic solvents to obtain Prussian blue nanoparticles with morphological and textural properties, which positively influence its Cs+ binding capacity compared to a commercially available Prussian blue sample. The reduction of the particle size and the increase in the specific surface area and pore volume values compared to the commercial Prussian blue reference led to a more rapid uptake of caesium in simulated enteric fluid solution (+35% after 1 h of contact). Then, after 24 h of contact, both solids were able to remove >98% of the initial Cs+ content. The Prussian blue nanoparticles showed a weak inhibition of the bacterial luminescence in the aqueous phase and no chronic detrimental toxic effects.
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Affiliation(s)
- Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica and “Centro interdisciplinare Nano-SiSTeMI”, Università del Piemonte Orientale, via T. Michel 11, 15121 Alessandria, Italy; (F.C.); (G.G.); (C.V.)
| | - Giorgio Gatti
- Dipartimento di Scienze e Innovazione Tecnologica and “Centro interdisciplinare Nano-SiSTeMI”, Università del Piemonte Orientale, via T. Michel 11, 15121 Alessandria, Italy; (F.C.); (G.G.); (C.V.)
| | - Chiara Vittoni
- Dipartimento di Scienze e Innovazione Tecnologica and “Centro interdisciplinare Nano-SiSTeMI”, Università del Piemonte Orientale, via T. Michel 11, 15121 Alessandria, Italy; (F.C.); (G.G.); (C.V.)
| | - Andrey M. Katsev
- Medical Academy, V.I. Vernadsky Crimean Federal University, 295051 Simferopol, Ukraine;
| | - Matteo Guidotti
- CNR-SCITEC Istituto di Scienze e Tecnologie Chimiche “Giulio Natta”, via C. Golgi 19, 20133 Milano, Italy
- Correspondence: (M.G.); (C.B.)
| | - Claudio Evangelisti
- CNR-ICCOM Istituto di Chimica dei Composti Organo Metallici, via G. Moruzzi 1, 56124 Pisa, Italy;
| | - Chiara Bisio
- Dipartimento di Scienze e Innovazione Tecnologica and “Centro interdisciplinare Nano-SiSTeMI”, Università del Piemonte Orientale, via T. Michel 11, 15121 Alessandria, Italy; (F.C.); (G.G.); (C.V.)
- Correspondence: (M.G.); (C.B.)
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11
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Wang R, Luo Z, Tan Q, Wang R, Chen S, Shu J, Chen M, Xiao Z. Sol-gel hydrothermal synthesis of nano crystalline silicotitanate and its strontium and cesium adsorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:4404-4413. [PMID: 31832937 DOI: 10.1007/s11356-019-06907-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 10/28/2019] [Indexed: 06/10/2023]
Abstract
Crystalline silicotitanate (CST) was synthesized via a sol-gel hydrothermal method using Na2Si2O3·9H2O and TiCl4 as silicon and titanium sources. The effects of pH, silicon concentration, hydrothermal temperature, and time on the CST synthesis were studied at a fixed molar ratio of silicon:titanium (0.98:1). Pure nano-CST crystals were synthesized at pH = 12.5, silicon concentration of 5 g L-1, 170 °C for 7 days. The average CST particle size was < 100 nm, with a Sr2+/Cs+ distribution coefficient up to 1.9 × 106 mL g-1/9.4 × 103 mL g-1 under the optimum conditions. In addition, nano-CST absorbed Sr2+/Cs+ over a wide pH range. The nano-CST also displayed a much faster equilibrium time, 4 h, as compared with previous studies. Furthermore, nano-CST adsorption of Sr2+/Cs+ followed a Langmuir adsorption model and was consistent with pseudo-second-order kinetics.
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Affiliation(s)
- Rong Wang
- School of National Defense Science and Technology, Southwest University of Science and Technology, Mianyang, 621010, China
| | - Zhenggang Luo
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, China
| | - Qiuxia Tan
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, China
| | - Rui Wang
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, China
| | - Shuyuan Chen
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, China
| | - Jiancheng Shu
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, China
| | - Mengjun Chen
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, China.
| | - Zhengxue Xiao
- Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, China.
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Faruque HA, Choi ES, Kim JH, Kim S, Kim E. In vivo removal of radioactive cesium compound using Prussian blue-deposited iron oxide nanoparticles. Nanomedicine (Lond) 2019; 14:3143-3158. [DOI: 10.2217/nnm-2019-0085] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To mitigate the side effects of medical treatment by Prussian blue (PB), a well-known adsorbent for radioactive cesium (Cs), PB-deposited magnetic nanoparticles (MNPs), were prepared and analyzed on the adsorbent capacity for Cs removal. Materials & methods: The PB-deposited MNPs were prepared by photo-deposition method and investigated for their Cs adsorption properties in vitro and in vivo. The distribution of the adsorbents was also evaluated in C57BL/6 mice. Results: PB-deposited MNPs provided an improved adsorbent capacity for Cs removal and reduced toxicity to blood cells compared with those of bulk PB. Conclusion: PB-deposited MNPs could be considered as an alternative of PB-based medicine to reduce the possible hazards caused by high dose of PB intake.
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Affiliation(s)
- Hasan Al Faruque
- Companion Diagnostics & Medical Technology Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Republic of Korea,
- Center for Bioconvergence of Spin System (Bic SPIN), Daegu Gyeongbuk Institute of Science & Technology, Daegu, 42988, Republic of Korea
| | - Eun-Sook Choi
- Companion Diagnostics & Medical Technology Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Republic of Korea,
- Center for Bioconvergence of Spin System (Bic SPIN), Daegu Gyeongbuk Institute of Science & Technology, Daegu, 42988, Republic of Korea
| | - Jung-Hee Kim
- Companion Diagnostics & Medical Technology Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Republic of Korea,
| | - Soonhyun Kim
- Smart Textile Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Republic of Korea
| | - Eunjoo Kim
- Companion Diagnostics & Medical Technology Research Group, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu, 42988, Republic of Korea,
- Center for Bioconvergence of Spin System (Bic SPIN), Daegu Gyeongbuk Institute of Science & Technology, Daegu, 42988, Republic of Korea
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El-Din AMS, Monir T, Sayed MA. Nano-sized Prussian blue immobilized costless agro-industrial waste for the removal of cesium-137 ions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:25550-25563. [PMID: 31267400 DOI: 10.1007/s11356-019-05851-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/24/2019] [Indexed: 06/09/2023]
Abstract
For human health and safety, it is of great importance to develop innovative materials with a vast capacity for powerful removal of radioactive ions from aqueous solutions. Prussian blue functionalized sugarcane bagasse (PB-SCB) was successfully prepared for the efficient elimination of radioactive cesium (137Cs) using a nontoxic, environmentally friendly, and costless method. The prepared renewable material was characterized using different techniques to emphasize morphology, functional groups, crystal structure, and the adsorption process. The adsorption of Cs(I) was better fitted to the pseudo-second-order model than pseudo-first-order model which revealed a chemical adsorption mechanism. The experimental isotherm results were best illustrated by the Freundlich model (R2 = 0.98). Besides, the obtained values for the thermodynamic parameters indicating that the adsorption process was endothermic and spontaneous in nature. In addition to demonstrating high adsorption capacity for Cs ion removal (56.7 mg/g at 30 °C), PB-SCB might consider being an efficient and cost-effective adsorbent for the decontamination of cesium, where an estimated cost analysis revealed that the expenditure for the removal of 1000 mg/L cesium from alkaline radioactive wastewater is likely to be US$0.12. Graphical abstract.
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Affiliation(s)
| | - Tarek Monir
- Hot Lab. Center, Atomic Energy Authority, Cairo, 13759, Egypt
| | - Moubarak A Sayed
- Central Lab. for Elemental and Isotopic Analysis, Atomic Energy Authoritys, Cairo, 13759, Egypt
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Dai Y, Lv R, Fan J, Zhang X, Tao Q. Adsorption of cesium using supermolecular impregnated XAD-7 composite: isotherms, kinetics and thermodynamics. J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06625-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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15
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Ding S, Zhang L, Li Y, Hou LA. Fabrication of a novel polyvinylidene fluoride membrane via binding SiO 2 nanoparticles and a copper ferrocyanide layer onto a membrane surface for selective removal of cesium. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:292-299. [PMID: 30685717 DOI: 10.1016/j.jhazmat.2019.01.065] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/09/2018] [Accepted: 01/18/2019] [Indexed: 05/27/2023]
Abstract
A novel polyvinylidene fluoride (PVDF) membrane was fabricated through chemical binding SiO2 nanoparticles (NPs) and copper ferrocyanide (CuFC) layers onto a membrane surface simultaneously to improve the removal efficiency of Cs. The results indicated that the SiO2 NPs were strongly deposited onto the membrane surface, and the CuFC layer was firmly attached on the surface of SiO2 NPs and the membrane. CuFC/SiO2/PVDF membrane remained stable after the acidic solution and sonication stress treatments. CuFC/SiO2/PVDF membrane showed good permeate flux and high selectivity on removal of Cs, and adsorbing capacity reached 1440.4 mg m-2 for Cs. The membrane remained high rejections of Cs in a wide pH, and could be regenerated well by H2O2 and N2H4. Selective adsorption and electrostatic interaction govern the rejection of Cs. The coexisting cations decreased the rejection of Cs mainly in accordance to the order of cations' hydration radii as K+ > Na+ > Ca2+ > Mg2+. In addition, the rejection of Cs could still reach 99.4% in 8 h in the filtration of humic acid solution and natural surface water. The membrane could removal of Cs from water effectively by directly rapid filtration, suggesting it can be applied as promising technology for radioactive wastewater treatment.
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Affiliation(s)
- Shiyuan Ding
- Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, People's Republic of China.
| | - Lilan Zhang
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, People's Republic of China
| | - Yang Li
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Li-An Hou
- State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, People's Republic of China; Xi' an High-Tech Institute, Xi'an 710025, People's Republic of China.
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