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Yao B, Fang Z, Hu Y, Ye Z, Peng X. Anodic Electrodepositing Bioinspired Cu-BDC-NH 2@Graphene Oxide Membrane for Efficient Uranium Extraction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5348-5359. [PMID: 38408346 DOI: 10.1021/acs.langmuir.3c03821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
The challenge of removing trace levels of heavy metal ions, particularly uranium, from wastewater is a critical concern in environmental management. Uranium, a key element in long-term nuclear power generation, often poses significant extraction difficulties in wastewater due to its low concentration, interference from other ions, and the complexity of aquatic ecosystems. This study introduces an anodic electrodeposited hierarchical porous 2D metal-organic framework (MOF) Cu-BDC-NH2@graphene oxide (GO) membrane for effective uranium extraction by mimicking the function of the superb-uranyl-binding protein. This membrane is characterized by its hierarchical pillared-layer structures resulting from the controlled orientation of Cu-BDC-NH2 MOFs within the laminated GO layers during the electrodeposition process. The integration of amino groups from 2D Cu-BDC-NH2 and carboxylate groups from GO enables a high affinity to uranyl ions, achieving an unprecedented uranium adsorption capacity of 1078.4 mg/g and outstanding selectivity. Our findings not only demonstrate a breakthrough in uranium extraction technology but also pave the way for advancements in water purification and sustainable energy development, proposing a practical and efficient strategy for creating orientation-tunable 2D MOFs@GO membranes tailored for high-efficiency uranium extraction.
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Affiliation(s)
- Bing Yao
- State Key Laboratory of Silicon Materials and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nanomaterials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Zhou Fang
- State Key Laboratory of Silicon Materials and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nanomaterials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Yue Hu
- State Key Laboratory of Silicon Materials and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nanomaterials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Zhizhen Ye
- State Key Laboratory of Silicon Materials and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nanomaterials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
| | - Xinsheng Peng
- State Key Laboratory of Silicon Materials and Advanced Semiconductor Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nanomaterials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
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Ge J, Tang N, Guo J, Yu M, Zhang Y, Li X, Liang J. Mussel-inspired magnetic adsorbent MnO 2/PDA@Fe 3O 4 for removing heavy metal ions contaminants in single and mixed systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:40846-40859. [PMID: 36622594 DOI: 10.1007/s11356-022-25094-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Heavy metal pollution has been a magnificent concern for a long period. A novel magnetic material, MnO2/PDA@Fe3O4, was prepared in this paper. With the assistance of multiple characterization methods, it was confirmed that polydopamine coated the magnetic nucleus and acted as a dense intermediate layer for MnO2 attachment. Having superior adsorption performance, MnO2/PDA@Fe3O4 could remove heavy metal cations efficiently no matter in single or mixed systems. The maximum adsorption capacities calculated by the Langmuir model for Pb(II), Cu(II), and Cd(II) were 295.01 mg/g, 130.30 mg/g, and 115.16 mg/g, respectively. In mixed systems, the adsorbent showed obvious selectivity for Pb(II). And the variation of Cu(II) concentration was more responsible for Pb(II) adsorption than that of Cd(II). The kinetic and thermodynamic data revealed that the polluted ions immobilizations by MnO2/PDA@Fe3O4 were chemisorption and were endothermic, entropy increase, spontaneous process. The presence of humic acid and coexisting ions induced only a very limited interference. In addition, MnO2/PDA@Fe3O4 maintained excellent adsorption performance and stability after five cycles of adsorption and removed 98.33% Pb(II) and 71.24% Cu(II) from actual water, respectively. This study confirmed that the MnO2/PDA@Fe3O4 had great potential and broad prospects to remediate the heavy metal contaminants in water.
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Affiliation(s)
- Jiangyue Ge
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Ministry of Education, Hunan University, Changsha, 410082, People's Republic of China
| | - Ning Tang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Ministry of Education, Hunan University, Changsha, 410082, People's Republic of China
| | - Jiayin Guo
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Ministry of Education, Hunan University, Changsha, 410082, People's Republic of China
| | - Mengdie Yu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Ministry of Education, Hunan University, Changsha, 410082, People's Republic of China
| | - Yafei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Ministry of Education, Hunan University, Changsha, 410082, People's Republic of China
| | - Xiaodong Li
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China
- Key Laboratory of Environment Biology and Pollution Control, Ministry of Education, Hunan University, Changsha, 410082, People's Republic of China
| | - Jie Liang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China.
- Key Laboratory of Environment Biology and Pollution Control, Ministry of Education, Hunan University, Changsha, 410082, People's Republic of China.
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Ren S, Wang Y, Han Z, Zhang Q, Cui C. Synthesis of polydopamine modified MgAl-LDH for high efficient Cr(VI) removal from wastewater. ENVIRONMENTAL RESEARCH 2022; 215:114191. [PMID: 36063913 DOI: 10.1016/j.envres.2022.114191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/12/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
A highly efficient absorbent was developed in this study by modifying polydopamine film on Mg-Al layered double hydroxide (PDA/MgAl-LDH) to remove Cr(VI) from wastewater. The characterization results showed that the polydopamine film was successfully coated on the MgAl-LDH surface. The preparation ratio, pH, and adsorbent dosage influencing absorption by PDA/MgAl-LDH were systematically investigated. The absorption capacity of Cr(VI) by PDA/MgAl-LDH was 87 mg/g. The equilibrium adsorption isotherm of PDA/MgAl-LDH was in good agreement with that of the Langmuir model. Therefore, the pseudo-second-order kinetic model is suitable for describing adsorption kinetics. The interaction between PDA and Cr(VI) and Cr(III) was investigated using density generalized function theory (DFT), which demonstrated that the PDA amino group could provide electrons for Cr(VI) reduction. Hydrogen and covalent bonding were dominant during the chemisorption process of PDA absorbing Cr(VI), the nitrogen of 5,6-dihydroxyindole was the primary active site for absorbing Cr(III), and electrostatic attraction was mainly responsible for Cr(III) absorption. Therefore, PDA/MgAl-LDH has the potential to adsorb and remove Cr(VI) from wastewater.
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Affiliation(s)
- Shuoqi Ren
- School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
| | - Yuchen Wang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China; Sewage Sludge Laboratory, Harbin Drainage Group co.,LTD, Harbin, 150010, People's Republic of China.
| | - Zijian Han
- School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
| | - Qiwei Zhang
- School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
| | - Chongwei Cui
- School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.
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Chen Q, Xue X, Liu Y, Guo A, Chen K, Yin J, Yu F, Zhu H, Guo X. Shear-induced fabrication of SiO 2 nano-meshes for efficient uranium capture. JOURNAL OF HAZARDOUS MATERIALS 2022; 438:129524. [PMID: 35999738 DOI: 10.1016/j.jhazmat.2022.129524] [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: 04/23/2022] [Revised: 06/17/2022] [Accepted: 07/01/2022] [Indexed: 06/15/2023]
Abstract
The extraction of uranium from seawater and the safe treatment of wastewater containing uranium (VI) were important to ensure the sustainable development of nuclear-related energy sources. Two-dimensional silica nanomaterials have been extensively investigated in the field of uranium adsorption due to their high adsorption capacity, short equilibration times, and easily modified surface groups. However, the two-dimensional mesoporous silica nanomaterial preparation has become a challenge due to the lack of natural sheet templating agents. The reason will hinder the development of silica nanomaterials for uranium extraction. Here, the specific surface area silica nanomeshes (HSMSMs) uranium adsorbent was prepared by a high shear method to induce nanobubble formation. HSMSMs showed a high uranium adsorption capacity of 822 mg-U/g-abs in seawater with the uranium adsorption concentration was 50 mg/L, which was approximately 2 times higher than the conventional mesoporous silica nanomaterials. Compared to HSMSMs, the amidoxime-modified high specific surface area silica nanomesh (HSMSMs-AO) demonstrated good selectivity for U(VI), and the uranium ions uptake was 877 mg-U/g-abs in 50 mg/L uranium-spiked simulated seawater. Due to HSMSMs-AO's stable chemical properties and high mechanical strength, HSMSMs-AO also displayed long service life. Benefiting from the simple preparation method and high adsorption capacity of HSMSMs, HSMSMs could be a promising candidate for large-scale extraction of uranium from seawater.
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Affiliation(s)
- Qiang Chen
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, PR China
| | - Xueyan Xue
- Bingtuan Industrial Technology Research Institute, Shihezi University, Shihezi 832003, PR China
| | - Ying Liu
- China National Nuclear Industry Corporation 404, Jiayuguan 735100, PR China
| | - Aixia Guo
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, PR China
| | - Kai Chen
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, PR China
| | - Jiao Yin
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Urumqi 830011, PR China
| | - Feng Yu
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, PR China; Bingtuan Industrial Technology Research Institute, Shihezi University, Shihezi 832003, PR China.
| | - Hui Zhu
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Urumqi 830011, PR China.
| | - Xuhong Guo
- School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, PR China; State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, PR China.
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Kumar M, Mukherjee S, Thakur AK, Raval N, An AK, Gikas P. Aminoalkyl-organo-silane treated sand for the adsorptive removal of arsenic from the groundwater: Immobilizing the mobilized geogenic contaminants. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127916. [PMID: 34986561 DOI: 10.1016/j.jhazmat.2021.127916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 11/15/2021] [Accepted: 11/24/2021] [Indexed: 06/14/2023]
Abstract
Arsenic (As), a geogenic legacy pollutant can be present in environmental matrices (water, soil, plants, or animal) in two redox states (As(III) or As(V)). In the present study, charged mono- and di-amino functionalized triethoxy and methoxyorganosilane (TT1 and TT2- 1% and 5%) were impregnated with quartz sand particles for the treatment of As polluted water. Spectroscopic characterization of organosilane treated sand (STS) indicated the co-existence of minerals (Mg, Mn, Ti), amide, and amidoalkyl groups, which implies the suitability of silanized materials as a metal(loids) immobilization agent from water. Changes in peaks were observed after As sorption in Fourier thermal infrared and EDS images indicating the involvement of chemisorption. Batch sorption studies were performed with the optimized experimental parameters, where an increased removal (>20% for TT2-1% and >60% for TT1-1%) of As was observed with sorbate concentration (50 µg L-1), temp. (25 ± 2 ºC) and sorbent dosages (of 10 g L-1) at 120 min contact time. Among the different adsorbent dosages, 10 g L-1 of both TT1 and TT2 was selected as an optimum dosage (maximum adsorption capacity ≈ 2.91 μg g-1). The sorption model parameters suggested the possibility of chemisorption, charge/ion-dipole interaction for the removal of arsenate.
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Affiliation(s)
- Manish Kumar
- Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies (UPES), Dehradun, Uttrakhand, 248007, India; Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat, 382355, India.
| | - Santanu Mukherjee
- School of Agriculture, Shoolini University of Biotechnology and Management Sciences, Solan 173229, India
| | - Alok Kumar Thakur
- Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat, 382355, India
| | - Nirav Raval
- Encore Insoltech Pvt Ltd, Gift City Road, Randesan, Gandhinagar, 382007, India; Department of Earth and Environmental Science, KSKV Kachchh University, Bhuj-Kachchh, Gujarat, 370001, India
| | | | - Petros Gikas
- School of Chemical and Environmental Engineering, Technical University at Crete, Chania 73100, Greece
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Singh S, Kaur M, Bajwa B, Kaur I. Salicylaldehyde and 3-hydroxybenzoic acid grafted NH2-MCM-41: Synthesis, characterization and application as U(VI) scavenging adsorbents using batch mode, column and membrane systems. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117061] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Purification of uranium-contaminated radioactive water by adsorption: A review on adsorbent materials. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119675] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Larki A, Saghanezhad SJ, Ghomi M. Recent advances of functionalized SBA-15 in the separation/preconcentration of various analytes: A review. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Singh S, Sharma S, Bajwa BS, Kaur I. Tungsten disulfide (WS2) nanosheets: synthesis, characterization, adsorption studies and application for remediation of groundwater samples with high prevalence of uranium from Faridkot district of SW-Punjab. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07939-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Giannakoudakis DA, Anastopoulos I, Barczak M, Αntoniou Ε, Terpiłowski K, Mohammadi E, Shams M, Coy E, Bakandritsos A, Katsoyiannis IA, Colmenares JC, Pashalidis I. Enhanced uranium removal from acidic wastewater by phosphonate-functionalized ordered mesoporous silica: Surface chemistry matters the most. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125279. [PMID: 33607585 DOI: 10.1016/j.jhazmat.2021.125279] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/16/2021] [Accepted: 01/28/2021] [Indexed: 05/27/2023]
Abstract
The removal of uranium species from aqueous phases using non-hazardous chemicals is still an open challenge, and remediation by adsorption is a prosperous strategy. Among the most crucial concerns regarding the design of an efficient material as adsorbent are, except the cost and the green character, the feasibility to be stable and effective under acidic pH, and to selectively adsorb the desired metal ion (e.g. uranium). Herein, we present a phosphonate functionalized ordered mesoporous silica (OMS-P), prepared by a one-step co-condensation synthesis. The physicochemical features of the material were determined by HR-TEM, XPS, EDX, N2 sorption, and solid NMR, while the surface zeta potential was also measured. The removal efficiency was evaluated at two different temperatures (20 and 50 °C) in acidic environment to avoid interferences like solid phase formation or carbonate complexation and the adsorption isotherms, including data fitting with Langmuir and Freundlich models and thermodynamic parameters are presented and discussed. The high and homogeneous dispersion of the phosphonate groups within the entire silica's structure led to the greatest reported up-todays capacity (345 mg/g) at pH = 4, which was achieved in less than 10 min. Additionally, OMS-P showed that the co-presence of other polyvalent cation like Eu(III) did not affect the efficiency of adsorption, which occurs via inner-sphere complex formation. The comparison to the non-functionalized silica (OMS) revealed that the key feature towards an efficient, stable, and selective removal of the U(VI) species is the specific surface chemistry rather than the textural and structural features. Based on all the results and spectroscopic validations of surface adsorbed U(VI), the main interactions responsible for the elevated uranium removal were proposed.
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Affiliation(s)
| | - Ioannis Anastopoulos
- Department of Chemistry, University of Cyprus, P.O. Box 20537, CY-1678 Nicosia, Cyprus; Department of Electronics Engineering, School of Engineering, Hellenic Mediterranean University, Chania, Crete 73100, Greece.
| | - Mariusz Barczak
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, 20-031 Lublin, Poland.
| | - Εvita Αntoniou
- Department of Chemistry, University of Cyprus, P.O. Box 20537, CY-1678 Nicosia, Cyprus
| | - Konrad Terpiłowski
- Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, 20-031 Lublin, Poland
| | - Elmira Mohammadi
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Slechtitelu 27, Olomouc 78371, Czech Republic
| | - Mahmoud Shams
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Emerson Coy
- NanoBioMedical Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznań, Poland
| | - Aristides Bakandritsos
- Regional Centre of Advanced Technologies and Materials, Faculty of Science, Palacky University, Slechtitelu 27, Olomouc 78371, Czech Republic; Nanotechnology Centre, Centre of Energy and Environmental Technologies, VŠB-Technical University of Ostrava, 708 00 Ostrava-Poruba, Czech Republic
| | - Ioannis A Katsoyiannis
- Aristotle University, Department of Chemistry, Laboratory of Chemical and Environmental Technology, 54124 Thessaloniki, Greece
| | - Juan Carlos Colmenares
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Ioannis Pashalidis
- Department of Chemistry, University of Cyprus, P.O. Box 20537, CY-1678 Nicosia, Cyprus.
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Highly efficient reusable superhydrophobic sponge prepared by a facile, simple and cost effective biomimetic bonding method for oil absorption. Sci Rep 2021; 11:11960. [PMID: 34099822 PMCID: PMC8185010 DOI: 10.1038/s41598-021-91396-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/21/2021] [Indexed: 11/08/2022] Open
Abstract
Superhydrophobic sponges have considerable potential for oil/water separation. Most of the methods used for superhydrophobic modification of sponges require toxic or harmful solvents, which have the drawbacks of hazardous to environment, expensive, and complex to utilize. Moreover, the hydrophobic layer on the surface of sponge is often easily destroyed. In this paper, a highly efficient superhydrophobic sponge with excellent reusability was developed by using a facile, simple and environmentally friendly dopamine biomimetic bonding method. Different types of sponges, such as melamine, polyethylene or polyurethane sponge wastes, were used as raw materials to prepare superhydrophobic sponges, which possess the advantages of inexpensive and abundant. The effects of different dopamine polymerization time and different hydrophobic agent dosage on the hydrophobicity and oil absorption capacity of melamine sponges were optimized. The study results showed that the water contact angle of the superhydrophobic sponge could reach 153° with excellent organic solvent absorption capacity of 165.9 g/g. Furthermore, the superhydrophobic sponge retained approximately 92.1% of its initial absorption capacity after 35 reutilization cycles. More importantly, the dopamine biomimetic bonding superhydrophobic modification method can be used for different types of sponges. Therefore, a universally applicable, facile, simple and environmentally friendly superhydrophobic modification method for sponges was developed.
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Ma J, Sun H, Zhang Y, Chen D, Hu H. Fabrication of epidermal growth factor imprinted and demethylcantharidin loaded dendritic mesoporous silica nanoparticle: An integrated drug vehicle for chemo-/antibody synergistic cancer therapy. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Pandey P, Pandey M, Pandey PK. Uranium contamination removal from water by an orchid (Vanda tessellata) based biosorbent. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07638-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Singh S, Bajwa B, Kaur I. (Zn/Co)-zeolitic imidazolate frameworks: Room temperature synthesis and application as promising U(VI) scavengers — A comparative study. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.10.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Hao S, Jia Z, Wen J, Li S, Peng W, Huang R, Xu X. Progress in adsorptive membranes for separation – A review. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117772] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Miniaturized solid-phase extraction using a mesoporous molecular sieve SBA-15 as sorbent for the determination of triterpenoid saponins from Pulsatilla chinensis by ultrahigh-performance liquid chromatography-charged aerosol detection. J Pharm Biomed Anal 2020; 194:113810. [PMID: 33317913 DOI: 10.1016/j.jpba.2020.113810] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 11/20/2022]
Abstract
A simple, sensitive and efficient solid-phase extraction method, combined with ultrahigh-performance liquid chromatography-charged aerosol detection, was applied to the pre-concentration and determination of four triterpenoid saponins from Pulsatilla chinensis (P. chinensis) ultrasound extract samples. Mesoporous molecular sieve Santa Barbara Amorphous 15 (SBA-15) displayed higher selectivity compared to Mobil Composition of Matter 41 (MCM-41), NH2-SBA-15 and mesoporous carbon when it comes to being used in pretreatment methods. It was applied as an effective sorbent in the SPE for the enrichment of the target analytes. Additionally, several key experimental parameters including the kinds of sorbents, the amount of SBA-15, the elute pH and types of elution solvent were investigated in detail. Under the optimized conditions, the satisfactory linearity (r2 ≥ 0.9940) was acquired and the limits of detection reached 0.461-0.976 μg/mL for the target analytes. The recoveries ranged from 95.1%-103.2%. The experimental results showed that SBA-15 was a candidate material for the purification and concentration of target triterpenoid saponins from complex P. chinensis samples. The study provided theoretical support for the application of mesoporous materials in the field of drug separation and provided references for the extraction and determination of trace compounds in the complex systems of traditional Chinese medicine.
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Liu Y, Chen Y, Zhang J, Gao J, Han Z. Copper microsphere hybrid mesoporous carbon as matrix for preparation of shape-stabilized phase change materials with improved thermal properties. Sci Rep 2020; 10:16061. [PMID: 32994519 PMCID: PMC7524743 DOI: 10.1038/s41598-020-73114-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 09/11/2020] [Indexed: 11/13/2022] Open
Abstract
Copper microsphere hybrid mesoporous carbon (MPC-Cu) was synthesized by the pyrolysis of polydopamine microspheres doped with copper ions that were prepared using a novel, facile and simple one-step method of dopamine biomimetic polymerization and copper ion adsorption. The resulting MPC-Cu was then used as a supporter for polyethylene glycol (PEG) to synthesize shape-stabilized phase change materials (PEG/MPC-Cu) with enhanced thermal properties. PEG/MPC-Cu was studied by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, thermogravimetric analysis, differential scanning calorimetry and thermal constant analysis. The results demonstrated that the thermal conductivity of PEG/MPC-Cu was 0.502 W/(m K), which increased by 100% compared to pure PEG [0.251 W/(m K)]. The melting enthalpy of PEG/MPC-Cu was 95.98 J/g, indicating that PEG/MPC-Cu is a promising candidate for future thermal energy storage applications. In addition, the characterization results suggested that PEG-MPC-Cu possessed high thermal stability. Therefore, the method developed in this paper for preparing shape-stabilized phase change materials with improved thermal properties has substantial engineering application prospects.
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Affiliation(s)
- Yi Liu
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Yan Chen
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Junwei Zhang
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Junkai Gao
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Zhi Han
- School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, China.
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A convenient one-step synthesis of mesoporous ZrO2/SBA-15 and its uranium adsorption properties. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07372-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Phosphate functionalized poly(vinyl alcohol)/poly(acrylic acid) (PVA/PAA): an electrospinning nanofiber for uranium separation. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07319-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Liu S, Luo J, Ma J, Li J, Li S, Meng L, Liu S. Removal of uranium from aqueous solutions using amine-functionalized magnetic platelet large-pore SBA-15. J NUCL SCI TECHNOL 2020. [DOI: 10.1080/00223131.2020.1796838] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Shuqiong Liu
- School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang, Jiangxi, China
| | - Jianqiang Luo
- Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, East China University of Technology, Nanchang, Jiangxi, China
| | - Jianguo Ma
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi, China
| | - Jianqiang Li
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi, China
| | - Song Li
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi, China
| | - Lina Meng
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi, China
| | - Shujuan Liu
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, Jiangxi, China
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21
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Suresh P, Duval CE. Poly(acid)-Functionalized Membranes to Sequester Uranium from Seawater. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01090] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Priyanka Suresh
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Christine E. Duval
- Department of Chemical and Biomolecular Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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22
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Aal MMA, Shabaan SM, Daher AM, Hussein AEM, Gomaa HA, Awais MS. Modification of Nylon 6,6 with Trioctylphosphine Oxide for Uranium Removal from Aqueous Solution. RADIOCHEMISTRY 2020. [DOI: 10.1134/s1066362220020113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Gao J, Liu Y, Li X, Yang M, Wang J, Chen Y. A promising and cost-effective biochar adsorbent derived from jujube pit for the removal of Pb(II) from aqueous solution. Sci Rep 2020; 10:7473. [PMID: 32366969 PMCID: PMC7198518 DOI: 10.1038/s41598-020-64191-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 04/07/2020] [Indexed: 12/21/2022] Open
Abstract
This study evaluated the Pb(II) sorption capacity of jujube pit biochar (JPB) in aqueous solution, which was derived from jujube pit by pyrolysis and used as a promising and economical adsorbent. More importantly, the utilization of JPB could realize the recycling of agricultural residues. The JPB was characterized using conventional science technologies, including SEM, BET and FT-IR, and the sorption capacity of JPB for lead ions was investigated according to different adsorption parameters, such as the kinetics data, solution pH, isotherms data, coexisting ions of Na+ and K+, desorption and reusability, and solution temperature. The results of kinetics data suggested that the lead ion adsorption process by JPB could be fast to reach equilibrium within 30 min. Additionally, the adsorption capacity of JPB for Pb(II) was calculated to be maximum for 137.1 mg/g at pH 6.0. More importantly, after five cycles of desorption and reuse, the JPB still reached 70% of its original adsorption capacity. All the results suggested that JPB had a broad application prospect for the purification of lead ions in practical.
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Affiliation(s)
- Junkai Gao
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Yu Liu
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Xuebin Li
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Mouyuan Yang
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Jinbao Wang
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Yan Chen
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
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24
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Zhou F, Diao Y. Magnetic copper-ferrosilicon composites as regenerable sorbents for Hg0 removal. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124447] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Yang S, Cao Y, Wang T, Cai S, Xu M, Lu W, Hua D. Positively charged conjugated microporous polymers with antibiofouling activity for ultrafast and highly selective uranium extraction from seawater. ENVIRONMENTAL RESEARCH 2020; 183:109214. [PMID: 32044572 DOI: 10.1016/j.envres.2020.109214] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/23/2020] [Accepted: 02/02/2020] [Indexed: 06/10/2023]
Abstract
Uranium high-efficiency separation from seawater still has some obstacles such as slow sorption rate, poor selectivity and biofouling. Herein, we report a strategy for ultrafast and highly selective uranium extraction from seawater by positively charged conjugated microporous polymers (CMPs). The polymers are synthesized by Sonogashira-Hagihara cross-coupling reaction of 1,3-dibromo-5,5-dimethylhydantoin and 1,3,5-triethynylbenzene, and then modified with oxime and carboxyl via click reaction. The CMPs show an ultrafast sorption (0.46 mg g-1 day-1) for uranium, and possess an outstanding selectivity with a high sorption capacity ratio of U/V (8.4) in real seawater. The study of adsorption process and mechanism indicate that the CMPs skeleton exhibits high affinity for uranium and can accelerate the sorption, and uranium(VI) is adsorbed on the materials by the interaction of oxime/carboxyl ligands and hydantoin. Moreover, the material can be simply loaded onto the filter membrane, and shows remarkable antibiofouling properties against E. coli and S. aureus and excellent uptake capacity for uranium with low concentration in real seawater. This work may provide a promising approach to design adsorbents with fast adsorption rate, high selectivity and antibacterial activity, and expand the thinking over the development of novel and highly efficient adsorbents for uranium extraction from seawater.
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Affiliation(s)
- Sen Yang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China.
| | - Yu Cao
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China.
| | - Tao Wang
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China.
| | - Suya Cai
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China.
| | - Meiyun Xu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China.
| | - Weihong Lu
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China.
| | - Daoben Hua
- State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, 215123, China; Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, Suzhou, 215123, China.
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26
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Alvarez-García S, Ramírez-García JJ, Granados-Correa F, Sánchez-Meza JC. Structural and textural influences of surfactant-modified zeolitic materials over the methamidophos adsorption behavior. SEP SCI TECHNOL 2020. [DOI: 10.1080/01496395.2019.1568476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Sonia Alvarez-García
- Facultad de Química, Laboratorio de Análisis Instrumental, Universidad Autónoma del Estado de México, Toluca, México
- Departamento de Química, Instituto Nacional de Investigaciones Nucleares, Ciudad de México, México
| | - Jorge J. Ramírez-García
- Facultad de Química, Laboratorio de Análisis Instrumental, Universidad Autónoma del Estado de México, Toluca, México
| | | | - Juan C. Sánchez-Meza
- Facultad de Química, Laboratorio de Análisis Instrumental, Universidad Autónoma del Estado de México, Toluca, México
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27
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Novel polyazamacrocyclic receptor impregnated macroporous polymeric resins for highly efficient capture of palladium from nitric acid media. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.115953] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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28
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Tan J, Xie S, Wang G, Yu CW, Zeng T, Cai P, Huang H. Fabrication and Optimization of the Thermo-Sensitive Hydrogel Carboxymethyl Cellulose/Poly(N-isopropylacrylamide-co-acrylic acid) for U(VI) Removal from Aqueous Solution. Polymers (Basel) 2020; 12:E151. [PMID: 31936062 PMCID: PMC7022275 DOI: 10.3390/polym12010151] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/18/2019] [Accepted: 01/02/2020] [Indexed: 01/15/2023] Open
Abstract
In this work, the thermo-sensitive materials N-isopropylacrylamide (NIPAM) and acrylic acid (AA) were crosslinked with carboxymethyl cellulose (CMC) (CMC/P (NIPAM-co-AA)) via a free radical polymerization method for the removal of U(VI) from aqueous solution. The L16 (45) orthogonal experiments were designed for the optimization of the synthesis condition. The chemical structures of the crosslinking hydrogel were confirmed by FTIR spectroscopy. The microstructural analyses were conducted though scanning electron microscopy (SEM) to show the pore structure of the hydrogel. The adsorption performance of the CMC/P (NIPAM-co-AA) hydrogel for the uptake of U(VI) from simulated wastewater was also investigated. The adsorption reached equilibrium within 1 h. Under the reaction of pH = 6 and a temperature of 298 K, an initial concentration of U(VI) of 5 mg·L-1, and 10 mg of the CMC/P(NIPAM-co-AA) hydrogel, the maximum adsorption capacity was 14.69 mg g-1. The kinetics fitted perfectly with the pseudo-second-order model, and the isotherms for the composite hydrogel adsorption of U(VI) was in accordance with the Langmuir model. The chemical modification confirmed that the acylamino group played an important role in uranium adsorption. The desorption and reusability study revealed that the resolution rate was still available at approximately 77.74% after five alternate heating cycles at 20 and 50 °C of adsorption-desorption.
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Affiliation(s)
- Juan Tan
- College of Civil Engineering, University of South China, Hengyang 421001, China; (J.T.); (G.W.); (C.W.Y.); (T.Z.)
| | - Shuibo Xie
- Key Discipline Laboratory for National Defence of Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Guohua Wang
- College of Civil Engineering, University of South China, Hengyang 421001, China; (J.T.); (G.W.); (C.W.Y.); (T.Z.)
| | - Chuck Wah Yu
- College of Civil Engineering, University of South China, Hengyang 421001, China; (J.T.); (G.W.); (C.W.Y.); (T.Z.)
| | - Taotao Zeng
- College of Civil Engineering, University of South China, Hengyang 421001, China; (J.T.); (G.W.); (C.W.Y.); (T.Z.)
| | - Pingli Cai
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang 421001, China; (P.C.); (H.H.)
| | - Huayong Huang
- Hunan Provincial Key Laboratory of Pollution Control and Resources Technology, University of South China, Hengyang 421001, China; (P.C.); (H.H.)
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29
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An Y, Zheng H, Yu Z, Sun Y, Wang Y, Zhao C, Ding W. Functioned hollow glass microsphere as a self-floating adsorbent: Rapid and high-efficient removal of anionic dye. JOURNAL OF HAZARDOUS MATERIALS 2020; 381:120971. [PMID: 31421555 DOI: 10.1016/j.jhazmat.2019.120971] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/29/2019] [Accepted: 08/05/2019] [Indexed: 05/26/2023]
Abstract
Rapid, high-efficient adsorbents with efficient solid-liquid separation ability has broad application prospects in the treatment of dye wastewater. In this study, polydopamine and methacryloyloxyethyltrimethyl ammonium chloride were grafted onto hollow glass microspheres to prepare the enhanced polydopamine shell structure adsorbent with self-floating ability. Furthermore, the adsorbent achieves high-efficiency surface solid-liquid separation, which overcomes the disadvantages of the traditional separation methods. Characterizations of the as-synthesized microspheres were performed using various techniques such as SEM, EDS, BET, XPS, FT-IR, TGA and XRD. The adsorbent achieved rapid and high-efficient adsorption of alizarin cyanine green F via the interactions of electrostatic attracting and π-π stacking, and under the optimal experimental conditions, the removal efficiency of 0.10 m mol L-1 dye solution reaches 94.51%, and the adsorption process reaches equilibrium within 60 min. Adsorption isotherms and kinetics data of the adsorbent were well fitted by Langmuir isotherm and pseudo-second-order kinetic models, respectively. The as-synthesized adsorbent has excellent recyclability, and its adsorption performance can be maintained after 5 cycles of reuse. The self-floating adsorbent has great potential for the removal of dissolved contaminants and cost-effective separation.
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Affiliation(s)
- Yanyan An
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Huaili Zheng
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China.
| | - Zhishuang Yu
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Yongjun Sun
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Yili Wang
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
| | - Chun Zhao
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China; State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, PR China
| | - Wei Ding
- Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, State Ministry of Education, Chongqing University, Chongqing 400045, PR China
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Zhang Z, Wang J, Tang X, Liu Y, Han Z, Chen Y. Comparison study between mesoporous silica nanoscale microsphere and active carbon used as the matrix of shape-stabilized phase change material. Sci Rep 2019; 9:16056. [PMID: 31690780 PMCID: PMC6831591 DOI: 10.1038/s41598-019-52553-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 10/21/2019] [Indexed: 01/02/2023] Open
Abstract
Mesoporous silica nanoscale microsphere (MSNM), with a special morphology, high porosity, large pore volume and specific surface area, was successfully prepared and used as the matrix material of lauric acid (LA) to prepare a favorable shape-stabilized phase change material (LA/MSNM). The porous network structure of MSNM is effective to prevent the leakage and enhance the thermal stability of LA/MSNM. For comparison, shape-stabilized phase change material of LA/AC, which contained commercially purchased active carbon (AC) and LA, was prepared by the same method. Characterizations of LA/MSNM and LA/AC, such as chemical properties, structure, thermal properties and crystallization properties were studied. The mechanisms of interaction between LA molecules and MSNM or AC were explicated. The results of TGA test showed that the LA/MSNM and LA/AC had superior thermal stability, and however, the melting and solidification enthalpies of LA/MSNM were much higher than that of LA/AC, which was attributed that the loading capacity of MSNM was better than that of LA/AC. All of the study results demonstrated that the mesoporous silica nanoscale microspheres of MSNM synthesized in this study possessed the potential for practical applications as a suitable supporter of organic phase change materials.
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Affiliation(s)
- Zijun Zhang
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Jingxing Wang
- School of Foreign Languages, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Xi Tang
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Yi Liu
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Zhi Han
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Yan Chen
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China.
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31
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Jiexin L, Pengfei Y, Chunxia Z, Wenxiong Q, Guojun K, Yong L. Preparation of sulfhydryl functionalized magnetic SBA-15 and its high-efficiency adsorption on uranyl ion in solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:34487-34498. [PMID: 31642018 DOI: 10.1007/s11356-019-06329-x] [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: 05/16/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
A novel assembly method was used to prepare the sulfhydryl functionalized magnetic SBA-15 (SH-M-SBA-15). The physicochemical properties of SH-M-SBA-15 were characterized by TEM, XRD, EDS, FT-IR, BET, and VSM. Batch adsorption experiments were conducted to investigate the influence of initial uranium concentration, dosage of adsorbent, pH values, contact time, and temperature on the adsorption efficiency and behaviors. The adsorption types were analyzed from the aspects of kinetic, isotherms, and thermodynamic. The results show that the specific surface area of SH-M-SBA-15 is 316.67 m2/g, which is smaller than that of SBA-15 (692.18 m2/g). However, compared with SBA-15, SH-M-SBA-15 has more surface sulfhydryl functional groups. The addition of this group can improve the adsorption of uranyl ions by SH-M-SBA-15. The optimal adsorption conditions were adsorption dosage 40 mg/L, pH 6, temperature 35 °C, contact time 180 min, and initial uranium concentration 35 mg/L. Under this condition, the maximum adsorption amount of uranyl ion by SH-M-SBA-15 can reach 804.79 mg/g, which is much higher than the highest adsorption capacity of uranyl ion by SBA-15 (146.23 mg/g). The adsorption process was better depicted by the Langmuir isotherm model. The process was consistent with the quasi-second-order model. ΔG was negative and ΔH was positive, indicating spontaneous and endothermic adsorption.
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Affiliation(s)
- Li Jiexin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Yang Pengfei
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, Hunan, China.
- Hunan Province Engineering Research Center of Radioactive Control Technology in Uranium Mining and Metallurgy & Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment Technology, University of South China, Hengyang, 421001, Hunan, China.
| | - Zhu Chunxia
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Qiao Wenxiong
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Ke Guojun
- School of Chemistry and Chemical Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Liu Yong
- Hunan Province Engineering Research Center of Radioactive Control Technology in Uranium Mining and Metallurgy & Hunan Province Engineering Technology Research Center of Uranium Tailings Treatment Technology, University of South China, Hengyang, 421001, Hunan, China
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32
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Synthesis and characterization of phosphorylated Aspergillus niger for effective adsorption of uranium(VI). J Radioanal Nucl Chem 2019. [DOI: 10.1007/s10967-019-06917-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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The synthesis, adsorption mechanism and application of polyethyleneimine functionalized magnetic nanoparticles for the analysis of synthetic colorants in candies and beverages. Food Chem 2019; 293:340-347. [DOI: 10.1016/j.foodchem.2019.04.111] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 04/27/2019] [Accepted: 04/28/2019] [Indexed: 11/23/2022]
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34
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Application of an adsorption isotherm to explain incomplete drug release from ordered mesoporous silica materials under supersaturating conditions. J Control Release 2019; 307:186-199. [DOI: 10.1016/j.jconrel.2019.06.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 06/11/2019] [Accepted: 06/21/2019] [Indexed: 11/21/2022]
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35
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Jafaryan A, Sadjadi S, Gharib A, Ahmadi SJ. Optimization of cadmium adsorption from aqueous solutions by functionalized graphene and the reversible magnetic recovery of the adsorbent using response surface methodology. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Aynaz Jafaryan
- Department of Energy Engineering and PhysicsAmirkabir University of Technology (Tehran Polytechnic) 424 Hafez Avenue, P.O. Box 15875‐4413 Tehran Iran
| | - Sodeh Sadjadi
- Material and Nuclear Fuel SchoolNuclear Science and Technology Research Institute End of North Karegar Ave., Po. Box: 14399‐51113 Tehran Iran
| | - Ahmad Gharib
- Department of Energy Engineering and PhysicsAmirkabir University of Technology (Tehran Polytechnic) 424 Hafez Avenue, P.O. Box 15875‐4413 Tehran Iran
| | - Seyed Javad Ahmadi
- Material and Nuclear Fuel SchoolNuclear Science and Technology Research Institute End of North Karegar Ave., Po. Box: 14399‐51113 Tehran Iran
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Xie Y, Chen C, Ren X, Wang X, Wang H, Wang X. Emerging natural and tailored materials for uranium-contaminated water treatment and environmental remediation. PROGRESS IN MATERIALS SCIENCE 2019; 103:180-234. [DOI: https:/doi.org/10.1016/j.pmatsci.2019.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2023]
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37
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He D, Tan N, Luo X, Yang X, Ji K, Han J, Chen C, Liu Y. Preparation, uranium (VI) absorption and reuseability of marine fungus mycelium modified by the bis-amidoxime-based groups. RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2018-3063] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Abstract
Bis-amidoxime-based claw-like-functionalized marine fungus material (ZZF51-GPTS-DCDA-AM) was prepared for study to absorb the low concentration uranium (VI) from aqueous solution. A series of characterization methods such as SEM, TGA and FT-IR were applied for the functionalized materials before and after modification and adsorption. The experimental results suggested that the amidoxime groups were successfully grafted onto the surface of mycelium powder and provided the special binding sites for the absorption of uranium (VI). In the absorption research, uranium (VI) initial concentration, pH and equilibrium time were optimized as 40 mg L−1, 6.0, and 110 min by L4
3 orthogonal experiment, respectively, and the maximum absorption capacity of the prepared material was 370.85 mg g−1 under the optimum batch conditions. After five cycling process, the desorption rate and regeneration efficiency of the modified mycelium were found to be 80.29 % and 94.51 %, respectively, which indicated that the material had an adequately high reusability property as a cleanup tool. The well known Langmuir and Freundlich isotherm adsorption model fitting found that the modified materials had both monolayer and bilayer adsorption to uranium (VI) ions. Simultaneously, the pseudo-second-order model was better to illustrated the adsorption kinetics process. The enhanced adsorption capacity of uranium (VI) by the modified fungus materials over raw biomass was mainly owing to the strong chelation of amidoxime groups and uranium (VI) ions.
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Affiliation(s)
- Dianxiong He
- School of Chemistry and Chemical Engineering, University of South China , Hengyang 421001 , Hunan Province , P.R. China
| | - Ni Tan
- School of Chemistry and Chemical Engineering, University of South China , Hengyang 421001 , Hunan Province , P.R. China
| | - Xiaomei Luo
- School of Chemistry and Chemical Engineering, University of South China , Hengyang 421001 , Hunan Province , P.R. China
| | - Xuechun Yang
- School of Chemistry and Chemical Engineering, University of South China , Hengyang 421001 , Hunan Province , P.R. China
| | - Kang Ji
- School of Chemistry and Chemical Engineering, University of South China , Hengyang 421001 , Hunan Province , P.R. China
| | - Jingwen Han
- School of Chemistry and Chemical Engineering, University of South China , Hengyang 421001 , Hunan Province , P.R. China
| | - Can Chen
- School of Chemistry and Chemical Engineering, University of South China , Hengyang 421001 , Hunan Province , P.R. China
| | - Yaqing Liu
- School of Chemistry and Chemical Engineering, University of South China , Hengyang 421001 , Hunan Province , P.R. China
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38
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Tailored synthesis of SBA-15 rods using different types of acids and its application in adsorption of uranium. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.08.039] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Gao J, Guo X, Tao W, Chen D, Lu J, Chen Y. Norepinephrine-functionalised nanoflower-like organic silica as a new adsorbent for effective Pb(II) removal from aqueous solutions. Sci Rep 2019; 9:293. [PMID: 30670757 PMCID: PMC6342944 DOI: 10.1038/s41598-018-36644-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 11/26/2018] [Indexed: 01/02/2023] Open
Abstract
In order to remove Pb(II) ions efficiently from aqueous solutions, a new effective adsorbent of norepinephrine-functionalised nanoflower-like organic silica (NE-NFOS) was synthesised by a biomimetic method. Biomimetic functionalization with norepinephrine has the advantages of environment-friendly and easy operation. Characterization of the NE-NFOS using scanning electron microscopy, transmission electron microscopy, Brunauer-Emmett-Teller method, and Fourier-transform infrared spectroscopy revealed that the NFOS was modified successfully by norepinephrine. Furthermore, the influences of different parameters including adsorption kinetics, solution pH, adsorption isotherms, concentrations of Na+, K+, Ca2+, and Mg2+, desorption and reusability were studied. The adsorption experiments showed that the capacity of NE-NFOS to adsorb Pb(II) ions improved greatly after functionalisation and adsorption equilibrium was attained within 90 min at a pH of 6.0. The Na+, K+, Ca2+, and Mg2+ concentrations had little influence on the adsorption, and after recycling for five times, the Pb(II) ion removal efficiency of the adsorbent was more than 79% of its initial value. Thus, it was demonstrated that the NE-NFOS with excellent adsorption performance could be a suitable adsorbent for Pb(II) ions removal in practical applications.
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Affiliation(s)
- Junkai Gao
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Xiuwang Guo
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Wenwen Tao
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Dian Chen
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Jinshu Lu
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China.
| | - Yan Chen
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan, 316022, China.
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40
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Yang P, Chen R, Liu Q, Zhang H, Liu J, Yu J, Liu P, Bai X, Wang J. The efficient immobilization of uranium(vi) by modified dendritic fibrous nanosilica (DFNS) using mussel bioglue. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01351a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a dendritic fibrous nanosilica (DFNS)-based adsorbent was constructed through bio-inspired bifunctional stimulation as a rapid and efficient trap for uranium(vi).
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Affiliation(s)
- Peipei Yang
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- PR China
- College of Material Science and Chemical Engineering
| | - Rongrong Chen
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- PR China
- College of Material Science and Chemical Engineering
| | - Qi Liu
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- PR China
- College of Material Science and Chemical Engineering
| | - Hongsen Zhang
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- PR China
- College of Material Science and Chemical Engineering
| | - Jingyuan Liu
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- PR China
- College of Material Science and Chemical Engineering
| | - Jing Yu
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- PR China
- College of Material Science and Chemical Engineering
| | - Peili Liu
- Harbin Engineering University Capital Management Co. Ltd
- PR China
| | - Xuefeng Bai
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- PR China
| | - Jun Wang
- Key Laboratory of Superlight Material and Surface Technology
- Ministry of Education
- Harbin Engineering University
- PR China
- College of Material Science and Chemical Engineering
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41
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Dolatyari L, Shateri M, Yaftian MR, Rostamnia S. Unmodified SBA-15 adsorbents for the removal and separation of Th(IV) and U(VI) ions: the role of pore channels and surface-active sites. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1556297] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Leila Dolatyari
- Phase Equilibria Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Mehri Shateri
- Phase Equilibria Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Mohammad Reza Yaftian
- Phase Equilibria Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Sadegh Rostamnia
- Organic and Nano Group, Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran
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42
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Investigation of uranium (VI) adsorption by poly(dopamine) functionalized waste paper derived carbon. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.05.024] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Kaleekkal NJ, Radhakrishnan R, Sunil V, Kamalanathan G, Sengupta A, Wickramasinghe R. Performance evaluation of novel nanostructured modified mesoporous silica/polyetherimide composite membranes for the treatment of oil/water emulsion. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.05.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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44
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Wen R, Li Y, Zhang M, Guo X, Li X, Li X, Han J, Hu S, Tan W, Ma L, Li S. Graphene-synergized 2D covalent organic framework for adsorption: A mutual promotion strategy to achieve stabilization and functionalization simultaneously. JOURNAL OF HAZARDOUS MATERIALS 2018; 358:273-285. [PMID: 29990815 DOI: 10.1016/j.jhazmat.2018.06.059] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Most of current absorbents are difficult to hold favorable stability and functionality simultaneously when used in condition of high acidity and strong radiation existing in nuclear industry. Herein, a new graphene-synergized 2D covalent organic framework (GS-COF) was obtained via an in-situ loading of a covalent organic framework (TDCOF) on graphene sheets based on a mutual promotion strategy proposed in this work. The corresponding oximation products, o-GS-COF, and also o-TDCOF as a reference object, were respectively prepared subsequently. The results of experiments confirmed that o-GS-COF possesses better acid and irradiation stability than that of o-TDCOF. Adsorption experiments showed that the adsorption capacity of o-GS-COF for uranium is 144.2 mg g-1, higher than that of GO (92.5 mg g-1) and o-TDCOF (105.0 mg g-1), and the maximum adsorption capacity reaches 220.1 mg g-1. In the multi-ions system, o-GS-COF also displayed good selective adsorption property for uranium with SFU/M 35-100 for 5 coexisting divalent metal ions and 14-18 for 5 coexisting trivalent lanthanide ions. The proposed strategy successfully achieved the synergistic improvement of both stability and functionality for the desired adsorbing materials and is of considerable practical utility in the field of design and preparation of reliable high-performance absorbents.
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Affiliation(s)
- Rui Wen
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China
| | - Yang Li
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China
| | - Meicheng Zhang
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China
| | - Xinghua Guo
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China
| | - Xing Li
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China
| | - Xiaofeng Li
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China
| | - Jun Han
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, PR China
| | - Sheng Hu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, PR China
| | - Wang Tan
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China
| | - Lijian Ma
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China.
| | - Shoujian Li
- College of Chemistry, Sichuan University, Key Laboratory of Radiation Physics & Technology, Ministry of Education, Chengdu, 610064, PR China
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45
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Gładysz-Płaska A, Majdan M, Tarasiuk B, Sternik D, Grabias E. The use of halloysite functionalized with isothiouronium salts as an organic/inorganic hybrid adsorbent for uranium(VI) ions removal. JOURNAL OF HAZARDOUS MATERIALS 2018; 354:133-144. [PMID: 29747148 DOI: 10.1016/j.jhazmat.2018.03.057] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 03/22/2018] [Accepted: 03/28/2018] [Indexed: 06/08/2023]
Abstract
Elimination of U(VI) from nuclear wastes and from the underground water near the uranium mines is the serious problem. Therefore search for new sorbents for U(VI) is still a big challenge for the scientists. This paper investigates of U(VI) ions sorption on halloysite modified with the isothiouronium salts: S-dodecaneisothiouronium bromide (ligand 1), S,S'-dodecane-1,12-diylbis(isothiouronium bromide) (ligand 2), S-hexadecaneisothiouronium chloride (ligand 3), S,S'-naphthalene-1,4-diylbis(methylisothiouronium) dichloride (ligand 4), and S,S'-2,5-dimethylbenzene-1,4-diylbis(methylisothiouronium) dichloride (ligand 5). It was established that halloysite modified by the ligands with four nitrogen atoms in their structure (ligand-5, 2 and 4) was characterized by higher sorption capacity compared with that modified by the ligands with two donor nitrogens (ligand-1 and 3). The maximum sorption capacity of halloysite-5 toward U(VI) was 157 mg U/g and this places the modified mineral among the most effective sorbents for U(VI) removal from wastes. As follows from ATR, XPS and thermal degradation spectra of the sorption products [R-S-C(NH)(NH2)]n = 1-2(UO22+) complexes are formed on the external surface of the halloysite whereas oligomeric hydroxy complexes (UO2)3(OH)5+ and (UO2)4(OH)7+ are present in the interior of halloysite structure and interact predominantly with aluminols.
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Affiliation(s)
- A Gładysz-Płaska
- Maria Curie Skłodowska University, Faculty of Chemistry, 2 M. Curie Skłodowska Sq., 20-031 Lublin, Poland.
| | - M Majdan
- Maria Curie Skłodowska University, Faculty of Chemistry, 2 M. Curie Skłodowska Sq., 20-031 Lublin, Poland
| | - B Tarasiuk
- Maria Curie Skłodowska University, Faculty of Chemistry, 2 M. Curie Skłodowska Sq., 20-031 Lublin, Poland
| | - D Sternik
- Maria Curie Skłodowska University, Faculty of Chemistry, 2 M. Curie Skłodowska Sq., 20-031 Lublin, Poland
| | - E Grabias
- Maria Curie Skłodowska University, Faculty of Mathematics, Physics and Computer Science, 5M. Curie Skłodowska Sq., 20-031 Lublin, Poland; Off-Campus Faculty of Social Sciences in Stalowa Wola, John Paul II Catholic University of Lublin
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46
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Facile preparation and adsorption performance of graphene oxide-manganese oxide composite for uranium. Sci Rep 2018; 8:9058. [PMID: 29899529 PMCID: PMC5998119 DOI: 10.1038/s41598-018-27111-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/24/2018] [Indexed: 11/09/2022] Open
Abstract
To overcome the limits of low adsorption capacity and the separation difficulty of solid from liquid phase for graphene oxide (GO), a novel nanocomposite graphene oxide-manganese oxide (GOMO) was facilely fabricated under ultrasonic radiation. The structures and micro-morphology of the products were characterized by fourier transform infrared (FT-IR) spectroscopy, raman shift spectroscopy, X-ray diffraction (XRD) pattern and scanning electron microscopy (SEM). The effect of solution pH, adsorbent dose, contact time, initial uranium concentration, ionic strength and temperature on uranium removal efficiency was studied by batch adsorption experiments. The product GOMO was used to examine the feasibility of the removal of high salt content in uranium-containing wastewater. The adsorption results were fitted using the Langmuir and Freundlich isotherm models. The kinetic parameters in the adsorption process were measured and fitted. Five adsorption/desorption cycles were performed using 3 M HNO3 as the regenerant in order to evaluate the reuse of GOMO.
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47
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Gao J, Tao W, Chen D, Guo X, Chen Y, Jiang Y. High Performance Shape-Stabilized Phase Change Material with Nanoflower-Like Wrinkled Mesoporous Silica Encapsulating Polyethylene Glycol: Preparation and Thermal Properties. NANOMATERIALS 2018; 8:nano8060385. [PMID: 29857486 PMCID: PMC6027213 DOI: 10.3390/nano8060385] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/20/2018] [Accepted: 05/22/2018] [Indexed: 11/16/2022]
Abstract
Nanoflower-like wrinkled mesoporous silica (NFMS) was prepared for further application as the carrier of polyethylene glycol (PEG) to fabricate the new, shape-stabilized phase change composites (PEG/NFMS); NFMS could improve the loading content of PEG in the PEG/NFMS. To investigate the properties of PEG/NFMS, characterization approaches, such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), thermal gravimetric analysis (TGA), Brunauer-Emmett-Teller (BET) analysis, and differential scanning calorimetry (DSC), were carried out. The characterization results illustrated that the PEG was completely adsorbed in the NFMS by physical adsorption, and the nanoflower-like wrinkled silica did not affect the crystal structure of PEG. As reported by the DSC test, although NFMS had a restriction influence on the activity of the PEG molecules, the melting and binding enthalpies of the PEG/NFMS could reach 136.6 J/g and 132.6 J/g, respectively. In addition, the TGA curves demonstrated that no evident weight loss was observed from 20 °C to 190 °C for the PEG/NFMS, and the results revealed that the PEG/NFMS had remarkable thermal stability. These results indicated that the NFMS is a potential carrier of organic phase change material for the preparation of shape-stabilized phase change composites.
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Affiliation(s)
- Junkai Gao
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Wenwen Tao
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Dian Chen
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Xiuwang Guo
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Yan Chen
- School of Port and Transportation Engineering, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China.
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48
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Zhang H, Dai Z, Sui Y, Xue J, Ding D. Adsorption of U(VI) from aqueous solution by magnetic core–dual shell Fe3O4@PDA@TiO2. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5923-0] [Citation(s) in RCA: 18] [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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49
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Lu BQ, Li M, Zhang XW, Huang CM, Wu XY, Fang Q. Immobilization of uranium into magnetite from aqueous solution by electrodepositing approach. JOURNAL OF HAZARDOUS MATERIALS 2018; 343:255-265. [PMID: 28965015 DOI: 10.1016/j.jhazmat.2017.09.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 08/12/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
Immobilization of uranium into magnetite (Fe3O4), which was generated from metallic iron by electrochemical method, was proposed to rapidly remove uranium from aqueous solution. The effects of electrochemical parameters such as electrode materials, voltage, electrode gap, reaction time and pH value on the crystallization of Fe3O4 and uranium removal efficiencies were investigated. More than 90% uranium in the solution was precipitated with Fe3O4 under laboratory conditions when uranium concentration range from 0.5mg/L to 10mg/L. The Fe3O4 crystallization mechanism and immobilization of uranium was proved by XPS, XRD, TEM, FTIR and VSM methods. The results indicated that the cationic (including Fe2+, Fe3+ and U(VI)) migrate to cathode side under the electric field and the uranium was incorporated or adsorbed by Fe3O4 which was generated at cathode while the pH ranges between 2-7. The uranium-containing precipitate of Fe3O4 can exist stably at the acid concentration below 60g/L. Furthermore, the precipitate may be used as valuable resources for uranium or iron recycling, which resulted in no secondary pollution in the removal of uranium from aqueous solution.
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Affiliation(s)
- Bing-Qing Lu
- School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421001, China
| | - Mi Li
- School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421001, China; Key Laboratory of Radioactive Waste Treatment and Disposal, University of South China, Hengyang 421001, China.
| | - Xiao-Wen Zhang
- School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421001, China; Key Laboratory of Radioactive Waste Treatment and Disposal, University of South China, Hengyang 421001, China
| | - Chun-Mei Huang
- School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421001, China
| | - Xiao-Yan Wu
- School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421001, China; Key Laboratory of Radioactive Waste Treatment and Disposal, University of South China, Hengyang 421001, China
| | - Qi Fang
- School of Environmental Protection and Safety Engineering, University of South China, Hengyang 421001, China; Key Laboratory of Radioactive Waste Treatment and Disposal, University of South China, Hengyang 421001, China
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50
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Cîrcu M, Filip C. Closer to the polydopamine structure: new insights from a combined 13C/1H/2H solid-state NMR study on deuterated samples. Polym Chem 2018. [DOI: 10.1039/c8py00633d] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
13C/1H/2H ss-NMR on deuterated samples provide strong experimental evidence for the most probable monomer connectivity, π–π stacking, and the water dynamics in polydopamine.
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Affiliation(s)
- Monica Cîrcu
- National Institute for Research and Development of Isotopic and Molecular Technologies
- 400293 Cluj-Napoca
- Romania
| | - Claudiu Filip
- National Institute for Research and Development of Isotopic and Molecular Technologies
- 400293 Cluj-Napoca
- Romania
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