1
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Yuan G, Lu Y, Yang C. Effect of different synthesis methodologies on the adsorption of iodine. Heliyon 2023; 9:e16975. [PMID: 37484430 PMCID: PMC10361028 DOI: 10.1016/j.heliyon.2023.e16975] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/27/2023] [Accepted: 06/02/2023] [Indexed: 07/25/2023] Open
Abstract
Radioactive nuclides such as cesium, ruthenium, and iodine are difficult to remove in radioactive wastewater, which could be removed by coprecipitation of special chemical precipitants. In this study, dynamic Cu/Ag-mordenite (Cu/Ag-MOR) material was synthesized to be treated as the precipitant to selectively adsorb the iodine ion (I-) through controlled chemisorption combined with physical adsorption. XRD, XPS, and FTIR characterization demonstrated the successful modification of the MOR carrier surface by Cu/Ag particles and the high selectivity of the active component Cu (I) on the dynamic Cu/Ag-MOR material. SEM, TEM, and BET methods were used to characterize the Cu/Ag-MOR material, demonstrating these results: the MOR carried a stable porous structure, which allowed the silver to be well dispersed on its surface. The silver improved the copper distribution by being well-coated by the copper species. Furthermore, the analysis of the factors influencing the chemical plating of copper showed that the pH, the concentration of EDTA-2Na and the temperature all influenced the deposition rate of Cu2O. The activation energy for Cu2O deposition in dynamic Cu/Ag-MOR was 20.31 kJ/mol. The highest removal of I- in the presence of dynamic Cu/Ag-MOR could reach 99.1% in the adsorption tests. The adsorption kinetics was under a proposed second-order model, with chemisorption being the controlling step of the reaction. The adsorption/desorption experiments demonstrated the reusability of the nano-sorbent. It was also demonstrated that dynamic Cu/Ag-MOR materials showed good applicability in complex situations where multiple pollutants co-exist.
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Affiliation(s)
- Guowei Yuan
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan, 250022, China
| | - Cheng Yang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, China
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2
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Flores Castañeda M, Camacho-López S, Castrejón-Sánchez VH, Morales-Ramos CB, Camacho-López M. Study of the oxidation process of bismuth nanoparticles using NaClO. NANOTECHNOLOGY 2023; 34:205706. [PMID: 36652705 DOI: 10.1088/1361-6528/acb445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/18/2023] [Indexed: 06/17/2023]
Abstract
Bismuth nanoparticles (NPs) colloids synthesized in deionized water by laser ablation of solids in liquids technique (LASL) were oxidized using NaClO solutions at different concentrations. Oxidized nanomaterials were characterized using several techniques. The crystalline phases of the bismuth compound were determined using Raman microspectroscopy, and the crystallographic structure was identified by x-ray diffraction (XRD). The size and morphology of the obtained nanomaterials were studied by transmission electron microscopy (TEM). The chemical states were determined using x-ray photoelectron spectroscopy (XPS), and the optical properties of the colloids were characterized by UV-vis spectroscopy. The absorption spectra were analyzed using the Tauc method to determine the band gaps of the obtained nanomaterials. Our results showed morphological changes, starting from small nanoparticles to nanosheets and a mixture of nanosheets with hollow nanoparticles. Two kinds of nanomaterials were found depending on the NaClO solution concentration: Bi2O2CO3single phase and a mixture ofδ-Bi2O3and Bi2O2CO3. Some samples were tested as photocatalysts and showed good performance in the degradation of methylene blue in solution. To the best of our knowledge, this is the first study on the oxidation process of bismuth colloidal nanoparticles at room temperature.
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Affiliation(s)
- M Flores Castañeda
- Investigadores por México CONACYT-Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana, No. 3918, Zona Playitas, 22860, Ensenada, B.C., Mexico
- Departamento de Óptica, Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, Zona Playitas, Ensenada, Baja California 22860, Mexico
| | - S Camacho-López
- Departamento de Óptica, Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana 3918, Zona Playitas, Ensenada, Baja California 22860, Mexico
| | - V H Castrejón-Sánchez
- Tecnológico de Estudios Superiores de Jocotitlán, Carr. México-Atlacomulco Km 44.8, Ejido de San Juan y San Agustín, Jocotitlán. C. P. 50700, Mexico
| | - C B Morales-Ramos
- Laboratorio de Investigación y Desarrollo de Materiales Avanzados, Facultad de Química, Universidad Autónoma del Estado de México, Campus Rosedal, Km 14.5 Carretera Toluca-Atlacomulco, Toluca 50295, Mexico
| | - M Camacho-López
- Laboratorio de Investigación y Desarrollo de Materiales Avanzados, Facultad de Química, Universidad Autónoma del Estado de México, Campus Rosedal, Km 14.5 Carretera Toluca-Atlacomulco, Toluca 50295, Mexico
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3
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In-site interface growth of bismuth-based hydrothermal carbon using collagen fiber for selective removal of iodide ion from wastewater. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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4
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Hao Y, Tian Z, Liu C, Xiao C. Recent advances in the removal of radioactive iodine by bismuth-based materials. Front Chem 2023; 11:1122484. [PMID: 36762197 PMCID: PMC9902955 DOI: 10.3389/fchem.2023.1122484] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 01/09/2023] [Indexed: 01/25/2023] Open
Abstract
Nowadays, the demand for nuclear power is continue increasing due to its safety, cleanliness, and high economic benefits. Radioactive iodine from nuclear accidents and nuclear waste treatment processes poses a threat to humans and the environment. Therefore, the capture and storage of radioactive iodine are vital. Bismuth-based (Bi-based) materials have drawn much attention as low-toxicity and economical materials for removing and immobilizing iodine. Recent advances in adsorption and immobilization of vapor iodine by the Bi-based materials are discussed in this review, in addition with the removal of iodine from solution. It points out the neglected areas in this research topic and provides suggestions for further development and application of Bi-based materials in the removal of radioactive iodine.
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Affiliation(s)
- Yuxun Hao
- Institute of Zhejiang University-Quzhou, Quzhou, China,College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Zhenjiang Tian
- Institute of Zhejiang University-Quzhou, Quzhou, China,College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Chuanying Liu
- Institute of Zhejiang University-Quzhou, Quzhou, China,College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China,*Correspondence: Chuanying Liu, ; Chengliang Xiao,
| | - Chengliang Xiao
- Institute of Zhejiang University-Quzhou, Quzhou, China,College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China,*Correspondence: Chuanying Liu, ; Chengliang Xiao,
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5
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Efficient removal of iodide/iodate from aqueous solutions by Purolite A530E resin. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-023-08786-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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6
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Qassim MI, Khalill MM, Hamed AA, Gizawy MA, Atta E, El-Hag Ali A. Synthesis and evaluation of a novel polycarbonate grafted poly (glycidyl methacrylate) resin for sorption of 131I. Radiat Phys Chem Oxf Engl 1993 2023. [DOI: 10.1016/j.radphyschem.2023.110774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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7
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Highly Sensitive Adsorption and Detection of Iodide in Aqueous Solution by a Post-Synthesized Zirconium-Organic Framework. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238547. [PMID: 36500640 PMCID: PMC9738272 DOI: 10.3390/molecules27238547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 11/26/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
Effective methods of detection and removal of iodide ions (I-) from radioactive wastewater are urgently needed and developing them remains a great challenge. In this work, an Ag+ decorated stable nano-MOF UiO-66-(COOH)2 was developed for the I- to simultaneously capture and sense in aqueous solution. Due to the uncoordinated carboxylate groups on the UiO-66-(COOH)2 framework, Ag+ was successfully incorporated into the MOF and enhanced the intrinsic fluorescence of MOF. After adding iodide ions, Ag+ would be produced, following the formation of AgI. As a result, Ag+@UiO-66-(COOH)2 can be utilized for the removal of I- in aqueous solution, even in the presence of other common ionic ions (NO2-, NO3-, F-, SO42-). The removal capacity as high as 235.5 mg/g was calculated by Langmuir model; moreover, the fluorescence of Ag+@UiO-66-(COOH)2 gradually decreases with the deposition of AgI, which can be quantitatively depicted by a linear equation. The limit of detection toward I- is calculated to be 0.58 ppm.
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8
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Liu S, Zeng Y, Liu J, Li J, Peng H, Xie H, Zou H, Xiao C, Hua X, Bao J, Xian L, Li Y, Chi F. Efficient capture and stable storage of radioactive iodine by bismuth-based ZIF-8 derived carbon materials as adsorbents. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Water-stable porous Al24 Archimedean solids for removal of trace iodine. Nat Commun 2022; 13:6632. [PMID: 36333329 PMCID: PMC9636137 DOI: 10.1038/s41467-022-34296-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
In this paper, we report a unique type of core-shell crystalline material that combines an inorganic zeolitic cage structure with a macrocyclic host arrangement and that can remove trace levels of iodine from water effectively. These unique assemblies are made up of an inorganic Archimedean truncatedhexahedron (tcu) polyhedron in the kernel which possesses six calixarene-like shell cavities. The cages have good adaptability to guests and can be assembled into a series of supramolecular structures in the crystalline state with different lattice pore shapes. Due to the unique core-shell porous structures, the compounds are not only stable in organic solvents but also in water. The characteristics of the cages enable rapid iodine capture from low concentration aqueous I2/KI solutions (down to 4 ppm concentration). We have studied the detailed process and mechanism of iodine capture and aggregation at the molecular level. The facile synthesis, considerable adsorption capacity, recyclability, and β- and γ-radiation resistance of the cages should make these materials suitable for the extraction of iodine from aqueous effluent streams (most obviously, radioactive iodide produced by atomic power generation). The removal of radioactive elements is important to human health and sustainable development. Here, the authors reveal the synthesis of water-stable Archimedean solids based on the earth-abundant element for the fast removal of trace iodine.
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10
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Jeong H, Lee DW, Hong SJ, Kim J, Kim M, Kim J, Lee HS, Park TH, Kim HK, Park JI, Kim JY, Lim SH, Hyeon T, Han B, Bae SE. Selective removal of radioactive iodine from water using reusable Fe@Pt adsorbents. WATER RESEARCH 2022; 222:118864. [PMID: 35870393 DOI: 10.1016/j.watres.2022.118864] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 07/07/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Environmental damage from serious nuclear accidents should be urgently restored, which needs the removal of radioactive species. Radioactive iodine isotopes are particularly problematic for human health because they are released in large amounts and retain radioactivity for a substantial time. Herein, we prepare platinum-coated iron nanoparticles (Fe@Pt) as a highly selective and reusable adsorbent for iodine species, i.e., iodide (I-), iodine (I2), and methyl iodide (CH3I). Fe@Pt selectively separates iodine species from seawater and groundwater with a removal efficiency ≥ 99.8%. The maximum adsorption capacity for the iodine atom of all three iodine species was determined to be 25 mg/g. The magnetic properties of Fe@Pt allow for the facile recovery and reuse of Fe@Pt, which remains stable with high efficiency (97.5%) over 100 uses without structural and functional degradation in liquid media. Practical application to the removal of radioactive 129I and feasibility for scale-up using a 20 L system demonstrate that Fe@Pt can function as a reusable adsorbent for the selective removal of iodine species. This systematic procedure is a standard protocol for designing highly active adsorbents for the clean separation and removal of various chemical species dissolved in wastewater.
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Affiliation(s)
- Hwakyeung Jeong
- Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea
| | - Dong Woo Lee
- Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea
| | - Sung Jun Hong
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Jihye Kim
- Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea
| | - Minsik Kim
- Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea
| | - Junhyuck Kim
- Radioactive Waste Chemical Analysis Center, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea
| | - Hyeon Seok Lee
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea; School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Tae-Hong Park
- Radioactive Waste Chemical Analysis Center, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea; Department of Radiochemistry, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Hee-Kyung Kim
- Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea
| | - Jai Il Park
- Radioactive Waste Chemical Analysis Center, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea
| | - Jong-Yun Kim
- Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea; Department of Radiochemistry, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Sang Ho Lim
- Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea; Department of Radiochemistry, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea; School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Byungchan Han
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea.
| | - Sang-Eun Bae
- Nuclear Chemistry Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Republic of Korea; Department of Radiochemistry, University of Science and Technology, Daejeon 34113, Republic of Korea.
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11
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Adsorption-induced chemical reaction for in situ immobilization of radioactive anions on pristine β-Bi2O3 microflowers. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Zuarez-Chamba M, Rajendran S, Herrera-Robledo M, Priya AK, Navas-Cárdenas C. Bi-based photocatalysts for bacterial inactivation in water: Inactivation mechanisms, challenges, and strategies to improve the photocatalytic activity. ENVIRONMENTAL RESEARCH 2022; 209:112834. [PMID: 35122745 DOI: 10.1016/j.envres.2022.112834] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/15/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
Bi-based photocatalysts have been considered suitable materials for water disinfection under natural solar light due to their outstanding optical and electronic properties. However, until now, there are not extensive reviews about the development of Bi-based materials and their application in bacterial inactivation in aqueous solutions. For this reason, this work has focused on summarizing the state of the art related to the inactivation of Gram- and Gram + pathogenic bacteria under visible light irradiation using different Bi-based micro and nano structures. In this sense, the photocatalytic bacterial inactivation mechanisms are analyzed, considering several modifications. The factors that can affect the photocatalytic performance of these materials in real conditions and at a large scale (e.g., water characteristics, pH, light intensity, photocatalyst dosage, and bacteria level) have been studied. Furthermore, current alternatives for improving the photocatalytic antibacterial activity and reuse of Bi-based materials (e.g., surface engineering, crystal facet engineering, doping, noble metal coupling, heterojunctions, Z-scheme junctions, coupling with graphene derivatives, magnetic composites, immobilization) have been explored. According to several reports, inactivation rate values higher than 90% can be achieved by using the modified Bi-based micro/nano structures, which become them excellent candidates for photocatalytic water disinfection. However, these innovative photocatalytic materials bring a variety of future difficulties and opportunities in water disinfection.
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Affiliation(s)
| | - Saravanan Rajendran
- Department of Mechanical Engineering, Faculty of Engineering, University of Tarapaca, Avda. General Velásquez, Arica, Chile
| | | | - A K Priya
- Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, India
| | - Carlos Navas-Cárdenas
- School of Chemical Sciences and Engineering, Universidad Yachay Tech, Urcuquí, Ecuador.
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13
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Iodide removal by a symmetric pulsed current-assisted electrochemical method using bismuth oxide composite electrode. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08262-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Weber M, Rodriguez RD, Zahn DRT, Stöwe K, Mehring M. Polymorphism and Visible-Light-Driven Photocatalysis of Doped Bi 2O 3:M (M = S, Se, and Re). Inorg Chem 2022; 61:1571-1589. [PMID: 34982539 DOI: 10.1021/acs.inorgchem.1c03330] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
δ-Bi2O3:M (M = S, Se, and Re) with an oxygen-defective fluorite-type structure is obtained by a coprecipitation method starting from the bismuth oxido cluster [Bi38O45(OMc)24(dmso)9]·2dmso·7H2O (A) in the presence of additives such as Na2SO4, Na2SeO4, NH4ReO4, Na2SeO3·5H2O, and Na2SO3. The coprecipitation of the starting materials with aqueous NaOH results in the formation of alkaline reaction mixtures, and the cubic bismuth(III)-based oxides Bi14O20(SO4) (1c), Bi14O20(SeO4) (2c), Bi14O20(ReO4.5) (3c), Bi12.25O16.625(SeO3)1.75 (4c), and Bi10.51O14.765(SO3)0.49(SO4)0.51 (5c) are obtained after microwave-assisted heating; formation of compound 5c is the result of partial oxidation of sulfur. The compounds 1c, 2c, 4c, and 5c absorb UV light only, whereas compound 3c absorbs in the visible-light region of the solar spectrum. Thermal treatment of the as-prepared metastable bismuth(III) oxide chalcogenates 1c and 2c at T = 600 °C provides a monotropic phase transition into their tetragonal polymorphs Bi14O20(SO4) (1t) and Bi14O20(SeO4) (2t), while compound 3c is transformed into the tetragonal modification of Bi14O20(ReO4.5) (3t) after calcination at T = 700 °C. Compounds of the systems Bi2O3-SOx (x = 2 and 3) and Bi2O3-Re2O7 are thermally stable up to T = 800 °C, whereas compounds of the system Bi2O3-SeO3 completely lose SeO3. Thermal treatment of 4c and 5c in air results in the oxidation of the tetravalent to hexavalent sulfur and selenium, respectively, upon heating to T = 400-500 °C. The as-prepared cubic bismuth(III)-based oxides 1c-5c were studied with regard to the photocatalytic decomposition of rhodamine B under visible-light irradiation with compound 3c showing the highest turnover and efficiency.
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Affiliation(s)
- Marcus Weber
- Fakultät für Naturwissenschaften, Institut für Chemie, Professur Koordinationschemie, Technische Universität Chemnitz, Chemnitz 09107, Germany.,Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Technische Universität Chemnitz, Rosenbergstraße 6, Chemnitz 09107, Germany
| | - Raul D Rodriguez
- Fakultät für Naturwissenschaften, Institut für Physik, Professur Halbleiterphysik, Technische Universität Chemnitz, Chemnitz 09107, Germany.,Tomsk Polytechnic University, Lenina avenue 30, 634034 Tomsk, Russia
| | - Dietrich R T Zahn
- Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Technische Universität Chemnitz, Rosenbergstraße 6, Chemnitz 09107, Germany.,Fakultät für Naturwissenschaften, Institut für Physik, Professur Halbleiterphysik, Technische Universität Chemnitz, Chemnitz 09107, Germany
| | - Klaus Stöwe
- Fakultät für Naturwissenschaften, Institut für Chemie, Professur Chemische Technologie, Technische Universität Chemnitz, Chemnitz 09107, Germany
| | - Michael Mehring
- Fakultät für Naturwissenschaften, Institut für Chemie, Professur Koordinationschemie, Technische Universität Chemnitz, Chemnitz 09107, Germany.,Center for Materials, Architectures and Integration of Nanomembranes (MAIN), Technische Universität Chemnitz, Rosenbergstraße 6, Chemnitz 09107, Germany
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15
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Wang T, Zhao H, Zhao X, Liu D. One-step preparation of Ag0-MOF composites for effective removal of iodide from water. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Ding H, Yu H, Han Q. Transformation of phase and heterojunction type by using HAc-adsorbed Bi(NO 3) 3 as a Bi source. J Colloid Interface Sci 2021; 604:429-440. [PMID: 34271494 DOI: 10.1016/j.jcis.2021.07.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/02/2021] [Accepted: 07/04/2021] [Indexed: 10/20/2022]
Abstract
Generally, preparing high-efficiency heterojunction photocatalysts via a facile room-temperature route is attractive from the perspective of energy and labor saving. Herein, by using dried and glacial acetic acid (HAc)-adsorbed bismuth nitrate, instead of Bi(NO3)3·5H2O, as a Bi source, a β-Bi2O3/Bi5O7I heterojunction with well dispersed flowery hierarchical architecture was synthesized, which endows it with high surface area, open channels and good light harvest. More importantly, the change of the precursor achieved a successful transformation for both of phase and heterojunction type, i.e. from type-Ⅰ BiOI/[Bi6O5(OH)3](NO3)5·3H2O (labeled as BiOI/BBN) to Z-scheme β-Bi2O3/Bi5O7I heterojunction. Since both β-Bi2O3 and Bi5O7I are visible light responsive, β-Bi2O3/Bi5O7I exhibited improved visible-light photocatalytic activity for the degradation of tetracycline (TC) and malachite green (MG) with apparent reactant rate (kapp) values about 10 and 11 times higher than those of BiOI/BBN. Besides, the presence of more oxygen vacancies also contributed to the enhancement in photocatalytic performance.
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Affiliation(s)
- Huiwei Ding
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Huimei Yu
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qiaofeng Han
- Key Laboratory for Soft Chemistry and Functional Materials, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China.
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17
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Chen J, Jiao Y, Chen K, Wang P, Wang J, Mao P, Jiang J, He M, Liu Y, Gong C, Yang Y. Hierarchically mesoporous mixed copper oxide/calcined layered double hydroxides composites for iodide high-efficiency elimination. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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18
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Gendy EA, Oyekunle DT, Ali J, Ifthikar J, El-Motaleb Mosad Ramadan A, Chen Z. High-performance removal of radionuclides by porous organic frameworks from the aquatic environment: A review. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2021; 238-239:106710. [PMID: 34481100 DOI: 10.1016/j.jenvrad.2021.106710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
Dealing with unwanted nuclear waste is still a serious issue from the point of view of humans and the environment because of its harmful and dangerous effects. Recently, porous organic frameworks (POFs) have gained an increasing concern as effective materials in the removal of various types of hazardous metal ions, especially radioactive metal ions. POFs are a unique class that included covalent organic frameworks (COFs) and metal-organic frameworks (MOFs) with strong covalent bonds, large surface area, high adsorption capacity, tunable porosity, and a porous structure with more efficient than conventional adsorbents. This review highlights the recent developments of POFs for the rapid elimination of radionuclide. The unique characteristics, adsorption properties, and interaction mechanisms between radioactive metal ions and the POF-based materials are summarized. Also, prospects for enhancing the performance of POFs to capture radioactive metal ions are discussed.
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Affiliation(s)
- Eman Abdelnasser Gendy
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Chemistry Department, Faculty of Science, Kafrelsheikh University, El-Geish Street, P.O. Box 33516, Kafrelsheikh, Egypt
| | - Daniel Temitayo Oyekunle
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Jawad Ali
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Jerosha Ifthikar
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China
| | - Abd El-Motaleb Mosad Ramadan
- Chemistry Department, Faculty of Science, Kafrelsheikh University, El-Geish Street, P.O. Box 33516, Kafrelsheikh, Egypt
| | - Zhuqi Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China.
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Robshaw TJ, Turner J, Kearney S, Walkley B, Sharrad CA, Ogden MD. Capture of aqueous radioiodine species by metallated adsorbents from wastestreams of the nuclear power industry: a review. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04818-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Abstract
Abstract
Iodine-129 poses a significant challenge in the drive towards lowering radionuclide emissions from used nuclear fuel recycling operations. Various techniques are employed for capture of gaseous iodine species, but it is also present, mainly as iodide anions, in problematic residual aqueous wastestreams, which have stimulated research interest in technologies for adsorption and retention of the radioiodine. This removal effort requires specialised adsorbents, which use soft metals to create selectivity in the challenging chemical conditions. A review of the literature, at laboratory scale, reveals a number of organic, inorganic and hybrid adsorbent matrices have been investigated for this purpose. They are functionalised principally by Ag metal, but also Bi, Cu and Pb, using numerous synthetic strategies. The iodide capacity of the adsorbents varies from 13 to 430 mg g−1, with ion-exchange resins and titanates displaying the highest maximum uptakes. Kinetics of adsorption are often slow, requiring several days to reach equilibrium, although some ligated metal ion and metal nanoparticle systems can equilibrate in < 1 h. Ag-loaded materials generally exhibit superior selectivity for iodide verses other common anions, but more consideration is required of how these materials would function successfully in industrial operation; specifically their performance in dynamic column experiments and stability of the bound radioiodine in the conversion to final wasteform and subsequent geological storage.
Article highlights
Metallated adsorbents for the capture and retention of radioiodine in the nuclear industry are assessed.
The strengths and weaknesses of organic, inorganic and hybrid support matrices and loading mechanisms are discussed.
Pathways for progression of this technology are proposed.
Graphic abstract
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20
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Tian Z, Chee TS, Zhu L, Duan T, Zhang X, Lei L, Xiao C. Comprehensive comparison of bismuth and silver functionalized nickel foam composites in capturing radioactive gaseous iodine. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:125978. [PMID: 34015715 DOI: 10.1016/j.jhazmat.2021.125978] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/13/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
Developing an efficient and cheap iodine sorbent is of great practical significance in the modern nuclear industry. In this work, novel bismuth and silver functionalized Ni foam composites as iodine sorption materials (Bi-Ni foam and Ag-Ni foam) were successfully prepared via a simple solvothermal method. Through a series of iodine sorption experiments and characterization methods, iodine capture properties and corresponding sorption mechanism were comprehensively compared and thoroughly revealed. The results show that the core-sheath structure formed by the solvothermal reaction can supply more active sites (Bi0 or Ag0 particles) for the contact of radioactive iodine gas, thereby improving the sorption capacity of sorbents. Compared with Ag-Ni foam (456 mg/g), Bi-Ni foam exhibits a higher iodine capture capacity (658 mg/g), whereas silver-based material has a faster sorption kinetics. Such excellent sorption performances were attributed to the chemical reaction between Bi0/Ag0 particles and iodine gas, generating stable BiI3/AgI. In addition, this type of sorbents inherits the external structure of the Ni foam skeleton, decreasing the physically sorbed iodine, and can be prepared in different shapes and sizes, which is of great practical significance.
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Affiliation(s)
- Zhenjiang Tian
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Tien-Shee Chee
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Lin Zhu
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Tao Duan
- State Key Laboratory of Environment-friendly Energy Materials, National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Nuclear Waste and Environmental Safety Key Laboratory of Defense, School of National Defence Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China.
| | - Xingwang Zhang
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Lecheng Lei
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China
| | - Chengliang Xiao
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China; Institute of Zhejiang University-Quzhou, 78 Jiuhua Boulevard North, Quzhou 324000, China.
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21
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Tesfay Reda A, Zhang D, Xu X, Pan M, Chang C, Muhire C, Liu X, Jiayi S. Bismuth-impregnated aluminum/copper oxide-pillared montmorillonite for efficient vapor iodine sorption. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118848] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Jo SE, Choi JW, Choi SJ. Synthesis of Silver-Impregnated Magnetite Mesoporous Silica Composites for Removing Iodide in Aqueous Solution. TOXICS 2021; 9:175. [PMID: 34437493 PMCID: PMC8402580 DOI: 10.3390/toxics9080175] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 11/17/2022]
Abstract
Mag@silica-Ag composite has a high sorption ability for I- in aqueous solution due to its high surface area and strong affinity for the studied anion. The material adsorbed I- rapidly during the initial contact time (in 45 min, η = 80%) and reached adsorption equilibrium after 2 h. Moreover, mag@silica-Ag proved to selectively remove I- from a mixture of Cl-, NO3- and I-. The adsorption behavior fitted the Langmuir isotherm perfectly and the pseudo-second-order kinetic model. Based on the Langmuir isotherm, the maximum adsorption capacity of mag@silica-Ag was 0.82 mmol/g, which is significantly higher than previously developed adsorbents. This study introduces a practical application of a high-capacity adsorbent in removing radioactive I- from wastewaters.
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Affiliation(s)
- Sang-Eun Jo
- School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea;
| | - Jung-Weon Choi
- Green Carbon Catalysis Center, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong, Daejeon 34114, Korea;
| | - Sang-June Choi
- School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Korea;
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23
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Core-shell ZnO@Cu2O encapsulated Ag NPs nanocomposites for photooxidation-adsorption of iodide anions under visible light. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118328] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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24
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Silver-doped MIL-101(Cr) for rapid and effective capture of iodide in water environment: exploration on adsorption mechanism. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-07705-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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25
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Tokunaga K, Takahashi Y, Tanaka K, Kozai N. Effective removal of iodate by coprecipitation with barite: Behavior and mechanism. CHEMOSPHERE 2021; 266:129104. [PMID: 33310356 DOI: 10.1016/j.chemosphere.2020.129104] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 11/20/2020] [Accepted: 11/22/2020] [Indexed: 06/12/2023]
Abstract
Radioactive iodine (129I) is of great concern owing to its high mobility in the environment and long-term radiotoxicity. However, there is a lack of effective techniques for removing iodate (IO3-) from aqueous solution. This study aims to develop a new technique for removing radioactive iodate from contaminated solution by using barite (BaSO4). We examined the coprecipitation mechanism of iodate by barite at the molecular level to determine the optimum conditions for iodate removal. Results showed that iodate was effectively removed from the aqueous solution by coprecipitation even in the presence of competitive anions. Based on comparison of our method with previous techniques, the iodate removal efficiency by barite was determined to be about two orders of magnitude greater than that by hydrotalcite-like layered double hydroxide at 10 mmol L-1 Cl-. Extended X-ray absorption fine structure analysis indicated that the incorporated iodate was strongly bound to the crystal lattice of barite by substituting the sulfate site in the structure when the iodine concentration was low. The charge compensation problem from the IO3- substitution in the SO42- site was achieved by the substitution of Na+-IO3- pairs at the nearest Ba2+ site. Given the high removal efficiency and strong binding of iodate to barite, coprecipitation with barite is a promising tool for removing radioactive iodate from various aqueous solutions contaminated with iodate.
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Affiliation(s)
- Kohei Tokunaga
- Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, Tomata, Okayama, 708-0698, Japan; Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan.
| | - Yoshio Takahashi
- Department of Earth and Planetary Science, The University of Tokyo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kazuya Tanaka
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
| | - Naofumi Kozai
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki, 319-1195, Japan
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26
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Electrochemically triggered iodide-vacancy BiOI film for selective extraction of iodide ion from aqueous solutions. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118120] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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27
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Kumar V, Katyal D, Nayak S. Removal of heavy metals and radionuclides from water using nanomaterials: current scenario and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:41199-41224. [PMID: 32829433 DOI: 10.1007/s11356-020-10348-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
There is an increase in concern about the hazardous effects of radioactivity due to the presence of undesirable radioactive substances in our vicinity. Nuclear accidents such as Chernobyl (1986) and Fukushima (2011) have further raised concerns towards such incidents which have led to contamination of water bodies. Conventional methods of water purification are less efficient in decontamination of radioisotopes. They are usually neither cost-effective nor environmentally friendly. However, nanotechnology can play a vital role in providing practical solutions to this problem. Nano-engineered materials like metal oxides, metallic organic frameworks, and nanoparticle-impregnated membranes have proven to be highly efficient in treating contaminated water. Their unique characteristics such as high adsorption capacity, large specific surface area, high tensile strength, and excellent biocompatibility properties make them useful in the field of water purification. This review explores the present status and future prospects of nanomaterials as the next-generation water purification systems that can play an important role in the removal of heavy metals and radioactive contaminants from aqueous solutions.
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Affiliation(s)
- Vinod Kumar
- University School of Environment Management (USEM), Guru Gobind Singh Indraprastha University, Dwarka, Delhi, 110078, India
- Division of CBRN Defense, Institute of Nuclear Medicine and Allied Sciences, Timarpur, Delhi, 110054, India
| | - Deeksha Katyal
- University School of Environment Management (USEM), Guru Gobind Singh Indraprastha University, Dwarka, Delhi, 110078, India.
| | - SwayangSiddha Nayak
- Division of CBRN Defense, Institute of Nuclear Medicine and Allied Sciences, Timarpur, Delhi, 110054, India
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28
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Jiao H, Li Y, Gao K, Zhao J, Wang C, Li M, Na P. Efficient removal of radioactive iodide by three-dimensional Cu@Cu O: An adsorption and electrocatalytic oxidation coupling process. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124964] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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29
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Li H, Li Y, Li B, Liu D, Zhou Y. Highly selective anchoring silver nanoclusters on MOF/SOF heterostructured framework for efficient adsorption of radioactive iodine from aqueous solution. CHEMOSPHERE 2020; 252:126448. [PMID: 32203781 DOI: 10.1016/j.chemosphere.2020.126448] [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: 01/08/2020] [Revised: 03/02/2020] [Accepted: 03/07/2020] [Indexed: 06/10/2023]
Abstract
A series of Ag-modified MOF/SOF heterostructured framework adsorbents (Ag-MSHC) with strong binding of iodine were prepared by anchoring silver nanoclusters on MOF/SOF heterostructured framework (MSHC). Morphological transformation process of six novel Ag-MSHC adsorbents can be realized by tailoring the molar ratio of Fe3+, TMA (1,3,5-Tricarboxybenzen) and MA (melamine), finally resulting in a combination of MOFs (metal-organic frameworks) and SOFs (supramolecular organic framework). Among six adsorbents, Ag-MSHC-6 exhibited an extremely strong affinity towards I-, whereas the maximum adsorption capacity of I- reaches 771.6 mg/g. An increased tendency of I- sorption occurred from Ag-MSHC-1 to Ag-MSCH-6 when the molar ratio of Fe3+ gradually decreased because the content of Fe3+ in topological structure of Ag-MSHC can hinder the incorporation of silver nanoclusters into Ag-MSHC and further influences the irreversible interactions between Ag2O and I-. Besides, FT-IR, XPS, TGA and SEM were used to discuss the microstructures and chemical composition of MSHC and Ag-MSHC, and we also performed batch adsorption experiments to demonstrate the iodine sorption performance and mechanism by Ag-MSHC. Taking advantage of this combination of MOFs and SOFs, high degree of doping of silver nanoclusters as well as its strong binding ability of iodine, Ag-MSHC can be considered as a superior adsorbent for radioactive iodine extraction.
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Affiliation(s)
- Hualun Li
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Ye Li
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China.
| | - Bolin Li
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Dongbin Liu
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
| | - Yuzhi Zhou
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
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30
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Mao P, Yu X, Liu K, Sun A, Shen J, Yang Y, Ni L, Yue F, Wang Z. Rapid and reversible adsorption of radioactive iodide from wastewaters by green and low-cost palygorskite-based microspheres. J Radioanal Nucl Chem 2020. [DOI: 10.1007/s10967-020-07231-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Activating Bi2O3 by ball milling to induce efficiently oxygen vacancy for incorporating iodide anions to form BiOI. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2020.110739] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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32
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Highly efficient removal of iodine ions using MXene-PDA-Ag2Ox composites synthesized by mussel-inspired chemistry. J Colloid Interface Sci 2020; 567:190-201. [DOI: 10.1016/j.jcis.2020.02.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/03/2020] [Accepted: 02/05/2020] [Indexed: 02/05/2023]
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33
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Yu Y, Jin G, Fang Y, Xu Z, Lü X, Chen C. Potential-aided recovery of iodide using 2-D nanosheet Cu O coating polymer/graphene/carbon fibers composite. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2019.11.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Jung IK, Jo Y, Han SC, Yun JI. Efficient removal of iodide anion from aqueous solution with recyclable core-shell magnetic Fe 3O 4@Mg/Al layered double hydroxide (LDH). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135814. [PMID: 31972945 DOI: 10.1016/j.scitotenv.2019.135814] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 11/20/2019] [Accepted: 11/26/2019] [Indexed: 06/10/2023]
Abstract
Magnetic Mg/Al layered double hydroxides (LDH) with three cationic ratios (Mg/Al = 2:1, 3:1, and 4:1) were successfully synthesized and utilized for the first time in an iodide adsorption study. The effects of the Mg/Al ratio of LDH on iodide adsorption were investigated, and physicochemical properties of synthetic LDHs depending on Mg/Al ratio were confirmed by XRD, TEM, ICP-OES, VSM, Zeta-potential, and BET analyses. The ferrimagnetic property was well preserved even after a coating of LDH on magnetite irrespective of the Mg/Al ratio. Among the three Mg/Al ratios, the calcined Fe3O4@4:1 Mg/Al LDH exhibited excellent performance for iodide removal with 105.04 mg/g of the maximum iodide adsorption capacity due to its wide interlayer spacing and largest BET surface area. In the presence of competing carbonate anions, the Fe3O4@4:1 LDH showed removal rate of >80% at a dosage of over 3 g/L solid to liquid ratio. The recyclability test of Fe3O4@4:1 LDH showed that the removal performance for iodide is maintained at >80% even during the first to the fourth cycles. These results demonstrated that the magnetic Mg/Al LDH adsorbent can be effectively utilized for remediation of radioactive iodide anions with high efficiency and economics.
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Affiliation(s)
- Il-Kwon Jung
- Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yongheum Jo
- Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Sol-Chan Han
- Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jong-Il Yun
- Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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35
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Chen J, Wang J, Gao Q, Zhang X, Liu Y, Wang P, Jiao Y, Zhang Z, Yang Y. Enhanced removal of I - on hierarchically structured layered double hydroxides by in suit growth of Cu/Cu 2O. J Environ Sci (China) 2020; 88:338-348. [PMID: 31862075 DOI: 10.1016/j.jes.2019.09.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
To further improve the removal ability of layered double hydroxide (LDH) for iodide (I-) anions from wastewater, we prepared hierarchically porous Cu5Mg10Al5-LDH and used as a matrix for in suit growth of Cu/Cu2O on its surface, forming Cu/Cu2O-LDH, which was characterized and applied as an adsorbent. Results displayed high I- saturation uptake capability (137.8 mg/g) of Cu/Cu2O-LDH compared with Cu5Mg10Al5-LDH (26.4 mg/g) even thermal activated LDH (76.1 mg/g). Thermodynamic analysis showed that the reaction between I- anions and Cu/Cu2O-LDH is a spontaneous and exothermic. Uptake kinetics analysis exhibited that adsorption equilibrium can be reached after 265 min. Additionally, the adsorbent showed satisfactory selectivity in the presence of competitive anions (e.g., SO42-), and could achieve good adsorption performance in a wide pH range of 3-8. A cooperative adsorption mechanism was proposed on the basis of the following two aspects: (1) ion exchange between iodide and interlayer anions; (2) the adsorption performance of Cu, Cu(II) and Cu2O for I-. Meanwhile, the difference between the adsorption mechanism of Cu/Cu2O-LDH, Cu5Mg10Al5-LDH and Cu5Mg10Al5-CLDH adsorbents was also elaborated and verified.
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Affiliation(s)
- Jiuyu Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Junyi Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qianhong Gao
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaomei Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ying Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Peng Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yan Jiao
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Zongxiang Zhang
- Jiangsu Environmental Protection Key Laboratory of Monitoring for Organic Pollutants in Soil, Taizhou Environmental Monitoring Center, Taizhou 225300, China
| | - Yi Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China.
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36
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Simple thermal decomposition of bismuth citrate to Bi/C/α-Bi2O3 with enhanced photocatalytic performance and adsorptive ability. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.10.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Chen S, Qi Y, Cossa JJ, Deocleciano Salomao Dos SI. Efficient removal of radioactive iodide anions from simulated wastewater by HDTMA-geopolymer. PROGRESS IN NUCLEAR ENERGY 2019. [DOI: 10.1016/j.pnucene.2019.103112] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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38
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Xiong Y, Xu L, Nie K, Jin C, Sun Q, Xu X. Green Construction of an Oil-Water Separator at Room Temperature and Its Promotion to an Adsorption Membrane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11071-11079. [PMID: 31380650 DOI: 10.1021/acs.langmuir.9b01480] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Underwater superoleophobic membranes as an effective means of resisting oil stains are often subjected to cumbersome modification procedures, limited stability, and difficult expansion of assembly. To develop simple, green, stable, and scalable underwater superoleophobic films, herein, cellulose-based oil-water separators with high-efficiency oil purification were constructed by using commercial carboxymethocel (CMC) as a solute and a dimethyl sulfoxide-modified ionic liquid as a solvent. Owing to the superior dissolution, regenerability, and gelation of CMC, the metal mesh and gauze can be imparted with an excellent oleophobic ability through simple dipping, spraying, and coating of the CMC solution. As a result, these modified functionalized devices exhibit a purification capacity of more than 99.5% for various oil-water mixtures. Unexpectedly, the CMC gel coating also shields the gloves from organic solvents. Significantly, when the CMC solution is applied to an adsorption membrane, it not only endows the film with excellent oil-water separation characteristics but also enhances the adsorption amount and rate of the adsorbent. Therefore, CMC-based oleophobic materials can be widely developed and applied to a variety of fields that require oleophobic properties.
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Affiliation(s)
- Ye Xiong
- School of Engineering , Zhejiang A&F University , Hangzhou , Zhejiang Province 311300 , P. R. China
| | - Lulu Xu
- School of Engineering , Zhejiang A&F University , Hangzhou , Zhejiang Province 311300 , P. R. China
| | - Kangchen Nie
- School of Engineering , Zhejiang A&F University , Hangzhou , Zhejiang Province 311300 , P. R. China
| | - Chunde Jin
- School of Engineering , Zhejiang A&F University , Hangzhou , Zhejiang Province 311300 , P. R. China
| | - Qingfeng Sun
- School of Engineering , Zhejiang A&F University , Hangzhou , Zhejiang Province 311300 , P. R. China
| | - Xijin Xu
- School of Physics and Technology , University of Jinan , Jinan , Shandong Province 250022 , P. R. China
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39
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Wang H, Wang S, Zhao M, Li Y, Kong F. Removal of arsenic from aqueous solution using microflower-like δ-Bi2O3 as adsorbent: adsorption characteristics and mechanisms. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2019.1647228] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Hongsheng Wang
- School of Environmental Science & Engineering, Qingdao University , Qingdao , China
| | - Sen Wang
- School of Environmental Science & Engineering, Qingdao University , Qingdao , China
| | - Min Zhao
- School of Environmental Science & Engineering, Qingdao University , Qingdao , China
| | - Yue Li
- School of Environmental Science & Engineering, Qingdao University , Qingdao , China
| | - Fanlong Kong
- School of Environmental Science & Engineering, Qingdao University , Qingdao , China
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40
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Ye Z, Chen L, Liu C, Ning S, Wang X, Wei Y. The rapid removal of iodide from aqueous solutions using a silica-based ion-exchange resin. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2018.12.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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41
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Facile synthesis of mesoporous Fe-based MOFs loading bismuth with high speed adsorption of iodide from solution. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2018.10.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Chen J, Gao Q, Zhang X, Liu Y, Wang P, Jiao Y, Yang Y. Nanometer mixed-valence silver oxide enhancing adsorption of ZIF-8 for removal of iodide in solution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 646:634-644. [PMID: 30059924 DOI: 10.1016/j.scitotenv.2018.07.298] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 07/19/2018] [Accepted: 07/20/2018] [Indexed: 06/08/2023]
Abstract
Nano mixed-valence silver oxide (Ag2O-Ag2O3) modified the zeolitic imidazolate framework-8 (ZIF-8) composite (Ag2O-Ag2O3@ZIF-8) was firstly prepared via a simple and efficient method, characterized and applied for iodide ion (I-) uptake from simulated radioactive wastewater. The results showed that Ag2O-Ag2O3 nanoparticles doped and uniformly dispersed on the surface of ZIF-8 matrix. The adsorption capacity of the as-synthesized adsorbents increased with the increasing Ag doped amount, and the maximum adsorption capacity for 20%-Ag2O-Ag2O3@ZIF-8 was 232.12 mg/g. The calculated thermodynamic parameters indicating that the adsorption was a spontaneous and exothermic. It was worth mentioning that each Ag-based adsorbent exhibited high uptake rate of I-, and all the adsorption tests were equilibrated for a few minutes. This could be ascribed to its large specific surface area and the absolutely dominant position of chemical adsorption for as-prepared samples. Furthermore, the adsorption was barely affected by pH and competitive anions (e.g. Cl-, SO42-, CO32-), even in simulated salt lake water. Additionally, a mechanism explaining the excellent properties for adsorbents could be epitomized into three aspects, namely, the uptake performance of Ag2O for I-, the strong oxidization of Ag2O3 for I-, and the adsorption of AgI for I2.
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Affiliation(s)
- Jiuyu Chen
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Qianhong Gao
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xiaomei Zhang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ying Liu
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Peng Wang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yan Jiao
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Yi Yang
- Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control (AEMPC), Nanjing University of Information Science & Technology, Nanjing 210044, China.
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43
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Li J, Wang M, Liu G, Zhang L, He Y, Xing X, Qian Z, Zheng J, Xu C. Enhanced Iodide Removal from Water by Nano-Silver Modified Anion Exchanger. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b04635] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Jiao Li
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
| | - Manxiang Wang
- Center for Energy Storage Research, Green City Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Guicheng Liu
- Department of Physics, Dongguk University, Seoul 04620, Republic of Korea
| | - Liang Zhang
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
| | - Yali He
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
| | - Xing Xing
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
| | - Zhi Qian
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
| | - Jianzhong Zheng
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
| | - Congbin Xu
- College of Resources and Environment, University of Chinese Academy of Sciences, 19 A Yuquan Road, Beijing, 100049, China
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44
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Liu L, Chen N, Lei Y, Xue X, Li L, Wang J, Komarneni S, Zhu H, Yang D. Micro-nanostructured δ-Bi 2O 3 with surface oxygen vacancies as superior adsorbents for SeO x2- ions. JOURNAL OF HAZARDOUS MATERIALS 2018; 360:279-287. [PMID: 30125744 DOI: 10.1016/j.jhazmat.2018.08.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 08/02/2018] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Removal of the toxic selenium compounds, selenite (SeO32-) and selenate (SeO42-), from contaminated water is imperative for environmental protection in both developing and industrialized countries. Providing high selectivity adsorbents to the target ions is a big challenge. Here we report that micro sphere-like δ-Bi2O3 (MS-δ-Bi2O3) with surface oxygen vacancy defects can capture hypertoxic SeOx2- anions from aqueous solutions with superior capacity and fast uptake rate. High capture selectivity to SeO32- anions is observed, since the O atoms of SeO32- anions fill the oxygen vacancies on the (111) facet of δ-Bi2O3 forming a stable complex structure. This mechanism is distinctly different from other known mechanisms for anion removal, and implies that we may utilize surface defects as highly efficient and selective sites to capture specific toxic species. Thus, we present a new route here to design superior adsorbents for toxic ions.
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Affiliation(s)
- Long Liu
- School of Environmental Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, PR China; Institute of Physics and IMN MacroNano(®), Ilmenau University of Technology, Ilmenau 98693, Germany
| | - Ning Chen
- Canadian Light Source, Saskatoon S7N 0X4, Canada
| | - Yong Lei
- Institute of Physics and IMN MacroNano(®), Ilmenau University of Technology, Ilmenau 98693, Germany
| | - Xuyan Xue
- School of Environmental Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, PR China
| | - Lina Li
- Shanghai Synchrotron Radiation Facility, Shanghai 201204, China
| | - Jiancheng Wang
- Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Ministry of Education and Shanxi Province, Taiyuan 030024, PR China
| | - Sridhar Komarneni
- Materials Research Institute and Department of Ecosystem Science and Management, The Pennsylvania State University, University Park, PA 16802, USA
| | - Huaiyong Zhu
- School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, QLD 4001, Australia.
| | - Dongjiang Yang
- School of Environmental Science and Engineering, Collaborative Innovation Center for Marine Biomass Fibers, Materials and Textiles of Shandong Province, Qingdao University, Qingdao 266071, PR China; Key Laboratory of Coal Science and Technology, Taiyuan University of Technology, Ministry of Education and Shanxi Province, Taiyuan 030024, PR China; Queensland Micro- and Nanotechnology Centre (QMNC), Griffith University, Nathan, Brisbane, QLD 4111, Australia.
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45
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Zhao H, Liu L, Lei Y. A mini review: Functional nanostructuring with perfectly-ordered anodic aluminum oxide template for energy conversion and storage. Front Chem Sci Eng 2018. [DOI: 10.1007/s11705-018-1707-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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46
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Jung HJ, Park S, Kim KD, Kim TH, Choi MY, Lee KY. Fabrication of porous β-Bi2O3 nanoplates by phase transformation of bismuth precursor via low-temperature thermal decomposition process and their enhanced photocatalytic activity. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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47
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Zhang X, Gu P, Zhou S, Li X, Zhang G, Dong L. Enhanced removal of iodide ions by nano Cu 2O/Cu modified activated carbon from simulated wastewater with improved countercurrent two-stage adsorption. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 626:612-620. [PMID: 29358140 DOI: 10.1016/j.scitotenv.2018.01.078] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/07/2018] [Accepted: 01/08/2018] [Indexed: 06/07/2023]
Abstract
A newly developed adsorbent nano Cu2O/Cu-modified activated carbon composite (nano Cu2O/Cu-C) was used to remove radioactive iodide ions (I-) from simulated wastewater. The emphasis of this research is to improve adsorption performance and obtain higher I- removal efficiency compared with the single-stage adsorption. To fully develop the amount of adsorption by nano Cu2O/Cu-C, and to increase the decontamination factor (DF) of I-, an improved countercurrent two-stage adsorption (ICTA) process was introduced. In the ICTA process, measures dealing with desorption of loaded adsorbent in the stage-two adsorption were taken and more extensive application of countercurrent two-stage adsorption (CTA) process could be made after the improvement to ICTA process in this study. Furthermore, in order to analyze the process and determine the I- concentration in the effluent, a calculation method was devised based on the Langmuir isotherm equations and adsorption accumulation principle. The mean DFs were 177, 166, and 89.7, respectively, when the initial I- concentrations were 5.00, 10.0, and 20.0 mg/L; and the adsorbent dosage was 1.25 g/L. These results were approximately 8.76, 8.97, and 6.79 times higher, respectively, than with conventional single-stage adsorption. The experimental values of the I- concentration were higher than the calculated ones, which could be ascribed to desorption of the residual loaded adsorbent and formation of CuI in the adsorption at stage 1. Formation of CuI in the adsorption at stage 1 was considered to be the predominant reason.
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Affiliation(s)
- Xiaoyuan Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Ping Gu
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Shishuai Zhou
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Xiaoyuan Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
| | - Guanghui Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China.
| | - Lihua Dong
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
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48
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Mao P, Jiang J, Pan Y, Duanmu C, Chen S, Yang Y, Zhang S, Chen Y. Enhanced Uptake of Iodide from Solutions by Hollow Cu-Based Adsorbents. MATERIALS 2018; 11:ma11050769. [PMID: 29748518 PMCID: PMC5978146 DOI: 10.3390/ma11050769] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 05/08/2018] [Accepted: 05/09/2018] [Indexed: 11/16/2022]
Abstract
Cu2O exhibits excellent adsorption performance for the removal of I− anions from solutions by doping of metallic Ag or Cu. However, the adsorption process only appears on the surface of adsorbents. To further improve the utilization efficiencies of Cu content of adsorbents in the uptake process of I− anions, hollow spheres of metallic Cu, Cu/Cu2O composite and pure Cu2O were prepared by a facile solvothermal method. Samples were characterized and employed for the uptake of I− anions under various experimental conditions. The results show that Cu content can be tuned by adjusting reaction time. After the core was hollowed out, the uptake capacity of the samples increased sharply, and was proportional to the Cu content. Moreover, the optimal uptake was reached within only few hours. Furthermore, the uptake mechanism is proposed by characterization and analysis of the composites after uptake. Cu-based adsorbents have higher uptake performance when solutions are exposed to air, which further verified the proposed uptake mechanism. Finally, hollow Cu-based adsorbents exhibit excellent selectivity for I− anions in the presence of large concentrations of competitive anions, such as Cl−, SO42− and NO3−, and function well in an acidic or neutral environment. Therefore, this study is expected to promote the development of Cu-based adsorbents into a highly efficient adsorbent for the removal of iodide from solutions.
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Affiliation(s)
- Ping Mao
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Jinlong Jiang
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China.
| | - Yichang Pan
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China.
| | - Chuansong Duanmu
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Shouwen Chen
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Yi Yang
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.
| | - Songlan Zhang
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Yonghao Chen
- Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province, Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
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49
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Zhang D, Lu SG, Song XQ, Zhang JF, Huo Z, Zhao HT. Synergistic and simultaneous biosorption of phenanthrene and iodine from aqueous solutions by soil indigenous bacterial biomass as a low-cost biosorbent. RSC Adv 2018; 8:39274-39283. [PMID: 35558057 PMCID: PMC9091020 DOI: 10.1039/c8ra07088a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 11/20/2018] [Indexed: 11/21/2022] Open
Abstract
The removal of phenanthrene and iodine from aqueous solutions in single and binary systems by inactivated soil indigenous bacterial biomass (SIBB), as well as affecting factors, were evaluated. Sorption kinetic and isotherm studies were carried out to investigate the synergistic effects of phenanthrene and iodine. Optimal parameters for the biosorption process included a solution pH of 6.0 and biosorbent dosage of 0.75 g L−1. The ionic strength significantly decreased the biosorption of both phenanthrene and iodine in single conditions, while no obvious influences were found in the binary conditions. A pseudo-second-order model was well fitted to the kinetic biosorption data for both phenanthrene and iodine. The results showed that the presence of co-solute accelerated the biosorption processes and the pseudo-second-order biosorption rates (k2) for phenanthrene and iodine increased from 0.005441 to 0.009825 g mg−1 min−1 and from 0.000114 to 0.000223 g mg−1 min−1, respectively. The SIBB showed strong affinity with both phenanthrene and iodine, with a partition coefficient Kd (Linear model) of 6892.4 L kg−1 for phenanthrene and affinity parameter KL (Langmuir model) of 232 500 L kg−1 for iodine. The presence of co-solute illustrated a synergistic effect on the biosorption of phenanthrene and iodine due to intermolecular forces between phenanthrene and iodine, enhancing the Kd of 34.7% for phenanthrene and KL of 107.0% for iodine, respectively. The results suggested that SIBB was an effective material for the simultaneous biosorption of phenanthrene and iodine from aqueous solutions. Co-solute significantly enhanced the sorption affinity of phenanthrene and iodine by bacterial biomass.![]()
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Affiliation(s)
- D. Zhang
- College of Environmental & Resource Sciences
- Zhejiang University
- Hangzhou
- China
- Zhejiang Wulong Chemical Industrial Stock Co. Ltd
| | - S. G. Lu
- College of Environmental & Resource Sciences
- Zhejiang University
- Hangzhou
- China
| | - X. Q. Song
- Zhejiang Wulong Chemical Industrial Stock Co. Ltd
- Deqing
- China
| | - J. F. Zhang
- Zhejiang Wulong Chemical Industrial Stock Co. Ltd
- Deqing
- China
| | - Z. M. Huo
- Zhejiang Wulong Chemical Industrial Stock Co. Ltd
- Deqing
- China
| | - H. T. Zhao
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou
- China
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50
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Liu S, Zhao S, Tu W, Wang X, Wang X, Bao J, Wang Y, Han M, Dai Z. A “Signal On” Photoelectrochemical Biosensor Based on Bismuth@N,O-Codoped-Carbon Core-Shell Nanohybrids for Ultrasensitive Detection of Telomerase in HeLa Cells. Chemistry 2017; 24:3677-3682. [DOI: 10.1002/chem.201704251] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Shanshan Liu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
| | - Shulin Zhao
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
| | - Wenwen Tu
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
| | - Xiaoying Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
| | - Xiao Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
| | - Jianchun Bao
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
| | - Yu Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
| | - Min Han
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
| | - Zhihui Dai
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science; Nanjing Normal University; Nanjing 210023 P. R. China
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