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Wan JN, Chen QY, Jiang JC, Guo W, Zuo X, Fei C, Yao S, Ruan JQ. Sustainable versatile chitin aerogels: facile synthesis, structural control and high-efficiency acoustic absorption. RSC Adv 2024; 14:22229-22237. [PMID: 39010912 PMCID: PMC11247434 DOI: 10.1039/d4ra03687e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Accepted: 07/08/2024] [Indexed: 07/17/2024] Open
Abstract
Bio-based materials with excellent acoustic absorption properties are in great demand in architecture, interior, and human settlement applications for efficient noise control. In this study, crayfish shells, a form of kitchen waste, are utilized as the primary material to produce ultralight and multifunctional chitin aerogels, which effectively eliminate noise. Different replacement solvents and freezing rates were employed to regulate the porous structures of chitin aerogels, and their resulting acoustic absorption performance was investigated. Results demonstrate that employing deionized water as the replacement solvent and utilizing a common-freeze mode (frozen via refrigerator at -26 °C) can produce chitin aerogels with larger porosity (96.26%) and apertures, as well as thicker pore walls. This results in superior broadband acoustic absorption performance (with a maximum absorption coefficient reaching 0.99) and higher Young's modulus (28 kPa). Conversely, chitin aerogels solvent-exchanged with tert-butyl alcohol or subjected to quick-freeze mode (frozen via liquid nitrogen) exhibit smaller porosity (92.32% and 94.84%) and apertures, thereby possessing stronger diffuse reflection of visible light (average reflectance of 94.30% and 88.18%), and enhanced low-frequency (500 to 1600 Hz) acoustic absorption properties. Additionally, the acoustic absorption mechanism of fabricated chitin aerogels was predicted using a simple three-parameter analysis Johnson-Champoux-Allard-Lafarge (JCAL) model. This study presents a novel approach to developing multifunctional biomass materials with excellent acoustic absorption properties, which could have a wide range of potential applications.
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Affiliation(s)
- Jun-Nan Wan
- School of Physics Science and Technology, Kunming University Kunming 650214 PR China
| | - Qing-Yuan Chen
- School of Physics Science and Technology, Kunming University Kunming 650214 PR China
| | - Jian-Cheng Jiang
- School of Physics Science and Technology, Kunming University Kunming 650214 PR China
| | - Wei Guo
- School of Physics Science and Technology, Kunming University Kunming 650214 PR China
| | - Xiaoqing Zuo
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology Kunming 650093 PR China
| | - Chunlong Fei
- School of Microelectronics, Xidian University Xi'an 710126 PR China
| | - Shanshan Yao
- School of Materials Science and Engineering, Jiangsu University Zhenjiang 212013 PR China
| | - Ju-Qi Ruan
- School of Physics Science and Technology, Kunming University Kunming 650214 PR China
- School of Materials Science and Engineering, Jiangsu University Zhenjiang 212013 PR China
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2
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Oh J, Park H, Kim J, Park Y. Reusable and Biodegradable Separation Membranes Prepared from Common Mushrooms for the Removal of Oily and Particulate Contaminants from Water. ACS APPLIED BIO MATERIALS 2023. [PMID: 37285584 DOI: 10.1021/acsabm.3c00189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mushroom chitin membranes with controllable pore structures were fabricated through a simple process with naturally abundant Agaricus bisporus mushrooms. A freeze-thaw method was applied to alter the pore structures of the membranes, which consist of chitin fibril clusters within the glucan matrix. With tunable pore size and distribution, mushroom chitin membranes could effectively separate stable oil/water emulsions (dodecane, toluene, isooctane, and chili oil) with various chemical properties and concentrations and particle contaminants (carbon black and microfibers) from water. Chitin fibrils tightly pack with each other to form a dense membrane, leading to no permeation of contaminants or water. An increasing number of applied freeze-thaw cycles confers more tortuous pore structures throughout the mushroom chitin membranes, leading to higher flux while maintaining rejection performance. The 3D simulation constructed by the X-ray computed tomography and GeoDict software also demonstrated capturing a considerable amount of contaminants within the membranes' pores, which can be easily removed by water rinsing for further successive filtration. Furthermore, mushroom chitin membranes were almost completely biodegraded after approximately a month of being buried in the soil or kept in a lysozyme solution while possessing mechanical durability demonstrated by consistent filtration performance for repeated usage up to 15 cycles under ambient and external pressure. This research is a proof of concept that mushroom-derived chitin develops functional and biodegradable materials for environmental applications with scalability.
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Affiliation(s)
- Jeongmin Oh
- Department of Clothing and Textiles, Yonsei University, Seoul 03772, Korea
| | - Hanjou Park
- Department of Textiles, Merchandising and Fashion Design, Seoul National University, Seoul 08826, Korea
| | - Jooyoun Kim
- Department of Textiles, Merchandising and Fashion Design, Seoul National University, Seoul 08826, Korea
| | - Yaewon Park
- Department of Clothing and Textiles, Yonsei University, Seoul 03772, Korea
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3
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Yu W, Dong Q, Yu W, Wan Q, Chen X. Facile Preparation of MCM-41/Ag 2O Nanomaterials with High Iodide-Removal Efficiency. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3678. [PMID: 36296868 PMCID: PMC9610164 DOI: 10.3390/nano12203678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/15/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The elimination of iodide (I-) from water is a tough subject due to its low adsorption tendency and high mobility. In this work, MCM-41/Ag2O nanomaterials were prepared, characterized, and employed to adsorb I- from water. The Ag2O nanoparticles were dispersed homogeneously in the pores or at the surface of the MCM-41 support, and the Ag2O nanoparticles in the pores had small particles sizes due to the confinement of the mesoporous channel. The prepared MCM-41/Ag2O nanomaterials exhibited a higher specific surface area than previously reported Ag2O-based composites. The adsorption of I- by the nanomaterials was able to reach equilibrium at 180 min. The MCM-41/Ag2O nanomaterials showed a better adsorption capacity per unit mass of Ag2O than pure Ag2O nanoparticles and previously reported Ag2O-based composites prepared using other supports. Furthermore, the MCM-41/Ag2O nanomaterials exhibited high selectivity for I- in the presence of high concentrations of competitive anions, such as Cl- or Br-, and could function in a wide range of pH. The chemical reaction between Ag2O and I- and the surface adsorption were the main adsorption mechanisms. These results indicate that MCM-41/Ag2O nanomaterials are a promising and efficient adsorbent material suitable for the removal of I- for practical application.
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Affiliation(s)
- Wenlin Yu
- Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, School of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Qinpeng Dong
- Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, School of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
- State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Wenbin Yu
- State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Quan Wan
- State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Center for Excellence in Comparative Planetology, Hefei 230026, China
| | - Xiuli Chen
- Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, School of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
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4
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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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5
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Mamah SC, Goh PS, Ismail AF, Yogarathinam LT, Suzaimi ND, Opia AC, Ojo S, Ngwana NE. Bio‐polymer modified nanoclay embedded forward osmosis membranes with enhanced desalination performance. J Appl Polym Sci 2022. [DOI: 10.1002/app.52473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Stanley Chinedu Mamah
- Advanced Membrane Technology Research Centre School of Chemical and Energy Engineering Skudai Malaysia
- Faculty of Engineering Universiti Teknologi Malaysia Skudai Malaysia
- Department of Chemical Engineering Alex Ekwueme Federal University Achoro‐Ndiagu Nigeria
| | - Pei Sean Goh
- Advanced Membrane Technology Research Centre School of Chemical and Energy Engineering Skudai Malaysia
- Faculty of Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre School of Chemical and Energy Engineering Skudai Malaysia
- Faculty of Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Lukka Thuyavan Yogarathinam
- Advanced Membrane Technology Research Centre School of Chemical and Energy Engineering Skudai Malaysia
- Faculty of Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Nur Diyana Suzaimi
- Advanced Membrane Technology Research Centre School of Chemical and Energy Engineering Skudai Malaysia
- Faculty of Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | | | - Samuel Ojo
- Advanced Membrane Technology Research Centre School of Chemical and Energy Engineering Skudai Malaysia
- Faculty of Engineering Universiti Teknologi Malaysia Skudai Malaysia
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6
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Si Y, Luo H, Zhou F, Bai X, Han L, Sun H, Cha R. Advances in polysaccharide nanocrystals as pharmaceutical excipients. Carbohydr Polym 2021; 262:117922. [DOI: 10.1016/j.carbpol.2021.117922] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 03/04/2021] [Accepted: 03/04/2021] [Indexed: 12/12/2022]
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7
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Aerogels as porous structures for food applications: Smart ingredients and novel packaging materials. FOOD STRUCTURE 2021. [DOI: 10.1016/j.foostr.2021.100188] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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8
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Ultralight and robust aerogels based on nanochitin towards water-resistant thermal insulators. Carbohydr Polym 2020; 248:116755. [DOI: 10.1016/j.carbpol.2020.116755] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 05/29/2020] [Accepted: 07/10/2020] [Indexed: 02/06/2023]
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9
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Advances in Manufacturing Composite Carbon Nanofiber-Based Aerogels. JOURNAL OF COMPOSITES SCIENCE 2020. [DOI: 10.3390/jcs4020073] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This article provides an overview on manufacturing composite carbon nanofiber-based aerogels through freeze casting technology. As known, freeze casting is a relatively new manufacturing technique for generating highly porous structures. During the process, deep cooling is used first to rapidly solidify a well-dispersed slurry. Then, vacuum drying is conducted to sublimate the solvent. This allows the creation of highly porous materials. Although the freeze casting technique was initially developed for porous ceramics processing, it has found various applications, especially for making aerogels. Aerogels are highly porous materials with extremely high volume of free spaces, which contributes to the characteristics of high porosity, ultralight, large specific surface area, huge interface area, and in addition, super low thermal conductivity. Recently, carbon nanofiber aerogels have been studied to achieve exceptional properties of high stiffness, flame-retardant and thermal-insulating. The freeze casting technology has been reported for preparing carbon nanofiber composite aerogels for energy storage, energy conversion, water purification, catalysis, fire prevention etc. This review deals with freeze casting carbon nanofiber composite materials consisting of functional nanoparticles with exceptional properties. The content of this review article is organized as follows. The first part will introduce the general freeze casting manufacturing technology of aerogels with the emphasis on how to use the technology to make nanoparticle-containing composite carbon nanofiber aerogels. Then, modeling and characterization of the freeze cast particle-containing carbon nanofibers will be presented with an emphasis on modeling the thermal conductivity and electrical conductivity of the carbon nanofiber network aerogels. After that, the applications of the carbon nanofiber aerogels will be described. Examples of energy converters, supercapacitors, secondary battery electrodes, dye absorbents, sensors, and catalysts made from composite carbon nanofiber aerogels will be shown. Finally, the perspectives to future work will be presented.
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10
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Moore RC, Pearce CI, Morad JW, Chatterjee S, Levitskaia TG, Asmussen RM, Lawter AR, Neeway JJ, Qafoku NP, Rigali MJ, Saslow SA, Szecsody JE, Thallapally PK, Wang G, Freedman VL. Iodine immobilization by materials through sorption and redox-driven processes: A literature review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 716:132820. [PMID: 31982189 DOI: 10.1016/j.scitotenv.2019.06.166] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 06/10/2023]
Abstract
Radioiodine-129 (129I) in the subsurface is mobile and limited information is available on treatment technologies. Scientific literature was reviewed to compile information on materials that could potentially be used to immobilize 129I through sorption and redox-driven processes, with an emphasis on ex-situ processes. Candidate materials to immobilize 129I include iron minerals, sulfur-based materials, silver-based materials, bismuth-based materials, ion exchange resins, activated carbon, modified clays, and tailored materials (metal organic frameworks (MOFS), layered double hydroxides (LDHs) and aerogels). Where available, compiled information includes material performance in terms of (i) capacity for 129I uptake; (ii) long-term performance (i.e., solubility of a precipitated phase); (iii) technology maturity; (iv) cost; (v) available quantity; (vi) environmental impact; (vii) ability to emplace the technology for in situ use at the field-scale; and (viii) ex situ treatment (for media extracted from the subsurface or secondary waste streams). Because it can be difficult to compare materials due to differences in experimental conditions applied in the literature, materials will be selected for subsequent standardized batch loading tests.
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Affiliation(s)
- Robert C Moore
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Carolyn I Pearce
- Pacific Northwest National Laboratory, Richland, WA, United States of America.
| | - Joseph W Morad
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Sayandev Chatterjee
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | | | - Robert M Asmussen
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Amanda R Lawter
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - James J Neeway
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Nikolla P Qafoku
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Mark J Rigali
- Sandia National Laboratories, Albuquerque, NM, United States of America
| | - Sarah A Saslow
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Jim E Szecsody
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | | | - Guohui Wang
- Pacific Northwest National Laboratory, Richland, WA, United States of America
| | - Vicky L Freedman
- Pacific Northwest National Laboratory, Richland, WA, United States of America
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11
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Borjihan Q, Zhang Z, Zi X, Huang M, Chen Y, Zhang Y, Dong A. Pyrrolidone-based polymers capable of reversible iodine capture for reuse in antibacterial applications. JOURNAL OF HAZARDOUS MATERIALS 2020; 384:121305. [PMID: 31606708 DOI: 10.1016/j.jhazmat.2019.121305] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 09/09/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
Numerous emerging and re-emerging advanced materials have been successful in capturing iodine pollutants that pose an unprecedented global challenge to public health. However, little attention has been paid to the reutilization of the captured iodine. Herein, we report on a pyrrolidone-based polymer capable of reversible iodine capture for reutilization in antibacterial applications. The pyrrolidone-based polymer poly(N-vinyl-2-pyrrolidone-co-vinyl acetate), denoted as P(VAc-NVP), was synthesized facilely via a one-step radical copolymerization strategy, and the synthesis was regulated by step-by-step optimization, specifically by tuning the feed ratio of NVP to VAc. The as-synthesized P(VAc-NVP) copolymer functioned as an adsorbent for iodine in various solutions, including water/ethanol, cyclohexane, and petroleum ether, in addition to having the special capability of releasing iodine in the presence of starch or bacteria. This opens up a new horizon for its functional practical use as a flexible adsorbent to capture iodine for safe disposal. Interestingly, the P(VAc-NVP) copolymer, after adsorbing iodine, showed antibacterial ability against pathogenic bacteria, including Staphylococcus aureus and Escherichia coli, when a series of simulated and practical antibacterial assays were conducted. It is believed that this proposed strategy based on the synergism of iodine capture and antibacterial use should have great potential for environmental remediation and public healthcare.
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Affiliation(s)
- Qinggele Borjihan
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Zhe Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Xinyuan Zi
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Mengxue Huang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Yiqi Chen
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Yanling Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Alideertu Dong
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China; Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot 010021, People's Republic of China.
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12
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Asmussen RM, Matyáš J, Qafoku NP, Kruger AA. Silver-functionalized silica aerogels and their application in the removal of iodine from aqueous environments. JOURNAL OF HAZARDOUS MATERIALS 2019; 379:119364. [PMID: 29753522 DOI: 10.1016/j.jhazmat.2018.04.081] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 04/01/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
One of the key challenges for radioactive waste management is the efficient capture and immobilization of radioiodine, because of its radiotoxicity, high mobility in the environment, and long half-life (t1/2 = 1.57 × 107 years). Silver-functionalized silica aerogel (AgAero) represents a strong candidate for safe sequestration of radioiodine from various nuclear waste streams and subsurface environments. Batch sorption experiments up to 10 days long were carried out in oxic and anoxic conditions in both deionized water (DIW) and various Hanford Site Waste Treatment Plant (WTP) off-gas condensate simulants containing from 5 to 10 ppm of iodide (I-) or iodate (IO3-). Also tested was the selectivity of AgAero towards I- in the presence of other halide anions. AgAero exhibited fast and complete removal of I- from DIW, slower but complete removal of I- from WTP off-gas simulants, preferred removal of I- over Br- and Cl-, and it demonstrated ability to remove IO3- through reduction to I-.
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Affiliation(s)
- R Matthew Asmussen
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA, 99352, USA
| | - Josef Matyáš
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA, 99352, USA.
| | - Nikolla P Qafoku
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA, 99352, USA
| | - Albert A Kruger
- U.S. Department of Energy, Office of River Protection, P.O. Box 450, Richland, WA, 99352, USA
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13
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Samoilova NA, Krayukhina MA. Synthesis of magnetic chitin–adsorbent for specific proteins. Carbohydr Polym 2019; 216:107-112. [DOI: 10.1016/j.carbpol.2019.03.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/27/2019] [Accepted: 03/06/2019] [Indexed: 12/19/2022]
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14
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Zheng B, Liu X, Hu J, Wang F, Hu X, Zhu Y, Lv X, Du J, Xiao D. Construction of hydrophobic interface on natural biomaterials for higher efficient and reversible radioactive iodine adsorption in water. JOURNAL OF HAZARDOUS MATERIALS 2019; 368:81-89. [PMID: 30665111 DOI: 10.1016/j.jhazmat.2019.01.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/15/2018] [Accepted: 01/14/2019] [Indexed: 06/09/2023]
Abstract
For the pollution of radioactive materials, it is of great importance to develop efficient adsorbents for radioactive iodine adsorption in aqueous solution. In this work, a simple and green strategy was developed to construct hydrophobic surface on natural cotton fibers (n-CF) based on organic-soluble carbon dots (OCDs) for the first time. The results demonstrated the successful constructed hydrophobic n-CF@OCDs expressed excellent stability and selectivity for iodine (I2) adsorption in water. The maximum adsorption capacity for I2 on n-CF@OCDs is calculated to be 190.1 mg g-1, which is about 6.8 times higher than that of n-CF (28.1 mg g-1), this highly I2 adsorption efficiency should be attributed to the hydrophobic properties of adsorbent. The adsorption mechanism was also discussed in this work. In addition, the adsorbed I2 could be desorbed easily with a simple reductive process at ambient conditions, which can lead to not only the restore of I2 but also the recycling of adsorbent, illustrating their good practicability. Furthermore, this universal strategy can also be used for construction of hydrophobic surface on various natural biomaterials, demonstrating its potential application in constructing of hydrophobic surface and used for the adsorption and removal of nonpolar pollutions or radioactive waste in aqueous solutions.
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Affiliation(s)
- Baozhan Zheng
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China; Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Xiaoxia Liu
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Jing Hu
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Fengyi Wang
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Xuan Hu
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Yue Zhu
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Xu Lv
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China
| | - Juan Du
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China; Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China.
| | - Dan Xiao
- College of Chemistry, Sichuan University, Wangjiang Road, Chengdu 610064, PR China; Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, China
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Baudron V, Gurikov P, Smirnova I, Whitehouse S. Porous Starch Materials via Supercritical- and Freeze-Drying. Gels 2019; 5:gels5010012. [PMID: 30813640 PMCID: PMC6473257 DOI: 10.3390/gels5010012] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/06/2019] [Accepted: 02/10/2019] [Indexed: 01/06/2023] Open
Abstract
The production of porous materials based on starch has been explored with supercritical drying—yielding aerogel—and freeze-drying. The two drying procedures were applied on the same gelling solution of amylomaize starch pasted at 140 °C and for two concentrations (5 and 10 wt.%). After gelation and retrogradation, water from the samples to be supercritically dried was exchanged to ethanol. The resulting starch aerogel presented high specific surface area (197 m2/g). Freeze-drying was assessed by investigating the effect of the gelation, retrogradation, freezing temperature, and sublimation pressure. The resulting starch materials were macroporous, with limited specific surface area and limited mechanical integrity. Cohesive open cell foam with pore size of ~20 µm was produced by quenching the hot starch melt in liquid nitrogen. The highest specific surface area obtained with freeze-drying was 7.7 m2/g for the hot starch melt frozen at −20 °C.
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Affiliation(s)
- Victor Baudron
- Institute of Thermal Separation Processes, Hamburg University of Technology (TUHH), 22073 Hamburg, Germany.
| | - Pavel Gurikov
- Institute of Thermal Separation Processes, Hamburg University of Technology (TUHH), 22073 Hamburg, Germany.
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology (TUHH), 22073 Hamburg, Germany.
| | - Steve Whitehouse
- Nestlé Product Technology Centre York, Nestec York LTD, PO BOX 204, York YO91 1XY, UK.
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Li X, Chen G, Ma J, Jia Q. Pyrrolidinone-based hypercrosslinked polymers for reversible capture of radioactive iodine. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.09.041] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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17
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Li X, Chen G, Jia Q. Highly efficient iodine capture by task-specific polyethylenimine impregnated hypercrosslinked polymers. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.09.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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