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Metin B, Bozyiğit GD, Zaman BT, Er EÖ, Turak F, Bakırdere S. Microwave-assisted synthesis of γ-alooh nanoflowers as an adsorbent for cadmium removal from domestic wastewater. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:996. [PMID: 39352559 DOI: 10.1007/s10661-024-13175-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 09/24/2024] [Indexed: 10/20/2024]
Abstract
In this study, cadmium ions were effectively removed from domestic wastewaters using an adsorptive treatment strategy based on γ-AlOOH nanoflowers. A novel, rapid, and simple procedure was developed for the synthesis of the nanoflowers. Characterization studies were performed using X-ray powder diffraction patterns and scanning electron microscope images. The synthesized nanoflowers were utilized as adsorbent in the batch adsorption experiments. The influential parameters of the adsorption process were optimized, and a flame atomic absorption spectrophotometry (FAAS) system was used to determine maximum percent removal of cadmium ions. Matrix-matched calibration strategy, in which the calibration plot was developed in wastewater medium, was utilized for the accurate and precise quantification of cadmium in the effluent samples. The percentage removal efficiency values were calculated between 84 and 98% for different concentrations of cadmium ions in the wastewater samples. Equilibrium data was fitted to the four different linearization methods of the Langmuir isotherm model, as well as the Freundlich isotherm model and Elovich isotherm model. The best fitting was achieved for the Langmuir model with a high R2 value of 0.9956 and maximum adsorption capacity was calculated as 6.23 mg/g.
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Affiliation(s)
- Berfin Metin
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, 34220, Istanbul, Türkiye
- Neutec Pharmaceutical, Yildiz Technical University Teknopark, Istanbul, 34220, Türkiye
| | - Gamze Dalgıç Bozyiğit
- Faculty of Civil Engineering, Department of Environmental Engineering, Yildiz Technical University, Istanbul, 34220, Türkiye
| | - Buse Tuğba Zaman
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, 34220, Istanbul, Türkiye
| | - Elif Öztürk Er
- Department of Chemical Engineering, İstanbul Technical University, Istanbul, 34469, Türkiye
| | - Fatma Turak
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, 34220, Istanbul, Türkiye.
| | - Sezgin Bakırdere
- Faculty of Art and Science, Department of Chemistry, Yildiz Technical University, 34220, Istanbul, Türkiye.
- Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, Çankaya, 06670, Ankara, Türkiye.
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2
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Chen C, Xue C, Jiang J, Bi S, Hu Z, Yu G, Sun B, Mao C. Neurotoxicity Profiling of Aluminum Salt-Based Nanoparticles as Adjuvants for Therapeutic Cancer Vaccine. J Pharmacol Exp Ther 2024; 390:45-52. [PMID: 38272670 DOI: 10.1124/jpet.123.002031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/29/2023] [Accepted: 01/16/2024] [Indexed: 01/27/2024] Open
Abstract
Therapeutic vaccines containing aluminum adjuvants have been widely used in the treatment of tumors due to their powerful immune-enhancing effects. However, the neurotoxicity of aluminum adjuvants with different physicochemical properties has not been completely elucidated. In this study, a library of engineered aluminum oxyhydroxide (EAO) and aluminum hydroxyphosphate (EAHP) nanoparticles was synthesized to determine their neurotoxicity in vitro. It was demonstrated that the surface charge of EAHPs and size of EAOs did not affect the cytotoxicity in N9, bEnd.3, and HT22 cells; however, soluble aluminum ions trigger the cytotoxicity in three different cell lines. Moreover, soluble aluminum ions induce apoptosis in N9 cells, and further mechanistic studies demonstrated that this apoptosis was mediated by mitochondrial reactive oxygen species generation and mitochondrial membrane potential loss. This study identifies the safety profile of aluminum-containing salts adjuvants in the nervous system during therapeutic vaccine use, and provides novel design strategies for their safer applications. SIGNIFICANCE STATEMENT: In this study, it was demonstrated that engineered aluminum oxyhydroxide and aluminum hydroxyphosphate nanoparticles did not induce cytotoxicity in N9, bEnd.3, and HT22 cells. In comparation, soluble aluminum ions triggered significant cytotoxicity in three different cell lines, indicating that the form in which aluminum is presenting may play a crucial role in its safety. Moreover, apoptosis induced by soluble aluminum ions was dependent on mitochondrial damage. This study confirms the safety of engineered aluminum adjuvants in vaccine formulations.
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Affiliation(s)
- Chen Chen
- State Key Laboratory of Fine Chemicals (C.C., J.J., S.B., Z.H., G.Y., B.S.), School of Bioengineering (C.C., C.X.), School of Chemical Engineering (J.J., S.B., Z.H., G.Y., B.S.), and Frontiers Science Center for Smart Materials Oriented Chemical Engineering (C.C., J.J., S.B., Z.H., G.Y., B.S.), Dalian University of Technology, Dalian, China; and Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China (C.M.)
| | - Changying Xue
- State Key Laboratory of Fine Chemicals (C.C., J.J., S.B., Z.H., G.Y., B.S.), School of Bioengineering (C.C., C.X.), School of Chemical Engineering (J.J., S.B., Z.H., G.Y., B.S.), and Frontiers Science Center for Smart Materials Oriented Chemical Engineering (C.C., J.J., S.B., Z.H., G.Y., B.S.), Dalian University of Technology, Dalian, China; and Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China (C.M.)
| | - Jiaxuan Jiang
- State Key Laboratory of Fine Chemicals (C.C., J.J., S.B., Z.H., G.Y., B.S.), School of Bioengineering (C.C., C.X.), School of Chemical Engineering (J.J., S.B., Z.H., G.Y., B.S.), and Frontiers Science Center for Smart Materials Oriented Chemical Engineering (C.C., J.J., S.B., Z.H., G.Y., B.S.), Dalian University of Technology, Dalian, China; and Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China (C.M.)
| | - Shisheng Bi
- State Key Laboratory of Fine Chemicals (C.C., J.J., S.B., Z.H., G.Y., B.S.), School of Bioengineering (C.C., C.X.), School of Chemical Engineering (J.J., S.B., Z.H., G.Y., B.S.), and Frontiers Science Center for Smart Materials Oriented Chemical Engineering (C.C., J.J., S.B., Z.H., G.Y., B.S.), Dalian University of Technology, Dalian, China; and Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China (C.M.)
| | - Zurui Hu
- State Key Laboratory of Fine Chemicals (C.C., J.J., S.B., Z.H., G.Y., B.S.), School of Bioengineering (C.C., C.X.), School of Chemical Engineering (J.J., S.B., Z.H., G.Y., B.S.), and Frontiers Science Center for Smart Materials Oriented Chemical Engineering (C.C., J.J., S.B., Z.H., G.Y., B.S.), Dalian University of Technology, Dalian, China; and Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China (C.M.)
| | - Ge Yu
- State Key Laboratory of Fine Chemicals (C.C., J.J., S.B., Z.H., G.Y., B.S.), School of Bioengineering (C.C., C.X.), School of Chemical Engineering (J.J., S.B., Z.H., G.Y., B.S.), and Frontiers Science Center for Smart Materials Oriented Chemical Engineering (C.C., J.J., S.B., Z.H., G.Y., B.S.), Dalian University of Technology, Dalian, China; and Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China (C.M.)
| | - Bingbing Sun
- State Key Laboratory of Fine Chemicals (C.C., J.J., S.B., Z.H., G.Y., B.S.), School of Bioengineering (C.C., C.X.), School of Chemical Engineering (J.J., S.B., Z.H., G.Y., B.S.), and Frontiers Science Center for Smart Materials Oriented Chemical Engineering (C.C., J.J., S.B., Z.H., G.Y., B.S.), Dalian University of Technology, Dalian, China; and Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China (C.M.)
| | - Chuanbin Mao
- State Key Laboratory of Fine Chemicals (C.C., J.J., S.B., Z.H., G.Y., B.S.), School of Bioengineering (C.C., C.X.), School of Chemical Engineering (J.J., S.B., Z.H., G.Y., B.S.), and Frontiers Science Center for Smart Materials Oriented Chemical Engineering (C.C., J.J., S.B., Z.H., G.Y., B.S.), Dalian University of Technology, Dalian, China; and Department of Biomedical Engineering, The Chinese University of Hong Kong, Hong Kong SAR, China (C.M.)
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Vogl LM, Schweizer P, Pethö L, Sharma A, Michler J, Utke I. From metal nanowires to ultrathin crystalline ALD nanotubes: process development and mechanism revealed by in situ TEM heating experiments. NANOSCALE 2023. [PMID: 37161753 DOI: 10.1039/d3nr01185b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The creation of hollow nanomaterials based on metal oxides has become an important research topic, as they show potential in a broad range of technical applications. However, the controlled synthesis of long and at the same time thin nanotubes is still challenging. Here we present a universal approach to create ultrathin aluminum oxide nanotubes with a length/diameter ratio of >1200 and minimum wall thickness of ≤4 nm. We use a facile process based on defined heat treatment of specific core-shell nanowires. The metal nanowires act as a template, which is thermally removed during heat treatment until an empty tube is created. The core-shell nanowires are produced by Physical Vapour Deposition (PVD) with a subsequent coating via Atomic Layer Deposition (ALD). The custom-built PVD-ALD system enables a direct sample transfer without breaking the vacuum, which allows determining the effect of a native oxide layer on the metal-ALD bonding. In combination with correlative ex situ observations, in situ Transmission Electron Microscopy (TEM) heating experiments unravel the dynamical processes going on at small scales. Based on the microscopic analysis, the energetics of the core material is analyzed, giving insights about heat induced effects as well as the phase transition from the amorphous to the crystalline state.
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Affiliation(s)
- Lilian Maria Vogl
- Laboratory for Mechanics of Materials and Nanostructures, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland
| | - Peter Schweizer
- Laboratory for Mechanics of Materials and Nanostructures, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland
| | - Laszlo Pethö
- Laboratory for Mechanics of Materials and Nanostructures, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland
| | - Amit Sharma
- Laboratory for Mechanics of Materials and Nanostructures, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland
| | - Johann Michler
- Laboratory for Mechanics of Materials and Nanostructures, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland
| | - Ivo Utke
- Laboratory for Mechanics of Materials and Nanostructures, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland
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Izadi N, Nasernejad B. Newly engineered alumina quantum dot-based nanofluid in enhanced oil recovery at reservoir conditions. Sci Rep 2022; 12:9505. [PMID: 35680935 PMCID: PMC9184488 DOI: 10.1038/s41598-022-12387-y] [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: 01/22/2022] [Accepted: 04/25/2022] [Indexed: 11/09/2022] Open
Abstract
In this work, a newly engineered alumina quantum dot-based nanofluid (α-AQDs; D ~ 4 nm; amorphous solid) and one commercial alumina nanoparticle-based nanofluid (γ-ANPs; D ~ 20 nm; crystalline type) with the capability of strong colloidal dispersion at reservoir conditions, such as, high salinity, divalent ions (Ca2+) and high temperature was compared. The main goal of this research was to study the crude oil displacement mechanisms of alumina suspensions as a function of variety in size and particle morphology in aged carbonate rocks. The strong interaction potential between the particles was achieved by the citric acid and a special composition of a carboxylate-sulfonate-based polyelectrolyte polymer as an effective dispersant compound on the surface, leading to a negative particle charges and an additional steric and electrostatic repulsion. Wettability alteration upon exposure to fluids using the contact angle and the Amott cell were performed on saturated carbonate plug samples and rock slices. While, dynamic core displacements were conducted to test the water/nanofluid/oil flow and nanoparticle retention behavior thorough typical pore throats underground the reservoir conditions. The stability results revealed that PE-polymer was able to create a long-term colloidal fluid during 30 days. It was found that mass concentration of nanofluid increased with decreasing in particle size. The optimal amount of particles in aqueous solution was obtained 0.05 wt% for ANPs, increased up to 0.1 wt% for AQDs. Analysis of experiments showed that wettability alteration was the main mechanism during nanofluid injection. Laboratory core-flooding data proved that the enhanced oil recovery due to a less concentration state by ANPs was consistent with AQDs at higher concentrations. In addition, permeability-impairment-behavior study was discussed in terms of possible mineral scale deposition and alumina release on the rock surface. Results showed that a large extent of permeability damage caused by mineral scale (55-59%). Alumina quantum dot-based nanofluids were found a minimum impairment (2-4%) and a significant reduction of ~ 10% in permeability was observed for ANPs-based nanofluid.
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Affiliation(s)
- Nosrat Izadi
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, 15875-4413, Iran
| | - Bahram Nasernejad
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, 15875-4413, Iran.
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5
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Shanmugaraj K, Bustamante TM, Torres CC, Campos CH. Gold nanoparticles supported on mesostructured oxides for the enhanced catalytic reduction of 4-nitrophenol in water. Catal Today 2022. [DOI: 10.1016/j.cattod.2020.05.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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6
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Fe-doped Al2O3 nanoplatforms as efficient and recyclable photocatalyst for the dyes remediation. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113733] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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7
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Wu G, Liu G, Li X, Peng Z, Zhou Q, Qi T. Enhanced phosphate removal with fine activated alumina synthesized from a sodium aluminate solution: performance and mechanism. RSC Adv 2022; 12:4562-4571. [PMID: 35425491 PMCID: PMC8981406 DOI: 10.1039/d1ra08474g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 01/24/2022] [Indexed: 11/30/2022] Open
Abstract
Fine activated alumina (FAA) acting as an adsorbent for phosphate was synthesized from an industrial sodium aluminate solution based on phase evolution from Al(OH)3 and NH4Al(OH)2CO3. This material was obtained in the form of γ-Al2O3 with an open mesoporous structure and a specific surface area of 648.02 m2 g-1. The phosphate adsorption capacity of the FAA gradually increased with increases in phosphate concentration or contact time. The maximum adsorption capacity was 261.66 mg g-1 when phosphate was present as H2PO4 - at a pH of 5.0. A removal efficiency of over 96% was achieved in a 50 mg L-1 phosphate solution. The adsorption of phosphate anions could be explained using non-linear Langmuir or Freundlich isotherm models and a pseudo-second-order kinetic model. Tetra-coordinate AlO4 sites acting as Lewis acids resulted in some chemisorption, while (O) n Al(OH)2 + (n = 4, 5, 6) Brønsted acid groups generated by the protonation of AlO4 or AlO6 sites in the FAA led to physisorption. Analyses of aluminum-oxygen coordination units using Fourier transform infrared and X-ray photoelectron spectroscopy demonstrated that physisorption was predominant. Minimal chemisorption was also verified by the significant desorption rate observed in dilute NaOH solutions and the high performance of the regenerated FAA. The high specific surface area, many open mesopores and numerous highly active tetra-coordinate AlO4 sites on the FAA all synergistically contributed to its exceptional adsorption capacity.
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Affiliation(s)
- Guoyu Wu
- School of Metallurgy and Environment, Central South University Changsha 410083 Hunan China
- Changchun Gold Research Institute Co., Ltd Changchun 130012 Jilin China
| | - Guihua Liu
- School of Metallurgy and Environment, Central South University Changsha 410083 Hunan China
| | - Xiaobin Li
- School of Metallurgy and Environment, Central South University Changsha 410083 Hunan China
| | - Zhihong Peng
- School of Metallurgy and Environment, Central South University Changsha 410083 Hunan China
| | - Qiusheng Zhou
- School of Metallurgy and Environment, Central South University Changsha 410083 Hunan China
| | - Tiangui Qi
- School of Metallurgy and Environment, Central South University Changsha 410083 Hunan China
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8
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Deng L, Han S, Zhou D, Li Y, Shen W. Morphology dependent effect of γ-Al2O3 for ethanol dehydration: nanorods and nanosheets. CrystEngComm 2022. [DOI: 10.1039/d1ce01316e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
γ-Al2O3 nanorods gave the improved selectivity of C2H4 in ethanol dehydration due to the selective exposure of {100} facets.
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Affiliation(s)
- Li Deng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Shaobo Han
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Di Zhou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Yong Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Wenjie Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
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9
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Lin J, Yang Z, Zhao X, Ji H, Peng C, Sui B, Chen W, Zhang J, Qian G, Zhou X, Duan X. Kinetics and mechanistic insights into the hydrothermal synthesis of alumina microrods. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Catalyst Deactivation by Carbon Deposition: The Remarkable Case of Nickel Confined by Atomic Layer Deposition. ChemCatChem 2021. [DOI: 10.1002/cctc.202100109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Preparation of alumina nanotubes for incorporation into CO2 permselective Pebax-based nanocomposite membranes. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0777-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Mohammadi M, Khodamorady M, Tahmasbi B, Bahrami K, Ghorbani-Choghamarani A. Boehmite nanoparticles as versatile support for organic–inorganic hybrid materials: Synthesis, functionalization, and applications in eco-friendly catalysis. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.02.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Li F, Wan L, Wang Y, Wang Y. Template-free method for the synthesis of high-pore-volume γ-Al 2O 3 nanofibers in a membrane dispersion microreactor. NANOTECHNOLOGY 2021; 32:185601. [PMID: 33412530 DOI: 10.1088/1361-6528/abd975] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Mesoporous γ-Al2O3 nanofibers with high pore volume and uniform pore size distributions were successfully synthesized via a template-free method in a membrane dispersion microreactor followed by calcination. The effects of crystal temperature, pH values, continuous phase concentration and washing solvent on the γ-Al2O3 nanofibers were carefully studied. The results showed that the as-obtained γ-Al2O3 nanofibers showed a length of 40-60 nm and a width of 3.2-3.4 nm, which were attributed to the high microscopic mixing rate in the membrane dispersion microreactor. Moreover, the precursors of γ-Al2O3 nanofibers treated with deionized water and mixed deionized water/alcohol solution had high pore volumes, reaching to 1.60 ml g-1 and 2.00 ml g-1, respectively. Furthermore, the adsorption performance of γ-Al2O3 nanofibers with high pore volumes was also investigated. These fibers showed an excellent adsorption capacity of 1323.68 mg g-1 for the removal of Congo red from aqueous solution, thereby indicating their potential for applications in adsorption and other related areas.
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Affiliation(s)
- Fei Li
- School of Chemical Engineering, Northwest University, Xi'an 710069, People's Republic of China
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Lisha Wan
- School of Chemical Engineering, Northwest University, Xi'an 710069, People's Republic of China
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Yuqi Wang
- School of Chemical Engineering, Northwest University, Xi'an 710069, People's Republic of China
| | - Yujun Wang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
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Mehrabi F, Mohamadi M, Mostafavi A, Hakimi H, Shamspur T. Magnetic solid phase extraction based on PVA - TEOS / grafted Fe3O4@SiO2 magnetic nanofibers for analysis of sulfamethoxazole and trimethoprim in water samples. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121716] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Anisah S, Kanezashi M, Nagasawa H, Tsuru T. Al2O3 nanofiltration membranes fabricated from nanofiber sols: Preparation, characterization, and performance. J Memb Sci 2020. [DOI: 10.1016/j.memsci.2020.118401] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Shanmugaraj K, Bustamante TM, Campos CH, Torres CC. Liquid Phase Hydrogenation of Pharmaceutical Interest Nitroarenes over Gold-Supported Alumina Nanowires Catalysts. MATERIALS 2020; 13:ma13040925. [PMID: 32093015 PMCID: PMC7078662 DOI: 10.3390/ma13040925] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/23/2020] [Accepted: 02/10/2020] [Indexed: 11/16/2022]
Abstract
In this work, Au nanoparticles, supported in Al2O3 nanowires (ANW) modified with (3-aminopropyl)trimethoxysilane were synthetized, for their use as catalysts in the hydrogenation reaction of 4-(2-fluoro-4-nitrophenyl)-morpholine and 4-(4-nitrophenyl)morpholin-3-one. ANW was obtained by hydrothermal techniques and the metal was incorporated by the reduction of the precursor with NaBH4 posterior to superficial modification. The catalysts were prepared at different metal loadings and were characterized by different techniques. The characterization revealed structured materials in the form of nanowires and a successful superficial modification. All catalysts show that Au is in a reduced state and the shape of the nanoparticles is spherical, with high metal dispersion and size distributions from 3.7 to 4.6 nm. The different systems supported in modified-ANW were active and selective in the hydrogenation reaction of both substrates, finding for all catalytic systems a selectivity of almost 100% to the aromatic amine. Catalytic data showed pseudo first-order kinetics with respect to the substrate for all experimental conditions used in this work. The solvent plays an important role in the activity and selectivity of the catalyst, where the highest efficiency and operational stability was achieved when ethanol was used as the solvent.
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Affiliation(s)
- Krishnamoorthy Shanmugaraj
- Departamento de Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile; (K.S.); (T.M.B.); (C.H.C.)
| | - Tatiana M. Bustamante
- Departamento de Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile; (K.S.); (T.M.B.); (C.H.C.)
| | - Cristian H. Campos
- Departamento de Físico-Química, Facultad de Ciencias Químicas, Universidad de Concepción, Edmundo Larenas 129, Concepción 4070371, Chile; (K.S.); (T.M.B.); (C.H.C.)
| | - Cecilia C. Torres
- Departamento de Química, Facultad de Ciencias Exactas, Universidad Andres Bello, Sede Concepción, Autopista Concepción-Talcahuano 7100, Talcahuano 4300866, Chile
- Correspondence: ; Tel.: +56-41-2662151
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Wang L, Deng N, Wang G, Ju J, Cheng B, Kang W. Constructing Amino-Functionalized Flower-like Metal-Organic Framework Nanofibers in Sulfonated Poly(ether sulfone) Proton Exchange Membrane for Simultaneously Enhancing Interface Compatibility and Proton Conduction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39979-39990. [PMID: 31593437 DOI: 10.1021/acsami.9b13496] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A novel flower-like MIL-53(Al)-NH2 nanofiber (MNF) was successfully constructed, in which the electro-blown spinning Al2O3 nanofibers were introduced as Al precursors to coordinate with ligand in hydrothermal reaction for the formation of MOFs nanofibers. By incorporating the functional and consecutive MNFs fillers in sulfonated poly(ether sulfone) (SPES) matrix, high-performance MNFs@SPES hybrid membranes were obtained. Specifically, the peak stress strength could be strengthened to 33.42 MPa and the proton conductivity was remarkably improved to 0.201 S cm-1 as MNFs content increased to 5 wt %, achieving a simultaneous improvement on proton conduction and membrane stability. The highly promoted performance could be ascribed to the synergy advantages of unique structure and amino modification of MNFs: (1) The flower-like nanofiber structure of MNFs with high surface area could be beneficial to construct long-range and compatible interfaces between MNFs and SPES matrix, leading to sufficient continuous proton pathways as well as strengthened stability for the hybrid membrane. (2) The hydrophilic MNFs rendered the hybrid membrane with sufficient water retention for proton transfer via Vehicle mechanism. (3) Functional -NH2 groups of MNFs and -SO3H groups of SPES were consecutively and tightly bonded via acid-base electrostatic interactions, which further accelerated the proton conduction via Grotthuss hopping mechanism and effectively suppressed the methanol penetration in the meanwhile for the MNFs@SPES hybrid membranes.
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Affiliation(s)
- Liyuan Wang
- School of Textile Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes , Tiangong University , Tianjin 300387 , China
| | - Nanping Deng
- School of Material Science and Engineering , Tiangong University , Tianjin 300387 , China
| | - Gang Wang
- School of Material Science and Engineering , Tiangong University , Tianjin 300387 , China
| | - Jingge Ju
- School of Textile Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes , Tiangong University , Tianjin 300387 , China
| | - Bowen Cheng
- School of Textile Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes , Tiangong University , Tianjin 300387 , China
- School of Material Science and Engineering , Tiangong University , Tianjin 300387 , China
| | - Weimin Kang
- School of Textile Science and Engineering, State Key Laboratory of Separation Membranes and Membrane Processes/National Center for International Joint Research on Separation Membranes , Tiangong University , Tianjin 300387 , China
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18
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Lee JS, Kang BH, Kim SW, Kwon JB, Kim OS, Byun YT, Kwon DH, Bae JH, Kang SW. Al atomistic surface modulation on colloidal gradient quantum dots for high-brightness and stable light-emitting devices. Sci Rep 2019; 9:6357. [PMID: 31015572 PMCID: PMC6478915 DOI: 10.1038/s41598-019-42925-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 04/10/2019] [Indexed: 11/09/2022] Open
Abstract
Quantum-dot (QD) light-emitting devices (QLEDs) have been attracting considerable attention owing to the unique properties of process, which can control the emission wavelength by controlling the particle size, narrow emission bandwidth, and high brightness. Although there have been rapid advances in terms of luminance and efficiency improvements, the long-term device stability is limited by the low chemical stability and photostability of the QDs against moisture and air. In this study, we report a simple method, which can for enhance the long-term stability of QLEDs against oxidation by inserting Al into the shells of CdSe/ZnS QDs. The Al coated on the ZnS shell of QDs act as a protective layer with Al2O3 owing to photo-oxidation, which can prevents the photodegradation of QD with prolonged irradiation and stabilize the device during a long-term operation. The QLEDs fabricated using CdSe/ZnS/Al QDs exhibited a maximum luminance of 57,580 cd/m2 and current efficiency of 5.8 cd/A, which are significantly more than 1.6 times greater than that of CdSe/ZnS QDs. Moreover, the lifetimes of the CdSe/ZnS/Al-QD-based QLEDs were significantly improved owing to the self-passivation at the QD surfaces.
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Affiliation(s)
- Jae-Sung Lee
- Sensor System Research Center, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Byoung-Ho Kang
- Institute of Technology, DONG-A CARBON TECHNOLOGY, 41-3, Gyo 8-Gil, Buksam-eub, Chilgok-gun, Gyeongsangbuk-do, Republic of Korea
| | - Sae-Wan Kim
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701, Daegu, Republic of Korea
| | - Jin-Beom Kwon
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701, Daegu, Republic of Korea
| | - Ok-Sik Kim
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701, Daegu, Republic of Korea
| | - Young Tae Byun
- Sensor System Research Center, Korea Institute of Science and Technology (KIST), 5 Hwarang-ro 14-gil, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Dae-Hyuk Kwon
- Department of Electronic Engineering, Kyungil University, Hayang-up, 712-702, Gyeongsang buk-do, Republic of Korea
| | - Jin-Hyuk Bae
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701, Daegu, Republic of Korea
| | - Shin-Won Kang
- School of Electronics Engineering, College of IT Engineering, Kyungpook National University, 1370 Sankyuk-dong, Bukgu, 702-701, Daegu, Republic of Korea.
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19
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Investigation of γ-AlOOH and NiWO4-coated boehmite micro/nanostructure under UV/visible light photocatalysis. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3588-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Fang C, Pu M, Zhou X, Lei W, Pei L, Wang C. Facile Preparation of Hydrophobic Aluminum Oxide Film via Sol-Gel Method. Front Chem 2018; 6:308. [PMID: 30105225 PMCID: PMC6077192 DOI: 10.3389/fchem.2018.00308] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/06/2018] [Indexed: 11/24/2022] Open
Abstract
Hydrophobic aluminum oxide films (AOFs) are widely used in anti-oxidation and anti-corrosion applications. In preparing AOFs, complex and high temperature conditions are usually necessary. Here, we report aluminum nanowire structures with hydrophobic properties, prepared using a facile sol-gel method by magnetic stirrer and hydrothermal reaction. The electromagnetic force work has great influence on the structure of AOFs. The surface morphology and compositions of the AOFs were analyzed by scanning electron microscope (SEM), energy dispersive X-ray spec-trometers (EDS), X-ray diffraction (XRD), 3M peeling test, and X-ray photoelectron spectroscopy (XPS). With the increase of water content in hydrothermal reaction, the hydrophobicity of AOFs proportional increased. Adding 10 ml deionized water leads to the formation of the upper nanowires and the lower nanohole with 129.3° water contact angle. Meanwhile, the AOF provide a good substrate for electroless deposition (ELD) of copper (Cu) to achieve a simple fabrication of metal conductor.
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Affiliation(s)
- Changqing Fang
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, China.,School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, China
| | - Mengyuan Pu
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, China
| | - Xing Zhou
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, China.,School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, China
| | - Wanqing Lei
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an, China
| | - Lu Pei
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, China
| | - Chenxi Wang
- Faculty of Printing, Packaging Engineering and Digital Media Technology, Xi'an University of Technology, Xi'an, China
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21
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Ma H, Sun X, Wang M, Zhang J. Regenerable CuO/γ-Al2O3-Reduced Graphene Oxide Adsorbent with a High Adsorption Capacity for Dibenzothiophene from Model Diesel Oil. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00407] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hongqin Ma
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Xiao Sun
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Meijie Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Jiasheng Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
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22
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Zhang W, Zhang S, Wang J, Wang M, He Q, Song J, Wang H, Zhou J. Hybrid functionalized chitosan-Al 2O 3@SiO 2 composite for enhanced Cr(VI) adsorption. CHEMOSPHERE 2018; 203:188-198. [PMID: 29614412 DOI: 10.1016/j.chemosphere.2018.03.188] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 03/26/2018] [Accepted: 03/28/2018] [Indexed: 06/08/2023]
Abstract
In this study, we prepared a novel hybrid functionalized chitosan-Al2O3@SiO2 composite (FCAS) for removing hexavalent chromium [Cr(VI)] from aqueous system. Spectroscopic studies like Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), field emission scanning electron microscope (FESEM) and energy dispersive spectroscope (EDS) were characterized. The effects such as dosage of adsorbent, pH, contact time and initial Cr(VI) concentration were evaluated. It has been illustrated that a wide acidic condition in the pH range of 2-6 was conducive to Cr(VI) adsorption and only 10 min was required to reach about 80% adsorption. Also, the adsorption properties of prepared adsorbent such as kinetics, thermodynamics and isotherms were comprehensively studied. Additionally, the adsorption capacity barely declined even after five cycles. Studies found that FCAS with characteristics of high performance of adsorption rate and capacity and better reusability would be a potential adsorbent for wastewater treatment.
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Affiliation(s)
- Wei Zhang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Shilu Zhang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Jing Wang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Meng Wang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Qiulai He
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Jianyang Song
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Hongyu Wang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China.
| | - Jinping Zhou
- College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China
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23
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Ganesh Babu S, Emayavaramban B, Jerome P, Karvembu R. Pd/AlO(OH): A Heterogeneous, Stable and Recyclable Catalyst for N-Arylation of Aniline Under Ligand-Free Aerobic Condition. Catal Letters 2017. [DOI: 10.1007/s10562-017-2163-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Sun B, Ji Z, Liao YP, Chang CH, Wang X, Ku J, Xue C, Mirshafiee V, Xia T. Enhanced Immune Adjuvant Activity of Aluminum Oxyhydroxide Nanorods through Cationic Surface Functionalization. ACS APPLIED MATERIALS & INTERFACES 2017; 9:21697-21705. [PMID: 28590715 DOI: 10.1021/acsami.7b05817] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Aluminum-salt-based vaccine adjuvants are prevailingly used in FDA-approved vaccines for the prevention of infectious diseases for over eighty years. Despite their safe applications, the mechanisms regarding how the material characteristics affect the interactions at nano-bio interface and immunogenicity remain unclear. Recently, studies have indicated that the activation of NLRP3 inflammasome plays a critical role in inducing adjuvant effects that are controlled by the inherent shape and hydroxyl contents of aluminum oxyhydroxide (AlOOH) nanoparticles; however, the detailed relationship between surface properties and adjuvant effects for these materials remains unknown. Thus, we engineered AlOOH nanorods (ALNRs) with controlled surface functionalization and charge to assess their effects on the activation of NLRP3 inflammasome in vitro and the potentiation of immunogenicity in vivo. It is demonstrated that NH2-functionalized ALNRs exhibited higher levels of cellular uptake, lysosomal damage, oxidative stress, and NLRP3 inflammasome activation than pristine and SO3H-functionalized ALNRs in cells. This structure-activity relationship also correlates with the adjuvant activity of the material using ovalbumin (OVA) in a mouse vaccination model. This study demonstrates that surface functionalization of ALNRs is critical for rational design of aluminum-based adjuvants to boost antigen-specific immune responses for more effective and long-lasting vaccination.
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Affiliation(s)
- Bingbing Sun
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Zhaoxia Ji
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Yu-Pei Liao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Chong Hyun Chang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Xiang Wang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Justine Ku
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Changying Xue
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Vahid Mirshafiee
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
| | - Tian Xia
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, and ⊥School of Life Science and Biotechnology, Dalian University of Technology , 2 Linggong Road, 116024 Dalian, China
- Division of NanoMedicine, Department of Medicine, §California NanoSystems Institute, and ∥Department of Ecology and Evolutionary Biology, University of California , Los Angeles, California 90095, United States
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25
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Campos CH, Díaz CF, Guzmán JL, Alderete JB, Torres CC, Jiménez VA. PAMAM-Conjugated Alumina Nanotubes as Novel Noncytotoxic Nanocarriers with Enhanced Drug Loading and Releasing Performances. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600136] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Cristian H. Campos
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción 4070371 Chile
| | - Carola F. Díaz
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción 4070371 Chile
| | - José L. Guzmán
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción 4070371 Chile
| | - Joel B. Alderete
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción 4070371 Chile
| | - Cecilia C. Torres
- Departamento de Química Orgánica; Facultad de Ciencias Químicas; Universidad de Concepción; Casilla 160-C Concepción 4070371 Chile
| | - Verónica A. Jiménez
- Departamento de Ciencias Químicas; Facultad de Ciencias Exactas; Universidad Andres Bello; Sede Concepción Talcahuano 4260000 Chile
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26
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Vitorino NM, Kovalevsky AV, Azevedo MC, Abrantes JC, Frade J. Self-functionalization of cellular alumina monoliths in hydrothermal conditions. Ann Ital Chir 2016. [DOI: 10.1016/j.jeurceramsoc.2015.11.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Li Z, Du Y, Zhang S, Chen Z, Yang K, Lv X, Zhu C. Synthesis and characterization of hierarchical γ-AlOOH and γ-Al2O3 microspheres with high adsorption performance for organic dyes. RSC Adv 2016. [DOI: 10.1039/c6ra17606b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A segmented heating process with CTAB as a surfactant and pore forming agent has been successfully developed to synthesize hierarchical γ-AlOOH and γ-Al2O3 microspheres with ultra-excellent adsorption performance for Congo red.
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Affiliation(s)
- Zhongfu Li
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province
- Qilu University of Technology
- Jinan 250353
- P. R. China
| | - Yi Du
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province
- Qilu University of Technology
- Jinan 250353
- P. R. China
| | - Shiying Zhang
- Hunan Key Laboratory of Applied Environmental Photocatalysis
- Changsha University
- Changsha
- P. R. China
| | - Zhongtao Chen
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province
- Qilu University of Technology
- Jinan 250353
- P. R. China
| | - Kai Yang
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province
- Qilu University of Technology
- Jinan 250353
- P. R. China
| | - Xingjie Lv
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province
- Qilu University of Technology
- Jinan 250353
- P. R. China
| | - Chaofeng Zhu
- Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province
- Qilu University of Technology
- Jinan 250353
- P. R. China
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28
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Zhang H, Li P, Cui W, Liu C, Wang S, Zheng S, Zhang Y. Synthesis of nanostructured γ-AlOOH and its accelerating behavior on the thermal decomposition of AP. RSC Adv 2016. [DOI: 10.1039/c5ra27838d] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The hydrothermal treatment of γ-AlOOH agglomerates was introduced to synthesize nanostructured γ-AlOOH.
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Affiliation(s)
- Hailin Zhang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Ping Li
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Wenwen Cui
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Chuang Liu
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Shulei Wang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Shili Zheng
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
| | - Yi Zhang
- National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology
- Institute of Process Engineering
- Chinese Academy of Sciences
- Beijing
- People's Republic of China
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29
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Zhang J, Zhu H, Wu P, Ge C, Sun D, Xu L, Tang Y, Zhou Y. Rational synthesis of Ni nanoparticle-embedded porous graphitic carbon nanosheets with enhanced lithium storage properties. NANOSCALE 2015; 7:18211-18217. [PMID: 26482952 DOI: 10.1039/c5nr05568g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Carbon-based materials have recently received increased attention as very promising anode materials for rechargeable lithium-ion batteries (LIBs) because of their non-toxicity, low cost, and excellent performances. Nanostructure engineering has been demonstrated as an effective approach to improve the electrochemical performance of electrode materials. Here, we present a facile and scalable synthesis of two-dimensional (2D) porous graphitic carbon nanosheets embedded by numerous homogeneously dispersed Ni nanoparticles. With both structural and compositional advantages, the as-synthesized nanohybrid manifests a very stable high reversible capacity of 740 mA h g(-1) after 100 cycles at a current density of 100 mA g(-1), and also excellent rate capability and cycling stability. We believe that the synthetic strategy outlined here can be extended to other rationally designed anode materials with high performances in LIBs.
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Affiliation(s)
- Jingfei Zhang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
| | - Huimin Zhu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
| | - Ping Wu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
| | - Cunwang Ge
- School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, P. R. China
| | - Dongmei Sun
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
| | - Lin Xu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
| | - Yawen Tang
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
| | - Yiming Zhou
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, PR China.
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30
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Esmaeili-Shahri E, Es'haghi Z. Superparamagnetic Fe3 O4 @SiO2 core-shell composite nanoparticles for the mixed hemimicelle solid-phase extraction of benzodiazepines from hair and wastewater samples before high-performance liquid chromatography analysis. J Sep Sci 2015; 38:4095-104. [PMID: 26412451 DOI: 10.1002/jssc.201500743] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 08/21/2015] [Accepted: 09/15/2015] [Indexed: 12/24/2022]
Abstract
Magnetic Fe3 O4 /SiO2 composite core-shell nanoparticles were synthesized, characterized, and applied for the surfactant-assisted solid-phase extraction of five benzodiazepines diazepam, oxazepam, clonazepam, alprazolam, and midazolam, from human hair and wastewater samples before high-performance liquid chromatography with diode array detection. The nanocomposite was synthesized in two steps. First, Fe3 O4 nanoparticles were prepared by the chemical co-precipitation method of Fe(III) and Fe(II) as reaction substrates and NH3 /H2 O as precipitant. Second, the surface of Fe3 O4 nanoparticles was modified with shell silica by Stober method using tetraethylorthosilicate. The Fe3 O4 /SiO2 composite were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and vibrating sample magnetometry. To enhance their adsorptive tendency toward benzodiazepines, cetyltrimethylammonium bromide was added, which was adsorbed on the surface of the Fe3 O4 /SiO2 nanoparticles and formed mixed hemimicelles. The main parameters affecting the efficiency of the method were thoroughly investigated. Under optimum conditions, the calibration curves were linear in the range of 0.10-15 μgmL(-1) . The relative standard deviations ranged from 2.73 to 7.07%. The correlation coefficients varied from 0.9930 to 0.9996.
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31
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Li Z, Yao W, Kong L, Zhao Y, Li L. General Method for the Synthesis of Ultrastable Core/Shell Quantum Dots by Aluminum Doping. J Am Chem Soc 2015; 137:12430-3. [PMID: 26389704 DOI: 10.1021/jacs.5b05462] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Semiconductor quantum dots (QDs) have attracted extensive attention in various applications because of their unique optical and electronic properties. However, long-term photostability remains a challenge for their practical application. Here, we present a simple method to enhance the photostability of QDs against oxidation by doping aluminum into the shell of core/shell QDs. We demonstrate that Al in the coating shell can be oxidized to Al2O3, which can serve as a self-passivation layer on the surface of the core/shell QDs and effectively stop further photodegradation during long-term light irradiation. The prepared CdSe/CdS:Al QDs survived 24 h without significant degradation when they were subjected to intense illumination under LED light (450 nm, 0.35 W/cm(2)), whereas conventional CdSe/CdS QDs were bleached within 3 h.
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Affiliation(s)
- Zhichun Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai 200240, China
| | - Wei Yao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai 200240, China
| | - Long Kong
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai 200240, China
| | - Yixin Zhao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai 200240, China
| | - Liang Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University , 800 Dongchuan Road, Shanghai 200240, China
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Liu X, Niu C, Zhen X, Wang J, Su X. Novel approach for synthesis of boehmite nanostructures and their conversion to aluminum oxide nanostructures for remove Congo red. J Colloid Interface Sci 2015; 452:116-125. [DOI: 10.1016/j.jcis.2015.04.037] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 04/16/2015] [Accepted: 04/17/2015] [Indexed: 11/30/2022]
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33
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Dar FA, Sofi AH, Shah MA. Boehmite (AlOOH) nanostrips and their growth mechanism. INTERNATIONAL NANO LETTERS 2015. [DOI: 10.1007/s40089-015-0138-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Song X, Yang P, Jia C, Chen L, Matras-Postolek K. Self-assembled synthesis of urchin-like AlOOH microspheres with large surface area for removal of pollutants. RSC Adv 2015. [DOI: 10.1039/c5ra01255d] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Urchin-like AlOOH microspheres synthesized by a chemical induced solvothermal method revealed high efficiency for the removal of Congo red pollutant.
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Affiliation(s)
- Xueling Song
- School of Material Science and Engineering
- University of Jinan
- Jinan
- PR China
| | - Ping Yang
- School of Material Science and Engineering
- University of Jinan
- Jinan
- PR China
| | - Changchao Jia
- School of Material Science and Engineering
- University of Jinan
- Jinan
- PR China
| | - Ling Chen
- School of Material Science and Engineering
- University of Jinan
- Jinan
- PR China
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35
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Banerjee S, Gautam RK, Jaiswal A, Chandra Chattopadhyaya M, Chandra Sharma Y. Rapid scavenging of methylene blue dye from a liquid phase by adsorption on alumina nanoparticles. RSC Adv 2015. [DOI: 10.1039/c4ra12235f] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The adsorption behavior of methylene blue on as-synthesized alumina nanoparticles has been investigated.
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Affiliation(s)
- Sushmita Banerjee
- Department of Chemistry
- University of Allahabad
- Allahabad – 211002
- India
| | | | - Amita Jaiswal
- Department of Chemistry
- University of Allahabad
- Allahabad – 211002
- India
| | | | - Yogesh Chandra Sharma
- Department of Chemistry
- Indian Institute of Technology
- Banaras Hindu University
- Varanasi – 221005
- India
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36
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Moatti A, Javadpour J, Anbia M, Badiei A. The correlation between aging time and pore characteristics in the synthesis of mesoporous Al2O3. CERAMICS INTERNATIONAL 2014; 40:10231-10236. [DOI: 10.1016/j.ceramint.2014.02.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
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37
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Yu J, Bai H, Wang J, Li Z, Jiao C, Liu Q, Zhang M, Liu L. Synthesis of aluminananosheetsvia supercritical fluid technology with high uranyl adsorptive capacity. NEW J CHEM 2013. [DOI: 10.1039/c2nj40514h] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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38
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El-Latif MMA, Ibrahim AM, Showman MS, Hamide RRA. Alumina/Iron Oxide Nano Composite for Cadmium Ions Removal from Aqueous Solutions. INTERNATIONAL JOURNAL OF NONFERROUS METALLURGY 2013; 02:47-62. [DOI: 10.4236/ijnm.2013.22007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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39
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Chang CC, Wu JL, Yang NH, Lin SJ, Chang SY. Synthesis and growth twinning of γ-Al2O3nanowires by simple evaporation of Al–Si alloy powder. CrystEngComm 2012. [DOI: 10.1039/c1ce05758h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Cai W, Hu Y, Chen J, Zhang G, Xia T. Synthesis of nanorod-like mesoporous γ-Al2O3 with enhanced affinity towards Congo red removal: Effects of anions and structure-directing agents. CrystEngComm 2012. [DOI: 10.1039/c1ce05975k] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Lock N, Christensen M, Jensen KMØ, Iversen BB. Rapid One-Step Low-Temperature Synthesis of Nanocrystalline γ-Al2O3. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100668] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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42
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Lock N, Christensen M, Jensen KMØ, Iversen BB. Rapid One-Step Low-Temperature Synthesis of Nanocrystalline γ-Al2O3. Angew Chem Int Ed Engl 2011; 50:7045-7. [DOI: 10.1002/anie.201100668] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Indexed: 11/08/2022]
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43
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Cai W, Yu J, Jaroniec M. Effect of nonionic structure-directing agents on adsorption and structural properties of mesoporous alumina. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10642b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Zhang YX, Yu XY, Jin Z, Jia Y, Xu WH, Luo T, Zhu BJ, Liu JH, Huang XJ. Ultra high adsorption capacity of fried egg jellyfish-like γ-AlOOH(Boehmite)@SiO2/Fe3O4 porous magnetic microspheres for aqueous Pb(II) removal. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12196k] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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45
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Gravani S, Polychronopoulou K, Stolojan V, Cui Q, Gibson PN, Hinder SJ, Gu Z, Doumanidis CC, Baker MA, Rebholz C. Growth and characterization of ceria thin films and Ce-doped γ-Al2O3 nanowires using sol-gel techniques. NANOTECHNOLOGY 2010; 21:465606. [PMID: 20975211 DOI: 10.1088/0957-4484/21/46/465606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
γ-Al(2)O(3) is a well known catalyst support. The addition of Ce to γ-Al(2)O(3) is known to beneficially retard the phase transformation of γ-Al(2)O(3) to α-Al(2)O(3) and stabilize the γ-pore structure. In this work, Ce-doped γ-Al(2)O(3) nanowires have been prepared by a novel method employing an anodic aluminium oxide (AAO) template in a 0.01 M cerium nitrate solution, assisted by urea hydrolysis. Calcination at 500 °C for 6 h resulted in the crystallization of the Ce-doped AlOOH gel to form Ce-doped γ-Al(2)O(3) nanowires. Ce(3+) ions within the nanowires were present at a concentration of < 1 at.%. On the template surface, a nanocrystalline CeO(2) thin film was deposited with a cubic fluorite structure and a crystallite size of 6-7 nm. Characterization of the nanowires and thin films was performed using scanning electron microscopy, transmission electron microscopy, electron energy loss spectroscopy, x-ray photoelectron spectroscopy and x-ray diffraction. The nanowire formation mechanism and urea hydrolysis kinetics are discussed in terms of the pH evolution during the reaction. The Ce-doped γ-Al(2)O(3) nanowires are likely to find useful applications in catalysis and this novel method can be exploited further for doping alumina nanowires with other rare earth elements.
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Affiliation(s)
- S Gravani
- Mechanical and Manufacturing Engineering Department, Engineering School, University of Cyprus, Nicosia, Cyprus
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46
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Hu Y, Zhan N, Dou C, Huang H, Han Y, Yu D, Hu Y. Selective dehydration of bio-ethanol to ethylene catalyzed by lanthanum-phosphorous-modified HZSM-5: Influence of the fusel. Biotechnol J 2010; 5:1186-91. [DOI: 10.1002/biot.201000139] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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47
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DING W, GUO X, MO M, ZHU Y, CHEN Y. Progress of the Study on the Synthesis and Catalytic Property of Noncrystalline Alloy Nanotubes. CHINESE JOURNAL OF CATALYSIS 2010. [DOI: 10.3724/sp.j.1088.2010.00714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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48
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Zhu Y, Hou H, Tang G, Hu Q. Synthesis of Three-Quarter-Sphere-Like γ-AlOOH Superstructures with High Adsorptive Capacity. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.200901036] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Dandapat A, De G. Nanorods assembly of mesoporous boehmite film on glass: an efficient catalyst for permanganate reduction to MnO2 nanoparticles. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c000519c] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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