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Shang B, Wang S, Lu L, Ma H, Liu A, Zupanic A, Jiang L, Elnawawy AS, Yu Y. Poultry eggshell-derived antimicrobial materials: Current status and future perspectives. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 314:115096. [PMID: 35462255 DOI: 10.1016/j.jenvman.2022.115096] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 04/01/2022] [Accepted: 04/16/2022] [Indexed: 06/14/2023]
Abstract
Poultry eggs, the basic foodstuffs of human society, have been extensively consumed for domestic and industrial uses. A large amount of eggshell waste is generated and discarded every year, resulting in a waste of natural resources and a threat to the environment. In this context, the reutilization of eggshell waste has gained increasing attentions. Meanwhile, the overuse of antibiotics has led to the emergence of many drug-resistant bacteria, which greatly endangers public health. Therefore, manufacturing new materials with strong antimicrobial activities has become the focus of many researchers. Recent studies have revealed that eggshells can be applied as solid substances, the raw materials for calcium oxide, and the calcium source for synthesizing hydroxyapatite or other materials with antimicrobial activities. Herein, the preparation methods, antibacterial mechanisms and the applications of these eggshell waste-derived antibacterial materials are summarized in this review. Finally, the current challenges and future directions in this field are discussed.
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Affiliation(s)
- Baoya Shang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Shanshan Wang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Lingxia Lu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Huanhuan Ma
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Aiqi Liu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Anze Zupanic
- Department of Biotechnology and Systems Biology, National Institute of Biology, Vecna Pot 111, Ljubljana, SI, 1000, Slovenia
| | - Ling Jiang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing, 211800, People's Republic of China.
| | - Aml S Elnawawy
- Food Engineering and Packaging Department, Food Technology Research Institute, Agriculture Research Center (ARC), Giza, Egypt
| | - Yadong Yu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China.
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Sartori B, Amenitsch H, Marmiroli B. Functionalized Mesoporous Thin Films for Biotechnology. MICROMACHINES 2021; 12:740. [PMID: 34202530 PMCID: PMC8304103 DOI: 10.3390/mi12070740] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/23/2022]
Abstract
Mesoporous materials bear great potential for biotechnological applications due to their biocompatibility and versatility. Their high surface area and pore interconnection allow the immobilization of molecules and their subsequent controlled delivery. Modifications of the mesoporous material with the addition of different chemical species, make them particularly suitable for the production of bioactive coatings. Functionalized thin films of mesoporous silica and titania can be used as scaffolds with properties as diverse as promotion of cell growth, inhibition of biofilms formation, or development of sensors based on immobilized enzymes. The possibility to pattern them increase their appeal as they can be incorporated into devices and can be tailored both with respect to architecture and functionalization. In fact, selective surface manipulation is the ground for the fabrication of advanced micro devices that combine standard micro/nanofluids with functional materials. In this review, we will present the advantages of the functionalization of silica and titania mesoporous materials deposited in thin film. Different functional groups used to modify their properties will be summarized, as well as functionalization methods and some examples of applications of modified materials, thus giving an overview of the essential role of functionalization to improve the performance of such innovative materials.
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Affiliation(s)
| | | | - Benedetta Marmiroli
- Institute of Inorganic Chemistry, Graz University of Technology, 8010 Graz, Austria; (B.S.); (H.A.)
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Surface Modification of Magnetic Mesoporous Systems with Aminopropyl Groups and Their Properties. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01775-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Soltani S, Khanian N, Rashid U, Yaw Choong TS. Fundamentals and recent progress relating to the fabrication, functionalization and characterization of mesostructured materials using diverse synthetic methodologies. RSC Adv 2020; 10:16431-16456. [PMID: 35517916 PMCID: PMC9057695 DOI: 10.1039/d0ra00440e] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/11/2020] [Accepted: 03/12/2020] [Indexed: 01/07/2023] Open
Abstract
Since 1990 and the invention of the very first generation of ordered mesoporous silica materials, several innovative methodologies have been applied to synthesize, characterize, and modify silica/non-silica mesoporous materials. The growth of the mesoporous materials field has generated significant environmental and economic advantages compared to various other industrial developments. According to the literature, there are several key synthesis approaches and parameters that can affect the structural, textural and morphological characteristics of mesoporous materials. To date, huge attempts have been made to maximize the activities and selectivities of these materials through either the in situ or post-synthesis functionalization of the large interior surface areas and internal mesostructured frameworks in the presence of specific organic/inorganic components. However, the main challenge is to provide good control over the incorporation and distribution of multiple guest components within the mesostructured hosts. Mesostructured materials have received great attention for various applications, such as being used in electronics, medicine, photocatalysis, catalyst supports, catalysis, absorbers, sensors, gas separation, etc. In the current paper, several recent developments have been highlighted and reviewed regarding the fabrication and characterization of siliceous/non-siliceous mesoporous materials via various synthetic approaches. Furthermore, the availability of diverse functionalization methods has been reviewed to provide comprehensive approaches for synthesizing new generations of suitably modified mesoporous materials with superior structural, physicochemical, and textural characteristics. Since 1990 and the invention of the very first generation of ordered mesoporous silica materials, several innovative methodologies have been applied to synthesize, characterize, and modify silica/non-silica mesoporous materials.![]()
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Affiliation(s)
- Soroush Soltani
- Department of Chemical and Environmental Engineering
- Universiti Putra Malaysia
- 43400 Selangor
- Malaysia
| | | | - Umer Rashid
- Institute of Advanced Technology
- Universiti Putra Malaysia
- Malaysia
| | - Thomas Shean Yaw Choong
- Department of Chemical and Environmental Engineering
- Universiti Putra Malaysia
- 43400 Selangor
- Malaysia
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Tanjim M, Rahman MA, Rahman MM, Minami H, Hoque SM, Sharafat MK, Gafur MA, Ahmad H. Mesoporous magnetic silica particles modified with stimuli-responsive P(NIPAM-DMA) valve for controlled loading and release of biologically active molecules. SOFT MATTER 2018; 14:5469-5479. [PMID: 29923579 DOI: 10.1039/c8sm00560e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Mesoporous magnetic silica particles bearing a stimuli-responsive polymer valve were prepared and their performance as a microcapsule was evaluated. In this study, first, mesoporous magnetic iron oxide (Fe3O4) particles were prepared by a solvothermal method. Then, the magnetic particles were coated with silica and functionalized with vinyl groups using 3-(trimethoxysilyl)-propyl methacrylate (MPS). Subsequently, the Fe3O4/SiO2 composite particles grafted with MPS were used to carry out the seeded precipitation copolymerization of N-isopropylacrylamide (NIPAM) and 2,2-dimethylaminoethyl methacrylate (DMA). Here N,N'-methylenebisacrylamide (MBA) was used as a cross-linker. Brunauer-Emmett-Teller (BET) surface analysis suggested that the mesoporous structure was retained in the final Fe3O4/SiO2/P(NIPAM-DMA-MBA) composite hydrogel particles. The prepared Fe3O4/SiO2/P(NIPAM-DMA-MBA) composite hydrogel microspheres exhibited a pH-dependent volume phase transition. At lower pH values (<7), the inclusion of DMA shifted the volume phase transition to higher temperature because of the protonation of the tertiary amine groups. The composite hydrogel particles possessed a high saturation magnetization (51 emu g-1) and moved under the influence of an external magnetic field. The loading-release behaviour of these biologically active molecules suggested that a portion of the encapsulated guest molecules was released at a temperature below the lower critical solution temperature, LCST (<35 °C).
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Affiliation(s)
- Mustahida Tanjim
- Department of Chemistry, Rajshahi University, Rajshahi 6205, Bangladesh.
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Jahnke JP, Idso MN, Hussain S, Junk MJ, Fisher JM, Phan DD, Han S, Chmelka BF. Functionally Active Membrane Proteins Incorporated in Mesostructured Silica Films. J Am Chem Soc 2018; 140:3892-3906. [PMID: 29533066 PMCID: PMC6040920 DOI: 10.1021/jacs.7b06863] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A versatile synthetic protocol is reported that allows high concentrations of functionally active membrane proteins to be incorporated in mesostructured silica materials. Judicious selections of solvent, surfactant, silica precursor species, and synthesis conditions enable membrane proteins to be stabilized in solution and during subsequent coassembly into silica-surfactant composites with nano- and mesoscale order. This was demonstrated by using a combination of nonionic ( n-dodecyl-β-d-maltoside or Pluronic P123), lipid-like (1,2-diheptanoyl- s n-glycero-3-phosphocholine), and perfluoro-octanoate surfactants under mild acidic conditions to coassemble the light-responsive transmembrane protein proteorhodopsin at concentrations up to 15 wt % into the hydrophobic regions of worm-like mesostructured silica materials in films. Small-angle X-ray scattering, electron paramagnetic resonance spectroscopy, and transient UV-visible spectroscopy analyses established that proteorhodopsin molecules in mesostructured silica films exhibited native-like function, as well as enhanced thermal stability compared to surfactant or lipid environments. The light absorbance properties and light-activated conformational changes of proteorhodopsin guests in mesostructured silica films are consistent with those associated with the native H+-pumping mechanism of these biomolecules. The synthetic protocol is expected to be general, as demonstrated also for the incorporation of functionally active cytochrome c, a peripheral membrane protein enzyme involved in electron transport, into mesostructured silica-cationic surfactant films.
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Affiliation(s)
- Justin P. Jahnke
- Department of Chemical Engineering, University of California, Santa Barbara, California, 93106 U.S.A
| | - Matthew N. Idso
- Department of Chemical Engineering, University of California, Santa Barbara, California, 93106 U.S.A
| | - Sunyia Hussain
- Department of Chemical Engineering, University of California, Santa Barbara, California, 93106 U.S.A
| | - Matthias J.N. Junk
- Department of Chemical Engineering, University of California, Santa Barbara, California, 93106 U.S.A
| | - Julia M. Fisher
- Department of Chemical Engineering, University of California, Santa Barbara, California, 93106 U.S.A
| | - David D. Phan
- Department of Chemical Engineering, University of California, Santa Barbara, California, 93106 U.S.A
| | - Songi Han
- Department of Chemical Engineering, University of California, Santa Barbara, California, 93106 U.S.A
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California, 93106 U.S.A
| | - Bradley F. Chmelka
- Department of Chemical Engineering, University of California, Santa Barbara, California, 93106 U.S.A
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Wang P, Zhao Y, Liu J. Versatile design and synthesis of mesoporous sulfonic acid catalysts. Sci Bull (Beijing) 2018; 63:252-266. [PMID: 36659014 DOI: 10.1016/j.scib.2018.01.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/19/2017] [Accepted: 01/03/2018] [Indexed: 01/21/2023]
Abstract
Mesoporous sulfonic acid catalysts (MSAC) are widely used in acid-catalyzed reactions, including biomass conversions with plenty of polar solvents and precursors. The catalytic efficiency of MSAC is greatly affected by the microenvironment around the sulfonic acid sites. In this review, the progress on modification of microenvironment of MSAC is reviewed over the past decade. Hydrophobic modification allows MSAC prevent the adhesion of water molecules onto sulfonic acid sites, to abate the risk of reduced acid strength and catalytic efficiency. In comparison, hydrophilic properties can bring positive effect on acid-catalyzed reactions with the aid of hydrophilic interaction between polar functional groups on MSAC and hydrophilic groups of specific substrates. Amphiphilic MSAC with tunable wettability for specific substrates and solvents tend to improve the efficiency in certain reactions with mixed solvents or reactants of different polarity, especially for biphasic systems of immiscible liquids. Furthermore, much attention has been attracted on modification of surface to simulate the microenvironment of homogeneous solvents and enzyme biocatalysts in recent research. New trends of this field are also highlighted.
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Affiliation(s)
- Peng Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
| | - Yupei Zhao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China
| | - Jian Liu
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China; Department of Chemical and Process Engineering, University of Surrey, Guildford, Surrey GU2 7XH, UK.
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Malhis AA, Arar SH, Fayyad MK, Hodali HA. Amino- and thiol-modified microporous silicalite-1 and mesoporous MCM-48 materials as potential effective adsorbents for Pb(II) in polluted aquatic systems. ADSORPT SCI TECHNOL 2017. [DOI: 10.1177/0263617416689270] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aluminum-free zeolite silicalite-1 and the ordered mesoporous silicates Mobile Crystalline Material No. 48 (MCM-48) were prepared and functionalized with 3-aminopropyltriethoxysilane (APTES) and 3-mercaptopropyltrimethoxysilane (MPTMS) for the enhancement of adsorption capacity. Functionalization via post synthesis grafting method was adopted and the functionalized silicate systems were denoted as silicalite-1-NH2, silcalite-1-SH, MCM-48-NH2 and MCM-48-SH. Functionalization, that was confirmed by XRD, FT-IR and surface area measurements, indicated no structural changes on the silicate materials. The adsorption of Pb(II) ions into these modified silicates was investigated in aqueous solutions with optimized pH at 5.5 where adsorption influencing factors including contact time, adsorbent dose and metal ion initial concentration were studied. Adsorption experimental data for silicalite-1-NH2, MCM-48-NH2 and MCM-48-SH showed satisfactory correlation with Langmuir and Freundlich models. According to Langmuir isotherm, the maximum capacities for the above three modified silicate systems, for 100 ppm Pb(II) dose, are 43.5, 75.2 and 31.2 mg/g and with Kf constant values of 16.9, 44.4 and 12.0 L/mg from Freundlich isotherm, respectively. The three modified silicate systems exhibited complete sequestration of Pb(II) ion concentrations in the range 0.48–1.7 ppm from samples collected from Zarqa River in four seasons of the year 2013.
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Affiliation(s)
- Abeer A Malhis
- Department of Chemistry, The University of Jordan, Jordan
| | - Sharif H Arar
- Department of Chemistry, The University of Jordan, Jordan
| | - Manar K Fayyad
- Department of Chemistry, The University of Jordan, Jordan
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Kharkov BB, Chizhik VI, Dvinskikh SV. Broadband cross-polarization-based heteronuclear dipolar recoupling for structural and dynamic NMR studies of rigid and soft solids. J Chem Phys 2016; 144:034201. [DOI: 10.1063/1.4939798] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Vyhmeister E, Valdés-González H, Reyes-Bozo L, Rodríguez-Maecker R, Muscat A, Estévez LA, Suleiman D. In-Situ FTIR Kinetic Study in the Silylation of Low-k Films with Hexamethyldisilazane Dissolved in Supercritical CO2. CHEM ENG COMMUN 2015. [DOI: 10.1080/00986445.2015.1124098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Jadhav SA, Miletto I, Brunella V, Berlier G, Scalarone D. Controlled post-synthesis grafting of thermoresponsive poly(N
-isopropylacrylamide) on mesoporous silica nanoparticles. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3534] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Sushilkumar A. Jadhav
- Department of Chemistry and NIS Research Centre; University of Torino; Via P. Giuria 7 10125 Torino Italy
| | - Ivana Miletto
- Department of Chemistry and NIS Research Centre; University of Torino; Via P. Giuria 7 10125 Torino Italy
| | - Valentina Brunella
- Department of Chemistry and NIS Research Centre; University of Torino; Via P. Giuria 7 10125 Torino Italy
| | - Gloria Berlier
- Department of Chemistry and NIS Research Centre; University of Torino; Via P. Giuria 7 10125 Torino Italy
| | - Dominique Scalarone
- Department of Chemistry and NIS Research Centre; University of Torino; Via P. Giuria 7 10125 Torino Italy
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Sasi kumar R, Ariraman M, Alagar M. Studies on MCM-41/PDMS based hybrid polybenzoxazine nanocomposites for interlayer low k dielectrics. RSC Adv 2015. [DOI: 10.1039/c5ra02842f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The development of thermally stable mesoporous silica/siloxane based hybrid polybenzoxazine nanocomposites as an interlayer low k dielectric material.
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Affiliation(s)
- Ramachandran Sasi kumar
- Polymer Composites Lab
- Department of Chemical Engineering
- A. C. Tech
- Anna University
- Chennai-600 025
| | - Mathivathanan Ariraman
- Polymer Composites Lab
- Department of Chemical Engineering
- A. C. Tech
- Anna University
- Chennai-600 025
| | - Muthukaruppan Alagar
- Polymer Composites Lab
- Department of Chemical Engineering
- A. C. Tech
- Anna University
- Chennai-600 025
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Mustafa AA, Matinlinna JP, Saidin S, Kadir MRA. The influence of experimental silane primers on dentin bond strength and morphology: a laboratory and finite element analysis study. J Prosthet Dent 2014; 112:1498-506. [PMID: 24993375 DOI: 10.1016/j.prosdent.2014.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 05/05/2014] [Accepted: 05/05/2014] [Indexed: 10/25/2022]
Abstract
STATEMENT OF PROBLEM The inconsistency of dentin bonding affects retention and microleakage. PURPOSE The purpose of this laboratory and finite element analysis study was to investigate the effects on the formation of a hybrid layer of an experimental silane coupling agent containing primer solutions composed of different percentages of hydroxyethyl methacrylate. MATERIAL AND METHODS A total of 125 sound human premolars were restored in vitro. Simple class I cavities were formed on each tooth, followed by the application of different compositions of experimental silane primers (0%, 5%, 25%, and 50% of hydroxyethyl methacrylate), bonding agents, and dental composite resins. Bond strength tests and scanning electron microscopy analyses were performed. The laboratory experimental results were validated with finite element analysis to determine the pattern of stress distribution. Simulations were conducted by placing the restorative composite resin in a premolar tooth by imitating simple class I cavities. The laboratory and finite element analysis data were significantly different from each other, as determined by 1-way ANOVA. A post hoc analysis was conducted on the bond strength data to further clarify the effects of silane primers. RESULTS The strongest bond of hybrid layer (16.96 MPa) was found in the primer with 25% hydroxyethyl methacrylate, suggesting a barely visible hybrid layer barrier. The control specimens without the application of the primer and the primer specimens with no hydroxyethyl methacrylate exhibited the lowest strength values (8.30 MPa and 11.78 MPa) with intermittent and low visibility of the hybrid layer. These results were supported by finite element analysis that suggested an evenly distributed stress on the model with 25% hydroxyethyl methacrylate. CONCLUSIONS Different compositions of experimental silane primers affected the formation of the hybrid layer and its resulting bond strength.
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Affiliation(s)
- Ammar A Mustafa
- Assistant Professor, Dental Materials Science Department, Faculty of Dentistry, International Islamic University Malaysia, Kuantan Campus, Pahang, Malaysia.
| | - Jukka P Matinlinna
- Associate Professor, Dental Materials Science Department, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, China
| | - Syafiqah Saidin
- Doctor, Clinical Sciences Department, Faculty of Biosciences & Medical Engineering, University of Technology, Malaysia, Johor Bahru, Malaysia
| | - M R Abdul Kadir
- Professor, Medical Devices Technology Group (MEDITEG), Faculty of Biosciences & Medical Engineering, University of Technology, Malaysia, Johor Bahru, Malaysia
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Gascón V, Díaz I, Márquez-Álvarez C, Blanco RM. Mesoporous silicas with tunable morphology for the immobilization of laccase. Molecules 2014; 19:7057-71. [PMID: 24886935 PMCID: PMC6272017 DOI: 10.3390/molecules19067057] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 05/20/2014] [Accepted: 05/23/2014] [Indexed: 11/25/2022] Open
Abstract
Siliceous ordered mesoporous materials (OMM) are gaining interest as supports for enzyme immobilization due to their uniform pore size, large surface area, tunable pore network and the introduction of organic components to mesoporous structure. We used SBA-15 type silica materials, which exhibit a regular 2D hexagonal packing of cylindrical mesopores of uniform size, for non-covalent immobilization of laccase. Synthesis conditions were adjusted in order to obtain supports with different particle shape, where those with shorter channels had higher loading capacity. Despite the similar isoelectric points of silica and laccase and the close match between the size of laccase and the pore dimensions of these SBA-15 materials, immobilization was achieved with very low leaching. Surface modification of macro-/mesoporous amorphous silica by grafting of amine moieties was proved to significantly increase the isoelectric point of this support and improve the immobilization yield.
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Affiliation(s)
- Victoria Gascón
- Instituto de Catálisis y Petroleoquímica, CSIC, Marie Curie 2, Madrid 28049, Spain
| | - Isabel Díaz
- Instituto de Catálisis y Petroleoquímica, CSIC, Marie Curie 2, Madrid 28049, Spain
| | | | - Rosa M Blanco
- Instituto de Catálisis y Petroleoquímica, CSIC, Marie Curie 2, Madrid 28049, Spain.
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Smith MA, Zoelle A, Yang Y, Rioux RM, Hamilton NG, Amakawa K, Nielsen PK, Trunschke A. Surface roughness effects in the catalytic behavior of vanadia supported on SBA-15. J Catal 2014. [DOI: 10.1016/j.jcat.2014.01.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Puglisi A, Benaglia M, Annunziata R, Chiroli V, Porta R, Gervasini A. Chiral Hybrid Inorganic–Organic Materials: Synthesis, Characterization, and Application in Stereoselective Organocatalytic Cycloadditions. J Org Chem 2013; 78:11326-34. [DOI: 10.1021/jo401852v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Alessandra Puglisi
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
| | - Maurizio Benaglia
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
| | - Rita Annunziata
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
| | - Valerio Chiroli
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
| | - Riccardo Porta
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
| | - Antonella Gervasini
- Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy
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Anuar ST, Zhao YY, Mugo SM, Curtis JM. The development of a capillary microreactor for transesterification reactions using lipase immobilized onto a silica monolith. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.03.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Tse NMK, Kennedy DF, Kirby N, Moffat BA, Muir BW, Caruso RA, Drummond CJ. Mesoporous europo-gadolinosilicate nanoparticles as bimodal medical imaging agents and a potential theranostic platform. Adv Healthc Mater 2013; 2:836-45. [PMID: 23296572 DOI: 10.1002/adhm.201200262] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Indexed: 11/11/2022]
Abstract
The mesoporous structure of sol-gel prepared gadolinium and europium doped silicate nanoparticles has been found to be highly dependent on the formulated composition, with synthesised samples displaying both disordered and hexagonally ordered mesoporous packing symmetry. The degree of pore ordering within the nanoparticles has a strong correlation with the total lanthanide (Gd(3+) and Eu(3+) ) concentration. The gadolinosilicates are excellent magnetic resonance imaging (MRI) longitudinal (T1 ) agents. The longitudinal relaxivity (r1 ) and transverse (r2 ) relaxivity, a measure of MRI contrast agent efficiency, were up to four times higher than the clinically employed Omniscan (gadodiamide); with r1 up to 20.6 s(-1) mM(-1) and r2 of 66.2 s(-1) mM(-1) compared to 5.53 and 4.64 s(-1) mM(-1) , respectively, for Omniscan. In addition, the europium content of all the samples studied is below the self-quenching limit, which results in a strong luminescence response from the nanoparticles on excitation at 250 nm. The Eu-Gd silicate nanoparticles act as bimodal imaging agents for MRI and luminescence. These mesoporous nanoparticles also have the potential to serve as encapsulation and controlled release matrices for pharmaceuticals. They are therefore a promising multimodal theranostic platform.
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Affiliation(s)
- Nicholas M. K. Tse
- CSIRO Materials Science and Engineering, Bag 10, Clayton, VIC, 3169, Australia
- School of Chemistry, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Danielle F. Kennedy
- CSIRO Materials Science and Engineering, Bag 10, Clayton, VIC, 3169, Australia
| | - Nigel Kirby
- Australian Synchrotron, 800 Blackburn Rd, Clayton, VIC, 3168, Australia
| | - Bradford A. Moffat
- Department of Radiology, The University of Melbourne, Parkville, VIC, 3050, Australia
| | - Benjamin W. Muir
- CSIRO Materials Science and Engineering, Bag 10, Clayton, VIC, 3169, Australia
| | - Rachel A. Caruso
- CSIRO Materials Science and Engineering, Bag 10, Clayton, VIC, 3169, Australia
- School of Chemistry, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Calum J. Drummond
- CSIRO Materials Science and Engineering, Bag 10, Clayton, VIC, 3169, Australia
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Motos-Pérez B, Roeser J, Thomas A, Hesemann P. Imidazolium-functionalized SBA-15 type silica: efficient organocatalysts for Henry and cycloaddition reactions. Appl Organomet Chem 2013. [DOI: 10.1002/aoc.2974] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Blanca Motos-Pérez
- Institut Charles Gerhardt de Montpellier; Université de Montpellier 2; 340951 Montpellier France
| | - Jérôme Roeser
- Technische Universität Berlin; Institut für Chemie, Funktionsmaterialen; 106231 Berlin Germany
| | - Arne Thomas
- Technische Universität Berlin; Institut für Chemie, Funktionsmaterialen; 106231 Berlin Germany
| | - Peter Hesemann
- Institut Charles Gerhardt de Montpellier; Université de Montpellier 2; 340951 Montpellier France
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25
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Llamas S, Mendoza AJ, Guzmán E, Ortega F, Rubio RG. Salt effects on the air/solution interfacial properties of PEO-containing copolymers: equilibrium, adsorption kinetics and surface rheological behavior. J Colloid Interface Sci 2013; 400:49-58. [PMID: 23582902 DOI: 10.1016/j.jcis.2013.03.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 03/05/2013] [Accepted: 03/06/2013] [Indexed: 10/27/2022]
Abstract
Lithium cations are known to form complexes with the oxygen atoms of poly(oxyethylene) chains. The effect of Li(+) on the surface properties of three block-copolymers containing poly(oxyethylene) (PEO) have been studied. Two types of copolymers have been studied, a water soluble one of the pluronic family, PEO-b-PPO-b-PEO, PPO being poly(propyleneoxyde), and two water insoluble ones: PEO-b-PS and PEO-b-PS-b-PEO, PS being polystyrene. In the case of the pluronic the adsorption kinetics, the equilibrium surface tension isotherm and the aqueous/air surface rheology have been measured, while for the two insoluble copolymers only the surface pressure and the surface rheology have been studied. In all the cases two different Li(+) concentrations have been used. As in the absence of lithium ions, the adsorption kinetics of pluronic solutions shows two processes, and becomes faster as [Li(+)] increases. The kinetics is not diffusion controlled. For a given pluronic concentration the equilibrium surface pressure increases with [Li(+)], and the isotherms show two surface phase transitions, though less marked than for [Li(+)]=0. A similar behavior was found for the equilibrium isotherms of PEO-b-PS and PEO-b-PS-b-PEO. The surface elasticity of these two copolymers was found to increase with [Li(+)] over the whole surface concentration and frequency ranges studied. A smaller effect was found in the case of the pluronic solutions. The results of the pluronic solutions were modeled using a recent theory that takes into account that the molecules can be adsorbed at the surface in two different states. The theory gives a good fit for the adsorption kinetics and a reasonably good prediction of the equilibrium isotherms for low and intermediate concentrations of pluronic. However, the theory is not able to reproduce the isotherm for [Li(+)]=0. Only a semi-quantitative prediction of the surface elasticity is obtained for [pluronic]≤1×10(-3) mM.
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Affiliation(s)
- Sara Llamas
- Departamento de Química Física I, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
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26
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Vyhmeister E, Valdés-González H, Muscat AJ, Suleiman D, Estévez LA. Surface Modification of Porous Silicon-Based Films Using Dichlorosilanes Dissolved in Supercritical Carbon Dioxide. Ind Eng Chem Res 2013. [DOI: 10.1021/ie302686e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Eduardo Vyhmeister
- Escuela de Industrias, Facultad de
Ingeniería, Universidad Andres Bello, Sazie 2325, Santiago,
Chile
| | - Héctor Valdés-González
- Escuela de Industrias, Facultad de
Ingeniería, Universidad Andres Bello, Sazie 2325, Santiago,
Chile
| | - Anthony J. Muscat
- Department of Chemical and Environmental
Engineering, University of Arizona, Arizona
85721, United States
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27
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Mellaerts R, Fayad EJ, Van den Mooter G, Augustijns P, Rivallan M, Thibault-Starzyk F, Martens JA. In Situ FT-IR Investigation of Etravirine Speciation in Pores of SBA-15 Ordered Mesoporous Silica Material upon Contact with Water. Mol Pharm 2013; 10:567-73. [DOI: 10.1021/mp300229q] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Randy Mellaerts
- Centre for Surface Chemistry
and Catalysis, Kasteelpark Arenberg 23, Katholieke Universiteit Leuven, BE-3001 Heverlee, Belgium
| | - Elie J. Fayad
- Laboratoire Catalyse et Spectrochimie,
ENSICAEN, Université de Caen Basse-Normandie, CNRS, Boulevard Maréchal Juin 6, 14050 Caen, France
| | - Guy Van den Mooter
- Laboratory for Pharmacotechnology and Biopharmacy, O&N2, Herestraat 49-box 921, Katholieke Universiteit Leuven, BE-3000 Leuven, Belgium
| | - Patrick Augustijns
- Laboratory for Pharmacotechnology and Biopharmacy, O&N2, Herestraat 49-box 921, Katholieke Universiteit Leuven, BE-3000 Leuven, Belgium
| | - Mickaël Rivallan
- Laboratoire Catalyse et Spectrochimie,
ENSICAEN, Université de Caen Basse-Normandie, CNRS, Boulevard Maréchal Juin 6, 14050 Caen, France
| | - Frédéric Thibault-Starzyk
- Laboratoire Catalyse et Spectrochimie,
ENSICAEN, Université de Caen Basse-Normandie, CNRS, Boulevard Maréchal Juin 6, 14050 Caen, France
| | - Johan A. Martens
- Centre for Surface Chemistry
and Catalysis, Kasteelpark Arenberg 23, Katholieke Universiteit Leuven, BE-3001 Heverlee, Belgium
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28
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Ciotonea C, Dragoi B, Ungureanu A, Chirieac A, Petit S, Royer S, Dumitriu E. Nanosized transition metals in controlled environments of phyllosilicate–mesoporous silica composites as highly thermostable and active catalysts. Chem Commun (Camb) 2013; 49:7665-7. [DOI: 10.1039/c3cc43197e] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Pereira RFP, Valente AJM, Burrows HD, de Zea Bermudez V, Carvalho RA, Castro RAE. Structural characterization of solid trivalent metal dodecyl sulfates: from aqueous solution to lamellar superstructures. RSC Adv 2013. [DOI: 10.1039/c2ra21906a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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30
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Gan YX. Structural assessment of nanocomposites. Micron 2012; 43:782-817. [DOI: 10.1016/j.micron.2012.02.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2011] [Revised: 02/08/2012] [Accepted: 02/08/2012] [Indexed: 10/28/2022]
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31
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Bolivar JM, Nidetzky B. Oriented and selective enzyme immobilization on functionalized silica carrier using the cationic binding module Zbasic2: Design of a heterogeneous D-amino acid oxidase catalyst on porous glass. Biotechnol Bioeng 2012; 109:1490-8. [DOI: 10.1002/bit.24423] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Revised: 12/10/2011] [Accepted: 12/19/2011] [Indexed: 11/08/2022]
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32
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Pereira RFP, Tapia MJ, Valente AJM, Burrows HD. Effect of metal ion hydration on the interaction between sodium carboxylates and aluminum(III) or chromium(III) ions in aqueous solution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:168-177. [PMID: 22107111 DOI: 10.1021/la2034164] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The interaction between sodium octanoate, decanoate, and dodecanoate and aluminum(III) and chromium(III) has been studied in water at natural pH values, starting well below the surfactant critical micelle concentration, using electrical conductivity, turbidity, and potentiometric measurements. With decanoate or dodecanoate, maximum interaction occurs at 3:1 stoichiometry, corresponding to charge neutralization. Although the solutions become turbid with both metal ions, indicating phase separation, differences are observed and attributed to the fact that aluminum(III) is relatively labile to substitution and rapidly replaces its water ligands, whereas chromium(III) is substitution inert. This shows up in well-defined floc formation with Al(3+), whereas Cr(3+) suspensions do not precipitate, probably because that replacement of coordinated water by carboxylate ligands is impeded. This can be overcome by increasing temperature, and differences in the thermal behavior with Al(3+) and Cr(3+) are suggested to be due to increased involvement of substitution reactions in the latter case. The effect of octanoate on the trivalent metal ions is less clear, and with Cr(3+) interaction only occurs when the carboxylate is in excess. Hydrophobic interactions between alkyl chains play a major role in driving phase separation. At high surfactant concentrations, the solid phases do not dissolve, in contrast to what is observed with the corresponding alkylsulfates. This has implications for use of these systems in metal separation through froth flotation. The concentration of metal ions in supernatant solution has been determined for sodium dodecanoate and sodium dodecylsulfate with Al(3+) and Cr(3+) over the whole surfactant concentration range by inductively coupled plasma-mass spectrometry (ICP-MS). From this, association constants have been determined and are found to be larger for the carboxylate than the alkylsulfate, in agreement with the greater Lewis basicity of the -CO(2)(-) group.
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Affiliation(s)
- Rui F P Pereira
- Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal
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Chi Y, Zhao L, Yuan Q, Yan X, Li Y, Li N, Li X. In situ auto-reduction of silver nanoparticles in mesoporous carbon with multifunctionalized surfaces. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31854g] [Citation(s) in RCA: 40] [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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35
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Reichhardt NV, Guillet-Nicolas R, Thommes M, Klösgen B, Nylander T, Kleitz F, Alfredsson V. Mapping the location of grafted PNIPAAM in mesoporous SBA-15 silica using gas adsorption analysis. Phys Chem Chem Phys 2012; 14:5651-61. [DOI: 10.1039/c2cp22523a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Reichhardt NV, Nylander T, Klösgen B, Alfredsson V, Kocherbitov V. Porosity and surface properites of SBA-15 with grafted PNIPAAM: a water sorption calorimetry study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:13838-46. [PMID: 21928772 PMCID: PMC3324985 DOI: 10.1021/la203093u] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 09/16/2011] [Indexed: 05/31/2023]
Abstract
Mesoporous silica SBA-15 was modified in a three-step process to obtain a material with poly-N-isopropylacrylamide (PNIPAAM) grafted onto the inner pore surface. Water sorption calorimetry was implemented to characterize the materials obtained after each step regarding the porosity and surface properties. The modification process was carried out by (i) increasing the number of surface silanol groups, (ii) grafting 1-(trichlorosilyl)-2-(m-/p-(chloromethylphenyl) ethane, acting as an anchor for (iii) the polymerization of N-isopropylacrylamide. Water sorption isotherms and the enthalpy of hydration are presented. Pore size distributions were calculated on the basis of the water sorption isotherms by applying the BJH model. Complementary measurements with nitrogen sorption and small-angle X-ray diffraction are presented. The increase in the number of surface silanol groups occurs mainly in the intrawall pores, the anchor is mainly located in the intrawall pores, and the intrawall pore volume is absent after the surface grafting of PNIPAAM. Hence, PNIPAAM seals off the intrawall pores. Water sorption isotherms directly detect the presence of intrawall porosity. Pore size distributions can be calculated from the isotherms. Furthermore, the technique provides information regarding the hydration capability (i.e., wettability of different chemical surfaces) and thermodynamic information.
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Affiliation(s)
- N V Reichhardt
- Physical Chemistry, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.
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37
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Aziz B, Zhao G, Hedin N. Carbon dioxide sorbents with propylamine groups-silica functionalized with a fractional factorial design approach. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:3822-3834. [PMID: 21361345 DOI: 10.1021/la104629m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Mesoporous silica particles (Davisil) were functionalized with aminopropyltriethoxysilane (APTES) in a fractional factorial design with 19 different synthesis and uptake experiments. The number of amino groups and the uptake of CO(2) were optimized in a 2(V)(5-1) design. Most important to functionalization was the amount of water present during synthesis, the reaction time, and pretreating the silica with a mineral acid; certain two-way interactions were shown to be statistically significant as well. Modifications performed at 110 or 80 °C showed no significant differences concerning amine content or uptake of CO(2). Properly choosing center points for the discrete variables is problematic and is somewhat related to the lack of fit with respect to CO(2) uptake; the regression was good. Solid-state (29)Si NMR showed that the APTES was mainly fully condensed. Specific surface areas did not correlate with the number of n-propylamine groups on the silica, which is indicative of differential levels of heterogeneity in the coverage of propylamines. The uptake of CO(2) and N(2) was measured from -20 to 70 °C and from 0 to 1 bar and parametrized by the Freundlich isotherm. Amine-modified silica adsorbed significant amounts of CO(2), especially at the low partial pressure, which is important for CO(2) capture from flue gas. At such pressures, samples with a high density of amine (4 amines/nm(2)) showed a much higher uptake of CO(2) than did those with densities of ∼2-3 amines/nm(2), reflecting differential tendencies to form propylammonium-propylcarbamate ion pairs; these require close proximity among amine groups to form. Water affected the uptake of carbon dioxide in different ways. Certain samples took up more moist CO(2) gas than dry CO(2), and others took up less moist CO(2) than dry CO(2), which is indicative of differential tendencies toward water adsorption. We conclude that experimental design is a time-efficient approach to the functionalization of silica with propylamine groups.
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Affiliation(s)
- Baroz Aziz
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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38
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Abstract
This Review aims to give an overview of recent research in the area of porous, organic-inorganic and purely organic, functional materials. Possibilities for introducing organic groups that exhibit chemical and/or physical functions into porous materials will be described, with a focus on the incorporation of such functional groups as a supporting part of the pore walls. The number of organic groups in the network can be increased such that porous, purely organic materials are obtained.
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Affiliation(s)
- Arne Thomas
- Institute of Chemistry: Functional Materials, Technische Universität Berlin, Englische Strasse 20, 10587 Berlin, Germany.
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39
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Lelli M, Gajan D, Lesage A, Caporini MA, Vitzthum V, Miéville P, Héroguel F, Rascón F, Roussey A, Thieuleux C, Boualleg M, Veyre L, Bodenhausen G, Coperet C, Emsley L. Fast Characterization of Functionalized Silica Materials by Silicon-29 Surface-Enhanced NMR Spectroscopy Using Dynamic Nuclear Polarization. J Am Chem Soc 2011; 133:2104-7. [DOI: 10.1021/ja110791d] [Citation(s) in RCA: 241] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Moreno Lelli
- Centre de RMN à Très
Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - David Gajan
- Institut de Chimie de Lyon,
C2P2, UMR 5265, Université de Lyon (CNRS−Université Lyon 1−ESCPE Lyon), ESCPE
Lyon, 69100 Villeurbanne, France
- Department of Chemistry, ETH Zürich, CH-8093 Zürich,
Switzerland
| | - Anne Lesage
- Centre de RMN à Très
Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
| | - Marc A. Caporini
- Institut des Sciences et Ingénierie
Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Veronika Vitzthum
- Institut des Sciences et Ingénierie
Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Pascal Miéville
- Institut des Sciences et Ingénierie
Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - Florent Héroguel
- Institut de Chimie de Lyon,
C2P2, UMR 5265, Université de Lyon (CNRS−Université Lyon 1−ESCPE Lyon), ESCPE
Lyon, 69100 Villeurbanne, France
- Department of Chemistry, ETH Zürich, CH-8093 Zürich,
Switzerland
| | - Fernando Rascón
- Institut de Chimie de Lyon,
C2P2, UMR 5265, Université de Lyon (CNRS−Université Lyon 1−ESCPE Lyon), ESCPE
Lyon, 69100 Villeurbanne, France
- Department of Chemistry, ETH Zürich, CH-8093 Zürich,
Switzerland
| | - Arthur Roussey
- Institut de Chimie de Lyon,
C2P2, UMR 5265, Université de Lyon (CNRS−Université Lyon 1−ESCPE Lyon), ESCPE
Lyon, 69100 Villeurbanne, France
| | - Chloé Thieuleux
- Institut de Chimie de Lyon,
C2P2, UMR 5265, Université de Lyon (CNRS−Université Lyon 1−ESCPE Lyon), ESCPE
Lyon, 69100 Villeurbanne, France
| | - Malika Boualleg
- Institut de Chimie de Lyon,
C2P2, UMR 5265, Université de Lyon (CNRS−Université Lyon 1−ESCPE Lyon), ESCPE
Lyon, 69100 Villeurbanne, France
| | - Laurent Veyre
- Institut de Chimie de Lyon,
C2P2, UMR 5265, Université de Lyon (CNRS−Université Lyon 1−ESCPE Lyon), ESCPE
Lyon, 69100 Villeurbanne, France
| | - Geoffrey Bodenhausen
- Institut des Sciences et Ingénierie
Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
- Département
de Chimie, Ecole Normale Supérieure, 75231 Paris Cedex 05, France
- CNRS, UMR 7203, and Université de Pierre-et-Marie Curie, 75005 Paris,
France
| | - Christophe Coperet
- Institut de Chimie de Lyon,
C2P2, UMR 5265, Université de Lyon (CNRS−Université Lyon 1−ESCPE Lyon), ESCPE
Lyon, 69100 Villeurbanne, France
- Department of Chemistry, ETH Zürich, CH-8093 Zürich,
Switzerland
| | - Lyndon Emsley
- Centre de RMN à Très
Hauts Champs, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France
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40
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Griffith CS, De Los Reyes M, Scales N, Hanna JV, Luca V. Hybrid inorganic-organic adsorbents Part 1: Synthesis and characterization of mesoporous zirconium titanate frameworks containing coordinating organic functionalities. ACS APPLIED MATERIALS & INTERFACES 2010; 2:3436-3446. [PMID: 21073158 DOI: 10.1021/am100891u] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A series of functional hybrid inorganic-organic adsorbent materials have been prepared through postsynthetic grafting of mesoporous zirconium titanate xerogel powders using a range of synthesized and commercial mono-, bis-, and tris-phosphonic acids, many of which have never before been investigated for the preparation of hybrid phases. The hybrid materials have been characterized using thermogravimetric analysis, diffuse reflectance infrared (DRIFT) and 31P MAS NMR spectroscopic techniques and their adsorption properties studied using a 153Gd radiotracer. The highest level of surface functionalization (molecules/nm2) was observed for methylphosphonic acid (∼3 molecules/nm2). The level of functionalization decreased with an increase in the number of potential surface coordinating groups of the phosphonic acids. Spectral decomposition of the DRIFT and 31P MAS NMR spectra showed that each of the phosphonic acid molecules coordinated strongly to the metal oxide surface but that for the 1,1-bis-phosphonic acids and tris-phosphonic acids the coordination was highly variable resulting in a proportion of free or loosely coordinated phosphonic acid groups. Functionalization of a porous mixed metal oxide framework with the tris-methylenephosphonic acid (ATMP-ZrTi-0.33) resulted in a hybrid with the highest affinity for 153Gd3+ in nitric acid solutions across a wide range of acid concentrations. The ATMP-ZrTi-0.33 hybrid material extracted 153Gd3+ with a Kd value of 1×10(4) in 0.01 M HNO3 far exceeding that of the other hybrid phases. The unfunctionalized mesoporous mixed metal oxide had negligible affinity for Gd3+ (Kd<100) under identical experimental conditions. It has been shown that the presence of free or loosely coordinated phosphonic acid groups does not necessarily translate to affinity for 153Gd3+. The theoretical cation exchange capacity of the ATMP-ZrTi-0.33 hybrid phase for Gd3+ has been determined to be about 0.005 mmol/g in 0.01 M HNO3. This behavior and that of the other hybrid phases suggests that the surface-bound ATMP ligand functions as a chelating ligand toward 153Gd3+ under these acidic conditions.
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Affiliation(s)
- Christopher S Griffith
- Institute of Materials Engineering and ANSTO Minerals, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
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Yu Y, Wu R, Clark M. Phosphate removal by hydrothermally modified fumed silica and pulverized oyster shell. J Colloid Interface Sci 2010; 350:538-43. [DOI: 10.1016/j.jcis.2010.06.033] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Revised: 06/08/2010] [Accepted: 06/11/2010] [Indexed: 11/30/2022]
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