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Hwang J, Jo C, Hur K, Lim J, Kim S, Lee J. Direct Access to Hierarchically Porous Inorganic Oxide Materials with Three-Dimensionally Interconnected Networks. J Am Chem Soc 2014; 136:16066-72. [DOI: 10.1021/ja5091172] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jongkook Hwang
- Department
of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea
| | - Changshin Jo
- Department
of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea
| | - Kahyun Hur
- Center
for Computational Science, Korea Institute of Science and Technology (KIST), Seoul 136-791, Republic of Korea
| | - Jun Lim
- Beamline
Division, Pohang Light Source, Pohang 790-784, Republic of Korea
| | - Seongseop Kim
- Department
of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea
| | - Jinwoo Lee
- Department
of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea
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52
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Sudhakar N, Singh RK, Mishra SK, Kannan S. Quantitative studies on the size induced anatase to rutile phase transformation in TiO2–SiO2binary oxides during heat treatments. RSC Adv 2014. [DOI: 10.1039/c4ra07652d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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53
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Li Y, Bastakoti BP, Imura M, Suzuki N, Jiang X, Ohki S, Deguchi K, Suzuki M, Arai S, Yamauchi Y. Synthesis of a Large-Sized Mesoporous Phosphosilicate Thin Film through Evaporation-Induced Polymeric Micelle Assembly. Chem Asian J 2014; 10:183-7. [DOI: 10.1002/asia.201402636] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Indexed: 11/07/2022]
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54
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Wang P, Du M, Zhang M, Zhu H, Bao S. The preparation of tubular heterostructures based on titanium dioxide and silica nanotubes and their photocatalytic activity. Dalton Trans 2014; 43:1846-53. [PMID: 24257115 DOI: 10.1039/c3dt51959g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tubular heterostructures based on titanium dioxide (TiO2) and silica nanotubes (SNTs) with high photocatalytic activity have been successfully obtained by a simple combination of an electrospinning technique and a solvothermal process. The as-prepared products were characterized by field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and N2 absorption-desorption experiments. The results confirmed that SNTs with high specific surface area were obtained by efficiently controlling the phase separation and solvent evaporation during the process of electrospinning and calcination, and TiO2 was successfully grown on the SNT substrates. The obtained titanium dioxide/silica nanotubes (TiO2/SNTs) heterostructures showed high photocatalytic activities to degrade Rhodamine 6G because of the formation of heterostructures, which might improve the separation of photogenerated electrons and holes. Furthermore, the TiO2/SNTs heterostructures could be easily recycled without an evident decrease in photocatalytic activity.
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Affiliation(s)
- Pan Wang
- Zhejiang Sci-Tech University, Hangzhou, China.
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55
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Abstract
Highly ordered mesoporous silica nanofibers with no core/sheath structure were prepared by coaxial electrospinning combined with the solvent evaporation induced surfactant assembly process. The mesoporous structures have been proved and the effect of different cosurfactants on pore sizes of mesoporous silica nanofibers has been investigated.
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56
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Qian X, Fuku K, Kuwahara Y, Kamegawa T, Mori K, Yamashita H. Design and functionalization of photocatalytic systems within mesoporous silica. CHEMSUSCHEM 2014; 7:1528-1536. [PMID: 24828540 DOI: 10.1002/cssc.201400111] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/05/2014] [Indexed: 06/03/2023]
Abstract
In the past decades, various photocatalysts such as TiO2, transition-metal-oxide moieties within cavities and frameworks, or metal complexes have attracted considerable attention in light-excited catalytic processes. Owing to high surface areas, transparency to UV and visible light as well as easily modified surfaces, mesoporous silica-based materials have been widely used as excellent hosts for designing efficient photocatalytic systems under the background of environmental remediation and solar-energy utilization. This Minireview mainly focuses on the surface-chemistry engineering of TiO2/mesoporous silica photocatalytic systems and fabrication of binary oxides and nanocatalysts in mesoporous single-site-photocatalyst frameworks. Recently, metallic nanostructures with localized surface plasmon resonance (LSPR) have been widely studied in catalytic applications harvesting light irradiation. Accordingly, silver and gold nanostructures confined in mesoporous silica and their corresponding catalytic activity enhanced by the LSPR effect will be introduced. In addition, the integration of metal complexes within mesoporous silica materials for the construction of functional inorganic-organic supramolecular photocatalysts will be briefly described.
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Affiliation(s)
- Xufang Qian
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871 (Japan)
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Li Y, Bastakoti BP, Imura M, Hwang SM, Sun Z, Kim JH, Dou SX, Yamauchi Y. Synthesis of Mesoporous TiO2/SiO2Hybrid Films as an Efficient Photocatalyst by Polymeric Micelle Assembly. Chemistry 2014; 20:6027-32. [DOI: 10.1002/chem.201304689] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 02/19/2014] [Indexed: 11/06/2022]
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58
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Considerations to improve adsorption and photocatalysis of low concentration air pollutants on TiO2. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.10.089] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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59
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Zaccariello G, Moretti E, Storaro L, Riello P, Canton P, Gombac V, Montini T, Rodríguez-Castellón E, Benedetti A. TiO2–mesoporous silica nanocomposites: cooperative effect in the photocatalytic degradation of dyes and drugs. RSC Adv 2014. [DOI: 10.1039/c4ra06767c] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Titania nanoparticles were confined inside the pore channels of preformed mesoporous silica nanoparticles (MSNs) for the photodegradation of dyes and drugs.
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Affiliation(s)
- G. Zaccariello
- Department of Molecular Sciences and Nanosystems
- Ca' Foscari University of Venice
- INSTM Venice Research Unit
- Venezia, Italy
| | - E. Moretti
- Department of Molecular Sciences and Nanosystems
- Ca' Foscari University of Venice
- INSTM Venice Research Unit
- Venezia, Italy
| | - L. Storaro
- Department of Molecular Sciences and Nanosystems
- Ca' Foscari University of Venice
- INSTM Venice Research Unit
- Venezia, Italy
| | - P. Riello
- Department of Molecular Sciences and Nanosystems
- Ca' Foscari University of Venice
- INSTM Venice Research Unit
- Venezia, Italy
- Centro di Microscopia Elettronica “Giovanni Stevanato”
| | - P. Canton
- Department of Molecular Sciences and Nanosystems
- Ca' Foscari University of Venice
- INSTM Venice Research Unit
- Venezia, Italy
- Centro di Microscopia Elettronica “Giovanni Stevanato”
| | - V. Gombac
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- ICCOM-CNR Trieste Research Unit and INSTM Trieste Research Unit
- 34127 Trieste, Italy
| | - T. Montini
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- ICCOM-CNR Trieste Research Unit and INSTM Trieste Research Unit
- 34127 Trieste, Italy
| | - E. Rodríguez-Castellón
- Departamento de Química Inorgánica
- Cristalografía y Mineralogía
- Facultad de Ciencias
- Universidad de Málaga
- Campus de Teatinos
| | - A. Benedetti
- Department of Molecular Sciences and Nanosystems
- Ca' Foscari University of Venice
- INSTM Venice Research Unit
- Venezia, Italy
- Centro di Microscopia Elettronica “Giovanni Stevanato”
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Abstract
Templating is one of the most important techniques for the controlled synthesis of nanostructured materials. This powerful tool uses a pre-existing guide with desired nanoscale features to direct the formation of nanomaterials into forms that are otherwise difficult to obtain. As a result, templated synthesis is capable of producing nanostructures with unique structures, morphologies and properties. In this review, we summarize the general principles of templated synthesis and cover recent developments in this area. As a wide variety of synthesis techniques are utilized to produce nanomaterials using template-based methods, the discussion is organized around the various types of common templates. We examine the use of both physical and chemical hard colloidal templates, soft templates, and other non-colloidal templates, followed by our perspective on the state of the field and potential future directions.
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Affiliation(s)
- Yiding Liu
- Department of Chemistry, University of California, Riverside, CA 92521, USA
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62
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Llordés A, Garcia G, Gazquez J, Milliron DJ. Tunable near-infrared and visible-light transmittance in nanocrystal-in-glass composites. Nature 2013; 500:323-6. [DOI: 10.1038/nature12398] [Citation(s) in RCA: 615] [Impact Index Per Article: 55.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 06/12/2013] [Indexed: 12/21/2022]
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63
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Lyu J, Zhu L, Burda C. Optimizing Nanoscale TiO2for Adsorption-Enhanced Photocatalytic Degradation of Low-Concentration Air Pollutants. ChemCatChem 2013. [DOI: 10.1002/cctc.201300308] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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64
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Li A, Jin Y, Muggli D, Pierce DT, Aranwela H, Marasinghe GK, Knutson T, Brockman G, Zhao JX. Nanoscale effects of silica particle supports on the formation and properties of TiO2 nanocatalysts. NANOSCALE 2013; 5:5854-5862. [PMID: 23695432 DOI: 10.1039/c3nr01287e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Small TiO2 crystals in the anatase phase are in high demand as photocatalysts. Stable TiO2 crystals in the anatase phase were obtained using a silica nanoparticle as a support. The focus of this study was to investigate the nanoscale effect of the silica support on the formation and properties of small anatase crystals. The experiments were carried out using powder X-ray diffraction, differential thermal analysis, transmission electron microscopy, and energy dispersion spectroscopy. The results showed that the size of the silica support played a crucial role in crystallization of TiO2 and regulation of TiO2 properties, including phase transition, crystal size, thermodynamic property and catalytic activity. A nanoscale curvature model of the spherical silica support was proposed to explain these size effects. Finally, the developed TiO2 catalysts were applied to the oxidation of methanol using a high-throughput photochemical reactor. The size effect of the silica supports on the TiO2 catalytic efficiency was demonstrated using this system.
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Affiliation(s)
- Aize Li
- Department of Chemistry, University of North Dakota, Grand Forks, ND 58202, USA
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65
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Sree SP, Dendooven J, Masschaele K, Hamed HM, Deng S, Bals S, Detavernier C, Martens JA. Synthesis of uniformly dispersed anatase nanoparticles inside mesoporous silica thin films via controlled breakup and crystallization of amorphous TiO2 deposited using atomic layer deposition. NANOSCALE 2013; 5:5001-5008. [PMID: 23636429 DOI: 10.1039/c3nr00594a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Amorphous titanium dioxide was introduced into the pores of mesoporous silica thin films with 75% porosity and 12 nm average pore diameter via Atomic Layer Deposition (ALD) using alternating pulses of tetrakis(dimethylamino)titanium and water. Calcination provoked fragmentation of the deposited amorphous TiO2 phase and its crystallization into anatase nanoparticles inside the nanoporous film. The narrow particle size distribution of 4 ± 2 nm and the uniform dispersion of the particles over the mesoporous silica support were uniquely revealed using electron tomography. These anatase nanoparticle bearing films showed photocatalytic activity in methylene blue degradation. This new synthesis procedure of the anatase nanophase in mesoporous silica films using ALD is a convenient fabrication method of photocatalytic coatings amenable to application on very small as well as very large surfaces.
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66
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WEI W, YU C, ZHAO Q, QIAN X, WAN Y. Ordered mesoporous carbon-based titania as a reusable adsorbent-catalyst for removing phenol from water. CHINESE JOURNAL OF CATALYSIS 2013. [DOI: 10.1016/s1872-2067(12)60567-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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67
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Cao X, Liu S, Feng Q, Wang N. Silver nanowire-based electrochemical immunoassay for sensing immunoglobulin G with signal amplification using strawberry-like ZnO nanostructures as labels. Biosens Bioelectron 2013; 49:256-62. [PMID: 23774162 DOI: 10.1016/j.bios.2013.05.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 05/20/2013] [Accepted: 05/20/2013] [Indexed: 12/17/2022]
Abstract
The quick development of nanoscience and nanotechnology has paved the way for ultrasensitive biosensing and analysis. In this work, an ultrasensitive electrochemical immunosensor was developed for the detection of human immunoglobulin G (IgG) by combining with a newly designed trace tag on a disposable immunosensor array. The array was prepared by immobilizing captured antibodies on ultralong Ag nanowires, whilst the trace tag was prepared by loading horseradish peroxidase (HRP)-labeled goat anti-human IgG (HRP-anti-IgG) on thionine (TH)-doped mesoporous ZnO nanostrawberries (MP-ZnO). With a sandwich-type immunoassay format, mainly due to crystalline framework and high surface area of the mesoporous (MP) materials, as well as the superconductivity of silver nanowires, the electrochemical signal was significantly amplified. The linear range of the developed immunosensor is 0.01-200 ng mL(-1) and the detection limit is 4 pg mL(-1) IgG, which make the hierarchically nanostructured composites very promising candidates for the next-generation sandwich-type electrochemical immunoassays.
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Affiliation(s)
- Xia Cao
- School of Biochemical and Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China.
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68
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Physicochemical properties and photocatalytic activity of the TiO2/SiO2 prepared by precipitation method. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.01.037] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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69
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An K, Musselwhite N, Kennedy G, Pushkarev VV, Robert Baker L, Somorjai GA. Preparation of mesoporous oxides and their support effects on Pt nanoparticle catalysts in catalytic hydrogenation of furfural. J Colloid Interface Sci 2013. [DOI: 10.1016/j.jcis.2012.10.029] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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70
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71
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Li L, Shi J, Li G, Yuan Y, Li Y, Zhao W, Shi J. One-pot pyrolytic synthesis of C–N-codoped mesoporous anatase TiO2and its highly efficient photo-degradation properties. NEW J CHEM 2013. [DOI: 10.1039/c2nj40901a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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72
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Su J, Zou X, Li GD, Jiang YM, Cao Y, Zhao J, Chen JS. Room-temperature spontaneous crystallization of porous amorphous titania into a high-surface-area anatase photocatalyst. Chem Commun (Camb) 2013; 49:8217-9. [DOI: 10.1039/c3cc43772h] [Citation(s) in RCA: 36] [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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73
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Wei W, Yu C, Zhao Q, Li G, Wan Y. Improvement of the Visible-Light Photocatalytic Performance of TiO2by Carbon Mesostructures. Chemistry 2012; 19:566-77. [DOI: 10.1002/chem.201202691] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Indexed: 11/08/2022]
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74
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Kong L, Wei W, Zhao Q, Wang JQ, Wan Y. Active Coordinatively Unsaturated Manganese Monoxide-Containing Mesoporous Carbon Catalyst in Wet Peroxide Oxidation. ACS Catal 2012. [DOI: 10.1021/cs300534y] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lina Kong
- Key Laboratory of Resource Chemistry
of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional
Materials, and Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Wei Wei
- Key Laboratory of Resource Chemistry
of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional
Materials, and Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Qingfei Zhao
- Key Laboratory of Resource Chemistry
of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional
Materials, and Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Jian-Qiang Wang
- Shanghai Synchrotron Radiation
Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, P. R. China
| | - Ying Wan
- Key Laboratory of Resource Chemistry
of Ministry of Education, Shanghai Key Laboratory of Rare Earth Functional
Materials, and Department of Chemistry, Shanghai Normal University, Shanghai 200234, P. R. China
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75
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Patra AK, Dutta A, Bhaumik A. Highly ordered mesoporous TiO2-Fe2O3 mixed oxide synthesized by sol-gel pathway: an efficient and reusable heterogeneous catalyst for dehalogenation reaction. ACS APPLIED MATERIALS & INTERFACES 2012; 4:5022-5028. [PMID: 22939382 DOI: 10.1021/am301394u] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Highly ordered two-dimensional (2D) hexagonal TiO(2)-Fe(2)O(3) mixed-oxide material MFT-1, which is composed of very tiny nanoparticles, is synthesized using sodium dodecylsulfate (SDS) as a structure-directing agent. Interestingly, synthesis of an ordered mesophase was not possible using SDS as a template for mesoporous pure Fe(2)O(3) or TiO(2) phases. This mesoporous iron-titanium mixed-oxide material has been characterized by powder X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), N(2) sorption, ultraviolet-visible light diffuse reflectance spectroscopy (UV-vis DRS) studies. N(2) sorption analysis revealed high surface areas (126-385 m(2) g(-1)) and narrow pore size distributions (3.1-3.4 nm) for different samples. UV-vis DRS spectra and wide-angle powder XRD patterns indicate that the material is composed of α-Fe(2)O(3) and anatase TiO(2) phases. This TiO(2)-Fe(2)O(3) mixed-oxide material can act as a very efficient and reusable catalyst in the dehalogenation of aromatic chloride-, bromide-, and iodide-tolerating -F, -CN, -CH(3), -OCH(3) and -NO(2) functional groups in the aromatic ring using 2-propanol as the dispersion medium.
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Affiliation(s)
- Astam K Patra
- Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India
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76
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Dong W, Sun Y, Ma Q, Zhu L, Hua W, Lu X, Zhuang G, Zhang S, Guo Z, Zhao D. Excellent photocatalytic degradation activities of ordered mesoporous anatase TiO2-SiO2 nanocomposites to various organic contaminants. JOURNAL OF HAZARDOUS MATERIALS 2012; 229-230:307-320. [PMID: 22749122 DOI: 10.1016/j.jhazmat.2012.06.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Revised: 05/29/2012] [Accepted: 06/02/2012] [Indexed: 06/01/2023]
Abstract
Ordered 2-D hexagonal mesoporous TiO(2)-SiO(2) nanocomposites consisted of anatase TiO(2) nanocrystals and amorphous SiO(2) nanoparticles, with large mesochannels and high specific surface areas, have been extensively and detailedly evaluated using various cationic dyes (methylene blue, safranin O, crystal violet, brilliant green, basic fuchsin and rhodamine-6G), anionic dyes (acid fuchsin, orange II, reactive brilliant red X3B and acid red 1) and microcystin-LR. We use mesoporous 80TiO(2)-20SiO(2)-900 for the degradation of cationic dyes and MC-LR, due to the dominant adsorption of SiOH groups and synergistic role of coupled adsorption and photocatalytic oxidation. For anionic dyes, due to the adsorption results predominantly from TiOH groups, our strategy realizes the enhanced photocatalytic oxidation by strong surface acids and larger available specific surface area. Based on this, we prepared 90TiO(2)-10SiO(2)-700 to degrade them. The results show that our samples exhibit excellent degradation activities to all the contaminants, which are much higher than that of P25 photocatalyst. The dyes are not only decolorized promptly but degraded readily as well. It is strongly indicated that our mesoporous nanocomposites are considerably stable and reusable. These results demonstrate that our mesoporous TiO(2)-SiO(2) nanocomposites present extensive and promising application in the fast and highly efficient degradation of various organic pollutants.
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Affiliation(s)
- Weiyang Dong
- Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, PR China.
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77
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Wang ST, Wang MY, Su X, Yuan BF, Feng YQ. Facile Preparation of SiO2/TiO2 Composite Monolithic Capillary Column and Its Application in Enrichment of Phosphopeptides. Anal Chem 2012; 84:7763-70. [DOI: 10.1021/ac301258q] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Shao-Ting Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine
(Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Meng-Ya Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine
(Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Xin Su
- Key Laboratory of Analytical Chemistry for Biology and Medicine
(Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Bi-Feng Yuan
- Key Laboratory of Analytical Chemistry for Biology and Medicine
(Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
| | - Yu-Qi Feng
- Key Laboratory of Analytical Chemistry for Biology and Medicine
(Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, P.R. China
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78
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Xu L, Shi W, Guan J. Preparation of crystallized mesoporous CdS/Ta2O5 composite assisted by silica reinforcement for visible light photocatalytic hydrogen evolution. CATAL COMMUN 2012. [DOI: 10.1016/j.catcom.2012.03.037] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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79
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Teng Z, Su X, Chen G, Tian C, Li H, Ai L, Lu G. Superparamagnetic high-magnetization composite microspheres with Fe3O4@SiO2 core and highly crystallized mesoporous TiO2 shell. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.03.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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80
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Design and Synthesis of Functional Silsesquioxane-Based Hybrids by Hydrolytic Condensation of Bulky Triethoxysilanes. INT J POLYM SCI 2012. [DOI: 10.1155/2012/173624] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This paper presents a short overview of recent advances in the design and synthesis of organic-inorganic hybrids using silsesquioxane-based nanoparticles having nanometer size, relatively narrow size distribution, high functionalities, and various characteristic features, mainly focusing on our recent researches related to the subject. A highlight of this paper is the water-soluble silsesquioxane-based nanoparticles, including hydroxyl-functionalized and cationic silsesquioxanes, which were synthesized via the one-step condensation of the bulky triethoxysilane precursors. The design and synthesis of R-SiO1.5/SiO2and R-SiO1.5/TiO2hybrids by hydrolytic cocondensation of a triethoxysilane precursor and metal alkoxides are briefly introduced. This paper also deals with recent results in stimuli-responsive hybrids based on the water-soluble silsesquioxane nanoparticles and fluorinated and amphiphilic silsesquioxane hybrids.
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81
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82
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Wang H, Wu D, Li D, Niu Z, Chen Y, Tang D, Wu M, Cao J, Huang Y. Fabrication of continuous highly ordered mesoporous silica nanofibre with core/sheath structure and its application as catalyst carrier. NANOSCALE 2011; 3:3601-3604. [PMID: 21829810 DOI: 10.1039/c1nr10547g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A core/sheath structured mesoporous silica nanofibre was prepared by coaxial electrospinning combined with the solvent evaporation induced surfactant assembly process. The characterization has given convincing evidence for the continuous highly ordered mesoporous structures, and its catalyst application was tested.
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Affiliation(s)
- Haiyan Wang
- Technical Institute of Physics and Chemistry, CAS, Beijing 100190, P.R. China
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83
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A Better Understanding of the Formation of Silica Nanococoons. CHINESE J CHEM 2011. [DOI: 10.1002/cjoc.201180286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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84
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Usefulness of alkoxyltitanosiloxane for the preparation of mesoporous silica containing a large amount of isolated titanium. J Colloid Interface Sci 2011; 359:240-7. [DOI: 10.1016/j.jcis.2011.03.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 03/01/2011] [Accepted: 03/03/2011] [Indexed: 11/18/2022]
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85
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He Z, Zhu Z, Li J, Zhou J, Wei N. Characterization and activity of mesoporous titanium dioxide beads with high surface areas and controllable pore sizes. JOURNAL OF HAZARDOUS MATERIALS 2011; 190:133-9. [PMID: 21458919 DOI: 10.1016/j.jhazmat.2011.03.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2011] [Revised: 03/03/2011] [Accepted: 03/04/2011] [Indexed: 05/10/2023]
Abstract
Mesoporous titanium dioxide beads with high surface areas (over 90 m(2)/g) and tunable pore sizes (from 12.8 to 16.5 nm) were synthesized via a solvothermal process heating by microwave irradiation, with ammonia being used as both a source of nitrogen and a control agent for the mesoporous structure. Structural characterization indicated that the mesoporous TiO(2) beads were composed of nanocrystals and pores and the beads possess a optical band gap energy of 3.11 eV. The doping nitrogen was in the form of NH(x) or NO(x) species and was adsorbed on surface of the beads, which caused changes to the surface electronic structure. The results show that the samples which possess higher-order structure, large surface area and well-defined crystallinity have the best performance in photocatalytic activities exhibited as evaluated in the degradation of methylene blue.
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Affiliation(s)
- Zuoli He
- School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China.
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86
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Zhu K, Sun J, Liu J, Wang L, Wan H, Hu J, Wang Y, Peden CHF, Nie Z. Solvent Evaporation Assisted Preparation of Oriented Nanocrystalline Mesoporous MFI Zeolites. ACS Catal 2011. [DOI: 10.1021/cs200085e] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Kake Zhu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Junming Sun
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jun Liu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Liqiong Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Haiying Wan
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Jianzhi Hu
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Yong Wang
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Charles H. F. Peden
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Zimin Nie
- Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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87
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Che H, Han S, Hou W, Liu A, Sun Y, Wang S, Cui X. Thermally Stable Nanoporous Nanocrystalline TiO2with a Bicrystalline (Anatase-Brookite) Framework Fabricated via Combining the Soft-Templating with Solid-Liquid Method. J DISPER SCI TECHNOL 2011. [DOI: 10.1080/01932691003800494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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88
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Luo L, Kong F, Chu S, Liu Y, Zhu H, Wang Y, Zou Z. Hemoglobin immobilized within mesoporous TiO2–SiO2 material with high loading and enhanced catalytic activity. NEW J CHEM 2011. [DOI: 10.1039/c1nj20711c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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89
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Di J, Zhao Y, Yu J. Fabrication of molecular sieve fibers by electrospinning. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10512d] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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90
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Ismail AA, Bahnemann DW. Mesoporous titania photocatalysts: preparation, characterization and reaction mechanisms. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10407a] [Citation(s) in RCA: 373] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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91
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Ismail AA, Bahnemann DW, Rathousky J, Yarovyi V, Wark M. Multilayered ordered mesoporous platinum/titania composite films: does the photocatalytic activity benefit from the film thickness? ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10366k] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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92
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Cauda V, Szeifert JM, Merk K, Fattakhova-Rohlfing D, Bein T. All-inorganic core–shell silica–titania mesoporous colloidal nanoparticles showing orthogonal functionality. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm04528d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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93
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Zhang S, Jiang D, Tang T, Li J, Xu Y, Shen W, Xu J, Deng F. TiO2/SBA-15 photocatalysts synthesized through the surface acidolysis of Ti(OnBu)4 on carboxyl-modified SBA-15. Catal Today 2010. [DOI: 10.1016/j.cattod.2010.04.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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94
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95
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Zhang R, Tu B, Zhao D. Synthesis of Highly Stable and Crystalline Mesoporous Anatase by Using a Simple Surfactant Sulfuric Acid Carbonization Method. Chemistry 2010; 16:9977-81. [DOI: 10.1002/chem.201001241] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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96
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N, B, Si-tridoped mesoporous TiO2 with high surface area and excellent visible-light photocatalytic activity. RESEARCH ON CHEMICAL INTERMEDIATES 2010. [DOI: 10.1007/s11164-010-0145-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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97
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Ding K, Miao Z, Hu B, An G, Sun Z, Han B, Liu Z. Study on the anatase to rutile phase transformation and controlled synthesis of rutile nanocrystals with the assistance of ionic liquid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:10294-10302. [PMID: 20426393 DOI: 10.1021/la100468e] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We developed a route to synthesize rutile TiO(2) nanocrystals (NCs) with the assistance of 1-butyl-3-methylimidazolium chloride (bmim(+)Cl(-)). The phase transformation from anatase to rutile phase was investigated, and a simple model to describe the phase transformation process was proposed considering that the nucleation and growth of rutile phase were determined by the aggregation manner of anatase NCs and Ostwald ripening process, respectively. It was demonstrated that the surfactant-like nature of the IL used was crucial for controlling the crystallization process via controlling the aggregation manner of the NCs. The phase, shape, and size of TiO(2) NCs could be tuned by the controlling the operating conditions, such as temperature, solution acidity, and reactant concentration of the bmim(+)Cl(-)/TiCl(4)/H(2)O reaction system. Phase-pure rutile multipods and 1D nanorods with different sizes were controllably obtained.
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Affiliation(s)
- Kunlun Ding
- Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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98
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Highly ordered Ti-SBA-15: Efficient H2 adsorbent and photocatalyst for eco-toxic dye degradation. J SOLID STATE CHEM 2010. [DOI: 10.1016/j.jssc.2010.04.015] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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99
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Xie M, Jing L, Zhou J, Lin J, Fu H. Synthesis of nanocrystalline anatase TiO2 by one-pot two-phase separated hydrolysis-solvothermal processes and its high activity for photocatalytic degradation of rhodamine B. JOURNAL OF HAZARDOUS MATERIALS 2010; 176:139-145. [PMID: 20042283 DOI: 10.1016/j.jhazmat.2009.11.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Revised: 10/06/2009] [Accepted: 11/02/2009] [Indexed: 05/28/2023]
Abstract
Si-doped and un-doped nanocrystalline TiO(2) samples have been synthesized by simple one-pot water-organic two-phase separated hydrolysis-solvothermal (HST) processes, and characterized by XRD, BET, TEM, FT-IR, DRS and surface photovoltage techniques. The effects of the solvothermal temperature and Si doping on the anatase thermal stability, and on the photocatalytic activity for degrading rhodamine B were investigated in detail. The results show that, as the solvothermal temperature rises, the crystallinity and thermal stability of the resulting nano-sized anatase TiO(2) gradually increase. Noticeably, the as-prepared TiO(2) obtained at appropriate solvothermal temperature (160 degrees C) exhibits high photocatalytic activity. Moreover, although Si doping does not improve the photocatalytic activity of the as-prepared anatase TiO(2), it greatly enhances the anatase thermal stability and inhibits crystallite growth during the process of post-thermal treatment. Interestingly, the Si-doped TiO(2) post-treated at high temperature displays much higher photocatalytic activity than commercial P25 TiO(2). It is clearly demonstrated that the joint effects of high anatase crystallinity and large surface area lead to high photocatalytic activity. This work provides a simple and effective strategy for the synthesis of high-performance TiO(2)-based functional nanomaterials.
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Affiliation(s)
- Mingzheng Xie
- Key Laboratory of Functional Inorganic Materials Chemistry (Heilongjiang University), Ministry of Education, School of Chemistry and Materials Science, Harbin 150080, PR China
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100
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He C, Tian B, Zhang J. Thermally stable SiO2-doped mesoporous anatase TiO2 with large surface area and excellent photocatalytic activity. J Colloid Interface Sci 2010; 344:382-9. [DOI: 10.1016/j.jcis.2010.01.002] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Revised: 12/30/2009] [Accepted: 01/06/2010] [Indexed: 11/28/2022]
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