251
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Nagamine S, Inoue H, Ohshima M. Development of a Photocatalytic Microreactor with Separated Oxidation/Reduction Channels. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2017. [DOI: 10.1252/jcej.16we228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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252
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Yang C, Dong W, Cui G, Zhao Y, Shi X, Xia X, Tang B, Wang W. Highly efficient photocatalytic degradation of methylene blue by P2ABSA-modified TiO2 nanocomposite due to the photosensitization synergetic effect of TiO2 and P2ABSA. RSC Adv 2017. [DOI: 10.1039/c7ra02423a] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A photocatalytic activity enhanced mechanism accounting for the photosensitization synergetic effect is proposed, with MB degradation pathways including chromophoric and auxochrome group degradation.
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Affiliation(s)
- Chuanxi Yang
- College of Geography and Environment
- Shandong Normal University
- Jinan 250014
- P. R. China
- College of Resources and Environmental Sciences
| | - Wenping Dong
- Shandong Academy of Environmental Science and Environmental Engineering Co, Ltd
- Jinan 250013
- P. R. China
| | - Guanwei Cui
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Yingqiang Zhao
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Xifeng Shi
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Xinyuan Xia
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Bo Tang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Weiliang Wang
- College of Geography and Environment
- Shandong Normal University
- Jinan 250014
- P. R. China
- Institute of Environment and Ecology
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253
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Islam Molla MA, Tateishi I, Furukawa M, Katsumata H, Suzuki T, Kaneco S. Evaluation of Reaction Mechanism for Photocatalytic Degradation of Dye with Self-Sensitized TiO<sub>2</sub> under Visible Light Irradiation. ACTA ACUST UNITED AC 2017. [DOI: 10.4236/ojinm.2017.71001] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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254
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Das R, Vecitis CD, Schulze A, Cao B, Ismail AF, Lu X, Chen J, Ramakrishna S. Recent advances in nanomaterials for water protection and monitoring. Chem Soc Rev 2017; 46:6946-7020. [DOI: 10.1039/c6cs00921b] [Citation(s) in RCA: 353] [Impact Index Per Article: 50.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanomaterials (NMs) for adsorption, catalysis, separation, and disinfection are scrutinized. NMs-based sensor technologies and environmental transformations of NMs are highlighted.
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Affiliation(s)
- Rasel Das
- Leibniz Institute of Surface Modification
- D-04318 Leipzig
- Germany
| | - Chad D. Vecitis
- School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Agnes Schulze
- Leibniz Institute of Surface Modification
- D-04318 Leipzig
- Germany
| | - Bin Cao
- School of Civil and Environmental Engineering
- Nanyang Technological University
- Singapore
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre
- Universiti Teknologi Malaysia
- 81310 Johor
- Malaysia
| | - Xianbo Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Dalian 116023
- China
| | - Jiping Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry
- Dalian Institute of Chemical Physics
- Dalian 116023
- China
| | - Seeram Ramakrishna
- Centre for Nanofibers and Nanotechnology
- Department of Mechanical Engineering
- National University of Singapore
- Singapore
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255
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Lim J, Bokare AD, Choi W. Visible light sensitization of TiO2 nanoparticles by a dietary pigment, curcumin, for environmental photochemical transformations. RSC Adv 2017. [DOI: 10.1039/c7ra05276f] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The use of curcumin, an active ingredient of turmeric powder (a dye component in curry), as a TiO2 photo-sensitizer was investigated in terms of the photochemical and photoelectrochemical (PEC) properties.
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Affiliation(s)
- Jonghun Lim
- Division of Environmental Science and Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang 37673
- Korea
| | - Alok D. Bokare
- Division of Environmental Science and Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang 37673
- Korea
| | - Wonyong Choi
- Division of Environmental Science and Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang 37673
- Korea
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256
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Effect of gadollunium doping on visible light photocatalytic performance of Ag3PO4: Evaluation of activity in degradation of an anthraquinone dye and mechanism study. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.molcata.2016.11.026] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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257
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Góngora JF, Elizondo P, Hernández-Ramírez A. Photocatalytic degradation of ibuprofen using TiO2 sensitized by Ru(ii) polyaza complexes. Photochem Photobiol Sci 2017; 16:31-37. [DOI: 10.1039/c6pp00222f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Ru(ii) complexes acting as sensitizers for TiO2 increase the degradation rate of ibuprofen in the photocatalytic process activated by visible light.
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Affiliation(s)
- J. F. Góngora
- Universidad Autonoma de Nuevo Leon
- Facultad de Ciencias Químicas
- San Nicolás de los Garza
- Mexico
| | - P. Elizondo
- Universidad Autonoma de Nuevo Leon
- Facultad de Ciencias Químicas
- San Nicolás de los Garza
- Mexico
| | - A. Hernández-Ramírez
- Universidad Autonoma de Nuevo Leon
- Facultad de Ciencias Químicas
- San Nicolás de los Garza
- Mexico
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258
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Ag-loaded mesoporous Pb3Nb2O8 photocatalysts with enhanced activity under visible-light irradiation. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(16)62575-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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259
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First Principles Study on the Interaction Mechanisms of Water Molecules on TiO₂ Nanotubes. MATERIALS 2016; 9:ma9121018. [PMID: 28774138 PMCID: PMC5456952 DOI: 10.3390/ma9121018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 12/01/2016] [Accepted: 12/08/2016] [Indexed: 11/17/2022]
Abstract
The adsorption properties of water molecules on TiO₂ nanotubes (TiO₂NT) and the interaction mechanisms between water molecules are studied by first principles calculations. The adsorption preferences of water molecules in molecular or dissociated states on clean and H-terminated TiO₂NT are evaluated. Adsorption of OH clusters on (0, 6) and (9, 0) TiO₂ nanotubes are first studied. The smallest adsorption energies are -1.163 eV and -1.383 eV, respectively, by examining five different adsorption sites on each type of tube. Eight and six adsorption sites were considered for OH adsorbtion on the H terminated (0, 6) and (9, 0) nanotubes. Water molecules are reformed with the smallest adsorption energy of -4.796 eV on the former and of -5.013 eV on the latter nanotube, respectively. For the adsorption of a single water molecule on TiO₂NT, the molecular state shows the strongest adsorption preference with an adsorption energy of -0.660 eV. The adsorption of multiple (two and three) water molecules on TiO₂NT is also studied. The calculated results show that the interactions between water molecules greatly affect their adsorption properties. Competition occurs between the molecular and dissociated states. The electronic structures are calculated to clarify the interaction mechanisms between water molecules and TiO₂NT. The bonding interactions between H from water and oxygen from TiO₂NT may be the reason for the dissociation of water on TiO₂NT.
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260
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Grabowska E, Marchelek M, Klimczuk T, Lisowski W, Zaleska-Medynska A. Preparation, characterization and photocatalytic activity of TiO 2 microspheres decorated by bimetallic nanoparticles. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.09.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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261
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Li X, Yu J, Wageh S, Al-Ghamdi AA, Xie J. Graphene in Photocatalysis: A Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:6640-6696. [PMID: 27805773 DOI: 10.1002/smll.201600382] [Citation(s) in RCA: 327] [Impact Index Per Article: 40.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 08/09/2016] [Indexed: 05/22/2023]
Abstract
In recent years, heterogeneous photocatalysis has received much research interest because of its powerful potential applications in tackling many important energy and environmental challenges at a global level in an economically sustainable manner. Due to their unique optical, electrical, and physicochemical properties, various 2D graphene nanosheets-supported semiconductor composite photocatalysts have been widely constructed and applied in different photocatalytic fields. In this review, fundamental mechanisms of heterogeneous photocatalysis, including thermodynamic and kinetics requirements, are first systematically summarized. Then, the photocatalysis-related properties of graphene and its derivatives, and design rules and synthesis methods of graphene-based composites are highlighted. Importantly, different design strategies, including doping and sensitization of semiconductors by graphene, improving electrical conductivity of graphene, increasing eloectrocatalytic active sites on graphene, strengthening interface coupling between semiconductors and graphene, fabricating micro/nano architectures, constructing multi-junction nanocomposites, enhancing photostability of semiconductors, and utilizing the synergistic effect of various modification strategies, are thoroughly summarized. The important applications including photocatalytic pollutant degradation, H2 production, and CO2 reduction are also addressed. Through reviewing the significant advances on this topic, it may provide new opportunities for designing highly efficient 2D graphene-based photocatalysts for various applications in photocatalysis and other fields, such as solar cells, thermal catalysis, separation, and purification.
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Affiliation(s)
- Xin Li
- College of Materials and Energy, South China Agricultural University, Guangzhou, 510642, P. R. China
- Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, Institute of New Energy and New Materials, South China Agricultural University, Guangzhou, 510642, P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - S Wageh
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Ahmed A Al-Ghamdi
- Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Jun Xie
- Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, Institute of New Energy and New Materials, South China Agricultural University, Guangzhou, 510642, P. R. China
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262
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László B, Baán K, Varga E, Oszkó A, Erdőhelyi A, Kónya Z, Kiss J. Photo-induced reactions in the CO 2 -methane system on titanate nanotubes modified with Au and Rh nanoparticles. APPLIED CATALYSIS B-ENVIRONMENTAL 2016. [DOI: 10.1016/j.apcatb.2016.06.057] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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263
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Kim H, Kim HN, Weon S, Moon GH, Kim JH, Choi W. Robust Co-catalytic Performance of Nanodiamonds Loaded on WO3 for the Decomposition of Volatile Organic Compounds under Visible Light. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02726] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hyoung−il Kim
- Division
of Environmental Science and Engineering/Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Hee-na Kim
- Division
of Environmental Science and Engineering/Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Seunghyun Weon
- Division
of Environmental Science and Engineering/Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Gun-hee Moon
- Division
of Environmental Science and Engineering/Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
| | - Jae-Hong Kim
- Department
of Chemical and Environmental Engineering, School of Engineering and
Applied Science, Yale University, New Haven, Connecticut 06511, United States
| | - Wonyong Choi
- Division
of Environmental Science and Engineering/Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
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264
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The study on preparation and the effect of adsorption over photocatalytic activities of Cu2O/titanate nanotubes (Cu2O/TNTs). POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.07.049] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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265
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Jo WK, Natarajan TS. Fabrication and efficient visible light photocatalytic properties of novel zinc indium sulfide (ZnIn 2 S 4 ) – graphitic carbon nitride (g-C 3 N 4 )/bismuth vanadate (BiVO 4 ) nanorod-based ternary nanocomposites with enhanced charge separation via Z-scheme transfer. J Colloid Interface Sci 2016; 482:58-72. [DOI: 10.1016/j.jcis.2016.07.062] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 07/20/2016] [Accepted: 07/25/2016] [Indexed: 01/24/2023]
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266
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Wongaree M, Chiarakorn S, Chuangchote S, Sagawa T. Photocatalytic performance of electrospun CNT/TiO 2 nanofibers in a simulated air purifier under visible light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:21395-21406. [PMID: 27502566 DOI: 10.1007/s11356-016-7348-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 07/29/2016] [Indexed: 06/06/2023]
Abstract
The photocatalytic treatment of gaseous benzene under visible light irradiation was developed using electrospun carbon nanotube/titanium dioxide (CNT/TiO2) nanofibers as visible light active photocatalysts. The CNT/TiO2 nanofibers were fabricated by electrospinning CNT/poly(vinyl pyrrolidone) (PVP) solution followed by the removal of PVP by calcination at 450 °C. The molar ratio of CNT/TiO2 was fixed at 0.05:1 by weight, and the quantity of CNT/TiO2 loaded in PVP solution varied between 30 and 60 % wt. CNT/TiO2 nanofibers have high specific surface area (116 m2/g), significantly higher than that of TiO2 nanofibers (44 m2/g). The photocatalytic performance of the CNT/TiO2 nanofibers was investigated by decolorization of 1 × 10-5 M methylene blue (MB) dye (in water solution) and degradation of 100 ppm gaseous benzene under visible light irradiation. The 50-CNT/TiO2 nanofibers (calcined CNT/TiO2 nanofibers fabricated from a spinning solution of 50 % wt CNT/TiO2 based on PVP) had higher MB degradation efficiency (58 %) than did other CNT/TiO2 nanofibers and pristine TiO2 nanofibers (15 %) under visible light irradiation. The photocatalytic degradation of gaseous benzene under visible light irradiation on filters made of 50-CNT/TiO2 nanofibers was carried out in a simulated air purifier system. Similar to MB results, the degradation efficiency of gaseous benzene by 50-CNT/TiO2 nanofibers (52 %) was higher than by other CNT/TiO2 nanofibers and pristine TiO2 nanofibers (18 %). The synergistic effects of the larger surface area and lower band gap energy of CNT/TiO2 nanofibers were presented as strong adsorption ability and greater visible light adsorption. The CNT/TiO2 nanofiber prepared in this study has potential for use in air purifiers to improve air treatment efficiency with less energy.
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Affiliation(s)
- Mathana Wongaree
- The Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi, 126 Prachauthit Rd., Bangmod, Thungkru, Bangkok, 10140, Thailand
- Centre of Excellence on Energy Technology and Environment, Science and Technology Postgraduate Education and Research Development Office, Bangkok, Thailand
| | - Siriluk Chiarakorn
- Division of Environmental Technology, School of Energy, Environment and Materials, King Mongkut's University of Technology Thonburi, 126 Prachauthit Rd., Bangmod, Thungkru, Bangkok, 10140, Thailand.
- Nanotec-KMUTT Center of Excellence on Hybrid Nanomaterials for Alternative Energy, King Mongkut's University of Technology Thonburi, 126 Prachauthit Rd., Bangmod, Thungkru, Bangkok, 10140, Thailand.
| | - Surawut Chuangchote
- The Joint Graduate School of Energy and Environment, King Mongkut's University of Technology Thonburi, 126 Prachauthit Rd., Bangmod, Thungkru, Bangkok, 10140, Thailand
- Centre of Excellence on Energy Technology and Environment, Science and Technology Postgraduate Education and Research Development Office, Bangkok, Thailand
| | - Takashi Sagawa
- Department of Fundamental Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto, 606-8501, Japan
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267
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Kim SE, Woo JY, Kang SY, Min BK, Lee JK, Lee SW. A facile general route for ternary Fe 2 O 3 @TiO 2 @nanometal (Au, Ag) composite as a high-performance and recyclable photocatalyst. J IND ENG CHEM 2016. [DOI: 10.1016/j.jiec.2016.07.060] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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268
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Anderson AL, Binions R. A preferential precursor for photocatalytically active titanium dioxide thin films: Titanium bis-ammonium lactato dihydroxide as an alternative to titanium tetra iso-propoxide. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.07.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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269
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TiO2 Nanotubes Supported Cu Nanoparticles for Improving Photocatalytic Degradation of Simazine under UV Illumination. Catalysts 2016. [DOI: 10.3390/catal6110167] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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270
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Kim HI, Weon S, Kang H, Hagstrom AL, Kwon OS, Lee YS, Choi W, Kim JH. Plasmon-Enhanced Sub-Bandgap Photocatalysis via Triplet-Triplet Annihilation Upconversion for Volatile Organic Compound Degradation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:11184-11192. [PMID: 27684445 DOI: 10.1021/acs.est.6b02729] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study demonstrates the first reported photocatalytic decomposition of an indoor air pollutant, acetaldehyde, using low-energy, sub-bandgap photons harnessed through sensitized triplet-triplet annihilation (TTA) upconversion (UC). To utilize low-intensity noncoherent indoor light and maximize photocatalytic activity, we designed a plasmon-enhanced sub-bandgap photocatalyst device consisting of two main components: (1) TTA-UC rubbery polymer films containing broad-band plasmonic particles (Ag-SiO2) to upconvert sub-bandgap photons, and (2) nanodiamond (ND)-loaded WO3 as a visible-light photocatalyst composite. Effective decomposition of acetaldehyde was achieved using ND/WO3 (Eg = 2.8 eV) coupled with TTA-UC polymer films that emit blue photons (λEm = 425 nm, 2.92 eV) upconverted from green photons (λEx = 532 nm, 2.33 eV), which are wasted in most environmental photocatalysis. The overall photocatalytic efficiency was amplified by the broad-band surface plasmon resonance of AgNP-SiO2 particles incorporated into the TTA-UC films.
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Affiliation(s)
- Hyoung-Il Kim
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Science, Yale University , New Haven, Connecticut 06511, United States
| | - Seunghyun Weon
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Republic of Korea
| | - Homan Kang
- Interdisciplinary Program in Nano-Science and Technology, Seoul National University , Seoul 08826, Republic of Korea
| | - Anna L Hagstrom
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Science, Yale University , New Haven, Connecticut 06511, United States
| | - Oh Seok Kwon
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Science, Yale University , New Haven, Connecticut 06511, United States
| | - Yoon-Sik Lee
- Interdisciplinary Program in Nano-Science and Technology, Seoul National University , Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Seoul National University , Seoul 08826, Republic of Korea
| | - Wonyong Choi
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Republic of Korea
| | - Jae-Hong Kim
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Science, Yale University , New Haven, Connecticut 06511, United States
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271
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Kim G, Choi HJ, Kim HI, Kim J, Monllor-Satoca D, Kim M, Park H. Temperature-boosted photocatalytic H 2 production and charge transfer kinetics on TiO 2 under UV and visible light. Photochem Photobiol Sci 2016; 15:1247-1253. [PMID: 27714276 DOI: 10.1039/c6pp00263c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study investigates the effect of reaction temperature (298-353 K) on photocatalytic H2 production in bare and platinized TiO2 (Pt/TiO2) suspensions containing various organic hole scavengers (EDTA, methanol, and formic acid) under UV (λ > 320 nm) and visible light (λ > 420 nm for ligand-to-metal charge transfer). H2 production rates are enhanced ∼7.8- and ∼2.5-fold in TiO2 and Pt/TiO2 suspensions, respectively, with EDTA under UV by simply elevating the reaction temperature from 298 K to 323 K (ΔT = 25 °C). Such a temperature-boosted increase in H2 production is always observed, regardless of the TiO2 crystalline structure (anatase, rutile, and an anatase/rutile mixture), type of hole scavenger, and irradiation wavelength range. It is estimated that approximately 90% of incident photons are utilized in H2 production, for which the activation energy is 25.5 kJ mol-1. Detailed photoelectrochemical analyses show the positive relationship between reaction temperature and photocurrent generation, with charge carrier mobility and interfacial charge transfer improving at higher temperatures. Other possible factors, such as H2 solubility and mass transport, play a limited role.
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Affiliation(s)
- Gonu Kim
- Department of Chemistry and Biology, Korea Science Academy of KAIST, Busan 47162, Korea
| | - Hee Joon Choi
- Taejon Christian International School, Daejeon 34035, Korea
| | - Hyoung-Il Kim
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, USA
| | - Jaehong Kim
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06511, USA
| | - Damián Monllor-Satoca
- Department of Analytical and Applied Chemistry, Institut Químic de Sarrià (IQS) - School of Engineering, Universitat Ramon Llull, Barcelona 08017, Spain
| | - Minju Kim
- School of Energy Engineering, Kyungpook National University, Daegu 41566, Korea. and School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Korea
| | - Hyunwoong Park
- School of Energy Engineering, Kyungpook National University, Daegu 41566, Korea. and School of Architectural, Civil, Environmental, and Energy Engineering, Kyungpook National University, Daegu 41566, Korea
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272
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Kukovecz Á, Kordás K, Kiss J, Kónya Z. Atomic scale characterization and surface chemistry of metal modified titanate nanotubes and nanowires. SURFACE SCIENCE REPORTS 2016. [DOI: 10.1016/j.surfrep.2016.06.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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273
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Nthumbi RM, Ngila JC. Electrospun and functionalized PVDF/PAN nanocatalyst-loaded composite for dechlorination and photodegradation of pesticides in contaminated water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:20214-20231. [PMID: 27443857 DOI: 10.1007/s11356-016-7136-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 06/20/2016] [Indexed: 06/06/2023]
Abstract
A novel approach for the electrospinning and functionalization of nanocatalyst-loaded polyvinylidene fluoride/polyacrylonitrile (PVDF/PAN) composite grafted with acrylic acid (AA; which form polyacrylic acid (PAA) brush) and decorated with silver (Ag/PAN/PVDF-g-PAA-TiO2/Fe-Pd) designed for the dechlorination and photodegradation of pesticides was carried out. PAN was used both as a nitrogen dopant as well as a co-polymer. Smooth nanofibers were obtained by electrospinning a solution of 12:2 wt.% PVDF/PAN blend using dimethylformamide (DMF) as solvent. The nanofibers were grafted with AA by free-radical polymerization using 2,2'azobis(2-methylpropionitrile) (AIBN) as initiator. Both bimetallic iron-palladium (Fe-Pd) and titania (TiO2) nanoparticles (NP) were anchored on the grafted nanofibers via the carboxylate groups by in situ and ex situ synthesis. The Fe-Pd and nitrogen-doped TiO2 nanoparticles were subsequently used for dechlorination and oxidation of target pollutants (dieldrin, chlorpyrifos, diuron, and fipronil) to benign products. Structural and chemical characterizations of the composites were done using various techniques. These include surface area and porosity analyzer (ASAP) using the technique by Brunner Emmett Teller (BET), Fourier transform infrared (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscope (TEM) analyses were done. After dechlorination, the transformation products (TPs) for dieldrin, chlorpyrifos, diuron, and fipronil were obtained and identified using two-dimensional gas chromatography (time-of-flight) with a mass spectrometer detector (GCxGC-TOFMS). Analysis of total organic carbon (TOC) was carried out and used to extrapolate percentage mineralization. Experimental results showed that dechlorination efficiencies of 96, 93, 96, and 90 % for 1, 2, 2, and 3 h treatment period were respectively achieved for 5 ppm solutions of dieldrin, chlorpyrifos, diuron, and fipronil. The dechlorination of dieldrin, diuron, and fipronil follows first-order kinetics while that of chlorpyrifos followed pseudo-first order. Mineralization performance of 34 to 45 % were recorded when Fe-Pd was used, however upon electrospinning, doping, and grafting (Ag/PAN/PVDF-g-PAA-TiO2/Fe-Pd composite); it significantly increased to 99.9999 %. This composite reveals great potential for dechlorination and mineralization of pesticides in contaminated water.
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Affiliation(s)
- Richard M Nthumbi
- Department of Applied Chemistry, University of Johannesburg, P. O Box 17011, Doornfontein, Johannesburg, 2028, South Africa
| | - Jane C Ngila
- Department of Applied Chemistry, University of Johannesburg, P. O Box 17011, Doornfontein, Johannesburg, 2028, South Africa.
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274
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Sun P, Xue R, Zhang W, Zada I, Liu Q, Gu J, Su H, Zhang Z, Zhang J, Zhang D. Photocatalyst of organic pollutants decomposition: TiO 2 /glass fiber cloth composites. Catal Today 2016. [DOI: 10.1016/j.cattod.2016.04.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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275
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Chen F, Yang Q, Zhong Y, An H, Zhao J, Xie T, Xu Q, Li X, Wang D, Zeng G. Photo-reduction of bromate in drinking water by metallic Ag and reduced graphene oxide (RGO) jointly modified BiVO4 under visible light irradiation. WATER RESEARCH 2016; 101:555-563. [PMID: 27311108 DOI: 10.1016/j.watres.2016.06.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 05/29/2016] [Accepted: 06/03/2016] [Indexed: 05/25/2023]
Abstract
Bromate (BrO3(-)), an oxyhalide disinfection by-product (DBP) in drinking water, has been demonstrated to be carcinogenic and genotoxic. In the current work, metallic Ag and reduced graphene oxide (RGO) co-modified BiVO4 was successfully synthesized by a stepwise chemical method coupling with a photo-deposition process and applied in the photo-reduction of BrO3(-) under visible light irradiation. In this composite, metallic Ag acted as an electron donor or mediator and RGO enhanced the BrO3(-) adsorption onto the surface of catalysts as well as an electron acceptor to restrict the recombination of photo-generated electron-hole pairs. The Ag@BiVO4@RGO composite exhibited greater photo-reduction BrO3(-) performance than pure BiVO4, Ag@BiVO4 and RGO@BiVO4 under identical experimental conditions: initial BrO3(-) concentration 150 μg/L, catalyst dosage 0.5 g/L, pH 7.0 and visible light (λ > 420 nm). The photoluminescence spectra (PL), electron-spin resonance (ESR), photocurrent density (PC) and electrochemical impedance spectroscopy (EIS) measurements indicated that the modified BiVO4 enhanced the photo-generated electrons and separated the electron-hole pairs. The photocatalytic reduction efficiency for BrO3(-) removal decreased with the addition of electron quencher K2S2O8, suggesting that electrons were the primary factor in this photo-reduction process. The declining photo-reduction efficiency of BrO3(-) in tap water should attribute to the consumption of photo-generated electrons by coexisting anions and the adsorption of dissolved organic matter (DOM) on graphene surface. The overall results indicate a promising application potential for photo-reduction in the DBPs removal from drinking water.
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Affiliation(s)
- Fei Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China.
| | - Qi Yang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China.
| | - Yu Zhong
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China
| | - Hongxue An
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China
| | - Jianwei Zhao
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China
| | - Ting Xie
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China
| | - Qiuxiang Xu
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China
| | - Xiaoming Li
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China
| | - Dongbo Wang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, 410082, PR China
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276
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Wang R, Pan K, Han D, Jiang J, Xiang C, Huang Z, Zhang L, Xiang X. Solar-Driven H2 O2 Generation From H2 O and O2 Using Earth-Abundant Mixed-Metal Oxide@Carbon Nitride Photocatalysts. CHEMSUSCHEM 2016; 9:2470-2479. [PMID: 27484581 DOI: 10.1002/cssc.201600705] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Indexed: 06/06/2023]
Abstract
Light-driven generation of H2 O2 only from water and molecular oxygen could be an ideal pathway for clean production of solar fuels. In this work, a mixed metal oxide/graphitic-C3 N4 (MMO@C3 N4 ) composite was synthesized as a dual-functional photocatalyst for both water oxidation and oxygen reduction to generate H2 O2 . The MMO was derived from a NiFe-layered double hydroxide (LDH) precursor for obtaining a high dispersion of metal oxides on the surface of the C3 N4 matrix. The C3 N4 is in the graphitic phase and the main crystalline phase in MMO is cubic NiO. The XPS analyses revealed the doping of Fe(3+) in the dominant NiO phase and the existence of surface defects in the C3 N4 matrix. The formation and decomposition kinetics of H2 O2 on the MMO@C3 N4 and the control samples, including bare MMO, C3 N4 matrix, Ni- or Fe-loaded C3 N4 and a simple mixture of MMO and C3 N4 , were investigated. The MMO@C3 N4 composite produced 63 μmol L(-1) of H2 O2 in 90 min in acidic solution (pH 3) and exhibited a significantly higher rate of production for H2 O2 relative to the control samples. The positive shift of the valence band in the composite and the enhanced water oxidation catalysis by incorporating the MMO improved the light-induced hole collection relative to the bare C3 N4 and resulted in the enhanced H2 O2 formation. The positively shifted conduction band in the composite also improved the selectivity of the two-electron reduction of molecular oxygen to H2 O2 .
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Affiliation(s)
- Ruirui Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan Dong Lu, Beijing, 100029, P.R. China
| | - Kecheng Pan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan Dong Lu, Beijing, 100029, P.R. China
| | - Dandan Han
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan Dong Lu, Beijing, 100029, P.R. China
| | - Jingjing Jiang
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California, 91125, USA
| | - Chengxiang Xiang
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California, 91125, USA
| | - Zhuangqun Huang
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California, 91125, USA
- AFM Business Unit, Bruker Nano Surfaces, Santa Barbara, California, 93117, USA
| | - Lu Zhang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan Dong Lu, Beijing, 100029, P.R. China
- Joint Center for Artificial Photosynthesis, California Institute of Technology, Pasadena, California, 91125, USA
| | - Xu Xiang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, 15 Beisanhuan Dong Lu, Beijing, 100029, P.R. China.
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277
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Pan W, Huang Y, Cui S, Chen W, Mi L. Fabrication of CuS@Ni3S4- polyacrylonitrile textile fabric with enhanced reusability for the treatment of dyes wastewater. ChemistrySelect 2016. [DOI: 10.1002/slct.201600540] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wei Pan
- Center For Advanced Materials Research; Zhongyuan University Of Technology; Henan 450007 P. R. China
| | - Yuanhui Huang
- Center For Advanced Materials Research; Zhongyuan University Of Technology; Henan 450007 P. R. China
| | - Shizhong Cui
- Center For Advanced Materials Research; Zhongyuan University Of Technology; Henan 450007 P. R. China
| | - Weihua Chen
- College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou 450001 P. R. China
| | - Liwei Mi
- Center For Advanced Materials Research; Zhongyuan University Of Technology; Henan 450007 P. R. China
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278
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Lee JY, Jo WK. Heterojunction-based two-dimensional N-doped TiO(2)/WO(3) composite architectures for photocatalytic treatment of hazardous organic vapor. JOURNAL OF HAZARDOUS MATERIALS 2016; 314:22-31. [PMID: 27107232 DOI: 10.1016/j.jhazmat.2016.04.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 04/04/2016] [Accepted: 04/07/2016] [Indexed: 06/05/2023]
Abstract
Two-dimensional nanosheet structures of N-doped TiO2/WO3 composites (WO3-N-TNSs) with varying WO3 loadings were synthesized by incorporating WO3 and N sources into sonochemically prepared TiO2 nanosheets (TNSs). These nanostructures were employed as photocatalysts, and their efficacy in the decomposition of hazardous hexane vapor was investigated. The photocatalytic efficiencies of the WO3-N-TNS composites were higher than those of N-doped TNS (N-TNS), which in turn were higher than the corresponding values for un-doped TNS. These variations were ascribed to the different light absorbance efficiencies, adsorption abilities, and charge carrier separations between the samples. An optimal WO3 loading for the performance of WO3-N-TNS was determined. Interestingly, the photocatalytic efficiency for hexane mixed with isopropyl alcohol (IPA) was lower than that for pure hexane, whereas the degradation efficiency for IPA did not vary with the feed method. Also investigated were the hexane conversion into CO2 over a representative WO3-N-TNS sample, the durability of the photocatalyst, and potential byproduct formation. Based on measurements of the hydroxyl radical population, a heterojunction-type mechanism was considered more plausible than a direct Z-scheme-type mechanism for the photocatalytic decomposition of hexane over the WO3-N-TNS photocatalysts.
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Affiliation(s)
- Joon Yeob Lee
- Department of Environmental Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Wan-Kuen Jo
- Department of Environmental Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea.
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279
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Odling G, Robertson N. BiVO4-TiO2Composite Photocatalysts for Dye Degradation Formed Using the SILAR Method. Chemphyschem 2016; 17:2872-80. [DOI: 10.1002/cphc.201600443] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Gylen Odling
- School of Chemistry; University of Edinburgh; Joseph Black Building; David Brewster Road Edinburgh EH9 3FJ Scotland
| | - Neil Robertson
- School of Chemistry; University of Edinburgh; Joseph Black Building; David Brewster Road Edinburgh EH9 3FJ Scotland
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280
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Fang Z, Lee Z, Peterson KA, Dixon DA. Use of Improved Orbitals for CCSD(T) Calculations for Predicting Heats of Formation of Group IV and Group VI Metal Oxide Monomers and Dimers and UCl6. J Chem Theory Comput 2016; 12:3583-92. [DOI: 10.1021/acs.jctc.6b00327] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zongtang Fang
- Department
of Chemistry, The University of Alabama, Shelby Hall, Tuscaloosa, Alabama 35487-0336, United States
| | - Zachary Lee
- Department
of Chemistry, The University of Alabama, Shelby Hall, Tuscaloosa, Alabama 35487-0336, United States
| | - Kirk A. Peterson
- Department
of Chemistry, Washington State University, Pullman, Washington 99164-4630, United States
| | - David A. Dixon
- Department
of Chemistry, The University of Alabama, Shelby Hall, Tuscaloosa, Alabama 35487-0336, United States
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281
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Photocatalytic hydrogen production from degradation of glucose over fluorinated and platinized TiO2 catalysts. J Catal 2016. [DOI: 10.1016/j.jcat.2016.03.032] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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282
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Park H, Ou HH, Kang U, Choi J, Hoffmann MR. Photocatalytic conversion of carbon dioxide to methane on TiO2/CdS in aqueous isopropanol solution. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.09.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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283
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Tang L, Wang J, Zeng G, Liu Y, Deng Y, Zhou Y, Tang J, Wang J, Guo Z. Enhanced photocatalytic degradation of norfloxacin in aqueous Bi2WO6 dispersions containing nonionic surfactant under visible light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2016; 306:295-304. [PMID: 26774984 DOI: 10.1016/j.jhazmat.2015.12.044] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Revised: 12/02/2015] [Accepted: 12/22/2015] [Indexed: 05/15/2023]
Abstract
Photocatalytic degradation is an alternative method to remove pharmaceutical compounds in water, however it is hard to achieve efficient rate because of the poor solubility of pharmaceutical compounds in water. This study investigated the photodegradation of norfloxacin in a nonionic surfactant Triton-X100 (TX100)/Bi2WO6 dispersion under visible light irradiation (400-750nm). It was found that the degradation of poorly soluble NOF can be strongly enhanced with the addition of TX100. TX100 was adsorbed strongly on Bi2WO6 surface and accelerated NOF photodegradation at the critical micelle concentration (CMC=0.25mM). Higher TX100 concentration (>0.25mM) lowered the degradation rate. In the presence of TX100, the degradation rate reached the maximum value when the pH value was 8.06. FTIR analyses demonstrated that the adsorbed NOF on the catalyst was completely degraded after 2h irradiation. According to the intermediates identified by HPLC/MS/MS, three possible degradation pathways were proposed to include addition of hydroxyl radical to quinolone ring, elimination of piperazynilic ring in fluoroquinolone molecules, and replacement of F atoms on the aromatic ring by hydroxyl radicals.
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Affiliation(s)
- Lin Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Jiajia Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Yani Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yaocheng Deng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yaoyu Zhou
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Jing Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Jingjing Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhi Guo
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
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284
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Ming T, de Richter R, Shen S, Caillol S. Fighting global warming by greenhouse gas removal: destroying atmospheric nitrous oxide thanks to synergies between two breakthrough technologies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:6119-38. [PMID: 26805926 DOI: 10.1007/s11356-016-6103-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 01/11/2016] [Indexed: 05/22/2023]
Abstract
Even if humans stop discharging CO2 into the atmosphere, the average global temperature will still increase during this century. A lot of research has been devoted to prevent and reduce the amount of carbon dioxide (CO2) emissions in the atmosphere, in order to mitigate the effects of climate change. Carbon capture and sequestration (CCS) is one of the technologies that might help to limit emissions. In complement, direct CO2 removal from the atmosphere has been proposed after the emissions have occurred. But, the removal of all the excess anthropogenic atmospheric CO2 will not be enough, due to the fact that CO2 outgases from the ocean as its solubility is dependent of its atmospheric partial pressure. Bringing back the Earth average surface temperature to pre-industrial levels would require the removal of all previously emitted CO2. Thus, the atmospheric removal of other greenhouse gases is necessary. This article proposes a combination of disrupting techniques to transform nitrous oxide (N2O), the third most important greenhouse gas (GHG) in terms of current radiative forcing, which is harmful for the ozone layer and possesses quite high global warming potential. Although several scientific publications cite "greenhouse gas removal," to our knowledge, it is the first time innovative solutions are proposed to effectively remove N2O or other GHGs from the atmosphere other than CO2.
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Affiliation(s)
- Tingzhen Ming
- School of Civil Engineering and Architecture, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan, 430070, China
| | - Renaud de Richter
- Institut Charles Gerhardt Montpellier - UMR5253 CNRS-UM2 - ENSCM-UM1 - Ecole Nationale Supérieure de Chimie de Montpellier, 8 rue de l'Ecole Normale, 34296, Montpellier Cedex 5, France.
| | - Sheng Shen
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Sylvain Caillol
- Institut Charles Gerhardt Montpellier - UMR5253 CNRS-UM2 - ENSCM-UM1 - Ecole Nationale Supérieure de Chimie de Montpellier, 8 rue de l'Ecole Normale, 34296, Montpellier Cedex 5, France
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285
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Du H, Liu D, Wu H, Xia W, Zhang X, Chen Z, Liu Y, Liu H. Surface Modification of Nickel Sulfide Nanoparticles: Towards Stable Ultra-Dispersed Nanocatalysts for Residue Hydrocracking. ChemCatChem 2016. [DOI: 10.1002/cctc.201600092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hui Du
- State Key Laboratory of Heavy Oil Processing; China University of Petroleum; Qingdao 266555 P.R. China
- College of Chemical Engineering; Qingdao University; Qingdao 266071 P.R. China
| | - Dong Liu
- State Key Laboratory of Heavy Oil Processing; China University of Petroleum; Qingdao 266555 P.R. China
| | - Hao Wu
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 P.R. China
| | - Wei Xia
- State Key Laboratory of Heavy Oil Processing; China University of Petroleum; Qingdao 266555 P.R. China
| | - Xiaodong Zhang
- College of Chemical Engineering; Qingdao University; Qingdao 266071 P.R. China
| | - Zhaojun Chen
- College of Chemical Engineering; Qingdao University; Qingdao 266071 P.R. China
| | - Yongjiu Liu
- State Key Laboratory of Heavy Oil Processing; China University of Petroleum; Qingdao 266555 P.R. China
| | - Hualong Liu
- College of Chemical Engineering; Qingdao University; Qingdao 266071 P.R. China
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286
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Weon S, Choi W. TiO2 Nanotubes with Open Channels as Deactivation-Resistant Photocatalyst for the Degradation of Volatile Organic Compounds. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:2556-2563. [PMID: 26854616 DOI: 10.1021/acs.est.5b05418] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We synthesized ordered TiO2 nanotubes (TNT) and compared their photocatalytic activity with that of TiO2 nanoparticles (TNP) film during the repeated cycles of photocatalytic degradation of gaseous toluene and acetaldehyde to test the durability of TNT as an air-purifying photocatalyst. The photocatalytic activity of TNT showed only moderate reduction after the five cycles of toluene degradation, whereas TNP underwent rapid deactivation as the photocatalysis cycles were repeated. Dynamic SIMS analysis showed that carbonaceous deposits were formed on the surface of TNP during the photocatalytic degradation of toluene, which implies that the photocatalyst deactivation should be ascribed to the accumulation of recalcitrant degradation intermediates (carbonaceous residues). In more oxidizing atmosphere (100% O2 under which less carbonaceous residues should form), the photocatalytic activity of TNP still decreased with repeating cycles of toluene degradation, whereas TNT showed no sign of deactivation. Because TNT has a highly ordered open channel structure, O2 molecules can be more easily supplied to the active sites with less mass transfer limitation, which subsequently hinders the accumulation of carbonaceous residues on TNT surface. Contrary to the case of toluene degradation, both TNT and TNP did not exhibit any significant deactivation during the photocatalytic degradation of acetaldehyde, because the generation of recalcitrant intermediates from acetaldehyde degradation is insignificant. The structural characteristics of TNT is highly advantageous in preventing the catalyst deactivation during the photocatalytic degradation of aromatic compounds.
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Affiliation(s)
- Seunghyun Weon
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Korea
| | - Wonyong Choi
- School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH) , Pohang 790-784, Korea
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287
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Zaleska-Medynska A, Marchelek M, Diak M, Grabowska E. Noble metal-based bimetallic nanoparticles: the effect of the structure on the optical, catalytic and photocatalytic properties. Adv Colloid Interface Sci 2016; 229:80-107. [PMID: 26805520 DOI: 10.1016/j.cis.2015.12.008] [Citation(s) in RCA: 210] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 12/10/2015] [Accepted: 12/12/2015] [Indexed: 12/12/2022]
Abstract
Nanoparticles composed of two different metal elements show novel electronic, optical, catalytic or photocatalytic properties from monometallic nanoparticles. Bimetallic nanoparticles could show not only the combination of the properties related to the presence of two individual metals, but also new properties due to a synergy between two metals. The structure of bimetallic nanoparticles can be oriented in random alloy, alloy with an intermetallic compound, cluster-in-cluster or core-shell structures and is strictly dependent on the relative strengths of metal-metal bond, surface energies of bulk elements, relative atomic sizes, preparation method and conditions, etc. In this review, selected properties, such as structure, optical, catalytic and photocatalytic of noble metals-based bimetallic nanoparticles, are discussed together with preparation routes. The effects of preparation method conditions as well as metal properties on the final structure of bimetallic nanoparticles (from alloy to core-shell structure) are followed. The role of bimetallic nanoparticles in heterogeneous catalysis and photocatalysis are discussed. Furthermore, structure and optical characteristics of bimetallic nanoparticles are described in relation to the some features of monometallic NPs. Such a complex approach allows to systematize knowledge and to identify the future direction of research.
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288
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Chang DW, Baek JB. Nitrogen-Doped Graphene for Photocatalytic Hydrogen Generation. Chem Asian J 2016; 11:1125-37. [DOI: 10.1002/asia.201501328] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Dong Wook Chang
- Department of Industrial Chemistry; Pukyung National University; 365 Sinseon-ro Busan 608-739 South Korea
| | - Jong-Beom Baek
- School of Energy and Chemical Engineering/Low-Dimensional Carbon Materials Center; Ulsan National University of Science and Technology (UNIST); 100 Banyeon Ulsan 689-798 South Korea
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289
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Romão J, Mul G. Substrate Specificity in Photocatalytic Degradation of Mixtures of Organic Contaminants in Water. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02015] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joana Romão
- Photocatalytic Synthesis
Group, MESA+ Institute for Nanotechnology, Faculty of Science and
Technology, University of Twente, Meander 229, P.O.
Box 217, 7500 AE Enschede, The Netherlands
| | - Guido Mul
- Photocatalytic Synthesis
Group, MESA+ Institute for Nanotechnology, Faculty of Science and
Technology, University of Twente, Meander 229, P.O.
Box 217, 7500 AE Enschede, The Netherlands
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290
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Cho YJ, Moon GH, Kanazawa T, Maeda K, Choi W. Selective dual-purpose photocatalysis for simultaneous H2 evolution and mineralization of organic compounds enabled by a Cr2O3 barrier layer coated on Rh/SrTiO3. Chem Commun (Camb) 2016; 52:9636-9. [DOI: 10.1039/c6cc04260k] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dual-purpose photocatalysis for H2 evolution with the simultaneous degradation of organic pollutants was achieved.
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Affiliation(s)
- Young-Jin Cho
- School of Environmental Science and Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Gun-hee Moon
- School of Environmental Science and Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Tomoki Kanazawa
- Department of Chemistry
- School of Science
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
| | - Kazuhiko Maeda
- Department of Chemistry
- School of Science
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
| | - Wonyong Choi
- School of Environmental Science and Engineering
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
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291
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Singh N, Mondal K, Misra M, Sharma A, Gupta RK. Quantum dot sensitized electrospun mesoporous titanium dioxide hollow nanofibers for photocatalytic applications. RSC Adv 2016. [DOI: 10.1039/c6ra04305d] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
TiO2 hollow nanofibers prepared by coaxial electrospinning were sensitized with CdS QDs by SILAR method and their photocatalytic dye degradation performance was investigated.
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Affiliation(s)
- Narendra Singh
- Department of Chemical Engineering and Center for Nanosciences
- Indian Institute of Technology Kanpur
- Kanpur – 208016
- India
| | - Kunal Mondal
- Department of Chemical Engineering and Center for Nanosciences
- Indian Institute of Technology Kanpur
- Kanpur – 208016
- India
| | - Mrinmoy Misra
- Department of Chemical Engineering and Center for Nanosciences
- Indian Institute of Technology Kanpur
- Kanpur – 208016
- India
| | - Ashutosh Sharma
- Department of Chemical Engineering and Center for Nanosciences
- Indian Institute of Technology Kanpur
- Kanpur – 208016
- India
- Center for Environmental Science and Engineering
| | - Raju Kumar Gupta
- Department of Chemical Engineering and Center for Nanosciences
- Indian Institute of Technology Kanpur
- Kanpur – 208016
- India
- Center for Environmental Science and Engineering
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292
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Liu Y, Zhu J, Liu X, Li H. A convenient approach of MIP/Co–TiO2 nanocomposites with highly enhanced photocatalytic activity and selectivity under visible light irradiation. RSC Adv 2016. [DOI: 10.1039/c6ra10727c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
MIP/Co–TiO2 nanocomposites were synthesized. Their mechanisms of preferable photocatalytic activity and good selectivity for target contaminants were identified and discussed.
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Affiliation(s)
- Yang Liu
- The Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Jielian Zhu
- The Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Xiang Liu
- The Laboratory of Food Colloids and Biotechnology
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Hexing Li
- The Key Laboratory of the Chinese Ministry of Education in Resource Chemistry
- Shanghai Normal University
- Shanghai 200234
- P. R. China
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293
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Abstract
The design, fabrication, performance and applications of hierarchical semiconductor photocatalysts are thoroughly reviewed and apprised.
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Affiliation(s)
- Xin Li
- College of Materials and Energy
- South China Agricultural University
- Guangzhou
- P. R. China
- Key Laboratory of Energy Plants Resource and Utilization
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing
- Wuhan University of Technology
- Wuhan
- P. R. China
- Department of Physics
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry
- Kent State University
- Kent
- USA
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294
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Hwang SH, Kim YK, Yoon SH, Lim SK, Park H. ZnO rods rooted on manifold carbon nanofiber paper as a scalable photocatalyst platform: the effects of ZnO morphology. RSC Adv 2016. [DOI: 10.1039/c6ra15931a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Crystalline ZnO rods were grown and tailored on manifold carbon nanofiber paper via electrodeposition and their photocatalytic activities were examined.
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Affiliation(s)
- Sung-Ho Hwang
- Division of Nano & Energy Convergence Research
- Daegu Gyeongbuk Institute of Science and Technology (DGIST)
- Daegu 42988
- Republic of Korea
| | - Young Kwang Kim
- Division of Nano & Energy Convergence Research
- Daegu Gyeongbuk Institute of Science and Technology (DGIST)
- Daegu 42988
- Republic of Korea
| | - Song Hyun Yoon
- Division of Nano & Energy Convergence Research
- Daegu Gyeongbuk Institute of Science and Technology (DGIST)
- Daegu 42988
- Republic of Korea
| | - Sang Kyoo Lim
- Division of Nano & Energy Convergence Research
- Daegu Gyeongbuk Institute of Science and Technology (DGIST)
- Daegu 42988
- Republic of Korea
| | - Hyunwoong Park
- School of Energy Engineering
- Kyungpook National University
- Daegu 41566
- Republic of Korea
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295
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Zheng S, Wei Z, Yoshiiri K, Braumüller M, Ohtani B, Rau S, Kowalska E. Titania modification with a ruthenium(ii) complex and gold nanoparticles for photocatalytic degradation of organic compounds. Photochem Photobiol Sci 2016; 15:69-79. [DOI: 10.1039/c5pp00345h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Interaction between two kinds of titania modifiers, i.e., a ruthenium complex and gold nanoparticles, influenced the resultant properties and photocatalytic activities of hybrid photocatalysts under UV and/or vis light irradiation.
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Affiliation(s)
- Shuaizhi Zheng
- Institute for Catalysis
- Hokkaido University
- 001-0021 Sapporo
- Japan
- Institute of Inorganic Chemistry 1
| | - Zhishun Wei
- Institute for Catalysis
- Hokkaido University
- 001-0021 Sapporo
- Japan
| | - Kenta Yoshiiri
- Institute for Catalysis
- Hokkaido University
- 001-0021 Sapporo
- Japan
- Graduate School of Environmental Science
| | | | - Bunsho Ohtani
- Institute for Catalysis
- Hokkaido University
- 001-0021 Sapporo
- Japan
- Graduate School of Environmental Science
| | - Sven Rau
- Institute of Inorganic Chemistry 1
- Ulm University
- 89081 Ulm
- Germany
| | - Ewa Kowalska
- Institute for Catalysis
- Hokkaido University
- 001-0021 Sapporo
- Japan
- Graduate School of Environmental Science
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296
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Kim S, Park Y, Kim W, Park H. Harnessing and storing visible light using a heterojunction of WO3 and CdS for sunlight-free catalysis. Photochem Photobiol Sci 2016; 15:1006-11. [DOI: 10.1039/c6pp00091f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A heterojunction of CdS/WO3 is a suitable candidate to convert sunlight to electrons and store them for use during periods of unavailable sunlight.
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Affiliation(s)
- Seonghun Kim
- School of Energy Engineering
- Kyungpook National University
- Daegu 41566
- Korea
- School of Architectural
| | - Yiseul Park
- Division of Nano and Energy Convergence Research
- DGIST
- Daegu 42988
- Korea
| | - Wooyul Kim
- Department of Chemical and Biological Engineering
- Sookmyung Women's University
- Seoul 04310
- Korea
| | - Hyunwoong Park
- School of Energy Engineering
- Kyungpook National University
- Daegu 41566
- Korea
- School of Architectural
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297
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Luo Y, Yu S, Li B, Dong L, Wang F, Fan M, Zhang F. Synthesis of (Ag,F)-modified anatase TiO2 nanosheets and their enhanced photocatalytic activity. NEW J CHEM 2016. [DOI: 10.1039/c5nj02544c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The strong interactions between Ag nanoparticles and TiO2 nanosheets can improve the photocatalytic activity of TiO2 nanosheets.
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Affiliation(s)
- Yidan Luo
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- China
| | - Shuohan Yu
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- China
| | - Bin Li
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- China
| | - Lihui Dong
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- China
| | - Fan Wang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- China
| | - Minguang Fan
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- China
| | - Feiyue Zhang
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology
- School of Chemistry and Chemical Engineering
- Guangxi University
- Nanning
- China
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298
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Sedghi R, Heidari F. A novel & effective visible light-driven TiO2/magnetic porous graphene oxide nanocomposite for the degradation of dye pollutants. RSC Adv 2016. [DOI: 10.1039/c6ra02827f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel & effective visible light-driven TiO2/magnetic porous graphene oxide nanocomposite synthesized and the nanocatalyst was applied for degrading dye pollutant.
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Affiliation(s)
- Roya Sedghi
- Department of Polymer
- Faculty of Chemistry
- Shahid Beheshti University
- Tehran
- Iran
| | - Fatemeh Heidari
- Department of Polymer
- Faculty of Chemistry
- Shahid Beheshti University
- Tehran
- Iran
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299
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Sadowski R, Strus M, Buchalska M, Heczko PB, Macyk W. Visible light induced photocatalytic inactivation of bacteria by modified titanium dioxide films on organic polymers. Photochem Photobiol Sci 2015; 14:514-9. [PMID: 25254352 DOI: 10.1039/c4pp00270a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Commercially available polypropylene foil was pretreated with a low temperature oxygen plasma and covered with a thin film of nanocrystalline titanium dioxide by dip coating. The films were then photosensitized by titanium(IV) surface charge transfer complexes formed by impregnation with catechol. The photoactivity of the coatings up to 460 nm was confirmed by photoelectrochemical measurements. The photoinactivation of Escherichia coli and Staphylococcus aureus was evaluated by a glass adhesion test based on ISO 27447:2009(E) in the presence of visible light. The coating showed good antimicrobial activity induced by light from a light-emitting diode (405 nm), in particular towards E. coli ATCC 25922 strain. Adaptation of ISO 27447:2009(E) to assess bacterial photoinactivation by photocatalytic coatings will allow this procedure to be applied for the comparison of photoactivity under a range of irradiation conditions.
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Affiliation(s)
- Rafał Sadowski
- Faculty of Chemistry, Jagiellonian University in Krakow, ul. Ingardena 3, 30-060 Kraków, Poland.
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300
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Chun HH, Lee JY, Lee JH, Jo WK. Enhanced Photocatalysis of Graphene and TiO2 Dual-Coupled Carbon Nanofibers Post-treated at Various Temperatures. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b02751] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ho-Hwan Chun
- Department
of Naval Architecture and Ocean Engineering, Pusan National University, Busan 609-735, Korea
| | - Joon Yeob Lee
- Department
of Environmental Engineering, Kyungpook National University, Daegu 702-701, Korea
| | - Jun-Ho Lee
- Gyeongsangbukdo Government Public Institute of Health and Environment, Yeongcheon, Kyungpook 770-800, Korea
| | - Wan-Kuen Jo
- Department
of Environmental Engineering, Kyungpook National University, Daegu 702-701, Korea
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