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Zhang H, Du L, Wei Z, Wang X, Sojic N, Zhou X, Wang Z. Boosting the electrochemiluminescence of luminol-O 2 system by high-intensity focused ultrasound. Anal Bioanal Chem 2022; 414:8309-8315. [PMID: 36239751 DOI: 10.1007/s00216-022-04365-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 12/07/2022]
Abstract
Electrochemiluminescence (ECL) of luminol is a well-established methodology in analytical chemistry and bioimaging. Developing novel strategies to enhance the ECL signal of this model emitter is a challenging but rewarding task. In this work, we introduced the high-intensity focused ultrasound (HIFU), as a pretreatment means and a non-invasive way to trigger and boost the ECL signal with a 40-fold significant enhancement in the luminol-O2 system without the addition of exogenous co-reactants. The superoxide anion (O2-•) generated in situ by HIFU was the key initiator for boosting the ECL emission as demonstrated in this study for the first time. This promising co-reactant-free strategy could find potential applications for ultrasensitive ECL detection in the analysis of complex biological entities.
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Affiliation(s)
- Huixin Zhang
- College of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Shandong, 266071, Qingdao, China
| | - Lin Du
- College of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Shandong, 266071, Qingdao, China
| | - Zhihao Wei
- College of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Shandong, 266071, Qingdao, China
| | - Xuemei Wang
- College of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Shandong, 266071, Qingdao, China
| | - Neso Sojic
- Bordeaux INP, ISM, UMR CNRS 5255, University of Bordeaux, 33607, Pessac, France
- Department of Chemistry, South Ural State University, Chelyabinsk, Russian Federation, 454080
| | - Xin Zhou
- College of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Shandong, 266071, Qingdao, China.
| | - Zonghua Wang
- College of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Shandong Sino-Japanese Center for Collaborative Research of Carbon Nanomaterials, Instrumental Analysis Center of Qingdao University, Qingdao University, Shandong, 266071, Qingdao, China.
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2
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Łęcki T, Hamad H, Zarębska K, Wierzyńska E, Skompska M. Mechanistic insight into photochemical and photoelectrochemical degradation of organic pollutants with the use of BiVO4 and BiVO4/Co-Pi. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Iranifam M, Dadashi Z. A new NiS nanoparticles-enhanced chemiluminescence method for determination of cephalexin in the pharmaceuticals and spiked human serum. LUMINESCENCE 2022; 37:1682-1688. [PMID: 35860860 DOI: 10.1002/bio.4343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 06/11/2022] [Accepted: 07/18/2022] [Indexed: 11/08/2022]
Abstract
It is reported that NiS nanoparticles (NPs) can enhance the light emission from chemiluminescence (CL) reaction of luminol-O2 (λmax = 425 nm), remarkably. Additionally, it was shown that cephalexin (CEF) could further increase the intensity of light emitted from NiS NPs-luminol-O2 CL reaction. Inspired in these findings, we intended to develop a new and straightforward CL method for the determination of CEF. A calibration graph over the range of 1.00 × 10-6 - 4.00 × 10-5 mol L-1 was established. The limit of detection (LOD) of the CL method was 8.00 × 10-7 mol L-1 . The coefficient of variation (CV) of the CL methods was 2.20% (n = 6) for the measurement of 6.00 × 10-6 mol L-1 CEF. NiS NPs were produced by exploiting the precipitation method and identified by employing several spectroscopic approaches. The proposed CL method was successfully used to measure CEF in some pharmaceutical and spiked human serum. The chemical mechanism governing the CL reaction was briefly explained.
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Affiliation(s)
- Mortaza Iranifam
- Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran
| | - Zahra Dadashi
- Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran
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4
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Hassanpour-Khaneghah M, Iranifam M, Naseri A, Al Lawati HAJ. Nickel oxide hollow microsphere for the chemiluminescence determination of tuberculostatic drug isoniazid. LUMINESCENCE 2022; 37:1184-1191. [PMID: 35567303 DOI: 10.1002/bio.4273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 11/09/2022]
Abstract
In this paper, NiO hollow microspheres (HMSs) were fabricated and used to catalyze chemiluminescence (CL) reaction. The studied CL reaction is the luminol-O2 reaction that was used as a sensitive analytical tool for measuring tuberculostatic drug isoniazid (IND) in pharmaceutical formulations and water samples. The CL method was established based on the suppression impact of IND on the CL reaction. The NiO HMSs were produced by a simple hydrothermal method and characterized by several spectroscopic techniques. The result of essential parameters on the analytical performance of the CL method, including concentrations of NaOH, luminol, and NiO HMSs were investigated. At the optimum conditions, the calibration curve for isoniazid was linear in the range of 8.00 × 10-7 - 1.00 × 10-4 mol L-1 (R2 =0.99). A detection limit (3S) of 2.00 × 10-7 mol L-1 was obtained for this method. The acceptable relative standard deviation (RSD) was obtained for the proposed CL method (2.63%, n=10) for a 5.00 ×10-6 mol L-1 IND solution. The mechanism of the CL reaction was also discussed.
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Affiliation(s)
| | - Mortaza Iranifam
- Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran
| | - Abdolhossein Naseri
- Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Haider A J Al Lawati
- Department of Chemistry, College of Science, Sultan Qaboos University, Box 36, Al-Khod, Oman
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5
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Iranifam M, Haggi A, Akhteh H, Amini M, Al Lawati HAJ. Synthesis of rod-like CeO 2 nanoparticles and their application to catalyze the luminal-O 2 chemiluminescence reaction used in the determination of oxcarbazepine and ascorbic acid. ANAL SCI 2022; 38:787-793. [PMID: 35298793 DOI: 10.1007/s44211-022-00096-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/27/2022] [Indexed: 11/28/2022]
Abstract
Rod-like CeO2 nanoparticles (NPs) were produced by the quick precipitation approach and employed as a catalyzer to increase the chemiluminescence (CL) intensity of the luminol-O2 reaction. The transmission electron microscopy (TEM) images of the CeO2 NPs showed that rod-like particles with the length and diameter about 15 nm and 5 nm, respectively, were produced. Furthermore, pharmaceuticals including oxcarbazepine (OXP) and ascorbic acid (AA) showed an inhibitory effect against the CL intensity such that the more concentration of the pharmaceuticals, the less was the CL intensity. Therefore, the new CeO2 NPs-luminol-O2 CL reaction was developed to determine OXP and AA in the pharmaceutical formulations. It is the first CL method established for the quantification of OXP. The linear dynamic range of this method for OXP was from 6.0 × 10-7 to 6.0 × 10-5 mol L-1 and for AA from 1.0 × 10-6 to 1.0 × 10-4 mol L-1.
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Affiliation(s)
- Mortaza Iranifam
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box: 55181-83111, Maragheh, Iran.
| | - Asghar Haggi
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box: 55181-83111, Maragheh, Iran
| | - Hossein Akhteh
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box: 55181-83111, Maragheh, Iran
| | - Mojtaba Amini
- Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box: 55181-83111, Maragheh, Iran.,Department of Inorganic Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
| | - Haider A J Al Lawati
- Department of Chemistry, College of Science, Sultan Qaboos University, Box 36, Al-Khod, 123, Muscat, Oman
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6
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Iranifam M, Dadashi Z. Chemiluminescence determination of vancomycin by using NiS nanoparticles-luminol-O 2 system. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120489. [PMID: 34688148 DOI: 10.1016/j.saa.2021.120489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 10/02/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
In this research, NiS nanoparticles (NPs) were produced using a hydrothermal technique and characterized by several spectroscopic methods. Here, for the first time, it was shown that NiS NPs could be exploited as a nanocatalyst in a chemiluminescence (CL) reaction. Here, it was introduced that NiS NPs could intensify luminol-O2 CL reaction, remarkably. Besides, it was shown that vancomycin (VAN) suppresses the CL intensity of NiS NPs-luminol-O2 reaction. By exploiting the results obtained, a new and straightforward CL method was developed for the measurement of VAN. The linear concentration range of the CL method was 4.00 × 10-6 - 1.00 × 10-3 mol L-1. The limit of detection (LOD) was equal to 1.40 × 10-6 mol L-1 and the relative standard deviation (RSD) of the CL method was 3.00% (n = 6) for the determination of 8.00 × 10-5 mol L-1 VAN. The established CL method was applied to quantify VAN in the injection and spiked human serum.
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Affiliation(s)
- Mortaza Iranifam
- Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran.
| | - Zahra Dadashi
- Department of Chemistry, Faculty of Science, University of Maragheh, Maragheh, Iran
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7
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New insight into the effect of interface supercapacitance on the performance of titanium dioxide/carbon nanowire array for photoelectrochemical water oxidation. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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8
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Majumder S, Quang ND, Hung NM, Chinh ND, Kim C, Kim D. Deposition of zinc cobaltite nanoparticles onto bismuth vanadate for enhanced photoelectrochemical water splitting. J Colloid Interface Sci 2021; 599:453-466. [PMID: 33962206 DOI: 10.1016/j.jcis.2021.04.116] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 04/01/2021] [Accepted: 04/22/2021] [Indexed: 12/14/2022]
Abstract
During the past few decades, photoelectrochemical (PEC) water splitting has attracted significant attention because of the reduced production cost of hydrogen obtained by utilizing solar energy. Significant efforts have been invested by the scientific community to produce stable ternary metal oxide semiconductors, which can enhance the stability and increase the overall production of oxygen. Herein, we present the ternary metal oxide deposition of ZnCo2O4 as a route to obtain a novel photocatalyst layer on BiVO4 to form BiVO4/ZnCo2O4 a novel composite photoanode for PEC water splitting. The structural, topographical, and optical analyses were performed using field emission scanning electron microscopy, X-ray diffraction, high-resolution transmission electron microscopy, and UV-Vis spectroscopy to confirm the structure of the ZnCo2O4 grafted over BiVO4. A remarkable 4.4-fold enhancement of the photocurrent was observed for the BiVO4/ZnCo2O4 composite compared with bare BiVO4 under visible illumination. The optimum loading of ZnCo2O4 over BiVO4 yields unprecedented stable photocurrent density with an apparent cathodic shift of 0.46 V under 1.5 AM simulated light illumination. This is also evidenced by the flat-band potential change through Mott-Schottky analysis, which reveals the formation of p-ZnCo2O4 on n-BiVO4. The improvement in the PEC performance of the composite with respect to bare BiVO4 is ascribed to the formation of thin passivating layer of p-ZnCo2O4 on n-BiVO4 which improves the kinetics of interfacial charge transfer. Based on our study, we have gained an in-depth understanding of the BiVO4/ZnCo2O4 composite as high potential in efficient PEC water splitting devices.
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Affiliation(s)
- Sutripto Majumder
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Nguyen Duc Quang
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Nguyen Manh Hung
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea; Department of Materials Science and Engineering, Le Quy Don Technical University, Hanoi, 100000, Viet Nam
| | - Nguyen Duc Chinh
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Chunjoong Kim
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Dojin Kim
- Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Republic of Korea.
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9
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Rtimi S, Konstantinidis S, Britun N, Nadtochenko V, Khmel I, Kiwi J. New Evidence for Ag-Sputtered Materials Inactivating Bacteria by Surface Contact without the Release of Ag Ions: End of a Long Controversy? ACS APPLIED MATERIALS & INTERFACES 2020; 12:4998-5007. [PMID: 31895531 DOI: 10.1021/acsami.9b15859] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The study provides new evidence for Ag-coated polyester (PES) mediating Escherichia coli inactivation by way of genetically engineered E. coli (without porins, from now denoted porinless bacteria). This allows the quantification of the bactericidal kinetics induced by the Ag surface without the intervention of Ag ions. Bacterial inactivation mediated by Ag-PES was seen to be completed within 60 min. The samples were prepared by high-power impulse magnetron sputtering (HiPIMS) at different sputter powers. In anaerobic media, this process required 120 min. The amounts of ions (Ar+, Ag+, and Ag2+) generated during the deposition by direct current magnetron sputtering (DCMS) and HiPIMS were determined by mass spectrometry. The thickness of the Ag films sputtered on PES by DCMS (0.28 A) during 100 s was found to be 340 nm. Thicknesses of 250, 230, and 200 nm were found when sputtering with HiPIMS was tuned at 8, 17, and 30 A, respectively. By scanning transmission electron microscopy (STEM-HAADF), the atomic distribution of Ag and oxygen was detected. By X-ray photoelectron spectroscopy (XPS), a shift in the Ag oxidation state was observed within the bacterial inactivation period. This reveals redox catalysis within the time required for the total bacterial inactivation due to the interaction between the bacterial suspension and Ag-PES. Surface properties of the Ag-coated PES samples were additionally investigated by X-ray diffraction (XRD). The formation of Ag plasmon was detected by diffuse reflectance spectroscopy (DRS) and was a function of the applied sputtering energy. The indoor sunlight irradiation dose required to induce an accelerated bacterial inactivation was found to be 5-10 mW/cm2.
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Affiliation(s)
- Sami Rtimi
- Ecole Polytechnique Fédérale de Lausanne, EPFL-STI-LTP , Station 12 , CH-1015 Lausanne , Switzerland
| | - Stephanos Konstantinidis
- Chimie des Interactions Plasma-Surface , Université de Mons , Place du Parc 23 , 7000 Mons , Belgium
| | - Nikolay Britun
- Chimie des Interactions Plasma-Surface , Université de Mons , Place du Parc 23 , 7000 Mons , Belgium
| | - Victor Nadtochenko
- N. Semenov Federal Research Center Chemical Physics , Russian Academy of Sciences , Kosygin Street 4 , Moscow 119991 , Russia
| | - Inessa Khmel
- Institute of Molecular Genetics , Russian Academy of Sciences , Kurchatov sq.2 , Moscow 123182 , Russia
| | - John Kiwi
- Ecole Polytechnique Fédérale de Lausanne EPFL-GPAO , Bat GC, Station 6 , CH-1015 Lausanne , Switzerland
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10
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Qin J, Qian S, Chen Q, Chen L, Yan L, Shen G. Cow manure-derived biochar: Its catalytic properties and influential factors. JOURNAL OF HAZARDOUS MATERIALS 2019; 371:381-388. [PMID: 30870642 DOI: 10.1016/j.jhazmat.2019.03.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 02/26/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
The conversion of waste biomass into biochar is considered as a waste disposal alternative, especially because biochar is a low-cost adsorbent for soil contaminants. However, a risk of desorption of contaminants from biochar may lead to secondary pollution. This study investigated the degradation behavior of soil fumigant, 1,3-dichloropropne (1,3-D), on cow manure-derived biochar (CMB) pyrolyzed at five different temperatures from 300 to 700 °C (termed as C-300 to C-700). Results showed that 1,3-D degradation rate was U-shape related to biochar pyrolysis temperature. Four degradation byproducts (NH2CH2CH2CH3OH, CH3CH2NH2, NH2COCONH2, OHCH2COOH) were identified by headspace GC-MS. When biochar humidity improved from 0 to 50% or incubation temperature increased from 20 to 40 °C, the degradation of cis-1,3-D on C-300 improved 24.26% and 35.48%, respectively. The OH concentrations, detected by the terephthalic acid method, were considerably higher for C-300 than that for C-700. Pyrolysis temperature (300-700 ° C) governed biochar physicochemical properties and further affected 1,3-D degradation mechanisms (pH-controlled substitution or OH-restricted oxidation reaction). All these findings showed that CMB can adsorb and degrade 1,3-D, thereby reduce its desorption risk, indicative of the conversion of cow manure into biochar as an effective waste management practice.
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Affiliation(s)
- Jiaolong Qin
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Shiying Qian
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Qincheng Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Lu Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Lili Yan
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Guoqing Shen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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11
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Gutkowski R, Masa J, Schuhmann W. A Combinatorial Approach for Optimization of Oxygen Evolution Catalyst Loading on Mo‐doped BiVO
4
Photoanodes. ELECTROANAL 2019. [DOI: 10.1002/elan.201900147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ramona Gutkowski
- Analytical Chemistry – Center for Electrochemical Science (CES); Faculty of Chemistry and BiochemistryRuhr-Universität Bochum Universitätsstr. 150 D-44801 Bochum Germany
| | - Justus Masa
- Analytical Chemistry – Center for Electrochemical Science (CES); Faculty of Chemistry and BiochemistryRuhr-Universität Bochum Universitätsstr. 150 D-44801 Bochum Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry – Center for Electrochemical Science (CES); Faculty of Chemistry and BiochemistryRuhr-Universität Bochum Universitätsstr. 150 D-44801 Bochum Germany
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12
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Kontoleta E, Askes SHC, Lai LH, Garnett EC. Localized photodeposition of catalysts using nanophotonic resonances in silicon photocathodes. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:2097-2105. [PMID: 30202682 PMCID: PMC6122171 DOI: 10.3762/bjnano.9.198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
Nanostructured semiconductors feature resonant optical modes that confine light absorption in specific areas called "hot spots". These areas can be used for localized extraction of the photogenerated charges, which in turn could drive chemical reactions for synthesis of catalytic materials. In this work, we use these nanophotonic hot spots in vertical silicon nanowires to locally deposit platinum nanoparticles in a photo-electrochemical system. The tapering angle of the silicon nanowires as well as the excitation wavelength are used to control the location of the hot spots together with the deposition sites of the platinum catalyst. A combination of finite difference time domain (FDTD) simulations with scanning electron microscopy image analysis showed a reasonable correlation between the simulated hot spots and the actual experimental localization and quantity of platinum atoms. This nanophotonic approach of driving chemical reactions at the nanoscale using the optical properties of the photo-electrode, can be very promising for the design of lithography-free and efficient hierarchical nanostructures for the generation of solar fuels.
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Affiliation(s)
- Evgenia Kontoleta
- Center for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
| | - Sven H C Askes
- Center for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
| | - Lai-Hung Lai
- Center for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
| | - Erik C Garnett
- Center for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, Netherlands
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13
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An organic-inorganic hybrid photoelectrochemical storage cell for improved solar energy storage. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.11.087] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Fang D, Li X, Liu H, Xu W, Jiang M, Li W, Fan X. BiVO 4-rGO with a novel structure on steel fabric used as high-performance photocatalysts. Sci Rep 2017; 7:7979. [PMID: 28801660 PMCID: PMC5554144 DOI: 10.1038/s41598-017-07342-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/28/2017] [Indexed: 11/18/2022] Open
Abstract
A high-performance and novel photocatalyst of BiVO4-reduced Graphene Oxide (BiVO4-rGO) nanocomposite was prepared by a facile hydrothermal method. The photocatalyst was characterized by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electronic microscopy, UV-Vis diffusion reflectance spectroscopy, photoluminescence spectroscopy and UV-Vis adsorption spectroscopy, respectively. The visible-light photocatalytic activity was evaluated by oxidation of methyl orange (MO) under simulated sunlight irradiation. The results show that the BiVO4-rGO nanocomposites exhibit enhanced photocatalytic performance for the degradation of MO with a maximum removal rate of 98.95% under visible light irradiation as compared with pure BiVO4 (57.55%) due to the increased light absorption intensity and the degradation of electron-hole pair recombination in BiVO4 with the introduction of the rGO.
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Affiliation(s)
- Dong Fang
- Key Lab of Green Processing and Functional Textiles of New Textile Materials Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, 410000, P. R. China.
| | - Xiujuan Li
- Key Lab of Green Processing and Functional Textiles of New Textile Materials Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, 410000, P. R. China
| | - Hui Liu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China
| | - Weilin Xu
- Key Lab of Green Processing and Functional Textiles of New Textile Materials Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, 410000, P. R. China
| | - Ming Jiang
- Key Lab of Green Processing and Functional Textiles of New Textile Materials Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, 410000, P. R. China.
| | - Wenbin Li
- Key Lab of Green Processing and Functional Textiles of New Textile Materials Ministry of Education, College of Material Science and Engineering, Wuhan Textile University, Wuhan, 410000, P. R. China.
| | - Xin Fan
- College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, P. R. China
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15
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Zachäus C, Abdi FF, Peter LM, van de Krol R. Photocurrent of BiVO 4 is limited by surface recombination, not surface catalysis. Chem Sci 2017; 8:3712-3719. [PMID: 28580106 PMCID: PMC5437485 DOI: 10.1039/c7sc00363c] [Citation(s) in RCA: 176] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/09/2017] [Indexed: 12/22/2022] Open
Abstract
Bismuth vanadate is one of the most promising photoanode materials for photoelectrochemical water splitting. In order to achieve high photocurrents the surface of BiVO4 always has to be modified with water oxidation catalysts, such as cobalt phosphate (CoPi), FeOOH, or NiFeO x . While this has generally been attributed to the poor intrinsic catalytic activity of BiVO4, detailed insight into the fate of the photogenerated charge carriers at the surface is still lacking. We used intensity modulated photocurrent spectroscopy (IMPS) to investigate the surface carrier dynamics of bare and CoPi-modified spray-deposited BiVO4 films. Using a model developed by Peter et al., it was possible to distinguish the reaction rate constants for surface recombination and charge transfer to the electrolyte. We found that modification with CoPi reduced the surface recombination of BiVO4 with a factor of 10-20, without significantly influencing the charge transfer kinetics. Control experiments with RuO x , one of the best known OER electrocatalysts, did not affect surface recombination and led to an actual decrease of the photocurrent. These results show that the main role of the CoPi is to passivate the surface of BiVO4 and that, contrary to earlier assumptions, the photocurrent of BiVO4 is limited by surface recombination instead of charge transfer. The importance of surface recombination is well recognized for conventional semiconductors in the field of photovoltaics; these findings show that it may also play a crucial role in oxide-based semiconductors for photoelectrochemical energy conversion.
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Affiliation(s)
- Carolin Zachäus
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Institute for Solar Fuels , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany . ;
| | - Fatwa F Abdi
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Institute for Solar Fuels , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany . ;
| | - Laurence M Peter
- Department of Chemistry , University of Bath , Bath BA2, 7AY , UK
| | - Roel van de Krol
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Institute for Solar Fuels , Hahn-Meitner-Platz 1 , 14109 Berlin , Germany . ;
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Solar light-induced degradation of ethyl paraben with CuO x /BiVO 4 : Statistical evaluation of operating factors and transformation by-products. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.04.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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18
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Yang X, Li H, Zhang W, Sun M, Li L, Xu N, Wu J, Sun J. High Visible Photoelectrochemical Activity of Ag Nanoparticle-Sandwiched CdS/Ag/ZnO Nanorods. ACS APPLIED MATERIALS & INTERFACES 2017; 9:658-667. [PMID: 27982560 DOI: 10.1021/acsami.6b12259] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report on the sensitizing of CdS-coated ZnO (CdS/ZnO) nanorods (NRs) by Ag nanoparticles (NPs) embedded between the CdS coating and the ZnO nanorod and the improved optical and photoelectrochemical properties of the Ag NP-sandwiched nanostructure CdS/Ag/ZnO NRs. The CdS/Ag/ZnO NRs were fabricated by growing Ag NPs on hydrothermally grown ZnO NRs and subsequently depositing CdS coatings followed by subsequent N2 annealing. The structure of the fabricated CdS/Ag/ZnO NRs was characterized by field-emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and Raman backscattering, revealing that the ZnO NRs and the CdS coatings are both structured with hexagonal wurtzite and the Ag NPs contact well with ZnO and CdS. Optical properties were evaluated by measuring optical absorption and photoluminescence, showing that the Ag NPs behave well as sensitizers for optical property improvement and the CdS/Ag/ZnO NRs exhibit better photoresponse in a wide spectral region than CdS/ZnO because of plasmon-enhanced absorption due to the embedment of Ag NPs. The Ag NPs also serve as electron relays from CdS to ZnO, facilitating electron transfer from the CdS coatings to the ZnO NRs. The excellent photoresponse and efficient electron transfer make the CdS/Ag/ZnO NRs highly photoelectrochemically active. The CdS/Ag/ZnO NRs fabricated on indium-tin oxide present much better photoelectrochemical performance as photoanodes working in the visible region than CdS/ZnO NRs without Ag NPs. Under visible illumination, a maximum optical-to-chemical conversion efficiency of 3.13% is obtained for CdS/Ag/ZnO NR photoanodes against 1.35% for CdS/ZnO NR photoanodes.
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Affiliation(s)
- Xu Yang
- Department of Optical Science and Engineering, and Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan University , Shanghai 200433, China
| | - Hui Li
- Department of Optical Science and Engineering, and Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan University , Shanghai 200433, China
| | - Wu Zhang
- Department of Optical Science and Engineering, and Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan University , Shanghai 200433, China
| | - Mingxuan Sun
- School of Materials Engineering, Shanghai University of Engineering Science , Shanghai 201620, China
| | - Lequn Li
- Department of Optical Science and Engineering, and Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan University , Shanghai 200433, China
| | - Ning Xu
- Department of Optical Science and Engineering, and Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan University , Shanghai 200433, China
| | - Jiada Wu
- Department of Optical Science and Engineering, and Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan University , Shanghai 200433, China
| | - Jian Sun
- Department of Optical Science and Engineering, and Shanghai Engineering Research Center of Ultra-Precision Optical Manufacturing, Fudan University , Shanghai 200433, China
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19
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Wang Y, Liu F, Hua Y, Wang C, Zhao X, Liu X, Li H. Microwave synthesis and photocatalytic activity of Tb 3+ doped BiVO 4 microcrystals. J Colloid Interface Sci 2016; 483:307-313. [DOI: 10.1016/j.jcis.2016.08.048] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 08/17/2016] [Accepted: 08/19/2016] [Indexed: 10/21/2022]
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20
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Ohshima Y, Takada D, Namai S, Sawai J, Kikuchi M, Hotta M. Antimicrobial Characteristics of Heated Eggshell Powder. Biocontrol Sci 2015; 20:239-46. [PMID: 26699855 DOI: 10.4265/bio.20.239] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Eggshells have high bioavailability and can be used as a source of calcium. The main component is CaCO3, which, when heated, is converted to CaO. Seashells are also mainly composed of CaCO3 and were previously found to exhibit antimicrobial activity after being heated. In this study, heated eggshell powder (HESP) was found to have antimicrobial activity against bacterial vegetative cells, fungi and bacterial spores. Parameters, such as the minimum inhibitory concentration, were determined with kinetic analysis using an indirect conductimetric assay. Moreover, HESP was able to kill the Bacillus subtilis spores. There were no significant differences in the activity between HESP, heated scallop-shell powder and pure CaO. The MIC values for HESP against bacteria and fungi were 0.29-0.43 and 1.3-1.5 mg/mL, respectively. Against B. subtilis spores, a reduction of two orders of magnitude of viability was confirmed following 20 min of treatment at 10 mg/mL at 60 ℃. The active oxygen generated from the HESP slurry was examined with chemiluminescence. The intensity of this increased with increasing concentrations of the HESP slurry. This suggests that HESP could be used as a natural antimicrobial agent. Although a high pH is the main contributor to this antimicrobial activity, active oxygen species generated from HESP are likely to be the main antimicrobial agents..
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Affiliation(s)
- Yuki Ohshima
- Faculty of Applied Bioscience, Kanagawa Institute of Technology
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21
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Wang L, Han D, Ni S, Ma W, Wang W, Niu L. Photoelectrochemical device based on Mo-doped BiVO 4 enables smart analysis of the global antioxidant capacity in food. Chem Sci 2015; 6:6632-6638. [PMID: 29435212 PMCID: PMC5802276 DOI: 10.1039/c5sc02277k] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Accepted: 08/16/2015] [Indexed: 11/30/2022] Open
Abstract
For a healthy diet, which is an extension of a high quality lifestyle, tremendous attention has been focused on using antioxidant capacity indicators for food inspections and health guides. Although photoelectrochemical transducers have broadened our horizons for global antioxidant activity analysis, a growing body of foods and beverages needs to be quantified in the visible region and the necessary photoelectrochemical instrumentalization is still in its infancy. Generally, BiVO4 is considered as an ideal starting material for antioxidant surveillance under visible light irradiation. However, it is subjected to unsatisfied charge collection and utilization in practical applications. Herein, we studied the effects of successive molybdenum substitution of vanadium on the photocatalytic behavior of BiMo x V(1-x)O4 under visible light illumination. A superior photocurrent density was obtained for BiMo0.015V0.985O4 due to the flower-like architecture and favorable crystalline form. At the same time, this superhybrid BiMo0.015V0.985O4 composite successfully acted as a sensing unit in a photoelectrochemical platform for antioxidant capacity evaluation in foodstuffs. The related mechanism was further unearthed and discussed in-depth. Such a straightforward yet cogent principle was also applied to our integrated device for the "smart" analysis of the global antioxidant capacity, whereby collected data can be treated as a nutritive value index for routine quality control in the food industry. On the basis of this achievement, it is anticipated that mobile app-based quantitative antioxidant capacity detection will soon be realized.
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Affiliation(s)
- Lingnan Wang
- State Key Laboratory of Electroanalytical Chemistry , c/o Engineering Laboratory for Modern Analytical Techniques , Changchun Institute of Applied Chemistry , Changchun , Jilin 130022 , P. R. China . ; ; Tel: +86-431-85262425
- University of Chinese Academy of Sciences , Beijing 100039 , P. R. China
| | - Dongxue Han
- State Key Laboratory of Electroanalytical Chemistry , c/o Engineering Laboratory for Modern Analytical Techniques , Changchun Institute of Applied Chemistry , Changchun , Jilin 130022 , P. R. China . ; ; Tel: +86-431-85262425
| | - Shuang Ni
- State Key Laboratory of Electroanalytical Chemistry , c/o Engineering Laboratory for Modern Analytical Techniques , Changchun Institute of Applied Chemistry , Changchun , Jilin 130022 , P. R. China . ; ; Tel: +86-431-85262425
- Shenyang Agricultural University , Shenyang 110161 , P. R. China
| | - Weiguang Ma
- State Key Laboratory of Electroanalytical Chemistry , c/o Engineering Laboratory for Modern Analytical Techniques , Changchun Institute of Applied Chemistry , Changchun , Jilin 130022 , P. R. China . ; ; Tel: +86-431-85262425
- University of Chinese Academy of Sciences , Beijing 100039 , P. R. China
| | - Wei Wang
- State Key Laboratory of Electroanalytical Chemistry , c/o Engineering Laboratory for Modern Analytical Techniques , Changchun Institute of Applied Chemistry , Changchun , Jilin 130022 , P. R. China . ; ; Tel: +86-431-85262425
| | - Li Niu
- State Key Laboratory of Electroanalytical Chemistry , c/o Engineering Laboratory for Modern Analytical Techniques , Changchun Institute of Applied Chemistry , Changchun , Jilin 130022 , P. R. China . ; ; Tel: +86-431-85262425
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22
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Nalbandian MJ, Zhang M, Sanchez J, Choa YH, Cwiertny DM, Myung NV. Synthesis and optimization of BiVO4 and co-catalyzed BiVO4 nanofibers for visible light-activated photocatalytic degradation of aquatic micropollutants. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.04.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Abstract
The normal biochemical reactions in our body, increased exposure to the environment, and higher levels of dietary xenobiotic's result in the generation of reactive oxygen species (ROS) and reactive nitrogen species (RNS).
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Affiliation(s)
| | - Dilipkumar Pal
- Institute of Pharmaceutical Sciences
- Guru Ghasidas Vishwavidyalaya (A Central University)
- Bilaspur
- India
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24
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Wang L, Ma W, Gan S, Han D, Zhang Q, Niu L. Engineered Photoelectrochemical Platform for Rational Global Antioxidant Capacity Evaluation Based on Ultrasensitive Sulfonated Graphene–TiO2 Nanohybrid. Anal Chem 2014; 86:10171-8. [DOI: 10.1021/ac502181n] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lingnan Wang
- State Key Laboratory
of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern
Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Weiguang Ma
- State Key Laboratory
of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern
Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Shiyu Gan
- State Key Laboratory
of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern
Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
- University of Chinese Academy of Sciences, Beijing 100039, China
| | - Dongxue Han
- State Key Laboratory
of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern
Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
| | - Qixian Zhang
- State Key Laboratory
of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern
Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
| | - Li Niu
- State Key Laboratory
of Electroanalytical Chemistry, c/o Engineering Laboratory for Modern
Analytical Techniques, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China
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25
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Sun S, Wang W, Li D, Zhang L, Jiang D. Solar Light Driven Pure Water Splitting on Quantum Sized BiVO4 without any Cocatalyst. ACS Catal 2014. [DOI: 10.1021/cs501076a] [Citation(s) in RCA: 214] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Songmei Sun
- State Key
Laboratory of High
Performance Ceramics and Superfine Microstructure, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Wenzhong Wang
- State Key
Laboratory of High
Performance Ceramics and Superfine Microstructure, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Dezhi Li
- State Key
Laboratory of High
Performance Ceramics and Superfine Microstructure, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Ling Zhang
- State Key
Laboratory of High
Performance Ceramics and Superfine Microstructure, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
| | - Dong Jiang
- State Key
Laboratory of High
Performance Ceramics and Superfine Microstructure, Shanghai Institute
of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China
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26
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YASUE SYOGO, SAWAI JUN, KIKUCHI MIKIO, NAKAKUKI TAKAHITO, SANO KAZUO, KIKUCHI TAKAHIDE. Sporicidal Characteristics of Heated Dolomite Powder against Bacillus subtilis Spores. Biocontrol Sci 2014; 19:113-9. [DOI: 10.4265/bio.19.113] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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27
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Qin DD, Wang T, Song YM, Tao CL. Reduced monoclinic BiVO4 for improved photoelectrochemical oxidation of water under visible light. Dalton Trans 2014; 43:7691-4. [DOI: 10.1039/c3dt53575d] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Li P, Zhou Y, Tu W, Liu Q, Yan S, Zou Z. Direct Growth of Fe2V4O13Nanoribbons on a Stainless-Steel Mesh for Visible-Light Photoreduction of CO2into Renewable Hydrocarbon Fuel and Degradation of Gaseous Isopropyl Alcohol. Chempluschem 2013. [DOI: 10.1002/cplu.201200289] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Kubo M, Ohshima Y, Irie F, Kikuchi M, Sawai J. Disinfection Treatment of Heated Scallop-Shell Powder on Biofilm of <i>Escherichia coli</i> ATCC 25922 Surrogated for <i>E. coli</i> O157:H7. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jbnb.2013.44a002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Murakami N, Takebe N, Tsubota T, Ohno T. Improvement of visible light photocatalytic acetaldehyde decomposition of bismuth vanadate/silica nanocomposites by cocatalyst loading. JOURNAL OF HAZARDOUS MATERIALS 2012; 211-212:83-87. [PMID: 22236946 DOI: 10.1016/j.jhazmat.2011.12.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 10/05/2011] [Accepted: 12/12/2011] [Indexed: 05/31/2023]
Abstract
Photocatalytic activity of bismuth vanadate (BiVO(4)) for acetaldehyde decomposition under visible light irradiation was improved by inclusion of a nanocomposition of silica as an adsorbent material and loading of platinum (Pt) or trivalent iron ion (Fe(3+)) as reduction cocatalysts. Addition of silica enhanced photocatalytic activity due to improvement of adsorption ability, but total decomposition of acetaldehyde was not observed within 24h of visible light irradiation. For further improvement of photocatalytic activity, BiVO(4) with an optimized amount of silica composition were modified with Pt or Fe(3+). Photodeposition of Pt greatly increased photocatalytic activity, and acetaldehyde was totally decomposed within 24h of visible light irradiation.
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Affiliation(s)
- Naoya Murakami
- Department of Applied Chemistry, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan
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Pilli SK, Deutsch TG, Furtak TE, Turner JA, Brown LD, Herring AM. Light induced water oxidation on cobalt-phosphate (Co–Pi) catalyst modified semi-transparent, porous SiO2–BiVO4 electrodes. Phys Chem Chem Phys 2012; 14:7032-9. [DOI: 10.1039/c2cp40673j] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Cao SW, Yin Z, Barber J, Boey FYC, Loo SCJ, Xue C. Preparation of Au-BiVO4 heterogeneous nanostructures as highly efficient visible-light photocatalysts. ACS APPLIED MATERIALS & INTERFACES 2012; 4:418-423. [PMID: 22141400 DOI: 10.1021/am201481b] [Citation(s) in RCA: 135] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Au-BiVO(4) heterogeneous nanostructures have been successfully prepared through in situ growth of gold nanoparticles on BiVO(4) microtubes and nanosheets via a cysteine-linking strategy. The experimental results reveal that these Au-BiVO(4) heterogeneous nanostructures exhibit much higher visible-light photocatalytic activities than the individual BiVO(4) microtubes and nanosheets for both dye degradation and water oxidation. The enhanced photocatalytic efficiencies are attributed to the charge transfer from BiVO(4) to the attached gold nanoparticles as well as their surface plasmon resonance (SPR) absorption. These new heteronanostructures are expected to show considerable potential applications in solar-driven wastewater treatment and water splitting.
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Affiliation(s)
- Shao-Wen Cao
- Solar Fuels Laboratory, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
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33
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Castillo NC, Ding L, Heel A, Graule T, Pulgarin C. On the photocatalytic degradation of phenol and dichloroacetate by BiVO4: The need of a sacrificial electron acceptor. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.08.021] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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34
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Kohtani S, Yoshioka E, Saito K, Kudo A, Miyabe H. Photocatalytic hydrogenation of acetophenone derivatives and diaryl ketones on polycrystalline titanium dioxide. CATAL COMMUN 2010. [DOI: 10.1016/j.catcom.2010.04.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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35
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Development of a fluorescence-based method for evaluation of self-cleaning properties of photocatalytic layers. Catal Today 2010. [DOI: 10.1016/j.cattod.2010.03.043] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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36
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Yue Q, Zhang K, Chen X, Wang L, Zhao J, Liu J, Jia J. Generation of OH radicals in oxygen reduction reaction at Pt–Co nanoparticles supported on graphene in alkaline solutions. Chem Commun (Camb) 2010; 46:3369-71. [DOI: 10.1039/c000084a] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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