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Huang CH, Lu YJ, Pan YC, Liu HL, Chang JY, Sie JL, Pijanowska DG, Yang CM. Nanohollow Titanium Oxide Structures on Ti/FTO Glass Formed by Step-Bias Anodic Oxidation for Photoelectrochemical Enhancement. NANOMATERIALS 2022; 12:nano12111925. [PMID: 35683780 PMCID: PMC9182085 DOI: 10.3390/nano12111925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/27/2022] [Accepted: 06/02/2022] [Indexed: 02/04/2023]
Abstract
In this study, a new anodic oxidation with a step-bias increment is proposed to evaluate oxidized titanium (Ti) nanostructures on transparent fluorine-doped tin oxide (FTO) on glass. The optimal Ti thickness was determined to be 130 nm. Compared to the use of a conventional constant bias of 25 V, a bias ranging from 5 V to 20 V with a step size of 5 V for 3 min per period can be used to prepare a titanium oxide (TiOx) layer with nanohollows that shows a large increase in current of 142% under UV illumination provided by a 365 nm LED at a power of 83 mW. Based on AFM and SEM, the TiOx grains formed in the step-bias anodic oxidation were found to lead to nanohollow generation. Results obtained from EDS mapping, HR-TEM and XPS all verified the TiOx composition and supported nanohollow formation. The nanohollows formed in a thin TiOx layer can lead to a high surface roughness and photon absorbance for photocurrent generation. With this step-bias anodic oxidation methodology, TiOx with nanohollows can be obtained easily without any extra cost for realizing a high current under photoelectrochemical measurements that shows potential for electrochemical-based sensing applications.
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Affiliation(s)
- Chi-Hsien Huang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei 243, Taiwan; (C.-H.H.); (J.-L.S.)
| | - Yu-Jen Lu
- Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou, Taoyuan City 333, Taiwan;
- The College of Medicine, Chang Gung University, Taoyuan City 333, Taiwan
| | - Yong-Chen Pan
- Department of Electronic Engineering, Chang Gung University, Taoyuan City 333, Taiwan; (Y.-C.P.); (H.-L.L.); (J.-Y.C.)
| | - Hui-Ling Liu
- Department of Electronic Engineering, Chang Gung University, Taoyuan City 333, Taiwan; (Y.-C.P.); (H.-L.L.); (J.-Y.C.)
| | - Jia-Yuan Chang
- Department of Electronic Engineering, Chang Gung University, Taoyuan City 333, Taiwan; (Y.-C.P.); (H.-L.L.); (J.-Y.C.)
| | - Jhao-Liang Sie
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei 243, Taiwan; (C.-H.H.); (J.-L.S.)
| | - Dorota G. Pijanowska
- Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, 02-109 Warsaw, Poland
- Correspondence: (D.G.P.); (C.-M.Y.); Tel.: +48-22-6599143 (ext. 141) (D.G.P.); +886-3-2118800 (ext. 5960) (C.-M.Y.)
| | - Chia-Ming Yang
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei 243, Taiwan; (C.-H.H.); (J.-L.S.)
- Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou, Taoyuan City 333, Taiwan;
- Department of Electronic Engineering, Chang Gung University, Taoyuan City 333, Taiwan; (Y.-C.P.); (H.-L.L.); (J.-Y.C.)
- Institute of Electro-Optical Engineering, Chang Gung University, Taoyuan City 333, Taiwan
- Biosensor Group, Biomedical Engineering Research Center, Chang Gung University, Taoyuan City 333, Taiwan
- Artificial Intelligence Research Center, Chang Gung University, Taoyuan City 333, Taiwan
- Correspondence: (D.G.P.); (C.-M.Y.); Tel.: +48-22-6599143 (ext. 141) (D.G.P.); +886-3-2118800 (ext. 5960) (C.-M.Y.)
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Liang S, Chen W, Yin S, Schaper SJ, Guo R, Drewes J, Carstens N, Strunskus T, Gensch M, Schwartzkopf M, Faupel F, Roth SV, Cheng YJ, Müller-Buschbaum P. Tailoring the Optical Properties of Sputter-Deposited Gold Nanostructures on Nanostructured Titanium Dioxide Templates Based on In Situ Grazing-Incidence Small-Angle X-ray Scattering Determined Growth Laws. ACS APPLIED MATERIALS & INTERFACES 2021; 13:14728-14740. [PMID: 33734685 DOI: 10.1021/acsami.1c00972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Gold/titanium dioxide (Au/TiO2) nanohybrid materials have been widely applied in various fields because of their outstanding optical and photocatalytic performance. By state-of-the-art polymer templating, it is possible to make uniform nanostructured TiO2 layers with potentially large-scale processing methods. We use customized polymer templating to achieve TiO2 nanostructures with different morphologies. Au/TiO2 hybrid thin films are fabricated by sputter deposition. An in-depth understanding of the Au morphology on the TiO2 templates is achieved with in situ grazing-incidence small-angle X-ray scattering (GISAXS) during the sputter deposition. The resulting Au nanostructure is largely influenced by the TiO2 template morphology. Based on the detailed understanding of the Au growth process, characteristic distances can be selected to achieve tailored Au nanostructures at different Au loadings. For selected sputter-deposited Au/TiO2 hybrid thin films, the optical response with a tailored localized surface plasmon resonance is demonstrated.
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Affiliation(s)
- Suzhe Liang
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Wei Chen
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Shanshan Yin
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Simon J Schaper
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Renjun Guo
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
| | - Jonas Drewes
- Lehrstuhl für Materialverbunde, Institut für Materialwissenschaft, Christian-Albrechts-Universität zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
| | - Niko Carstens
- Lehrstuhl für Materialverbunde, Institut für Materialwissenschaft, Christian-Albrechts-Universität zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
| | - Thomas Strunskus
- Lehrstuhl für Materialverbunde, Institut für Materialwissenschaft, Christian-Albrechts-Universität zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
| | - Marc Gensch
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
- Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
| | | | - Franz Faupel
- Lehrstuhl für Materialverbunde, Institut für Materialwissenschaft, Christian-Albrechts-Universität zu Kiel, Kaiserstr. 2, 24143 Kiel, Germany
| | - Stephan V Roth
- Deutsches Elektronen-Synchrotron (DESY), Notkestr. 85, 22607 Hamburg, Germany
- Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, SE-100 44 Stockholm, Sweden
| | - Ya-Jun Cheng
- Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Zhenhai District, Ningbo, Zhejiang Province 315201, P. R. China
- Department of Materials, University of Oxford, Parks Road, OX1 3PH Oxford, United Kingdom
| | - Peter Müller-Buschbaum
- Lehrstuhl für Funktionelle Materialien, Physik-Department, Technische Universität München, James-Franck-Str. 1, 85748 Garching, Germany
- Heinz Maier-Leibniz Zentrum (MLZ), Technische Universität München, Lichtenbergstraße 1, 85748 Garching, Germany
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Yu D, Zhang Y, Wang F, Dai J. Preparation of ZnO/two-layer self-doped black TiO 2 nanotube arrays and their enhanced photochemical properties. RSC Adv 2021; 11:2307-2314. [PMID: 35424155 PMCID: PMC8693676 DOI: 10.1039/d0ra09099a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 12/28/2020] [Indexed: 11/29/2022] Open
Abstract
Highly efficient TiO2 photoanodes can be achieved by enhancing electrical conductivity and improving charge separation and transfer. In this paper, Ti foils were used to fabricate TiO2 nanotubes by anodic oxidation and ZnO/two-layer self-doped black TiO2 nanotubes were prepared by electrochemical reduction and a hydrothermal method. The formed black TiO2 nanotubes have a better photoconversion efficiency and the maximum photoconversion efficiency increased by 59% compared with the pure nanotubes. The deposition of ZnO further improves the maximum photoconversion efficiency to 456% based on black TiO2. The photocurrent responses also increase by about 5 times in our results. This work is instructive for the development of highly robust and efficient photoanode materials in fields including photoelectrochemistry and photocatalysis. Highly efficient TiO2 photoanodes can be achieved by enhancing electrical conductivity and improving charge separation and transfer.![]()
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Affiliation(s)
- Dengji Yu
- Department of Physics, School of Science, Jiangsu University of Science and Technology Zhenjiang 212003 China
| | - Yunfang Zhang
- Department of Physics, School of Science, Jiangsu University of Science and Technology Zhenjiang 212003 China
| | - Fang Wang
- Department of Physics, School of Science, Jiangsu University of Science and Technology Zhenjiang 212003 China
| | - Jun Dai
- Department of Physics, School of Science, Jiangsu University of Science and Technology Zhenjiang 212003 China
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Çakıroğlu B, Özacar M. Efficient chemiluminescence harnessing via slow photons in sensitized TiO2 nanotubes for the photoelectrochemical biosensing. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lan G, Nong J, Wei W, Liu X, Luo P, Jin W, Wei D, Wei D. Highly stable all-in-one photoelectrochemical electrodes based on carbon nanowalls. NANOTECHNOLOGY 2020; 31:335401. [PMID: 32330907 DOI: 10.1088/1361-6528/ab8cf5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Photoelectrochemical (PEC) cells offer a promising approach for developing low-cost solar energy conversion systems. However, the lack of stable and cost-effective electrodes remains a bottleneck that hampers their practical applications. Here, we propose a kind of integrated all-in-one three-dimensional (3D) carbon nanowall (CNW) electrode without sensitized semiconductors for stable all-carbon PEC cells. The all-in-one CNW electrodes were fabricated by directly growing CNW on both sides of the SiO2/Si/SiO2 wafer employing the radio frequency plasmon enhanced chemical vapor deposition method. Benefitting from the interconnected 3D textured structure, the CNW can effectively absorb the incident light and provide a large electrochemical reaction interface at the CNW surface that promotes the separation of photogenerated charge carriers, which makes it a superior electrode material. Experimental results show that the all-in-one CNW electrodes possess excellent PEC performance with a photocurrent density of 830 μA cm-2. Moreover, the CNW electrodes exhibit excellent photoresponses over a wide waveband and superior stability with a maintained photocurrent response, even after 60 d, which outperforms the electrodes using the other two-dimensional layered materials or semiconductor sensitized electrodes. Such an all-in-one electrode with impressive photovoltaic properties provides a promising platform for PEC applications that is eco-friendly with high efficiency, excellent stability and low cost.
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Affiliation(s)
- Guilian Lan
- Key Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, People's Republic of China. Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, People's Republic of China
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Fang Y, Li Y, Zhou F, Gu P, Liu J, Chen D, Li N, Xu Q, Lu J. An Efficient Photocatalyst Based on Black TiO 2 Nanoparticles and Porous Carbon with High Surface Area: Degradation of Antibiotics and Organic Pollutants in Water. Chempluschem 2020; 84:474-480. [PMID: 31943905 DOI: 10.1002/cplu.201900103] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 04/16/2019] [Indexed: 11/10/2022]
Abstract
Porous carbon (PC) materials with high surface area can separate electron-hole pairs and adsorb organic pollutants more effectively. A series of nanocomposites were prepared by anchoring black TiO2 nanoparticles (BTN) onto PC through a calcination process. Chemical and structural features of samples were examined by X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, powder X-ray diffraction (P-XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses. The resulting adsorption-photocatalysis synergistic effect led to a dramatically improved photocurrent for BTN@PCs, thus indicating the high photocatalytic performance toward water-soluble organic species. For instance, the degradation of tetracycline under visible light reached 90 %, which is higher than that for activated carbon doped onto BTN (57 %) without any additional agents. Moreover, the degradation of other antibiotics (such as oxytetracycline and ciprofloxacin) and methylene blue were also studied, thus showing that this system has the potential to be used for water treatment.
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Affiliation(s)
- Yu Fang
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Yuanyuan Li
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Feng Zhou
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Peiyang Gu
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Jiadi Liu
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Dongyun Chen
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Najun Li
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Qingfeng Xu
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
| | - Jianmei Lu
- Collaborative Innovation Center of Suzhou Nano Science and Technology College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren'ai Road, Suzhou, 215123, P.R. China
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Qiu L, Cui Y, Tan X, Zheng S, Zhang H, Xu J, Wang Q. Construction of Ag3PO4/Ag4P2O7 nanospheres sensitized hierarchical titanium dioxide nanotube mesh for photoelectrocatalytic degradation of methylene blue. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.01.067] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Peng Z, Liu Z, Chen J, Ren Y, Li W, Li C, Chen J. Influence of ZnO nano-array interlayer on the charge transfer performance of quantum dot sensitized solar cells. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.170] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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