1
|
Yan J, Zhang C, Wang C, Lu D, Chen S. Syringe Membrane Micro-Solid-Phase Extraction (SPE) with Flexible Titanium(IV) Oxide@Silica Nanofiber Membrane for the Speciation of Te(IV) and Te(VI) with Graphite Furnace Atomic Absorption Spectrometry (GFAAS). ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2087228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Juntao Yan
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chenghao Zhang
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chunlei Wang
- College of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Dengbo Lu
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Shizhong Chen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| |
Collapse
|
2
|
|
3
|
Cao D, Wang A, Yu X, Yin H, Zhang J, Mi B, Gao Z. Room-temperature preparation of TiO 2/graphene composite photoanodes for efficient dye-sensitized solar cells. J Colloid Interface Sci 2021; 586:326-334. [PMID: 33160629 DOI: 10.1016/j.jcis.2020.10.096] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 11/26/2022]
Abstract
Semi-transparent TiO2/graphene photoanodes are prepared at room temperature via an electrophoretic deposition method followed by compression and applied in dye-sensitized solar cells (DSSCs). Compression enhances the power conversion efficiency (PCE) of a DSSC, which constitutes up 18.4 times improvement compared to the uncompressed device. Incorporating graphene into the compressed film further improves the PCE by 28.8%. Simultaneously, compressing and graphene incorporating can greatly increase the film's transmittance at long wavelengths, benefiting to the use of DSSCs as front unit in tandem solar cells. Scanning electron microscopy, porosity measurements, electrochemical impedance spectroscopy and open circuit voltage decay are performed to investigate the mechanisms. It is demonstrated that compressing a film can reduce the porosity and improve the inter-particle connections, which accounts for the increased light transmittance and enhanced PCE. The incorporated graphene can provide extra charge carrier pathway due to its excellent charge transport properties, as well as protect TiO2 nanostructure by preventing film cracking upon pressing due to its good flexibility, thus increases PCE to 6.75%, which, to our best knowledge, is the highest value among DSSCs with room-temperature prepared photoanodes.
Collapse
Affiliation(s)
- Dapeng Cao
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China; Key Laboratory of Flexible Electronics, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), School of Material Science and Engineering, Nanjing University of Posts & Telecommunications, Nanjing, Jiangsu 210023, China.
| | - Anchen Wang
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Xiaohui Yu
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Huiming Yin
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Jingbo Zhang
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Baoxiu Mi
- Key Laboratory for Organic Electronics & Information Displays (KLOEID), Jiangsu Engineering Centre for Plate Displays & Solid State Lighting, and Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Zhiqiang Gao
- Key Laboratory of Flexible Electronics, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), School of Material Science and Engineering, Nanjing University of Posts & Telecommunications, Nanjing, Jiangsu 210023, China.
| |
Collapse
|
4
|
Wang J, Xu H, Huo Y, Wang Y, Dong M. Progress of electrospray and electrospinning in energy applications. NANOTECHNOLOGY 2020; 31:132001. [PMID: 31665706 DOI: 10.1088/1361-6528/ab52bb] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In the promotion of energy strategies to address the global energy crisis, nanotechnology has been successfully used to generate novel energy materials with excellent characteristics, such as high specific surface area, good flexibility and large porosity. Among the various methods for fabricating nanoscale materials, electrospray and electrospinning technologies have unlocked low-cost, facile and industrial routes to nanotechnology over the past ten years. This review highlights research into the key parts and primary theory of these techniques and their application in preparing energy-related materials and devices: especially fuel cells, solar cells, lithium ion batteries, supercapacitors as well as hydrogen storage systems. The challenges and future prospects of the manufacturing technologies are also covered in this paper.
Collapse
Affiliation(s)
- Junfeng Wang
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, People's Republic of China
| | | | | | | | | |
Collapse
|
5
|
Rahman MYA, Samsuri SAM, Umar AA. Dye-sensitized solar cell utilizing TiO2–sulphur composite photoanode: influence of sulphur precursor content. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0262-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
6
|
Liu W, Shi B, Wang Y, Li Y, Pei H, Guo R, Hou X, Zhu K, Xie J. A Flexible, Binder-Free Graphene Oxide/Copper Sulfides Film for High-Performance Sodium Ion Batteries. ChemistrySelect 2018. [DOI: 10.1002/slct.201800401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wen Liu
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| | - Bin Shi
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| | - Yong Wang
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| | - Yong Li
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| | - Haijuan Pei
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| | - Rui Guo
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| | - Xuwang Hou
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| | - Kai Zhu
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| | - Jingying Xie
- State Key Laboratory of Space Power Technology; Shanghai Institute of Space Power-Sources, No. 2965; Dongchuan Road, Shanghai 200245 (P. R. China
| |
Collapse
|
7
|
Delekar SD, Dhodamani AG, More KV, Dongale TD, Kamat RK, Acquah SFA, Dalal NS, Panda DK. Structural and Optical Properties of Nanocrystalline TiO 2 with Multiwalled Carbon Nanotubes and Its Photovoltaic Studies Using Ru(II) Sensitizers. ACS OMEGA 2018; 3:2743-2756. [PMID: 31458551 PMCID: PMC6641272 DOI: 10.1021/acsomega.7b01316] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 12/25/2017] [Indexed: 05/14/2023]
Abstract
In this study, the in situ sol-gel method has been deployed to prepare the titanium dioxide/multiwalled carbon nanotubes (TiO2/MWCNTs) nanocomposite (NCs) powders with varying content of MWCNTs (0.01-1.0 wt %), to construct the dye-sensitized solar cells (DSSCs). First, binder-free NCs were deposited on a transparent-conducting F:SnO2 (FTO) glass substrate by a doctor-blade technique and then anchored with Ru(II)-based dyes to either N719 or ruthenium phthalocyanine (RuPc). The structural and optical properties and interconnectivity of the materials within the composite are investigated thoroughly by various spectral techniques (XRD, XPS, Raman, FT-IR, and UV-vis), electron microscopy (HRTEM), and BET analysis. The experimental results suggest that the ratio of MWCNTs and TiO2 in NCs, morphology, and their interconnectivity influenced their structural, optical, and photovoltaic properties significantly. Finally, the photovoltaic performances of the assembled DSSCs with different content of MWCNTs to TiO2 films anchored with two different dyes were tested under one sun irradiation (100 mW/cm2). The measured current-voltage (IV) curve and incident photon-to-current conversion efficiency (IPCE) spectra of TiO2/0.1 wt % MWCNTs (T@0.1 C) for N719 dye show three times more power conversion efficiency (η = 6.21%) which is opposed to an efficiency (η = 2.07%) of T@0.1 C for RuPc dye under the same operating conditions.
Collapse
Affiliation(s)
- Sagar D. Delekar
- Department
of Chemistry, Shivaji University, Kolhapur, 416 004 MS, India
- Department
of Chemistry and Biochemistry, Florida State
University, Tallahassee, Florida 30306-4390, United States
- E-mail: (Sagar Delekar)
| | | | - Krantiveer V. More
- Department
of Chemistry, Shivaji University, Kolhapur, 416 004 MS, India
| | - Tukaram D. Dongale
- Computational
Electronics and Nanoscience Research Laboratory, School of Nanoscience
and Biotechnology, Shivaji University, Kolhapur, 416 004 MS, India
| | - Rajanish K. Kamat
- Department
of Electronics, Shivaji University, Kolhapur, 416 004 MS, India
| | - Steve F. A. Acquah
- Department
of Chemistry and Biochemistry, Florida State
University, Tallahassee, Florida 30306-4390, United States
| | - Naresh S. Dalal
- Department
of Chemistry and Biochemistry, Florida State
University, Tallahassee, Florida 30306-4390, United States
| | - Dillip K. Panda
- Department
of Chemistry and Biochemistry, Florida State
University, Tallahassee, Florida 30306-4390, United States
- Department
of Chemistry, Clemson University, Clemson, South Carolina 29634, United States
- E-mail: (Dr. Dillip K. Panda). Tel.: +91-231-2609100. Fax: +91-231-2692333
| |
Collapse
|
8
|
Facile fabrication of flexible SiO2/PANI nanofibers for ammonia gas sensing at room temperature. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.10.065] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
9
|
Song J, Wang X, Yan J, Yu J, Sun G, Ding B. Soft Zr-doped TiO 2 Nanofibrous Membranes with Enhanced Photocatalytic Activity for Water Purification. Sci Rep 2017; 7:1636. [PMID: 28487571 PMCID: PMC5431652 DOI: 10.1038/s41598-017-01969-w] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 04/03/2017] [Indexed: 11/09/2022] Open
Abstract
Self-standing photocatalytic membranes constructed from TiO2 nanofibers hold great promise in environmental remediation; however, challenges still remained for the poor mechanical properties of polycrystalline TiO2 nanofibers. Herein, soft Zr-doped TiO2 (TZ) nanofibrous membranes with robust mechanical properties and enhanced photocatalytic activity were fabricated via electrospinning technique. The Zr4+ incorporation could effectively inhibit the grain growth and reduce the surface defects and breaking point of TiO2 nanofiber. The as-prepared TZ membranes were composed of well-interconnected nanofibers with a high aspect ratios, small grain size and pore size, which exhibited good tensile strength (1.32 MPa) and showed no obvious damage after 200 cycles of bending to a radius of 2 mm. A plausible bending deformation mechanism of the soft TZ membranes was proposed from microscopic single nanofiber to macroscopical membranes. Moreover, the resultant TZ membranes displayed better photocatalytic performance for methylene blue degradation compared to a commercial catalyst (P25), including high degradation degree of 95.4% within 30 min, good reusability in 5 cycles, and easiness of recycling. The successful preparation of such fascinating materials may open up new avenues for the design and development of soft TiO2-based membranes for various application.
Collapse
Affiliation(s)
- Jun Song
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Xueqin Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Jianhua Yan
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China.,Nanofibers Research Center, Modern Textile Institute, Donghua University, Shanghai, 200051, China
| | - Jianyong Yu
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China.,Nanofibers Research Center, Modern Textile Institute, Donghua University, Shanghai, 200051, China
| | - Gang Sun
- Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China. .,Key Laboratory of Textile Science & Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, China. .,Nanofibers Research Center, Modern Textile Institute, Donghua University, Shanghai, 200051, China.
| |
Collapse
|
10
|
Cheng Z, Cheng K, Weng W. SiO 2/TiO 2 Nanocomposite Films on Polystyrene for Light-Induced Cell Detachment Application. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2130-2137. [PMID: 28026924 DOI: 10.1021/acsami.6b14182] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Light-induced cell detachment shows much potential in in vitro cell culture and calls for high-performance light-responsive films. In this study, a smooth and dense SiO2/TiO2 nanocomposite thin film with thickness of around 250 nm was first fabricated on H2O2 treated polystyrene (PS) substrate via a low-temperature sol-gel method. It was observed that the film could well-adhere on the PS surface and the bonding strength became increasingly high with the increase of SiO2 content. The peeling strength and shear strength reached 3.05 and 30.02 MPa, respectively. It was observed the surface of the film could transform into superhydrophilic upon 20 min illumination of ultraviolet with a wavelength of 365 nm (UV365). In cell culture, cells, i.e., NIH3T3 and MC3T3-E1 cells, cultured on SiO2/TiO2 nanocomposite film were easily detached after 10 min of UV365 illumination; the detachment rates reached 90.8% and 88.6%, respectively. Correspondingly, continuous cell sheets with good viability were also easily obtained through the same way. The present work shows that SiO2/TiO2 nanocomposite thin film could be easily prepared on polymeric surface at low temperature. The corresponding film exhibits excellent biocompatibility, high bonding strength, and good light responses. It could be a good candidate for the surface of cell culture utensils with light-induced cell detachment property.
Collapse
Affiliation(s)
- Zhiguo Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center of Sensor Materials and Applications, Zhejiang University , Hangzhou 310027, China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center of Sensor Materials and Applications, Zhejiang University , Hangzhou 310027, China
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Cyrus Tang Center of Sensor Materials and Applications, Zhejiang University , Hangzhou 310027, China
| |
Collapse
|
11
|
Hiltunen A, Lahtonen K, Saari J, Ojanperä A, Sarlin E, Wondraczek H, Efimov A, Kaunisto K, Vivo P, Maccato C, Barreca D, Fardim P, Tkachenko N, Valden M, Lemmetyinen H. Tailored Fabrication of Transferable and Hollow Weblike Titanium Dioxide Structures. Chemphyschem 2017; 18:64-71. [PMID: 27805802 DOI: 10.1002/cphc.201600930] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 10/12/2016] [Indexed: 11/12/2022]
Abstract
The preparation of weblike titanium dioxide thin films by atomic layer deposition on cellulose biotemplates is reported. The method produces a TiO2 web, which is flexible and transferable from the deposition substrate to that of the end application. Removal of the cellulose template by calcination converts the amorphous titania to crystalline anatase and gives the structure a hollow morphology. The TiO2 webs are thoroughly characterized using electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy to give new insight into manufacturing of porous titanium dioxide structures by means of template-based methods. Functionality and integrity of the TiO2 hollow weblike thin films were successfully confirmed by applying them as electrodes in dye-sensitized solar cells.
Collapse
Affiliation(s)
- Arto Hiltunen
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101, Tampere, Finland
| | - Kimmo Lahtonen
- Surface Science Laboratory, Optoelectronics Research Centre, Tampere University of Technology, P.O. Box 692, 33101, Tampere, Finland
| | - Jesse Saari
- Surface Science Laboratory, Optoelectronics Research Centre, Tampere University of Technology, P.O. Box 692, 33101, Tampere, Finland
| | - Anniina Ojanperä
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101, Tampere, Finland
| | - Essi Sarlin
- Department of Materials Science, Tampere University of Technology, P.O. Box 589, 33101, Tampere, Finland
| | - Holger Wondraczek
- Laboratory of Fibre and Cellulose Technology, Åbo Akademi University, Porthansgatan 3, 20500, Turku, Finland
| | - Alexander Efimov
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101, Tampere, Finland
| | - Kimmo Kaunisto
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101, Tampere, Finland
| | - Paola Vivo
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101, Tampere, Finland
| | - Chiara Maccato
- INSTM, Department of Chemistry, Padova University, 35131, Padova, Italy
| | - Davide Barreca
- CNR-ICMATE and INSTM, Department of Chemistry, Padova University, 35131, Padova, Italy
| | - Pedro Fardim
- Laboratory of Fibre and Cellulose Technology, Åbo Akademi University, Porthansgatan 3, 20500, Turku, Finland.,Department of Chemical Engineering, University of Leuven, Celestijnenlaan 200F bus 2424, B-3001, Leuven, Belgium
| | - Nikolai Tkachenko
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101, Tampere, Finland
| | - Mika Valden
- Surface Science Laboratory, Optoelectronics Research Centre, Tampere University of Technology, P.O. Box 692, 33101, Tampere, Finland
| | - Helge Lemmetyinen
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, 33101, Tampere, Finland
| |
Collapse
|
12
|
Li Z, Liu R, Huang Y, Zhou J. Effects of reversed arrangement of electrodes on electrospun nanofibers. J Appl Polym Sci 2016. [DOI: 10.1002/app.44687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhuang Li
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering; Tsinghua University; Beijing 100084 China
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials; Technical Institute of Physics and Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Ruigang Liu
- State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory of Molecular Sciences; Institute of Chemistry, Chinese Academy of Sciences; Beijing 100190 China
| | - Yong Huang
- National Research Center for Engineering Plastics; Technical Institute of Physics and Chemistry Chinese Academy of Sciences; Beijing 100190 China
| | - Ji Zhou
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering; Tsinghua University; Beijing 100084 China
| |
Collapse
|
13
|
Torres Arango MA, Valença de Andrade AS, Cipollone DT, Grant LO, Korakakis D, Sierros KA. Robotic Deposition of TiO2 Films on Flexible Substrates from Hybrid Inks: Investigation of Synthesis-Processing-Microstructure-Photocatalytic Relationships. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24659-24670. [PMID: 27568659 DOI: 10.1021/acsami.6b05535] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
TiO2 is an important material widely used in optoelectronic devices due to its semiconducting and photocatalytic properties, nontoxicity, and chemically inert nature. Some indicative applications include water purification systems and energy harvesting. The use of solution, water-based inks for the direct writing of TiO2 on flexible substrates is of paramount importance since it enables low-cost and low-energy intensive large-area manufacturing, compatible with roll-to-roll processing. In this work we study the effect of crystalline TiO2 and polymer addition on the rheological and direct writing properties of Ti-organic/TiO2 inks. We also report on the bridging crystallite formation from the Ti-organic precursor into the TiO2 crystalline phase, under ultraviolet (UV) exposure or mild heat treatments up to 150 °C. Such crystallite formation is found to be enhanced by polymers with strong polarity and pKα such as polyacrylic acid (PAA). X-ray diffraction (XRD) coupled with Raman and X-ray photoelectron (XPS) spectroscopy are used to investigate the crystalline-phase transformation dependence based on the initial TiO2 crystalline-phase concentration and polymer addition. Transmission electron microscopy imaging and selected area electron diffraction patterns confirm the crystalline nature of such bridging printed structures. The obtained inks are patterned on flexible substrates using nozzle-based robotic deposition, a lithography-free, additive manufacturing technique that allows the direct writing of material in specific, digitally predefined, substrate locations. Photocatalytic degradation of methylene blue solutions highlights the potential of the studied films for chemical degradation applications, from low-cost environmentally friendly materials systems.
Collapse
Affiliation(s)
- Maria A Torres Arango
- Flexible Electronics for Sustainable Technologies Laboratory (FEST), Department of Mechanical & Aerospace Engineering, West Virginia University , 395 Evansdale Drive, Morgantown, West Virginia 26505, United States
| | - Alana S Valença de Andrade
- Flexible Electronics for Sustainable Technologies Laboratory (FEST), Department of Mechanical & Aerospace Engineering, West Virginia University , 395 Evansdale Drive, Morgantown, West Virginia 26505, United States
| | - Domenic T Cipollone
- Flexible Electronics for Sustainable Technologies Laboratory (FEST), Department of Mechanical & Aerospace Engineering, West Virginia University , 395 Evansdale Drive, Morgantown, West Virginia 26505, United States
| | - Lynnora O Grant
- Flexible Electronics for Sustainable Technologies Laboratory (FEST), Department of Mechanical & Aerospace Engineering, West Virginia University , 395 Evansdale Drive, Morgantown, West Virginia 26505, United States
| | - Dimitris Korakakis
- Material Growth and Characterization Lab, Lane Department of Computer Science and Electrical Engineering, West Virginia University , 395 Evansdale Drive, Morgantown, West Virginia 26505, United States
| | - Konstantinos A Sierros
- Flexible Electronics for Sustainable Technologies Laboratory (FEST), Department of Mechanical & Aerospace Engineering, West Virginia University , 395 Evansdale Drive, Morgantown, West Virginia 26505, United States
| |
Collapse
|
14
|
Chen Y, Li A, Yue X, Wang LN, Huang ZH, Kang F, Volinsky AA. Facile fabrication of organic/inorganic nanotube heterojunction arrays for enhanced photoelectrochemical water splitting. NANOSCALE 2016; 8:13228-13235. [PMID: 26926569 DOI: 10.1039/c5nr07893h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Organic/inorganic heterojunction photoanodes are appealing for making concurrent use of the highly photoactive organic semiconductors, and the efficient dielectric screening provided by their inorganic counterparts. In the present work, organic/inorganic nanotube heterojunction arrays composed of TiO2 nanotube arrays and a semiconducting N,N-(dicyclohexyl) perylene-3,4,9,10-tetracarboxylic diimide (PDi) layer were fabricated for photoelectrochemical water splitting. In this arrayed architecture, a PDi layer with a tunable thickness was coated on anodic TiO2 nanotube arrays by physical vapor deposition, which is advantageous for the formation of a uniform layer and an adequate interface contact between PDi and TiO2. The obtained PDi/TiO2 junction exhibited broadened visible light absorption, and an effective interface for enhanced photogenerated electron-hole separation, which is supported by the reduced charge transfer resistance and prolonged excitation lifetime via impedance spectroscopy analysis and fluorescence emission decay investigations. Consequently, such a heterojunction photoanode was photoresponsive to a wide visible light region of 400-600 nm, and thus demonstrated a highly enhanced photocurrent density at 1.23 V vs. a reversible hydrogen electrode. Additionally, the durability of such a photoanode can be guaranteed after long-time illumination because of the geometrical restraint imposed by the PDi aggregates. These results pave the way to discover new organic/inorganic assemblies for high-performance photoelectric applications and device integration.
Collapse
Affiliation(s)
- Yingzhi Chen
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
| | - Aoxiang Li
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
| | - Xiaoqi Yue
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
| | - Lu-Ning Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China.
| | - Zheng-Hong Huang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
| | - Feiyu Kang
- Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
| | - Alex A Volinsky
- Department of Mechanical Engineering, University of South Florida, Tampa, FL 33620, USA
| |
Collapse
|
15
|
Wang X, Xi M, Wang X, Fong H, Zhu Z. Flexible composite felt of electrospun TiO2 and SiO2 nanofibers infused with TiO2 nanoparticles for lithium ion battery anode. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.12.123] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
16
|
Mao X, Zhou R, Zhang S, Ding L, Wan L, Qin S, Chen Z, Xu J, Miao S. High Efficiency Dye-sensitized Solar Cells Constructed with Composites of TiO2 and the Hot-bubbling Synthesized Ultra-Small SnO2 Nanocrystals. Sci Rep 2016; 6:19390. [PMID: 26758941 PMCID: PMC4725357 DOI: 10.1038/srep19390] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 10/07/2015] [Indexed: 11/09/2022] Open
Abstract
An efficient photo-anode for the dye-sensitized solar cells (DSSCs) should have features of high loading of dye molecules, favorable band alignments and good efficiency in electron transport. Herein, the 3.4 nm-sized SnO2 nanocrystals (NCs) of high crystallinity, synthesized via the hot-bubbling method, were incorporated with the commercial TiO2 (P25) particles to fabricate the photo-anodes. The optimal percentage of the doped SnO2 NCs was found at ~7.5% (SnO2/TiO2, w/w), and the fabricated DSSC delivers a power conversion efficiency up to 6.7%, which is 1.52 times of the P25 based DSSCs. The ultra-small SnO2 NCs offer three benefits, (1) the incorporation of SnO2 NCs enlarges surface areas of the photo-anode films, and higher dye-loading amounts were achieved; (2) the high charge mobility provided by SnO2 was confirmed to accelerate the electron transport, and the photo-electron recombination was suppressed by the highly-crystallized NCs; (3) the conduction band minimum (CBM) of the SnO2 NCs was uplifted due to the quantum size effects, and this was found to alleviate the decrement in the open-circuit voltage. This work highlights great contributions of the SnO2 NCs to the improvement of the photovoltaic performances in the DSSCs.
Collapse
Affiliation(s)
- Xiaoli Mao
- School of Electronic Science and Applied Physics, Hefei University of Technology (HFUT), Hefei 230009, China
| | - Ru Zhou
- School of Electronic Science and Applied Physics, Hefei University of Technology (HFUT), Hefei 230009, China
| | - Shouwei Zhang
- School of Electronic Science and Applied Physics, Hefei University of Technology (HFUT), Hefei 230009, China
| | - Liping Ding
- School of Chemistry and Chemical Engineering, HFUT, Hefei, 230009, China
| | - Lei Wan
- School of Electronic Science and Applied Physics, Hefei University of Technology (HFUT), Hefei 230009, China
| | - Shengxian Qin
- School of Electronic Science and Applied Physics, Hefei University of Technology (HFUT), Hefei 230009, China
| | - Zhesheng Chen
- Institut de Minéralogie, de Physique des Matériaux, et de Cosmochimie (IMPMC), Sorbonne Universités-UPMC Univ. Paris 06, Paris 75005, France
| | - Jinzhang Xu
- School of Electronic Science and Applied Physics, Hefei University of Technology (HFUT), Hefei 230009, China
| | - Shiding Miao
- School of Chemistry and Chemical Engineering, HFUT, Hefei, 230009, China
| |
Collapse
|
17
|
Cao P, Zhou G, Ren Y, Xiao H. Fabrication and photoactivity of short rod-shaped mesoporous SiO2@TiO2 composites with TiO2 shell. RSC Adv 2016. [DOI: 10.1039/c5ra18418e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Short rod-shaped mesoporous SiO2@TiO2 composites containing TiO2 shell were prepared using short rod-shaped mesoporous SiO2–PGMA–PEGMA as template and TBT as titanium source.
Collapse
Affiliation(s)
- Pei Cao
- Key Laboratory of Fine Chemicals in Universities of Shandong
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Jinan 250353
- People's Republic of China
| | - Guowei Zhou
- Key Laboratory of Fine Chemicals in Universities of Shandong
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Jinan 250353
- People's Republic of China
| | - Yixian Ren
- Key Laboratory of Fine Chemicals in Universities of Shandong
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Jinan 250353
- People's Republic of China
| | - Hong Xiao
- Key Laboratory of Fine Chemicals in Universities of Shandong
- School of Chemistry and Pharmaceutical Engineering
- Qilu University of Technology
- Jinan 250353
- People's Republic of China
| |
Collapse
|