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Sun Y, Ahmadi Y, Kim KH. The selection of a nitrogen precursor for the construction of N-doped titanium dioxide with enhanced photocatalytic activity for the removal of gaseous toluene. ENVIRONMENTAL RESEARCH 2024; 260:119664. [PMID: 39048069 DOI: 10.1016/j.envres.2024.119664] [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: 05/20/2024] [Revised: 07/16/2024] [Accepted: 07/21/2024] [Indexed: 07/27/2024]
Abstract
The preparation of nitrogen-doped TiO2 (i.e., N-TiO2) catalysts is a highly effective option to improve the photocatalytic activity of TiO2. Nonetheless, relatively little is known about the effects of dopant precursors selected for their preparation with regard to the photocatalytic efficacy. In this study, three types of dopants are selected and used as N sources (urea (U), melamine (M), and aqueous ammonia (A)) for N-TiO2 samples with the name codes of NTU, NTM, and NTA, respectively. The photocatalytic efficacy of these N-TiO2 samples is examined against toluene in a packed bed flow reactor. Under optimal conditions (e.g., relative humidity (RH) = 20% and gas hourly space velocity (GHSV) = 1698 h-1), the superiority of NTA is evident over others with a quantum efficiency (QE) of 7.03 × 10-4 molecules photon-1, a space time yield (STY) of 1.38 × 10-4 molecules photon-1 mg-1, and a specific clean air delivery rate (SCADR) of 1148.8 L g-1 h-1. The analysis based on in-situ diffuse reflectance infrared Fourier transform spectroscopy and gas chromatography-mass spectrometry confirms the formation of several intermediates such as benzyl alcohol, benzaldehyde, benzoic acid, and alkane species through ring opening reactions. In addition, the prepared NTA photocatalyst exhibits the highest toluene photocatalytic degradation efficiency among all TiO2-based catalysts surveyed to date. Overall, this study offers as a valuable guideline for the development of advanced TiO2 catalytic systems (such as N-TiO2) for the treatment of aromatic hydrocarbons in indoor air.
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Affiliation(s)
- Yang Sun
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea
| | - Younes Ahmadi
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea.
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2
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Szkoda M, Roda D, Skorupska M, Glazer R, Ilnicka A. Molybdenum sulfide modified with nickel or platinum nanoparticles as an effective catalyst for hydrogen evolution reaction. Sci Rep 2024; 14:17255. [PMID: 39060418 PMCID: PMC11282300 DOI: 10.1038/s41598-024-67252-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
In this study, we investigate the catalytic performance of molybdenum sulfide (MoS2) modified with either nickel (Ni) or platinum (Pt) nanoparticles as catalysts for the hydrogen evolution reaction (HER). The MoS2 was prepared on the TiO2 nanotube substrates via a facile hydrothermal method, followed by the deposition by magnetron sputtering of Ni or Pt nanoparticles on the MoS2 surface. Structural and morphological characterization confirmed the successful incorporation of Ni or Pt nanoparticles onto the MoS2 support. Electrochemical measurements revealed that Ni- and Pt-modified MoS2 catalysts exhibited enhanced HER activity compared to pristine MoS2. Obtained catalysts demonstrated a low onset potential, reduced overpotential, and increased current density, indicating efficient electrocatalytic performance. Furthermore, the Ni or Pt-modified MoS2 catalyst exhibited remarkable stability during prolonged HER operation. The improved catalytic activity can be attributed to the synergistic effect between metal nanoparticles and MoS2, facilitating charge transfer kinetics and promoting hydrogen adsorption and desorption. Incorporating Ni and Pt nanoparticles also provided additional active sites on the MoS2 surface, enhancing the catalytic activity.
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Affiliation(s)
- Mariusz Szkoda
- Faculty of Chemistry, Department of Chemistry and Technology of Functional Materials, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland.
- Advanced Materials Center, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland.
| | - Daria Roda
- Faculty of Chemistry, Department of Chemistry and Technology of Functional Materials, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Malgorzata Skorupska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Toruń, Poland
| | - Rafał Glazer
- Faculty of Chemistry, Department of Chemistry and Technology of Functional Materials, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - Anna Ilnicka
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Toruń, Poland
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Szewczyk J, Iatsunskyi I, Michałowski PP, Załęski K, Lamboux C, Sayegh S, Makhoul E, Cabot A, Chang X, Bechelany M, Coy E. TiO 2/PDA Multilayer Nanocomposites with Exceptionally Sharp Large-Scale Interfaces and Nitrogen Doping Gradient. ACS APPLIED MATERIALS & INTERFACES 2024; 16:10774-10784. [PMID: 38350850 PMCID: PMC10910457 DOI: 10.1021/acsami.3c18935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/15/2024]
Abstract
The evolving field of photocatalysis requires the development of new functional materials, particularly those suitable for large-scale commercial systems. One particularly promising approach is the creation of hybrid organic/inorganic materials. Despite being extensively studied, materials such as polydopamine (PDA) and titanium oxide continue to show significant promise for use in such applications. Nitrogen-doped titanium oxide and free-standing PDA films obtained at the air/water interface are particularly interesting. This study introduces a straightforward and reproducible approach for synthesizing a novel class of large-scale multilayer nanocomposites. The method involves the alternate layering of high-quality materials at the air/water interface combined with precise atomic layer deposition techniques, resulting in a gradient nitrogen doping of titanium oxide layers with exceptionally sharp oxide/polymer interfaces. The analysis confirmed the presence of nitrogen in the interstitial and substitutional sites of the TiO2 lattice while maintaining the 2D-like structure of the PDA films. These chemical and structural characteristics translate into a reduction of the band gap by over 0.63 eV and an increase in the photogenerated current by over 60% compared with pure amorphous TiO2. Furthermore, the nanocomposites demonstrate excellent stability during the 1 h continuous photocurrent generation test.
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Affiliation(s)
- Jakub Szewczyk
- NanoBioMedical
Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
- Institut
Européen des Membranes, IEM, UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier
Cedex 5, France
| | - Igor Iatsunskyi
- NanoBioMedical
Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Paweł Piotr Michałowski
- Łukasiewicz
Research Network—Institute of Microelectronics and Photonics, Aleja Lotników 32/46, 02-668 Warsaw, Poland
| | - Karol Załęski
- NanoBioMedical
Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
| | - Cassandre Lamboux
- Institut
Européen des Membranes, IEM, UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier
Cedex 5, France
| | - Syreina Sayegh
- Institut
Européen des Membranes, IEM, UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier
Cedex 5, France
| | - Elissa Makhoul
- Institut
Européen des Membranes, IEM, UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier
Cedex 5, France
| | - Andreu Cabot
- Advanced
Materials Department, Catalonia Institute
for Energy Research (IREC), Sant Adrià de Besòs, 08930 Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Xingqi Chang
- Advanced
Materials Department, Catalonia Institute
for Energy Research (IREC), Sant Adrià de Besòs, 08930 Barcelona, Spain
| | - Mikhael Bechelany
- Institut
Européen des Membranes, IEM, UMR 5635, Univ Montpellier, CNRS, ENSCM Place Eugène Bataillon, 34095 Montpellier
Cedex 5, France
- Gulf University
for Science and Technology, GUST, 32093 Hawally, Kuwait
| | - Emerson Coy
- NanoBioMedical
Centre, Adam Mickiewicz University, Wszechnicy Piastowskiej 3, 61-614 Poznan, Poland
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Chen S, Hu YH. Color TiO 2 Materials as Emerging Catalysts for Visible-NIR Light Photocatalysis, A Review. CATALYSIS REVIEWS 2023. [DOI: 10.1080/01614940.2023.2169451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Shaoqin Chen
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, USA
| | - Yun Hang Hu
- Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan, USA
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He L, Wang Y, Wang C, Liu Z, Xie Z. Pyridinic nitrogen dominated doping on Pd/carbon catalysts for enhanced hydrogenation performance. Front Chem 2022; 10:1046058. [PMID: 36405331 PMCID: PMC9667039 DOI: 10.3389/fchem.2022.1046058] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 10/10/2022] [Indexed: 09/15/2023] Open
Abstract
The hydrogenation of 4-carboxylbenzaldehyde over Pd catalysts is a crucial process during the production of pure terephthalic acid. Herein, ZIF-8 derived carbon materials (NC) with adjustable N types were synthesized and used as the supports of Pd catalysts. Pd supported on NC with 50.5% of pyridinic N exhibited best hydrogenation activity with a TOF value of 4.1 min-1. The microstructures of NC support and electronic structures of Pd in Pd/NC were investigated by techniques such as XRD, N2 physisorption, XPS, H2-O2 titration and TEM. The nitrogen species in CN surface not only can adjust chemical state and dispersion of Pd nanoparticles (NPs), but also promote the adsorption and activation capability of H2 molecular. Besides, the ratio of Pd0/Pd2+ and Pd dispersion were closely correlated with pyridinic nitrogen content. The improvement in hydrogenation activity and stability of Pd/CN catalyst in relative to Pd/C were ascribed to the synergistic effect of pyridinic nitrogen and active site Pd0.
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Affiliation(s)
- Limin He
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC Corp, Shanghai, China
| | - Yangdong Wang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC Corp, Shanghai, China
| | - Can Wang
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC Corp, Shanghai, China
| | - Zhicheng Liu
- State Key Laboratory of Green Chemical Engineering and Industrial Catalysis, Shanghai Research Institute of Petrochemical Technology, SINOPEC Corp, Shanghai, China
| | - Zaiku Xie
- China Petrochemical Corporation (SINOPEC Group), Beijing, China
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Santos JS, Fereidooni M, Marquez V, Arumugam M, Tahir M, Praserthdam S, Praserthdam P. Single-step fabrication of highly stable amorphous TiO 2 nanotubes arrays (am-TNTA) for stimulating gas-phase photoreduction of CO 2 to methane. CHEMOSPHERE 2022; 289:133170. [PMID: 34875298 DOI: 10.1016/j.chemosphere.2021.133170] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/14/2021] [Accepted: 12/02/2021] [Indexed: 06/13/2023]
Abstract
This study investigates the facile fabrication of interfacial defects assisted amorphous TiO2 nanotubes arrays (am-TNTA) for promoting gas-phase CO2 photoreduction to methane. The am-TNTA catalyst was fabricated via a one-step synthesis, without heat treatment, by anodization of Titanium in Ethylene glycol-based electrolyte in a shorter anodizing time. The samples presented a TiO2 nanostructured array with a nanotubular diameter of 100 ± 10 nm, a wall thickness of 26 ± 5 nm, and length of 3.7 ± 0.3 μm, resulting in a specific surface of 0.75 m2 g. The am-TNTA presented prolonged chemical stability, a high exposed surface area, and a large number of surface traps that can reduce the recombination of the charge carriers. The am-TNTA showed promising photoactivity when tested in the CO2 reduction reaction with water under UV irradiation with a methane production rate of 14.0 μmol gcat-1 h-1 for a pure TiO2 material without any modification procedure. This enhanced photocatalytic activity can be explained in terms of surface defects of the amorphous structure, mainly OH groups that can act as electron traps for increasing the electron lifetime. The CO2 interacts directly with those traps, forming carbonate species, which favors the catalytic conversion to methane. The am-TNTA also exhibited a high stability during six reaction cycles. The photocatalytic activity, the significantly reduced time for synthesis, and high stability for continuous CH4 production make this nanomaterial a potential candidate for a sustainable CO2 reduction process and can be employed for other energy applications.
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Affiliation(s)
- Janaina S Santos
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Mohammad Fereidooni
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Victor Marquez
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Malathi Arumugam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Muhammad Tahir
- Chemical and Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates; Chemical Reaction Engineering Group (CREG), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310, UTM, Johor Bahru, Johor, Malaysia
| | - Supareak Praserthdam
- High-Performance Computing Unit (CECC-HCU), Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Chulalongkorn University, Bangkok, 10330, Thailand
| | - Piyasan Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
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Thi Khanh Van N, Dinh NN, Van Chien N, Huy NN, Trung NT, Toan TQ, Van Thanh D. A simple and efficient ultrasonic-assisted electrochemical approach for scalable production of nitrogen-doped TiO 2nanocrystals. NANOTECHNOLOGY 2021; 32:465602. [PMID: 34359057 DOI: 10.1088/1361-6528/ac1b55] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
In this study, we report a facile and effective approach for large-scale production of nitrogen-doped TiO2nanocrystals (UNTs) by a combination of ultrasonic irradiation and electrochemistry at room temperature using NH4NO3electrolyte as the nitrogen source. The as-prepared UNTs were then characterized by x-ray diffraction, Raman spectroscopy, x-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, and UV-visible diffuse reflectance spectroscopy. The results indicated that the nitrogen content of UNTs reached 9.3% and bandgap energy of 2.62 eV, thus gave the high photocatalytic degradation of methylene blue under visible light irradiation. The mechanism for the formation of UNTs by ultrasonic-assisted electrochemical approach was also proposed.
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Affiliation(s)
- Nguyen Thi Khanh Van
- VNU University of Engineering and Technology, Vietnam National University, Hanoi, 144 Xuan Thuy road, Cau Giay, Hanoi, Vietnam
- Institute of Science and Technology, TNU-University of Sciences, Tan Thinh ward, Thai Nguyen City, Vietnam
| | - Nguyen Nang Dinh
- VNU University of Engineering and Technology, Vietnam National University, Hanoi, 144 Xuan Thuy road, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Chien
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi, Vietnam
| | - Nguyen Nhat Huy
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet St., Dist. 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Nguyen Thanh Trung
- Institute of Physics, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi, Vietnam
| | - Tran Quoc Toan
- Faculty of Chemistry, TNU-University of Education, 20 Luong Ngoc Quyen St., Thai Nguyen City, Vietnam
| | - Dang Van Thanh
- VNU University of Engineering and Technology, Vietnam National University, Hanoi, 144 Xuan Thuy road, Cau Giay, Hanoi, Vietnam
- Faculty of Basic Sciences, TNU-University of Medicine and Pharmacy, 284 Luong Ngoc Quyen St., Thai Nguyen City, Vietnam
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Abstract
This article presents an overview of the reports on the doping of TiO2 with carbon, nitrogen, and sulfur, including single, co-, and tri-doping. A comparison of the properties of the photocatalysts synthesized from various precursors of TiO2 and C, N, or S dopants is summarized. Selected methods of synthesis of the non-metal doped TiO2 are also described. Furthermore, the influence of the preparation conditions on the doping mode (interstitial or substitutional) with reference to various types of the modified TiO2 is summarized. The mechanisms of photocatalysis for the different modes of the non-metal doping are also discussed. Moreover, selected applications of the non-metal doped TiO2 photocatalysts are shown, including the removal of organic compounds from water/wastewater, air purification, production of hydrogen, lithium storage, inactivation of bacteria, or carbon dioxide reduction.
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Divyasri YV, Lakshmana Reddy N, Lee K, Sakar M, Navakoteswara Rao V, Venkatramu V, Shankar MV, Gangi Reddy NC. Optimization of N doping in TiO 2 nanotubes for the enhanced solar light mediated photocatalytic H 2 production and dye degradation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116170. [PMID: 33321309 DOI: 10.1016/j.envpol.2020.116170] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 11/01/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
Herein, we report the optimization of nitrogen (N) doping in TiO2 nanotubes to achieve the enhanced photocatalytic efficiencies in degradation of dye and H2 gas evolution under solar light exposure. TiO2 nanotubes have been produced via hydrothermal process and N doping has been tuned by varying the concentration of urea, being the source for N, by solid-state dispersion process. The structural analysis using XRD showed the characteristic occupancy of N into the structure of TiO2 and the XPS studies showed the existence of Ti-N-Ti network in the N-doped TiO2 nanotubes. The obtained TEM images showed the formation of 1D tube-like structure of TiO2. Diffuse reflectance UV-Vis absorption spectra demonstrated that the N-doped TiO2 nanotubes can efficiently absorb the photons of UV-Vis light of the solar light. The optimized N-doped TiO2 nanotubes (TiO2 nanotubes vs urea @ 1:1 ratio) showed the highest degradation efficiency over methyl orange dye (∼91% in 90 min) and showed the highest rate of H2 evolution (∼19,848 μmol h-1.g-1) under solar light irradiation. Further, the recyclability studies indicated the excellent stability of the photocatalyst for the durable use in both the photocatalytic processes. The observed efficiency was ascribed to the optimized doping of N-atoms into the lattices of TiO2, which enhanced the optical properties by forming new energy levels of N atoms near the valence band maximum of TiO2, thereby increased the overall charge separation and recombination resistance in the system. The improved reusability of photocatalyst is attributed to the doping-induced structural stability in N-doped TiO2. From the observed results, it has been recognized that the established strategy could be promising for synthesizing N-doped TiO2 nanotubes with favorable structural, optical and photocatalytic properties towards dye degradation and hydrogen production applications.
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Affiliation(s)
| | - Nagappagari Lakshmana Reddy
- Department of Energy Chemical Engineering, School of Nano & Materials Science and Engineering, Kyungpook National University, 2559 Gyeongsang-daero, 37224, Sangju, Republic of Korea
| | - Kiyoung Lee
- Department of Energy Chemical Engineering, School of Nano & Materials Science and Engineering, Kyungpook National University, 2559 Gyeongsang-daero, 37224, Sangju, Republic of Korea
| | - M Sakar
- Centre for Nano and Material Sciences, Jain University, Bangalore, 562 112, Karnataka, India
| | - Vempuluru Navakoteswara Rao
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India
| | - Vemula Venkatramu
- Department of Physics, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India; Department of Physics, Krishna University Dr. MRAR PG Centre, Nuzvid, 521 201, Andhra Pradesh, India
| | - Muthukonda Venkatakrishnan Shankar
- Nanocatalysis and Solar Fuels Research Laboratory, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India
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Pisarek M, Krawczyk M, Hołdyński M, Lisowski W. Plasma Nitriding of TiO 2 Nanotubes: N-Doping in Situ Investigations Using XPS. ACS OMEGA 2020; 5:8647-8658. [PMID: 32337428 PMCID: PMC7178339 DOI: 10.1021/acsomega.0c00094] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 03/26/2020] [Indexed: 05/07/2023]
Abstract
The nitrogen doping of titanium dioxide nanotubes (TiO2 NTs) was investigated as a result of well-controlled plasma nitriding of TiO2 NTs at a low temperature. This way of nitrogen doping is proposed as an alternative to chemical/electrochemical methods. The plasma nitriding process was performed in a preparation chamber connected to an X-ray photoelectron spectroscopy (XPS) spectrometer, and the nitrogen-doped TiO2 NTs were next investigated in situ by XPS in the same ultrahigh vacuum (UHV) system. The collected high-resolution (HR) XPS spectra of N 1s, Ti 2p, O 1s, C 1s, and valence band (VB) revealed the formation of chemical bonds between titanium, nitrogen, and oxygen atoms as substitutional or interstitial species. Moreover, the results provided a characterization of the electronic states of N-TiO2 NTs generated by various plasma nitriding and annealing treatments. The VB XPS spectrum showed a reduction in the TiO2 band gap of about 0.6 eV for optimal nitriding and heat-treated conditions. The TiO2 NTs annealed at 450 or 650 °C in air (ex situ) and nitrided under UHV conditions were used as reference materials to check the formation of Ti-N bonds in the TiO2 lattice with a well-defined structure (anatase or a mixture of anatase and rutile). Scanning electron microscopy microscopic observations of the received materials were used to evaluate the morphology of the TiO2 NTs after each step of the nitriding and annealing treatments.
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11
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Teodorescu-Soare CT, Catrinescu C, Dobromir M, Stoian G, Arvinte A, Luca D. Growth and characterization of TiO2 nanotube arrays under dynamic anodization. Photocatalytic activity. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.06.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Szkoda M, Nowaczyk G, Lisowska-Oleksiak A, Siuzdak K. The influence of polarization of titania nanotubes modified by a hybrid system made of a conducting polymer PEDOT and Prussian Blue redox network on the Raman spectroscopy response and photoelectrochemical properties. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.05.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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13
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Yi Z, Merenda A, Kong L, Radenovic A, Majumder M, Dumée LF. Single step synthesis of Schottky-like hybrid graphene - titania interfaces for efficient photocatalysis. Sci Rep 2018; 8:8154. [PMID: 29802330 PMCID: PMC5970265 DOI: 10.1038/s41598-018-26447-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 05/08/2018] [Indexed: 11/18/2022] Open
Abstract
The development of 2D nanomaterial coatings across metal surfaces is a challenge due to the mismatch between the metal microstructure and the nanoscale materials. The naturally occurring thin oxidative layer present across all metal surfaces, may lead to low adherence and connectivity. In this paper, graphene/titania/Titanium hybrid films were for the first time fabricated by a single step chemical vapour deposition process across Titanium foils. The presence of graphene as a dopant was found to enhance the photocatalytic performance of the final products, applied to the degradation of organic molecules and to lead to Schottky-like junction formation at the metal/oxide interface. These Schottky junctions, where vacancies are present across the titania material due to the graphene doping and where Ti3+ ions are predominantly located, yield enhanced catalytic performance. The highest degradation rate was found to be 9.66 × 10−6 min−1, achieved by the sample grown at 700 °C for 5 min, which was 62% higher than the sample just treated at that temperature without graphene growth. This work provides evidence that graphene may be grown across pure Titanium metal and opens new avenues in biomedical devices design, tribological or separation applications.
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Affiliation(s)
- Zhifeng Yi
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, 3216, Victoria, Australia
| | - Andrea Merenda
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, 3216, Victoria, Australia
| | - Lingxue Kong
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, 3216, Victoria, Australia
| | - Aleksandra Radenovic
- Ecole Polytechnique Federale de Lausanne (EPFL), Institute of Biotechnology, CH-1015, Lausanne, Switzerland
| | - Mainak Majumder
- Department of Mechanical and Aerospace Engineering, Nanoscale Science and Engineering Laboratory (NSEL), Monash University, Clayton, 3800, Victoria, Australia.,ARC Research Hub for Graphene Enabled Industry Transformation, Monash University, Clayton, Victoria, Australia
| | - Ludovic F Dumée
- Deakin University, Geelong, Institute for Frontier Materials, Waurn Ponds, 3216, Victoria, Australia.
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Omymen WM, Rogan JR, Jugović BZ, Gvozdenović MM, Grgur BN. Photo-assisted electrochemical oxidation of the urea onto TiO 2 -nanotubes modified by hematite. JOURNAL OF SAUDI CHEMICAL SOCIETY 2017. [DOI: 10.1016/j.jscs.2017.05.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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15
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Synthesis and photoelectrochemical behaviour of hydrogenated titania nanotubes modified with conducting polymer infiltrated by redox active network. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.11.102] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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17
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Optimization of boron-doping process of titania nanotubes via electrochemical method toward enhanced photoactivity. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3185-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Ansari SA, Khan MM, Ansari MO, Cho MH. Nitrogen-doped titanium dioxide (N-doped TiO2) for visible light photocatalysis. NEW J CHEM 2016. [DOI: 10.1039/c5nj03478g] [Citation(s) in RCA: 431] [Impact Index Per Article: 53.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Energy level diagrams for undoped and N-doped TiO2 for visible light induced photocatalytic application.
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Affiliation(s)
- Sajid Ali Ansari
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan-si
- Gyeongbuk 712-749
- South Korea
| | - Mohammad Mansoob Khan
- Chemical Sciences
- Faculty of Science
- Universiti Brunei Darussalam
- JalanTungku Link
- Gadong
| | - Mohd Omaish Ansari
- Centre of Nanotechnology
- King Abdulaziz University
- Jeddah 21589
- Saudi Arabia
| | - Moo Hwan Cho
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan-si
- Gyeongbuk 712-749
- South Korea
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19
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Siuzdak K, Szkoda M, Karczewski J, Ryl J, Lisowska-Oleksiak A. Titania nanotubes infiltrated with the conducting polymer PEDOT modified by Prussian blue – a novel type of organic–inorganic heterojunction characterised with enhanced photoactivity. RSC Adv 2016. [DOI: 10.1039/c6ra15113b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A highly ordered p–n heterojunction was formed based on titania nanotubes containing a conducting polymer with Prussian blue matrix.
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Affiliation(s)
- K. Siuzdak
- Centre for Plasma and Laser Engineering
- The Szewalski Institute of Fluid-Flow Machinery
- Polish Academy of Science
- 80-231 Gdańsk
- Poland
| | - M. Szkoda
- Department of Chemistry and Technology of Functional Materials
- Chemical Faculty
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
| | - J. Karczewski
- Faculty of Applied Physics and Mathematics
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
| | - J. Ryl
- Department of Electrochemistry, Corrosion and Materials Engineering
- Chemical Faculty
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
| | - A. Lisowska-Oleksiak
- Department of Chemistry and Technology of Functional Materials
- Chemical Faculty
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
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20
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Siuzdak K, Szkoda M, Lisowska-Oleksiak A, Karczewski J, Ryl J. Highly stable organic–inorganic junction composed of hydrogenated titania nanotubes infiltrated by a conducting polymer. RSC Adv 2016. [DOI: 10.1039/c6ra01986b] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A poly(3,4-ethylenedioxythiophene) conducting polymer doped with poly(2-styrene sulfonate) (pEDOT:PSS) was efficiently electrodeposited on a layer composed of ordered titania nanotubes.
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Affiliation(s)
- Katarzyna Siuzdak
- Centre
- for Plasma and Laser Engineering
- Szewalski Institute of Fluid Flow Machinery
- Polish Academy of Science
- Gdańsk 80-231
| | - Mariusz Szkoda
- Department of Chemistry and Technology of Functional Materials
- Chemical Faculty
- Gdańsk University of Technology
- Gdańsk 80-233
- Poland
| | - Anna Lisowska-Oleksiak
- Department of Chemistry and Technology of Functional Materials
- Chemical Faculty
- Gdańsk University of Technology
- Gdańsk 80-233
- Poland
| | - Jakub Karczewski
- Faculty of Applied Physics and Mathematics
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
| | - Jacek Ryl
- Department of Electrochemistry, Corrosion and Materials Engineering
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
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21
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Gas-generated thermal oxidation of a coordination cluster for an anion-doped mesoporous metal oxide. Sci Rep 2015; 5:18468. [PMID: 26681104 PMCID: PMC4683434 DOI: 10.1038/srep18468] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 11/18/2015] [Indexed: 11/11/2022] Open
Abstract
Central in material design of metal oxides is the increase of surface area and control of intrinsic electronic and optical properties, because of potential applications for energy storage, photocatalysis and photovoltaics. Here, we disclose a facile method, inspired by geochemical process, which gives rise to mesoporous anion-doped metal oxides. As a model system, we demonstrate that simple calcination of a multinuclear coordination cluster results in synchronic chemical reactions: thermal oxidation of Ti8O10(4-aminobenzoate)12 and generation of gases including amino-group fragments. The gas generation during the thermal oxidation of Ti8O10(4-aminobenzoate)12 creates mesoporosity in TiO2. Concurrently, nitrogen atoms contained in the gases are doped into TiO2, thus leading to the formation of mesoporous N-doped TiO2. The mesoporous N-doped TiO2 can be easily synthesized by calcination of the multinuclear coordination cluster, but shows better photocatalytic activity than the one prepared by a conventional sol-gel method. Owing to an intrinsic designability of coordination compounds, this facile synthetic will be applicable to a wide range of metal oxides and anion dopants.
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22
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Szkoda M, Siuzdak K, Lisowska-Oleksiak A. Optimization of electrochemical doping approach resulting in highly photoactive iodine-doped titania nanotubes. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-3081-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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23
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Szkoda M, Siuzdak K, Lisowska-Oleksiak A, Karczewski J, Ryl J. Facile preparation of extremely photoactive boron-doped TiO 2 nanotubes arrays. Electrochem commun 2015. [DOI: 10.1016/j.elecom.2015.09.013] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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24
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Siuzdak K, Szkoda M, Sawczak M, Lisowska-Oleksiak A, Karczewski J, Ryl J. Enhanced photoelectrochemical and photocatalytic performance of iodine-doped titania nanotube arrays. RSC Adv 2015. [DOI: 10.1039/c5ra08407e] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The paper discusses the synthesis and performance of iodine doped titania nanotube arrays exhibited under irradiation.
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Affiliation(s)
- Katarzyna Siuzdak
- Centre of Plasma and Laser Engineering
- Szewalski Institute of Fluid-Flow Machinery
- Polish Academy of Sciences
- Gdańsk 80-231
- Poland
| | - Mariusz Szkoda
- Department of Chemistry and Technology of Functional Materials
- Chemical Faculty
- Gdańsk University of Technology
- Gdańsk 80-233
- Poland
| | - Mirosław Sawczak
- Centre of Plasma and Laser Engineering
- Szewalski Institute of Fluid-Flow Machinery
- Polish Academy of Sciences
- Gdańsk 80-231
- Poland
| | - Anna Lisowska-Oleksiak
- Department of Chemistry and Technology of Functional Materials
- Chemical Faculty
- Gdańsk University of Technology
- Gdańsk 80-233
- Poland
| | - Jakub Karczewski
- Faculty of Applied Physics and Mathematics
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
| | - Jacek Ryl
- Department of Electrochemistry, Corrosion and Materials Engineering
- Gdańsk University of Technology
- 80-233 Gdańsk
- Poland
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