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Nii S, Ueda H, Aono M, Mizuta K, Goshima T. Facile preparation of graphene nitride by irradiating MHz ultrasound. ULTRASONICS SONOCHEMISTRY 2022; 90:106179. [PMID: 36215888 PMCID: PMC9554821 DOI: 10.1016/j.ultsonch.2022.106179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/21/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
The present study aimed at developing a simple sonochemical method to prepare graphene nitride from the mixture of graphite and aqueous ammonia solution. Ultrasound of 1.6 MHz was irradiated to the sample in a fabricated sonoreactor at predetermined ultrasonic power and duration. The one-pot method succeeded in the preparation of graphene nitride. The generation was proven by XPS analysis in finding N1S peak in the spectrum. Detail analysis of N1s peak suggested that the major nitrogen species was pyrrolic type. Furthermore, the presence of CO bond proved the oxidation by OH radical. The reaction product had the value of N/C as high as 0.08, which is comparable to reported values for ultrasonic preparation of graphene nitride. The fact indicates that the significance of chemical effects of MHz range ultrasound, and the finding of the simple preparation method will accelerate practical application of graphene nitride.
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Affiliation(s)
- Susumu Nii
- Dept. Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.
| | - Hiroki Ueda
- Dept. Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Masami Aono
- Dept. Electrical and Electronics Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Kei Mizuta
- Dept. Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
| | - Takashi Goshima
- Dept. Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan
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Wu H, Wang M, Jing F, Kong D, Chen Y, Jia C, Li J. Enhanced photocatalytic hydrogen production performance of pillararene-doped mesoporous TiO2 with extended visible-light response. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.095] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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3
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Preparation of N-TiO2/RGO nanocomposites through sol-gel method. KOREAN J CHEM ENG 2021. [DOI: 10.1007/s11814-021-0843-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Meng H, Liang H, Xu T, Bai J, Li C. Crosslinked electrospinning membranes with contamination resistant properties for highly efficient oil–water separation. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02700-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Li J, Li B, Sui G, Du L, Zhuang Y, Zhang Y, Zou Y. Removal of volatile organic compounds from air using supported ionic liquid membrane containing ultraviolet-visible light-driven Nd-TiO2 nanoparticles. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130023] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Damkale SR, Arbuj SS, Umarji GG, Rane SB, Kale BB. Highly crystalline anatase TiO 2 nanocuboids as an efficient photocatalyst for hydrogen generation. RSC Adv 2021; 11:7587-7599. [PMID: 35423264 PMCID: PMC8694938 DOI: 10.1039/d0ra10750f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/05/2021] [Indexed: 12/25/2022] Open
Abstract
Highly crystalline anatase titanium dioxide (TiO2) nanocuboids were synthesized via a hydrothermal method using ethylenediamine tetraacetic acid as a capping agent. The structural study revealed the nanocrystalline nature of anatase TiO2 nanocuboids. Morphological study indicates the formation of cuboid shaped particles with thickness of ∼5 nm and size in the range of 10-40 nm. The UV-visible absorbance spectra of TiO2 nanocuboids showed a broad absorption with a tail in the visible-light region which is attributed to the incorporation of nitrogen atoms into the interstitial positions of the TiO2 lattice as well as the formation of carbonaceous and carbonate species on the surface of TiO2 nanocuboids. The specific surface areas of prepared TiO2 nanocuboids were found to be in the range of 85.7-122.9 m2 g-1. The formation mechanism of the TiO2 nanocuboids has also been investigated. Furthermore, the photocatalytic activities of the as-prepared TiO2 nanocuboids were evaluated for H2 generation via water splitting under UV-vis light irradiation and compared with the commercial anatase TiO2. TiO2 nanocuboids obtained at 200 °C after 48 h exhibited higher photocatalytic activity (3866.44 μmol h-1 g-1) than that of commercial anatase TiO2 (831.30 μmol h-1 g-1). The enhanced photoactivity of TiO2 nanocuboids may be due to the high specific surface area, good crystallinity, extended light absorption in the visible region and efficient charge separation.
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Affiliation(s)
- Shubhangi R Damkale
- Centre for Materials for Electronics Technology (C-MET) Off Pashan Road, Panchawati Pune-411008 Maharashtra India +912025898180 +912025899273
| | - Sudhir S Arbuj
- Centre for Materials for Electronics Technology (C-MET) Off Pashan Road, Panchawati Pune-411008 Maharashtra India +912025898180 +912025899273
| | - Govind G Umarji
- Centre for Materials for Electronics Technology (C-MET) Off Pashan Road, Panchawati Pune-411008 Maharashtra India +912025898180 +912025899273
| | - Sunit B Rane
- Centre for Materials for Electronics Technology (C-MET) Off Pashan Road, Panchawati Pune-411008 Maharashtra India +912025898180 +912025899273
| | - Bharat B Kale
- Centre for Materials for Electronics Technology (C-MET) Off Pashan Road, Panchawati Pune-411008 Maharashtra India +912025898180 +912025899273
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Meng H, Xu T, Gao M, Bai J, Li C. An oil‐contamination‐resistant
PVP
/
PAN
electrospinning membrane for high‐efficient oil–water mixture and emulsion separation. J Appl Polym Sci 2020. [DOI: 10.1002/app.50043] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Haitao Meng
- Chemical Engineering College Inner Mongolia University of Technology Hohhot Inner Mongolia China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot Inner Mongolia China
| | - Tong Xu
- Chemical Engineering College Inner Mongolia University of Technology Hohhot Inner Mongolia China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot Inner Mongolia China
| | - Mingyuan Gao
- Chemical Engineering College Inner Mongolia University of Technology Hohhot Inner Mongolia China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot Inner Mongolia China
| | - Jie Bai
- Chemical Engineering College Inner Mongolia University of Technology Hohhot Inner Mongolia China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot Inner Mongolia China
| | - Chunping Li
- Chemical Engineering College Inner Mongolia University of Technology Hohhot Inner Mongolia China
- Inner Mongolia Key Laboratory of Industrial Catalysis Hohhot Inner Mongolia China
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Ida S, Wilson P, Neppolian B, Sathish M, Mahammed Shaheer AR, Ravi P. Tuning the type of nitrogen on N-RGO supported on N-TiO 2 under ultrasonication/hydrothermal treatment for efficient hydrogen evolution - A mechanistic overview. ULTRASONICS SONOCHEMISTRY 2020; 64:104866. [PMID: 31983561 DOI: 10.1016/j.ultsonch.2019.104866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 06/10/2023]
Abstract
Efficient hydrogen production through water splitting has been the challenging task to be achieved in the present context of energy crisis. Among the various catalysts employed, nitrogen doped Titanium dioxide/Reduced graphene oxide (N-TiO2/RGO) nanocomposite has been established to be a promising photocatalytic material for this purpose. However, nuances of doping nitrogen on TiO2 and the type of nitrogen (pyridinic, pyrrolic and graphitic) stabilized on RGO responsible for facilitating the H2 production has not yet been addressed mechanistically. In the present investigation, an attempt has been made to synthesise N-Titanium dioxide/N-Reduced graphene oxide (NTNG) nanocomposite under ultrasonication followed by hydrothermal treatment. A stainlesssteel ultrasonic bath, of 6.5 L tank size (LxBxH) 300 × 150 × 150 mm, was used for ultrasonic treatments. The transducers located at the bottom of the ultrasonic bath generate a frequency of 40 kHz with maximum power of 200 W. A mechanism has been proposed including the nuances of formation and the stabilisation of each type of nitrogen on N-RGO as a function of ultrasonication time. The present work supports the stabilization of a given type of nitrogen on RGO through keto enol tautomerism. XPS and FTIR studies have been undertaken to identify the different types of nitrogen doping and the presence of functional groups respectively. XRD, UV-Vis DRS and PL investigations have been made to establish morphological profile and band gap structure of the nanocomposite. It was observed that pyrrolic type nitrogen stabilized on N-RGO augments the efficiency of photocatalytic activity through hydrogen production by water splitting.
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Affiliation(s)
- S Ida
- Department of Chemistry, Madras Christian College (Autonomous), University of Madras, Chennai 600005, Tamil Nadu, India
| | - P Wilson
- Department of Chemistry, Madras Christian College (Autonomous), University of Madras, Chennai 600005, Tamil Nadu, India.
| | - B Neppolian
- SRM Research Institute, SRM University, Kattankulathur, Chennai 603203, Tamil Nadu, India
| | - M Sathish
- Functional Materials Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630003, Tamilnadu, India
| | - A R Mahammed Shaheer
- SRM Research Institute, SRM University, Kattankulathur, Chennai 603203, Tamil Nadu, India
| | - P Ravi
- Functional Materials Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630003, Tamilnadu, India
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Perović K, dela Rosa FM, Kovačić M, Kušić H, Štangar UL, Fresno F, Dionysiou DD, Loncaric Bozic A. Recent Achievements in Development of TiO 2-Based Composite Photocatalytic Materials for Solar Driven Water Purification and Water Splitting. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E1338. [PMID: 32183457 PMCID: PMC7142427 DOI: 10.3390/ma13061338] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 01/20/2023]
Abstract
Clean water and the increased use of renewable energy are considered to be two of the main goals in the effort to achieve a sustainable living environment. The fulfillment of these goals may include the use of solar-driven photocatalytic processes that are found to be quite effective in water purification, as well as hydrogen generation. H2 production by water splitting and photocatalytic degradation of organic pollutants in water both rely on the formation of electron/hole (e-/h+) pairs at a semiconducting material upon its excitation by light with sufficient photon energy. Most of the photocatalytic studies involve the use of TiO2 and well-suited model compounds, either as sacrificial agents or pollutants. However, the wider application of this technology requires the harvesting of a broader spectrum of solar irradiation and the suppression of the recombination of photogenerated charge carriers. These limitations can be overcome by the use of different strategies, among which the focus is put on the creation of heterojunctions with another narrow bandgap semiconductor, which can provide high response in the visible light region. In this review paper, we report the most recent advances in the application of TiO2 based heterojunction (semiconductor-semiconductor) composites for photocatalytic water treatment and water splitting. This review article is subdivided into two major parts, namely Photocatalytic water treatment and Photocatalytic water splitting, to give a thorough examination of all achieved progress. The first part provides an overview on photocatalytic degradation mechanism principles, followed by the most recent applications for photocatalytic degradation and mineralization of contaminants of emerging concern (CEC), such as pharmaceuticals and pesticides with a critical insight into removal mechanism, while the second part focuses on fabrication of TiO2-based heterojunctions with carbon-based materials, transition metal oxides, transition metal chalcogenides, and multiple composites that were made of three or more semiconductor materials for photocatalytic water splitting.
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Affiliation(s)
- Klara Perović
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
| | - Francis M. dela Rosa
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
| | - Marin Kovačić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
| | - Hrvoje Kušić
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
| | - Urška Lavrenčič Štangar
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia;
| | - Fernando Fresno
- Photoactivated Processes Unit, IMDEA Energy, Móstoles, 28935 Madrid, Spain;
| | - Dionysios D. Dionysiou
- Environmental Engineering and Science Program, University of Cincinnati, Cincinnati, OH 45221–0012, USA;
| | - Ana Loncaric Bozic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, HR–10000 Zagreb, Croatia; (K.P.); (F.M.d.R.); (M.K.); (A.L.B.)
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