1
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Sultana S, Darowska I, Pisarek M, Sulka GD, Syrek K. Designing TiO 2 Nanotubular Arrays with Au-CoO x Core-Shell Nanoparticles for Enhanced Photoelectrochemical Methanol and Lignin Oxidation. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 39230475 DOI: 10.1021/acsami.4c07498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
One-dimensional (1D) ordered TiO2 nanotubes exhibit exceptional charge transfer capabilities, making them suitable candidates for constructing visible-light-active photoanodes in selective PEC oxidation reactions. Herein, we employed a facile and easily scalable electrochemical method to fabricate Au-CoOx-deposited ordered TiO2 nanotubular array photoanodes. The improved visible light absorption capacity of TiO2-Au-CoOx, with unhampered 1D channels and the controlled integration of Au between TiO2 and CoOx, along with their synergistic interaction, have been identified as the most promising strategy for enhanced PEC performance, as evidenced by an IPCE of 3.7% at 450 nm. Furthermore, the robust interfacial charge transfer pathway from CoOx to the TiO2 surface via the Au mediator promotes the migration of photogenerated electrons and enables the accumulation of holes on the surface of CoOx. These holes are then efficiently utilized by oxidants such as methanol or lignin to generate value-added products, highlighting the potential of this system for advanced PEC applications.
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Affiliation(s)
- Sabiha Sultana
- Department of Physical Chemistry and Electrochemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Izabela Darowska
- Department of Physical Chemistry and Electrochemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Marcin Pisarek
- Laboratory of Surface Analysis, Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Grzegorz D Sulka
- Department of Physical Chemistry and Electrochemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Karolina Syrek
- Department of Physical Chemistry and Electrochemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
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2
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Kannan K, Chinnaiah K, Gurushankar K, Krishnamoorthi R, Chen YS, Murphin Kumar PS, Li YY. Investigation of the Electrochemical Behavior of CuO-NiO-Co 3O 4 Nanocomposites for Enhanced Supercapacitor Applications. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3976. [PMID: 39203154 PMCID: PMC11355728 DOI: 10.3390/ma17163976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/02/2024] [Accepted: 08/06/2024] [Indexed: 09/03/2024]
Abstract
In the present study, composites incorporating NiO-Co3O4 (NC) and CuO-NiO-Co3O4 (CNC) as active electrode materials were produced through the hydrothermal method and their performance was investigated systematically. The composition, formation, and nanocomposite structure of the fabricated material were characterized by XRD, FTIR, and UV-Vis. The FE-SEM analysis revealed the presence of rod and spherical mixed morphologies. The prepared NC and CNC samples were utilized as supercapacitor electrodes, demonstrating specific capacitances of 262 Fg-1 at a current density of 1 Ag-1. Interestingly, the CNC composite displayed a notable long-term cyclic stability 84.9%, which was observed even after 5000 charge-discharge cycles. The exceptional electrochemical properties observed can be accredited to the harmonious effects of copper oxide addition, the hollow structure, and various metal oxides. This approach holds promise for the development of supercapacitor electrodes. These findings collectively indicate that the hydrothermally synthesized NC and CNC nanocomposites exhibit potential as high-performance electrodes for supercapacitor applications.
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Affiliation(s)
- Karthik Kannan
- Department of Mechanical Engineering, Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chia-Yi 621301, Taiwan;
| | - Karuppaiya Chinnaiah
- Multifunctional Laboratory, International Research Centre, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626126, Tamil Nadu, India; (K.C.); (K.G.)
| | - Krishnamoorthy Gurushankar
- Multifunctional Laboratory, International Research Centre, Kalasalingam Academy of Research and Education, Krishnankoil, Virudhunagar 626126, Tamil Nadu, India; (K.C.); (K.G.)
- Laboratory of Computational Modelling Drugs, Higher Medical and Biological School, South Ural State University, 454080 Chelyabinsk, Russia
| | - Raman Krishnamoorthi
- Pharamaceutics Laboratory, Graduate Institute of National Products, Chang Gung University, Kweishan, Taoyuan 33305, Taiwan;
| | - Yong-Song Chen
- Department of Mechanical Engineering, Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chia-Yi 621301, Taiwan;
| | - Paskalis Sahaya Murphin Kumar
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi 621301, Taiwan; (P.S.M.K.); (Y.-Y.L.)
- Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chia-Yi 621301, Taiwan
| | - Yuan-Yao Li
- Department of Chemical Engineering, National Chung Cheng University, Chia-Yi 621301, Taiwan; (P.S.M.K.); (Y.-Y.L.)
- Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chia-Yi 621301, Taiwan
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3
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Gendo KM, Feyisa Bogale R, Kenasa G. Green Synthesis, Characterization, and Evaluation of Photocatalytic and Antibacterial Activities of Co 3O 4-ZnO Nanocomposites Using Calpurnia aurea Leaf Extract. ACS OMEGA 2024; 9:28354-28371. [PMID: 38973856 PMCID: PMC11223149 DOI: 10.1021/acsomega.4c01595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 06/01/2024] [Accepted: 06/04/2024] [Indexed: 07/09/2024]
Abstract
The green synthesis of transition metal oxide nanocomposites using plant extracts is a new and effective method that avoids the involvement of hazardous chemicals. Nondegradable organic pollutants and antibiotic drug resistance have become serious public health issues worldwide. Hence, the main objective of this study is to synthesize Co3O4-ZnO nanocomposites using Calpurnia aurea leaf extract and evaluate its photocatalytic and antibacterial activities. The green synthesized particles were characterized using UV-vis spectra, Fourier transform infrared spectroscopy, X-ray diffraction techniques, and scanning electron microscopy combined with energy-dispersive X-ray studies. The synthesized particles were found to be crystalline in nature with average crystallite sizes of 23.82, 14.79, 15.99, 16.46, and 21.73 nm. Scanning electron microscopy shows the spherical morphology of Co3O4-ZnO NCs, and energy-dispersive X-ray analysis confirms the formation of highly pure ZnO NPs and Co3O4-ZnO NCs. The photocatalytic activity was performed under natural sunlight using malachite green as an organic dye pollutant. The green synthesized ZnO NPs, Co3O4 NPs, 1:4, 1:3, and 1:2 Co3O4-ZnO NCs showed high degradation efficiency after 60 min of irradiation. The synthetic material showed good potential against Staphylococcus aureus and Escherichia coli, with the highest growth inhibition recorded by 1:2 Co3O4-ZnO NCs. The kinetics study of the photocatalytic degradation was confirmed as pseudo first order, and the possible mechanisms for both photocatalytic and antibacterial activities were clearly determined.
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Affiliation(s)
- Kemal Mohammed Gendo
- Department
of Chemistry, College of Natural and computational Sciences, Wollega University, Nekemte 395, Ethiopia
| | - Raji Feyisa Bogale
- Department
of Chemistry, College of Natural and computational Sciences, Wollega University, Nekemte 395, Ethiopia
| | - Girmaye Kenasa
- Department
of Biology, College of Natural and Computational Sciences, Wollega University, Nekemte 395, Ethiopia
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4
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Chen X, Ma H, Wang R, Wang M, Zhu B, Cong Y, Zhu X, Wang G, Zhang Y. Plasma-assisted assembly of Co 3O 4/TiO 2-NRs for photoelectrocatalytic degradation of bisphenol A in solution and muddy systems. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 340:122876. [PMID: 37931677 DOI: 10.1016/j.envpol.2023.122876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/16/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
Herein, Co3O4/TiO2-NRs electrodes with excellent photoresponse have been prepared via the plasma-assisted modification of Co3O4 on TiO2. With the combination of Co3O4 and TiO2, the composite electrode exhibited a red-shift phenomenon and the absorption of UV and visible light were enhanced to improve the light utilization efficiency. The Mott-Schottky diagram showed that a P-N heterojunction was successfully formed between Co3O4 and TiO2 on the electrode, which inhibited the recombination of electrons and holes, and had a high photocurrent density. In our photoelectrocatalysis (PEC) degradation experiments, the degradation rates of bisphenol A (BPA) by Co3O4/TiO2-NRs electrode in Na2SO4 and simulated seawater system reached 69.44 and 100%, respectively. The important role of ·O2-, ·OH, h+, and active chlorine (Cl·, HClO/ClO-, and Cl2) on the Co3O4/TiO2-NRs electrode during the degradation of BPA in simulated seawater was revealed. In addition, PEC combined with electrokinetic (EK) studies with the Co3O4/TiO2-NRs electrode were used for the degradation of BPA in muddy water, initially expanding the application scope of the PEC performance of the Co3O4/TiO2-NRs electrode for pollutants degradation, and had great potential for the subsequent treatment of muddy water pollutants.
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Affiliation(s)
- Xinwei Chen
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Hao Ma
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Run Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Man Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Binbin Zhu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Yanqing Cong
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Xiayue Zhu
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Guoqin Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou, 310018, China
| | - Yi Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, China; Instrumental Analysis Center of Zhejiang Gongshang University, Hangzhou, 310018, China.
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5
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Biosensor with enhanced photoelectrochemical activity based on heterogeneous Co3O4@C/TiO2 composite with efficient photogenerated carrier separation for chlorpyrifos detection. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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6
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Zhao Y, Zhang H, Hong L, Zou X, Song J, Han R, Chen J, Yu Y, Liu X, Zhao H, Zhang Z. A Multifunctional Dental Resin Composite with Sr-N-Doped TiO 2 and n-HA Fillers for Antibacterial and Mineralization Effects. Int J Mol Sci 2023; 24:ijms24021274. [PMID: 36674788 PMCID: PMC9861335 DOI: 10.3390/ijms24021274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/28/2022] [Accepted: 01/02/2023] [Indexed: 01/11/2023] Open
Abstract
Dental caries, particularly secondary caries, which is the main contributor to dental repair failure, has been the subject of extensive research due to its biofilm-mediated, sugar-driven, multifactorial, and dynamic characteristics. The clinical utility of restorations is improved by cleaning bacteria nearby and remineralizing marginal crevices. In this study, a novel multifunctional dental resin composite (DRC) composed of Sr-N-co-doped titanium dioxide (Sr-N-TiO2) nanoparticles and nano-hydroxyapatite (n-HA) reinforcing fillers with improved antibacterial and mineralization properties is proposed. The experimental results showed that the anatase-phase Sr-N-TiO2 nanoparticles were synthesized successfully. After this, the curing depth (CD) of the DRC was measured from 4.36 ± 0.18 mm to 5.10 ± 0.19 mm, which met the clinical treatment needs. The maximum antibacterial rate against Streptococcus mutans (S. mutans) was 98.96%, showing significant inhibition effects (p < 0.0001), which was experimentally verified to be derived from reactive oxygen species (ROS). Meanwhile, the resin exhibited excellent self-remineralization behavior in an SBF solution, and the molar ratio of Ca/P was close to that of HA. Moreover, the relative growth rate (RGR) of mouse fibroblast L929 indicated a high biocompatibility, with the cytotoxicity level being 0 or I. Therefore, our research provides a suitable approach for improving the antibacterial and mineralization properties of DRCs.
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Affiliation(s)
- Yuanhang Zhao
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Hong Zhang
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
| | - Lihua Hong
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
| | - Xinying Zou
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Jiazhuo Song
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Rong Han
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Jiawen Chen
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Yiyan Yu
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Xin Liu
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Hong Zhao
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Changchun 130021, China
| | - Zhimin Zhang
- Department of Endodontics, School of Dentistry, Jilin University, Changchun 130021, China
- Correspondence:
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7
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Li H, Wang P, Jin E, Lan W, Han C, Wang G, Huang D, Zhang X, Ma H. Constructing Z-scheme NiMoO 4@Co 3O 4 core-shell heterogeneous architectures with prominent photoelectrocatalytic performance toward water purification. CHEMOSPHERE 2023; 312:137261. [PMID: 36400193 DOI: 10.1016/j.chemosphere.2022.137261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 11/03/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Photoelectrocatalysis (PEC) oxidation is an efficient and eco-friendly advanced oxidation process (AOP), which is a hot research topic in the treatment of organic wastewater. The selection of superior photoelectrode materials is the critical factor affecting PEC efficiency and the main challenge in practical application. In this work, novel NiMoO4@Co3O4 hierarchical core-shell heterogeneous photoanodes were prepared through a two-step hydrothermal method and exhibited superior catalytic performance in the degradation of reactive brilliant blue KN-R. The wrapping of NiMoO4 nanosheets on Co3O4 nanowires electrode can enlarge its contact area with electrolyte, enable fast redox reaction and improve the long-term durability. The unique Z-scheme heterojunction structure between the two components ensured the effective separation of photo-generated carriers, facilitating the generation of OH and O2- during the PEC degradation process. The optimal NiMoO4@Co3O4-1.25 hierarchical architecture anode catalyst exhibited the highest removal rate of 83.65% of reactive brilliant blue KN-R in 120 min with long-term stability (∼12000 s) in 1.0 mol·L-1 H2SO4 solution. This report may inspire the design and fabrication of heterostructure photoanode in water purification.
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Affiliation(s)
- Huijun Li
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China
| | - Pengyuan Wang
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China.
| | - Enxi Jin
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China
| | - Wenbo Lan
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China
| | - Chi Han
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China
| | - Guowen Wang
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China
| | - Dezhi Huang
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China
| | - Xinxin Zhang
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China
| | - Hongchao Ma
- School of Light Industry & Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian, 116034, PR China.
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8
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Wen H, Zhao W, Han X. Constructing Co 3O 4/La 2Ti 2O 7 p-n Heterojunction for the Enhancement of Photocatalytic Hydrogen Evolution. NANOMATERIALS 2022; 12:nano12101695. [PMID: 35630919 PMCID: PMC9145759 DOI: 10.3390/nano12101695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 05/11/2022] [Accepted: 05/12/2022] [Indexed: 11/16/2022]
Abstract
Layered perovskite-type semiconductor La2Ti2O7 has attracted lots of attention in photocatalytic hydrogen evolution, due to the suitable energy band position for water splitting, high specific surface area, and excellent physicochemical stability. However, the narrow light absorption range and the low separation efficiency of photogenerated carriers limit its photocatalytic activity. Herein, plate-like La2Ti2O7 with uniform crystal morphology was synthesized in molten NaCl salt. A p-n heterojunction was then constructed through the in situ hydrothermal growth of p-type Co3O4 nanoparticles on the surface of n-type plate-like La2Ti2O7. The effects of Co3O4 loading on photocatalytic hydrogen evolution performance were investigated in detail. The results demonstrate that composite Co3O4/La2Ti2O7 possesses much better photocatalytic activity than the pure component. The composite photocatalyst with 1 wt% Co3O4 exhibits the highest hydrogen evolution rate of 79.73 μmol·g-1·h-1 and a good cycling stability. The photoelectrochemistry characterizations illustrate that the improvement of photocatalytic activity is mainly attributed to both the enhanced light absorption from the Co3O4 ornament and the rapid separation of photogenerated electron-hole pairs driven by the built-in electric field close to the p-n heterojunction. The results may provide further insights into the design of high-efficiency La2Ti2O7-based heterojunctions for photocatalytic hydrogen evolution.
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9
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Guo Q, Song H, Sun M, Yuan X, Su Y, Lv Y. Co 3O 4 modified polymeric carbon nitride for external light-free chlorine activating degradation of organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2022; 429:128193. [PMID: 35086034 DOI: 10.1016/j.jhazmat.2021.128193] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/14/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Advanced oxidation processes (AOPs) activated by chlorine have emerged as a green and efficient strategy for water treatment and have attracted widespread attention. However, most of them require continuous UV radiation during the degradation reaction, which increases the cost and is not conducive to practical application, in some ways. Hererin we proposed an external light-free chlorine activation methodology for the removal of organic pollutants with the assistance of the intrinsic chemiluminescence (CL) in the system. A very interesting phenomenon, 20-fold enhanced CL of Co3O4 nanoparticles modified polymeric carbon nitride (PCN/Co3O4) was observed in the presence of hypochlorous acid (HClO), compared with the pristine PCN nanosheets. Without ultraviolet (UV), even any other light-emitting devices, the strong intrinsic CL in the PCN/Co3O4-HClO system was found to be conducive to chlorine activation degradation of organic pollutants. The inner connection between the CL of the PCN/Co3O4-HClO system and the chlorine-based AOPs was further explored.
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Affiliation(s)
- Qi Guo
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Hongjie Song
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Mingxia Sun
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Xiaohan Yuan
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China
| | - Yingying Su
- Analytical & Testing Center, Sichuan University, Chengdu 610064, China.
| | - Yi Lv
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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10
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Zheng D, Yang J, Zheng Z, Peng M, Chen J, Chen Y, Gao W. A highly sensitive photoelectrochemical biosensor for CEA analysis based on hollow NiS@NiO/TiO2 composite with typal p-n heterostructure. Talanta 2022; 246:123523. [DOI: 10.1016/j.talanta.2022.123523] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/26/2022] [Accepted: 05/01/2022] [Indexed: 11/30/2022]
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11
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Two-Dimensional Porous PdO/Co3O4 Nanocomposites for Highly Effective Photocatalysts Under Visible-Light Exposure. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-021-02217-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Mazierski P, Wilczewska P, Lisowski W, Klimczuk T, Białk-Bielińska A, Zaleska-Medyska A, Siedlecka EM, Pieczyńska A. Ti/TiO 2 nanotubes sensitized PbS quantum dots as photoelectrodes applied for decomposition of anticancer drugs under simulated solar energy. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126751. [PMID: 34343880 DOI: 10.1016/j.jhazmat.2021.126751] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/12/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
One of the challenges in research into photoelectrocatalytic (PEC) degradation of pollutants is finding the appropriate photoanode material, which has a significant impact on the process efficiency. Among all others, photoelectrodes based on an ordered TiO2 nanotube arrays are a promising material due to well-developed surface area and efficient charge separation. To increase the PEC activity of this material, the SILAR method was used to decorate Ti/TiO2 nanotubes by PbS quantum dots (QD). The ifosfamide (IF) degradation rate constants was twice as higher for PbS-Ti/TiO2 (0.0148 min-1) than for Ti/TiO2 (0.0072 min-1). Our research showed the highest efficiency of PEC degradation of drugs using IIIPbS-Ti/TiO2 made with 3 SILAR cycles (PbS QD size mainly 2-4 nm). The 4 and 6 of SILAR cycles resulted in the aggregation of PbS nanoparticles on the Ti/TiO2 surface and decreased IF PEC degradation rate to 0.0043 and 0.0033 min-1, respectively. Research on PEC mechanism has shown that the drugs are degraded mainly by the activity of photogenerated holes and hydroxyl radicals. In addition, the identified drug intermediates made possible to propose a degradation pathways of anticancer drugs and the ecotoxicity test show no inhibition of Lemna minor growth of treated solutions.
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Affiliation(s)
- Paweł Mazierski
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Patrycja Wilczewska
- Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Wojciech Lisowski
- Institute of Physical Chemistry, Polish Academy of Science, Kasprzaka 44/52, 01-244 Warsaw, Poland
| | - Tomasz Klimczuk
- Department of Solid State Physics, Gdansk University of Technology, 80-233 Gdansk, Poland
| | - Anna Białk-Bielińska
- Department of Environmental Analysis, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Adriana Zaleska-Medyska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Ewa M Siedlecka
- Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Aleksandra Pieczyńska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland.
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13
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Zhang T, Han X, Nguyen NT, Yang L, Zhou X. TiO2-based photocatalysts for CO2 reduction and solar fuel generation. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)64045-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Wang M, Zhan Y, Wang H, Zhang C, Li G, Zou L. A photoelectrochemical sensor for glutathione based on Bi 2S 3-modified TiO 2 nanotube arrays. NEW J CHEM 2022. [DOI: 10.1039/d1nj06045g] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A novel photoelectrochemical sensor for the determination of glutathione based on Bi2S3-modified TiO2 nanotube arrays. Under the excitation of visible light, glutathione can be oxidized by the holes created by the Bi2S3/TiO2 NTAs.
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Affiliation(s)
- Mengyan Wang
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yi Zhan
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Hanxiao Wang
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Chi Zhang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Gaiping Li
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Lina Zou
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, P. R. China
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15
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Soleimani M, Ghasemi JB, Badiei A. Black titania; novel researches in synthesis and applications. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2021.109092] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Fragoso J, Barreca D, Bigiani L, Sada C, Lebedev OI, Modin E, Pavlovic I, Sánchez L, Maccato C. Tailored Co 3O 4-Based Nanosystems: Toward Photocatalysts for Air Purification. ACS APPLIED MATERIALS & INTERFACES 2021; 13:44520-44530. [PMID: 34516100 DOI: 10.1021/acsami.1c09921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The adverse effects of NOx (NO + NO2) gases on the environment and human health have triggered the development of sustainable photocatalysts for their efficient removal (De-NOx). In this regard, the present work focuses on supported Co3O4-based nanomaterials fabricated via chemical vapor deposition (CVD), assessed for the first time as photocatalysts for sunlight-activated NO oxidation. A proof-of-principle investigation on the possibility of tailoring material performances by heterostructure formation is explored through deposition of SnO2 or Fe2O3 onto Co3O4 by radio frequency (RF) sputtering. A comprehensive characterization by complementary analytical tools evidences the formation of high-purity columnar Co3O4 arrays with faceted pyramidal tips, conformally covered by very thin SnO2 and Fe2O3 overlayers. Photocatalytic functional tests highlight an appreciable activity for bare Co3O4 systems, accompanied by a high selectivity in NOx conversion to harmless nitrate species. A preliminary evaluation of De-NOx performances for functionalized systems revealed a direct dependence of the system behavior on the chemical composition, SnO2/Fe2O3 overlayer morphology, and charge transfer events between the single oxide constituents. Taken together, the present results can provide valuable guidelines for the eventual implementation of improved photocatalysts for air purification.
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Affiliation(s)
- Javier Fragoso
- Department of Inorganic Chemistry and Chemical Engineering, Córdoba University, 14071 Córdoba, Spain
| | - Davide Barreca
- CNR-ICMATE and INSTM, Department of Chemical Sciences, Padova University, 35131 Padova, Italy
| | - Lorenzo Bigiani
- Department of Chemical Sciences, Padova University and INSTM, 35131 Padova, Italy
| | - Cinzia Sada
- Department of Physics and Astronomy, Padova University and INSTM, 35131 Padova, Italy
| | - Oleg I Lebedev
- Laboratoire CRISMAT, UMR 6508 CNRS/ENSICAEN/UCBN, 14050 Caen, Cedex 4, France
| | - Evgeny Modin
- CIC nanoGUNE BRTA, 20018 Donostia-San Sebastian, Spain
| | - Ivana Pavlovic
- Department of Inorganic Chemistry and Chemical Engineering, Córdoba University, 14071 Córdoba, Spain
| | - Luis Sánchez
- Department of Inorganic Chemistry and Chemical Engineering, Córdoba University, 14071 Córdoba, Spain
| | - Chiara Maccato
- Department of Chemical Sciences, Padova University and INSTM, 35131 Padova, Italy
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17
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Zhang R, van Straaten G, di Palma V, Zafeiropoulos G, van de Sanden MC, Kessels WM, Tsampas MN, Creatore M. Electrochemical Activation of Atomic Layer-Deposited Cobalt Phosphate Electrocatalysts for Water Oxidation. ACS Catal 2021; 11:2774-2785. [PMID: 33842021 PMCID: PMC8025676 DOI: 10.1021/acscatal.0c04933] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/23/2021] [Indexed: 01/08/2023]
Abstract
The development of efficient and stable earth-abundant water oxidation catalysts is vital for economically feasible water-splitting systems. Cobalt phosphate (CoPi)-based catalysts belong to the relevant class of nonprecious electrocatalysts studied for the oxygen evolution reaction (OER). In this work, an in-depth investigation of the electrochemical activation of CoPi-based electrocatalysts by cyclic voltammetry (CV) is presented. Atomic layer deposition (ALD) is adopted because it enables the synthesis of CoPi films with cobalt-to-phosphorous ratios between 1.4 and 1.9. It is shown that the pristine chemical composition of the CoPi film strongly influences its OER activity in the early stages of the activation process as well as after prolonged exposure to the electrolyte. The best performing CoPi catalyst, displaying a current density of 3.9 mA cm-2 at 1.8 V versus reversible hydrogen electrode and a Tafel slope of 155 mV/dec at pH 8.0, is selected for an in-depth study of the evolution of its electrochemical properties, chemical composition, and electrochemical active surface area (ECSA) during the activation process. Upon the increase of the number of CV cycles, the OER performance increases, in parallel with the development of a noncatalytic wave in the CV scan, which points out to the reversible oxidation of Co2+ species to Co3+ species. X-ray photoelectron spectroscopy and Rutherford backscattering measurements indicate that phosphorous progressively leaches out the CoPi film bulk upon prolonged exposure to the electrolyte. In parallel, the ECSA of the films increases by up to a factor of 40, depending on the initial stoichiometry. The ECSA of the activated CoPi films shows a universal linear correlation with the OER activity for the whole range of CoPi chemical composition. It can be concluded that the adoption of ALD in CoPi-based electrocatalysis enables, next to the well-established control over film growth and properties, to disclose the mechanisms behind the CoPi electrocatalyst activation.
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Affiliation(s)
- Ruoyu Zhang
- Department
of Applied Physics, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
- DIFFER
- Dutch Institute For Fundamental Energy Research, De Zaale 20, 5612 AJ Eindhoven, The Netherlands
| | - Gerben van Straaten
- Department
of Applied Physics, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Valerio di Palma
- Department
of Applied Physics, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Georgios Zafeiropoulos
- DIFFER
- Dutch Institute For Fundamental Energy Research, De Zaale 20, 5612 AJ Eindhoven, The Netherlands
| | - Mauritius C.M. van de Sanden
- Department
of Applied Physics, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
- DIFFER
- Dutch Institute For Fundamental Energy Research, De Zaale 20, 5612 AJ Eindhoven, The Netherlands
| | - Wilhelmus M.M. Kessels
- Department
of Applied Physics, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
| | - Mihalis N. Tsampas
- DIFFER
- Dutch Institute For Fundamental Energy Research, De Zaale 20, 5612 AJ Eindhoven, The Netherlands
| | - Mariadriana Creatore
- Department
of Applied Physics, Eindhoven University
of Technology, 5600 MB Eindhoven, The Netherlands
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18
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Yu Z, Liu H, Zhu M, Li Y, Li W. Interfacial Charge Transport in 1D TiO 2 Based Photoelectrodes for Photoelectrochemical Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e1903378. [PMID: 31657147 DOI: 10.1002/smll.201903378] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 09/30/2019] [Indexed: 05/08/2023]
Abstract
1D nanostructured photoelectrodes are promising for application as photoelectrochemical (PEC) devices for solar energy conversion into hydrogen (H2 ) owing to the optical, structural, and electronic advantages. Titanium dioxide (TiO2 ) is the most investigated candidate as a photoelectrode due to its good photostability, low production cost, and eco-friendliness. The obstacle for TiO2 's practical application is the inherent wide bandgap (UV-lights response), poor conductivity, and limited hole diffusion length. Here, a comprehensive review of the current research efforts toward the development of 1D TiO2 based photoelectrodes for heterogeneous PEC water splitting is provided along with a discussion of nanoarchitectures and energy band engineering influences on interfacial charge transfer and separation of 1D TiO2 composited with different dimensional photoactive materials. The key focus of this review is to understand the charge transfer processes at interfaces and the relationship between photogenerated charge separation and photoelectrochemical performance. It is anticipated that this review will afford enriched information on the rational designs of nanoarchitectures, doping, and heterojunction interfaces for 1D TiO2 based photoelectrodes to achieve highly efficient solar energy conversion.
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Affiliation(s)
- Zhongrui Yu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Haobo Liu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Mingyuan Zhu
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Ying Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
| | - Wenxian Li
- Institute of Materials, School of Materials Science and Engineering/Institute for Sustainable Energy, Shanghai University, Shanghai, 200444, China
- Shanghai Key Laboratory of High Temperature Superconductors, Shanghai, 200444, China
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19
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Sarraf M, Nasiri-Tabrizi B, Yeong CH, Madaah Hosseini HR, Saber-Samandari S, Basirun WJ, Tsuzuki T. Mixed oxide nanotubes in nanomedicine: A dead-end or a bridge to the future? CERAMICS INTERNATIONAL 2021; 47:2917-2948. [PMID: 32994658 PMCID: PMC7513735 DOI: 10.1016/j.ceramint.2020.09.177] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 05/12/2023]
Abstract
Nanomedicine has seen a significant rise in the development of new research tools and clinically functional devices. In this regard, significant advances and new commercial applications are expected in the pharmaceutical and orthopedic industries. For advanced orthopedic implant technologies, appropriate nanoscale surface modifications are highly effective strategies and are widely studied in the literature for improving implant performance. It is well-established that implants with nanotubular surfaces show a drastic improvement in new bone creation and gene expression compared to implants without nanotopography. Nevertheless, the scientific and clinical understanding of mixed oxide nanotubes (MONs) and their potential applications, especially in biomedical applications are still in the early stages of development. This review aims to establish a credible platform for the current and future roles of MONs in nanomedicine, particularly in advanced orthopedic implants. We first introduce the concept of MONs and then discuss the preparation strategies. This is followed by a review of the recent advancement of MONs in biomedical applications, including mineralization abilities, biocompatibility, antibacterial activity, cell culture, and animal testing, as well as clinical possibilities. To conclude, we propose that the combination of nanotubular surface modification with incorporating sensor allows clinicians to precisely record patient data as a critical contributor to evidence-based medicine.
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Key Words
- ALP, Alkaline Phosphatase
- APH, Anodization-Cyclic Precalcification-Heat Treatment
- Ag2O NPs, Silver Oxide Nanoparticles
- AgNPs, Silver Nanoparticles
- Anodization
- BIC, Bone-Implant Contact
- Bioassays
- CAGR, Compound Annual Growth Rate
- CT, Computed Tomography
- DMF, Dimethylformamide
- DMSO, Dimethyl Sulfoxide
- DRI, Drug-Releasing Implants
- E. Coli, Escherichia Coli
- ECs, Endothelial Cells
- EG, Ethylene Glycol
- Electrochemistry
- FA, Formamide
- Fe2+, Ferrous Ion
- Fe3+, Ferric Ion
- Fe3O4, Magnetite
- GEP, Gene Expression Programming
- GO, Graphene Oxide
- HA, Hydroxyapatite
- HObs, Human Osteoblasts
- HfO2 NTs, Hafnium Oxide Nanotubes
- IMCs, Intermetallic Compounds
- LEDs, Light emitting diodes
- MEMS, Microelectromechanical Systems
- MONs, Mixed Oxide Nanotubes
- MOPSO, Multi-Objective Particle Swarm Optimization
- MSCs, Mesenchymal Stem Cells
- Mixed oxide nanotubes
- NMF, N-methylformamide
- Nanomedicine
- OPC1, Osteo-Precursor Cell Line
- PSIs, Patient-Specific Implants
- PVD, Physical Vapor Deposition
- RF, Radio-Frequency
- ROS, Radical Oxygen Species
- S. aureus, Staphylococcus Aureus
- S. epidermidis, Staphylococcus Epidermidis
- SBF, Simulated Body Fluid
- TiO2 NTs, Titanium Dioxide Nanotubes
- V2O5, Vanadium Pentoxide
- VSMCs, Vascular Smooth Muscle Cells
- XPS, X-ray Photoelectron Spectroscopy
- ZrO2 NTs, Zirconium Dioxide Nanotubes
- hASCs, Human Adipose-Derived Stem Cells
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Affiliation(s)
- Masoud Sarraf
- Centre of Advanced Materials, Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
- Materials Science and Engineering Department, Sharif University of Technology, P.O. Box 11155-9466, Azadi Avenue, Tehran, Iran
| | - Bahman Nasiri-Tabrizi
- School of Biosciences, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
- New Technologies Research Center, Amirkabir University of Technology, Tehran, Iran
| | - Chai Hong Yeong
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | - Hamid Reza Madaah Hosseini
- Materials Science and Engineering Department, Sharif University of Technology, P.O. Box 11155-9466, Azadi Avenue, Tehran, Iran
| | | | - Wan Jefrey Basirun
- Department of Chemistry, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Takuya Tsuzuki
- Research School of Electrical Energy and Materials Engineering, College of Engineering and Computer Science, Australian National University, Canberra, 2601, Australia
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20
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Hydrothermal Synthesis of FeOOH and Fe2O3 Modified Self-Organizing Immobilized TiO2 Nanotubes for Photocatalytic Degradation of 1H-Benzotriazole. Catalysts 2020. [DOI: 10.3390/catal10121371] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study, titanium dioxide nanotubes were prepared by electrochemical anodization technique and modified with an aqueous solution of FeCl3 using hydrothermal synthesis method to control the amount and distribution of iron compounds on the anatase TiO2 nanotubes. The objective was to synthesize immobilized FeOOH@TiO2 or Fe2O3@TiO2 photocatalysts designed for the flow-through reactor systems; to investigate thermal treatment effect on the photocatalytic efficiency; to determine appropriate Fe-compounds concentration for the maximum photocatalytic activity improvement, and to explain the mechanism responsible for the enhancement. The photocatalysts were tested for the degradation of 1H-benzotriazole in water under UV/solar light irradiation. Up to two times increase in the photocatalytic activity was obtained when TiO2 nanotubes were modified with 0.8 mM Fe. At higher Fe concentrations (8 mM and 80 mM), the photocatalytic activity of the given photocatalysts decreased. To confirm the formation of FeOOH or Fe2O3 species, and to clarify the mechanism of photoactivity, X-ray diffraction (XRD), Raman spectroscopy (RS), Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray spectroscopy (EDS) and UV-Vis spectroscopy were used.
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21
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Cai J, Zhou M, Xu X, Du X. Stable boron and cobalt co-doped TiO 2 nanotubes anode for efficient degradation of organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122723. [PMID: 32344364 DOI: 10.1016/j.jhazmat.2020.122723] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 04/09/2020] [Accepted: 04/10/2020] [Indexed: 06/11/2023]
Abstract
Anode materials are crucial to anodic oxidation for wastewater treatment. In this regard, stable boron and cobalt co-doped TiO2 nanotube (B, Co-TNT) was prepared for the first time, and its lifetime was found increased significantly while electrocatalytic activity decreased with the increase of Co(NO3)2 in preparation from 1 to 10 mM. Characterized by scanning electron microscope (SEM), X-Ray Diffraction (XRD) and X-ray Photo-electronic Spectroscopy (XPS), B and Co content were optimized and successfully doped on TNT, which was more smooth without ripple with Co content of 0.038 mg/cm2 in a valence of +2, and B atomic content of 2.17 at.% in form of Ti-B-O. This optimized anode enhanced electrode lifetime 122.8 times while the electrochemical activity decreased slightly when compared to the undoped TNT. The effects of current density, initial pH and initial 2,4-dichlorophenoxyacetic acid (2,4-D) concentration were investigated, and the mainly responsible radical for degradation was confirmed to be the surface OH on B, Co-TNT anode. This anode had better performance on the TOC removal, mineralization current density (MCE) and energy consumption (Ec) when compared with BDD, PbO2, DSA and Pt anodes, and it also presented a very stable degradation for 10 cycles oxidation of 20 mg/L 2,4-D with allowable Co leaching. Therefore, B, Co-TNT anode is a promising, stable, safety and cost-effective anode for application in electrochemical advanced oxidation processes (EAOPs).
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Affiliation(s)
- Jingju Cai
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
| | - Xin Xu
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Xuedong Du
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University, Tianjin 300350, China; Tianjin Key Laboratory of Urban Ecology Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
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22
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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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23
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Gao J, Zhao L, Wang Y, Pan G, Wang Y, LI Y. Ultrathin alumina wrapped TiO2 nanorods for enhance photoelectrochemical performance via atomic layer deposition method. Chem Phys 2020. [DOI: 10.1016/j.chemphys.2020.110791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Cobalt-based metal-organic frameworks promoting magnesium sulfite oxidation with ultrahigh catalytic activity and stability. J Colloid Interface Sci 2020; 559:88-95. [DOI: 10.1016/j.jcis.2019.10.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/13/2019] [Accepted: 10/02/2019] [Indexed: 01/03/2023]
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25
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Zhang Y, Yuan C, Wang Q, Hoffmann MR, Zhang X, Nie J, Hu C, Chen S, Qiao J, Wang Q, Cong Y. Photoelectrochemical activity of CdS/Ag/TiO2 nanorod composites: Degradation of nitrobenzene coupled with the concomitant production of molecular hydrogen. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.135124] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Two-dimensional TiO2-g-C3N4 with both Ti N and C O bridges with excellent conductivity for synergistic photoelectrocatalytic degradation of bisphenol A. J Colloid Interface Sci 2019; 557:227-235. [DOI: 10.1016/j.jcis.2019.08.088] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/04/2019] [Accepted: 08/24/2019] [Indexed: 11/30/2022]
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27
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Current progress in developing metal oxide nanoarrays-based photoanodes for photoelectrochemical water splitting. Sci Bull (Beijing) 2019; 64:1348-1380. [PMID: 36659664 DOI: 10.1016/j.scib.2019.07.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 06/27/2019] [Accepted: 07/03/2019] [Indexed: 01/21/2023]
Abstract
Solar energy driven photoelectrochemical (PEC) water splitting is a clean and powerful approach for renewable hydrogen production. The design and construction of metal oxide based nanoarray photoanodes is one of the promising strategies to make the continuous breakthroughs in solar to hydrogen conversion efficiency of PEC cells owing to their owned several advantages including enhanced reactive surface at the electrode/electrolyte interface, improved light absorption capability, increased charge separation efficiency and direct electron transport pathways. In this Review, we first introduce the structure, work principle and their relevant efficiency calculations of a PEC cell. We then give a summary of the state-of the-art research in the preparation strategies and growth mechanism for the metal oxide based nanoarrays, and some details about the performances of metal oxide based nanoarray photoanodes for PEC water splitting. Finally, we discuss key aspects which should be addressed in continued work on realizing high-efficiency metal oxide based nanoarray photoanodes for PEC solar water splitting systems.
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28
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Arvand M, Sayyar S, Hemmati S. Visible-light-driven polydopamine/CdS QDs hybrid materials with synergistic photocatalytic activity. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113288] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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29
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Zhao X, Jin Y, Xiang C, Jin J, Ding M, Wu S, Jia C, Sun L. Conformal Filling of TiO
2
Nanotubes with Dense M
x
S
y
Films for 3D Heterojunctions: The Anion Effect. ChemElectroChem 2019. [DOI: 10.1002/celc.201801380] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaoli Zhao
- State Key Laboratory of Mechanical Transmission, School of Materials Science and EngineeringChongqing University Chongqing 400044 PR China
| | - Yu Jin
- State Key Laboratory of Mechanical Transmission, School of Materials Science and EngineeringChongqing University Chongqing 400044 PR China
| | - Chengjie Xiang
- State Key Laboratory of Mechanical Transmission, School of Materials Science and EngineeringChongqing University Chongqing 400044 PR China
| | - Jian Jin
- State Key Laboratory of Mechanical Transmission, School of Materials Science and EngineeringChongqing University Chongqing 400044 PR China
| | - Mei Ding
- College of Materials Science and EngineeringChangsha University of Science & Technology Changsha 410114 PR China
| | - Sujuan Wu
- State Key Laboratory of Mechanical Transmission, School of Materials Science and EngineeringChongqing University Chongqing 400044 PR China
| | - Chuankun Jia
- College of Materials Science and EngineeringChangsha University of Science & Technology Changsha 410114 PR China
- National Engineering Laboratory of Highway Maintenance TechnologyChangsha University of Science & Technology Changsha 410114 PR China
| | - Lidong Sun
- State Key Laboratory of Mechanical Transmission, School of Materials Science and EngineeringChongqing University Chongqing 400044 PR China
- National Engineering Laboratory of Highway Maintenance TechnologyChangsha University of Science & Technology Changsha 410114 PR China
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30
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Li C, Chen Z, Yuan W, Xu QH, Li CM. In situ growth of α-Fe 2O 3@Co 3O 4 core-shell wormlike nanoarrays for a highly efficient photoelectrochemical water oxidation reaction. NANOSCALE 2019; 11:1111-1122. [PMID: 30574647 DOI: 10.1039/c8nr07041e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Photoelectrochemical (PEC) water splitting represents a promising strategy to convert solar energy into chemical energy in the form of hydrogen, but its performance is severely limited by the sluggish water oxidation reaction. Herein, for the first time, we report the direct assembly of an ultrathin, uniform, and dense layer of Co3O4 on wormlike nanostructured hematite (WN-α-Fe2O3) to form a large-area and high-density WN-α-Fe2O3@Co3O4 core-shell nanoarray via in situ hydrothermal growth followed by calcination, in which the electrostatic force between WN-α-Fe2O3 and the reactants, pH- and temperature-controlled structures of WN-α-Fe2O3, and ultralow nucleation rate of Co3O4 precursors all play critical roles. The obtained heteronanostructure array shows a photocurrent density of 3.48 mA cm-2, which is 4.05 times higher than that of pristine WN-α-Fe2O3 (0.86 mA cm-2), an onset potential of ∼0.62 V, 60 mV lower than that of α-Fe2O3 (∼0.68 V), and a photoconversion efficiency of 0.55%, 3.93 times higher than that of WN-α-Fe2O3 (0.14%). This is among the highest performances reported for Fe2O3-based photoanodes for water splitting. It is discovered that the Co3O4 shells can significantly enhance the charge separation, accelerate the charge transport and transfer, and reduce the charge transfer resistance from the photoelectrode to the electrolyte for a fast water oxidation reaction, thereby greatly promoting the PEC water oxidation performance of pristine WN-α-Fe2O3. This work not only creates a novel low-cost and Earth-abundant WN-α-Fe2O3@Co3O4 photoelectrode with superior PEC water oxidation performance and provides scientific insights into the enhancement mechanism, but also offers a general strategy for the in situ growth of water oxidation catalysts on various photoelectrodes with 3-D complex geometries for PEC water splitting.
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Affiliation(s)
- Chunmei Li
- Institute for Clean energy & Advanced Materials, Faculty of Materials & Energy, Southwest University, Chongqing 400715, China.
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A self-powered photoelectrochemical glucose biosensor based on supercapacitor Co3O4-CNT hybrid on TiO2. Biosens Bioelectron 2018; 119:34-41. [DOI: 10.1016/j.bios.2018.07.049] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/24/2018] [Accepted: 07/25/2018] [Indexed: 12/31/2022]
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Zazpe R, Sopha H, Prikryl J, Krbal M, Mistrik J, Dvorak F, Hromadko L, Macak JM. A 1D conical nanotubular TiO 2/CdS heterostructure with superior photon-to-electron conversion. NANOSCALE 2018; 10:16601-16612. [PMID: 30152830 PMCID: PMC6137607 DOI: 10.1039/c8nr02418a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 05/23/2018] [Indexed: 06/01/2023]
Abstract
Herein, a new strategy to efficiently harvest photons in solar cells is presented. A solar cell heterostructure is put forward, based on a 1D conical TiO2 nanotubular scaffold of high aspect ratio, homogenously coated with a thin few nm layer of CdS light absorber using atomic layer deposition (ALD). For the first time, a large variety of conical nanotube layers with a huge span of aspect ratios was utilized and ALD was used for the preparation of a uniform CdS coating within the entire high surface area of the TiO2 nanotubes. The resulting 1D conical CdS/TiO2 tubular heterostructure acts as a sink for photons. Due to the multiple light scattering and absorption events within this nanotubular sink, a large portion of photons (nearly 80%) is converted into electrons. It is the combination of the scaffold architecture and the light absorber present on the high surface area as a very thin layer, the optimized charge transport and multiple optical effects that make this heterostructure very promising for the next generation of highly performing solar cells.
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Affiliation(s)
- R. Zazpe
- Center of Materials and Nanotechnologies
, Faculty of Chemical Technology
, University of Pardubice
,
Nam. Cs. Legii 565
, 530 02 Pardubice
, Czech Republic
.
- Central European Institute of Technology
, Brno University of Technology
,
Purkynova 123
, Brno
, Czech Republic
| | - H. Sopha
- Center of Materials and Nanotechnologies
, Faculty of Chemical Technology
, University of Pardubice
,
Nam. Cs. Legii 565
, 530 02 Pardubice
, Czech Republic
.
- Central European Institute of Technology
, Brno University of Technology
,
Purkynova 123
, Brno
, Czech Republic
| | - J. Prikryl
- Center of Materials and Nanotechnologies
, Faculty of Chemical Technology
, University of Pardubice
,
Nam. Cs. Legii 565
, 530 02 Pardubice
, Czech Republic
.
| | - M. Krbal
- Center of Materials and Nanotechnologies
, Faculty of Chemical Technology
, University of Pardubice
,
Nam. Cs. Legii 565
, 530 02 Pardubice
, Czech Republic
.
| | - J. Mistrik
- Center of Materials and Nanotechnologies
, Faculty of Chemical Technology
, University of Pardubice
,
Nam. Cs. Legii 565
, 530 02 Pardubice
, Czech Republic
.
| | - F. Dvorak
- Center of Materials and Nanotechnologies
, Faculty of Chemical Technology
, University of Pardubice
,
Nam. Cs. Legii 565
, 530 02 Pardubice
, Czech Republic
.
| | - L. Hromadko
- Center of Materials and Nanotechnologies
, Faculty of Chemical Technology
, University of Pardubice
,
Nam. Cs. Legii 565
, 530 02 Pardubice
, Czech Republic
.
| | - J. M. Macak
- Center of Materials and Nanotechnologies
, Faculty of Chemical Technology
, University of Pardubice
,
Nam. Cs. Legii 565
, 530 02 Pardubice
, Czech Republic
.
- Central European Institute of Technology
, Brno University of Technology
,
Purkynova 123
, Brno
, Czech Republic
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Patel M, Kim J. Thickness-dependent photoelectrochemical properties of a semitransparent Co 3O 4 photocathode. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:2432-2442. [PMID: 30254838 PMCID: PMC6142771 DOI: 10.3762/bjnano.9.228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
Co3O4 has been widely studied as a catalyst when coupled with a photoactive material during hydrogen production using water splitting. Here, we demonstrate a photoactive spinel Co3O4 electrode grown by the Kirkendall diffusion thermal oxidation of Co nanoparticles. The thickness-dependent structural, physical, optical, and electrical properties of Co3O4 samples are comprehensively studied. Our analysis shows that two bandgaps of 1.5 eV and 2.1 eV coexist with p-type conductivity in porous and semitransparent Co3O4 samples, which exhibit light-induced photocurrent in photoelectrochemical cells (PEC) containing the alkaline electrolyte. The thickness-dependent properties of Co3O4 related to its use as a working electrode in PEC cells are extensively studied and show potential for the application in water oxidation and reduction processes. To demonstrate the stability, an alkaline cell was composed for the water splitting system by using two Co3O4 photoelectrodes. The oxygen gas generation rate was obtained to be 7.17 mL·h-1 cm-1. Meanwhile, hydrogen gas generation rate was almost twice of 14.35 mL·h-1·cm-1 indicating the stoichiometric ratio of 1:2. We propose that a semitransparent Co3O4 photoactive electrode is a prospective candidate for use in PEC cells via heterojunctions for hydrogen generation.
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Affiliation(s)
- Malkeshkumar Patel
- Department of Electrical Engineering, Incheon National University, 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of Korea
- Photoelectric and Energy Device Application Lab (PEDAL), Multidisciplinary Core Institute for Future Energies (MCIFE), Incheon National University, 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of Korea
| | - Joondong Kim
- Department of Electrical Engineering, Incheon National University, 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of Korea
- Photoelectric and Energy Device Application Lab (PEDAL), Multidisciplinary Core Institute for Future Energies (MCIFE), Incheon National University, 119 Academy Rd. Yeonsu, Incheon, 22012, Republic of Korea
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Piao JY, Liu XC, Wu J, Yang W, Wei Z, Ma J, Duan SY, Lin XJ, Xu YS, Cao AM, Wan LJ. Construction of Uniform Cobalt-Based Nanoshells and Its Potential for Improving Li-Ion Battery Performance. ACS APPLIED MATERIALS & INTERFACES 2018; 10:22896-22901. [PMID: 29947502 DOI: 10.1021/acsami.8b08528] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Surface cobalt doping is an effective and economic way to improve the electrochemical performance of cathode materials. Herein, by tuning the precipitation kinetics of Co2+, we demonstrate an aqueous-based protocol to grow uniform basic cobaltous carbonate coating layer onto different substrates, and the thickness of the coating layer can be adjusted precisely in nanometer accuracy. Accordingly, by sintering the cobalt-coated LiNi0.5Mn1.5O4 cathode materials, an epitaxial cobalt-doped surface layer will be formed, which will act as a protective layer without hindering charge transfer. Consequently, improved battery performance is obtained because of the suppression of interfacial degradation.
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Affiliation(s)
- Jun-Yu Piao
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry , Chinese Academy of Sciences (ICCAS) , Beijing 100190 , China
- University of Chinese Academy of Sciences (UCAS) , Beijing 100049 , China
| | - Xiao-Chan Liu
- Shandong Provincial Key Laboratory for Special Silicone - Containing Materials, Advanced Materials Institute , Qilu University of Technology (Shandong Academy of Sciences) , Jinan 250014 , China
| | - Jinpeng Wu
- Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
- Geballe Laboratory for Advanced Materials , Stanford University , Stanford , California 94305 , United States
| | - Wanli Yang
- Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Zengxi Wei
- College of Physics and Electronics , Hunan University , Changsha 410022 , China
| | - Jianmin Ma
- College of Physics and Electronics , Hunan University , Changsha 410022 , China
| | - Shu-Yi Duan
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry , Chinese Academy of Sciences (ICCAS) , Beijing 100190 , China
- University of Chinese Academy of Sciences (UCAS) , Beijing 100049 , China
| | - Xi-Jie Lin
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry , Chinese Academy of Sciences (ICCAS) , Beijing 100190 , China
- University of Chinese Academy of Sciences (UCAS) , Beijing 100049 , China
| | - Yan-Song Xu
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry , Chinese Academy of Sciences (ICCAS) , Beijing 100190 , China
- University of Chinese Academy of Sciences (UCAS) , Beijing 100049 , China
| | - An-Min Cao
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry , Chinese Academy of Sciences (ICCAS) , Beijing 100190 , China
- University of Chinese Academy of Sciences (UCAS) , Beijing 100049 , China
| | - Li-Jun Wan
- CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry , Chinese Academy of Sciences (ICCAS) , Beijing 100190 , China
- University of Chinese Academy of Sciences (UCAS) , Beijing 100049 , China
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36
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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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Yang Y, Kao LC, Liu Y, Sun K, Yu H, Guo J, Liou SYH, Hoffmann MR. Cobalt-Doped Black TiO 2 Nanotube Array as a Stable Anode for Oxygen Evolution and Electrochemical Wastewater Treatment. ACS Catal 2018; 8:4278-4287. [PMID: 29755829 PMCID: PMC5939910 DOI: 10.1021/acscatal.7b04340] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 04/09/2018] [Indexed: 11/28/2022]
Abstract
![]()
TiO2 has long been recognized as a stable and reusable
photocatalyst for water splitting and pollution control. However,
it is an inefficient anode material in the absence of photoactivation
due to its low electron conductivity. To overcome this limitation,
a series of conductive TiO2 nanotube array electrodes have
been developed. Even though nanotube arrays are effective for electrochemical
oxidation initially, deactivation is often observed within a few hours.
To overcome the problem of deactivation, we have synthesized cobalt-doped
Black-TiO2 nanotube array (Co-Black NTA) electrodes that
are stable for more than 200 h of continuous operation in a NaClO4 electrolyte at 10 mA cm–2. Using X-ray
photoelectron spectroscopy, X-ray absorption spectroscopy, electron
paramagnetic resonance spectroscopy, and DFT simulations, we are able
to show that bulk oxygen vacancies (Ov) are the primary
source of the enhanced conductivity of Co-Black. Cobalt doping both
creates and stabilizes surficial oxygen vacancies, Ov,
and thus prevents surface passivation. The Co-Black electrodes outperform
dimensionally stable IrO2 anodes (DSA) in the electrolytic
oxidation of organic-rich wastewater. Increasing the loading of Co
leads to the formation of a CoOx film
on top of Co-Black electrode. The CoOx/Co-Black composite electrode was found to have a lower OER overpotential
(352 mV) in comparison to a DSA IrO2 (434 mV) electrode
and a stability that is greater than 200 h in a 1.0 M KOH electrolyte
at a current density of 10 mA cm–2.
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Affiliation(s)
- Yang Yang
- Division of Engineering and Applied Science, Linde-Robinson Laboratory, California Institute of Technology, Pasadena, California 91125, United States
| | - Li Cheng Kao
- Department of Geosciences, National Taiwan University, P.O. Box 13-318, Taipei 106, Taiwan
| | - Yuanyue Liu
- Department of Mechanical Engineering and Texas Materials Institute, University of Texas at Austin, Austin, Texas 78712, United States
| | - Ke Sun
- Divisions of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Hongtao Yu
- School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, People’s Republic of China
| | - Jinghua Guo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, California 95064, United States
| | - Sofia Ya Hsuan Liou
- Department of Geosciences, National Taiwan University, P.O. Box 13-318, Taipei 106, Taiwan
| | - Michael R. Hoffmann
- Division of Engineering and Applied Science, Linde-Robinson Laboratory, California Institute of Technology, Pasadena, California 91125, United States
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Cheng X, Zhang Y, Hu H, Shang M, Bi Y. High-efficiency SrTiO 3/TiO 2 hetero-photoanode for visible-light water splitting by charge transport design and optical absorption management. NANOSCALE 2018; 10:3644-3649. [PMID: 29424380 DOI: 10.1039/c7nr09023d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Herein, a two-pronged approach to obtain excellent visible-light performance of SrTiO3/TiO2 photoelectrodes for water oxidation is presented. More specifically, the combination of hetero-constructing SrTiO3 nanocubes and Cr3+/Ti3+ dual-doping has been demonstrated for achieving high efficiency of charge separation and extending photoresponse of TiO2 nanotube arrays from the UV to visible light region. As expected, this unique Cr-SrTiO3-x/Cr-TiO2-x photoanode exhibited remarkably improved PEC performance for water splitting (4.05 mA cm-2) under visible light irradiation, which is more than 100 times higher than that of pristine TiO2 nanotube arrays. Additionally, the photocurrent intensity as well as water splitting behavior remain constant even after long time irradiation, revealing its high PEC as well as structure stability. Thereby, the rational design of the interface charge transport and precise management of optical absorption endow the TiO2-based PEC system with excellent and stable visible-light performance for water splitting.
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Affiliation(s)
- Xiang Cheng
- State Key Laboratory for Oxo Synthesis & Selective Oxidation, National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou, Gansu 730000, China.
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Chang HW, Fu Y, Lee WY, Lu YR, Huang YC, Chen JL, Chen CL, Chou WC, Chen JM, Lee JF, Shen S, Dong CL. Visible light-induced electronic structure modulation of Nb- and Ta-doped α-Fe 2O 3 nanorods for effective photoelectrochemical water splitting. NANOTECHNOLOGY 2018; 29:064002. [PMID: 29176050 DOI: 10.1088/1361-6528/aa9d75] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The photoelectrochemical (PEC) water splitting activity of Nb and Ta-doped hematite (α-Fe2O3) nanorods was investigated with reference to electronic structures by in situ synchrotron x-ray absorption spectroscopy (XAS). Current density-potential measurements demonstrate that the PEC activity of α-Fe2O3 nanorods depends strongly on the species and concentrations of dopants. The doping of α-Fe2O3 nanorods with a low level of Nb or Ta can improve their electrical conductivity and thereby facilitate charge transport and reduced electron-hole recombination therein. The photoconversion effects of Nb and Ta-doped α-Fe2O3 by in situ XAS in the dark and under illumination revealed opposite evolutions of the spectral intensities of the Fe L-edge and Nb/Ta L-edge, indicating that charge transfer and a conduction pathway are involved in the photoconversion. Analytic in situ XAS results reveal that the α-Fe2O3 that is doped with a low level of Nb has a greater photoconversion efficiency than that doped with Ta because Nb sites are more active than Ta sites in α-Fe2O3. The correlation between PEC activity and the electronic structure of Nb/Ta-doped α-Fe2O3 is examined in detail using in situ XAS and helps to elucidate the mechanism of PEC water splitting in terms of the electronic structure.
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Affiliation(s)
- Han-Wei Chang
- Department of Physics, Tamkang University, Tamsui 25137, Taiwan. Research Center for X-ray Science, Tamkang University, Tamsui 25137, Taiwan
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Du C, Wang J, Liu X, Yang J, Cao K, Wen Y, Chen R, Shan B. Ultrathin CoO x-modified hematite with low onset potential for solar water oxidation. Phys Chem Chem Phys 2018; 19:14178-14184. [PMID: 28530305 DOI: 10.1039/c7cp01588g] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoelectrochemical water splitting holds great potential for solar energy conversion and storage with zero greenhouse gas emission. Integration of a suitable co-catalyst with an absorber material enables the realization of highly efficient photocleavage of water. Herein, nanostructured hematite film was coated with an ultrathin and conformal CoOx overlayer through atomic layer deposition (ALD). The best performing hybrid hematite with a 2-3 nm ALD CoOx overlayer yielded a remarkable turn on potential of 0.6 VRHE for the water oxidation reaction. Moreover, material analyses revealed that the surface amorphous CoOx/Co(OH)2 component exhibited good optical transparency and hydrophilic properties, which were beneficial for the formation of an ideal hematite/electrolyte interface. In addition to the presence of the CoOx overlayer, a negative shift of flat band potential (VFB) as well as suppression of surface recombination helped to significantly promote the charge separation and collection properties, contributing to the overall solar conversion efficiency. As a result, the external quantum efficiency (IPCE) obtained on hematite increases by 66% at 1.23 VRHE.
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Affiliation(s)
- Chun Du
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, People's Republic of China.
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41
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Liu C, Wang F, Qiu Y, Liang Q, Mitsuzak N, Chen Z. Facile electrodeposition of cobalt hydroxide on anodic TiO2 nanotubes arrays for enhanced photoelectrochemical application. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.11.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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42
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Ma Q, Zhang H, Cui Y, Deng X, Guo R, Cheng X, Xie M, Cheng Q. Fabrication of Cu 2 O/TiO 2 nano-tube arrays photoelectrode and its enhanced photoelectrocatalytic performance for degradation of 2,4,6-trichlorophenol. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2017.08.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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43
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Xu M, Huang L, Fang Y, Han L, Yu Y, Dong S. The unified ordered mesoporous carbons supported Co-based electrocatalysts for full water splitting. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.12.152] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Ri CN, Kim SG, Ju KS, Ryo HS, Mun CH, Kim UH. The synthesis of a Bi2MoO6/Bi4V2O11 heterojunction photocatalyst with enhanced visible-light-driven photocatalytic activity. RSC Adv 2018; 8:5433-5440. [PMID: 35542393 PMCID: PMC9078112 DOI: 10.1039/c7ra12766a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 01/04/2018] [Indexed: 12/03/2022] Open
Abstract
A novel Bi2MoO6/Bi4V2O11 heterostructured photocatalyst was successfully fabricated using a facile one-pot solvothermal method. This heterojunction consists of homogeneous dispersed Bi4V2O11 nanocrystals anchored on the surface of Bi2MoO6 nanoflakes, endowing the heterojunction with nanosized interfacial contact. Based on the favorable interfacial contact, the band alignment at the heterojunction effectively facilitated photo-generated carrier transfer, which was verified by photoelectrochemical and photoluminescence measurements. Thereby, in contrast with pristine Bi2MoO6 and Bi4V2O11, the as-synthesized heterojunction with nanoscale contact exhibited significantly enhanced photocatalytic activity towards the degradation of MB and the reduction of Cr(vi). In addition, the as-fabricated Bi2MoO6/Bi4V2O11 heterojunction exhibited good cycling stability for MB degradation after 4 cycles. Finally, a plausible photocatalytic mechanism for MB degradation over the Bi2MoO6/Bi4V2O11 heterojunction was discussed in detail. This work not only reports a highly efficient photocatalyst but also sheds light on the design and optimization of a heterojunction. A Bi2MoO6/Bi4V2O11 heterojunction exhibits remarkably enhanced photocatalytic activity for MB degradation and Cr(vi) reduction under visible-light illumination compared to its pristine samples.![]()
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Affiliation(s)
- Chol-Nam Ri
- Institute for Electronic Materials
- Kim Il Sung University
- Pyongyang
- Democratic People's Republic of Korea
- School of Chemistry and Chemical Engineering
| | - Song-Gol Kim
- Institute for Electronic Materials
- Kim Il Sung University
- Pyongyang
- Democratic People's Republic of Korea
| | - Kyong-Sik Ju
- Institute of Advanced Science
- Kim Il Sung University
- Pyongyang
- Democratic People's Republic of Korea
| | - Hyok-Su Ryo
- Faculty of Physics
- Kim Il Sung University
- Pyongyang
- Democratic People's Republic of Korea
| | - Chol-Ho Mun
- Institute for Electronic Materials
- Kim Il Sung University
- Pyongyang
- Democratic People's Republic of Korea
| | - U-Hyon Kim
- Institute for Electronic Materials
- Kim Il Sung University
- Pyongyang
- Democratic People's Republic of Korea
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45
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Kurniawan A, Effendi C, Wang MJ. Electrospun titania fiber mats spin coated with thin polymer films as nanofibrous scaffolds for enhanced cell proliferation. J Tissue Eng Regen Med 2017; 12:1111-1122. [PMID: 29134783 DOI: 10.1002/term.2611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 10/03/2017] [Accepted: 10/28/2017] [Indexed: 11/07/2022]
Abstract
The incorporation of inorganic materials into electrospun nanofibres has recently gained considerable attention for the development of extracellular matrix-like scaffolds with improved mechanical properties and enhanced biological functions for tissue engineering applications. In this study, polymer-inorganic composite fibres consisting of poly(2-ethyl-2-oxazoline) (PEOXA) and tetrabutyl titanate as the titanium precursor were successfully fabricated through a combined sol-gel/electrospinning approach. PEOXA/Ti(OR)n composite fibres were obtained with varying amounts of polymer and titanium precursors. Calcinations of the composite fibres were performed at varying temperatures to produce TiO2 fibres (TiO2 -T-60) with anatase, anatase/rutile mixed phase, and rutile crystal structures. Thin polymer films (i.e., poly(2-ethyl-2-oxazoline) (PEOXA), polycaprolactone (PCL), and poly(methyl methacrylate) (PMMA)) were subsequently deposited onto TiO2 -T-60 fibre mats by spin coating to facilitate handling of the electrospun substrates after calcination, which are rather brittle and disintegrate easily, and to probe cell-materials interactions. The cellular behaviour of mouse L929 fibroblasts after culture periods of 1-5 days was compared on the following fibre scaffolds: PEOXA/Ti(OR)n , TiO2 -T-60 (T = 600, 650, and 700 °C), TiO2 -T-60 spin-coated with thin PCL film (PCL/TiO2 -T-60), and pure PCL. The results obtained from in vitro cell culture studies for the lactate dehydrogenase release assay and confocal microscopic visualization pointed out the synergistic interplay between the TiO2 crystal structure and spin-coated PCL film in facilitating cell interactions with the scaffold surface. The L929 cells were observed to adhere and proliferate better on the surface of TiO2 -700-60 having the rutile structure than on the surfaces of TiO2 -600-60 and TiO2 -650-60 fibre scaffolds with anatase and anatase/rutile mixed phase structures, respectively.
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Affiliation(s)
- Alfin Kurniawan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Chintya Effendi
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Meng-Jiy Wang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
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Zhou Q, Zhou J, Zeng M, Wang G, Chen Y, Lin S. Photoelectrochemical Performance of Quantum dot-Sensitized TiO 2 Nanotube Arrays: a Study of Surface Modification by Atomic Layer Deposition Coating. NANOSCALE RESEARCH LETTERS 2017; 12:261. [PMID: 28395481 PMCID: PMC5383911 DOI: 10.1186/s11671-017-2036-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 03/29/2017] [Indexed: 05/31/2023]
Abstract
Although CdS and PbS quantum dot-sensitized TiO2 nanotube arrays (TNTAs/QDs) show photocatalytic activity in the visible-light region, the low internal quantum efficiency and the slow interfacial hole transfer rate limit their applications. This work modified the surface of the TNTAs/QDs photoelectrodes with metal-oxide overlayers by atomic layer deposition (ALD), such as coating Al2O3, TiO2, and ZnO. The ALD deposition of all these overlayers can apparently enhance the photoelectrochemical performance of the TNTAs/QDs. Under simulated solar illumination, the maximum photocurrent densities of the TNTAs/QDs with 10 cycles ZnO, 25 cycles TiO2, and 30 cycles Al2O3 overlayers are 5.0, 4.3, and 5.6 mA/cm2 at 1.0 V (vs. SCE), respectively. The photoelectrode with Al2O3 overlayer coating presents the superior performance, whose photocurrent density is 37 times and 1.6 times higher than those of the TNTAs and TNTAs/QDs, respectively. Systematic examination of the effects of various metal-oxide overlayers on the photoelectrochemical performance indicates that the enhancement by TiO2 and ZnO overcoatings can only ascribed to the decrease of the interfacial charge transfer impedance, besides which Al2O3 coating can passivate the surface states and facilitate the charge transfer kinetics. These results could be helpful to develop high-performance photoelectrodes in the photoelectrochemical applications.
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Affiliation(s)
- Quan Zhou
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, People's Republic of China
- College of Materials and Chemical Engineering, Hainan University, Haikou, 570228, People's Republic of China
| | - Junchen Zhou
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, People's Republic of China
- College of Materials and Chemical Engineering, Hainan University, Haikou, 570228, People's Republic of China
| | - Min Zeng
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, People's Republic of China
- College of Materials and Chemical Engineering, Hainan University, Haikou, 570228, People's Republic of China
| | - Guizhen Wang
- College of Materials and Chemical Engineering, Hainan University, Haikou, 570228, People's Republic of China
| | - Yongjun Chen
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, People's Republic of China
- College of Materials and Chemical Engineering, Hainan University, Haikou, 570228, People's Republic of China
| | - Shiwei Lin
- State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou, 570228, People's Republic of China.
- College of Materials and Chemical Engineering, Hainan University, Haikou, 570228, People's Republic of China.
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Zhu L, Lu H, Hao D, Wang L, Wu Z, Wang L, Li P, Ye J. Three-Dimensional Lupinus-like TiO 2 Nanorod@Sn 3O 4 Nanosheet Hierarchical Heterostructured Arrays as Photoanode for Enhanced Photoelectrochemical Performance. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38537-38544. [PMID: 29047272 DOI: 10.1021/acsami.7b11872] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel photoelectrode of three-dimensional (3D) lupinus-like TiO2 nanorod@Sn3O4 nanosheet hierarchical heterostructured arrays (TiO2@Sn3O4 HHAs) on a transparent F-doped SnO2 glass substrate was designed and fabricated by a two-step solvothermal growth process. Photoelectrochemical (PEC) measurements showed that the 3D lupinus-like TiO2@Sn3O4 HHAs photoelectrode displayed enhanced photocurrent density (3-fold increase with respect to that of pure TiO2), improved conversion efficiency, more negative onset potential (from -0.13 to -0.33 V vs normal hydrogen electrode), and higher light on/off cycle stability. The improved PEC properties may be ascribable to the enhancement of light harvesting and large contact area with the electrolyte by increased surface area as well as improvement of charge transfer and collection through the synergistic effects between band structures and morphology.
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Affiliation(s)
- Luping Zhu
- School of Environmental and Materials Engineering, Shanghai Polytechnic University , Shanghai 201209, P. R. China
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS) , Tsukuba 305-0044, Ibaraki, Japan
| | - Hao Lu
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS) , Tsukuba 305-0044, Ibaraki, Japan
- College of Physics, Soochow University , Suzhou 215006, P. R. China
| | - Dong Hao
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS) , Tsukuba 305-0044, Ibaraki, Japan
| | - Lingling Wang
- School of Environmental and Materials Engineering, Shanghai Polytechnic University , Shanghai 201209, P. R. China
| | - Zihua Wu
- School of Environmental and Materials Engineering, Shanghai Polytechnic University , Shanghai 201209, P. R. China
| | - Lijun Wang
- School of Environmental and Materials Engineering, Shanghai Polytechnic University , Shanghai 201209, P. R. China
| | - Peng Li
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS) , Tsukuba 305-0044, Ibaraki, Japan
| | - Jinhua Ye
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS) , Tsukuba 305-0044, Ibaraki, Japan
- TU-NIMS Joint Research Center, Tianjin University , Tianjin 300072, P. R. China
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48
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Yin R, Liu M, Tang R, Yin L. CdS Nanoparticle-Modified α-Fe 2O 3/TiO 2 Nanorod Array Photoanode for Efficient Photoelectrochemical Water Oxidation. NANOSCALE RESEARCH LETTERS 2017; 12:520. [PMID: 28866742 PMCID: PMC5581748 DOI: 10.1186/s11671-017-2278-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Accepted: 08/21/2017] [Indexed: 06/07/2023]
Abstract
In this work, we demonstrate a facile successive ionic layer adsorption and reaction process accompanied by hydrothermal method to synthesize CdS nanoparticle-modified α-Fe2O3/TiO2 nanorod array for efficient photoelectrochemical (PEC) water oxidation. By integrating CdS/α-Fe2O3/TiO2 ternary system, light absorption ability of the photoanode can be effectively improved with an obviously broadened optical-response to visible light region, greatly facilitates the separation of photogenerated carriers, giving rise to the enhancement of PEC water oxidation performance. Importantly, for the designed abnormal type-II heterostructure between Fe2O3/TiO2, the conduction band position of Fe2O3 is higher than that of TiO2, the photogenerated electrons from Fe2O3 will rapidly recombine with the photogenerated holes from TiO2, thus leads to an efficient separation of photogenerated electrons from Fe2O3/holes from TiO2 at the Fe2O3/TiO2 interface, greatly improving the separation efficiency of photogenerated holes within Fe2O3 and enhances the photogenerated electron injection efficiency in TiO2. Working as the photoanodes of PEC water oxidation, CdS/α-Fe2O3/TiO2 heterostucture electrode exhibits improved photocurrent density of 0.62 mA cm- 2 at 1.23 V vs. reversible hydrogen electrode (RHE) in alkaline electrolyte, with an obviously negatively shifted onset potential of 80 mV. This work provides promising methods to enhance the PEC water oxidation performance of the TiO2-based heterostructure photoanodes.
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Affiliation(s)
- Ruiyang Yin
- School of Physics, Shandong University, Jinan, 250100, People's Republic of China
| | - Mingyang Liu
- School of Physics, Shandong University, Jinan, 250100, People's Republic of China
| | - Rui Tang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, 250061, People's Republic of China
| | - Longwei Yin
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan, 250061, People's Republic of China.
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Pradhan AC, Senthamizhan A, Uyar T. Electrospun Mesoporous Composite CuO−Co3O4/N- TiO2 Nanofibers as Efficient Visible Light Photocatalysts. ChemistrySelect 2017. [DOI: 10.1002/slct.201701699] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Amaresh C. Pradhan
- Institute of Materials Science & Nanotechnology; UNAM-National Nanotechnology Research Center, Bilkent University; Ankara 06800 Turkey
| | - Anitha Senthamizhan
- Institute of Materials Science & Nanotechnology; UNAM-National Nanotechnology Research Center, Bilkent University; Ankara 06800 Turkey
| | - Tamer Uyar
- Institute of Materials Science & Nanotechnology; UNAM-National Nanotechnology Research Center, Bilkent University; Ankara 06800 Turkey
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50
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Yang C, Zhang X, Qin J, Shen X, Yu R, Ma M, Liu R. Porous carbon-doped TiO2 on TiC nanostructures for enhanced photocatalytic hydrogen production under visible light. J Catal 2017. [DOI: 10.1016/j.jcat.2016.11.041] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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