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Meng L, Zhou L, Liu C, Jia H, Lu Y, Ji D, Liang T, Yuan Y, Zhang X, Zhu Y, Jiang Y, Guan P, Zhou Y, Zhang Q, Wan T, Li M, Li Z, Joshi R, Han Z, Chu D. Synergistic barium titanate/MXene composite as a high-performance piezo-photocatalyst for efficient dye degradation. J Colloid Interface Sci 2024; 674:972-981. [PMID: 38964001 DOI: 10.1016/j.jcis.2024.06.222] [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: 05/28/2024] [Revised: 06/19/2024] [Accepted: 06/27/2024] [Indexed: 07/06/2024]
Abstract
Piezo-photocatalysis combines photocatalysis and piezoelectric effects to enhance catalytic efficiency by creating an internal electric field in the photocatalyst, improving carrier separation and overall performance. This study presents a high-performance piezo-photocatalyst for efficient dye degradation using a synergistic barium titanate (BTO)-MXene composite. The composite was synthesized via a facile method, combining the unique properties of BTO nanoparticles with the high conductivity of MXene. The structural and morphological analysis confirmed the successful formation of the composite, with well-dispersed BTO nanoparticles on the MXene surface. The piezo-photocatalytic activity of the composite was evaluated using a typical dye solution (Rhodamine B: RhB) under ultraviolet irradiation and mechanical agitation. The results revealed a remarkable enhancement in dye degradation (90 % in 15 min for piezo-photocatalysis) compared to individual stimuli (58.2 % for photocatalysis and 95.8 % in 90 min for piezocatalysis), highlighting the synergistic effects between BTO and MXene. The enhanced catalytic performance was attributed to the efficient charge separation and transfer facilitated by the composite's structure, leading to increased reactive species generation and dye molecule degradation. Furthermore, the composite exhibited excellent stability and reusability, showcasing its potential for practical applications in wastewater treatment. Overall, this work represents a promising strategy for designing high-performance synergistic catalysts, addressing the pressing need for sustainable solutions in environmental remediation.
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Affiliation(s)
- Linghui Meng
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Lu Zhou
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Chao Liu
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Haowei Jia
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Yile Lu
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Dali Ji
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Tianyue Liang
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Yu Yuan
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Xinren Zhang
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Yanzhe Zhu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yue Jiang
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Peiyuan Guan
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia.
| | - Yingze Zhou
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia.
| | - Qi Zhang
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO), Sydney 2070, Australia
| | - Tao Wan
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Mengyao Li
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia.
| | - Zhi Li
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Rakesh Joshi
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia
| | - Zhaojun Han
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Australia
| | - Dewei Chu
- School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia.
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Dong Z, Guan P, Zhou L, Jiang Y, Chen F, Wang J, Jia H, Huang Y, Cao T, Meng L, Zhou Y, Li M, Wan T, Hu L, Xu Z, Han Z, Chu D. Enhanced Piezocatalytic Performance of Li-doped BaTiO 3 Through a Facile Sonication-Assisted Precipitation Approach. CHEMSUSCHEM 2024:e202400796. [PMID: 38697941 DOI: 10.1002/cssc.202400796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Revised: 04/30/2024] [Accepted: 05/02/2024] [Indexed: 05/05/2024]
Abstract
Piezocatalysis-induced dye degradation has garnered significant attention as an effective method for addressing wastewater treatment challenges. In our study, we employed a room-temperature sonochemical method to synthesize piezoelectric barium titanate nanoparticles (BaTiO3: BTO) with varying levels of Li doping. This approach not only streamlined the sample preparation process but also significantly reduced the overall time required for synthesis, making it a highly efficient and practical method. One of the key findings was the exceptional performance of the Li-doped BTO nanoparticles. With 20 mg of Li additive, we achieved 90 % removal of Rhodamine B (RhB) dye within a relatively short timeframe of 150 minutes, all while subjecting the sample to ultrasonic vibration. This rapid and efficient dye degradation was further evidenced by the calculated kinetic rate constant, which indicated seven times faster degradation rate compared to pure BTO. The enhanced piezoelectric performance observed in the Li-doped BTO nanoparticles can be attributed to the strategic substitution of Li atoms, which facilitated a more efficient transfer of charge charges at the interface. Overall, our study underscores the potential of piezocatalysis coupled with advanced materials like Li-doped BTO nanoparticles as a viable and promising solution for wastewater treatment, offering both efficiency and environmental sustainability.
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Affiliation(s)
- Zekun Dong
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Peiyuan Guan
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Lu Zhou
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Yue Jiang
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Fandi Chen
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Jinbo Wang
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Haowei Jia
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Yixuan Huang
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Tao Cao
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Linghui Meng
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Yingze Zhou
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Mengyao Li
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Tao Wan
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Long Hu
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Zhemi Xu
- Chemistry and Material Engineering College, Beijing Technology and Business University, Beijing, 100048, P. R. China
| | - Zhaojun Han
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, 4001, Australia
| | - Dewei Chu
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
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Zhou H, Zhang B, Jiang Z, Zhao H, Zhang Y. Room-Temperature Synthesis of Carbon Dot/TiO 2 Composites with High Photocatalytic Activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:7184-7191. [PMID: 37167539 DOI: 10.1021/acs.langmuir.3c00652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Benefiting from the wide-range absorption and adjustable energy gap, carbon dots (C-dots) have attracted a great deal of attention and they have been used to sensitize semiconductor nanocomposites to boost the efficiency of energy conversion devices, while there is still a lack of fundamental understanding of the interaction between such materials and their influence on the catalytic activity on the reaction process. In this study, C-dots were used to modify TiO2 to form a direct Z-scheme (DZS) junction for enhancement of the photocatalytic activity. The C-dot/TiO2 composite was prepared by ultrasonication at room temperature through coupling between the Ti-O-C bond and electrostatic interaction. The C-dots can dramatically enhance the absorption of the composite by forming the DZS, and the composite is enabled to generate more free radicals, which facilitate ∼10 times higher photocatalytic activity compared to that of TiO2. As a proof of concept, the as-prepared C-dot/TiO2 was used for textile wastewater dye degradation. This study provides an efficient approach for room-temperature preparation of C-dot/TiO2 composites with high photocatalytic activity.
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Affiliation(s)
- Hao Zhou
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P. R. China
| | - Bin Zhang
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P. R. China
| | - Zhan Jiang
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P. R. China
| | - Haiguang Zhao
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P. R. China
| | - Yuanming Zhang
- College of Textiles and Clothes, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, P. R. China
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Li W, Ye Q, Xia T, Zhao L, Yang M. Degradation of Organic Dyes Using the Ionizing Irradiation Process in the Presence of the CN/CD 3/Fe 6 Composite: Mechanistic Studies. ACS OMEGA 2022; 7:21418-21432. [PMID: 35785285 PMCID: PMC9244913 DOI: 10.1021/acsomega.2c00512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Organic dyes are ubiquitous pollutants in various aquatic environments as they are produced in abundance and used widely. In the present work, the degradation and mineralization of various organic dyes such as methylene blue (MB), methyl orange (MO), and rhodamine B (RhB), following the electron beam irradiation method in the presence of a graphitic carbon nitride/carbon nanodots/Fe(II) (CN/CD3/Fe6) composite, were studied. The removal efficiency of MB reached 81.7% under conditions of electron beam irradiation (EBI) when the total irradiation dose was 5 kGy. This increased to 91.2% in the presence of the CN/CD3/Fe6 composite. The mineralization efficiency increased from 30.1 to 47.3% when the composite was added, and the total irradiation dose was 20 kGy. The removal efficiency of organic dyes was not significantly affected in the pH range of 3-11. Results from cyclic experiments conducted using MB degradation indicated that the CN/CD3/Fe6 composite exhibited good stability and reusability even after five irradiation cycles. Results from scavenging experiments revealed that •OH was the predominant reactive species during the MB degradation process. Intermediates produced in the synergistic system (EBI&CN/CD3/Fe6 system) consisting of the CN/CD3/Fe6 composite and EBI were detected using the liquid chromatography-mass spectrometry (LC-MS) technique. Based on the results, the possible degradation mechanism and pathways for MB were proposed.
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Affiliation(s)
- Wen Li
- School
of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Qi Ye
- State
Key Laboratory of Advanced Electromagnetic Engineering and Technology,
School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Tao Xia
- School
of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Long Zhao
- State
Key Laboratory of Advanced Electromagnetic Engineering and Technology,
School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Miao Yang
- School
of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
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