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Xiao L, Gao S, Liao R, Zhou Y, Kong Q, Hu G. C 3N 5-based nanomaterials and their applications in heterogeneous catalysts, energy harvesting, and environmental remediation. MATERIALS HORIZONS 2024. [PMID: 38445393 DOI: 10.1039/d3mh02092d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Over the past few decades, the global reliance on fossil fuels and the exponential growth of human population have escalated global energy consumption and environmental issues. To tackle these dual challenges, metal catalysts, in particular precious metal ones, have emerged as pivotal players in the fields of environment and energy. Among the numerous metal-free and organic catalyst materials, C3N5-based materials have a major advantage over their carbon nitride (CxNy) counterparts owing to the abundant availability of raw materials, non-toxicity, non-hazardous nature, and exceptional performance. Although significant efforts have been dedicated to synthesising and optimising the applicable properties of C3N5-based materials in recent years, a comprehensive summary of the immediate parameters of this promising material is still lacking. Given the rapid development of C3N5-based materials, a timely review is essential for staying updated on their strengths and weaknesses across various applications, as well as providing guidance for designing efficient catalysts. In this study, we present an extensive overview of recent advancements in C3N5-based materials, encompassing their physicochemical properties, major synthetic methods, and applications in photocatalysis, electrocatalysis, and adsorption, among others. This systematic review effectively summarises both the advantages and shortcomings associated with C3N5-based materials for energy and environmental applications, thus offering researchers focussed on CxNy-materials an in-depth understanding of those based on C3N5. Finally, considering the limitations and deficiencies of C3N5-based materials, we have proposed enhancement schemes and strategies, while presenting personal perspectives on the challenges and future directions for C3N5. Our ultimate aim is to provide valuable insights for the research community in this field.
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Affiliation(s)
- Linfeng Xiao
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China.
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China.
- Southwest United Graduate School, Kunming 650092, China
| | - Sanshuang Gao
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China.
| | - Runhua Liao
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen 333403, China.
| | - Yingtang Zhou
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution Control, National Engineering Research Center for Marine Aquaculture, Marine Science and Technology College, Zhejiang Ocean University, Zhoushan 316022, China.
| | - Qingquan Kong
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China.
- Southwest United Graduate School, Kunming 650092, China
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2
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Ma D, Wang W, Wang Q, Dai Y, Zhu K, Xu H, Yuan C, Dong P, Xi X. A novel visible-light-driven Z-scheme C 3N 5/BiVO 4 heterostructure with enhanced photocatalytic degradation performance. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:19687-19698. [PMID: 38366321 DOI: 10.1007/s11356-024-32086-7] [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: 10/24/2023] [Accepted: 01/16/2024] [Indexed: 02/18/2024]
Abstract
As a visible-light response semiconductor materials, bismuth vanadate (BiVO4) is extensively applied in photodegradation organic dye field. In this study, we synthesized C3N5 nanosheets and coupled with decahedral BiVO4 to construct a Z-scheme C3N5/BiVO4 heterostructure with close interface contact. By introducing C3N5 into BiVO4, the built Z-scheme transfer pathway provides silky channel for charge carrier migration between different moieties and enables photoexcited electrons and holes accumulated on the surface of BiVO4 and C3N5. The accelerated separation of charge carriers ensures C3N5/BiVO4 heterostructures with a powerful oxidation capacity compared with pure BiVO4. Due to the synergistic effect in Z-scheme heterostructure, the C3N5/BiVO4 demonstrated an improved photodegradation ability of rhodamine B (RhB) and methylene blue (MB) that of bare BiVO4.
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Affiliation(s)
- Dongqi Ma
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China
| | - Wuyou Wang
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China.
| | - Qinzheng Wang
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China
| | - Yelan Dai
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China
| | - Kai Zhu
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China
| | - Haocheng Xu
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China
| | - Cheng Yuan
- School of Chemistry & Chemical Engineering, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China
| | - Pengyu Dong
- Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China
| | - Xinguo Xi
- Key Laboratory for Ecological-Environment Materials of Jiangsu Province, School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng, 224051, People's Republic of China
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He S, Liu Y, Wang G, Luo L, Tang X, Xiang D, Jiang T, Jing J, Wang L. Heterojunction photocatalyst FeS 2/g-C 3N 5 for activating sulfites to degrade tetracycline: A stable degradation system based on heterogeneous processes. ENVIRONMENTAL RESEARCH 2023; 237:116939. [PMID: 37611781 DOI: 10.1016/j.envres.2023.116939] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/27/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023]
Abstract
The UV/sulfite system is a promising source of •SO4- and/or •OH, but its application is largely limited by the use of UV light due to its high cost and high energy consumption. Graphite carbon nitride (g-C3N5), as a new photocatalytic material, has better visible light absorption capacity and narrower band gap than g-C3N4, which is expected to activate sulfite under visible light to solve this problem. Herein, a novel FeS2/CN heterojunction material based on g-C3N5 was constructed by hydrothermal in-situ synthesis method and successfully activated sulfite, which was confirmed by tetracycline degradation experiments in water. Under optimized conditions, the degradation rate of TC in 1 h reached 96%. The experimental results revealed that the FeS2/CN heterostructure enhances the absorption of visible light and inhibits the recombination of carriers, enabling more electrons and holes to be utilized. Holes play a major role in the degradation reaction, promote the sulfite chain reaction, and effectively regulate the cycle of Fe2+ and Fe3+ in the solution. Iron ion leaching is negligible and the degradation reaction remains stable at pH 5-9.
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Affiliation(s)
- Siyu He
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Yaoqi Liu
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Guanlong Wang
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Lingzhi Luo
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Xiaoyun Tang
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Dongmei Xiang
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Tingting Jiang
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China
| | - Jiang Jing
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu, 611730, China.
| | - Lei Wang
- School of Materials and Environmental Engineering, Institute of Urban Ecology and Environment Technology, Shenzhen Polytechnic, Shenzhen, 518055, China.
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Kamalakannan S, Balasubramaniyan N, Bernaurdshaw N, Vattikondala G. Impact of nitrogen doping on triazole-based graphitic carbon Nitride-TiO 2 (P25) S-scheme heterojunction for improved photocatalytic hydrogen production. NANOSCALE ADVANCES 2023; 5:5907-5922. [PMID: 37881703 PMCID: PMC10597561 DOI: 10.1039/d3na00597f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/22/2023] [Indexed: 10/27/2023]
Abstract
Establishing an S-scheme heterojunction is a promising method for increasing the photocatalytic activity of synthetic materials. In this study, nitrogen-doped g-C3N5/TiO2 S-scheme photocatalysts have been synthesized and examined for photocatalytic hydrogen production using thermal decomposition methods. Nitrogen-doped g-C3N5/TiO2 composites performed better than pure nitrogen-doped g-C3N5 and TiO2 alone. Using experiments and density functional theory (DFT) calculations, nitrogen (N) doping was identified as being introduced by replacing the carbon (C) atoms in the matrix of g-C3N5. In addition to its narrow band gap, N-doped g-C3N5 showed efficient carrier separation and charge transfer, resulting in the enhanced absorption of visible light and photocatalytic activity. DFT, XPS, optical property characteristics, and PL spectra confirmed these findings, which were attributed to the successful nitrogen doping, and the composite was proven to be a potential candidate for photocatalytic hydrogen generation under light irradiation. The quantity of H2 produced from the nitrogen-doped g-C3N5/TiO2 composite for 3 hours (3515.1 μmol g-1) was about three times that of N-doped g-C3N5. The H2 production percentage of the nitrogen-doped g-C3N5/TiO2 catalyst with Pt as the cocatalyst was improved by nearly ten times as compared to N-doped g-C3N5/TiO2 without a cocatalyst. Herein, we report the successful preparation of the N-doped g-C3N5/TiO2 S-scheme heterojunction and highlight a simple and efficient catalyst for energy storage requirements and environmental monitoring.
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Affiliation(s)
- Saravanan Kamalakannan
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur - 603 203 Tamil Nadu India
| | - Natarajan Balasubramaniyan
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur - 603 203 Tamil Nadu India
| | - Neppolian Bernaurdshaw
- Department of Chemistry, SRM Institute of Science and Technology Kattankulathur 603 203 Tamil Nadu India
| | - Ganesh Vattikondala
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology Kattankulathur 603203 Tamil Nadu India
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5
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Mao Y, Lin L, Chen Y, Yang M, Zhang L, Dai X, He Q, Jiang Y, Chen H, Liao J, Zhang Y, Wang Y. Preparation of site-specific Z-scheme g-C 3N 4/PAN/PANI@LaFeO 3 cable nanofiber membranes by coaxial electrospinning: Enhancing filtration and photocatalysis performance. CHEMOSPHERE 2023; 328:138553. [PMID: 37004820 DOI: 10.1016/j.chemosphere.2023.138553] [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: 12/23/2022] [Revised: 03/26/2023] [Accepted: 03/29/2023] [Indexed: 06/19/2023]
Abstract
The coaxial electrospinning method for preparation of g-C3N4/polyacrylonitrile (PAN)/polyaniline (PANI)@LaFeO3 cable fiber membrane (PC@PL) was designed for adsorption-filtration-photodegradation of pollutants. A series of characterization results show that LaFeO3 and g-C3N4 nanoparticles (NPs) are respectively loaded in the inner and outer layers of PAN/PANI composite fibers to construct the site-specific Z-type heterojunction system with spatially separated morphologies. The PANI in cable not only possesses abundant exposed amino/imino functional groups for adsorption of contaminant molecules but also due to the excellent electrical conductivity works as a redox medium for collecting and consuming the electrons and holes from LaFeO3 and g-C3N4, which can efficiently promote photo-generated charge carriers separation and improve the catalytic performance. Further investigations demonstrate that as a photo-Fenton catalyst LaFeO3 in PC@PL catalyzes/activates the H2O2 generated in situ by LaFeO3/g-C3N4, further enhancing the decontamination efficiency of the PC@PL. The porous, hydrophilic, antifouling, flexible and reusable properties of the PC@PL membrane significantly enhance the mass transfer efficiency of reactants by filtration effect and increase the amount of dissolved oxygen, thus producing massive •OH for degradation of pollutants, which maintains the water flux (1184 L m-2. h-1 (LMH)) and the rejection rate (98.5%). Profiting from its unique synergistic effect of adsorption, photo-Fenton and filtration, PC@PL exhibits wonderful self-cleaning performance and distinguished removal rate for methylene blue (97.0%), methyl violet (94.3%), ciprofloxacin (87.6%) and acetamiprid (88.9%) within 75 min, disinfection (100% Escherichia coli (E. coli) and 80% Staphylococcus aureus (S.aureus) inactivation)) and excellent cycle stability.
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Affiliation(s)
- Yihang Mao
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Li Lin
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Yuexing Chen
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - Mingrui Yang
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Li Zhang
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Xianxiang Dai
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Qing He
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Yuanyuan Jiang
- College of Science, Sichuan Agricultural University, Yaan 625014, China
| | - Hui Chen
- College of Life Science, Sichuan Agricultural University, Yaan 625014, China
| | - Jinqiu Liao
- College of Life Science, Sichuan Agricultural University, Yaan 625014, China
| | - Yunsong Zhang
- College of Science, Sichuan Agricultural University, Yaan 625014, China.
| | - Ying Wang
- College of Water Conservancy and Hydropower Engineering, Sichuan Agricultural University, Yaan 625014, China.
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Liu T, Shen H, Wang M, Feng Q, Chen L, Wang W, Zhang J. Fabrication of ZnIn2S4 nanosheets decorated hollow CdS nanostructure for efficient photocatalytic H2-evolution and antibiotic removal performance. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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7
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Ma J, Das J, Zhang J, Cheng J, Sorcar S, Rosen BA, Shekhter P, Dobrovetsky R, Flaxer E, Yavor Y, Shen R, Kaminker I, Goldbourt A, Gozin M. Carbon-Nitride Popcorn-A Novel Catalyst Prepared by Self-Propagating Combustion of Nitrogen-Rich Triazenes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205994. [PMID: 36638248 DOI: 10.1002/smll.202205994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/01/2022] [Indexed: 06/17/2023]
Abstract
The interest in development of non-graphitic polymeric carbon nitrides (PCNs), with various C-to-N ratios, having tunable electronic, optical, and chemical properties is rapidly increasing. Here the first self-propagating combustion synthesis methodology for the facile preparation of novel porous PCN materials (PCN3-PCN7) using new nitrogen-rich triazene-based precursors is reported. This methodology is found to be highly precursor dependent, where variations in the terminal functional groups in the newly designed precursors (compounds 3-7) lead to different combustion behaviors, and morphologies of the resulted PCNs. The foam-type highly porous PCN5, generated from self-propagating combustion of 5 is comprehensively characterized and shows a C-to-N ratio of 0.67 (C3 N4.45 ). Thermal analyses of PCN5 formulations with ammonium perchlorate (AP) reveal that PCN5 has an excellent catalytic activity in the thermal decomposition of AP. This catalytic activity of PCN5 is further evaluated in a closer-to-application scenario, showing an increase of 18% in the burn rate of AP-Al-HTPB (with 2 wt% of PCN5) solid composite propellant. The newly developed template- and additive-free self-propagating combustion synthetic methodology using specially designed nitrogen-rich precursors should provide a novel platform for the preparation of non-graphitic PCNs with a variety of building block chemistries, morphologies, and properties suitable for a broad range of technologies.
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Affiliation(s)
- Jinchao Ma
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210000, China
- School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Jagadish Das
- School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Jiaheng Zhang
- Sauvage Laboratory for Smart Materials, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Jian Cheng
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210000, China
| | - Saurav Sorcar
- Department of Materials Science and Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Brian A Rosen
- Department of Materials Science and Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
- Center for Advanced Combustion Science, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Pini Shekhter
- Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Roman Dobrovetsky
- School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Eli Flaxer
- Afeka Tel Aviv Academic College of Engineering, Tel Aviv, 69107, Israel
| | - Yinon Yavor
- Afeka Tel Aviv Academic College of Engineering, Tel Aviv, 69107, Israel
| | - Ruiqi Shen
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210000, China
| | - Ilia Kaminker
- School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Amir Goldbourt
- School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Michael Gozin
- School of Chemistry, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
- Center for Advanced Combustion Science, Tel Aviv University, Tel Aviv, 69978, Israel
- Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv, 69978, Israel
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Xiong Z, Liang Y, Yang J, Yang G, Jia J, Sa K, Zhang X, Zeng Z. Engineering a phase transition induced g-C3N5/poly (triazine imide) heterojunction for boosted photocatalytic H2 evolution. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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9
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Facile synthesis route for visible active g-C3N5/MK30 nanocomposite and its computationally guided photocatalytic degradation of organic pollutants. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liu J, Wang S, Zhao C, Zheng J. Engineered g-C 3N 5-Based Nanomaterials for Photocatalytic Energy Conversion and Environmental Remediation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:499. [PMID: 36770460 PMCID: PMC9921555 DOI: 10.3390/nano13030499] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/09/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Photocatalysis plays a vital role in sustainable energy conversion and environmental remediation because of its economic, eco-friendly, and effective characteristics. Nitrogen-rich graphitic carbon nitride (g-C3N5) has received worldwide interest owing to its facile accessibility, metal-free nature, and appealing electronic band structure. This review summarizes the latest progress for g-C3N5-based photocatalysts in energy and environmental applications. It begins with the synthesis of pristine g-C3N5 materials with various topologies, followed by several engineering strategies for g-C3N5, such as elemental doping, defect engineering, and heterojunction creation. In addition, the applications in energy conversion (H2 evolution, CO2 reduction, and N2 fixation) and environmental remediation (NO purification and aqueous pollutant degradation) are discussed. Finally, a summary and some inspiring perspectives on the challenges and possibilities of g-C3N5-based materials are presented. It is believed that this review will promote the development of emerging g-C3N5-based photocatalysts for more efficiency in energy conversion and environmental remediation.
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Affiliation(s)
- Juanjuan Liu
- State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (East China), Qingdao 266580, China
- Shandong Engineering and Technology Research Center for Ecological Fragile Belt of Yellow River Delta, Binzhou University, Binzhou 256600, China
| | - Shuaijun Wang
- School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Chaocheng Zhao
- State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (East China), Qingdao 266580, China
| | - Jingtang Zheng
- State Key Laboratory of Petroleum Pollution Control, China University of Petroleum (East China), Qingdao 266580, China
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Akbarzadeh A, Khazani Y, Khaloo SS, Ghalkhani M. Highly effectual photocatalytic degradation of tartrazine by using Ag nanoparticles decorated on Zn-Cu-Cr layered double hydroxide@ 2D graphitic carbon nitride (C 3N 5). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12903-12915. [PMID: 36121628 DOI: 10.1007/s11356-022-23001-z] [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: 07/04/2022] [Accepted: 09/08/2022] [Indexed: 06/15/2023]
Abstract
Pollution of water resources is one of the main concerns of many countries. This issue originates from the entry of diverse pollutants, including dye compounds, into water sources. In this work, ternary Zn-Cu-Cr layered double hydroxides (LDH) supported on graphitic carbon nitride (g-C3N5) decorated by silver nanoparticles (C3N5-LDH-Ag) was first prepared. Application of various characterization techniques such as SEM, XRD, and FT-IR revealed that the synthesized nanocomposite was composed of Zn-Cu-Cr LDH nanoparticles, g-C3N5 nanosheets, and Ag nanoparticles. The prepared nanomaterials were employed for the photodegradation of tartrazine in aqueous solutions. It was found that the C3N5-LDH-Ag catalyst outperformed their pure g-C3N5, Zn-Cu-Cr LDH, and C3N5-LDH composite in photocatalytic degradation of tartrazine under visible light irradiation. Tartrazine (20 mg/L) can be entirely removed by 0.25 g/L C3N5-LDH-Ag photocatalyst under 1 h visible light irradiation (200 W) at pH 6 with a rapid degradation rate constant (k) that is 4.4, 3.9, and 2.6 times higher than that of pure C3N5, Zn-Cu-Cr LDH, and C3N5-LDH component, respectively. The formation of hydroxyl radicals on the surface of C3N5-LDH-Ag as the main active species was approved by the capturing experiment. The finding results approved the stability and reusability of C3N5-LDH-Ag in four photocatalytic degradation cycles. In general, our findings revealed that the synthesized nanocomposite could be employed as an efficient photocatalyst in environmental remediation.
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Affiliation(s)
- Abbas Akbarzadeh
- Water and Wastewater Research Center, Water Research Institute, Tehran, Iran
| | - Yeganeh Khazani
- Department of Nanotechnology, College of Science, Urmia University, Urmia, Iran
| | - Shokooh Sadat Khaloo
- Workplace Health Promotion Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Department of Health, Safety, and Environment, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Masoumeh Ghalkhani
- Electrochemical Sensors Research Laboratory, Department of Chemistry, Faculty of Science, Shahid Rajaee Teacher Training University, Tehran, Iran
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12
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Diethylenetriamine-CdS hybrid materials (CdS-DETA) loaded nitrogen-rich carbon nitride (g-C3N5) for enhanced hydrogen production and photocatalytic degradation: Enhancement based on band bending. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Visible light driven photocatalytic performance of 3D TiO2/g-C3N5 nanocomposite via Z-scheme charge transfer promotion for water purification. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Yang J, Long J, Huang H, Yang X, Wei L. Synthesis of visible-light driven CeO2/g-C3N5 heterojunction with enhanced photocatalytic performance for organic dyes. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Fabrication of 2D/1D Bi2WO6/C3N5 heterojunctions for efficient antibiotics removal. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.118083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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16
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Expeditious degradation of SMX by high-valent cobalt-oxo species derived from cobalt-doped C3N5-activated peroxymonosulfate with the assistance of visible light. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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The interface design of (0D/2D/1D) AgI/BiOI/C3N5 dual Z-scheme heterostructures with efficient visible-light-driven photocatalytic activity. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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Li G, Zeng G, Chen Z, Hong J, Ji X, Lan Z, Tan X, Li M, Hu X, Tang C. In Situ Coupling Carbon Defective C 3N 5 Nanosheet with Ag 2CO 3 for Effective Degradation of Methylene Blue and Tetracycline Hydrochloride. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2701. [PMID: 35957132 PMCID: PMC9370685 DOI: 10.3390/nano12152701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/28/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
The development of novel catalysts for degrading organic contaminants in water is a current hot topic in photocatalysis research for environmental protection. In this study, C3N5 nanosheet/Ag2CO3 nanocomposites (CNAC-X) were used as efficient photocatalysts for the visible-light-driven degradation of methylene blue (MB), and tetracycline hydrochloride (TC-HCl) was synthesized for the first time using a simple thermal oxidative exfoliation and in situ deposition method. Due to the synergistic effect of nanosheet structures, carbon defects, and Z-scheme heterojunctions, CNAC-10 exhibited the highest photocatalytic activity, with photodegradation efficiencies of 96.5% and 97.6% for MB (60 mg/L) and TC-HCl (50 mg/L) within 90 and 100 min, respectively. The radical trapping experiments showed that ·O2- and h+ played major roles in the photocatalytic effect of the CNAC-10 system. Furthermore, intermediates in the photodegradation of MB and TC-HCl were investigated to determine possible mineralization pathways. The results indicated that C3N5 nanosheet/Ag2CO3 photocatalysts prepared in this work could provide an effective reference for the treatment of organic wastewater.
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Affiliation(s)
- Guoyu Li
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Genying Zeng
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zhangkai Chen
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Jiaming Hong
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xiaodong Ji
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Zhiqiang Lan
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xiaofei Tan
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
- Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha 410082, China
| | - Meifang Li
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Xinjiang Hu
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
| | - Chunfang Tang
- College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
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Jiang W, Li J, Jiang Y, Zhou S, Liu B, Zhou T, Liu C, Che G. A 3D porphyrinic metal-organic framework with fsc topology for efficient visible-light-driven photocatalytic degradation. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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20
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Green Ag/AgCl as an Effective Plasmonic Photocatalyst for Degradation and Mineralization of Methylthioninium Chloride. SEPARATIONS 2022. [DOI: 10.3390/separations9080191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
A green synthesis of Ag/AgCl with an exceptional SPR and photocatalysis property is greatly benefit to the environmental application especially pollutant removal. In this work, a novel green plasmonic photocatalysis of Ag/AgCl nanocatalyst using aqueous garlic extract (Allium Sativum L.) was successfully synthesized. The allicin and organosulfur compounds in the garlic can act as reducing agents in the green synthesis process. The nanocatalyst properties were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffractometer. The light-harvesting property was investigated by UV-vis absorption spectra which reveals its visible light absorption capability owing surface plasmon resonance behavior of Ag nanoparticles. The degradation and mineralization of methylthioninium chloride (MC) using this photocatalyst were evaluated under visible light and natural solar irradiation. Surface plasmon resonance of Ag nanoparticles and the presence of organosulfur from the garlic extract facilitated adsorption of MC onto the particle surface, promoting greater degradation. The photocatalytic reaction under visible light can be explained by the pseudo first-order pattern with the highest reaction rate of 0.5829 mg L−1 min−1 at pH 10. The photocatalytic activity of the Ag/AgCl under the natural sunlight reached 90% and 75% for MC and total organic carbon (TOC), respectively. The intermediate products detected during MC degradation under sunlight irradiation before final transformation to CO2, H2O, HNO3, and H2SO4 were also reported. The simplicity of Ag/AgCl green synthesis with the photocatalysis properties under visible light and sunlight can offer the convenience of applying these nanoparticles for pollutant removal in water treatment processes.
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Che H, Wang J, Gao X, Chen J, Wang P, Liu B, Ao Y. Regulating directional transfer of electrons on polymeric g-C 3N 5 for highly efficient photocatalytic H 2O 2 production. J Colloid Interface Sci 2022; 627:739-748. [PMID: 35878464 DOI: 10.1016/j.jcis.2022.07.080] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/10/2022] [Accepted: 07/12/2022] [Indexed: 11/25/2022]
Abstract
Graphite carbon nitride (g-C3N5) has been widely used in various photocatalytic reactions due to its higher thermodynamic stability and better electronic properties compared to g-C3N4. However, it is still challenging to endow g-C3N5 with high performance on photocatalytic hydrogen peroxide (H2O2) production. Herein, potassium and iodine are co-doped into g-C3N5 (g-C3N5-K, I) for photocatalytic production of H2O2 with high efficiency. As expected, the photocatalytic H2O2 production rate over the g-C3N5-K, I (2933.4 μM h-1) reaches to 84.22 times as that of g-C3N5. The excellent photocatalytic H2O2 production activity is mainly ascribed to the co-doping of K and I, which significantly improves the capacity of oxygen (O2) adsorption, selectivity of two-electrons oxygen reduction reaction (2e- ORR) and separation efficiency of charge carriers. The density functional theory (DFT) calculations reveal that O2 molecules are more conducive to being adsorbed on g-C3N5-K, I. Besides, the result of excited states further indicates that photo-generated electrons can be directionally driven to the adsorbed O2 molecules, which are effectively activated to form H2O2. The findings will contribute to new insights in designing and synthesizing g-C3N5 based photocatalysts for the H2O2 production.
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Affiliation(s)
- Huinan Che
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing 210098, China
| | - Jian Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing 210098, China
| | - Xin Gao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing 210098, China
| | - Juan Chen
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing 210098, China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing 210098, China
| | - Bin Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore; Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Yanhui Ao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing 210098, China.
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22
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0D/1D BiVO4/CdS Z-scheme nanoarchitecture for efficient photocatalytic environmental remediation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129583] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Debnath B, Singh S, Hossain SM, Krishnamurthy S, Polshettiwar V, Ogale S. Visible Light-Driven Highly Selective CO 2 Reduction to CH 4 Using Potassium-Doped g-C 3N 5. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:3139-3148. [PMID: 35234471 DOI: 10.1021/acs.langmuir.1c03127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Establishment of an efficient and robust artificial photocatalytic system to convert solar energy into chemical fuels through CO2 conversion is a cherished goal in the fields of clean energy and environmental protection. In this work, we have explored an emergent low-Z nitrogen-rich carbon nitride material g-C3N5 (analogue of g-C3N4) for CO2 conversion under visible light illumination. A significant enhancement of the CH4 production rate was detected for g-C3N5 in comparison to that of g-C3N4. Notably, g-C3N5 also showed a very impressive selectivity of 100% toward CH4 as compared to 21% for g-C3N4. The photocatalytic CO2 conversion was performed without using sacrificial reagents. We found that 1% K doping in g-C3N5 enhanced its performance even further without compromising the selectivity. Moreover, 1% K-doped g-C3N5 also exhibited better photostability than undoped g-C3N5. We have also employed density functional theory calculation-based analyses to understand and elucidate the possible reasons for the better photocatalytic performance of K-doped g-C3N5.
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Affiliation(s)
- Bharati Debnath
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) Pune, Maharashtra 411008, India
- Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG-CREST), Kolkata 700091, India
| | - Saideep Singh
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Sk Mujaffar Hossain
- Department of Chemistry and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) Pune, Maharashtra 411008, India
| | - Shrreya Krishnamurthy
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) Pune, Maharashtra 411008, India
| | - Vivek Polshettiwar
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Satishchandra Ogale
- Department of Physics and Centre for Energy Science, Indian Institute of Science Education and Research (IISER) Pune, Maharashtra 411008, India
- Research Institute for Sustainable Energy (RISE), TCG Centres for Research and Education in Science and Technology (TCG-CREST), Kolkata 700091, India
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24
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Zhu D, Huang Z, Wang H, Lu Q, Ruan G, Zhao C, Du F. Sustainable and reusable electrospun g-C3N5/MIL-101(Fe)/poly(acrylonitrile-co-maleic acid) nanofibers for photocatalytic degradation of emerging pharmaceutical pollutants. NEW J CHEM 2022. [DOI: 10.1039/d2nj02029g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To fabricate sustainable and reusable photocatalyst materials is urgent and desirable for removal of emerging pharmaceutical pollutants (EPPs) in environment water samples. In this work, we described the fabrication of...
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25
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Zhang X, Han L, Li M, Qin P, Li D, Zhou Q, Lu M, Cai Z. Nitrogen-rich carbon nitride as solid-phase microextraction fiber coating for high-efficient pretreatment of polychlorinated biphenyls from environmental samples. J Chromatogr A 2021; 1659:462655. [PMID: 34749185 DOI: 10.1016/j.chroma.2021.462655] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 10/21/2021] [Accepted: 10/27/2021] [Indexed: 01/14/2023]
Abstract
A two-dimensional nitrogen-rich carbon nitrogen (C3N5) material was prepared via a facile high temperature thermal polymerization. For the first time, the C3N5 was used as fiber coating of solid-phase microextraction (SPME) to extract and preconcentrate polychlorinated biphenyls (PCBs) before gas chromatography (GC) analysis. The X-ray diffraction, N2 adsorption-desorption, Fourier transform-infrared spectroscopy, thermogravimetric analysis, and X-ray photoelectron spectroscopy were performed to investigate structure, functional groups, thermal stability, bonding type, element composition, and atomic ratio of C3N5. The two-dimensional planar stacking structure was further verified by scanning electron microscopy and transmission electron microscopy. Five PCBs including PCB-4, PCB-12, PCB-29, PCB-52 and PCB-101 were selected as targets to evaluate performance of SPME fiber. Under the optimal conditions, the method showed a good linear range from 0.01 to 1000 ng/mL with the correlation coefficients (R2) higher than 0.9990. Enrichment factors of the method were obtained from 2045 to 3080. The limits of detection (LODs, S/N = 3) and limits of quantification (LOQs, S/N = 10) were calculated as 0.0031-0.0111 ng/mL and 0.01-0.05 ng/mL, respectively. The precisions of intra-day and inter-day were obtained with the relative standard deviations (RSDs) at 1.5-6.6% and 0.8-6.9%, respectively. The fiber-to-fiber producibility was achieved with RSDs ranged from 3.5% to 11.4%. The method was applied to detect PCBs in river water and soil samples. The contents were calculated at 0.040-0.147 ng/mL in water and 0.520-3.218 ng/g in soil. The C3N5 as SPME fiber coating material may be applied to extract and preconcentrate other environmental pollutants which have similar chemical structures with PCBs.
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Affiliation(s)
- Xiaowan Zhang
- Henan International Joint Laboratory of Medicinal Plants Utilization, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China
| | - Lizhen Han
- Henan International Joint Laboratory of Medicinal Plants Utilization, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China
| | - Mengyuan Li
- Henan International Joint Laboratory of Medicinal Plants Utilization, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China
| | - Peige Qin
- Henan International Joint Laboratory of Medicinal Plants Utilization, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China
| | - Dan Li
- Henan International Joint Laboratory of Medicinal Plants Utilization, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China
| | - Qian Zhou
- Henan International Joint Laboratory of Medicinal Plants Utilization, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China
| | - Minghua Lu
- Henan International Joint Laboratory of Medicinal Plants Utilization, School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China.
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR
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26
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Teng M, Shi J, Qi H, Shi C, Wang W, Kang F, Eqi M, Huang Z. Effective enhancement of electron migration and photocatalytic performance of nitrogen-rich carbon nitride by constructing fungal carbon dot/molybdenum disulfide cocatalytic system. J Colloid Interface Sci 2021; 609:592-605. [PMID: 34848061 DOI: 10.1016/j.jcis.2021.11.060] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 12/11/2022]
Abstract
To find a cocatalyst that can replace noble metals, fungal carbon dot (CD) modified molybdenum disulfide (MoS2) cocatalyst system was designed. The composites were prepared by hydrothermal and calcination methods with different ratios of CDs, MoS2 and nitrogen-rich carbon nitride (p-C3N5). p-C3N5 has excellent electronic properties, and MoS2 modified by CDs (D-MoS2) can significantly enhance the photocatalytic performance of p-C3N5 by improving the photogenerated electron migration efficiency. The experiments showed that the developed CDs/MoS2/C3N5 composites exhibited excellent performance in both photocatalytic hydrogen (H2) evolution and methylene blue (MB) degradation, with CMSCN5 (D-MoS2 with 5% mass fraction) showing the best photocatalytic activity. The corresponding H2 evolution rate of CMSCN5 was 444 μmol g-1h-1 and 1.45 times higher than that of unmodified p-C3N5, by 120 min, the removal rate of MB was up to 93.51%. The 5 cycle tests showed that CMSCN5 had great stability. The high charge mobility and high density of H2 evolution active sites of MoS2 nanosheets, together with the electron storage and transfer properties of CDs can obviously improve electron migration and reduce the photogenerated carrier recombination on the p-C3N5 surface. The design and preparation of such composites offer broad prospects for the development of photocatalytic systems with noble metal-free cocatalysts.
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Affiliation(s)
- Min Teng
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Junming Shi
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Houjuan Qi
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Cai Shi
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Weicong Wang
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Fuyan Kang
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Malin Eqi
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Zhanhua Huang
- Key Laboratory of Bio-based Material Science & Technology, Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China.
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27
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Liu T, Wang C, Wang M, Bai J, Wang W, Zhang J, Zhou Q. The improved spatial charge separation and antibiotic removal performance on Z-scheme Zn-Fe2O3/ZnIn2S4 architectures. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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28
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Noble-Metal-Free NixSy-C3N5 Hybrid Nanosheet with Highly Efficient Photocatalytic Performance. Catalysts 2021. [DOI: 10.3390/catal11091089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
The construction of highly efficient, low-cost and noble-metal-free photocatalysts depends on photocatalytic technology. Recently, N-rich C3N5 has been explored as a novel carbon nitride material with a much narrower band gap (~2.2 eV) than that of traditional C3N4 (~2.7 eV). Planting noble-metal-free active sites on C3N5 to improve its photocatalytic activity is of great significance. Herein, 2D NixSy nanosheet is facially loaded on 2D C3N5 using a hydrothermal procedure under a low temperature. Due to the quick separation of photogenerated carries between C3N5 and NixSy, this inexpensive noble-metal-free NixSy-C3N5 hybrid nanosheet is highly efficient and stable as a multifunctional catalyst in various applications, including photocatalytic H2 production from water and NO removal. Impressively, the apparent quantum yield (AQY) value for H2 production reaches 37.0% (at 420 nm) on optimal NixSy-C3N5 hybrids, which is much higher than that of Pt-C3N5 material. This work opens an avenue to the fabrication of low-cost and noble-metal-free catalysts for multifunctional photocatalytic applications.
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Keerthana SP, Yuvakkumar R, Ravi G, Pavithra S, Thambidurai M, Dang C, Velauthapillai D. Pure and Ce-doped spinel CuFe 2O 4 photocatalysts for efficient rhodamine B degradation. ENVIRONMENTAL RESEARCH 2021; 200:111528. [PMID: 34139226 DOI: 10.1016/j.envres.2021.111528] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/06/2021] [Accepted: 06/09/2021] [Indexed: 06/12/2023]
Abstract
Wastewater management is becoming a serious issue worldwide. To enhance the reuse of wastewater, one has to remove toxic pollutants present in it. High amount of dye is present in wastewater, and to remove these dyes is the large scope of this research. Herein, we report production of pure and Ce-doped copper ferrite via hydrothermal route. The synthesized nanoparticles were collected and analyzed by basic characterization techniques. The bandgap energy calculated for pure, 1% Ce, and 2% Ce-doped CuFe2O4 was found to be 2.77, 2.57, and 2.36eV, respectively. Reduction in bandgap was attributed to the doping element. The shape and size of pure and Ce-doped products were investigated using a scanning electron microscope. Agglomeration was observed in the pure copper ferrite sample. In the Ce-doped sample, agglomeration was clearly reduced and the 2% Ce-doped CuFe2O4 sample showed growth of small nanoparticles. They showed complete growth and were arranged in a uniform manner without agglomeration. The surface area of the 2% Ce-CuFe2O4 sample was found to be 65.89 m2/g with 7.02 nm pore diameter. The photocatalytic activity of the prepared material was observed for rhodamine B degradation. The pure and catalyst-added dye was exposed under visible light. The samples were tested for UV. The efficiency obtained for pure dye solution, pristine CuFe2O4-added, and 1% Ce and 2% Ce-doped CuFe2O4-added dye solutions were 48%, 50%, 66%, and 88% within 2 h of irradiation. The 2% Ce-doped CuFe2O4 sample showed excellent photocatalytic activity as the bandgap and morphology were enhanced by doping an appropriate ratio of Ce ions.
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Affiliation(s)
- S P Keerthana
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | - R Yuvakkumar
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.
| | - G Ravi
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.
| | - S Pavithra
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | - M Thambidurai
- COEB, School of Electrical and Electronic Engineering, TPI, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Cuong Dang
- COEB, School of Electrical and Electronic Engineering, TPI, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
| | - Dhayalan Velauthapillai
- Faculty of Engineering and Science, Western Norway University of Applied Sciences, Bergen, 5063, Norway
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30
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Nivetha R, Gothandapani K, Raghavan V, Jacob G, Sellapan R, Kannan AM, Pitchaimuthu S, Pandiaraj S, Almuqrin AH, Alodhayb A, Muthuramamoorthy M, Van Le Q, Jeong SK, Grace AN. NH 2-MIL-125(Ti) doped CdS/Graphene composite as electro and photo catalyst in basic medium under light irradiation. ENVIRONMENTAL RESEARCH 2021; 200:111719. [PMID: 34293309 DOI: 10.1016/j.envres.2021.111719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 07/09/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
The development of active electrocatalysts and photocatalysts for hydrogen evolution reaction (HER) and for environmental remediation is a huge challenge. Research is still underway on the development of low-cost catalytic materials with appreciable efficiency for HER. In the present study, a composite of metal organic framework (MOF) with CdS and graphene (NH2-MIL-125(Ti)/CdS-graphene) composites were developed with different loadings of graphene material via solvothermal technique. Further the electrocatalytic activity of the synthesized catalysts were investigated for HER and photocatalytic degradation of dye. Results show that the synthesized catalyst with a less amount of graphene was more active. HER results showed a less Tafel slope of 70.8 and 61.9 mVdec-1 with 15.6 mA/cm2 and 15.46 mA/cm2 current densities under light on and off conditions. Further the dye degradation activity of the synthesized catalysts was tested with Rhodamine B dye and results showed that the catalyst showed excellent activity for low weight loading of graphene with a degradation efficiency of 95 % and followed pseudo first order kinetic model. Overall results showed that the synthesized composites are promising for HER and photocatalytic applications.
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Affiliation(s)
- Ravi Nivetha
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Kannan Gothandapani
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Vimala Raghavan
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - George Jacob
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Raja Sellapan
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - A M Kannan
- Ira A. Fulton Schools of Engineering, Arizona State University, USA
| | - Sudhagar Pitchaimuthu
- Research Centre for Carbon Solutions, Institute of Mechanical and Processing Engineering, School of Engineering & Physical Science, Heriot-Watt University Edinburgh, EH14 4AS, United Kingdom
| | - Saravanan Pandiaraj
- Department of Self Development Skills, CFY Deanship, King Saud University, Riyadh, Saudi Arabia
| | - Aljawhara H Almuqrin
- Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Abdullah Alodhayb
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | | | - Quyet Van Le
- Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam
| | - Soon Kwan Jeong
- Climate Change Technology Research Division, Korea Institute of Energy Research, Yuseong-gu, Daejeon, 305-343, South Korea.
| | - Andrews Nirmala Grace
- Centre for Nanotechnology Research, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
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31
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Enhanced visible-light photocatalytic activity and recyclability of magnetic core-shell Fe3O4@SiO2@BiFeO3–sepiolite microspheres for organic pollutants degradation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116566] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Li Y, Zhu S, Kong X, Liang Y, Li Z, Wu S, Chang C, Luo S, Cui Z. ZIF-67 derived Co@NC/g-C 3N 4 as a photocatalyst for enhanced water splitting H 2 evolution. ENVIRONMENTAL RESEARCH 2021; 197:111002. [PMID: 33774016 DOI: 10.1016/j.envres.2021.111002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 06/12/2023]
Abstract
Graphitic carbon nitride (g-C3N4), as the one of the most promising photocatalysts, usually relies on noble metal co-catalysts in the photocatalytic water splitting H2 evolution process, which greatly increases the use cost. Here, a zeolite imidazole framework (ZIF-67) derived Co@NC/g-C3N4 composite was constructed through facile thermal condensation of ZIF-67 and melamine. The obtained Co@NC/g-C3N4 composites can drive water splitting H2 evolution without any noble metal co-catalyst under simulated sunlight. The optimal sample exhibits the highest H2 evolution rate of 161 μmol g-1·h-1, which is 6 times of pure g-C3N4. The N doped carbon in carbonized ZIF-67 can not only quickly capture separated electrons from g-C3N4, but also serve as the co-catalyst. The well dispersed cobalt intermediate on carbonized ZIF-67 also play a role in promoting electron conversion. The formation of junction between carbonized ZIF-67 and g-C3N4 could promote quick charge carrier separation and transfer. This work provides a new idea for photocatalytic H2 evolution without noble metal co-catalysis.
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Affiliation(s)
- Yuanyuan Li
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Shengli Zhu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China; School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China; College of Chemistry Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, Fujian, China.
| | - Xiangchen Kong
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China; National Engineering Laboratory for Mobile Source Emission Control Technology, China Automotive Technology & Research Center Co., Ltd., Tianjin, 300300, China
| | - Yanqin Liang
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Zhaoyang Li
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Shuilin Wu
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China
| | - Chuntao Chang
- School of Mechanical Engineering, Dongguan University of Technology, Dongguan, 523808, China.
| | - Shuiyuan Luo
- College of Chemistry Engineering and Materials Science, Quanzhou Normal University, Quanzhou, 362000, Fujian, China
| | - Zhenduo Cui
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300350, China.
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Zhou M, Jing L, Dong M, Lan Y, Xu Y, Wei W, Wang D, Xue Z, Jiang D, Xie J. Novel broad-spectrum-driven g-C 3N 4 with oxygen-linked band and porous defect for photodegradation of bisphenol A, 2-mercaptophenthiazole and ciprofloxacin. CHEMOSPHERE 2021; 268:128839. [PMID: 33228986 DOI: 10.1016/j.chemosphere.2020.128839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/15/2020] [Accepted: 10/30/2020] [Indexed: 06/11/2023]
Abstract
Abundant active oxygen free radicals could efficiently remove refractory organic pollutants. In previous research, the original carbon nitride can form more hydrogen peroxide, however, owing to the limitation of its band structure, the original carbon nitride cannot decompose the hydrogen peroxide to generate more active oxygen free radicals. Herein, this work reports a simple bottom-up synthesis method, which synthesize a broad-spectrum-response carbon nitride (CN-CA) with oxygen-linked band and porous defect structure, while adjusting the band structure, and the introduction of the oxygen-linked band structure can also decompose the hydrogen peroxide produced by the original carbon nitride to form more active oxygen free radicals. Instrumental characterization and analysis of experimental results revealed the important role of oxygen-linked band and porous defects in adjusting the CN-CA energy band structure and improving its visible light absorption. The optimal CN-CA displays an outstanding photocatalytic degradation ability, that degradation rate of bisphenol A (BPA) reaches 99.8% within 150 min, the reaction rate constant of which is 6.77 times higher than that of pure g-C3N4, as also demonstrated with 2-mercaptophenthiazole (MBT) and ciprofloxacin (CIP). Meanwhile, the excellent degradation performance under blue LED (450-462 nm) and green LED (510-520 nm) exhibits the broad-spectrum characteristics of CN-CA. The degradation pathways of BPA and MBT were analyzed via HPLC-MS. Moreover, the primary active species were detected as O2-, OH and h+ based on the trapping experiments and ESR. This research provides a new strategy for g-C3N4 modified by porous defects and oxygen-linked band structure for environmental remediation.
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Affiliation(s)
- Minjing Zhou
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Liquan Jing
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - MingXiang Dong
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Ying Lan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Yuanguo Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Wei Wei
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Duidui Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Zhaoli Xue
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
| | - Di Jiang
- Jiangsu Institute of Scientific and Technical Information, Nanjing University of Science and Technology, Nanjing, 210094, PR China.
| | - Jimin Xie
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013, PR China.
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Magnetic N-rich carbon nitride framework material for the high selectivity extraction and determination of La(III). Talanta 2021; 225:122086. [PMID: 33592797 DOI: 10.1016/j.talanta.2021.122086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/30/2020] [Accepted: 01/03/2021] [Indexed: 11/21/2022]
Abstract
A novel magnetic C3N5 framework material (Fe3O4/C3N5) was developed as a high selectivity extractant for La(III) determination in food samples. The Fe3O4/C3N5 material was synthesized by thermal deammoniation method and has larger surface area (100.3 m2 g-1) and more effective adsorption sites compared with that of individual C3N5 material (19.4 m2 g-1). It was proved that Fe3O4/C3N5 material displayed excellent selectivity and adsorption capacity for La(III). In addition, adsorption isotherm and kinetic data indicated that La(III) adsorption based on Fe3O4/C3N5 material is a monolayer adsorption which is compatible with Langmuir model and follows a pseudo-second-order kinetic equation. By using Fe3O4/C3N5 material as extractant, an analytical method was established with low limits of detection (3σ, n = 6) of 10.4 μg L-1, reasonable recoveries ranged from 86% to 106% and good precision with the RSD less than 10.7%. The analytical method was further applied to the determination of trace La(III) in food sample. It evinced that the concentration of La(III) in sea fish is 13.2 μg kg-1 and the content of 138La is 0.138 μg kg-1, which is 1.03% of total La(III).
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Cui C, Guo R, Ren E, Xiao H, Lai X, Qin Q, Jiang S, Shen H, Zhou M, Qin W. Facile hydrothermal synthesis of rod-like Nb 2O 5/Nb 2CT x composites for visible-light driven photocatalytic degradation of organic pollutants. ENVIRONMENTAL RESEARCH 2021; 193:110587. [PMID: 33307080 DOI: 10.1016/j.envres.2020.110587] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 10/30/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
The MXene-based transition metal oxide composite is a potential candidate for photocatalysts. Rod-like pseudohexagonal phase Nb2O5/Nb2CTx composites were synthesized by a simple hydrothermal oxidation of 2D layered Nb2CTx. The Nb2O5/Nb2CTx composites show superior photocatalytic activity for 98.5% of degradation of Rhodamine B (RhB) for 120 min and 91.2% of tetracycline hydrochloride (TC-HCl) for 180 min under visible light irradiation. The Schottky junction is formed between Nb2O5 nanorods and Nb2CTx and the photo-generated carriers are effectively separated, enhancing the photocatalytic activity of the Nb2O5/Nb2CTx. High photoactivity and cycle stability of Nb2O5/Nb2CTx composites indicate that hydrothermal oxidation of 2D layered Nb2CTx is an alternative to prepare efficient photocatalyst for degradation of organic pollutants.
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Affiliation(s)
- Ce Cui
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Ronghui Guo
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China.
| | - Erhui Ren
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Hongyan Xiao
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Xiaoxu Lai
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Qin Qin
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Shouxiang Jiang
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Hong Shen
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Mi Zhou
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Wenfeng Qin
- Aviation Engineering Institute, Civil Aviation Flight University of China, Guanghan, China
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Photocatalytic properties of SnO2/MoO3 mixed oxides and their relation to the electronic properties and surface acidity. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113035] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Wang L, Li M, Zhang Q, Li F, Xu L. Constructing electron transfer pathways and active centers over W 18O 49 nanowires by doping Fe 3+ and incorporating g-C 3N 5 for enhanced photocatalytic nitrogen fixation. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00503k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A compound constructed from fluffy and porous g-C3N5 with OV-rich Fe-W18O49 was employed in the photocatalytic nitrogen fixation. The formation rate of ammonia reached 131.6 μmol g−1 h−1 when Fe-W18O49/g-C3N5 was employed as the catalyst.
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Affiliation(s)
- Libo Wang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Mohan Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Qiu Zhang
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Fengyan Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
| | - Lin Xu
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education
- College of Chemistry
- Northeast Normal University
- Changchun 130024
- P. R. China
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