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Xu R, Su Y, Ji H, Jiang M, Zhang R, Ding L, Chen Y, Song D. Enhanced detection of 4-nitrophenol in drinking water: ECL sensor utilizing velvet-like graphitic carbon nitride and molecular imprinting. Food Chem 2024; 460:140599. [PMID: 39067383 DOI: 10.1016/j.foodchem.2024.140599] [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: 04/19/2024] [Revised: 06/25/2024] [Accepted: 07/22/2024] [Indexed: 07/30/2024]
Abstract
In this work, a molecularly imprinted electrochemiluminescence (ECL) sensor was developed for selective detection of 4-nitrophenol (4-NP) in drinking water for the first time. By synthesizing velvet-like graphitic carbon nitride (V-g-C3N4) via one-step thermal polycondensation and integrating it with a molecularly imprinted polymer (MIP), the ECL sensor was fabricated. The MIP-modified V-g-C3N4 composites (MIP/V-g-C3N4) were synthesized using a sol-gel method with 4-NP as the template molecule. Under optimal conditions, the ECL sensor exhibited a wide detection range (5 × 10-10-1 × 10-5 mol/L) and a low detection limit (1.8 × 10-10 mol/L). In testing with actual drinking water samples, it displayed high accuracy (recoveries for intraday and inter-day: 93.50-106.2% and 97.00-107.3%, separately) and precision (RSDs for intraday and inter-day: 1.54-4.59% and 1.53-4.28%, respectively). The developed MIP-based ECL sensor demonstrated excellent selectivity, stability, and reproducibility, offering a promising and reliable approach for highly sensitive and selective determination of 4-NP in drinking water.
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Affiliation(s)
- Rui Xu
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Yu Su
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Hongfei Ji
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Man Jiang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Ruizhong Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Lan Ding
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Yanhua Chen
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China; Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
| | - Daqian Song
- College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China; Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, 2699 Qianjin Street, Changchun 130012, China
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2
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Michalska M, Pavlovsky J, Simha Martynkova G, Kratosova G, Hornok V, Nagy PB, Novak V, Szabo T. Comparative study of photocatalysis with bulk and nanosheet graphitic carbon nitrides enhanced with silver. Sci Rep 2024; 14:11512. [PMID: 38769357 PMCID: PMC11106318 DOI: 10.1038/s41598-024-62291-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Accepted: 05/15/2024] [Indexed: 05/22/2024] Open
Abstract
The main goal of this research is to investigate the effectiveness of graphitic carbon nitride (g-C3N4, g-CN) in both bulk and nanosheet forms, which have been surface-modified with silver nanoparticles (Ag NPs), as photocatalysts for the degradation of acid orange 7 (AO7), a model dye. The photodegradation of AO7 dye molecules in water was used to test the potential photocatalytic properties of these powder materials under two different lamps with wavelengths of 368 nm (UV light) and 420 nm (VIS light). To produce Ag NPs (Ag content 0.5, 1.5, and 3 wt%) on the g-CN materials, a new synthesis route based on a wet and low-temperature method was proposed, eliminating the need for reducing agents. The photodegradation activity of the samples increased with increasing silver content, with the best photocatalytic performances achieved for bulk g-CN samples and nanosheet silver-modified samples (with the highest content of 3 wt% Ag) under UV light, i.e., more than 75% and 78%, respectively. The VIS-induced photocatalytic activity of both examined series was higher than that of UV. The highest activities of 92% and 98% were achieved for the 1.5% Ag-modified g-CN bulk and nanosheet materials. This research presents an innovative, affordable, and environmentally friendly chemical approach to synthesizing photocatalysts that can be used for degrading organic pollutants in wastewater treatment.
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Affiliation(s)
- Monika Michalska
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. Listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic.
| | - Jiri Pavlovsky
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. Listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic
| | - Grazyna Simha Martynkova
- Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, 17. Listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic
| | - Gabriela Kratosova
- Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, 17. Listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic
| | - Viktoria Hornok
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla Tér. 1, Szeged, 6720, Hungary
| | - Peter B Nagy
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla Tér. 1, Szeged, 6720, Hungary
| | - Vlastimil Novak
- Department of Chemistry and Physico-Chemical Processes, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. Listopadu 2172/15, Ostrava-Poruba, 708 00, Czech Republic
| | - Tamas Szabo
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla Tér. 1, Szeged, 6720, Hungary
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Nguyen TKA, Trần-Phú T, Ta XMC, Truong TN, Leverett J, Daiyan R, Amal R, Tricoli A. Understanding Structure-Activity Relationship in Pt-loaded g-C 3 N 4 for Efficient Solar- Photoreforming of Polyethylene Terephthalate Plastic and Hydrogen Production. SMALL METHODS 2024; 8:e2300427. [PMID: 37712209 DOI: 10.1002/smtd.202300427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 08/17/2023] [Indexed: 09/16/2023]
Abstract
Coupling the hydrogen evolution reaction with plastic waste photoreforming provides a synergistic path for simultaneous production of green hydrogen and recycling of post-consumer products, two major enablers for establishment of a circular economy. Graphitic carbon nitride (g-C3 N4 ) is a promising photocatalyst due to its suitable optoelectronic and physicochemical properties, and inexpensive fabrication. Herein, a mechanistic investigation of the structure-activity relationship of g-C3 N4 for poly(ethylene terephthalate) (PET) photoreforming is reported by carefully controlling its fabrication from a subset of earth-abundant precursors, such as dicyandiamide, melamine, urea, and thiourea. These findings reveal that melamine-derived g-C3 N4 with 3 wt.% Pt has significantly higher performance than alternative derivations, achieving a maximum hydrogen evolution rate of 7.33 mmolH2 gcat -1 h-1 , and simultaneously photoconverting PET into valuable organic products including formate, glyoxal, and acetate, with excellent stability for over 30 h of continuous production. This is attributed to the higher crystallinity and associated chemical resistance of melamine-derived g-C3 N4 , playing a major role in stabilization of its morphology and surface properties. These new insights on the role of precursors and structural properties in dictating the photoactivity of g-C3 N4 set the foundation for the further development of photocatalytic processes for combined green hydrogen production and plastic waste reforming.
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Affiliation(s)
- Thi Kim Anh Nguyen
- Nanotechnology Research Laboratory, College of Science, Research School of Chemistry, The Australian National University, Canberra, ACT, 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Thành Trần-Phú
- Nanotechnology Research Laboratory, College of Science, Research School of Chemistry, The Australian National University, Canberra, ACT, 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Xuan Minh Chau Ta
- Nanotechnology Research Laboratory, College of Science, Research School of Chemistry, The Australian National University, Canberra, ACT, 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Thien N Truong
- School of Engineering, The Australian National University, Canberra, ACT, 2601, Australia
| | - Josh Leverett
- Particles and Catalysis Research Laboratory, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Rahman Daiyan
- Particles and Catalysis Research Laboratory, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Rose Amal
- Particles and Catalysis Research Laboratory, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Antonio Tricoli
- Nanotechnology Research Laboratory, College of Science, Research School of Chemistry, The Australian National University, Canberra, ACT, 2601, Australia
- Nanotechnology Research Laboratory, Faculty of Engineering, University of Sydney, Sydney, NSW, 2006, Australia
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4
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Zhou Z, Zeng H, Li L, Tang R, Xiong S, Gong D, Huang Y, Deng Y. Internal electric fields drive dual S-scheme heterojunctions: Insights into the role of the triple interlaced lattice. J Colloid Interface Sci 2023; 650:1138-1151. [PMID: 37473474 DOI: 10.1016/j.jcis.2023.07.086] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 07/07/2023] [Accepted: 07/13/2023] [Indexed: 07/22/2023]
Abstract
The internal electric field induced by the lattice interfaces in a heterojunction can facilitate charge transfer, thereby improving the photocatalytic performance. However, the details of the relationship between the lattice interfaces and the charge transfer mechanism in heterojunctions remain unclear. In this study, a Bi2WO6/Bi2O2CO3/C3N4 heterojunction (BBC) with an interlaced lattice was prepared, and the role of the interlaced lattice in charge transfer was revealed. Compared to pristine Bi2O2CO3, Bi2WO6, and C3N4, BBC exhibited an increased ciprofloxacin degradation rate constant (0.0573 min-1). A series of experiments were performed to reveal the role of the interlaced lattice interface in the enhanced photocatalytic performance. The results show that the driving force provided by the interlaced lattice interface changes the charge transfer mechanism from a dual Ⅱ-scheme to a dual S-scheme. This work provides profound insights into the effects of lattice interfaces in heterojunctions and the design of efficient photocatalysts.
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Affiliation(s)
- Zhanpeng Zhou
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Hao Zeng
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Ling Li
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Rongdi Tang
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Sheng Xiong
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Daoxin Gong
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China
| | - Ying Huang
- College of Resources, Hunan Agricultural University, Changsha 410128, China.
| | - Yaocheng Deng
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, China.
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5
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Kumar N, Kumari M, Ismael M, Tahir M, Sharma RK, Kumari K, Koduru JR, Singh P. Graphitic carbon nitride (g-C 3N 4)-assisted materials for the detection and remediation of hazardous gases and VOCs. ENVIRONMENTAL RESEARCH 2023; 231:116149. [PMID: 37209982 DOI: 10.1016/j.envres.2023.116149] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/22/2023] [Accepted: 05/13/2023] [Indexed: 05/22/2023]
Abstract
Graphitic carbon nitride (g-C3N4)-based materials are attracting attention for their unique properties, such as low-cost, chemical stability, facile synthesis, adjustable electronic structure, and optical properties. These facilitate the use of g-C3N4 to design better photocatalytic and sensing materials. Environmental pollution by hazardous gases and volatile organic compounds (VOCs) can be monitored and controlled using eco-friendly g-C3N4- photocatalysts. Firstly, this review introduces the structure, optical and electronic properties of C3N4 and C3N4 assisted materials, followed by various synthesis strategies. In continuation, binary and ternary nanocomposites of C3N4 with metal oxides, sulfides, noble metals, and graphene are elaborated. g-C3N4/metal oxide composites exhibited better charge separation that leads to enhancement in photocatalytic properties. g-C3N4/noble metal composites possess higher photocatalytic activities due to the surface plasmon effects of metals. Ternary composites by the presence of dual heterojunctions improve properties of g-C3N4 for enhanced photocatalytic application. In the later part, we have summarised the application of g-C3N4 and its assisted materials for sensing toxic gases and VOCs and decontaminating NOx and VOCs by photocatalysis. Composites of g-C3N4 with metal and metal oxide give comparatively better results. This review is expected to bring a new sketch for developing g-C3N4-based photocatalysts and sensors with practical applications.
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Affiliation(s)
- Naveen Kumar
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India.
| | - Monika Kumari
- Department of Chemistry, Maharshi Dayanand University, Rohtak, 124001, India
| | - Mohammed Ismael
- Electrical energy storage system, Gottfried Wilhelm Leibniz Universität Hannover, Welfengarten 1, 30167, Hannover, Germany
| | - Muhammad Tahir
- Chemical and Petroleum Engineering Department, UAE University, P.O. Box 15551, Al Ain, United Arab Emirates
| | | | - Kavitha Kumari
- Baba Mastnath University, Asthal Bohar, Rohtak, 124001, India
| | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, South Korea
| | - Pardeep Singh
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
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6
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Majdoub A, Majdoub M, Rafqah S, Zaitan H. Incorporation of g-C 3N 4 nanosheets and CuO nanoparticles on polyester fabric for the dip-catalytic reduction of 4 nitrophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:85940-85952. [PMID: 37395877 DOI: 10.1007/s11356-023-28323-0] [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: 04/03/2023] [Accepted: 06/14/2023] [Indexed: 07/04/2023]
Abstract
In the present work, we present the preparation of a new emerged heterogeneous catalyst (PE/g-C3N4/CuO) by in situ deposition of copper oxide nanoparticles (CuO) over the graphitic carbon nitride (g-C3N4) as the active catalyst and polyester (PE) fabric as the inert support. The synthesized sample (PE/g-C3N4/CuO) "dip catalyst" was studied by using various analytical techniques (Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), scanning electron microscopy and dispersive X-ray spectroscopy (SEM/EDX), and transmission electron microscopy (TEM). The nanocomposite is utilized as heterogeneous catalysts for the 4-nitrophenol reduction in the presence of NaBH4, in aqueous solutions. According to experimental results, PE/g-C3N4/CuO with a surface of 6 cm2 (3 cm × 2 cm) demonstrated the catalyst exhibit excellent catalytic activity with 95% reduction efficiency for only 4 min of reaction and an apparent reaction rate constant (Kapp) of 0.8027 min-1. Further evidence that this catalyst based on prepared PE support can be a good contender for long-lasting chemical catalysis comes from the remarkable stability after 10 repetitions reaction cycles without a noticeably loss in catalytic activity. The novelty of this work consists to fabricate of catalyst based of CuO nanoparticles stabilized with g-C3N4 on the surface of an inert substrate PE, which results in an heterogenous dip-catalyst that can be easily introduced and isolated from the reaction solution with good retention of high catalytic performance in the reduction of 4-nitrophenol.
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Affiliation(s)
- Ali Majdoub
- Processes, Materials and Environment Laboratory (LPME), Department of Chemistry, Faculty of Sciences and Technology of Fez, Sidi Mohamed Ben Abdellah University, B.P. 2202, Fez, Morocco
| | - Mohammed Majdoub
- Laboratory of Materials, Catalysis & Valorization of Natural Resources, Hassan II University, 20000, Casablanca, Morocco
| | - Salah Rafqah
- Analytical and Molecular Chemistry Laboratory, Polydisciplainary Faculty of Safi, Cadi Ayyad University, Safi, Morocco
| | - Hicham Zaitan
- Processes, Materials and Environment Laboratory (LPME), Department of Chemistry, Faculty of Sciences and Technology of Fez, Sidi Mohamed Ben Abdellah University, B.P. 2202, Fez, Morocco.
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7
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Mao X, Guo R, Chen Q, Zhu H, Li H, Yan Z, Guo Z, Wu T. Recent Advances in Graphitic Carbon Nitride Based Electro-Catalysts for CO 2 Reduction Reactions. Molecules 2023; 28:molecules28083292. [PMID: 37110526 PMCID: PMC10146859 DOI: 10.3390/molecules28083292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/19/2023] [Accepted: 03/24/2023] [Indexed: 04/29/2023] Open
Abstract
The electrocatalytic carbon dioxide reduction reaction is an effective means of combating the greenhouse effect caused by massive carbon dioxide emissions. Carbon nitride in the graphitic phase (g-C3N4) has excellent chemical stability and unique structural properties that allow it to be widely used in energy and materials fields. However, due to its relatively low electrical conductivity, to date, little effort has been made to summarize the application of g-C3N4 in the electrocatalytic reduction of CO2. This review focuses on the synthesis and functionalization of g-C3N4 and the recent advances of its application as a catalyst and a catalyst support in the electrocatalytic reduction of CO2. The modification of g-C3N4-based catalysts for enhanced CO2 reduction is critically reviewed. In addition, opportunities for future research on g-C3N4-based catalysts for electrocatalytic CO2 reduction are discussed.
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Affiliation(s)
- Xinyi Mao
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
- Municipal Key Laboratory of Clean Energy Technologies of Ningbo, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Ruitang Guo
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
| | - Quhan Chen
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
- Municipal Key Laboratory of Clean Energy Technologies of Ningbo, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Huiwen Zhu
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
- Municipal Key Laboratory of Clean Energy Technologies of Ningbo, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Hongzhe Li
- College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Zijun Yan
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
- Municipal Key Laboratory of Clean Energy Technologies of Ningbo, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Zeyu Guo
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
- Municipal Key Laboratory of Clean Energy Technologies of Ningbo, University of Nottingham Ningbo China, Ningbo 315100, China
| | - Tao Wu
- Department of Chemical and Environmental Engineering, University of Nottingham Ningbo China, Ningbo 315100, China
- Municipal Key Laboratory of Clean Energy Technologies of Ningbo, University of Nottingham Ningbo China, Ningbo 315100, China
- Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, University of Nottingham Ningbo China, Ningbo 315100, China
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8
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Ultra-thin nanosheet assembled 3D honeycomb-like Zn0.5Cd0.5S for boosting photocatalytic H2 evolution. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Liu X, Yang Z, Li K, Briseghella B, Marano GC, Xu J. Visible light antibacterial potential of cement mortar incorporating Cu-ZnO/g-C 3N 4 nanocomposites. RSC Adv 2023; 13:9448-9456. [PMID: 36968043 PMCID: PMC10034187 DOI: 10.1039/d2ra08281k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/20/2023] [Indexed: 03/24/2023] Open
Abstract
In this work, a hybrid Cu-ZnO/g-C3N4 nanocomposite was synthesized and introduced to fabricate photocatalytic cement mortars by internal mixing. The bactericidal properties of the photocatalytic mortars were explored by using E. coli, S. aureus and P. aeruginosa as a bacteria test strain. The results showed that the Cu-ZnO/g-C3N4 nanocomposite had an enhanced harvesting of visible light energy and exhibited excellent stability during the photocatalytic process, which favored a long-term usage performance. The sterilizing efficiency of the photocatalytic cement mortars improved with an increasing content of Cu-ZnO/g-C3N4 nanocomposites. A possible bactericidal mechanism was proposed based on the active species trapping experiments, verifying that the photogenerated holes (h+) and ˙O2− radicals were the main active species. A hybrid Cu-ZnO/g-C3N4 nanocomposite was synthesized and introduced to fabricate photocatalytic cement mortar whose bactericidal activity was investigated under visible light.![]()
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Affiliation(s)
- Xiaomin Liu
- School of Advanced Manufacturing, Fuzhou UniversityQuanzhou 362200China
| | - Zhengxian Yang
- School of Advanced Manufacturing, Fuzhou UniversityQuanzhou 362200China
- Joint International Research Laboratory of Deterioration and Control of Costal and Marine Infrastructures and Materials, College of Civil Engineering, Fuzhou UniversityFuzhou 350108China
| | - Kang Li
- Joint International Research Laboratory of Deterioration and Control of Costal and Marine Infrastructures and Materials, College of Civil Engineering, Fuzhou UniversityFuzhou 350108China
| | - Bruno Briseghella
- Joint International Research Laboratory of Deterioration and Control of Costal and Marine Infrastructures and Materials, College of Civil Engineering, Fuzhou UniversityFuzhou 350108China
| | - Giuseppe Carlo Marano
- Department of Structural, Geotechnical and Building Engineering, Politecnico di TorinoCorso Duca degli Abruzzi24-10129 TorinoItaly
| | - Jiankun Xu
- Joint International Research Laboratory of Deterioration and Control of Costal and Marine Infrastructures and Materials, College of Civil Engineering, Fuzhou UniversityFuzhou 350108China
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10
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Cui H, Wang Z, Cao G, Wu Y, Song J, Li Y, Zhang L, Mu J, Chou X. Facilitated Photocatalytic Degradation of Rhodamine B over One-Step Synthesized Honeycomb-Like BiFeO 3/g-C 3N 4 Catalyst. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3970. [PMID: 36432256 PMCID: PMC9699307 DOI: 10.3390/nano12223970] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
In the present work, a facile one-step methodology was used to synthesize honeycomb-like BiFeO3/g-C3N4 composites, where the well-dispersed BiFeO3 strongly interacted with the hg-C3N4. The 10BiFeO3/hg-C3N4 could completely degrade RhB under visible light illumination within 60 min. The degradation rate constant was remarkably improved and approximately three times and seven times that of pristine hg-C3N4 and BiFeO3, respectively. This is ascribed to the following factors: (1) the unique honeycomb-like morphology facilitates the diffusion of the reactants and effectively improves the utilization of light energy by multiple reflections of light; (2) the charged dye molecules can be tightly bound to the spontaneous polarized BiFeO3 surface to form the Stern layer; (3) the Z-scheme heterojunction and the ferroelectric synergistically promoted the efficient separation and migration of the photogenerated charges. This method can synchronously tune the micro-nano structure, surface property, and internal field construction for g-C3N4-based photocatalysts, exhibiting outstanding potential in environmental purification.
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Affiliation(s)
- Haoran Cui
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China
- School of Instrument and Electronics, North University of China, Taiyuan 030051, China
| | - Zhipeng Wang
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China
| | - Guoqiang Cao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
| | - Yiwan Wu
- School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Jian Song
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China
| | - Yu Li
- School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, China
| | - Le Zhang
- School of Instrument and Electronics, North University of China, Taiyuan 030051, China
| | - Jiliang Mu
- School of Instrument and Electronics, North University of China, Taiyuan 030051, China
| | - Xiujian Chou
- School of Instrument and Electronics, North University of China, Taiyuan 030051, China
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11
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Lin H, Xiao Y, Geng A, Bi H, Xu X, Xu X, Zhu J. Research Progress on Graphitic Carbon Nitride/Metal Oxide Composites: Synthesis and Photocatalytic Applications. Int J Mol Sci 2022; 23:12979. [PMID: 36361768 PMCID: PMC9658189 DOI: 10.3390/ijms232112979] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/28/2022] [Accepted: 10/11/2022] [Indexed: 12/31/2023] Open
Abstract
Although graphitic carbon nitride (g-C3N4) has been reported for several decades, it is still an active material at the present time owing to its amazing properties exhibited in many applications, including photocatalysis. With the rapid development of characterization techniques, in-depth exploration has been conducted to reveal and utilize the natural properties of g-C3N4 through modifications. Among these, the assembly of g-C3N4 with metal oxides is an effective strategy which can not only improve electron-hole separation efficiency by forming a polymer-inorganic heterojunction, but also compensate for the redox capabilities of g-C3N4 owing to the varied oxidation states of metal ions, enhancing its photocatalytic performance. Herein, we summarized the research progress on the synthesis of g-C3N4 and its coupling with single- or multiple-metal oxides, and its photocatalytic applications in energy production and environmental protection, including the splitting of water to hydrogen, the reduction of CO2 to valuable fuels, the degradation of organic pollutants and the disinfection of bacteria. At the end, challenges and prospects in the synthesis and photocatalytic application of g-C3N4-based composites are proposed and an outlook is given.
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Affiliation(s)
| | | | | | | | | | | | - Junjiang Zhu
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430200, China
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12
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Li J, Wang C, Chen X, Huang M, Fu Q, Li R, Wang Y, Li C, Zhao P, Xie Y, Fei J. A non-enzymatic photoelectrochemical sensor based on g-C 3N 4@CNT heterojunction for sensitive detection of antioxidant gallic acid in food. Food Chem 2022; 389:133086. [PMID: 35526285 DOI: 10.1016/j.foodchem.2022.133086] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 04/04/2022] [Accepted: 04/23/2022] [Indexed: 11/16/2022]
Abstract
Gallic acid (GA) is found in a wide range of natural plants and is relevant to the health of human beings. Here, a photoelectrochemical sensing platform based on g-C3N4@CNT heterojunction has been prepared for the highly sensitive and selective detection of GA. Under the light of xenon lamp, the photocurrent of g-C3N4@CNT is 7 times higher than that of g-C3N4. And the sensor generates 4 times more photocurrent in the presence of GA than without GA. This sensor has a wide linear range from 10 nM to 10 μM with a limit of detection as low as 2 nM. Also, the abundant amino groups of g-C3N4 provide excellent selectivity for the sensor. Furthermore, the sensor can be used for the analysis of GA in black tea samples, which provides a novel and rapid method for the detection of GA in food samples.
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Affiliation(s)
- Jiaodi Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China; Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200241, People's Republic of China
| | - Chenxi Wang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Xiaoling Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Minghui Huang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Qian Fu
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Rongjie Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Yilin Wang
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China; Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200241, People's Republic of China
| | - Chunyan Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Pengcheng Zhao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China.
| | - Yixi Xie
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China; Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, People's Republic of China; Key Laboratory of Polar Materials and Devices, Ministry of Education, East China Normal University, Shanghai 200241, People's Republic of China.
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13
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Azhar U, Bashir MS, Babar M, Arif M, Hassan A, Riaz A, Mujahid R, Sagir M, Suri SUK, Show PL, Chang JS, Khoo KS, Mubashir M. Template-based textural modifications of polymeric graphitic carbon nitrides towards waste water treatment. CHEMOSPHERE 2022; 302:134792. [PMID: 35533933 DOI: 10.1016/j.chemosphere.2022.134792] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/21/2022] [Accepted: 04/27/2022] [Indexed: 06/14/2023]
Abstract
The composite materials based on graphitic carbon nitrides (g-C3N4) are remarkably better semiconductors, but the inherent photocatalytic performance in its generic synthesis form is not up to the mark. Eminence efforts have been made to improve its performance and photocatalytic efficiencies. Recently, extensive investigations have been performed to develop their texturally modified and highly porous structures to get around the big flaws of bulk g-C3N4. One significant disadvantage is the increase in the polycondensation while preparation at 550 °C results in g-C3N4 materials with restricted specific surface area (SSA) (<10 m2/g) and no textured pores. Textural modification has emerged as an efficient and progressive way to improve optical and electronic characteristics. The final texture and shape of CN are influenced by the precursor's interaction with the template. Researchers are interested in developing CN materials with high SSA and changeable textural properties (pore volume and pore size). Based on the literature review it is concluded that the soft templating approach is relatively simple, and straightforward to induce textural changes in the g-CN type materials. This review focused on improving the textural properties of bulk g-C3N4 via templating method, and the major advances in the modified g-C3N4 materials for the treatment of wastewater. The procedures and mechanisms of numerous approaches with varying morphologies are thoroughly explained.
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Affiliation(s)
- Umair Azhar
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim yar Khan, Pakistan
| | - Muhammad Sohail Bashir
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Muhammad Babar
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim yar Khan, Pakistan.
| | - Muhammad Arif
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim yar Khan, Pakistan.
| | - Afaq Hassan
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim yar Khan, Pakistan
| | - Asim Riaz
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim yar Khan, Pakistan
| | - Rana Mujahid
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim yar Khan, Pakistan
| | - Muhammad Sagir
- Department of Chemical Engineering, Khwaja Fareed University of Engineering and Information Technology, Rahim yar Khan, Pakistan
| | - Saadat Ullah Khan Suri
- Balochistan University of Information Technology, Engineering and Management Sciences, Quetta, Pakistan
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty Science and Engineering, University of Nottingham, Malaysia, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Jo-Shu Chang
- Research Centre for Smart Sustainable Circular Economy, Tunghai, 407, Taiwan; Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung, 407, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, 701, Taiwan
| | - Kuan Shiong Khoo
- Faculty of Applied Sciences, UCSI University, UCSI Heights, 56000, Cheras, Kuala Lumpur, Malaysia
| | - Muhammad Mubashir
- Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology and Innovation, 57000, Kuala Lumpur, Malaysia.
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Lorenz F, Moustakas NG, Peppel T, Strunk J. Comparative Studies of Oxygen‐Free Semiconductors in Photocatalytic CO
2
Reduction and Alcohol Degradation. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202200107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Felix Lorenz
- Leibniz-Institut für Katalyse e. V. (LIKAT) Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Nikolaos G. Moustakas
- Leibniz-Institut für Katalyse e. V. (LIKAT) Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Tim Peppel
- Leibniz-Institut für Katalyse e. V. (LIKAT) Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Jennifer Strunk
- Leibniz-Institut für Katalyse e. V. (LIKAT) Albert-Einstein-Straße 29a 18059 Rostock Germany
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15
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Lin B, Xia M, Xu B, Chong B, Chen Z, Yang G. Bio-inspired nanostructured g-C3N4-based photocatalysts: A comprehensive review. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64110-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Kumar Singh A, Das C, Indra A. Scope and prospect of transition metal-based cocatalysts for visible light-driven photocatalytic hydrogen evolution with graphitic carbon nitride. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214516] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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17
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Sun D, Mao J, Wei H, Zhang Q, Cheng L, Yang X, Li P. Efficient Prevention of Aspergillus flavus Spores Spread in Air Using Plasmonic Ag-AgCl/α-Fe 2O 3 under Visible Light Irradiation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:28021-28032. [PMID: 35675545 DOI: 10.1021/acsami.2c06963] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Aspergillus flavus is a kind of widespread fungi that can produce carcinogenic, teratogenic, and mutagenic secondary metabolites known as aflatoxins. Aspergillus flavus mainly spread through the means of fungal spores in air, thus preventing the spores spread is an effective strategy to control aflatoxins contamination from source. Herein, a rapid and efficient control way to prevent the spread of Aspergillus flavus spores in air was demonstrated. Ag-AgCl nanoparticles were combined with tetrahedral α-Fe2O3 to form plasmonic composites that presented 93.65 ± 1.53% prevention rate of Aspergillus flavus spores under 50 min visible light irradiation. The efficient activity was attributed to the synergy effect of Ag including intrinsic disinfection, electron sink, and localized surface plasmon resonance effect, which were proven by photoelectric characterization, density functional theory, and finite difference time domain methods. The calculated work functions of α-Fe2O3, Ag, and AgCl were 3.71, 4.52, and 5.38 eV, respectively, which could accelerate photoinduced carrier transfer through Ag during photoreaction. Moreover, it was found that the intrinsic disinfection of Ag and hydroxyl radical from photocatalytic reaction were the main factors to the prevention of Aspergillus flavus spores, which resulted in the destruction of spore structure and the leakage of intracellular protein with 62.15 ± 2.63 μg mL-1. Most important, it was proven that the composites also showed high activity (90.52 ± 1.26%) to prevent Aspergillus flavus spore spread in the storage process of peanuts. These findings not only provided useful information for an efficient and potential strategy to prevent Aspergillus flavus contamination but also could be as a reference in toxic fungi control.
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Affiliation(s)
- Di Sun
- National Reference Laboratory for Agricultural Testing, Key Laboratory of Detection for Mycotoxins, Laboratory of Quality & Safety Risk Assessment for Oilseed Products (Wuhan), Quality Inspection & Test Center for Oilseed Products, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Jin Mao
- National Reference Laboratory for Agricultural Testing, Key Laboratory of Detection for Mycotoxins, Laboratory of Quality & Safety Risk Assessment for Oilseed Products (Wuhan), Quality Inspection & Test Center for Oilseed Products, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Hailian Wei
- National Reference Laboratory for Agricultural Testing, Key Laboratory of Detection for Mycotoxins, Laboratory of Quality & Safety Risk Assessment for Oilseed Products (Wuhan), Quality Inspection & Test Center for Oilseed Products, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Qi Zhang
- National Reference Laboratory for Agricultural Testing, Key Laboratory of Detection for Mycotoxins, Laboratory of Quality & Safety Risk Assessment for Oilseed Products (Wuhan), Quality Inspection & Test Center for Oilseed Products, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Ling Cheng
- National Reference Laboratory for Agricultural Testing, Key Laboratory of Detection for Mycotoxins, Laboratory of Quality & Safety Risk Assessment for Oilseed Products (Wuhan), Quality Inspection & Test Center for Oilseed Products, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Xianglong Yang
- National Reference Laboratory for Agricultural Testing, Key Laboratory of Detection for Mycotoxins, Laboratory of Quality & Safety Risk Assessment for Oilseed Products (Wuhan), Quality Inspection & Test Center for Oilseed Products, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Peiwu Li
- National Reference Laboratory for Agricultural Testing, Key Laboratory of Detection for Mycotoxins, Laboratory of Quality & Safety Risk Assessment for Oilseed Products (Wuhan), Quality Inspection & Test Center for Oilseed Products, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
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18
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Enhanced Photoelectrocatalytic Activity of TiO2 Nanowire Arrays via Copolymerized G-C3N4 Hybridization. ENERGIES 2022. [DOI: 10.3390/en15124180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Photoelectrocatalytic (PEC) oxidation is an advanced technology that combines photocatalytic oxidation (PC) and electrolytic oxidation (EC). PEC activity can be greatly enhanced by the PC and EC synergy effect. In this work, novel copolymerized g-C3N4 (denoted as CNx)/TiO2 core-shell nanowire arrays were prepared by chemical vapor deposition. CNx were deposited on the surface of TiO2 nanowire arrays using organic monomer 4,5-dicyanidazole and dicyandiamide as copolymerization precursor. TiO2 nanowire arrays provide a direct and fast electron transfer path, while CNx is a visible light responsive material. After CNx deposition, the light response range of TiO2 is broadened to 600 nm. The deposition of CNx shell effectively improves the PC efficiency and PEC efficiency of TiO2. Under visible light irradiation and 1 V bias potential, the rate constant k of PEC degradation of CNx/TiO2 core-shell nanowire arrays is 0.0069 min−1, which is 72% higher than that of pure TiO2 nanowires. The built-in electric field formed in the interface between TiO2 core and CNx shell would effectively promote photogenerated charge separation and PEC activity.
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19
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Enhancement of Phenol degradation, using of novel Z-scheme Bi2WO6/C3N4/TiO2 composite: Catalyst and operational parameters optimization. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114065] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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20
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Martinez B, Chang D, Huang Y, Dong C, Chiu T, Chiang M, Kuo C. Formation of a p‐n heterojunction photocatalyst by the interfacing of graphitic carbon nitride and delafossite
CuGaO
2
. J CHIN CHEM SOC-TAIP 2022. [DOI: 10.1002/jccs.202200083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Benjamin Martinez
- Institute of Chemistry Academia Sinica Taipei Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program Academia Sinica and National Yang Ming Chiao Tung University Taipei Taiwan
- Department of Applied Chemistry National Yang Ming Chiao Tung University Hsinchu Taiwan
| | - Dai‐Ning Chang
- Institute of Chemistry Academia Sinica Taipei Taiwan
- Department of Materials and Mineral Resources Engineering, Institute of Materials Science and Engineering National Taipei University of Technology Taipei Taiwan
| | - Yu‐Cheng Huang
- National Synchrotron Radiation Research Center Hsinchu Taiwan
- Department of Physics Tamkang University New Taipei City Taiwan
| | - Chung‐Li Dong
- National Synchrotron Radiation Research Center Hsinchu Taiwan
- Department of Physics Tamkang University New Taipei City Taiwan
| | - Te‐Wei Chiu
- Department of Materials and Mineral Resources Engineering, Institute of Materials Science and Engineering National Taipei University of Technology Taipei Taiwan
| | - Ming‐Hsi Chiang
- Institute of Chemistry Academia Sinica Taipei Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program Academia Sinica and National Yang Ming Chiao Tung University Taipei Taiwan
- Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung Taiwan
| | - Chun‐Hong Kuo
- Institute of Chemistry Academia Sinica Taipei Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program Academia Sinica and National Yang Ming Chiao Tung University Taipei Taiwan
- Department of Applied Chemistry National Yang Ming Chiao Tung University Hsinchu Taiwan
- National Synchrotron Radiation Research Center Hsinchu Taiwan
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21
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Li J, Li M, Li Y, Guo X, Jin Z. Lotus-leaf-like Bi2O2CO3 nanosheet combined with Mo2S3 for higher photocatalytic hydrogen evolution. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120588] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Wang Y, Lian L, Wang X, Yue B, Ding L, Lou D. Velvet-like carbon nitride as a solid-phase microextraction fiber coating for determination of polycyclic aromatic hydrocarbons by gas chromatography. J Chromatogr A 2022; 1671:462993. [DOI: 10.1016/j.chroma.2022.462993] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/08/2022] [Accepted: 03/23/2022] [Indexed: 11/24/2022]
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23
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The Preparation of g-C3N4/CoAl-LDH Nanocomposites and Their Depollution Performances in Cement Mortars under UV-Visible Light. Catalysts 2022. [DOI: 10.3390/catal12040443] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
In this study, new organic-inorganic g-C3N4/CoAl-LDH nanocomposites were prepared and introduced to fabricate photocatalytic cement mortars by internal mixing, coating, and spraying. The photocatalytic depollution of both g-C3N4/CoAl-LDH and cement mortars was assessed by NOx degradation reaction under UV-visible light irradiation. The study results suggested that the degradation efficiency of g-C3N4/CoAl-LDH nanocomposites improved with an increase in g-C3N4 content. The g-C3N4/CoAl-LDH1.5 nanocomposite displayed the highest NOx degradation capacity, which was about 1.23 and 3.21 times that of pure g-C3N4 and CoAl-LDH, respectively. The photocatalytic cement mortars which were all fabricated using different approaches could effectively degrade the target pollutants and exhibited significant compatibility between g-C3N4/CoAl-LDH and cementitious substrate. Among them, the coated mortars showed strong resistance to laboratory-simulated wearing and abrasion with a small decrease in degradation rate.
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Kim H, Choong CE, Han I, Park CM, Nah IW, Kim JR, Jeon BH, Yoon Y, Jang M. Insight into the role of charge carrier mediation zone for singlet oxygen production over rod-shape graphitic carbon nitride: Batch and continuous-flow reactor. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127652. [PMID: 34775315 DOI: 10.1016/j.jhazmat.2021.127652] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 10/03/2021] [Accepted: 10/27/2021] [Indexed: 06/13/2023]
Abstract
As a new approach of creating the photo-exited electron (e-) and hole (h+) mediation zone for highly selective singlet oxygen (1O2) production, the rod-type graphitic carbon nitride (NCN) has been synthesized from the nitric acid-modified melamine followed by the calcination. The NCN exhibited a higher surface area and surface oxygen adsorption ability than bulk graphitic carbon nitride (BCN). The increment of CO and NHx groups on NCN corresponded to e- and h+ mediation groups, respectively, resulting in higher production of 1O2 than BCN. Moreover, those mediation groups on NCN result in higher recombination efficiency and longer e- decay time. As a result, the optimized NCN-0.5 (derived from 0.5 M of nitric acid-modified melamine) displayed 5.8 times higher kinetic rate constant of atrazine (ATZ) removal under UVA-LED irradiation compared to BCN. This study also evaluated the ATZ degradation pathways and toxicity effect of by-products. In addition, continuous flow experiments using NCN-0.5 showed superior ATZ removal performance with a hybrid concept between a slurry photocatalysis and a continuous stirred tank reactor system using actual effluent obtained from a wastewater treatment plant. Thus, this work provides an insight into the strategy for highly selective 1O2 production and the potential for water purification application.
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Affiliation(s)
- Hyeseong Kim
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul 01897, Republic of Korea
| | - Choe Earn Choong
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul 01897, Republic of Korea; Plasma Bioscience Research Center, Kwangwoon University, 26 Kwangwoon-Ro, Nowon-Gu, Seoul 01899, Republic of Korea.
| | - Ihn Han
- Plasma Bioscience Research Center, Kwangwoon University, 26 Kwangwoon-Ro, Nowon-Gu, Seoul 01899, Republic of Korea
| | - Chang Min Park
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - In Wook Nah
- Center for Energy Convergence, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Jung Rae Kim
- School of Chemical Engineering, Pusan National University, 63 Busandeahak-ro, Geumjeong-Gu, Busan 46241, Republic of Korea
| | - Byong-Hun Jeon
- Department of Earth Resources and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Yeomin Yoon
- Department of Civil and Environmental Engineering, University of South Carolina, Columbia, 300 Main Street, SC 29208, USA
| | - Min Jang
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Nowon-Gu, Seoul 01897, Republic of Korea; Plasma Bioscience Research Center, Kwangwoon University, 26 Kwangwoon-Ro, Nowon-Gu, Seoul 01899, Republic of Korea.
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25
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Cheng CQ, Feng Y, Shi ZZ, Zhou YL, Kang WJ, Li Z, Mao J, Shen GR, Dong CK, Liu H, Du XW. Highly Conjugated Graphitic Carbon Nitride Nanofoam for Photocatalytic Hydrogen Evolution. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:1471-1478. [PMID: 35042330 DOI: 10.1021/acs.langmuir.1c02716] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
As a metal-free photocatalyst, graphitic carbon nitride (g-CN) shows great potential for photocatalytic water splitting, although its performance is significantly limited by structural defects due to incomplete polymerization. In the present work, we successfully synthesize highly conjugated g-CN nanofoam through an iodide substitution technique. The product possesses a high polymerization degree, low defect density, and large specific surface area; as a result, it achieves a hydrogen evolution rate of 9.06 mmol h-1 g-1 under visible light irradiation, with an apparent quantum efficiency (AQE) of 18.9% at 420 nm. Experimental analysis and theoretical calculations demonstrate that the recombination of photogenerated carriers at C-NHx defects was effectively depressed in the nanofoam, giving rise to the high photocatalytic activity.
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Affiliation(s)
- Chuan-Qi Cheng
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yi Feng
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Zi-Zheng Shi
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yun-Long Zhou
- School of Chemistry and Materials, Longyan University, Longyan City, Fujian Province 364012, China
| | - Wen-Jing Kang
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Zhe Li
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Jing Mao
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Gu-Rong Shen
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Cun-Ku Dong
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Hui Liu
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Xi-Wen Du
- Institute of New Energy Materials, School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
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Shen Y, Zhu K, He D, Huang J, He H, Lei L, Chen W. Tetracycline removal via adsorption and metal-free catalysis with 3D macroscopic N-doped porous carbon nanosheets: Non-radical mechanism and degradation pathway. J Environ Sci (China) 2022; 111:351-366. [PMID: 34949364 DOI: 10.1016/j.jes.2021.04.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 04/13/2021] [Accepted: 04/15/2021] [Indexed: 06/14/2023]
Abstract
Recently, metal-based carbon materials have been verified to be an effective persulfate activator, but secondary pollution caused by metal leaching is inevitable. Hence, a green metal-free 3D macroscopic N-doped porous carbon nanosheets (NPCN) was synthesized successfully. The obtained NPCN showed high adsorption capacity of tetracycline (TC) and excellent persulfate (PS) activation ability, especially when calcined at 700 °C (NPCN-700). The maximum adsorption capacity of NPCN-700 was 121.51 mg/g by H-bonds interactions. Moreover, the adsorption process followed pseudo-second-order kinetics model and Langmuir adsorption isotherm. The large specific surface area (365.27 mg/g) and hierarchical porous structure of NPCN-700 reduced the mass transfer resistance and increased the adsorption capacity. About 96.39% of TC was removed after adding PS. The effective adsorption of the catalyst greatly shortened the time for the target organic molecules to migrate to the catalyst. Moreover, the NPCN-700 demonstrated high reusability with the TC removal rate of 80.23% after 4 cycles. Quenching experiment and electron paramagnetic resonance (EPR) test confirmed the non-radical mechanism dominated by 1O2. More importantly, the C = O groups, defects and Graphitic N acted as active sites to generate 1O2. Correspondingly, electrochemical measurement revealed the direct electron transfer pathway of TC degradation. Finally, multiple degradation intermediates were recognized by the LC-MS measurement and three possible degradation pathways were proposed. Overall, the prepared NPCN had excellent application prospects for removal of antibiotics due to its remarkable adsorption and catalytic degradation capabilities.
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Affiliation(s)
- Yaqian Shen
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Ke Zhu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Dongdong He
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Jin Huang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hongmei He
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Lele Lei
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Wenjin Chen
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
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Self-Supporting g-C3N4 Nanosheets/Ag Nanoparticles Embedded onto Polyester Fabric as “Dip-Catalyst” for Synergic 4-Nitrophenol Hydrogenation. Catalysts 2021. [DOI: 10.3390/catal11121533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Herein, we report the design of a cost-effective catalyst with excellent recyclability, simple recuperation and facile recovery, and the examination between the reaction cycles via the development of self-supporting g-C3N4 nanosheets/Ag NPs polyester fabric (PES) using a simple, facile and efficient approach. PES fabrics were coated via a sono-coating method with carbon nitride nanosheets (GCNN) along with an in situ setting of Ag nanoparticles on PES coated GCNN surface producing PES-GCNN/Ag0. The elaborated textile-based materials were fully characterized using FTIR, 13C NMR, XRD, TGA, SEM, EDX, etc. Catalytic performance of the designed “Dip-Catalyst” demonstrated that the as-prepared PES-GCCN/Ag0 has effectively catalyzed the hydrogenation of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of NaBH4. The 3 × 3 cm2 PES-GCNN/Ag0 showed the best catalytic activity, displaying an apparent rate constant (Kapp) equal to 0.43 min−1 and more than 10 reusability cycles, suggesting that the prepared catalyst-based PES fabric can be a strong nominee for sustainable chemical catalysis. Moreover, the coated fabrics exhibited appreciable antibacterial capacity against Staphylococcus epidermidis (S. epidermidis) and Escherichia coli (E. coli). The present study opens up new opportunities for the future design of a low cost and large-scale process of functional fabrics.
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Karimi-Nazarabad M, Goharshadi EK, Mehrkhah R, Davardoostmanesh M. Highly efficient clean water production: Reduced graphene oxide/ graphitic carbon nitride/wood. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119788] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhou M, Ou H, Li S, Qin X, Fang Y, Lee S, Wang X, Ho W. Photocatalytic Air Purification Using Functional Polymeric Carbon Nitrides. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102376. [PMID: 34693667 PMCID: PMC8693081 DOI: 10.1002/advs.202102376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/20/2021] [Indexed: 05/19/2023]
Abstract
The techniques for the production of the environment have received attention because of the increasing air pollution, which results in a negative impact on the living environment of mankind. Over the decades, burgeoning interest in polymeric carbon nitride (PCN) based photocatalysts for heterogeneous catalysis of air pollutants has been witnessed, which is improved by harvesting visible light, layered/defective structures, functional groups, suitable/adjustable band positions, and existing Lewis basic sites. PCN-based photocatalytic air purification can reduce the negative impacts of the emission of air pollutants and convert the undesirable and harmful materials into value-added or nontoxic, or low-toxic chemicals. However, based on previous reports, the systematic summary and analysis of PCN-based photocatalysts in the catalytic elimination of air pollutants have not been reported. The research progress of functional PCN-based composite materials as photocatalysts for the removal of air pollutants is reviewed here. The working mechanisms of each enhancement modification are elucidated and discussed on structures (nanostructure, molecular structue, and composite) regarding their effects on light-absorption/utilization, reactant adsorption, intermediate/product desorption, charge kinetics, and reactive oxygen species production. Perspectives related to further challenges and directions as well as design strategies of PCN-based photocatalysts in the heterogeneous catalysis of air pollutants are also provided.
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Affiliation(s)
- Min Zhou
- Department of Science and Environmental StudiesThe Education University of Hong KongTai Po, New TerritoriesHong KongP. R. China
| | - Honghui Ou
- Department of ChemistryTsinghua UniversityBeijing100084P. R. China
| | - Shanrong Li
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
| | - Xing Qin
- Department of Science and Environmental StudiesThe Education University of Hong KongTai Po, New TerritoriesHong KongP. R. China
| | - Yuanxing Fang
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
| | - Shun‐cheng Lee
- Department of Civil and Environmental EngineeringThe Hong Kong Polytechnic UniversityHong KongP. R. China
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and EnvironmentCollege of ChemistryFuzhou UniversityFuzhou350116P. R. China
| | - Wingkei Ho
- Department of Science and Environmental StudiesThe Education University of Hong KongTai Po, New TerritoriesHong KongP. R. China
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Kim J, Zhang Z, Sun J, Mo S, Yun U, Yun H, Liu L. SnS Nanosheets for Rapid and Effective Bacteria Sterilization Under Near-infrared Irradiation. Chemistry 2021; 27:15434-15439. [PMID: 34476846 DOI: 10.1002/chem.202102268] [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: 06/23/2021] [Indexed: 01/07/2023]
Abstract
Today, the threat of pathogenic bacterial infection worldwide that leads to the increase of mortality rate strongly demands the development of new antibacterial agents that can kill bacteria quickly and effectively. Although there are a lot of antibacterial agents that have been developed so far, few studies on the antibacterial performance of SnS have been investigated at 808 nm laser. Here, we synthesized SnS nanosheets with strong near-infrared absorption performance and excellent antibacterial performance via a simple solvothermal synthesis route. The as-prepared SnS nanosheets showed excellent photothermal conversion efficiency (38.7 %), photodynamic performance, and photostability, and at the same time 99.98 % and 99.7 % sterilization effect against Gram-negative Escherichia coli (E. coli) and Gram-positive Bacillus subtilis (B. subtilis) under near-infrared irradiation (808 nm, 1.5 W/cm2 ). This study suggests that SnS nanosheets could be a promising candidate for antibacterial therapy owing to the synergetic effects of photothermal and photodynamic performance.
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Affiliation(s)
- JongGuk Kim
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin, 300350, China.,Department of Chemical Engineering, Laboratory of Functional nanomaterial, Kim Chaek University of Technology, Pyongyang, 950003, Korea
| | - Ze Zhang
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin, 300350, China
| | - JingYu Sun
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin, 300350, China
| | - ShuDi Mo
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin, 300350, China
| | - UnHyok Yun
- Department of Chemical Engineering, Laboratory of Functional nanomaterial, Kim Chaek University of Technology, Pyongyang, 950003, Korea
| | - HuiGwang Yun
- Department of Chemical Engineering, Laboratory of Functional nanomaterial, Kim Chaek University of Technology, Pyongyang, 950003, Korea
| | - Lu Liu
- Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, 38 Tongyan Rd., Tianjin, 300350, China
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Ren X, Zhang Y, Yang L, Chen Z. Degradation of ofloxacin by peroxymonosulfate activated with cobalt-doped graphitic carbon nitride: Mechanism and performance. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108863] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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32
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Zhang M, Han N, Fei Y, Liu J, Xing L, Núñez-Delgado A, Jiang M, Liu S. TiO 2/g-C 3N 4 photocatalyst for the purification of potassium butyl xanthate in mineral processing wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 297:113311. [PMID: 34280862 DOI: 10.1016/j.jenvman.2021.113311] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/08/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
In the present work, TiO2-graphite-phase-carbon-nitride (TiO2/g-C3N4) was prepared through a hydrothermal method to obtain a new photocatalytic material. This material was characterized by means of scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray energy spectrometer (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), Solid-state UV-Vis diffuse reflectance spectrometry (UV-Vis-DRS) and electron paramagnetic resonance (EPR). The synthesized TiO2/g-C3N4 exhibited homogeneous morphology, in which TiO2 nanoparticles were uniformly distributed on the g-C3N4 nanosheets. Regarding its potential use as photocatalytic material in the treatment of mineral processing wastewater, 18% TiO2/g-C3N4 showed superior photodegradation performance than TiO2 and g-C3N4, to give 97.1% degradation rate under 100 min of simulated light irradiation. The experimental results showed that the successful incorporation of TiO2 on g-C3N4 nanosheets enhanced the spectral response range of TiO2/g-C3N4, and the photocatalytic activity was improved. In view of that, it can be considered that this kind of photocatalytic material has a good prospect in the treatment of mineral processing wastewater, which would have clearly environmental relevance.
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Affiliation(s)
- Minghui Zhang
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255000, PR China; State Key Laboratory of Mineral Processing, Beijing, 100160, PR China
| | - Ning Han
- Department of Materials Engineering, KU Leuven, 3001, Leuven, Belgium.
| | - Yawen Fei
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255000, PR China
| | - Jiaojiao Liu
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255000, PR China
| | - Lingbao Xing
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, China; Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan, 250014, PR China.
| | - Avelino Núñez-Delgado
- Dept. Soil Sci. and Agric. Chem., Engineering Polytech. School, Campus Univ. Lugo, Univ. Santiago de Compostela, Spain
| | - Man Jiang
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, 255000, PR China; State Key Laboratory of Mineral Processing, Beijing, 100160, PR China.
| | - Shaomin Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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Cai L, Wei X, Feng H, Fan G, Gao C, Chen H, Sun X. Antimicrobial mechanisms of g-C 3N 4 nanosheets against the oomycetes Phytophthora capsici: Disrupting metabolism and membrane structures and inhibiting vegetative and reproductive growth. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126121. [PMID: 34020348 DOI: 10.1016/j.jhazmat.2021.126121] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 06/12/2023]
Abstract
To understand the potential of urea-synthesized g-C3N4 nanosheets (0.125-1 mg/mL) as antimicrobial agents against oomycetes, an investigation of the interaction mechanism between g-C3N4 nanosheets and Phytophthora capsici was conducted. Transcription analysis showed that after being exposed to g-C3N4 nanosheets for 1 h, P. capsici triggered a sharp upregulation of antioxidant activities and structural constituents and a downregulation of metabolic pathways, including ATP generation, autophagy disruption, membrane system disorders and other complex adaptive processes. All the life stages of P. capsici, including mycelial growth, sporangium formation, zoospore numbers and zoospore germination were remarkably inhibited and even injured. A mutual mechanism is proposed in this work: ROS stress upon exposure to visible irradiation and, combined with their sharp nanosheet structure, cause perturbations of the cell membrane and induce damage to the ultrastructure of mycelial growth, sporangium and zoospores. Given that the antimicrobial action of g-C3N4 nanosheets were derived from the damage throughout the duration of treatment and was not limited to a single target, these complex mechanisms could favor the avoidance of drug resistance and benefit other oomycetes management. More importantly, in addition to restraining P. capsici infection in host plants, g-C3N4 nanosheets promoted pepper plant growth. Hence, g-C3N4 nanosheets have potential as a new non-metal antimicrobial agent to control oomycotal disease in crops.
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Affiliation(s)
- Lin Cai
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Xuefeng Wei
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Hui Feng
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Guangjin Fan
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Changdan Gao
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Haitao Chen
- Chongqing Tobacco Science Research Institute, Chongqing 400715, China
| | - Xianchao Sun
- College of Plant Protection, Southwest University, Chongqing 400715, China.
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Altan O. Impact of graphitic carbon nitrides synthesized from different precursors on Schottky junction characteristics. Turk J Chem 2021; 45:1057-1069. [PMID: 34707433 PMCID: PMC8517616 DOI: 10.3906/kim-2012-45] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 04/02/2021] [Indexed: 01/06/2023] Open
Abstract
Graphitic carbon nitride (g-CN) has gained wide interest in many areas, such as energy and the environmental remediation as a layered polymeric semiconductor that allows the formation of catalytically active Schottky junctions due to its proper electronic band structure. Interestingly, although it is known that the precursors used in the synthesis, can influence the properties of the g-CN, no detailed study on these effects on Schottky junctions could be found in the literature. In this research, the effects of g-CNs synthesized by thermal polycondensation of different precursors on the photocatalytic efficiency of Schottky junctions were investigated. For this purpose, urea, thiourea, melamine, and guanidine hydrochloride were used as different precursors, while the photocatalytic dehydrogenation of formic acid was used as a test reaction. The Schottky junctions were formed by decorating the as-prepared g-CNs with AgPd alloy nanoparticles (NP), which were synthesized by reduction of Ag and Pd salts with NaBH4. The structural, electronic and charge carrier dynamics of all prepared structures have been fully characterized by TEM, XRD, BET, XPS, UV-Vis DRS, PL, and PL life measurements. The results showed that the charge transfer dynamics of g-CNs surface defects are more effective in the photocatalytic performance of Schottky junctions than in structural features such as the size of the metal NPs or the surface area of the catalysts.
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Affiliation(s)
- Orhan Altan
- Department of Chemistry, Vocational School of Technical Sciences, Mersin University, Mersin Turkey
- Department of Nano Technology and Advanced Materials, Institute of Science, Mersin University, Mersin Turkey
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35
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Freire TM, Sant'Anna C, Yoshihara N, Hu R, Qu J, Alencar LMR, Oliveira da Silva de Barros A, Helal-Neto E, Fernandes LR, Simoes RL, Barja-Fidalgo C, Fechine PBA, Santos-Oliveira R. Biomedical application of graphitic carbon nitrides: tissue deposition in vivo, induction of reactive oxygen species (ROS) and cell viability in tumor cells. NANOTECHNOLOGY 2021; 32:435301. [PMID: 34271563 DOI: 10.1088/1361-6528/ac1540] [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: 04/08/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
The urgency for new materials in oncology is immediate. In this study we have developed the g-C3N4, a graphitic-like structure formed by periodically linked tris-s-triazine units. The g-C3N4has been synthesized by a simple and fast thermal process. XRD has shown the formation of the crystalline sheet with a compacted structure. The graphite-like structure and the functional groups have been shown by Raman and FTIR spectroscopy. TEM image and AFM revealed the porous composed of five or six C-N layers stacked. DRS and Photoluminescence analyses confirmed the structure with band gap of 2.87 eV and emission band at 448 nm in different wavelengths excitation conditions. The biological results showed inhibitory effect on cancer cell lines and non-toxic effect in normal cell lines. To the best of our knowledge, this is the first work demonstrating the cytotoxic effects of 2D g-C3N4in a cancer cell line, without any external or synergistic influence. The biodistribution/tissue accumulation showed that g-C3N4present a tendency to accumulation on the lung in the first 2 h, but after 24 h the profile of the biodistribution change and it is found mainly in the liver. Thus, 2D-g-C3N4showed great potential for the treatment of several cancer types.
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Affiliation(s)
- Tiago Melo Freire
- Group of Chemistry of Advanced Materials (GQMat)- Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará, Fortaleza-CE, 451-970, Brazil
| | - Celso Sant'Anna
- National Institute of Metrology, Quality and Technology, Laboratory of Microscopy Applied to Life Science, Duque de Caxias-RJ, 24250020, Brazil
| | - Natalia Yoshihara
- National Institute of Metrology, Quality and Technology, Laboratory of Microscopy Applied to Life Science, Duque de Caxias-RJ, 24250020, Brazil
| | - Rui Hu
- Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Junle Qu
- Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | | | - Aline Oliveira da Silva de Barros
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Rio de Janeiro-RJ, 21941906, Brazil
| | - Edward Helal-Neto
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Rio de Janeiro-RJ, 21941906, Brazil
| | - Laila Ribeiro Fernandes
- Laboratory of Biology of Endothelial Cells and Angiogenesis (LabAngio), Department of Cell Biology, IBRAG, Universidade do Estado do Rio de Janeiro, Rio de Janeiro-RJ 20550- 900, Brazil
- Zona Oeste State University, Laboratory of Nanoradiophasrmacy and Strategic Biomaterials, Rio de Janeiro-RJ, 220000, Brazil
| | - Rafael L Simoes
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Rio de Janeiro-RJ, 21941906, Brazil
- Zona Oeste State University, Laboratory of Nanoradiophasrmacy and Strategic Biomaterials, Rio de Janeiro-RJ, 220000, Brazil
- Laboratory of Cellular and Molecular Pharmacology, Department of Cell Biology, IBRAG, Universidade do Estado do Rio de Janeiro, Rio de Janeiro-RJ 21040900, Brazil
| | - Christina Barja-Fidalgo
- Laboratory of Cellular and Molecular Pharmacology, Department of Cell Biology, IBRAG, Universidade do Estado do Rio de Janeiro, Rio de Janeiro-RJ 21040900, Brazil
| | - Pierre B A Fechine
- Group of Chemistry of Advanced Materials (GQMat)- Department of Analytical Chemistry and Physical-Chemistry, Federal University of Ceará, Fortaleza-CE, 451-970, Brazil
| | - Ralph Santos-Oliveira
- Brazilian Nuclear Energy Commission, Nuclear Engineering Institute, Laboratory of Nanoradiopharmacy and Synthesis of New Radiopharmaceuticals, Rio de Janeiro-RJ, 21941906, Brazil
- Zona Oeste State University, Laboratory of Nanoradiophasrmacy and Strategic Biomaterials, Rio de Janeiro-RJ, 220000, Brazil
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Tan Y, Wei S, Liu X, Pan B, Liu S, Wu J, Fu M, Jia Y, He Y. Neodymium oxide (Nd 2O 3) coupled tubular g-C 3N 4, an efficient dual-function catalyst for photocatalytic hydrogen production and NO removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 773:145583. [PMID: 33582359 DOI: 10.1016/j.scitotenv.2021.145583] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/29/2021] [Accepted: 01/29/2021] [Indexed: 06/12/2023]
Abstract
Graphitic carbon nitride (g-C3N4) has emerged as a most promising photocatalyst, non-toxicity and low density, but it is plagued by low activity due to the small specific surface area and poor quantum efficiency. Morphological engineering and coupling with other materials to form hybrids have proven to be effective strategies for enabling high photocatalytic performances. Here, neodymium oxide (Nd2O3) coupled tubular g-C3N4 composites had been facilely synthesized by a solvent evaporation and high-temperature calcination method to realize efficient photocatalytic activity of hydrogen production and NO removal. A series of characterizations, such as XRD, ESR, in-situ DRIFTS, etc., were used to analyze the physical and chemical properties of the bifunctional photocatalyst, which demonstrated that the composite material had more active sites and a faster electron transfer rate. The optimal sample (1 wt% Nd2O3/CN-T) had a H2 generation rate of 4355.34 μmol·g-1·h-1, which was 9.46 times than that of original g-C3N4 obtained through heating melamine (CN-M). In addition, the NO removal rate was also 32.32% higher than that of original CN-M. On the basis of the above photocatalytic experimental results and characterizations, a possible mechanism or pathway was proposed and illustrated. This work could provide a feasible strategy to fabricate tubular g-C3N4-based composites with rare earth metal oxides (dual-factor regulation) to simultaneously enhance photocatalytic hydrogen production and NO removal efficiently (double application).
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Affiliation(s)
- Yuwei Tan
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Siping Wei
- Department of Medicinal Chemistry, School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Xingyan Liu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China.
| | - Baoyu Pan
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Shike Liu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Jie Wu
- National-local Joint Engineering Laboratory for Road Engineering and Disaster Prevention and Mitigation Technology in Mountainous Areas, China Merchants Chongqing Communications Technology Research & Design Institute CO., LTD., Chongqing 400067, China.
| | - Min Fu
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China
| | - Yiming Jia
- Department of Chemistry "G. Ciamician", University of Bologna, Ravenna Campus, 48121 Ravenna, Italy
| | - Youzhou He
- Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China.
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Chen F, Liang W, Qin X, Jiang L, Zhang Y, Fang S, Luo D. Ag@AgCl Photocatalyst Loaded on the 3D Graphene/PANI Hydrogel for the Enhanced Adsorption‐Photocatalytic Degradation and In Situ SERS Monitoring Properties. ChemistrySelect 2021. [DOI: 10.1002/slct.202100580] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Fenghua Chen
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Weiwei Liang
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Xiaoyun Qin
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Liying Jiang
- Zhengzhou University of Light Industry School of Electrical and Information Engineering Zhengzhou 450002 Henan P. R. China
| | - Yonghui Zhang
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Shaoming Fang
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Dan Luo
- Chinese Academy of Sciences CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems 100083 Beijing P.R. China
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38
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Fei W, Gao J, Li N, Chen D, Xu Q, Li H, He J, Lu J. A visible-light active p-n heterojunction NiFe-LDH/Co 3O 4 supported on Ni foam as photoanode for photoelectrocatalytic removal of contaminants. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123515. [PMID: 32717547 DOI: 10.1016/j.jhazmat.2020.123515] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/29/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Light and electricity are the most prevalent energy sources in natural environment. Herein, a visible-light active Ni foam@NiFe-LDH/Co3O4 composite was successfully prepared by loading 1D Co3O4 nanowires on the surface of 2D NiFe-LDH nanosheets to be a p-n heterojunction supported on the 3D Ni foam through hydrothermal method, which can be used as photoanode directly for photoelectrocatalytic (PEC) process to simultaneously remove bisphenol (BPA) and Cr(VI) from water. This unique Ni foam-based photoanode modified by NiFe-LDH/Co3O4 heterojunction can fully expose the active sites, enhance visible-light absorption and facilitate the migration and separation of photogenerated carriers, thus obtained a boosted efficiency for simultaneous removal of BPA and Cr(VI) under a low applied voltage. Furthermore, the convenient recyclability and excellent stability of the as-prepared Ni foam@NiFe-LDH/Co3O4 also show a great potential in environmental purification.
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Affiliation(s)
- Weihua Fei
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jie Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China
| | - Najun Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China; National Center of International Research on Intelligent New Nanomaterials and Detection Technologies in Environmental Protection, Suzhou, Jiangsu 215123, China.
| | - Dongyun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China; National Center of International Research on Intelligent New Nanomaterials and Detection Technologies in Environmental Protection, Suzhou, Jiangsu 215123, China
| | - Qingfeng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China; National Center of International Research on Intelligent New Nanomaterials and Detection Technologies in Environmental Protection, Suzhou, Jiangsu 215123, China
| | - Hua Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China; National Center of International Research on Intelligent New Nanomaterials and Detection Technologies in Environmental Protection, Suzhou, Jiangsu 215123, China
| | - Jinghui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China; National Center of International Research on Intelligent New Nanomaterials and Detection Technologies in Environmental Protection, Suzhou, Jiangsu 215123, China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, China; National Center of International Research on Intelligent New Nanomaterials and Detection Technologies in Environmental Protection, Suzhou, Jiangsu 215123, China.
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39
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Raza W, Ahmad K. Visible Light-Driven Photocatalysts for Environmental Applications Based on Graphitic Carbon Nitride. HANDBOOK OF NANOMATERIALS AND NANOCOMPOSITES FOR ENERGY AND ENVIRONMENTAL APPLICATIONS 2021. [DOI: 10.1007/978-3-030-36268-3_200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
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40
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Aliabadi HM, Zargoosh K, Afshari M, Dinari M, Maleki MH. Synthesis of a luminescent g-C 3N 4–WO 3–Bi 2WO 6/SrAl 2O 4:Eu 2+,Dy 3+ nanocomposite as a double z-scheme sunlight activable photocatalyst. NEW J CHEM 2021. [DOI: 10.1039/d0nj05529h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Synthesis of the phosphorescent double z-scheme g-C3N4–WO3–Bi2WO6/SrAl2O4:Eu2+,Dy3+ nanocomposite especially suitable for the removal of pollutants under cloudy weather.
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Affiliation(s)
| | - Kiomars Zargoosh
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | - Mohaddeseh Afshari
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
| | - Mohammad Dinari
- Department of Chemistry
- Isfahan University of Technology
- Isfahan 84156-83111
- Iran
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41
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Zhang W, Bian Z, Xin X, Wang L, Geng X, Wang H. Comparison of visible light driven H 2O 2 and peroxymonosulfate degradation of norfloxacin using Co/g-C 3N 4. CHEMOSPHERE 2021; 262:127955. [PMID: 33182160 DOI: 10.1016/j.chemosphere.2020.127955] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/24/2020] [Accepted: 08/07/2020] [Indexed: 06/11/2023]
Abstract
As common advanced oxidation processes, Fenton-like and peroxymonosulfate (PMS) processes have received enormous attention due to their high efficiency in the pollutants degradation. In this study, the Co/g-C3N4 photocatalyst was prepared by facial calcination strategy and used to evaluate the behavior of the Co/g-C3N4/H2O2 and Co/g-C3N4/PMS systems for norfloxacin (NOR) photocatalytic degradation under visible light irradiation. The composite photocatalysts exhibited better performance compared to that of pure g-C3N4 due to the efficient separation of electron-hole pairs and visible light absorption. The Co/g-C3N4/PMS system possessed better photocatalytic performance than the Co/g-C3N4/H2O2 system, where the degradation ratio of NOR and removal ratio of total organic carbon (TOC) were 96.4% and 54%, respectively, in 10 min. The photocatalytic mechanism was investigated using reactive species trapping experiments and electron spin-resonance spectroscopy (ESR). ⋅OH and SO4⋅- were the dominant reaction species in the Co/g-C3N4/H2O2 and Co/g-C3N4/PMS systems, respectively. According to the analysis of the NOR degradation path, SO4⋅- could attack the C-H bond on the piperazine ring or quinolone group of NOR, which resulted in it more active and accelerating the destruction of NOR with SO4⋅- and ⋅OH. The destruction of the quinolone group was the main pathway in the H2O2 process, while the destruction of the piperazine ring was the main pathway in the PMS process. In sum, the Co/g-C3N4/PMS process had a higher photocatalytic activity and economic applicability.
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Affiliation(s)
- Wenhai Zhang
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, PR China
| | - Zhaoyong Bian
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, PR China.
| | - Xin Xin
- Beijing Key Laboratory of Urban Hydrological Cycle and Sponge City Technology, College of Water Sciences, Beijing Normal University, Beijing, 100875, PR China
| | - Li Wang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China
| | - Xinle Geng
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China
| | - Hui Wang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, PR China.
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42
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Zhang H, Zhang X, Zhu M, Li H, Zhao Y, Han X, Jin L, Shan H. Antibacterial Performance of a Gold-Loaded g-C 3 N 4 Nanocomposite System in Visible Light-Dark Dual Mode. Chempluschem 2020; 85:2722-2730. [PMID: 33369148 DOI: 10.1002/cplu.202000676] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/14/2020] [Indexed: 11/10/2022]
Abstract
Semiconductor photocatalysis technology, which can kill pathogenic microorganisms in a green and broad-spectrum way, is a new research field with great application potential. Due to the dependence on light, semiconductor materials have the problems of low utilization rate of sunlight and inactivation under dark conditions. A simple Au-loaded g-C3 N4 (Au/g-C3 N4 ) nanocomposites was studied. Under dark conditions, the antibacterial efficiency of 1.2 % Au/g-C3 N4 reached 99.1 % relative to 105 CFU (Colony-FormingUnits)/mL E. coli. Under light conditions, the antibacterial efficiency of 0.9 % Au/g-C3 N4 reached 94.1 % relative to 107 CFU/mL E. coli. The influence of contact time, Au loading and bacterial concentration on its antibacterial performance under dark conditions was discussed in detail. Through photoelectrochemistry, SEM, TEM and reactive oxygen species (ROS) detection the microscopic charge behaviour was revealed in the system, and a light-dark dual-mode antibacterial mechanism was proposed.
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Affiliation(s)
- Hongda Zhang
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Xin Zhang
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Minghang Zhu
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Haiyan Li
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Yan Zhao
- School of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Xuerong Han
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Lihong Jin
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun, 130022, P. R. China
| | - Haixia Shan
- Press of Jilin University, Changchun, 130022, P. R. China
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43
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Li Y, Lu Y, Wang Y, Dong L, Chao M, Sun J, Zhao Z, Zhang J. One-step synthesis of high photocatalytic graphitic carbon nitride porous nanosheets. NANOTECHNOLOGY 2020; 31:464001. [PMID: 32759479 DOI: 10.1088/1361-6528/abacf1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
As a metal-free photocatalyst, graphitic carbon nitride (g-C3N4) has attracted tremendous attention. Preparation of porous few-layer g-C3N4 nanosheets has been proven to be an effective strategy to obtain high photocatalytic performance. At present, most methods are expensive, time-consuming or complicated. Here, a low-cost, facile and environment-friendly one-step synthesis method of porous few-layer g-C3N4 nanosheets is designed by introducing water in the precursor. Straightforward calcination of the precursor, which decomposes to form ammonia, can produce g-C3N4 nanosheets with the assistance of water. Under the visible light (>400 nm), the photocatalytic H2 evolution performance of the so-obtained nanosheets is 3214 μmol · g-1 · h-1, which is 17.3 times of the original bulk g-C3N4. The apparent quantum yield is 27% under the 380 nm monochromatic light irradiation.
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Affiliation(s)
- Yang Li
- Key Laboratory of Micro-nano Measurement, Manipulation and Physics (Ministry of Education), School of Physics, Beihang University, Beijing 100191, People's Republic of China
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44
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V VK, Avisar D, V LP, Betzalel Y, Mamane H. Rapid visible-light degradation of EE2 and its estrogenicity in hospital wastewater by crystalline promoted g-C 3N 4. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122880. [PMID: 32768817 DOI: 10.1016/j.jhazmat.2020.122880] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 04/30/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Metal-free, chemically activated crystalline graphitic carbon nitride (g-C3N4) nanorods with enhanced visible-light photoactivity demonstrated rapid photodegradation of 17α-ethinylestradiol (EE2) in water and real hospital wastewater. Pure g-C3N4 and another three crystalline promoted g-C3N4 photocatalysts developed by hydrothermal method were characterized by, High-Resolution Transmission Electron Microscopy (HRTEM), X-ray diffraction (XRD), Fourier-Transform Infrared spectroscopy (FTIR), Brunauer-Emmett-Teller (BET), Photoluminescence (PL), Electron spin resonance (ESR), X-ray Photoelectron Spectroscopy (XPS) and Diffuse Reflectance Spectroscopy (DRS). Hydrothermal-based chemical activation did not alter the crystal structure, functional group or surface morphology, but it enhanced the specific surface area of activated g-C3N4 due to intralayer delamination and depolymerization of g-C3N4. Compared to pure g-C3N4, the activated g-C3N4-3 demonstrated efficient degradation of EE2 (<30 min, 3 mg/l) by visible wavelengths of the solar spectrum. This work provides advanced insight into the construction of heterojunction visible-light photocatalysts and production of O2- via reduction of O2 with photogenerated electrons. Proposed and derived mechanism for photodegradation of EE2 by g-C3N4-3 using gas chromatography-mass spectrometry (GCMS). Yeast Estrogen Screen (YES) was performed to evaluate the estrogenicity of treated water samples. Efficient removal of EE2 estrogenic activity (<45 min, 3 mg/l) was achieved using the visible light-activated g-C3N4. Estrogenicity removal rate corresponded well with EE2-degradation rate.
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Affiliation(s)
- Vinod Kumar V
- School of Mechanical Engineering, Water Research Center, Environmental Engineering Program, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel.
| | - Dror Avisar
- The Water Research Center, The Hydro-Chemistry Laboratory, Porter School for Environment and Earth Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Lakshmi Prasanna V
- The Water Research Center, The Hydro-Chemistry Laboratory, Porter School for Environment and Earth Sciences, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Yifaat Betzalel
- School of Mechanical Engineering, Water Research Center, Environmental Engineering Program, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
| | - Hadas Mamane
- School of Mechanical Engineering, Water Research Center, Environmental Engineering Program, Faculty of Engineering, Tel Aviv University, Tel Aviv, 69978, Israel
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45
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Li Z, Ge K, Yang K, Wang S, Li X, He J, Fu C, Ye J, Zhang Y, Yang Y. Z‐scheme 3 D g‐C
3
N
4
/TiO
2−x
Heterojunctions with High Photocatalytic Efficiency. ChemistrySelect 2020. [DOI: 10.1002/slct.202003150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhenxing Li
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Kai Ge
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Kai Yang
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Shuang Wang
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Xuehan Li
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Jiahui He
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Congcong Fu
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Jin Ye
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Yue Zhang
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
| | - Yongfang Yang
- Institute of Polymer Science and Engineering Hebei Key Laboratory of Functional Polymers Hebei University of Technology Tianjin 300130 P. R. China
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46
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Dai Z, Sun Y, Zhang H, Ding D, Li L. Photocatalytic reduction of U(VI) in wastewater by mGO/g-C 3N 4 nanocomposite under visible LED light irradiation. CHEMOSPHERE 2020; 254:126671. [PMID: 32334243 DOI: 10.1016/j.chemosphere.2020.126671] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/17/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
Efficient elimination of U(VI) from uranium wastewater is an urgent task for sustainable nuclear energy and environmental protection. In this study, magnetic graphene oxide decorated graphitic carbon nitride (mGO/g-C3N4) nanocomposite was prepared and used for photocatalytic reduction of U(VI) in wastewater under visible LED light irradiation for the first time. The batch experiments indicated that the mGO/g-C3N4 (mGCN) nanocomposite could efficiently reduce U(VI) under visible LED light, and a high U(VI) extraction capacity of 2880.6 mg/g was obtained with an extraction efficiency of 96.02%. The transmission electron microscopy (TEM) elemental mapping, X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses demonstrated that the soluble U(VI) was immobilized by transforming it to metastudtite ((UO2)O2·2H2O) by mGCN nanocomposite under visible LED light irradiation. This work indicated that the mGCN is a promising visible light catalyst for treatment of uranium wastewater.
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Affiliation(s)
- Zhongran Dai
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
| | - Yusu Sun
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
| | - Hui Zhang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
| | - Dexin Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China.
| | - Le Li
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
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47
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Roy S. Tale of Two Layered Semiconductor Catalysts toward Artificial Photosynthesis. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37811-37833. [PMID: 32805975 DOI: 10.1021/acsami.0c11245] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The ever-increasing reliance on nonrenewable fossil fuels due to massive urbanization and industrialization created problems such as depletion of the primary feedstock and raised the atmospheric CO2 levels causing global warming. A smart and promising approach is artificial photosynthesis that photocatalytically valorizes CO2 into high-value chemicals. The inexpensive layered semiconductors like g-C3N4 and rGO or GO have the potential to make the process practically feasible for real applications. The suitable band positions with respect to the reduction potentials coupled with the typical surface properties of these layered semiconductors play a beneficial role in photoreduction of CO2. Additionally, the creation of heterojunction interfaces to achieve the Z-scheme by anchoring g-C3N4 and rGO with another semiconductor with proper band alignment and dispersing plasmonic nano metals to obtain Schottky barriers on the layered surfaces also help retarding the electron-hole recombination and boost up the catalytic efficacy. Extensive exploration happened in recent years toward artificial photosynthesis over these materials, which needs a critical compendium. Surprisingly, in spite of the recent explosion of studies on photocatalytic reduction of CO2 over metal-free semiconductors, there is not a single review on comparing the mechanistic aspects of photoreduction of CO2 over the layered semiconductors g-C3N4 and rGO. This review stands out as a unique documentation, where the mechanism of photocatalytic reduction of CO2 over this set of materials is critically examined in the context of band and surface modifications. An overall conclusion and outlook at the end indicates the need to develop prototypes for artificial photosynthesis with these well-studied semiconducting layered materials to yield solar fuels.
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Affiliation(s)
- Sounak Roy
- Department of Chemistry, Birla Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Hyderabad 500078, India
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48
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Li L, Liang M, Huang J, Zhang S, Liu Y, Li F. Fe and Cu co-doped graphitic carbon nitride as an eco-friendly photo-assisted catalyst for aniline degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:29391-29407. [PMID: 32440869 DOI: 10.1007/s11356-020-08148-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 02/19/2020] [Indexed: 05/25/2023]
Abstract
A novel bimetallic coordinated g-C3N4 with Fe2O3 composite catalyst (FeCu-g-C3N4) was synthesized by simple calcination of Fe3+/Cu2+/melamine precursor. Its catalytic performance was analyzed via photodegrading aniline. The X-ray diffraction (XRD), field emission scanning electronic microscopy (FESEM), Fourier transform infrared (FT-IR), and X-ray photoelectron spectroscopy (XPS) were employed to characterize the composition and structure of the catalysts. Results indicated that Fe mainly distributed in the Fe(III)-N coordination form and partly in Fe2O3 lattice, and Cu inserted at the interstitial positions of g-C3N4 in the Cu(I)-N form. The great optical property was also proved by ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), photoluminescence (PL) spectroscopy, and photocurrent responses. The heterogeneous photo-assisted catalyst exhibited excellent performance in activation of H2O2, resulting in 80% decomposition of aniline with low metal leaching in 6 h. The incorporation of Cu elevated the performance of degradation compared to that only iron doped. A synergistic catalytic effect between solid Cu(I) and Fe(III) accelerated the reduction of Fe(III). The ·OH and 1O2 were confirmed as major reactive oxygen species (ROS) identified by scavenging experiments and ESR, and e- was the most essential since it not only led to the generation of ROS but also participated in the circulation of Fe3+/Fe2+, Cu2+/Cu+, and Fe3+/Cu+. Furthermore, the possible catalytic mechanism was proposed based on the analysis.
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Affiliation(s)
- Li Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China.
| | - Ming Liang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Jun Huang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Sai Zhang
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Yuan Liu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
| | - Fangyun Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, College of Environment and Ecology, Chongqing University, Chongqing, 400045, China
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49
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Shiravand G, Badiei A, Goldooz H, Karimi M, Ziarani GM, Faridbod F, Ganjali MR. A Fluorescent g-C3N4 Nanosensor for Detection of Dichromate Ions. CURR ANAL CHEM 2020. [DOI: 10.2174/1573411014666180627150248] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Background:
Dichromate (Cr2O7
2-) ion is one of the carcinogenic and toxic spices in
environment which can easily contaminate the environment due to its high solubility in water. Therefore,
a lot of attention has been focused on the detection of Cr2O7
2- with high sensitivity and selectivity.
Methods:
In present work, nitrogen-rich precursor was used for synthesizing graphitic carbon nitride
(g-C3N4) nanostructures through hydrothermal oxidation of g-C3N4 nanosheets. The prepared
nanostructures show two distinct fluorescence emissions centered at 368 and 450 nm which are highly
sensitive toward Cr2O7
2- ions.
Results:
The as-prepared g-C3N4 was characterized by several techniques such as Fourier-Transform
Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) and
fluorescence emission spectra. The XRD pattern of prepared nanostructures illustrated two diffraction
patterns (at 13.4° and 27.6°) indicating tri-s-tri-azine-based structures. The g-C3N4 exhibited good selectivity
and sensitivity toward Cr2O7
2- among other anions. According to titration test, the detection
limit and stern-volmer constant (Ksv) were calculated as 40 nM and 0.13×106 M-1, respectively. The
investigation of quenching mechanism shows that Cr2O7
2- may form hydrogen bonding with surface
groups of g-C3N4 (such as NH2, OH and COOH) resulted in more fluorescence quenching in comparison
with the pure inner filter effect.
Conclusion:
The g-C3N4 nanostructures were successfully synthesized through the hydrothermal oxidation.
The as-prepared g-C3N4 can be used as a highly sensitive fluorescent probe for the selective
determination of Cr2O7
2 ion among other anions. The quenching mechanism was experimentally studied.
According to reliable responses in real sample tests, it can be proposed that g-C3N4 nanostructure
is a suitable sensitive nanosensor for detection of Cr2O7
2 ions in aqueous media.
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Affiliation(s)
- Ghasem Shiravand
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Hassan Goldooz
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Mehdi Karimi
- School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Ghodsi M. Ziarani
- Department of Chemistry, Faculty of Science, Alzahra University, Tehran, Iran
| | - Farnoush Faridbod
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
| | - Mohammad R. Ganjali
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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50
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Vikrant K, Kim KH, Dong F, Giannakoudakis DA. Photocatalytic Platforms for Removal of Ammonia from Gaseous and Aqueous Matrixes: Status and Challenges. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02163] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Kumar Vikrant
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Fan Dong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China
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