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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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Wu H, Quan Y, Liu M, Tian X, Ren C, Wang Z. Synthesis of AgBr/Ti 3C 2@TiO 2 ternary composite for photocatalytic dehydrogenation of 1,4-dihydropyridine and photocatalytic degradation of tetracycline hydrochloride. RSC Adv 2023; 13:21754-21768. [PMID: 37476041 PMCID: PMC10354501 DOI: 10.1039/d3ra02164e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 07/10/2023] [Indexed: 07/22/2023] Open
Abstract
In this work, AgBr/Ti3C2@TiO2 ternary composite photocatalyst was prepared by a solvothermal and precipitation method with the aims of introducing Ti3C2 as a cocatalyst and TiO2 as a compositing semiconductor. The crystal structure, morphology, elemental state, functional groups and photoelectrochemical properties were studied by XRD, SEM, TEM, XPS, FI-IR and EIS. The photocatalytic performances of the composites were investigated by the photodehydrogenation of diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate (1,4-DHP) and the photodegradation of tetracycline hydrochloride (TCH) under visible light irradiation (λ > 400 nm). The AgBr/Ti3C2@TiO2 composite photocatalyst showed enhanced photocatalytic performance in both photocatalytic reactions. The photocatalytic activity of the composite photocatalyst is dependent on the proportional content of Ti3C2@TiO2. With optimized Ti3C2@TiO2 proportion, the photocatalytic ability of the AgBr/Ti3C2@TiO2 composite was 24.5 times as high as that of Ti3C2@TiO2 for photodehydrogenation of 1,4-DHP and 1.9 times as high as that of pure AgBr for photodegradation of TCH. The enhanced photocatalytic performance of the AgBr/Ti3C2@TiO2 composite should be due to the formation of a p-n heterojunction structure between AgBr and Ti3C2@TiO2 and the excellent electronic properties of Ti3C2, which enhanced the visible light absorption capacity, lowered the internal resistance, speeded up the charge transfer and reduced the recombination efficiency of photo-generated carriers. Mechanism studies showed that superoxide free radical (˙O2-) was the main active species. In addition, the composite photocatalyst also displayed good stability, indicating its reutilization in practical application.
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Affiliation(s)
- Hanliu Wu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University Nanchong 637002 Sichuan China +86 817-2568081 +86 817-2445233
| | - Yan Quan
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University Nanchong 637002 Sichuan China +86 817-2568081 +86 817-2445233
| | - Meiling Liu
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University Nanchong 637002 Sichuan China +86 817-2568081 +86 817-2445233
| | - Xuemei Tian
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University Nanchong 637002 Sichuan China +86 817-2568081 +86 817-2445233
| | - Chunguang Ren
- College of Life Sciences, Yantai University Yantai 264005 China
| | - Zhonghua Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University Nanchong 637002 Sichuan China +86 817-2568081 +86 817-2445233
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Two-dimensional g-C3N4 nanosheets-based photo-catalysts for typical sustainable processes. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
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Preparation and in vivo bacteriostatic application of PPDO-coated Ag loading TiO 2 nanoparticles. Sci Rep 2022; 12:10585. [PMID: 35732700 PMCID: PMC9217793 DOI: 10.1038/s41598-022-14814-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 06/13/2022] [Indexed: 11/29/2022] Open
Abstract
Implant-associated infections limit the clinical application of implants therapy; hence, exploiting strategies to prevent biomaterial-associated infections has become important. Therefore, in this study, a series of poly (p-dioxanone) (PPDO)-coated Ag loading TiO2 nanoparticles (Ag@TiO2-PPDO) was synthesized to be applied as bacteriostatic coating materials that could be easily dispersed in organic solvent and coated onto implantable devices via temperate methods such as electrospraying. The lattice parameters of TiO2 were a = 0.504 nm, b = c = 1.05 nm, alpha = beta = gamma = 90 degree and the size of crystallite was about 13 nm, indicating that part of Ag has been embedded into crystal defects of TiO2. Both XRD and TEM determinations indicated the successful grating of PPDO on the surface of Ag@TiO2. Among Ag@TiO2 nanoparticles with various Ag loading quantities, 12% Ag@TiO2 nanoparticles exhibited relatively higher grafting efficiency and Ag contents on the surface of grafted composites. In addition, 12% Ag@TiO2-PPDO exhibited the best bacteriostatic effect in vitro owing to its higher grafted efficiency and relatively short length of PPDO segments. Subsequently, Ag@TiO2-PPDO was coated on the surface of a poly lactic-co-glycolic acid (PLGA) electrospun membrane via the electrospraying method. Finally, the in vivo bacteriostatic effect of 12% Ag@TiO2-PPDO coating was verified by implanting 12% Ag@TiO2-PPDO-coated PLGA membrane into a rat subcutaneously combined with an injection of Staphylococcus aureus at implanting sites.
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Li H, Luo X, Long Z, Huang G, Zhu L. Plasmonic Ag Nanoparticle-Loaded n-p Bi 2O 2CO 3/α-Bi 2O 3 Heterojunction Microtubes with Enhanced Visible-Light-Driven Photocatalytic Activity. NANOMATERIALS 2022; 12:nano12091608. [PMID: 35564315 PMCID: PMC9103671 DOI: 10.3390/nano12091608] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/04/2022] [Accepted: 05/07/2022] [Indexed: 02/04/2023]
Abstract
In this study, n-p Bi2O2CO3/α-Bi2O3 heterojunction microtubes were prepared via a one-step solvothermal route in an H2O-ethylenediamine mixed solvent for the first time. Then, Ag nanoparticles were loaded onto the microtubes using a photo-deposition process. It was found that a Bi2O2CO3/α-Bi2O3 heterostructure was formed as a result of the in situ carbonatization of α-Bi2O3microtubes on the surface. The photocatalytic activities of α-Bi2O3 microtubes, Bi2O2CO3/α-Bi2O3 microtubes, and Ag nanoparticle-loaded Bi2O2CO3/α-Bi2O3 microtubes were evaluated based on their degradation of methyl orange under visible-light irradiation (λ > 420 nm). The results indicated that Bi2O2CO3/α-Bi2O3 with a Bi2O2CO3 mass fraction of 6.1% exhibited higher photocatalytic activity than α-Bi2O3. Loading the microtubes with Ag nanoparticles significantly improved the photocatalytic activity of Bi2O2CO3/α-Bi2O3. This should be ascribed to the internal static electric field built at the heterojunction interface of Bi2O2CO3 and α-Bi2O3 resulting in superior electron conductivity due to the Ag nanoparticles; additionally, the heterojunction at the interfaces between two semiconductors and Ag nanoparticles and the local electromagnetic field induced by the surface plasmon resonance effect of Ag nanoparticles effectively facilitate the photoinduced charge carrier transfer and separation of α-Bi2O3. Furthermore, loading of Ag nanoparticles leads to the formation of new reactive sites, and a new reactive species ·O2− for photocatalysis, compared with Bi2O2CO3/α-Bi2O3.
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Affiliation(s)
- Haibin Li
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China; (H.L.); (X.L.); (Z.L.); (G.H.)
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
| | - Xiang Luo
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China; (H.L.); (X.L.); (Z.L.); (G.H.)
| | - Ziwen Long
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China; (H.L.); (X.L.); (Z.L.); (G.H.)
| | - Guoyou Huang
- College of Materials Science and Engineering, Changsha University of Science and Technology, Changsha 410114, China; (H.L.); (X.L.); (Z.L.); (G.H.)
| | - Ligang Zhu
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, College of Chemistry and Food Science, Yulin Normal University, Yulin 537000, China
- Correspondence:
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He P, Deng D, Ren T, Dang Y, Li M, Chen J, Xiao Y. Constructing Ternary Photocatalyst Ag/Ni(OH)
2
/g‐C
3
N
4
for Efficient Photocatalytic Hydrogen Production. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ping He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical Engineering China West Normal University Nanchong 637002 PR China
| | - Dashuang Deng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical Engineering China West Normal University Nanchong 637002 PR China
| | - Tongyan Ren
- School of Basic Medical Sciences North Sichuan Medical College Nanchong 637100 PR China
| | - Yinping Dang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical Engineering China West Normal University Nanchong 637002 PR China
| | - Ming Li
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical Engineering China West Normal University Nanchong 637002 PR China
| | - Jiufu Chen
- Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan College of Chemistry and Environmental Engineering Sichuan University of Science and Engineering Zigong 643000 PR China
| | - Yao Xiao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical Engineering China West Normal University Nanchong 637002 PR China
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Zhang J, Li CL, Jin X, Zheng Y. An efficient hydrogen evolution photocatalyst of Rh@Cr2O3 loaded PbMoO4 twenty-six facets polyhedron. NEW J CHEM 2022. [DOI: 10.1039/d2nj02696a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Shape anisotropic semiconductor is advanced catalyst for resolving energy crises. However, modification studies are still needed to overcome its intrinsic disadvantages, such as the lack of active sites. For this...
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Constructing carbon microspheres/MnFe2O4/g-C3N4 composite photocatalysts for enhanced photocatalytic activity under visible light irradiation. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108947] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Starukh H, Koštejn M, Matějka V, Praus P. Graphitic Carbon Nitride as a Platform for the Synthesis of Silver Nanoclusters. NANOSCALE RESEARCH LETTERS 2021; 16:166. [PMID: 34817713 PMCID: PMC8613329 DOI: 10.1186/s11671-021-03621-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/04/2021] [Indexed: 05/27/2023]
Abstract
Graphitic carbon nitride (CN) synthetized by the thermal polycondensation of melamine at 550 °C for 4 h was further exfoliated by heating at 500 °C for 3 h. Silver cations were adsorbed on the exfoliated graphitic carbon nitride (CNE) and then reduced by sodium borohydride forming silver nanoclusters (NCs) with a size of less than 1 nm. The NCs were located on the CNE surface and did not change the CNE properties except for its pore size distribution and thereby specific surface area (SSA). The Ag NCs were able to collect the photoinduced electrons of CNE and thus reduce their recombination with the holes. It was also documented by the increase in the CNE photocatalytic activity in terms of the degradation of antibiotic Ofloxacin. This study demonstrates the ability of CNE to serve as a platform for a simple and fast synthesis of Ag NCs without any stabilizing compounds.
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Affiliation(s)
- Halyna Starukh
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. listopadu 15, 70800, Ostrava-Poruba, Czech Republic
- Department of Chemistry, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 15, 708 00, Ostrava-Poruba, Czech Republic
- Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, General Naumov Street 17, Kyiv, 03164, Ukraine
| | - Martin Koštejn
- Institute of Chemical Process Fundamentals, Czech Academy of Science, Rozvojová 1, 165 02, Prague, Czech Republic
| | - Vlastimil Matějka
- Department of Chemistry, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 15, 708 00, Ostrava-Poruba, Czech Republic
| | - Petr Praus
- Institute of Environmental Technology, CEET, VSB-Technical University of Ostrava, 17. listopadu 15, 70800, Ostrava-Poruba, Czech Republic.
- Department of Chemistry, Faculty of Materials Science and Technology, VSB-Technical University of Ostrava, 17. listopadu 15, 708 00, Ostrava-Poruba, Czech Republic.
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Fadaee Takmil N, Jaleh B, Feizi Mohazzab B, Khazalpour S, Rostami-Vartooni A, Hong Chuong Nguyen T, Cuong Nguyen X, Varma RS. Hydrogen production by Electrochemical reaction using waste zeolite boosted with Titania and Au nanoparticles. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108891] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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S-scheme Ag2CrO4/g-C3N4 photocatalyst for effective degradation of organic pollutants under visible light. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108849] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Li H, Qu Y, Zhang X. The gas sensor utilizing CeO2 nanorods for the low temperature detection of hydrogen. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108692] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Hexagonal carbon nitride microtube doped with tungsten and nitrogen vacancies: Photocatalytic hydrogen evolution and efficient Fenton-like photocatalytic degradation of p-nitrophenol. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118457] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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