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Abebe B, Gupta NK, Tsegaye D. A critical mini-review on doping and heterojunction formation in ZnO-based catalysts. RSC Adv 2024; 14:17338-17349. [PMID: 38813127 PMCID: PMC11134265 DOI: 10.1039/d4ra02568g] [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: 04/05/2024] [Accepted: 05/23/2024] [Indexed: 05/31/2024] Open
Abstract
This mini-review on doping and heterojunctions for catalysis applications provides a comprehensive overview of key aspects. Doping, when carried out adequately with a uniform distribution, creates a new energy level that significantly enhances charge transfer and light absorption. This new level alters the material's morphology and enhances intrinsic defects. For instance, ZnO, despite its exceptional band edge concerning oxygen reduction and water oxidation redox potentials, faces the issue of electron-hole recombination. However, forming a heterojunction can effectively aid charge transfer and prolong electron-hole relaxation without recombination. This is where the role of doping and heterojunctions becomes crucial. Additionally, incorporating noble metals with S- and Z-scheme heterojunctions offers a promising mechanism for charge transfer and visible light harvesting, further amplifying the catalytic properties.
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Affiliation(s)
- Buzuayehu Abebe
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P.O. Box 1888 Adama Ethiopia
| | - Neeraj K Gupta
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P.O. Box 1888 Adama Ethiopia
| | - Dereje Tsegaye
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University P.O. Box 1888 Adama Ethiopia
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2
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Lemecho B, Andoshe DM, Gultom NS, Abdullah H, Kuo DH, Chen X, Desissa TD, Wondimageng DT, Wu YN, Zelekew OA. Biological Renewable Cellulose-Templated Zn 1-XCu XO/Ag 2O Nanocomposite Photocatalysts for the Degradation of Methylene Blue. ACS OMEGA 2024; 9:13714-13727. [PMID: 38559997 PMCID: PMC10975585 DOI: 10.1021/acsomega.3c08051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/25/2024] [Accepted: 02/29/2024] [Indexed: 04/04/2024]
Abstract
Herein, Cellulose-templated Zn1-XCuXO/Ag2O nanocomposites were prepared using biological renewable cellulose extracted from water hyacinth (Eichhornia crassipes). Cellulose-templated Cu-doped ZnO catalysts with different amounts of Cu as the dopants (1, 2, 3, and 4%) were prepared and denoted CZ-1, CZ-2, CZ-3, and CZ-4, respectively, for simplicity. The prepared catalysts were tested for the degradation of methylene blue (MB), and 2% Cu-doped ZnO (CZ-2) showed the best catalytic performance (82%), while the pure ZnO, CZ-1, CZ-3, and CZ-4 catalysts exhibited MB dye degradation efficiencies of 54, 63, 65, and 60%, respectively. The best catalyst (CZ-2) was chosen to further improve the degradation efficiency. Different amounts of AgNO3 (10, 15, 30, and 45 mg) were used for the deposition of Ag2O on the surface of CZ-2 and denoted CZA-10, CZA-15, CZA-30, and CZA-45, respectively. Among the composite catalysts, CZA-15 showed remarkable degradation efficiency and degraded 94% of MB, while the CZA-10, CZA-30, and CZA-45 catalysts showed 90, 81, and 79% degradation efficiencies, respectively, under visible light within 100 min of irradiation. The enhanced catalytic performance could be due to the smaller particle size, the higher electron and hole separation and charge transfer efficiencies, and the lower agglomeration in the composite catalyst system. The results also demonstrated that the Cu-doped ZnO prepared with cellulose as a template, followed by the optimum amount of Ag2O deposition, could have promising applications in the degradation of organic pollutants.
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Affiliation(s)
- Biruktait
Ayele Lemecho
- Department
of Materials Science and Engineering, Adama
Science and Technology University, Adama 1888, Ethiopia
| | - Dinsefa Mensur Andoshe
- Department
of Materials Science and Engineering, Adama
Science and Technology University, Adama 1888, Ethiopia
| | - Noto Susanto Gultom
- Department
of Materials Science and Engineering, National
Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Hairus Abdullah
- Department
of Materials Science and Engineering, National
Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Dong-Hau Kuo
- Department
of Materials Science and Engineering, National
Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Xiaoyun Chen
- College
of Materials Engineering, Fujian Agriculture
and Forestry University, Fuzhou 350002, China
| | - Temesgen D. Desissa
- Department
of Materials Science and Engineering, Adama
Science and Technology University, Adama 1888, Ethiopia
| | - Demeke Tesfaye Wondimageng
- Department
of Materials Science and Engineering, Adama
Science and Technology University, Adama 1888, Ethiopia
| | - Yi-nan Wu
- College
of Environmental Science and Engineering, State Key Laboratory of
Pollution Control and Resource Reuse, Tongji
University, 1239 Siping Rd., Shanghai 200092, China
- Shanghai
Institute of Pollution Control and Ecological Security, 1239 Siping Road, Shanghai 200092, China
| | - Osman Ahmed Zelekew
- Department
of Materials Science and Engineering, Adama
Science and Technology University, Adama 1888, Ethiopia
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Elgazzar E, Nafie MS, Abul-Nasr KT. New synthetic silver-doped ZnO nanorods trigger cytotoxicity in MCF-7 through apoptosis and antimicrobial activity. J Biomol Struct Dyn 2023; 41:11193-11203. [PMID: 36571482 DOI: 10.1080/07391102.2022.2160815] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 12/15/2022] [Indexed: 12/27/2022]
Abstract
The structural, composition, and molecular interaction of silver integrated zinc oxide (20 wt.% Ag/ZnO) were investigated by X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX), and Fourier transforms infrared (FTIR) spectrum. The XRD analysis showed the polycrystalline of small crystallite size, whereas the EDX spectrum confirmed the purity of the nanocomposite. The FTIR spectrum indicated the presence of Ag-Zn-O stretching vibration at 1034 cm-1. SEM and TEM images identified the surface morphology and particle size, indicating that Ag/ZnO of nanorods linked with spherical-like shapes. The nanorods of an average length of ∼ 110 nm and an average diameter of ∼ 10 nm. The optical characteristics showed a direct transition of electrons through an energy gap in the 3.30 eV-3.60 eV. The tested nanocomposite exhibited potent cytotoxicity against MCF-7 cells with an IC50 value of 0.26 µg/ml with cell growth inhibition by 97.3% at the highest concentration compared to Doxorubicin (IC50=6.72 µg/ml). It significantly stimulated total apoptotic breast cancer cell death by 51-fold (32.16% compared to 0.63 for the control), arresting the cell progression at the G1 phase. For further validation of apoptotic activity, the tested Ag/ZnO-NP upregulated the proapoptotic genes and down-regulated the anti-apoptotic gene. Moreover, a molecular docking study highlighted the binding disposition of the nanocomposite as Bcl-2 inhibitors. Additionally, Ag/ZnO-NP exhibited potent antimicrobial activity. Hence, the synthesized nanocomposite can serve as an antimicrobial and cytotoxic agent through apoptosis-induction and could be developed as a biologically active nanocomposite.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Elsayed Elgazzar
- Department of Physics, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Mohamed S Nafie
- Chemistry Department, Faculty of Science, Suez Canal University, Ismailia, Egypt
| | - Kareem T Abul-Nasr
- Physics Department, Faculty of Science, Port-Said University, Port-Said, Egypt
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Li X, Zheng H, Liu J, Li H, Wang J, Yan K, Liu J, Dang F, Zhu K. Piezo-photocatalytic properties of BaTiO 3/CeO 2 nanoparticles with heterogeneous structure synthesized by a gel-assisted hydrothermal method. RSC Adv 2023; 13:24583-24593. [PMID: 37593666 PMCID: PMC10427892 DOI: 10.1039/d3ra04014c] [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: 06/15/2023] [Accepted: 08/10/2023] [Indexed: 08/19/2023] Open
Abstract
BaTiO3/CeO2 nanoparticles with heterogeneous structure were successfully synthesized via a gel-assisted hydrothermal method. The molar ratio of Ti/Ce was set as 1 : 0, 0.925 : 0.075, 0.9 : 0.1; 0.875 : 0.125, and 0.85 : 0.15 in the dried gels. Affected by the values of Ti/Ce, the particle sizes of hydrothermal products decreased obviously, and the surface of nanoparticles became rough and even had small protrusions. XRD, SEM, HRTEM, XPS, DRS, ESR, and PFM were used to characterize the nanoparticle textures. We speculated that the main body and surface of nanoparticles were BaTiO3 and CeO2 protrusions, respectively. The catalytic performance of BaTiO3/CeO2 nanoparticles was characterized by their abilities to degrade RhB in water under different external conditions (light irradiation, ultrasonic oscillation, or both). In all test groups, BaTiO3/CeO2 nanoparticles with a Ti/Ce molar ratio of 0.875 : 0.125 in the initial dried gel exhibited the strongest catalytic ability when light irradiation and ultrasonication were applied simultaneously owing to the appropriate amount of Ce3+ and oxygen vacancies.
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Affiliation(s)
- Xia Li
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China +86-25-84895759 +86-25-84895982
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
| | - Hongjuan Zheng
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China +86-25-84895759 +86-25-84895982
- College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
| | - Jingjin Liu
- School of General Education, Wuchang University of Technology Wuhan 430223 P. R. China
| | - Hongcheng Li
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China +86-25-84895759 +86-25-84895982
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
| | - Jing Wang
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China +86-25-84895759 +86-25-84895982
- College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
| | - Kang Yan
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China +86-25-84895759 +86-25-84895982
- College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
| | - Jingsong Liu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
| | - Feng Dang
- Key Laboratory for Liquid-Solid Structural Evolution & Processing of Materials, Ministry of Education, Shandong University Jinan 250061 P. R. China
| | - Kongjun Zhu
- State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China +86-25-84895759 +86-25-84895982
- College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China
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Yuan Y, Liu Y, Xie X, Wen Y, Song M, He J, Wang Z. 2D defect-engineered Ag-doped γ-Fe 2O 3/BiVO 4: The effect of noble metal doping and oxygen vacancies on exciton-triggering photocatalysis production of singlet oxygen. CHEMOSPHERE 2023; 322:138176. [PMID: 36806812 DOI: 10.1016/j.chemosphere.2023.138176] [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: 11/05/2022] [Revised: 01/19/2023] [Accepted: 02/16/2023] [Indexed: 06/18/2023]
Abstract
The selectivity of singlet oxygen (1O2) holds promising applications in complex environmental systems due to its ability to preferentially oxidize target pollutants. Usually, 1O2 in photocatalytic systems is generated via the electron transfer pathway and •O2- plays an important role as an intermediate, while the exciton-based energy transfer pathway for 1O2 generation has been less studied. Here, a 2D Ag-γ-Fe2O3/BiVO4 with oxygen vacancies was designed which was capable of generating 1O2 by an exciton-based energy transfer-dominated approach, as strongly demonstrated by the results of steady-state fluorescence spectroscopy and phosphorescence spectroscopy. In the Z-type heterojunction photocatalyst system, Ag acted as an electron mediator to promote not only the generation of free carriers but also the generation of singlet excitons, while the appropriate concentration of oxygen vacancies further promotes the exciton-triggering photocatalysis production of 1O2. The Ag-γ-Fe2O3/BiVO4 could degrade 99.4% of sulfadiazine within 90 min, and 1O2 played an important role in the degradation of sulfadiazine, as shown by EPR and active species capture experiments. Ecotoxicity predictions indicated that the main byproducts of sulfadiazine degradation by Ag-γ-Fe2O3/BiVO4 were low in toxicity. The prepared photocatalysts provide a new idea for obtaining 1O2 and designing photocatalysts with selectivity.
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Affiliation(s)
- Yi Yuan
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Yijie Liu
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Xiaoyun Xie
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China.
| | - Yuan Wen
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Mengxi Song
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Jiancheng He
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Zhaowei Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
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Preparation and photocatalytic performance of a magnetically recyclable ZnFeO@TiO@AgO p-n/Z-type tandem heterojunction photocatalyst: Degradation pathway and mechanism. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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7
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Zhang X, Liu W, Zhou Y, Li Y, Yang Y, Gou J, Shang J, Cheng X. Photo-assisted bismuth ferrite/manganese dioxide/nickel foam composites activating PMS for degradation of enrofloxacin in water. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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8
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Yuan X, Yang J, Yao Y, Shen H, Meng Y, Xie B, Ni Z, Xia S. Preparation, characterization and photodegradation mechanism of 0D/2D Cu2O/BiOCl S-scheme heterojunction for efficient photodegradation of tetracycline. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120965] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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9
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Chen P, Dong N, Zhang J, Wang W, Tan F, Wang X, Qiao X, Keung Wong P. Investigation on visible-light photocatalytic performance and mechanism of zinc peroxide for tetracycline degradation and Escherichia coli inactivation. J Colloid Interface Sci 2022; 624:137-149. [PMID: 35660882 DOI: 10.1016/j.jcis.2022.05.134] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 05/06/2022] [Accepted: 05/22/2022] [Indexed: 12/22/2022]
Abstract
In this study, zincperoxide (ZnO2) with broad energy gap was firstly used for visible-light-induced photocatalytic degradation of tetracycline (TC) and inactivation of Escherichia coli (E. coli). A small amount of ZnO2 (10 mg) could efficiently degrade 100 mL of 50 mg/L TC in a wide pH range (4-12), and the degradation performance was rarely suppressed by common matrix species and natural water sources. Also, 100 mg/L ZnO2 could inactivate around 7-log E. coli cells within 60 min under visible-light irradiation. Quenching experiments and electron paramagnetic resonance (EPR) results confirmed that superoxide radical (•O2-) and singlet oxygen (1O2) were the main reactive oxygen species (ROS), which were attributed to the self-sensitization of TC and the photoexcitation of released H2O2 under the catalysis of Zn(OH)2 from the hydrolysis of partial ZnO2, respectively. The pathways of TC degradation and processes of visible-light-induced TC degradation and E. coli inactivation were proposed and deduced in detail. This work presented the enhanced visible-light photocatalytic activities of ZnO2 for antibiotic degradation and bacterial inactivation, and provided a deep insight into the mechanisms of visible-light-induced TC degradation andE. coli inactivation over ZnO2.
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Affiliation(s)
- Pei Chen
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Ningning Dong
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Junjie Zhang
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Wei Wang
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China.
| | - Fatang Tan
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Xinyun Wang
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Xueliang Qiao
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
| | - Po Keung Wong
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong SAR, China; Institute of Environmental Health and Pollution Control, School of Environmental Science & Engineering, Guangdong University of Technology, Guangzhou 510006, China
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The Oxygen Vacancy Defect of ZnO/NiO Nanomaterials Improves Photocatalytic Performance and Ammonia Sensing Performance. NANOMATERIALS 2022; 12:nano12030433. [PMID: 35159778 PMCID: PMC8838695 DOI: 10.3390/nano12030433] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 01/27/2023]
Abstract
In this paper, ZnO/NiO composites rich in oxygen vacancies are prepared by the solvothermal method and reduction method. In the test, through the use of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscope (TEM), diffuse reflectance spectroscopy (DRS), photoluminescence spectroscopy (PL), and electron paramagnetic resonance (EPR), we effectively prove the existence of phase, morphology and oxygen vacancies in the material. Through the photocatalysis test and gas sensitivity test, it is found that 10% Ni doped OZN-10 has the best photocatalytic activity and gas sensitivity characteristics. The degradation rate of methylene blue (MB) was 98%. The gas sensitivity test shows that OZN-10 has good selectivity, good response performance (3000 ppm, 27,887%) and excellent response recovery time (response time: 50 s, recovery time: 5–7 s) for saturated NH3 gas at standard atmospheric pressure (101.325 KPa) and room temperature (25 °C). The synergistic effect of oxygen vacancy as the center of a trap and p–n heterojunction forming an electric potential field at the interface is explained, and the mechanism of improving photocatalysis and gas sensitivity is analyzed. This work will provide an innovative vision for dual-performance oxygen vacancy modification of heterojunctions through photocatalysis.
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Xue L, Liang E, Wang J. Fabrication of magnetic ZnO/ZnFe 2O 4/diatomite composites: improved photocatalytic efficiency under visible light irradiation. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN ELECTRONICS 2022; 33:1405-1424. [PMID: 38624943 PMCID: PMC8733437 DOI: 10.1007/s10854-021-07568-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/08/2021] [Indexed: 06/15/2023]
Abstract
The magnetic recoverable ZnO/ZnFe2O4/diatomite (ZZFDT) composite was synthesized by hydrothermal-precipitation method. The structure, optical properties and magnetic properties of the composites were characterized by different analytical instruments. ZZFDT-1 is composed of cubic spinel, hexagonal wurtzite, tetrahedron structure. SEM and TEM showed that ZnO and ZnFe2O4 particles were loaded onto the surface of diatomite, and the particle size was uniform. In addition, ZZFDT-1 is a typical mesoporous material with a specific surface area of 65.3 m2/g and pore size of about 12 nm. The response range of ZZFDT-1 is extended to visible light, and the band gap is 1.5 eV. Moreover, the M-H hysteretic curves of ZZFDT-1 exhibited superparamagnetic properties. The photocatalytic activity of different samples was evaluated by the conversion rate of oxytetracycline (OTC) under visible light. ZZFDT-1 has the best photocatalytic activity and the conversion is up to 95%. Because of its magnetic nature, it can be easily separated from the solution. The results showed that the ZZFDT composite has good photocatalytic activity under visible light. After being reused six times, it still has good stability.
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Affiliation(s)
- Limei Xue
- School of Environment and Chemical Engineering, Heilongjiang University of Science & Technology, Harbin, 150022 China
| | - Ermiao Liang
- School of Environment and Chemical Engineering, Heilongjiang University of Science & Technology, Harbin, 150022 China
| | - Jiwen Wang
- School of Environment and Chemical Engineering, Heilongjiang University of Science & Technology, Harbin, 150022 China
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Zhao F, Wang Y, Shi Y, Dong Y, Liu X. MOF-5 derived ZnO-C nanoparticles combined with α-MnO 2 for efficient degradation of tetracycline under visible light. NEW J CHEM 2022. [DOI: 10.1039/d1nj06218b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A multifunctional α-MnO2/ZnO-C (MZ) Z-scheme photocatalyst was synthesized by suit-growth of α-MnO2 on the surface of MOF-5 and pyrolysis of the organic components in a certain condition. The obtained photocatalysts...
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13
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Nazir A, Latif S, Adil SF, Kuniyil M, Imran M, Hatshan MR, Kanwal F, Shaik B. Photocatalytic Degradation of Cefixime Trihydrate by Bismuth Ferrite Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2021; 15:213. [PMID: 35009367 PMCID: PMC8746074 DOI: 10.3390/ma15010213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 06/14/2023]
Abstract
The present work was carried out to synthesize bismuth ferrite (BFO) nanoparticles by combustion synthesis, and to evaluate the photocatalytic activity of synthesized bismuth ferrite nanoparticles against cefixime trihydrate. BFO nanoparticles were successfully synthesized using bismuth (III) nitrate and iron (III) nitrate by a combustion synthesis method employing different types of fuels such as maltose, succinic acid, cinnamic acid, and lactose. The effects of the different types of fuels on the morphology and size of the bismuth ferrite nanoparticles were investigated. Characterization of the as-obtained bismuth ferrite nanoparticles was carried out by different techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), Energy-Dispersive Spectroscopy (EDS), N2-sorption analysis, Fourier-transform infrared spectroscopy (FT-IR), and ultraviolet-visible (UV-vis) spectroscopy. Photoluminescence studies were also carried out for the various bismuth ferrite nanoparticles obtained. Degradation of cefixime trihydrate was investigated under sunlight to evaluate the photocatalytic properties of the bismuth ferrite nanoparticles, and it was found that the bismuth ferrite nanoparticles followed first-order degradation kinetics in solar irradiation in the degradation of antibiotic, cefixime trihydrate.
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Affiliation(s)
- Ammara Nazir
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore 54590, Pakistan; (A.N.); (M.I.)
| | - Shoomaila Latif
- School of Physical Sciences, University of the Punjab, Lahore 54590, Pakistan
| | - Syed Farooq Adil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.K.); (M.R.H.)
| | - Mufsir Kuniyil
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.K.); (M.R.H.)
| | - Muhammad Imran
- Centre for Inorganic Chemistry, School of Chemistry, University of the Punjab, Lahore 54590, Pakistan; (A.N.); (M.I.)
| | - Mohammad Rafe Hatshan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; (M.K.); (M.R.H.)
| | - Farah Kanwal
- Centre for Physical Chemistry, School of Chemistry, University of the Punjab, Lahore 54590, Pakistan;
| | - Baji Shaik
- Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin-si 446701, Gyeonggi-do, Korea;
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