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Mondal S, Ayon SA, Islam MS, Rana MS, Billah MM. Morphological evaluation and boosted photocatalytic activity of N-doped ZnO nanoparticles prepared via Co-precipitation method. Heliyon 2023; 9:e20948. [PMID: 37876471 PMCID: PMC10590957 DOI: 10.1016/j.heliyon.2023.e20948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/10/2023] [Accepted: 10/11/2023] [Indexed: 10/26/2023] Open
Abstract
Pristine and nitrogen (N) doped zinc oxide (ZnNxO1-x, x = 0, 0.005, 0.01, and 0.02) nanoparticles (NPs) were successfully synthesized using chemical co-precipitation approach. The formation of pure crystalline wurtzite ZnO phase without any second phase during N-doping was confirmed by X-ray diffraction (XRD) analysis of N-doped ZnO samples. X-ray photoelectron spectroscopic (XPS) analysis ensured the effective inclusion of nitrogen into ZnO matrix. The morphological analysis revealed the formation of nanorods as a result of N-doping. The optical band gap calculated from UV-vis spectroscopy was observed to decrease up to 1 mol.% N doping followed by a subtle increase. Photoluminescence (PL) spectra revealed that electron-hole recombination was the least for 1 mol.% N doped ZnO NPs. ZnN0.01O0.99 NPs showed superior photocatalytic activity among all samples due to rod-shaped NPs and reduced electron-hole recombination, which was accessed by the photodegradation of Rhodamine B (RhB).
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Affiliation(s)
- Sudipta Mondal
- Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
- School of Materials Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Sikder Ashikuzzaman Ayon
- Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Md Saiful Islam
- Department of Nanomaterials and Ceramic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
| | - Md Shahjalal Rana
- Department of Nanomaterials and Ceramic Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
| | - Md Muktadir Billah
- Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh
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Balouch A, Jagirani MS, Alveroglu E, Lal S, Sirajuddin, Mahar AM, Mal D. Ultra-Fast Degradation of Thymol Blue Dye Under Microwave Irradiation Technique Using Alpha-orthorhombic Molybdenum Trioxide (α-MoO3) Colloidal Nanoparticles. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02381-9] [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]
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Berhanu S, Gebremariam H, Chufamo S. The g-C3N4@CdO/ZnO ternary composite: photocatalysis, thermodynamics and acute toxicity studies. Heliyon 2022; 8:e11612. [PMID: 36411912 PMCID: PMC9674551 DOI: 10.1016/j.heliyon.2022.e11612] [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: 06/25/2022] [Revised: 08/24/2022] [Accepted: 11/08/2022] [Indexed: 11/18/2022] Open
Abstract
Binary and ternary nanocomposites (NCs) were synthesized by precipitation and through facile one-pot ultrasonic assisted methods to serve as photocatalysts for treatment of wastewater as well as their toxicity toward aquatic organism (Nile tilapia). The crystalline structure, band gap energy and functional groups of these materials were characterized by XRD, UV-Vis, and FT-IR instrumental techniques. Based on the UV-Vis study, the band gap of ZnO/CdO (ZC) to hybrid g-C3N4@ZnO/CdO (GZC) nanocomposite was reduced from 3.41 eV to 3.21 eV, suggesting good charge carrier mobility. Photocatalytic degradation performances of ZC and GZC were further assessed by conducting methyl red (MR) photodegradation reaction using UV light. The highest degradation efficiency was achieved for GZC NCs (97.78%) than ZC (89.41%) in 2 h. The values of free energy, and enthalpy were negative; showing spontaneous photodegradation of MR. The kinetics of photodegradation follows pseudo-first-order reaction with rate order of 0.0713 min−1. The HO∗ and O2∗ were main active species for the photodegradation of MR. The toxicity of NCs calculated and the lethal concentration (LC50) was 113 ppm after 12 h.
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Affiliation(s)
- Sintayehu Berhanu
- Department of Chemistry, Bonga University, P.O. Box 334, Bonga, Ethiopia
- Corresponding author.
| | | | - Samuel Chufamo
- Department of Chemistry, Wolaita Sodo University, P.O. Box 138, Wolaita Sodo, Ethiopia
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Attia KAM, Abdel-Monem AH, Ashmawy AM, Eissa AS, Abdel-Raoof AM. Construction and application of highly sensitive spinel nanocrystalline zinc chromite decorated multiwalled carbon nanotube modified carbon paste electrode (ZnCr 2O 4@MWCNTs/CPE) for electrochemical determination of alogliptin benzoate in bulk and its dosage form: green chemistry assessment. RSC Adv 2022; 12:19133-19143. [PMID: 35865580 PMCID: PMC9245611 DOI: 10.1039/d2ra02685f] [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: 04/28/2022] [Accepted: 06/23/2022] [Indexed: 11/21/2022] Open
Abstract
A new sensor for alogliptin benzoate (ALG) estimation based on a simple and sensitive method was evolved on multiwalled-carbon-nanotube modified nanocrystalline zinc chromite carbon paste electrodes (ZnCr2O4@MWCNTs/CPEs). ALG electrochemical behavior was evaluated using a cyclic voltammetry (CV), square wave voltammetry (SWV) and chronoamperometry (CA). The new electrode materials were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), energy dispersive X-ray analysis (EDX) for elemental analysis and mapping, and X-ray diffraction (XRD) and the X-ray photoelectron spectroscopy (XPS) measurements. All these measurements exhibiting enhanced activity and high conductivity compared to the bare electrode without modification. The calibration curves obtained for ALG were in the ranges of 0.1–20 μmol L−1 with a quantification and detection limits of 0.09 and 0.03 μmol L−1, respectively. The prepared sensor showed a good sensitivity and selectivity with less over potential for ALG determination. Finally, the presented method was successfully applied as a simple, precise and selective electrochemical electrode for the estimation of ALG in its pharmaceutical dosage form. A new sensor for alogliptin benzoate (ALG) estimation based on a simple and sensitive method was evolved on multiwalled-carbon-nanotube modified nanocrystalline zinc chromite carbon paste electrodes (ZnCr2O4@MWCNTs/CPEs).![]()
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Affiliation(s)
- Khalid A M Attia
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University 11751 Nasr City Cairo Egypt
| | - Ahmed H Abdel-Monem
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University 11751 Nasr City Cairo Egypt
| | - Ashraf M Ashmawy
- Chemistry Department, Faculty of Science, Al-Azhar University Nasr City Cairo 11884 Egypt
| | - Amr S Eissa
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University Badr 11829 City Cairo Egypt
| | - Ahmed M Abdel-Raoof
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University 11751 Nasr City Cairo Egypt
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Kumar S Kumar S, Kaushik RD, Purohit LP. ZnO-CdO nanocomposites incorporated with graphene oxide nanosheets for efficient photocatalytic degradation of bisphenol A, thymol blue and ciprofloxacin. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127332. [PMID: 34607025 DOI: 10.1016/j.jhazmat.2021.127332] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 09/11/2021] [Accepted: 09/21/2021] [Indexed: 05/27/2023]
Abstract
The widespread existence of different organic contaminants mostly phenolic compounds, organic dyes and antibiotics in water bodies initiated by the various industrial wastes that raised great scientific concern and public awareness as well recently owing to their prospective capability to spread these contaminants resistant gene and pose hazard to human. In the present study, a series of nanostructured ZnO-CdO incorporated with reduced graphene oxide (ZCG nanocomposites) were successfully synthesized by a simple refluxing method and characterized by using the X-ray diffraction (XRD), Raman spectroscopy, FT-IR spectroscopy, photoluminescence spectroscopy, field emission-scanning microscope (FE-SEM) and UV-visible diffused reflectance spectroscopy (DRS) for the photocatalytic degradation of bisphenol A (BPA), thymol blue (ThB) and ciprofloxacin (CFn) with illumination of UV light. The maximum degradation and mineralization of BPA, ThB and CFn was achieved around 98.5%, 98.38% and 99.28% over the ZCG-5 nanocomposite photocatalyst after UV light irradiation for 180 min, 120 min and 75 min, respectively. The superior photocatalytic activity of ZCG-5 ascribed to enhance adsorption capacity, effective separation of charge carriers consequential for the production of more ROS after incorporation of RGO nanosheets with ZnO-CdO in photocatalyst. The conceivable photocatalytic degradation mechanism of BPA, ThB and CFn was elucidated through ROS identification and the assessment of photocatalyst stability by reusability, EEO (kwh/m3order) and UV light dose (mJ/cm2) were evaluated. The plausible photocatalytic degradation pathways were proposed for the degradation of BPA, ThB and CFn via GC-MS analysis. The present work investigates the efficient removal of BPA, ThB and CFn using ZCG nanocomposites as photocatalyst.
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Affiliation(s)
- Sonu Kumar S Kumar
- Department of Chemistry, Gurukula Kangri (Deemed University), Haridwar, India
| | - R D Kaushik
- Department of Chemistry, Gurukula Kangri (Deemed University), Haridwar, India
| | - L P Purohit
- Department of Physics, Gurukula Kangri (Deemed University), Haridwar, India.
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Khademalrasool M, Farbod M, Talebzadeh MD. Investigation of shape effect of silver nanostructures and governing physical mechanisms on photo-activity: Zinc oxide/silver plasmonic photocatalyst. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.03.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Realpe Jimenez A, Nuñez D, Rojas N, Ramirez Y, Acevedo M. Effect of Fe-N Codoping on the Optical Properties of TiO 2 for Use in Photoelectrolysis of Water. ACS OMEGA 2021; 6:4932-4938. [PMID: 33644600 PMCID: PMC7905934 DOI: 10.1021/acsomega.0c05981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
TiO2 nanoparticles were synthesized by green chemistry where organic solvents are replaced by an aqueous extract solution of lemongrass leaves that act as a reducer and growth-stopper agent. The nanoparticles were codoped with N-Fe to modify the absorption range in the electromagnetic spectrum and were characterized by Fourier-transform infrared (FTIR), scanning electron microscopy/energy dispersive X-ray spectroscopy (SEM/EDS), and UV-vis/diffuse reflectance spectroscopy (DRS). The modified samples with Fe and N resulted in smaller nanoparticle size values than pure TiO2. Similarly, the band-gap energy for doped nanoparticles decreased to 2.22 eV in relation to the value of 3.09 eV for pure TiO2, due to the introduction of new energy levels.
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Khademalrasool M, Talebzadeh MD, Farbod M. ZnO /Silver Nanocubes Nanocomposites: Preparation, Characterization, and Scrutiny of Plasmon-Induced Photocatalysis Activity. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112561] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shahmoradi B, Farahani F, Kohzadi S, Maleki A, Pordel M, Zandsalimi Y, Gong Y, Yang J, McKay G, Lee SM, Yang JK. Application of cadmium-doped ZnO for the solar photocatalytic degradation of phenol. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 79:375-385. [PMID: 30865609 DOI: 10.2166/wst.2019.061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this study, photocatalysis of phenol was studied using Cd-ZnO nanorods, which were synthesized by a hydrothermal method. The Cd-ZnO photocatalyst was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy, and Fourier transform infrared (FT-IR) and UV-Vis spectroscopy. XRD patterns exhibit diffraction peaks indexed to the hexagonal wurtzite structures with the P63mc space group. SEM images showed that the average size of the Cd-ZnO nanorods was about 90 nm. Moreover, the nanorods were not agglomerated and were well-dispersed in the aqueous medium. FT-IR analysis confirmed that a surface modifier (n-butylamine) did not add any functional groups onto the Cd-ZnO nanorods. The dopant used in this study showed reduction of the bandgap energy between valence and conduction of the photocatalyst. In addition, effect of various operational parameters including type of photocatalyst, pH, initial concentration of phenol, amount of photocatalyst, and irradiation time on the photocatalytic degradation of phenol has been investigated. The highest phenol removal was achieved using 1% Cd-ZnO for 20 mg/l phenol at pH 7, 3 g/l photocatalyst, 120 min contact time, and 0.01 mole H2O2.
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Affiliation(s)
- Behzad Shahmoradi
- Department of Environmental Health Engineering, Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran E-mail:
| | - Farzaneh Farahani
- Academic Center for Education, Culture and Research (ACECR), Alborz Branch, Alborz, Iran
| | - Shadi Kohzadi
- Department of Environmental Health Engineering, Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran E-mail:
| | - Afshin Maleki
- Department of Environmental Health Engineering, Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran E-mail:
| | - Mohammadamin Pordel
- Department of Environmental Health Engineering, Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran E-mail:
| | - Yahya Zandsalimi
- Department of Environmental Health Engineering, Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran E-mail:
| | - Yuxuan Gong
- Kazuo Inamori School of Engineering, Alfred University, Alfred, NY, 14802, USA
| | - Jixiang Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
| | - Gordon McKay
- Division of Sustainability, College of Science and Engineering, Hamad Bin Khalifa University, Education City, Qatar Foundation, Doha, Qatar
| | - Seung-Mok Lee
- Department of Energy and Environment Convergence Technology, Catholic Kwandong University, Gangneung 25601, Korea
| | - Jae-Kyu Yang
- Department of Environmental Engineering, Kwangwoon University, Seoul, 01897, Korea
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Balcha A, Yadav OP, Dey T. Photocatalytic degradation of methylene blue dye by zinc oxide nanoparticles obtained from precipitation and sol-gel methods. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:25485-25493. [PMID: 27704379 DOI: 10.1007/s11356-016-7750-6] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 09/18/2016] [Indexed: 05/23/2023]
Abstract
Zinc oxide (ZnO) nanoparticles were synthesized by precipitation and sol-gel methods. The aim of this study was to understand how different synthetic methods can affect the photocatalytic activity of ZnO nanoparticles. As-synthesized ZnO nanoparticles were characterized by X-ray diffraction (XRD) and UV-Visible spectroscopic techniques. XRD patterns of ZnO powders synthesized by precipitation and sol-gel methods revealed their hexagonal wurtzite structure with crystallite sizes of 30 and 28 nm, respectively. Their photocatalytic activities were evaluated by photocatalytic degradation of methylene blue, a common water pollutant, under UV radiation. The effects of operational parameters such as photocatalyst load and initial concentration of the dye on photocatalytic degradation of methylene blue were investigated. While the degradation of dye decreased over the studied dye concentration range of 20 to 100 mg/L, an optimum photocatalyst load of 250 mg/L was needed to achieve dye degradation as high as 81 and 92.5 % for ZnO prepared by precipitation and sol-gel methods, respectively. Assuming pseudo first-order reaction kinetics, this corresponded to rate constants of 8.4 × 10-3 and 12.4 × 10-3 min-1, respectively. Hence, sol-gel method is preferred over precipitation method in order to achieve higher photocatalytic activity of ZnO nanostructures. Photocatalytic activity is further augmented by better choice of capping ligand for colloidal stabilization, starch being more effective than polyethylene glycol (PEG).
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Affiliation(s)
- Abebe Balcha
- Chemistry Department, Haramaya University, Post Box 138, Dire Dawa, Ethiopia
| | - Om Prakash Yadav
- Chemistry Department, Haramaya University, Post Box 138, Dire Dawa, Ethiopia
| | - Tania Dey
- Department of Mechanical Engineering, Limerick Institute of Technology, Moylish Park Campus, Limerick, Ireland.
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Giahi M. Photocatalytic degradation of diclofenac sodium in aqueous solution using N, S, and C-doped ZnO. RUSS J APPL CHEM+ 2016. [DOI: 10.1134/s10704272150120228] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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