1
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Shee NK, Kim HJ. Self-Assembled Nanostructure of Ionic Sn(IV)porphyrin Complex Based on Multivalent Interactions for Photocatalytic Degradation of Water Contaminants. Molecules 2024; 29:4200. [PMID: 39275048 DOI: 10.3390/molecules29174200] [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: 08/14/2024] [Revised: 09/02/2024] [Accepted: 09/03/2024] [Indexed: 09/16/2024] Open
Abstract
[Sn(H2PO4)2(TPyHP)](H2PO4)4∙6H2O (2), an ionic tin porphyrin complex, was synthesized from the reaction of [Sn(OH)2TPyP] (1) with a dilute aqueous solution of a polyprotic acid (H3PO4). Complex 2 was fully characterized using various spectroscopic methods, such as X-ray single-crystal crystallography, 1H NMR spectroscopy, elemental analysis, FTIR spectroscopy, UV-vis spectroscopy, emission spectroscopy, EIS mass spectrometry, PXRD, and TGA analysis. The crystal structure of 2 reveals that the intermolecular hydrogen bonds between the peripheral pyridinium groups and the axially coordinated dihydrogen phosphate ligands are the main driving force for the supramolecular assembly. Simultaneously, the overall association of these chains in 2 leads to an open framework with porous channels. The photocatalytic degradation efficiency of methyl orange dye and tetracycline antibiotic by 2 was 83% within 75 min (rate constant = 0.023 min-1) and 75% within 60 min (rate constant = 0.018 min-1), respectively. The self-assembly of 2 resulted in a nanostructure with a huge surface area, elevated thermodynamic stability, interesting surface morphology, and excellent catalytic photodegradation performance for water pollutants, making these porphyrin-based photocatalytic systems promising for wastewater treatment.
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Affiliation(s)
- Nirmal Kumar Shee
- Department of Chemistry and Bioscience, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
| | - Hee-Joon Kim
- Department of Chemistry and Bioscience, Kumoh National Institute of Technology, Gumi 39177, Republic of Korea
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2
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Raguram T, Rajni KS, Kanchana D, José SE, Granados-Tavera K, Cárdenas-Jirón G, Shobana M, Meher SR. Exploring structural and optical properties of iodine-doped TiO 2 nanoparticles in Rhodamine-B dye degradation: Experimental and theoretical investigation. CHEMOSPHERE 2024; 364:143183. [PMID: 39214412 DOI: 10.1016/j.chemosphere.2024.143183] [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: 06/18/2024] [Revised: 08/19/2024] [Accepted: 08/23/2024] [Indexed: 09/04/2024]
Abstract
Energy conversion and pollutant degradation are critical for advancing sustainable technologies, yet they often encounter challenges related to charge recombination and efficiency limitations. This study explores iodine-doped TiO2 nanoparticles as a potential solution for enhancing both energy conversion and pollutant degradation. The nanoparticles were synthesized via the sol-gel method with varying iodine precursor concentrations (0.025-0.1 M) and were characterized for their structural, compositional, and optical properties, particularly in relation to their photocatalytic performance in Rhodamine-B dye degradation. X-ray diffraction confirmed a tetragonal anatase crystal structure, with the average crystallite size decreasing from 10.06 nm to 8.82 nm with increase in iodine concentration. Selected area electron diffraction patterns verified the polycrystalline nature of the nanoparticles. Dynamic light scattering analysis showed hydrodynamic radii ranging from 95 to 125 nm. Fourier-transform infrared spectroscopy identified metal-oxygen vibrations at 441 cm⁻1, and electron microscopy confirmed the spherical morphology of the nanoparticles. Elemental analysis detected the presence of Ti, O, and I in the samples. Diffuse reflectance spectroscopy indicated the optical absorption edges for the doped samples in the visible region from which the corresponding band gap values were deduced. Photoluminescence spectroscopy revealed that the sample with 0.1 M iodine exhibit the lowest emission intensity, suggesting reduced charge recombination. Notably, 0.1 M iodine doped TiO2 samples demonstrated the highest photocatalytic efficiency, achieving 82.36% degradation of Rhodamine-B dye within 140 min under visible light. Additionally, ab-initio density functional theory calculations were performed to investigate the structural, optical, and adsorption properties of TiO2, iodine-doped TiO2, Rhodamine-B, and their composites, providing further insight into the enhanced photocatalytic activity observed in the experiments.
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Affiliation(s)
- T Raguram
- Centre for Applied Nanomaterials, Chennai Institute of Technology, Chennai - 600 069, Tamil Nadu, India.
| | - K S Rajni
- Department of Sciences, Amrita School of Physical Sciences, Coimbatore, Amrita Vishwa Vidyapeetham, India; Functional Materials Laboratory, Amrita School of Engineering, Coimbatore, Amrita Vishwa Vidyapeetham, India.
| | - D Kanchana
- Department of Computer Science and Applications, SRM Institute of Science and Technology, Ramapuram Campus, Chennai, Tamil Nadu, India
| | - Solar-Encinas José
- Laboratory of Theoretical Chemistry, Faculty of Chemistry and Biology, University of Santiago de Chile (USACH), Santiago, Chile
| | | | - Gloria Cárdenas-Jirón
- Laboratory of Theoretical Chemistry, Faculty of Chemistry and Biology, University of Santiago de Chile (USACH), Santiago, Chile.
| | - M Shobana
- Centre for Applied Nanomaterials, Chennai Institute of Technology, Chennai - 600 069, Tamil Nadu, India
| | - S R Meher
- Department of Physics, School of Advanced Sciences, Vellore Institute of Technology, Vellore, 632 014, India
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3
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Valsalakumar VC, Sreevalli Y, P K A, Joseph AS, Ubaid S, Vasudevan S. Removal of anionic dye from textile effluent using zirconium phosphate loaded polyaniline-graphene oxide composite: Lab to pilot scale evaluation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 368:122068. [PMID: 39116819 DOI: 10.1016/j.jenvman.2024.122068] [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: 04/17/2024] [Revised: 07/25/2024] [Accepted: 07/30/2024] [Indexed: 08/10/2024]
Abstract
Efficient filtering of dyes is essential for the protection of ecosystem and human health due to the considerable water pollution caused by the effluents released from the sector. We present a simple, scalable UV radiation-assisted method for treating methyl orange dye-polluted water from the textile industry using zirconium phosphate-loaded polyaniline-graphene oxide (PGZrP) composite. The new material was synthesized by sonochemically incorporating a polyaniline-graphene oxide composite with hydrothermally synthesized zirconium phosphate. The efficacy of PGZrP in eliminating methyl orange was evaluated using experimental conditions, and the adsorption capacity was investigated as a function of pH, temperature, adsorbent dosage, and adsorption period. The system follows Langmuir adsorption isotherm with pseudo-second-order kinetics. Thermodynamics studies showed that enthalpy (H°) and entropy (S°) values are positive, indicating that the dye adsorption increases with increasing temperature and is an endothermic reaction. The maximum adsorption capacity was found to be 36.45379 mg/g for methyl orange. Using the COMSOL Multiphysics CFD Platform, an attempt was made to check the temperature and concentration profile of a PGZrP composite in a real industrial system. The predicted result shows that there is no significant temperature change in the material during the adsorption process and the concentration of dye is mainly located on the top region of the bed. The developed zirconium phosphate decorated polyaniline-graphene oxide composite can be successfully utilized for the effective removal of methyl orange from industrial wastewater in bulk quantity which is coming from the textile industry, and the composite can be reused for several cycles with good efficiency. In this work, we have designed a miniaturized proof of concept to remove methyl orange from water which showed good dye removal efficiency.
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Affiliation(s)
- Vidhya C Valsalakumar
- Department of Chemistry, National Institute of Technology, Calicut, 673601, Kerala, India
| | - Yaddanapudi Sreevalli
- Department of Chemistry, National Institute of Technology, Calicut, 673601, Kerala, India
| | - Archana P K
- Department of Chemistry, National Institute of Technology, Calicut, 673601, Kerala, India
| | - Amala Shaliya Joseph
- Department of Chemistry, National Institute of Technology, Calicut, 673601, Kerala, India
| | - Siyad Ubaid
- Department of Chemistry, Mannaniya College of Arts and Science, Affiliated to the University of Kerala, Trivandrum, 695609, Kerala, India.
| | - Suni Vasudevan
- Department of Chemistry, National Institute of Technology, Calicut, 673601, Kerala, India.
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4
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Altaf A, Khan I, Khan A, Sadiq S, Humayun M, Khan S, Zaman S, Khan A, Abumousa RA, Bououdina M. Metal/Covalent Organic Framework Encapsulated Lead-Free Halide Perovskite Hybrid Nanocatalysts: Multifunctional Applications, Design, Recent Trends, Challenges, and Prospects. ACS OMEGA 2024; 9:34220-34242. [PMID: 39157131 PMCID: PMC11325423 DOI: 10.1021/acsomega.4c04532] [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: 05/13/2024] [Revised: 07/16/2024] [Accepted: 07/23/2024] [Indexed: 08/20/2024]
Abstract
Perovskites are bringing revolutionization in a various fields due to their exceptional properties and crystalline structure. Most specifically, halide perovskites (HPs), lead-free halide perovskites (LFHPs), and halide perovskite quantum dots (HPs QDs) are becoming hotspots due to their unique optoelectronic properties, low cost, and simple processing. HPs QDs, in particular, have excellent photovoltaic and optoelectronic applications because of their tunable emission, high photoluminescence quantum yield (PLQY), effective charge separation, and low cost. However, practical applications of the HPs QDs family have some limitations such as degradation, instability, and deep trap states within the bandgap, structural inflexibility, scalability, inconsistent reproducibility, and environmental concerns, which can be covered by encapsulating HPs QDs into porous materials like metal-organic frameworks (MOFs) or covalent-organic frameworks (COFs) that offer protection, prevention of aggregation, tunable optical properties, flexibility in structure, enhanced biocompatibility, improved stability under harsh conditions, consistency in production quality, and efficient charge separation. These advantages of MOFs-COFs help HPs QDs harness their full potential for various applications. This review mainly consists of three parts. The first portion discusses the perovskites, halide perovskites, lead-free perovskites, and halide perovskite quantum dots. In the second portion, we explore MOFs and COFs. In the third portion, particular emphasis is given to a thorough evaluation of the development of HPs QDs@MOFs-COFs based materials for comprehensive investigations for next-generation materials intended for diverse technological applications, such as CO2 conversion, pollutant degradation, hydrogen generation, batteries, gas sensing, and solar cells. Finally, this review will open a new gateway for the synthesis of perovskite-based quantum dots.
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Affiliation(s)
- Anam Altaf
- School
of Environmental & Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Iltaf Khan
- School
of Environmental & Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Aftab Khan
- College
of Material Science and Engineering, Beijing
University of Chemical Technology, Beijing 100029, China
| | - Samreen Sadiq
- Jiangsu
Key Laboratory of Sericultural and Animal Biotechnology, School of
Biotechnology, Jiangsu University of Science
and Technology, Zhenjiang 212100, China
| | - Muhammad Humayun
- Energy,
Water, and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Shoaib Khan
- College
of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin 150030, China
| | - Saeed Zaman
- College of
Chemistry, Liaoning University, Shenyang 110036, China
| | - Abbas Khan
- Energy,
Water, and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
- Department
of Chemistry, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Rasha A. Abumousa
- Energy,
Water, and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Mohamed Bououdina
- Energy,
Water, and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
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5
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Ghamarpoor R, Fallah A, Jamshidi M. A Review of Synthesis Methods, Modifications, and Mechanisms of ZnO/TiO 2-Based Photocatalysts for Photodegradation of Contaminants. ACS OMEGA 2024; 9:25457-25492. [PMID: 38911730 PMCID: PMC11191136 DOI: 10.1021/acsomega.3c08717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 06/25/2024]
Abstract
The environment being surrounded by accumulated durable waste organic compounds has become a critical crisis for human societies. Generally, organic effluents of industrial plants released into the water source and air are removed by some physical and chemical processes. Utilizing photocatalysts as cost-effective, accessible, thermally/mechanically stable, nontoxic, reusable, and powerful UV-absorber compounds creates a new gateway toward the removal of dissolved, suspended, and gaseous pollutants even in trace amounts. TiO2 and ZnO are two prevalent photocatalysts in the field of removing contaminants from wastewater and air. Structural modification of the photocatalysts with metals, nonmetals, metal ions, and other semiconductors reduces the band gap energy and agglomeration and increases the affinity toward organic compounds in the composite structures to expand their usability on an industrial scale. This increases the extent of light absorbance and improves the photocatalytic efficiency. Selecting a suitable synthesis method is necessary to prepare a target photocatalyst with distinct properties such as high specific surface area, numerous surface functional groups, and an appropriate crystalline phase. In this Review, significant parameters for the synthesis and modification of TiO2- and ZnO-based photocatalysts are discussed in detail. Several proposed mechanistic routes according to photocatalytic composite structures are provided. Some electrochemical analyses using charge carrier trapping agents and delayed recombination help to plot mechanistic routes according to the direction of photoexcited species (electron-hole pairs) and design more effective photocatalytic processes in terms of cost-effective photocatalysts, saving time and increasing productivity.
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Affiliation(s)
- Reza Ghamarpoor
- Department
of Petroleum Engineering, Faculty of Engineering, University of Garmsar, Garmsar 3588115589, Iran
- Constructional
Polymers and Composites Research Lab, School of Chemical, Petroleum
and Gas Engineering, Iran University of
Science and Technology (IUST), Tehran 1311416846, Iran
| | - Akram Fallah
- Department
of Chemical Technologies, Iranian Research
Organization for Science and Technology (IROST), Tehran 3313193685, Iran
| | - Masoud Jamshidi
- Constructional
Polymers and Composites Research Lab, School of Chemical, Petroleum
and Gas Engineering, Iran University of
Science and Technology (IUST), Tehran 1311416846, Iran
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6
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Ozdal OG. Green synthesis of Ag, Se, and Ag 2Se nanoparticles by Pseudomonas aeruginosa: characterization and their biological and photocatalytic applications. Folia Microbiol (Praha) 2024; 69:625-638. [PMID: 37917276 DOI: 10.1007/s12223-023-01100-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Abstract
Nanoparticles have drawn significant interest in a range of applications, ranging from biomedical to environmental sciences, due to their distinctive physicochemical characteristics. In this study, it was reported that simple biological production of Ag, Se, and bimetallic Ag2Se nanoparticles (NPs) with Pseudomonas aeruginosa is a promising, low-cost, and environmentally friendly method. For the first time in the scientific literature, Ag2Se nanoparticles have been generated via green bacterial biosynthesis. UV-vis spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and EDX were used to characterize the produced NPs. Biosynthesized NPs were examined for antibacterial, antibiofilm, and photocatalytic properties, and it was determined that the effects of NPs were dose dependent. The biosynthesized AgNPs, SeNPs, and Ag2Se NPs showed anti-microbial activity against Escherichia coli and Staphylococcus aureus. Minimal inhibitory concentrations (MICs) of E. coli and S. aureus were between 150 and 250 µg/mL. The NPs showed antibiofilm activity against E. coli and S. aureus at sub-MIC levels and reduced biofilm formation by at least 80% at a concentration of 200 µg/mL of each NPs. To photocatalyze the breakdown of Congo red, Ag, Se, and Ag2Se NPs were utilized, and their photocatalytic activity was tested at various concentrations and intervals. A minor decrease of photocatalytic degradation was detected throughout the NPs reuse operation (five cycles). Based on the encouraging findings, the synthesized NPs demonstrated antibacterial, antibiofilm, and photocatalytic properties, suggesting that they might be used in pharmaceutical, medical, environmental, and other applications.
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Affiliation(s)
- Ozlem Gur Ozdal
- Department of Biology, Science Faculty, Ataturk University, 25240, Erzurum, Turkey.
- Koprukoy Anatolian High School, Erzurum, Turkey.
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7
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Khan A, Sadiq S, Khan I, Humayun M, Jiyuan G, Usman M, Khan A, Khan S, Alanazi AF, Bououdina M. Preparation of visible-light active MOFs-Perovskites (ZIF-67/LaFeO 3) nanocatalysts for exceptional CO 2 conversion, organic pollutants and antibiotics degradation. Heliyon 2024; 10:e27378. [PMID: 38486780 PMCID: PMC10938116 DOI: 10.1016/j.heliyon.2024.e27378] [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: 01/20/2024] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/17/2024] Open
Abstract
Modern industries rapid expansion has heightened energy needs and accelerated fossil fuel depletion, contributing to global warming. Additionally, organic pollutants present substantial risks to aquatic ecosystems due to their stability, insolubility, and non-biodegradability. Scientists are currently researching high-performance materials to address these issues. LaFeO3 nanosheets (LFO-NS) were synthesized in this study using a solvothermal method with polyvinylpyrrolidone (PVP) as a soft template. The LFO-NS demonstrate superior performance, large surface area and charge separation than that of LaFeO3 nanoparticles (LFO-NP). The LFO-NS performance is further upgraded by incorporating ZIF-67. Our results confirmed the ZIF-67/LFO-NS nanocomposite have superior performances than pure LFO-NP and ZIF-67. The integration of ZIF-67 has enhanced the charge separation and promote the surface area of LFO-NSwhich was confirmed by various characterization techniques including TEM, HRTEM, DRS, EDX, XRD, FS, XPS, FT-IR, BET, PL, and RAMAN. The 5ZIF-67/LFO-NS sample showed significant activities for CO2 conversion, malachite green degradation, and antibiotics (cefazolin, oxacillin, and vancomycin) degradation. Furthermore, stability tests have confirmed that our optimal sample very active and stable. Furthermore, based on scavenger experiments and the photocatalytic degradation pathways, it has been established that H+ and •O2- are vital in the decomposition of MG and antibiotics. Our research work will open new gateways to prepare MOFs-Perovskites nanocatalysts for exceptional CO2 conversion, organic pollutants and antibiotics degradation.
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Affiliation(s)
- Aftab Khan
- Department of Physics, School of Science, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Samreen Sadiq
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Iltaf Khan
- School of Environmental & Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Muhammad Humayun
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
| | - Guo Jiyuan
- Department of Physics, School of Science, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Muhammad Usman
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC–HTCM), King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Abbas Khan
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
- Department of Chemistry, Abdul Wali Khan University Mardan, 23200, Pakistan
| | - Shoaib Khan
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Amal Faleh Alanazi
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
| | - Mohamed Bououdina
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
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8
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Saif Al Essai KR, Moheyelden RE, Bosu S, Rajamohan N, Rajasimman M. Enhanced mitigation of acidic and basic dyes by ZnO based nano-photocatalysis: current applications and future perspectives. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:139. [PMID: 38483690 DOI: 10.1007/s10653-024-01935-2] [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: 11/23/2023] [Accepted: 02/22/2024] [Indexed: 03/19/2024]
Abstract
Dye wastewater possess immense toxicity with carcinogenic properties and they persist in environment owing to their stability and resistance to chemical and photochemical changes. The bio degradability of dye-contaminated wastewater is low due to its complex molecular structure. Nano-photocatalysts based on zinc oxide are reported as one of the effective metal oxides for dye remediation due to their photostability, enhanced UV and visible absorption capabilities in an affordable manner. An electron-hole pair forms when electrons in the valence band of ZnO nano-photocatalyst transfer into the conduction band by absorbing UV light. The review article presents a detailed review on ZnO applications for treating acidic and basic dyes along with the dye degradation performance based on operating conditions and photocatalytic kinetic models. Several acidic and basic dyes have been shown to degrade efficiently using ZnO and its nanocomposites. Higher removal percentages for crystal violet was reported at pH 12 by ZnO/Graphene oxide catalyst under 400 nm UV light, whereas acidic dye Rhodamine B at a pH of 5.8 was degraded to 100% by pristine ZnO. The mechanism of action of ZnO nanocatalysts in degrading the dye contamination are reported and the research gaps to make these agents in environmental remediation on real time operations are discussed.
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Affiliation(s)
| | | | - Subrajit Bosu
- Chemical Engineering Section, Faculty of Engineering, Sohar University, 311, Sohar, Oman
| | - Natarajan Rajamohan
- Chemical Engineering Section, Faculty of Engineering, Sohar University, 311, Sohar, Oman.
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9
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Ajjaq A, Bulut F, Ozturk O, Acar S. Advanced NH 3 Detection by 1D Nanostructured La:ZnO Sensors with Novel Intrinsic p-n Shifting and Ultrahigh Baseline Stability. ACS Sens 2024; 9:895-911. [PMID: 38293781 DOI: 10.1021/acssensors.3c02256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Due to its stability, transportability, and ability to be produced using renewable energy sources, NH3 has become an attractive option for hydrogen production and storage. Detecting NH3 is then essential, being a toxic and flammable gas that can pose dangers if not properly monitored. ZnO chemiresistive sensors have shown great potential in real NH3 monitoring applications; yet, research and development in this area are ongoing due to reported limitations, like baseline instabilities and sensitivity to environmental factors, including temperature, humidity, and interferent gases. Herein, we suggest an approach to obtain sensors with competitive performance based on ZnO semiconducting metal oxides. For this purpose, one-dimensional nanostructured pure and La-doped ZnO films were synthesized hydrothermally. Incorporating large rare earth ions, like La, into the bulk lattice of ZnO is challenging and can lead to surface defects that are influential in gas-sensing reactions. The sensors experienced a temperature-induced p-n shifting at about 100 °C, verified by the Hall effect and AC impedance measurements. The doped sensor showed exceptional stepwise baseline stability and outstanding performance at a relatively low operating temperature (150 °C) with a sensing response of 91 at best (@ 50 ppm NH3) and recorded a tolerance to water vapor up to 70% RH. Alongside p-n shifting, the enhanced performance was discussed in correlation with La doping-triggered changes in the nanostructural and surfacial properties of the films. We validated the proposed technique by producing similar sensors and performing multiple replicates to ensure consistency and reproducibility. We also introduced the fill factor concept into the gas sensor field as a new trustworthy parameter that could improve sensor performance assessment and help rate sensors based on deviation from ideality.
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Affiliation(s)
- Ahmad Ajjaq
- Department of Physics, Faculty of Science, Gazi University, Ankara 06500, Turkey
| | - Fatih Bulut
- Scientific and Technological Research Applications and Research Center, Sinop University, Sinop 57000, Turkey
| | - Ozgur Ozturk
- Department of Electric and Electronics Engineering, Faculty of Engineering and Architecture, Kastamonu University, Kastamonu 37000, Turkey
| | - Selim Acar
- Department of Physics, Faculty of Science, Gazi University, Ankara 06500, Turkey
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10
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Sadiq S, Khan S, Khan I, Khan A, Humayun M, Wu P, Usman M, Khan A, Alanazi AF, Bououdina M. A critical review on metal-organic frameworks (MOFs) based nanomaterials for biomedical applications: Designing, recent trends, challenges, and prospects. Heliyon 2024; 10:e25521. [PMID: 38356588 PMCID: PMC10864983 DOI: 10.1016/j.heliyon.2024.e25521] [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: 12/11/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/16/2024] Open
Abstract
Nanomaterials (NMs) have garnered significant attention in recent decades due to their versatile applications in a wide range of fields. Thanks to their tiny size, enhanced surface modifications, impressive volume-to-surface area ratio, magnetic properties, and customized optical dispersion. NMs experienced an incredible upsurge in biomedical applications including diagnostics, therapeutics, and drug delivery. This minireview will focus on notable examples of NMs that tackle important issues, demonstrating various aspects such as their design, synthesis, morphology, classification, and use in cutting-edge applications. Furthermore, we have classified and outlined the distinctive characteristics of the advanced NMs as nanoscale particles and hybrid NMs. Meanwhile, we emphasize the incredible potential of metal-organic frameworks (MOFs), a highly versatile group of NMs. These MOFs have gained recognition as promising candidates for a wide range of bio-applications, including bioimaging, biosensing, antiviral therapy, anticancer therapy, nanomedicines, theranostics, immunotherapy, photodynamic therapy, photothermal therapy, gene therapy, and drug delivery. Although advanced NMs have shown great potential in the biomedical field, their use in clinical applications is still limited by issues such as stability, cytotoxicity, biocompatibility, and health concerns. This review article provides a thorough analysis offering valuable insights for researchers investigating to explore new design, development, and expansion opportunities. Remarkably, we ponder the prospects of NMs and nanocomposites in conjunction with current technology.
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Affiliation(s)
- Samreen Sadiq
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Shoaib Khan
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, China
| | - Iltaf Khan
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Aftab Khan
- Department of Physics, School of Science, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu, 212100, China
| | - Muhammad Humayun
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
| | - Ping Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212100, China
| | - Muhammad Usman
- Interdisciplinary Research Center for Hydrogen Technologies and Carbon Management (IRC-HTCM), King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia
| | - Abbas Khan
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
- Department of Chemistry, Abdul Wali Khan University Mardan, 23200, Pakistan
| | - Amal Faleh Alanazi
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
| | - Mohamed Bououdina
- Energy, Water and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh, 11586, Saudi Arabia
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11
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Samarasinghe LV, Muthukumaran S, Baskaran K. Recent advances in visible light-activated photocatalysts for degradation of dyes: A comprehensive review. CHEMOSPHERE 2024; 349:140818. [PMID: 38056717 DOI: 10.1016/j.chemosphere.2023.140818] [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: 08/24/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
The rapid development in industrialization and urbanization coupled with an ever-increasing world population has caused a tremendous increase in contamination of water resources globally. Synthetic dyes have emerged as a major contributor to environmental pollution due to their release in large quantities into the environment, especially owing to their high demand in textile, cosmetics, clothing, food, paper, rubber, printing, and plastic industries. Photocatalytic treatment technology has gained immense research attention for dye contaminated wastewater treatment due to its environment-friendliness, ability to completely degrade dye molecules using light irradiation, high efficiency, and no generation of secondary waste. Photocatalytic technology is evolving rapidly, and the foremost goal is to synthesize highly efficient photocatalysts with solar energy harvesting abilities. The current review provides a comprehensive overview of the most recent advances in highly efficient visible light-activated photocatalysts for dye degradation, including methods of synthesis, strategies for improving photocatalytic activity, regeneration and their performance in real industrial effluent. The influence of various operational parameters on photocatalytic activity are critically evaluated in this article. Finally, this review briefly discusses the current challenges and prospects of visible-light driven photocatalysts. This review serves as a convenient and comprehensive resource for comparing and studying the fundamentals and recent advancements in visible light photocatalysts and will facilitate further research in this direction.
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Affiliation(s)
| | - Shobha Muthukumaran
- Institute for Sustainability Industries and Liveable Cities, College of Sport, Health & Engineering, Victoria University, Melbourne, VIC, 8001, Australia
| | - Kanagaratnam Baskaran
- Faculty of Science, Engineering and Built Environment, Deakin University, Victoria, 3216, Australia
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12
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Meky AI, Hassaan MA, Fetouh HA, Ismail AM, El Nemr A. Hydrothermal fabrication, characterization and RSM optimization of cobalt-doped zinc oxide nanoparticles for antibiotic photodegradation under visible light. Sci Rep 2024; 14:2016. [PMID: 38263230 PMCID: PMC11231344 DOI: 10.1038/s41598-024-52430-8] [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: 08/25/2023] [Accepted: 01/18/2024] [Indexed: 01/25/2024] Open
Abstract
Photodegradation is considered a significant method engaged for the elimination of organic pollutants from water. In this work, hydrothermal cobalt-doped zinc oxide nanoparticles (Hy-Co-ZnO NPs) loaded with 5, 10, and 15% cobalt were prepared in a hydrothermal way and were investigated as a photocatalyst for the Ciprofloxacin (CIPF) degradation under visible irradiation using LED-light. Characterization approaches such as FTIR, XRD, XPS, DRS UV-vis spectroscopy, SEM, TEM, BET, EDX and TGA were used for the investigation of the fabricated Hy-Co-ZnO NPs. The studies indicated that 10% Hy-Co-ZnO NPs was the most efficient catalyst for the CIPF photolysis compared to ZnO NPs and other Hy-Co-ZnO NPs with 5 and 15% cobalt content. Higher photocatalytic activity (> 98%) of 20 mg/L of CIPF solution was attained within 60 min. The reaction kinetics showed that the first-order model is suitable for displaying the rate of reaction and amount of CIPF elimination with R2 = 0.9883. Moreover, Central composite design (CCD) optimization of the 10% Hy-Co-ZnO NPs was also studied.
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Affiliation(s)
- Asmaa I Meky
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mohamed A Hassaan
- Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt
| | - Howida A Fetouh
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Amel M Ismail
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Ahmed El Nemr
- Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt.
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13
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Khalid H, Haq AU, Fawad Zahoor A, Irfan A, Zaki MEA. An investigation of Ca-doped MgO nanoparticles for the improved catalytic degradation of thiamethoxam pesticide subjected to visible light irradiation. Sci Rep 2024; 14:1126. [PMID: 38212536 PMCID: PMC10784470 DOI: 10.1038/s41598-024-51738-9] [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: 08/28/2023] [Accepted: 01/09/2024] [Indexed: 01/13/2024] Open
Abstract
The remediation of pesticides from the environment is one of the most important technology nowadays. Herein, magnesium oxide (MgO) nanoparticles and calcium-doped magnesium oxide (Ca-doped MgO) nanoparticles were synthesized by the co-precipitation method and were used for the degradation of thiamethoxam pesticide in aqueous media. Characterization of the MgO and Ca-doped MgO nanoparticles were performed by XRD, SEM, EDX, and FT-IR analysis to verify the synthesis and variations in chemical composition. The band gap energy and crystalline size of MgO and Ca-doped MgO nanoparticles were found to be 4.8 and 4.7 eV and 33 and 34 nm respectively. The degradation of thiamethoxam was accomplished regarding the impact of catalyst dosage, contact time, temperature, pH, and initial pesticide concentration. The pH study indicates that degradation of thiamethoxam depends on pH and maximum degradation (66%) was obtained at pH 5 using MgO nanoparticles. In contrast, maximum degradation (80%) of thiamethoxam was observed at pH 8 employing Ca-doped MgO nanoparticles. The percentage degradation of thiamethoxam was initially increasing but decreased at higher doses of the catalysts. The degradation of the pesticide was observed to be increased with an increase in contact time while high at room temperature but decreased with a temperature rise. The effect of the initial concertation of pesticide indicates that degradation of pesticide increases at low concentrations but declines at higher concentrations. This research study reveals that doping of MgO nanoparticles with calcium enhanced the degradation of thiamethoxam pesticide in aqueous media.
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Affiliation(s)
- Huma Khalid
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Atta Ul Haq
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan.
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ali Irfan
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Magdi E A Zaki
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 13623, Riyadh, Saudi Arabia.
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Saadi H, Khaldi O, Pina J, Costa T, Seixas de Melo JS, Vilarinho P, Benzarti Z. Effect of Co Doping on the Physical Properties and Organic Pollutant Photodegradation Efficiency of ZnO Nanoparticles for Environmental Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:122. [PMID: 38202577 PMCID: PMC10780624 DOI: 10.3390/nano14010122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 12/27/2023] [Accepted: 12/30/2023] [Indexed: 01/12/2024]
Abstract
This paper presents a comprehensive investigation of the synthesis and characterization of Zn1-xCoxO (0 ≤ x ≤ 0.05) nanopowders using a chemical co-precipitation approach. The structural, morphological, and vibrational properties of the resulting ZnO nanostructures were assessed through X-ray diffraction, scanning electronic microscopy, and Raman spectroscopy to examine the influence of cobalt doping. Remarkably, a notable congruence between the experimental results and the density functional theory (DFT) calculations for the Co-doped ZnO system was achieved. Structural analysis revealed well-crystallized hexagonal wurtzite structures across all samples. The SEM images demonstrated the formation of spherical nanoparticles in all the samples. The vibrational properties confirmed the formation of a hexagonal wurtzite structure, with an additional Raman peak corresponding to the F2g vibrational mode characteristic of the secondary phase of ZnCo2O4 observed at a 5% cobalt doping concentration. Furthermore, a theoretical examination of cobalt doping's impact on the elastic properties of ZnO demonstrated enhanced mechanical behavior, which improves stability, recyclability, and photocatalytic activity. The photocatalytic study of the synthesized compositions for methylene blue (MB) dye degradation over 100 min of UV light irradiation demonstrated that Co doping significantly improves photocatalytic degradation. The material's prolonged lifetime, reduced rate of photogenerated charge carrier recombination, and increased surface area were identified as pivotal factors accelerating the degradation process. Notably, the photocatalyst with a Zn0.99Co0.01O composition exhibited exceptional efficiency compared to that reported in the literature. It demonstrated high removal activity, achieving an efficiency of about 97% in a shorter degradation time. This study underscores the structural and photocatalytic advancements in the ZnO system, particularly at lower cobalt doping concentrations (1%). The developed photocatalyst exhibits promise for environmental applications owing to its superior photocatalytic performance.
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Affiliation(s)
- Hajer Saadi
- Laboratory of Multifunctional Materials and Applications (LaMMA), Department of Physics, Faculty of Sciences of Sfax, University of Sfax, Soukra Road km 3.5, B.P. 1171, Sfax 3000, Tunisia;
| | - Othmen Khaldi
- LMOP(LR99ES17), Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia;
| | - João Pina
- CQC-IMS, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; (J.P.); (T.C.)
| | - Telma Costa
- CQC-IMS, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; (J.P.); (T.C.)
| | - J. Sérgio Seixas de Melo
- CQC-IMS, Department of Chemistry, University of Coimbra, 3004-535 Coimbra, Portugal; (J.P.); (T.C.)
| | - Paula Vilarinho
- CICECO–Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Zohra Benzarti
- Laboratory of Multifunctional Materials and Applications (LaMMA), Department of Physics, Faculty of Sciences of Sfax, University of Sfax, Soukra Road km 3.5, B.P. 1171, Sfax 3000, Tunisia;
- CEMMPRE, ARISE, Department of Mechanical Engineering, University of Coimbra, Rua Luís Reis Santos, 3030-788 Coimbra, Portugal
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15
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Murmu G, Samajdar S, Ghosh S, Shakeela K, Saha S. Tungsten-based Lindqvist and Keggin type polyoxometalates as efficient photocatalysts for degradation of toxic chemical dyes. CHEMOSPHERE 2024; 346:140576. [PMID: 38303401 DOI: 10.1016/j.chemosphere.2023.140576] [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: 08/04/2023] [Revised: 10/12/2023] [Accepted: 10/26/2023] [Indexed: 02/03/2024]
Abstract
Photocatalytic dye degradation employing polyoxometalates (POMs) has been a research focus for several years. We report the facile synthesis of tungsten-based Lindqvist and Keggin-type POMs that degrade toxic chemical dyes, methyl orange (MO) and methylene blue (MB), respectively. The Lindqvist POM, sodium hexatungstate, Na2W6O19, degrades MO under 100 W UV light irradiation within 15 min, whereas the Keggin POM, Ag4PW11VO40, degrades MB under 20 W visible light source within 180 min. The effect of various operating parameters, such as photocatalyst concentration, pH, time, and initial dye concentration, were assessed in the degradation of both dyes. The photoelectrochemical performance of the as-synthesized polyoxometalates shows that the Ag4PW11VO40 shows 2.4 times higher photocurrent density than Na2W6O19 at a potential of 0.9 V vs. Ag/AgCl. Electrochemical impedance analysis reveals that Ag4PW11VO40 exhibits much lower charge transfer resistance as compared to Na2W6O19, which indicates facile charge transfer at the electrode-electrolyte interface. Further Mott-Schottky measurements reveal that both the catalysts possess n-type semiconductivity and the charge carrier concentration of Ag4PW11VO40 (5.89 × 1019 cm-3) is 1.4 times higher as compared to Na2W6O19 (4.25 × 1019 cm-3). This work offers a new paradigm for designing polyoxometalates suitable for efficient photocatalytic degradation of organic dyes.
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Affiliation(s)
- Gajiram Murmu
- Materials Chemistry Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, Odisha 751013, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India
| | - Soumita Samajdar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India; Energy Materials & Devices Division, CSIR - Central Glass and Ceramic Research Institute, Kolkata, 700032, India
| | - Srabanti Ghosh
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India; Energy Materials & Devices Division, CSIR - Central Glass and Ceramic Research Institute, Kolkata, 700032, India
| | - K Shakeela
- B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, 600048, India.
| | - Sumit Saha
- Materials Chemistry Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, Odisha 751013, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India.
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16
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Sadiq S, Khan I, Shen Z, Wang M, Xu T, Khan S, Zhou X, Bahadur A, Rafiq M, Sohail S, Wu P. Recent Updates on Multifunctional Nanomaterials as Antipathogens in Humans and Livestock: Classification, Application, Mode of Action, and Challenges. Molecules 2023; 28:7674. [PMID: 38005395 PMCID: PMC10675011 DOI: 10.3390/molecules28227674] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/11/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023] Open
Abstract
Pathogens cause infections and millions of deaths globally, while antipathogens are drugs or treatments designed to combat them. To date, multifunctional nanomaterials (NMs), such as organic, inorganic, and nanocomposites, have attracted significant attention by transforming antipathogen livelihoods. They are very small in size so can quickly pass through the walls of bacterial, fungal, or parasitic cells and viral particles to perform their antipathogenic activity. They are more reactive and have a high band gap, making them more effective than traditional medications. Moreover, due to some pathogen's resistance to currently available medications, the antipathogen performance of NMs is becoming crucial. Additionally, due to their prospective properties and administration methods, NMs are eventually chosen for cutting-edge applications and therapies, including drug administration and diagnostic tools for antipathogens. Herein, NMs have significant characteristics that can facilitate identifying and eliminating pathogens in real-time. This mini-review analyzes multifunctional NMs as antimicrobial tools and investigates their mode of action. We also discussed the challenges that need to be solved for the utilization of NMs as antipathogens.
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Affiliation(s)
- Samreen Sadiq
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Iltaf Khan
- School of Environmental & Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China;
| | - Zhenyu Shen
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Mengdong Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Tao Xu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Sohail Khan
- Department of Pharmacy, University of Swabi, Khyber Pakhtunkhwa 94640, Pakistan;
| | - Xuemin Zhou
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
| | - Ali Bahadur
- College of Science, Mathematics, and Technology, Wenzhou-Kean University, Wenzhou 325060, China;
| | - Madiha Rafiq
- Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Department of Chemistry, Shantou University, Shantou 515063, China
| | - Sumreen Sohail
- Department of Information Technology, Careerera, Beltsville, MD 20705, USA;
| | - Ping Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212100, China; (S.S.); (Z.S.); (M.W.); (T.X.)
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17
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Hao P, Suo Y, Shi R, Zhang J, Li B, Yan Z, Wang J, Liu B, Wang Z, Qiao X. Preparation of Novel C/N-Doped LaFeO 3 Type Perovskite for Efficient Photocatalytic Degradation of Sodium Humate. ACS OMEGA 2023; 8:41744-41754. [PMID: 37970008 PMCID: PMC10633878 DOI: 10.1021/acsomega.3c06161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 11/17/2023]
Abstract
LaFeO3 chalcocite precursor was prepared by solid-phase milling method, and LaFeO3-type chalcocite composite catalyst, referred to as LFCN catalyst, was synthesized by in situ doping of carbon and nitrogen (urea, melamine, dicyandiamide, and carbon powder), The catalytic performance of the catalysts was investigated by the different mass ratios of LaFeO3 chalcocite precursor and carbon and nitrogen (1:1, 1:2, and 2:1) and the degradation mechanism. Various characterization analyses, such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Brunauer-Emmett-Teller (BET), showed that the doped composite LFCN catalysts exhibited a hemispherical network structure with a larger specific surface area than that of the pure phase LaFeO3 material. In addition, the LaFeO3 material adjusted the electronic structure of the original LaFeO3 chalcogenide material to a certain extent after in situ doping with organic C and N elements, which enhanced its lattice oxygen oxidation ability. In the study of the catalytic degradation of sodium humate solution under natural light conditions, the catalytic performance was significantly improved compared to that of the pure phase LaFeO3, and 10 mg of the catalyst degraded 30 mg/L of sodium humate solution in 50 min, with a degradation rate increasing from 40 to 98%. The degradation rate increased from 40 to 98% after 4 applications, indicating that the LFCN catalyst has good stability and significant catalytic degradation performance.
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Affiliation(s)
- Pengcheng Hao
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Yanli Suo
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Rui Shi
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Juan Zhang
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Bo Li
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Zhen Yan
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Jing Wang
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Bo Liu
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Zhongzhi Wang
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
| | - Xin Qiao
- Baotou Research Institute
of Rare Earths, Baotou 014030, China
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18
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Meky AI, Hassaan MA, Fetouh HA, Ismail AM, El Nemr A. Cube-shaped Cobalt-doped zinc oxide nanoparticles with increased visible-light-driven photocatalytic activity achieved by green co-precipitation synthesis. Sci Rep 2023; 13:19329. [PMID: 37935868 PMCID: PMC10630306 DOI: 10.1038/s41598-023-46464-7] [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: 09/02/2023] [Accepted: 11/01/2023] [Indexed: 11/09/2023] Open
Abstract
From the perspective of environmental protection, the highly efficient degradation of antibiotics and organic dyes in wastewater needs to be tackled as soon as possible. In this study, an ecofriendly and green cube-shaped cobalt-doped zinc oxide nanoparticles (Co-ZnO NPs) photocatalyst using Pterocladia Capillacea (P. Capillacea) water extract loaded with 5, 10, and 15% cobalt ions were formed via co-precipitation process to degrade antibiotics. The prepared Co-ZnO NPs were tested as a photocatalyst for the photodegradation of ciprofloxacin (CIPF) in the presence of a visible LED-light source. Co-ZnO NPs have been obtained through the co-precipitation method in the presence of P. Capillacea extract as a green capping agent and reducing agent, for the first time. Several characterization techniques including FTIR, XRD, BET, XPS, TEM, EDX, SEM, TGA and DRS UV-Vis spectroscopy were applied to study the prepared Co-ZnO NPs. XRD results suggested that the average size of these NPs ranged between 42.82 and 46.02 nm with a hexagonal wurtzite structure. Tauc plot shows that the optical energy bandgap of ZnO NPs (3.19 eV) gradually decreases to 2.92 eV by Co doping. Examinations showed that 5% Co-ZnO NPs was the highest efficient catalyst for the CIPF photodegradation when compared with ZnO NPs and other 10 and 15% Co-ZnO NPs. A 10 mg/L solution of CIPF was photo-degraded (100%) within the first 15 min irradiation. The kinetics showed that the first-order model is suitable for displaying the rate of reaction and amount of CIPF elimination with R2 = 0.952. Moreover, central composite design optimization of the 5% Co-doped ZnO NPs was also investigated.
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Affiliation(s)
- Asmaa I Meky
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Mohamed A Hassaan
- Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt
| | - Howida A Fetouh
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Amel M Ismail
- Department of Chemistry, Faculty of Science, Alexandria University, Alexandria, Egypt
| | - Ahmed El Nemr
- Environment Division, National Institute of Oceanography and Fisheries (NIOF), Kayet Bey, Elanfoushy, Alexandria, Egypt.
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Melinte V, Culica ME, Chibac-Scutaru AL. Cellulose acetate/polyurethane blend as support matrix with high optical transparency and improved mechanical properties for photocatalyst CeO 2 nanoparticles immobilization. Int J Biol Macromol 2023; 251:126210. [PMID: 37579894 DOI: 10.1016/j.ijbiomac.2023.126210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/03/2023] [Accepted: 08/05/2023] [Indexed: 08/16/2023]
Abstract
Advanced manufacturing technologies for efficient catalytic materials have triggered the rational design of catalysts as well as extensive investigation into preparative methodologies. Herein, we report the preparation of new versatile cellulose acetate/polyurethane (CA/PU) blends for efficient immobilization of CeO2 nanoparticles, the appropriate composition of polymer mixture being chosen after rigorous analysis (SEM, FTIR, optical, mechanical). The band gap energy for hybrid films ranged between 3.02 eV and 2.05 eV, the lowest value being measured for the film with Co-doped CeO2 NPs (B3 film). The best results in photodegradation of methylene blue under visible-light irradiation was attained after 50 min for B3 film (rate constant k = 45.34× 10-3 min-1), while the total mineralization of MB in the same conditions as evaluated by HPLC-ESI MS and TOC analyses was achieved after 90 min. Effect of co-ions (SO42-, Cl- or NO3-) on photocatalytic performance was studied, and scavenger tests were used to identify the active species involved in the photocatalytic mechanism. Also, the photocatalytic efficiency of B3 sample was tested for rhodamine B, metronidazole and 4-nitrophenol degradation. Evaluation of the stability and integrity of hybrid film after 5 catalysis cycles reveal that the photocatalytic potential is retained with no substantial structural changes.
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Affiliation(s)
- Violeta Melinte
- Polyaddition and Photochemistry Department, Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487, Iasi, Romania.
| | - Madalina Elena Culica
- Polyaddition and Photochemistry Department, Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487, Iasi, Romania
| | - Andreea Laura Chibac-Scutaru
- Polyaddition and Photochemistry Department, Petru Poni Institute of Macromolecular Chemistry, 41 A Grigore Ghica Voda Alley, 700487, Iasi, Romania.
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20
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Anandhakumari G, Jayabal P, Balasankar A, Ramasundaram S, Oh TH, Aruchamy K, Kallem P, Polisetti V. Synthesis of strontium oxide-zinc oxide nanocomposites by Co-precipitation method and its application for degradation of malachite green dye under direct sunlight. Heliyon 2023; 9:e20824. [PMID: 37867874 PMCID: PMC10585331 DOI: 10.1016/j.heliyon.2023.e20824] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/30/2023] [Accepted: 10/08/2023] [Indexed: 10/24/2023] Open
Abstract
Photocatalysts workable under direct sunlight are the safe and cost-effective option for water purification. The nanocomposites of strontium oxide and zinc oxide (SZ NCs) were synthesized using coprecipitation method. The respective precursors of SZ NCs were subjected to alkaline hydrolysis and subsequently thermally treated to yield SZ NCs. The SZ NCs with different ZnO composition was synthesized by varying the concentration of ZnO precursor from 0.2 to 1 M. The structural properties of SZ NCs evaluated using X-Ray diffraction (XRD), Thermogravimetric analysis (TGA), and Differential thermal analysis DTA). The optical properties of SZ NCs studied using ultraviolet-visible (UV-Vis) spectroscopic study. The trend observed in the intensity of XRD peaks indicated the occurrence of Zn doping in the crystalline lattice of SrO and the formation of SrO-ZnO composite. Upon incorporation of 1 M of ZnO precursor, the grain size of the SrO was decreased from 49.3 to 27.6 nm. The weight loss in the thermal analysis indicates the removal of carbonates from the sample upon heating and shows the formation of an oxide structure. UV-Vis spectra confirmed that the presence of SrO enhanced the sunlight absorption of SZ NCs. The increase in the composition of ZnO precursors increased the bandgap of SrO (2.09 eV) to the level of ZnO (3.14 eV). SZ NCs exhibited heterostructure morphology, where the nanosized domains with varying shapes (layered and rod-like) were observed. Under direct sunlight conditions, SZ NCs prepared using 1 M/0.6 M of SrO/ZnO precursors exhibited 15-20 % higher photocatalytic efficiency than neat SrO and ZnO. In precise, 1 mg of this SZ NC was degraded 98 % of malachite green dye dissolved in water (10 ppm) under direct sunlight. Additionally, the thermal stability results showed that 18 % decomposition was obtained due to the degradation impurities in SrO/ZnO catalysts and the XRD results revealed that no structural change is obtained in SrO/ZnO photocatalysts after stability test. The SZ NCs can be effectively used as safe and economic sunlight photocatalysts for water purification in remote areas without the electricity.
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Affiliation(s)
- Govindharaj Anandhakumari
- Department of Physics, Gobi Arts & Science College, Gobichettipalayam, Erode, Tamilnadu-638 453, India
| | - Palanisamy Jayabal
- Department of Physics, Gobi Arts & Science College, Gobichettipalayam, Erode, Tamilnadu-638 453, India
| | - Athinarayanan Balasankar
- Department of Physics, Gobi Arts & Science College, Gobichettipalayam, Erode, Tamilnadu-638 453, India
| | | | - Tae Hwan Oh
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, South Korea
| | - Kanakaraj Aruchamy
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, South Korea
| | - Parashuram Kallem
- Department of Environmental and Public Health, College of Health Sciences, Abu Dhabi University, Abu Dhabi, P.O. Box 59911, United Arab Emirates
| | - Veerababu Polisetti
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE−100 44 Stockholm, Sweden
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21
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Ashiegbu DC, Potgieter HJ. ZnO-based heterojunction catalysts for the photocatalytic degradation of methyl orange dye. Heliyon 2023; 9:e20674. [PMID: 37829801 PMCID: PMC10565771 DOI: 10.1016/j.heliyon.2023.e20674] [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: 06/26/2023] [Revised: 09/26/2023] [Accepted: 10/04/2023] [Indexed: 10/14/2023] Open
Abstract
In this study, a variety of ZnO-based heterojunctions with disparate wt.% doping of WO3 and BiOI have been prepared for the photodestruction of methyl orange (MO) dye in aqueous solution. The composites were analysed by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, optical studies, and nitrogen adsorption-desorption isotherms. The SEM images revealed non-uniform surfaces of the ZnO-BiOI based composites while mostly nodular morphology was observed for all three samples of ZnO-WO3. As the WO3 loading increased, more clustering was detected. The analysed samples exhibited characteristic peaks representative of the triclinic phase of WO3 and the hexagonal wurtzite structure of ZnO, while the diffractogram observed from the materials displayed distinct peaks corresponding to the crystalline phases of both BiOI and ZnO in their pure forms. Further evidence of the samples' characteristics includes the presence of distinct crystalline patterns without any impurity peaks, a red shift in the absorption spectra of the heterostructure, the detection of only the reference elements, and mostly Type IV isotherm adsorption. This study identified the ZnO-[10%]BiOI and ZnO-[10%]WO3 heterojunctions as the best performing photocatalysts, as MO was completely destroyed in 120 and 90 min, respectively. Thus, confirming 10% wt. as the optimal doping concentration for the best photo-activity in this study. The impact of varying process parameters demonstrates that at an elevated photocatalyst mass of 40 mg, both heterojunctions effectively degraded MO. The photodegradation efficiency of MO was more pronounced in strong acidic conditions (pH 2) when compared to high alkaline conditions (pH 11) for the ZnO-[10%]BiOI heterostructure. However, a decrease in performance was observed for both strong acidic and high alkaline pH values when the ZnO-[10%]WO3 heterostructure was applied. The kinetic analysis of the photodegradation study reveals that all the photodegradation experiments can be represented by the pseudo-first-order kinetic model. The findings from this investigation propose that the ZnO-[10%]BiOI heterojunction photocatalyst holds significant potential for the effective treatment of dye-contaminated wastewater.
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Affiliation(s)
- Darlington C. Ashiegbu
- School of Chemical and Metallurgical Engineering, University of the Witwatersrand Johannesburg, Private Bag X3 PO Wits 2050, Johannesburg, South Africa
| | - Herman J. Potgieter
- School of Chemical and Metallurgical Engineering, University of the Witwatersrand Johannesburg, Private Bag X3 PO Wits 2050, Johannesburg, South Africa
- Department of Natural Science, Manchester Metropolitan University, Chester Street, M1 5GD, Manchester, UK
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22
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Jha PK, Pokhum C, Soison P, Techato KA, Chawengkijwanich C. Comparative study of zinc oxide nanocomposites with different noble metals synthesized by biological method for photocatalytic disinfection of Escherichia coli present in hospital wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 88:1564-1577. [PMID: 37768755 PMCID: wst_2023_272 DOI: 10.2166/wst.2023.272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
Binary zinc oxide (ZnO) nanocomposites with different noble metals, silver (Ag) and ruthenium (Ru), were prepared from an aqueous leaf extract of Callistemon viminalis. The biosynthesized photocatalysts were characterized and examined for their photocatalytic disinfection against Escherichia coli isolated from hospital wastewater. The influence of the different noble metals showed a difference in physicochemical characteristics and photocatalytic efficiency between Ag-ZnO and Ru-ZnO. The photocatalytic degradation of methylene blue and photocatalytic disinfection were found to be in the order Ag-ZnO > Ru-ZnO > ZnO. The photocatalytic disinfection of Ag-ZnO reached a 75% reduction in 60 min, compared to 34 and 9% reductions of Ru-ZnO and ZnO, respectively. The kinetic reaction rate for the photocatalytic disinfection of Ag-ZnO was found to be 2.8 times higher than that of Ru-ZnO. The outstanding photocatalytic activity of Ag-ZnO over Ru-ZnO was attributed to higher crystallinity, greater UVA adsorption capacity, smaller particle size, and the additional antimicrobial effect of Ag itself. The C. viminalis-mediated Ag-ZnO nanocomposites can be a potential candidate for photocatalytic disinfection of drug-resistant E. coli in hospital wastewater.
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Affiliation(s)
- Pankaj Kumar Jha
- Department of Sustainable Energy Management, Faculty of Environmental Management, Prince of Songkla University, Hat Yai, Songkla 90110, Thailand E-mail:
| | - Chonlada Pokhum
- National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahonyothin Road, Pathum Thani 12120, Thailand
| | - Pichai Soison
- National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahonyothin Road, Pathum Thani 12120, Thailand; School of Energy, Environment and Materials, King Mongkut's University of Technology Thonburi, Pracha Uthit Road, Bang Mod, Bangkok 10140, Thailand
| | - Kua-Anan Techato
- Department of Sustainable Energy Management, Faculty of Environmental Management, Prince of Songkla University, Hat Yai, Songkla 90110, Thailand
| | - Chamorn Chawengkijwanich
- National Nanotechnology Center, National Science and Technology Development Agency, 111 Thailand Science Park, Phahonyothin Road, Pathum Thani 12120, Thailand
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23
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Gao X, Yin H, Guo C, Yan B, Li M, Xin L, Wu Z. Comprehensive removal of various dyes by thiourea modified chitosan/nano ZnS composite via enhanced photocatalysis: Performance and mechanism. Int J Biol Macromol 2023; 247:125677. [PMID: 37406916 DOI: 10.1016/j.ijbiomac.2023.125677] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/28/2023] [Accepted: 07/01/2023] [Indexed: 07/07/2023]
Abstract
Dyeing wastewater is a carcinogenic pollutant, which is widely known for its harmful effects on humans and marine organisms. In this study, a novel composite was prepared by blending thiourea modified chitosan with zinc sulfide nanoparticles (T-CS/ZnS) to comprehensively remove methyl orange (MO), rhodamine B (Rh B), and methylene blue (MB) effectively. Characterization results suggested that the synthesized composite has an irregular and rough surface that provided high specific surface area for adsorption process, while the strong optical response and low bandgap width contributed to the subsequent photocatalytic degradation of adsorbed dye molecules. Under optimum experimental conditions, the removal rates of MO, Rh B, and MB were 99.59 %, 99.49 %, and 91.04 %, respectively. Amino and hydroxyl groups provide electrons in photocatalytic reactions. The reaction process is consistent with the quasi-first-order kinetic model, and the material has good stability and regeneration potential. This study indicated that T-CS/ZnS composite is a highly effective material for the treatment of dyeing wastewaters.
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Affiliation(s)
- Xiangpeng Gao
- Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui 243032, China; School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Huiqing Yin
- Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui 243032, China; School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Cheng Guo
- Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui 243032, China; School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Boting Yan
- School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Mingyang Li
- School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Lili Xin
- Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui 243032, China; School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China
| | - Zhaoyang Wu
- Engineering Research Center of Biofilm Water Purification and Utilization Technology of Ministry of Education, Anhui University of Technology, Ma'anshan, Anhui 243032, China; School of Metallurgical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China.
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24
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Geldasa FT, Kebede MA, Shura MW, Hone FG. Experimental and computational study of metal oxide nanoparticles for the photocatalytic degradation of organic pollutants: a review. RSC Adv 2023; 13:18404-18442. [PMID: 37342807 PMCID: PMC10278095 DOI: 10.1039/d3ra01505j] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023] Open
Abstract
Photocatalysis is a more proficient technique that involves the breakdown or decomposition of different organic contaminants, various dyes, and harmful viruses and fungi using UV or visible light solar spectrum. Metal oxides are considered promising candidate photocatalysts owing to their low cost, efficiency, simple fabricating method, sufficient availability, and environment-friendliness for photocatalytic applications. Among metal oxides, TiO2 is the most studied photocatalyst and is highly applied in wastewater treatment and hydrogen production. However, TiO2 is relatively active only under ultraviolet light due to its wide bandgap, which limits its applicability because the production of ultraviolet is expensive. At present, the discovery of a photocatalyst of suitable bandgap with visible light or modification of the existing photocatalyst is becoming very attractive for photocatalysis technology. However, the major drawbacks of photocatalysts are the high recombination rate of photogenerated electron-hole pairs, the ultraviolet light activity limitations, and low surface coverage. In this review, the most commonly used synthesis method for metal oxide nanoparticles, photocatalytic applications of metal oxides, and applications and toxicity of different dyes are comprehensively highlighted. In addition, the challenges in the photocatalytic applications of metal oxides, strategies to suppress these challenges, and metal oxide studied by density functional theory for photocatalytic applications are described in detail.
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Affiliation(s)
- Fikadu Takele Geldasa
- Adama Science and Technology University, Department of Applied Physics P. O. Box1888 Adama Ethiopia
- Oda Bultum University, Department of Physics P. O. Box 226, Chiro Ethiopia
| | - Mesfin Abayneh Kebede
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa Florida Science Campus Johannesburg 1710 South Africa
| | - Megersa Wodajo Shura
- Adama Science and Technology University, Department of Applied Physics P. O. Box1888 Adama Ethiopia
| | - Fekadu Gashaw Hone
- Addis Ababa University, Department of Physics P.O. Box: 1176 Addis Ababa Ethiopia
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25
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Pascariu P, Gherasim C, Airinei A. Metal Oxide Nanostructures (MONs) as Photocatalysts for Ciprofloxacin Degradation. Int J Mol Sci 2023; 24:ijms24119564. [PMID: 37298517 DOI: 10.3390/ijms24119564] [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: 04/12/2023] [Revised: 05/24/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
In recent years, organic pollutants have become a global problem due to their negative impact on human health and the environment. Photocatalysis is one of the most promising methods for the removal of organic pollutants from wastewater, and oxide semiconductor materials have proven to be among the best in this regard. This paper presents the evolution of the development of metal oxide nanostructures (MONs) as photocatalysts for ciprofloxacin degradation. It begins with an overview of the role of these materials in photocatalysis; then, it discusses methods of obtaining them. Then, a detailed review of the most important oxide semiconductors (ZnO, TiO2, CuO, etc.) and alternatives for improving their photocatalytic performance is provided. Finally, a study of the degradation of ciprofloxacin in the presence of oxide semiconductor materials and the main factors affecting photocatalytic degradation is carried out. It is well known that antibiotics (in this case, ciprofloxacin) are toxic and non-biodegradable, which can pose a threat to the environment and human health. Antibiotic residues have several negative impacts, including antibiotic resistance and disruption of photosynthetic processes.
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Affiliation(s)
- Petronela Pascariu
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Carmen Gherasim
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Anton Airinei
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
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26
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Nadikatla SK, Chintada VB, Gurugubelli TR, Koutavarapu R. Review of Recent Developments in the Fabrication of ZnO/CdS Heterostructure Photocatalysts for Degradation of Organic Pollutants and Hydrogen Production. Molecules 2023; 28:molecules28114277. [PMID: 37298752 DOI: 10.3390/molecules28114277] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023] Open
Abstract
Researchers have recently paid a lot of attention to semiconductor photocatalysts, especially ZnO-based heterostructures. Due to its availability, robustness, and biocompatibility, ZnO is a widely researched material in the fields of photocatalysis and energy storage. It is also environmentally beneficial. However, the wide bandgap energy and quick recombination of the photoinduced electron-hole pairs of ZnO limit its practical utility. To address these issues, many techniques have been used, such as the doping of metal ions and the creation of binary or ternary composites. Recent studies showed that ZnO/CdS heterostructures outperformed bare ZnO and CdS nanostructures in terms of photocatalytic performance when exposed to visible light. This review largely concentrated on the ZnO/CdS heterostructure production process and its possible applications including the degradation of organic pollutants and hydrogen evaluation. The importance of synthesis techniques such as bandgap engineering and controlled morphology was highlighted. In addition, the prospective uses of ZnO/CdS heterostructures in the realm of photocatalysis and the conceivable photodegradation mechanism were examined. Lastly, ZnO/CdS heterostructures' challenges and prospects for the future have been discussed.
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Affiliation(s)
- Santhosh Kumar Nadikatla
- Chemistry Division, Department of Basic Sciences and Humanities, GMR Institute of Technology, Rajam 532127, Andhra Pradesh, India
| | - Vinod Babu Chintada
- Department of Mechanical Engineering, GMR Institute of Technology, Rajam 532127, Andhra Pradesh, India
| | - Thirumala Rao Gurugubelli
- Physics Division, Department of Basic Sciences and Humanities, GMR Institute of Technology, Rajam 532127, Andhra Pradesh, India
| | - Ravindranadh Koutavarapu
- Department of Robotics Engineering, College of Mechanical and IT Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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27
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Wang N, Li ZJ, Gao H, Li R, Xu XF, Li T, Long YZ, Zhang HD. Enhanced Visible-Photocatalytic Activities in Strong Acids and Strong Alkalis of Flexible Iron-SrTiO 3 Nanofibrous Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:6885-6894. [PMID: 37129447 DOI: 10.1021/acs.langmuir.3c00506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Traditional SrTiO3 (STO) materials have high brittleness and poor deformation resistance. In this work, macroscopically flexible iron-doped SrTiO3 (SFTO) nanofibrous membranes were prepared by electrospinning and calcination, which can be easily isolated and can maintain integrity to recycle as photocatalysts. Moreover, the SFTO nanofibrous membranes showed enhanced photocatalytic performance under strong acids (pH = 2) and strong alkalis (pH = 12). The SFTO nanofibrous membranes increased the catalytic rate of Congo red (CR) dye by about 10 times in visible light. The mechanism of photocatalytic activity enhancement was discussed by the combined effects of hydroxyl radicals and superoxide radicals. The successful preparation of SFTO nanofibrous membranes has offered a simple and economical approach to photocatalysis as well as environmental remediation.
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Affiliation(s)
- Nan Wang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Zhao-Jian Li
- Department of Neurosurgery, Affiliated Hospital of Qingdao University, No. 16 Jiangsu Road, Qingdao 266003, China
| | - Hong Gao
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Ru Li
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Xiao-Feng Xu
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Tong Li
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Yun-Ze Long
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Hong-Di Zhang
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
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28
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Li J, Xie J, Zhang X, Lu E, Cao Y. The Solid-State Synthesis of BiOIO 3 Nanoplates with Boosted Photocatalytic Degradation Ability for Organic Contaminants. Molecules 2023; 28:molecules28093681. [PMID: 37175089 PMCID: PMC10180272 DOI: 10.3390/molecules28093681] [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: 03/21/2023] [Revised: 04/04/2023] [Accepted: 04/17/2023] [Indexed: 05/15/2023] Open
Abstract
BiOIO3 exhibits excellent oxidation capacity in the photocatalytic degradation of contaminants thanks to its unique polarized electric and internal electrostatic field. However, the synthetic method of BiOIO3 nanomaterials is mainly focused on hydrothermal technology, owing to its high energy consumption and time-consuming nature. In this work, a BiOIO3 nanosheet was prepared by a simple solid-state chemical reaction, which was identified by XRD, EDS, XPS, and HRTEM. Benefiting from the strong oxidation ability of the valence band maximum, the distinctive layer structure, and the promoted generation of ·O2-, the BiOIO3 nanosheet exhibits excellent photo-degradation activity for methyl orange (MO) and its apparent rate constant is 0.2179 min-1, which is about 3.02, 8.60, and 10.26 times higher than that of P25, BiOCl, and Bi2O2CO3, respectively. Interestingly, the BiOIO3 nanosheet also has good photocatalytic degradation performance for phenolic compounds; in particular, the degradation rate of BPA can reach 96.5% after 16 min, mainly due to hydroxylation reaction.
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Affiliation(s)
- Jia Li
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, China
| | - Jing Xie
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, China
| | - Xiaojing Zhang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, China
| | - Enhui Lu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, China
| | - Yali Cao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830046, China
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29
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Huang Q, Meng G, Zhang X, Fang Z, Yan Y, Liao B, Zhang L, Chen P. Natural manganese sand activates sodium hypochlorite to enhance ionic organic contaminants removal: Optimization, modeling, and mechanism. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 866:161310. [PMID: 36603642 DOI: 10.1016/j.scitotenv.2022.161310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/09/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
Although sodium hypochlorite acting as an oxidant has been investigated for the role it plays in the degradation of organic contaminants, little attention has been paid to its activation and efficient utilization. In this study, natural manganese sand (NMS) was verified to be effective for activation of sodium hypochlorite (NaClO). Due to the generation of O2-, the removal efficiency of ionic organic contaminants in NMS/NaClO system was 1.9-4.1 times higher than that in NMS or NaClO alone. Hence, NMS activated NaClO system performed ~96.6 % contaminants removal efficiency at a wide pH range (pH 5-9). Kinetic modeling yielded that the NMS dosage was more important than NaClO dosage. Long-term stability was observed in the presence of various salts (bicarbonate, sulfate, phosphate, and chloride). Characterization results revealed that electron transfer among NMS, NaClO, and organic contaminants was responsible for NaClO activation. Then NaClO-based Fenton-like process was proposed by tracing the degradation intermediates of methyl orange (MO) and generations of reactive oxygen species in the MO/NMS/NaClO system. This study presents the potential of NMS to activate NaClO and enhance ionic organic contaminants removal from aquatic environments.
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Affiliation(s)
- Qian Huang
- National Engineering Laboratory for Industrial Wastewater Treatment, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Guangyuan Meng
- National Engineering Laboratory for Industrial Wastewater Treatment, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xinwan Zhang
- National Engineering Laboratory for Industrial Wastewater Treatment, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhengnan Fang
- National Engineering Laboratory for Industrial Wastewater Treatment, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ying Yan
- National Engineering Laboratory for Industrial Wastewater Treatment, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China; State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China
| | - Benren Liao
- Shanghai No. 4 Reagent & H.V. Chemical Co. Ltd., Shanghai 200940, China; Shanghai No. 4 Reagent Chemical Co., Ltd., Shanghai 201512, China
| | - Lehua Zhang
- National Engineering Laboratory for Industrial Wastewater Treatment, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China; State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, East China University of Science and Technology, Shanghai 200237, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Peng Chen
- National Engineering Laboratory for Industrial Wastewater Treatment, School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China.
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30
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Alothman AA, Ayub A, Hachim SK, Mohammed BM, Hussain F, Altaf M, Kadhim ZJ, Lafta HA, Alnassar YS, Shams MA, Almuhous NA, Ouladsmane M, Sillanpaa M. Facile synthesis and comparative study of the enhanced photocatalytic degradation of two selected dyes by TiO 2-g-C 3N 4 composite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:37332-37343. [PMID: 36571676 DOI: 10.1007/s11356-022-24839-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Photocatalysis is considered a useful technique employed for the dye degradation through solar light, visible or UV light irradiation. In this study, TiO2, g-C3N4, and TiO2-g-C3N4 nanocomposites were successfully synthesized and studied for their ability to degrade Rhodamine B (RhB) and Reactive Orange 16 (RO-16), when exposed to visible light. The analytical techniques including XRD, TEM, SEM, DRS, BET, XPS, and fluorescence spectroscopy were used to explore the characteristics of all the prepared semiconductors. The photocatalytic performance of synthesized materials has been tested against both the selected dyes, and various experimental parameters were studied. The experimental results demonstrate that, in comparison to other fabricated composites, the TiO2-g-C3N4 composite with the optimal weight ratio of g-C3N4 (15 wt%) to TiO2 has shown outstanding degrading efficiency against RhB (89.62%) and RO-16 (97.20%). The degradation experiments were carried out at optimal conditions such as a catalyst load of 0.07 g, a dye concentration of 50 ppm, and a temperature of 50 ℃ at neutral pH in 90 min. In comparison to pure TiO2 and g-C3N4, the TiO2-g-C3N4, a semiconductor, has shown higher degradation efficiency due to its large surface area and decreased electron-hole recombination. The scavenger study gave an idea about the primary active species (-OH radicals), responsible for dye degradation. The reusability of TiO2-g-C3N4 was also examined in order to assess the composite sustainability.
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Affiliation(s)
- Asma A Alothman
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Asif Ayub
- Institute of Chemistry, The Islamia University of Bahawalpur, Bahawalpur, 63100, Pakistan.
| | - Safa K Hachim
- Medical Laboratory Techniques Department, Al-Farahidi University, Baghdad, Iraq
| | | | - Farhat Hussain
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Muhammad Altaf
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | | | | | | | - Marwah A Shams
- Technical Engineering College, Al-Ayen University, Nasiriyah, Thi-Qar, Iraq
| | - Nada A Almuhous
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mohamed Ouladsmane
- Department of Chemistry, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Mika Sillanpaa
- Department of Biological and Chemical Engineering, Aarhus University, Norrebrogade 44, 8000, Aarhus C, Denmark
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31
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Muslim M, Ahmad M, Jane Alam M, Ahmad S. Experimental and Density Functional Theory investigation on one- and two-dimensional coordination polymers and their ZnO-doped nanocomposites materials for wastewater remediation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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32
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Balkrishna A, Sharma D, Sharma RK, Bhattacharya K, Varshney A. Investigating the Role of Classical Ayurveda-Based Incineration Process on the Synthesis of Zinc Oxide Based Jasada Bhasma Nanoparticles and Zn 2+ Bioavailability. ACS OMEGA 2023; 8:2942-2952. [PMID: 36713743 PMCID: PMC9878631 DOI: 10.1021/acsomega.2c05391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 12/27/2022] [Indexed: 06/18/2023]
Abstract
Jasada bhasma (JB) is a zinc oxide-based Indian traditional Ayurveda-based herbo-metallic nanoparticle used for the treatment of zinc (Zn) deficiency and autoimmune and inflammatory disorders. JB is made by following the Ayurveda-based guidelines using zinc oxide (ZnO) as a raw material and going through 17 cycles of the high-temperature incineration and trituration process known as "Ma̅raṇa" in the presence of herbal decoctions prepared from the leaves ofAzadirachta indica andAloe vera gel. These cycles improve the purity of the parent material and transform its physicochemical properties, converting it into nanoparticles. However, there still exists a knowledge gap regarding the role of incineration in the physicochemical transformation of the Zn raw material into JB nanoparticles and the biological interaction of the final product. In the present study, the JB samples obtained during different Ma̅raṇa cycles were carefully studied for their physicochemical transformation using analytical methods such as powdered X-ray diffraction (XRD), small-angle X-ray scattering (SAXS), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy, Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, and dynamic light scattering (DLS). According to the XRD results, the Zn and oxygen molecules in hexagonal ZnO wurtzite crystals gradually realigned as a result of repeated heat treatments that caused lattice tension and crystal size reduction from 53.14 to 42.40 nm. A morphological transition from 1.5 μm rod shape to 31 nm in the JB particles can be seen using FESEM and SAXS analyses. The existence of 10 nm-sized nanoparticles in the finished product was confirmed by HRTEM. The presence of ZnO was confirmed in all samples by FTIR and Raman spectroscopies. Cell viability analysis showed an inhibitory concentration 50% of >1000 μg/mL for JB nanoparticles, revealing no adverse effects in human colon Caco-2 cells. A dose-dependent uptake and intracellular accumulation of JB nanoparticles were observed in Caco-2 cells using inductively coupled plasma-based mass spectroscopy (ICP-MS). Bioavailability of Zn2+ ions (6% w/w) through JB dissolution in acidic pH 4.0 was observed, representing the stomach and intracellular lysosomal physiological conditions. Therefore, the study showed that the repeated incineration cycles produced biocompatible JB nanoparticles through the physicochemical transformation at molecular levels capable of delivering bioavailable Zn2+ ions under physiological conditions. In conclusion, the medicinal properties of JB nanoparticles described in Ayurveda were found to originate from their small size and dissolution properties, formed through the classical incineration-based synthesis process.
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Affiliation(s)
- Acharya Balkrishna
- Drug
Discovery and Development Division, Patanjali
Research Institute, Haridwar, Uttarakhand249405, India
- Department
of Allied and Applied Sciences, University
of Patanjali, Patanjali
Yog Peeth, Roorkee-Haridwar Road, Haridwar, Uttarakhand249405, India
- Patanjali
Yog Peeth (UK) Trust, 40 Lambhill Street,
Kinning Park, GlasgowG41 1AU, United Kingdom
| | - Deepika Sharma
- Department
of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh160014, India
| | - Rohit K. Sharma
- Department
of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh160014, India
| | - Kunal Bhattacharya
- Drug
Discovery and Development Division, Patanjali
Research Institute, Haridwar, Uttarakhand249405, India
| | - Anurag Varshney
- Drug
Discovery and Development Division, Patanjali
Research Institute, Haridwar, Uttarakhand249405, India
- Department
of Allied and Applied Sciences, University
of Patanjali, Patanjali
Yog Peeth, Roorkee-Haridwar Road, Haridwar, Uttarakhand249405, India
- Special
Centre for Systems Medicine, Jawaharlal
Nehru University, New
Mehrauli Road, New Delhi, Delhi110067, India
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Xiong Z, Chen H, Lu L, Shan R, Zhang Y, Yuan H, Chen Y. Nitrogen-Doped TiO 2/Nitrogen-Containing Biochar Composite Catalyst as a Photocatalytic Material for the Decontamination of Aqueous Organic Pollutants. ACS OMEGA 2023; 8:791-803. [PMID: 36643427 PMCID: PMC9835194 DOI: 10.1021/acsomega.2c06127] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
In this study, a waste walnut shell-derived biochar enriched with nitrogen (N-biochar) is mixed with nitrogen-doped TiO2 (N-TiO2) to fulfill an affordable composite material for the degradation of methyl orange (MO). Results showed that porous structure and oxygen-containing functional groups of biochar facilitate contact with MO during the reaction process. Meanwhile, doped nitrogen has a positive effect on improving the reaction activity due to the existence of a substituted state and a gap state in the catalyst. It was revealed that the N-TiO2/N-biochar (NCNT0.2/1) exhibited better photocatalytic degradation efficiency (97.6%) and mineralization rate (85.4%) of MO than that of TiO2, N-TiO2, and TiO2/N-biochar due to its stronger synergistic effect of N, TiO2, and biochar, in accordance with its high charge separation by photoluminescence (PL) analysis. Trapping experiments showed that ·OH is the predominant active species during the decolorization and mineralization process of MO. After five repeated use, the loss of activity of the catalyst was negligible. In addition, the catalytic degradation process was consistent with the pseudo-first-order kinetic model with the rate constant of 4.02 × 10-2 min-1.
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Affiliation(s)
- Zuhong Xiong
- Guangzhou
Institute of Energy Conversion, Chinese
Academy of Sciences, Guangzhou510640, China
- CAS
Key Laboratory of Renewable Energy, Guangdong
Provincial Key Laboratory of New and Renewable Energy Research and
Development, Guangzhou510640, China
| | - Hongyuan Chen
- Guangzhou
Institute of Energy Conversion, Chinese
Academy of Sciences, Guangzhou510640, China
- CAS
Key Laboratory of Renewable Energy, Guangdong
Provincial Key Laboratory of New and Renewable Energy Research and
Development, Guangzhou510640, China
- School
of Engineering Science, University of Science
and Technology of China, Hefei230027, Anhui, China
| | - Lili Lu
- Guangzhou
Institute of Energy Conversion, Chinese
Academy of Sciences, Guangzhou510640, China
- CAS
Key Laboratory of Renewable Energy, Guangdong
Provincial Key Laboratory of New and Renewable Energy Research and
Development, Guangzhou510640, China
| | - Rui Shan
- Guangzhou
Institute of Energy Conversion, Chinese
Academy of Sciences, Guangzhou510640, China
- CAS
Key Laboratory of Renewable Energy, Guangdong
Provincial Key Laboratory of New and Renewable Energy Research and
Development, Guangzhou510640, China
| | - Yuyuan Zhang
- School
of Materials Science and Hydrogen Energy, Foshan University, Foshan528000, Guangdong, China
| | - Haoran Yuan
- Guangzhou
Institute of Energy Conversion, Chinese
Academy of Sciences, Guangzhou510640, China
- CAS
Key Laboratory of Renewable Energy, Guangdong
Provincial Key Laboratory of New and Renewable Energy Research and
Development, Guangzhou510640, China
| | - Yong Chen
- Guangzhou
Institute of Energy Conversion, Chinese
Academy of Sciences, Guangzhou510640, China
- CAS
Key Laboratory of Renewable Energy, Guangdong
Provincial Key Laboratory of New and Renewable Energy Research and
Development, Guangzhou510640, China
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Xue Y, Kamali M, Zhang X, Askari N, De Preter C, Appels L, Dewil R. Immobilization of photocatalytic materials for (waste)water treatment using 3D printing technology - advances and challenges. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120549. [PMID: 36336185 DOI: 10.1016/j.envpol.2022.120549] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/26/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Photocatalysis has been considered a promising technology for the elimination of a wide range of pollutants in water. Various types of photocatalysts (i.e., homojunction, heterojunction, dual Z-scheme photocatalyst) have been developed in recent years to address the drawbacks of conventional photocatalysts, such as the large energy band gap and rapid recombination rate of photogenerated electrons and holes. However, there are still challenges in the design of photocatalytic reactors that limit their wider application for real (waste)water treatment, such as difficulties in their recovery and reuse from treated (waste)waters. 3D printing technologies have been introduced very recently for the immobilization of materials in novel photocatalytic reactor designs. The present review aims to summarize and discuss the advances and challenges in the application of various 3D printing technologies (i.e., stereolithography, inkjet printing, and direct ink writing) for the fabrication of stable photocatalytic materials for (waste)water treatment purposes. Furthermore, the limitations in the implementation of these technologies to design future generations of photocatalytic reactors have been critically discussed, and recommendations for future studies have been presented.
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Affiliation(s)
- Yongtao Xue
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Mohammadreza Kamali
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Xi Zhang
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Najmeh Askari
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Clem De Preter
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Lise Appels
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
| | - Raf Dewil
- KU Leuven, Department of Chemical Engineering, Process and Environmental Technology Lab, J. De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium; University of Oxford, Department of Engineering Science, Parks Road, Oxford OX1 3PJ, United Kingdom.
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Ma LX, Zhou WJ, Li LY, Zha M, Li BL, Wu B, Hu CJ. A Cu(II)-tetra(imidazole) coordination polymer and its g-C3N4 composite of photodegradation of organic dyes. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Shahadat Hossain M, Furusawa T, Sato M. Sucrose-derived carbon template-assisted synthesis of zinc oxide hollow microspheres: Investigating the effect of hollow morphology on photocatalytic activity. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Gnanasekaran L, Chen WH, Soto-Moscoso M. Highly operative NiO/ZnO nanocomposites for photocatalytic removal of azo dye. CHEMOSPHERE 2022; 308:136528. [PMID: 36165839 DOI: 10.1016/j.chemosphere.2022.136528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/09/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
The far-reaching technology of semiconductors in treating water pollutants reduces serious health hazards to humans and other eco-systems. With this interpretation, this work is attempted for the first time to synthesize nanosized pristine NiO and ZnO materials, and NiO/ZnO (70:30, 50:50) composites by co-precipitation method. The synthesized materials were then portrayed for their properties using various instrumental techniques such as X-ray diffraction (XRD), Transmission electron microscope (TEM), Energy dispersive X-ray spectrum (EDXS), Fourier transform Infrared spectrum (FT-IR). The main approach of this work is connected with the ultra violet (UV) photocatalytic degradation of MO (methyl orange) by employing the synthesized nanomaterials as catalysts. In view of results, the photocatalytic degradation of NiO/ZnO (70:30) has reported the greatest efficiency than the other catalysts. This outcome lies with the consideration of higher content of NiO present in the composite than ZnO. Further, there was the existence of higher surface area analysed from the BET result. Also, the NiO/ZnO (50:50) sample showed lower degradation efficiency in terms of formed agglomeration when surveyed through TEM. Besides, the positive mechanism of photocatalysis reaction forms the essential hydroxyl radicals which correspond to MO degradation. Moreover, the highly efficient NiO/ZnO (70:30) sample has been trialled for photocatalytic repetition process to observe the stability of degradation. It has accounted with good efficiency for 5 repeated cycles. Finally for UV degradation, the recognized photocatalytic aspect was due to the surface morphology enhanced surface area, synergistic effects of metal oxides and electron-hole charge separation.
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Affiliation(s)
- Lalitha Gnanasekaran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile.
| | - Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan; Department of Mechanical Engineering, National Chin-Yi University of Technology, Taichung 411, Taiwan
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Haspulat Taymaz B, Demir M, Kamış H, Orhan H, Aydoğan Z, Akıllı A. Facile and green synthesis of ZnO nanoparticles for effective photocatalytic degradation of organic dyes and real textile wastewater. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022:1-12. [PMID: 36437748 DOI: 10.1080/15226514.2022.2150142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Remediation of organic dyes from wastewater in textile industries is a big challenge to decreasing water pollution. This study was aimed at the preparation of ZnO nanoparticles (NPs) and their application as a photocatalyst for the degradation of methylene blue (MB), sunfix red (SR) and real textile wastewater (RTW) under both UV and visible irradiations. The ZnO NPs were synthesized with a green Thymus vulgaris leaf extract-supported approach following the calcination process. 50 mg L-1 MB and 50 mg L-1 SR dyes were completely photodegrade under UV irradiation after only 20 and 45 minutes, respectively, in the presence of 1.0 mg/mL ZnO NPs. When they are exposed to visible light, the degradation efficiency reached 91 and 75% within 60 and 120 min, respectively. Photocatalytic measurements of RTW depict that 95% (within 60 min under UV illumination) and 79% (within 90 min under visible illumination) were degraded, respectively. The enhanced photodegradation can be attributed to the narrowing of the bandgap of the ZnO NPs, high crystallinity and nearly hexagonal morphology with an average size of 20-30 nm. The present results show that ZnO NPs could potentially be applied for high-efficiency degradation of organic dyes and RTW under both UV and visible light irradiation.
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Affiliation(s)
| | - Muslum Demir
- Department of Chemical Engineering, Osmaniye Korkut Ata University, Osmaniye, Türkiye
| | - Handan Kamış
- Department of Chemical Engineering, Konya Technical University, Konya, Türkiye
| | - Hüseyin Orhan
- Department of Chemical Engineering, Konya Technical University, Konya, Türkiye
| | - Zuhal Aydoğan
- Department of Chemical Engineering, Konya Technical University, Konya, Türkiye
| | - Aleyna Akıllı
- Department of Chemical Engineering, Konya Technical University, Konya, Türkiye
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Rawat S, Singh J. Synthesis of nZnO from waste batteries by hydrometallurgical method for photocatalytic degradation of organic pollutants under visible light irradiation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 318:115518. [PMID: 35759965 DOI: 10.1016/j.jenvman.2022.115518] [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: 12/31/2021] [Revised: 04/26/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Waste zinc carbon (Zn-C) batteries are generated worldwide in a large amount. They are non-rechargeable and costly to recycle. Therefore, they end up in the landfills where they create hazards for humans and for environment as well. Zn-C batteries are rich in concentration of different heavy metals so they can be subjected for the recovery of metals for the development of valuable new materials. In this study authors have proposed an easy hydrometallurgical method for the recovery of zinc from waste Zn-C batteries to synthesize nano zinc oxide (nZnO) photocatalyst. The prepared nZnO particles were irregular in shape, highly crystalline in nature with crystallite size 23.94 nm. The band gap of the photocatalyst was 3.1 eV. The photocatalytic activity of the synthesised nZnO was tested for the degradation of three organic pollutants namely; phenol, p-nitrophenol (PNP) and crystal violet dye (CV) in an aqueous solution under visible light irradiation. nZnO showed a good catalytic efficiency for the degradation of all the three pollutants, however, the crystal violet (CV) removal was best in comparison with the other pollutants, it was minimally effected by the increase in CV concentration. The maximum degradation of phenol, PNP and CV was found to be 95.03 ± 0.2%, 88.63 ± 0.1% and 97.87 ± 0.4%, respectively. The degradation data was fitted best with pseudo-first-order kinetic model. The photocatalyst was recyclable and its regeneration ability was higher for initial three cycles. The intermediate compounds formed in the process of degradation were determined by liquid chromatography and mass spectroscopy (LC-MS) analysis.
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Affiliation(s)
- Shalu Rawat
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, India
| | - Jiwan Singh
- Department of Environmental Science, Babasaheb Bhimrao Ambedkar University, Lucknow, 226025, India.
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Photocatalytic degradation of methylene blue, rhodamine B, methyl orange and Eriochrome black T dyes by modified ZnO nanocatalysts: A concise review. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109764] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Synthesis, Characterization, and Solar Photo-Activation of Chitosan-Modified Nickel Magnetite Bio-Composite for Degradation of Recalcitrant Organic Pollutants in Water. Catalysts 2022. [DOI: 10.3390/catal12090983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Photocatalysis is a promising process for decomposing harmful organic pollutants in water. In this study, solar/photocatalytic degradation of two model azo dyes, i.e., methylene blue (MB) and methyl red (MR), in water usinga nanostructured chitosan-modified nickel magnetite (CS-NM) bio-composite was investigated. The CS-NM bio-composite was synthesized through a co-precipitation method and characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), thermogravimetry (TGA), and UV-Vis spectroscopy. FTIR analysis showed the uniform incorporation and conjugation of nickel magnetite (NM) into the chitosan (CS) polymer matrix. SEM showed that the average particle size was 0.5 μm. The TGA results revealed the good thermal stability of the prepared bio-composite at 300 °C. The point of zero charge was calculated as 7.5. The effect of water quality and process parameters, such as concentration of dyes, catalyst dose, solution pH, and temperatures, was investigated, for application purposes. The solar/CS-NM photocatalysis resulted in 99 and 96% degradation of individual MB and MR (C0 = 50 ppm), respectively, in 90 min. The degradation of MB and MR by solar/CS-NM photocatalysis followed pseudo-first-order kinetics, with observed rate constants (k) of 0.077 and 0.072 min−1, respectively. The CS-NM photocatalyst showed high recyclability, represented by only a 4–6% loss in the photocatalytic efficiency, after four cycles. The results showed that solar/CS-NM photocatalysis is an efficient technique for degrading recalcitrant organic pollutants, such as azo dyes, in water environments.
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Zhang M, Wang F, Shi X, Wei J, Yan W, Dong Y, Hu H, Wei K. Preparation and Photodegradation Properties of Carbon-Nanofiber-Based Catalysts. Polymers (Basel) 2022; 14:polym14173584. [PMID: 36080659 PMCID: PMC9460344 DOI: 10.3390/polym14173584] [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: 07/24/2022] [Revised: 08/21/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, an iron oxide/carbon nanofibers (Fe2O3/CNFs) composite was prepared by a combination of electrospinning and hydrothermal methods. The characterization of Fe2O3/CNFs was achieved via scanning electron microscopy (SEM), infrared spectroscopy (IR), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). It is shown that when the hydrothermal reaction time was 180 °C and the reaction time was 1 h, the Fe2O3 nanoparticle size was about 90 nm with uniform distribution. The photodegradation performance applied to decolorize methyl orange (MO) was investigated by forming a heterogeneous Fenton catalytic system with hydrogen peroxide. The reaction conditions for the degradation of MO were optimized with the decolorization rate up to more than 99% within 1 h, which can decompose the dyes in water effectively. The degradation process of MO by Fenton oxidation was analyzed by a UV-visible NIR spectrophotometer, and the reaction mechanism was speculated as well.
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Affiliation(s)
- Mingpan Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Fuli Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Xinran Shi
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Jing Wei
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Weixia Yan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Yihang Dong
- Suzhou Best Color Nanotechnology Co., Ltd., Suzhou 215000, China
| | - Huiqiang Hu
- Guangzhou Inspection Testing and Certification Group Co., Ltd., Guangzhou 511447, China
- Correspondence: (H.H.); (K.W.)
| | - Kai Wei
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
- Correspondence: (H.H.); (K.W.)
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Rathnasekara R, Hari P. Enhancing the Efficiency of Dye‐Sensitized Solar Cells (DSSCs) by Nanostructured Ag‐doped ZnO Electrodes. ChemistrySelect 2022. [DOI: 10.1002/slct.202200830] [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)
- Rusiri Rathnasekara
- Department of Physics and Engineering Physics University of Tulsa Tulsa Oklahoma 74104 USA
| | - Parameswar Hari
- Department of Physics and Engineering Physics University of Tulsa Tulsa Oklahoma 74104 USA
- Oklahoma Photovoltaic Research Institute University of Tulsa Tulsa Oklahoma 74104 USA
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sadek Kadari A, Khane Y, Nebatti Ech-Chergui A, Popa A, Guezzoul M, Silipas D, Bennabi F, Zoukel A, Akyildiz E, Driss-Khodja K, Amrani B. Growth, properties and photocatalytic degradation of congo red using Gd:ZnO thin films under visible light. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Bio-capped and green synthesis of ZnO/g-C3N4 nanocomposites and its improved antibiotic and photocatalytic activities: An exceptional approach towards environmental remediation. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.07.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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46
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Saeed U, Jilani A, Iqbal J, Al-Turaif H. Reduced graphene oxide-assisted graphitic carbon nitride@ZnO rods for enhanced physical and photocatalytic degradation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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47
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Molten salt flux synthesis of cobalt doped refractory double perovskite Sr 2CoxGa1-xNbO6: A spectroscopic investigation for multifunctional materials. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Biological Inspired Green Synthesis of TiO2 Coupled g-C3N4 Nanocomposites and Its Improved Activities for Sulfadiazine and Bisphenol A Degradation. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02317-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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49
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Cavalcante EH, Candido ICM, de Oliveira HP, Silveira KB, Víctor de Souza Álvares T, Lima EC, Thyrel M, Larsson SH, Simões dos Reis G. 3-Aminopropyl-triethoxysilane-Functionalized Tannin-Rich Grape Biomass for the Adsorption of Methyl Orange Dye: Synthesis, Characterization, and the Adsorption Mechanism. ACS OMEGA 2022; 7:18997-19009. [PMID: 35694524 PMCID: PMC9178721 DOI: 10.1021/acsomega.2c02101] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
A biomass amino silica-functionalized material was successfully prepared by a simple sol-gel method. 3-Aminopropyltriethoxysilane (APTES) was added to a tannin-rich grape residue to improve its physicochemical properties and enhance the adsorption performance. The APTES functionalization led to significant changes in the material's characteristics. The functionalized material was efficiently applied in the removal of methyl orange (MO) due to its unique characteristics, such as an abundance of functional groups on its surface. The adsorption process suggests that the electrostatic interactions were the main acting mechanism of the MO dye removal, although other interactions can also take place. The functionalized biomass achieved a very high MO dye maximum adsorption capacity (Q max) of 361.8 mg g-1. The temperature positively affected the MO removal, and the thermodynamic studies indicated that the adsorption of MO onto APTES-functionalized biomass was spontaneous and endothermic, and enthalpy is driven in the physisorption mode. The regeneration performance revealed that the APTES-functionalized biomass material could be easily recycled and reused by maintaining very good performance even after five cycles. The adsorbent material was also employed to treat two simulated dye house effluents, which showed 48% removal. At last, the APTES biomass-based material may find significant applications as a multifunctional adsorbent and can be used further to separate pollutants from wastewater.
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Affiliation(s)
- Edmo H.
M. Cavalcante
- Institute
of Materials Science, Federal University
of Sao Francisco Valley, Juazeiro 48920-310, BA, Brazil
| | - Iuri C. M. Candido
- Institute
of Materials Science, Federal University
of Sao Francisco Valley, Juazeiro 48920-310, BA, Brazil
| | - Helinando P. de Oliveira
- Institute
of Materials Science, Federal University
of Sao Francisco Valley, Juazeiro 48920-310, BA, Brazil
| | - Kamilla Barreto Silveira
- Institute
of Materials Science, Federal University
of Sao Francisco Valley, Juazeiro 48920-310, BA, Brazil
| | | | - Eder C. Lima
- Institute
of Chemistry, Federal University of Rio
Grande do Sul (UFRGS), Av. Bento Gonçalves, Porto Alegre 9500, Rio Grande do Sul, Brazil
| | - Mikael Thyrel
- Swedish
University of Agricultural Sciences, Department of Forest Biomaterials and Technology, Umeå 90183, Sweden
| | - Sylvia H. Larsson
- Swedish
University of Agricultural Sciences, Department of Forest Biomaterials and Technology, Umeå 90183, Sweden
| | - Glaydson Simões dos Reis
- Swedish
University of Agricultural Sciences, Department of Forest Biomaterials and Technology, Umeå 90183, Sweden
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50
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Effects of Waste-Derived ZnO Nanoparticles against Growth of Plant Pathogenic Bacteria and Epidermoid Carcinoma Cells. CRYSTALS 2022. [DOI: 10.3390/cryst12060779] [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
Green synthesis of zinc oxide nanoparticles (ZnO NPs) has recently gained considerable interest because it is simple, environmentally friendly, and cost-effective. This study therefore aimed to synthesize ZnO NPs by utilizing bioactive compounds derived from waste materials, mangosteen peels, and water hyacinth crude extracts and investigated their antibacterial and anticancer activities. As a result, X-ray diffraction analysis confirmed the presence of ZnO NPs without impurities. An ultraviolet–visible absorption spectrum showed a specific absorbance peak around 365 nm with an average electronic band gap of 2.79 eV and 2.88 eV for ZnO NPs from mangosteen peels and a water hyacinth extract, respectively. An SEM analysis displayed both spherical shapes of ZnO NPs from the mangosteen peel extract (dimension of 154.41 × 172.89 nm) and the water hyacinth extract (dimension of 142.16 × 160.30 nm). Fourier transform infrared spectroscopy further validated the occurrence of bioactive molecules on the produced ZnO NPs. By performing an antibacterial activity assay, these green synthesized ZnO NPs significantly inhibited the growth of Xanthomonas oryzae pv. oryzae, Xanthomonas axonopodis pv. citri, and Ralstonia solanacearum. Moreover, they demonstrated potent anti-skin cancer activity in vitro. Consequently, this study demonstrated the possibility of using green-synthesized ZnO NPs in the development of antibacterial or anticancer agents. Furthermore, this research raised the prospect of increasing the value of agricultural waste.
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