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Oliveira EM, Rodrigues A, Santos JS, Trivinho-Strixino F, Dalla Costa da Rocha R, Sikora MS. Effluent toxicity study using biomarkers for ciprofloxacin photoelectrocatalytic degradation by bismuth-doped titanium dioxide nanotubes. ENVIRONMENTAL TECHNOLOGY 2023:1-13. [PMID: 38158753 DOI: 10.1080/09593330.2023.2298664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024]
Abstract
Ciprofloxacin hydrochloride (CIP) is a broad-spectrum synthetic antibiotic often found in domestic sewage and industrial waste due to the inefficiency of conventional treatments. Given the potential risk of drug accumulation, this study presents coatings of titanium dioxide nanotubes (TiO2) doped with different bismuth (Bi) concentrations to degrade CIP through photocatalytic and photoelectrochemical processes. Characterization studies revealed that bismuth (Bi) doping affected the morphology of the materials, with concentrations of 0.01 and 0.05 mol L-1, resulting in collapsed materials with a smaller active surface area. Photocatalysis tests for all the materials exhibited a similar degree of efficiency to photolysis, approximately 33%. Ecotoxicity tests using the biomarkers Lactuca sativa L., Lemna minor, and Artemia salina indicated that, although they were similar to photolysis in terms of efficiency, the effluents generated when employing the doped catalysts showed lower levels of toxicity, with the best results achieved for the material doped with 0.005 mol L-1 of Bi, with a toxicity level approximately 40% lower. Photoelectrocatalysis proved to be the most efficient CIP degradation technique. The highest degradation rate was observed for materials doped with 0.005 mol L-1 of Bi, with an efficiency of 46%, which is 1.4 times more efficient than photolysis. These results demonstrate that materials doped with low amounts of Bi can be effectively used as photoanodes for drug degradation, as their performance is superior, and the final product generated exhibits low toxicity to living organisms.
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Affiliation(s)
- E M Oliveira
- Department of Chemistry, Federal University of Technology - Paraná (UTFPR), Pato Branco, Brazil
- Midwestern Parana State University (UNICENTRO), Guarapuava, Brazil
| | - A Rodrigues
- Department of Physics, Chemistry, and Mathematics, Federal University of São Carlos (UFSCar), Sorocaba, Brazil
| | - J S Santos
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
| | - F Trivinho-Strixino
- Department of Physics, Chemistry, and Mathematics, Federal University of São Carlos (UFSCar), Sorocaba, Brazil
| | - R Dalla Costa da Rocha
- Department of Chemistry, Federal University of Technology - Paraná (UTFPR), Pato Branco, Brazil
| | - M S Sikora
- Department of Chemistry, Federal University of Technology - Paraná (UTFPR), Pato Branco, Brazil
- Midwestern Parana State University (UNICENTRO), Guarapuava, Brazil
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Sadreddini S, Jodati H, Evis Z, Keskin D. Novel barium-doped-baghdadite incorporated PHBV-PCL composite fibrous scaffolds for bone tissue engineering. J Mech Behav Biomed Mater 2023; 148:106185. [PMID: 37837873 DOI: 10.1016/j.jmbbm.2023.106185] [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: 08/21/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 10/16/2023]
Abstract
Bioceramic/polymer composites have dragged a lot of attention for treating hard tissue damage in recent years. In this study, we synthesized barium-doped baghdadite (Ba-BAG), as a novel bioceramic, and later developed fibrous composite poly (hydroxybutyrate) co (hydroxyvalerate)- polycaprolactone (PHBV-PCL) scaffolds containing different amounts of baghdadite (BAG) and Ba-BAG, intended to be used in bone regeneration. Our results demonstrated that BAG and Ba-doped BAG powders were synthesized successfully using the sol-gel method and their microstructural, physicochemical, and cytotoxical properties results were evaluated. In the following, PHBV/PCL composite scaffolds containing different amounts of BAG and Ba-BAG (1, 3, and 5 wt%) were produced by the wet electrospinning method. The porosity of scaffolds decreased from 78% to 72% in Ba-BAG-incorporated PHBV/PCL scaffolds. The compressive strength of the scaffolds was between 4.69 and 9.28 kPa, which was increased to their maximum values in the scaffolds with Ba-BAG. The presence of BAG and Ba-BAG in the polymer scaffolds resulted in increasing bioactivity, and it was introduced as a suitable way to control the degradation rate of scaffolds. The presence of the BAG component was a major reason for higher cell proliferation in reinforced PHBV/PCL polymeric scaffolds, while Ba existence played its influential role in the higher osteogenic activity of cells on Ba-BAG incorporated PHBV/PCL scaffolds. Thus, the incorporation of Ba-BAG bioceramic materials into the structure of polymeric PHBV/PCL scaffolds promoted their various properties, and allow these scaffolds to be used as promising candidates in bone tissue engineering applications.
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Affiliation(s)
- Sanaossadat Sadreddini
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Hossein Jodati
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Zafer Evis
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara, 06800, Turkey.
| | - Dilek Keskin
- Department of Biomedical Engineering, Middle East Technical University, Ankara, 06800, Turkey; Department of Engineering Sciences, Middle East Technical University, Ankara, 06800, Turkey
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Luque Morales M, Luque Morales PA, Chinchillas Chinchillas MDJ, Orozco Carmona VM, Gómez Gutiérrez CM, Vilchis Nestor AR, Villarreal Sánchez RC. Theoretical and Experimental Study of the Photocatalytic Properties of ZnO Semiconductor Nanoparticles Synthesized by Prosopis laevigata. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6169. [PMID: 37763447 PMCID: PMC10533018 DOI: 10.3390/ma16186169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 08/30/2023] [Accepted: 08/31/2023] [Indexed: 09/29/2023]
Abstract
In this work, the photocatalytic activity of nanoparticles (NPs) of zinc oxide synthetized by Prosopis laevigata as a stabilizing agent was evaluated in the degradation of methylene blue (MB) dye under UV radiation. The theoretical study of the photocatalytic degradation process was carried out by a Langmuir-Hinshelwood-Hougen-Watson (LHHW) model. Zinc oxide nanoparticles were synthesized by varying the concentration of natural extract of Prosopis laevigata from 1, 2, and 4% (weight/volume), identifying the samples as ZnO_PL1%, ZnO_PL2%, and ZnO_PL4%, respectively. The characterization of the nanoparticles was carried out by Fourier transform infrared spectroscopy (FT-IR), where the absorption band for the Zn-O vibration at 400 cm-1 was presented; by ultraviolet-visible spectroscopy (UV-vis) the value of the band gap was calculated, resulting in 2.80, 2.74 and 2.63 eV for the samples ZnO_PL1%, ZnO_PL2%, and ZnO_PL4%, respectively; XRD analysis indicated that the nanoparticles have a hexagonal zincite crystal structure with an average crystal size of 55, 50, and 49 in the sample ZnO_PL1%, ZnO_PL2%, and ZnO_PL4%, respectively. The morphology observed by TEM showed that the nanoparticles had a hemispherical shape, and the ZnO_PL4% sample presented sizes ranging between 29 and 45 nm. The photocatalytic study showed a total degradation of the MB in 150, 120, and 60 min for the samples ZnO_PL1%, ZnO_PL2%, and ZnO_PL4%, respectively. Also, the model explains the experimental observation of the first-order kinetic model in the limit of low concentrations of dye, indicating the influence of the mass transfer processes.
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Affiliation(s)
- Mizael Luque Morales
- Facultad de Ingeniería Arquitectura y Diseño, Universidad Autónoma de Baja California, Ensenada 22860, Mexico; (M.L.M.); (P.A.L.M.); (C.M.G.G.)
| | - Priscy Alfredo Luque Morales
- Facultad de Ingeniería Arquitectura y Diseño, Universidad Autónoma de Baja California, Ensenada 22860, Mexico; (M.L.M.); (P.A.L.M.); (C.M.G.G.)
| | | | - Víctor Manuel Orozco Carmona
- Departamento de Metalurgia e Integridad Estructural, Centro de Investigación en Materiales Avanzados, Chihuahua 31136, Mexico
| | - Claudia Mariana Gómez Gutiérrez
- Facultad de Ingeniería Arquitectura y Diseño, Universidad Autónoma de Baja California, Ensenada 22860, Mexico; (M.L.M.); (P.A.L.M.); (C.M.G.G.)
| | | | - Rubén César Villarreal Sánchez
- Facultad de Ingeniería Arquitectura y Diseño, Universidad Autónoma de Baja California, Ensenada 22860, Mexico; (M.L.M.); (P.A.L.M.); (C.M.G.G.)
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Barcelos DA, Gonçalves MC. Daylight Photoactive TiO 2 Sol-Gel Nanoparticles: Sustainable Environmental Contribution. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2731. [PMID: 37049025 PMCID: PMC10095711 DOI: 10.3390/ma16072731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/16/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
Visible-light-photoactive titania micro- or nanoparticles excel in a wide range of industrial areas, particularly in environmental remediation. The sol-gel methodology is one pivotal technique which has been successfully used to synthesize either crystalline and amorphous TiO2 micro- and nanoparticles due to its outstanding chemical simplicity and versatility, along with the green chemistry approach. This short review aims to collect and discuss the most recent developments in visible-light-photoactive titania-based nanoparticles in the environmental remediation area. Titania co-doping, titania composite design, and, recently, amorphous networks have been the most used strategies to address this goal. Finally, a prediction regarding the future of these fields is given.
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Affiliation(s)
- Daniel Alves Barcelos
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
- Centro de Química Estrutural, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
- Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Universidade de Lisboa, 2695-066 Bobadela, Portugal
| | - Maria Clara Gonçalves
- Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal;
- Centro de Química Estrutural, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Abd Rahman N, Choong CE, Pichiah S, Nah IW, Kim JR, Oh SE, Yoon Y, Choi EH, Jang M. Recent advances in the TiO2 based photoreactors for removing contaminants of emerging concern in water. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122294] [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]
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Mohamed WA, Abd El-Gawad HH, Handal HT, Galal HR, Mousa HA, Elsayed BA, Labib AA, Abdel-Mottaleb M. TiO2 quantum dots: Energy consumption cost,germination, and phytotoxicity studies, recycling photo and solar catalytic processes of reactive yellow 145 dye and natural industrial wastewater. ADV POWDER TECHNOL 2023. [DOI: 10.1016/j.apt.2022.103923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Xie Y, Hu J, Esmaeili H, Wang D, Zhou Y. A review study on wastewater decontamination using nanotechnology: Performance, mechanism and environmental impacts. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.118023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Synthesis and Application of Innovative and Environmentally Friendly Photocatalysts: A Review. Catalysts 2022. [DOI: 10.3390/catal12101074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Modern society faces two major challenges: removing pollutants from water and producing energy from renewable sources. To do this, science proposes innovative, low-cost, and environmentally friendly methods. The heterogeneous photocatalysis process fits perfectly in this scenario. In fact, with photocatalysis, it is possible both to mineralize contaminants that are not easily biodegradable and to produce hydrogen from the water splitting reaction or from the conversion of organic substances present in water. However, the main challenge in the field of heterogeneous photocatalysis is to produce low-cost and efficient photocatalysts active under visible light or sunlight. The objective of this review is to compare the new proposals for the synthesis of innovative photocatalysts that reflect the requirements of green chemistry, applied both in the removal of organic contaminants and in hydrogen production. From this comparison, we want to bring out the strengths and weaknesses of the proposals in the literature, but above all, new ideas to improve the efficiency of heterogeneous photocatalysis guaranteeing the principles of environmental and economic sustainability.
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Ikram M, Ul Haq MA, Haider A, Haider J, Ul-Hamid A, Shahzadi I, Bari MA, Ali S, Goumri-Said S, Kanoun MB. The enhanced photocatalytic performance and first-principles computational insights of Ba doping-dependent TiO 2 quantum dots. NANOSCALE ADVANCES 2022; 4:3996-4008. [PMID: 36133333 PMCID: PMC9470062 DOI: 10.1039/d2na00361a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 08/16/2022] [Indexed: 05/14/2023]
Abstract
Degradation in the presence of visible light is essential for successfully removing dyes from industrial wastewater, which is pivotal for environmental and ecological safety. In recent years, photocatalysis has emerged as a prominent technology for wastewater treatment. This study aimed to improve the photocatalytic efficiency of synthesized TiO2 quantum dots (QDs) under visible light by barium (Ba) doping. For this, different weight ratios (2% and 4%) of Ba-doped TiO2 QDs were synthesized under ambient conditions via a simple and modified chemical co-precipitation approach. The QD crystal structure, functional groups, optical features, charge-carrier recombination, morphological properties, interlayer spacing, and presence of dopants were analyzed. The results showed that for 4% Ba-doped TiO2, the effective photocatalytic activity in the degradation process of methylene blue (MB) dye was 99.5% in an alkaline medium. Density functional theory analysis further corroborated that the band gap energy was reduced when Ba was doped into the TiO2 lattice, implying a considerable redshift of the absorption edge due to in-gap states near the valence band.
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Affiliation(s)
- Muhammad Ikram
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore Lahore 54000 Punjab Pakistan
| | - Muhammad Ahsan Ul Haq
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - Ali Haider
- Department of Clinical Medicine and Surgery, University of Veterinary and Animal Sciences Lahore 54000 Punjab Pakistan
| | - Junaid Haider
- Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences Tianjin 300308 China
| | - Anwar Ul-Hamid
- Center for Engineering Research, Research Institute, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Iram Shahzadi
- Punjab University College of Pharmacy, University of the Punjab 54000 Pakistan
| | - Muhammad Ahsaan Bari
- Solar Cell Applications Research Lab, Department of Physics, Government College University Lahore Lahore 54000 Punjab Pakistan
| | - Salamat Ali
- Department of Physics, Riphah Institute of Computing and Applied Sciences (RICAS), Riphah International University 14 Ali Road Lahore Pakistan
| | - Souraya Goumri-Said
- College of Science, Physics Department, Alfaisal University P. O. Box 50927 Riyadh 11533 Saudi Arabia
| | - Mohammed Benali Kanoun
- Department of Physics, College of Science, King Faisal University P. O. Box 400 Al-Ahsa 31982 Saudi Arabia
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Self-Cleaning Coatings for the Protection of Cementitious Materials: The Effect of Carbon Dot Content on the Enhancement of Catalytic Activity of TiO2. COATINGS 2022. [DOI: 10.3390/coatings12050587] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The urgent demand for pollution protection of monuments and buildings forced the interest towards specific preservation methods, such as the application of photocatalytic coatings with self-cleaning and protective activity. TiO2 photocatalysts without and with a variety of carbon dots loading (TC0, TC25–75) were synthesized via a green, simple, low cost and large-scale hydrothermal method using citric acid, hydroxylamine and titanium isopropoxide (TTIP) and resulted in uniform anatase phase structures. In photocatalysis experiments, TC25 and TC50 composites with 1:3 and 1:1 mass ratio of C-dots solution to TTIP, respectively, showed the best degradation efficiency for methyl orange (MO) under UV-A light, simulated solar light and sunlight compared to TiO2, commercial Au/TiO2 (TAu) and catalysts with higher C-dot loading (TC62.5 and TC75). Treatment of cement mortars with a mixture of photocatalyst and a consolidant (FX-C) provided self-cleaning activity under UV-A and visible light. This study produced a variety of new, durable, heavy metal-free C-dots/TiO2 photocatalysts that operate well under outdoor weather conditions, evidencing the C-dot dosage-dependent performance. For the building protection against pollution, nanostructured photocatalytic films were proposed with consolidation and self-cleaning ability under solar irradiation, deriving from combined protective silica-based agents and TiO2 photocatalysts free or with low C-dot content.
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