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Taheri M, Ketabi M, Al Shboul AM, Mahinnezhad S, Izquierdo R, Deen MJ. Integrated pH Sensors Based on RuO 2/GO Nanocomposites Fabricated Using the Aerosol Jet Printing Method. ACS OMEGA 2023; 8:46794-46803. [PMID: 38107955 PMCID: PMC10720306 DOI: 10.1021/acsomega.3c06309] [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: 08/24/2023] [Accepted: 10/03/2023] [Indexed: 12/19/2023]
Abstract
An aerosol jet printing (AJP) process for depositing ruthenium dioxide (RuO2) as a promising material for pH sensing is reported. Graphene oxide (GO) with a large surface area was used for the in situ sol-gel deposition of RuO2 nanoparticles on its surface. The cosolvent ratio and solid loading of the solution are adjusted to form a printable and stable ink. The monodispersed aerosol was atomized on the surface of the screen-printed carbon electrode in order to develop an integrated pH sensor. The RuO2-GO pH sensor demonstrates excellent performance, with a rapid response time of less than 5 s and high sensitivity in the pH range of 4-10. Compared to traditional carbon electrodes, the RuO2-GO sensor shows up to four times higher sensitivity. The increased sensitivity is a result of the consistent attachment of small-crystallized RuO2 nanoparticles onto the surface of GO sheets, leading to a synergistic effect. Thanks to the AJP method as a facile and cost-effective integration technique, the fabricated electrodes can serve as an alternative to traditional rigid pH electrodes for accurate pH measurement.
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Affiliation(s)
- Mahtab Taheri
- Electrical
and Computer Engineering (ECE) Department, McMaster University, 1280 Main Street W, Hamilton, Ontario L8S4K1, Canada
| | - Mohsen Ketabi
- Department
of Electrical Engineering, École
de Technologie Supérieure, Montreal, Quebec H3C 1K3 Canada
| | - Ahmad M. Al Shboul
- Department
of Electrical Engineering, École
de Technologie Supérieure, Montreal, Quebec H3C 1K3 Canada
| | - Shirin Mahinnezhad
- Department
of Electrical Engineering, École
de Technologie Supérieure, Montreal, Quebec H3C 1K3 Canada
| | - Ricardo Izquierdo
- Department
of Electrical Engineering, École
de Technologie Supérieure, Montreal, Quebec H3C 1K3 Canada
| | - M. Jamal Deen
- Electrical
and Computer Engineering (ECE) Department, McMaster University, 1280 Main Street W, Hamilton, Ontario L8S4K1, Canada
- School
of Biomedical Engineering, McMaster University, 1280 Main Street W, Hamilton, Ontario L8S4K1, Canada
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Sinha A, Sahu SK, Biswas S, Ghorai TK. Synthesis of CeO 2/ZrO 2/ZnO nano alloy oxide and investigation of photocatalysis of naphthol orange under sunlight. RSC Adv 2023; 13:22029-22042. [PMID: 37483663 PMCID: PMC10359764 DOI: 10.1039/d3ra03579d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 07/08/2023] [Indexed: 07/25/2023] Open
Abstract
Novel metal-like cerium- and zirconium-doped ZnO photocatalysts were prepared herein with various proportions of molar ratios via a cost-effective co-precipitation method. The effects of novel metal doping on the photocatalytic activity of ZnO were studied. Various techniques were used to investigate the structural, morphological, and elemental composition, particle size, optical properties, and catalytic activity of the synthesized photocatalysts. It was found that the crystallite size and particle size of the nano alloy oxides were 15.12 ± 1 and 5 ± 1 nm, respectively, and the surface morphology of the nanoparticles indicated a satisfactory surface area. Among all synthesized nanocomposites, CexZrxZnxO5 (x = 1) [CZ1Z2-A] exhibited satisfactory photo-oxidation activity against naphthol orange (NO) under sunlight with a rate constant of 57.5 × 10-3 min-1. The effects of pH, inorganic salts, dye concentrations, and catalytic dosage on NO degradation were studied. A probable mechanistic pathway for the degradation of NO in the presence of CZ1Z2-A was proposed, and studies of sacrificial agents indicated that superoxide radical anion (O2˙-) was the main accountable active species in NO degradation. In addition, CZ1Z2-A exhibited excellent recyclability potential, and XRD studies revealed that there was no change in the crystal structure before or after degradation, which indicated its high stability. The intriguing finding was that Ce- and Zr-doped ZnO did not exhibit satisfactory catalytic performance in the photo-oxidation of NO. However, the composite formula of CexZrxZnxO5 (x = 1) with a 1 : 1 : 1 ratio of metal ions offered excellent catalytic activity.
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Affiliation(s)
- Anik Sinha
- Department of Chemistry, West Bengal State University Barasat Kolkata 700126 West Bengal India
| | - Sanjay Kumar Sahu
- Nanomaterials and Crystal Design Laboratory, Department of Chemistry, Indira Gandhi National Tribal University Amarkantak 484887 Madhya Pradesh India +9107629269712 +919432512461
| | - Suman Biswas
- Department of Chemistry, West Bengal State University Barasat Kolkata 700126 West Bengal India
| | - Tanmay Kumar Ghorai
- Nanomaterials and Crystal Design Laboratory, Department of Chemistry, Indira Gandhi National Tribal University Amarkantak 484887 Madhya Pradesh India +9107629269712 +919432512461
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Sharma S, Sharma A, Chauhan NS, Tahir M, Kumari K, Mittal A, Kumar N. TiO2/Bi2O3/PANI nanocomposite materials for enhanced photocatalytic decontamination of organic pollutants. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gunasekaran R, Charles J. Synthesis, structural, morphological and optical analyses of new Prussian blue, ruthenium oxide and polyindole (PIn-PB-RuO2) nanocomposite. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03192-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Mosallaei H, Hadadzadeh H, Foelske A, Sauer M, Amiri Rudbari H, Blacque O. [Ru(tmphen) 3] 2[Fe(CN) 6] and [Ru(phen) 3][Fe(CN) 5(NO)] complexes and formation of a heterostructured RuO 2-Fe 2O 3 nanocomposite as an efficient alkaline HER and OER electrocatalyst. Dalton Trans 2022; 51:6314-6331. [PMID: 35383818 DOI: 10.1039/d2dt00398h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Water electrolysis is one of the most capable processes for supplying clean fuel. Herein, two novel ionic Ru(II)-Fe(II) complexes, [Ru(tmphen)3]2[Fe(CN)6] and [Ru(phen)3][Fe(CN)5(NO)], where tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline and phen = 1,10-phenanthroline, were synthesized and characterized by UV-Vis spectroscopy, elemental analysis, FT-IR, and single-crystal X-ray structural analysis. By thermally decomposing the [Ru(tmphen)3]2[Fe(CN)6] complex at 600 °C for 4 h, a heterostructured RuO2-Fe2O3 nanocomposite was fabricated through a facile one-pot treatment and then characterized by FT-IR, XRD, FT-Raman, UV-Vis (DRS), ICP-OES, FE-SEM, TEM, TGA/DTG, BET, and XPS analyses, which revealed the formation of highly crystalline RuO2-Fe2O3 nanoparticles with an average size of 8-12 nm. The prepared nanocomposite was an efficient heterostructured electrocatalyst for performing water-splitting redox reaction processes, including hydrogen and oxygen evolution reactions (HER and OER) in alkaline solutions. In this regard, RuO2 and Fe2O3 samples were also prepared through thermal decomposition of [Ru(tmphen)3](NO3)2 and K4[Fe(CN)6] precursors, respectively, as control experiments to compare their HER and OER electrocatalytic activity with that of the RuO2-Fe2O3 nanocomposite. Specifically, the RuO2-Fe2O3 nanocomposite exhibited significant electrocatalytic performance, generating 10 mA cm-2 current density at -148 and 292 mV overpotentials, and the Tafel slope results from fitting the LSV curves to the Tafel equation were -43 and 56.08 mV dec-1 for the HER and OER, respectively. Therefore, the heterostructured RuO2-Fe2O3 nanocomposite can be viewed as a bi-functional electrocatalyst for HER and OER because it exploits the synergistic effects of heterostructures and active sites at its interface.
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Affiliation(s)
- Hamta Mosallaei
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Hassan Hadadzadeh
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
| | - Annette Foelske
- Analytical Instrumentation Center, Technische Universität Wien, Lehargasse 6, 1060 Wien, Austria
| | - Markus Sauer
- Analytical Instrumentation Center, Technische Universität Wien, Lehargasse 6, 1060 Wien, Austria
| | - Hadi Amiri Rudbari
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, Iran
| | - Olivier Blacque
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland
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Shawky A, Alsheheri SZ, Alsaggaf WT, Al-Hajji L, Zaki Z. Promoted hexavalent chromium ion photoreduction over visible-light active RuO2/TiO2 heterojunctions prepared by solution process. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113906] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Malunga SM, Chaukura N, Mbiriri CI, Gwenzi W, Moyo M, Kuvarega AT. The Visible light photodegradation of methyl orange and Escherichia coli O157:H7 in wastewater. S AFR J SCI 2022. [DOI: 10.17159/sajs.2022/10938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Water pollution due to dyes and pathogens is problematic worldwide, and the disease burden is higher in low-income countries where water treatment facilities are usually inadequate. Thus the development of low-cost techniques for the removal of dyes and pathogens in aquatic systems is critical for safeguarding human and ecological health. In this work, we report the fabrication and use of a photocatalyst derived from waste from coal combustion in removing dyes and pathogens from wastewater. Higher TiO2 loading of the photocatalyst increased the removal efficiency for methyl orange (95.5%), and fluorine-doping improved the disinfection efficacy from 76% to 95% relative to unmodified material. Overall, the work effectively converted hazardous waste into a value-added product that has potential in point-of-use water treatment. Future research should focus on upscaling the technique, investigating the fate of the potential of the photocatalysts for multiple reuse, and the recovery of TiO2 in treated water.
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Affiliation(s)
- Sibongile M. Malunga
- Chemistry Department, Bindura University of Science Education, Bindura, Zimbabwe
| | - Nhamo Chaukura
- Department of Physical and Earth Sciences, Sol Plaatje University, Kimberley, South Africa
| | - Chiedza I. Mbiriri
- Department of Biological Sciences, Bindura University of Science Education, Bindura, Zimbabwe
| | - Willis Gwenzi
- Biosystems and Environmental Engineering Research Group, Department of Soil Science and Agricultural Engineering, University of Zimbabwe, Harare, Zimbabwe
| | - Mambo Moyo
- Department of Chemical Technology, Midlands State University, Gweru, Zimbabwe
| | - Alex T. Kuvarega
- Nanotechnology and Water Sustainability Research Unit, College of Engineering, Science and Technology, University of South Africa, Johannesburg, South Africa
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Morjène L, Aloulou F, Tasbihi M, Schwarze M, Schomäcker R, Seffen M. New composite material based on Kaolinite, cement, TiO 2 for efficient removal of phenol by photocatalysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:35991-36003. [PMID: 33686604 DOI: 10.1007/s11356-021-13150-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 02/22/2021] [Indexed: 06/12/2023]
Abstract
Photocatalysis is one of the most important process and was used to eliminate various organic pollutants as phenol in water. In this research study, a new composite containing Kaolinite, cement, and wood fibers modified by titanium oxide TiO2 was elaborated in order to be used in addition of building materials, as photocatalyst for the degradation of phenol. Different kinds and amounts of TiO2 (PC500, P90, and C-TiO2) were immobilized by a simple method inside the composite materials based. The matrix of the hybrid materials was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), N2 adsorption-desorption (BET), and scanning electron microscope (SEM). These investigations confirmed the dispersion of titania in the new composite materials. The FTIR result has shown that clay particles were successfully treated before their insertion in the composite, by the appearance of two peaks at 2921-2851 cm-1. The XRD results reveal the identification of crystalline phase of TiO2 as anatase. The photocatalytic activity of the composite materials was investigated towards degradation of phenol in aqueous solution under UV light irradiation (369 nm). It has been found that photocatalytic efficiency was significantly enhanced when TiO2 is added. The highest photocatalytic activity has been shown by 3% P90-comp of 41.65% in comparison with 3% PC500 and 3% C-TiO2 which are 29.88% and 22.64 %, respectively. It was shown that the experimental data of kinetic reaction are well fitted by first-order model.
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Affiliation(s)
- Latifa Morjène
- Laboratory of Energy and Materials (LABEM), High School of Sciences and Technology of Hammam Sousse, Sousse University-Tunisia, Hammam, 4011, Hammam Sousse, Tunisia
- Department of Environmental Technology: Chair of Environmental Process Engineering, Chemistry Department, University TU Berlin, Sekr. TC8 10623, Berlin, Germany
| | - Fadhel Aloulou
- Laboratory of Energy and Materials (LABEM), High School of Sciences and Technology of Hammam Sousse, Sousse University-Tunisia, Hammam, 4011, Hammam Sousse, Tunisia
| | - Minoo Tasbihi
- Department of Environmental Technology: Chair of Environmental Process Engineering, Chemistry Department, University TU Berlin, Sekr. TC8 10623, Berlin, Germany
| | - Michael Schwarze
- Department of Environmental Technology: Chair of Environmental Process Engineering, Chemistry Department, University TU Berlin, Sekr. TC8 10623, Berlin, Germany
| | - Reinhard Schomäcker
- Department of Environmental Technology: Chair of Environmental Process Engineering, Chemistry Department, University TU Berlin, Sekr. TC8 10623, Berlin, Germany
| | - Mongi Seffen
- Laboratory of Energy and Materials (LABEM), High School of Sciences and Technology of Hammam Sousse, Sousse University-Tunisia, Hammam, 4011, Hammam Sousse, Tunisia.
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Zhang Q, Yu L, Yang B, Xu C, Zhang W, Xu Q, Diao G. Magnetic Fe3O4@Ru-doped TiO2 nanocomposite as a recyclable photocatalyst for advanced photodegradation of methylene blue in simulated sunlight. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138609] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Diazonium Modification of Inorganic and Organic Fillers for the Design of Robust Composites: A Review. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01725-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
AbstractThis review focuses on fillers modified with diazonium salts and their use in composites. We reviewed scientific publications and presented information about such diazonium-modified fillers as boron nitride, carbon fillers, cellulose, clay, silica, titanium dioxide, and zeolite. The fillers were divided into two groups. The first group includes those that form covalent bonds with the polymer, while the second includes those that do not form them. This review indicates a tremendous impact of filler modification using diazonium salts on the properties of composites. The review presents examples of the impact of filler on such properties as thermal conductivity, thermal stability, and mechanical properties (e.g., interfacial shear strength, compressive strength, flexural strength). The presented review indicates the enormous potential of composites with diazonium-modified fillers in control drug release, antistatic coatings, electrode materials, photocatalysts, bone tissue engineering scaffolds, fuel cell applications, abrasive tools, and electromechanical strain sensor. We hope that this review will help both research groups and industry in choosing fillers for given types of polymers and obtaining composites with even better properties.
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Shoueir K, Wassel AR, Ahmed M, El-Naggar ME. Encapsulation of extremely stable polyaniline onto Bio-MOF: Photo-activated antimicrobial and depletion of ciprofloxacin from aqueous solutions. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112703] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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The Molecular and Macromolecular Level of Carbon Nanotube Modification Via Diazonium Chemistry: Emphasis on the 2010s Years. CHEMISTRY AFRICA 2020. [DOI: 10.1007/s42250-020-00144-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Morjène L, Tasbihi M, Schwarze M, Schomäcker R, Aloulou F, Seffen M. A composite of clay, cement, and wood as natural support material for the immobilization of commercial titania (P25, P90, PC500, C-TiO 2) towards photocatalytic phenol degradation. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:1882-1893. [PMID: 32666943 DOI: 10.2166/wst.2020.244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Different types of commercial titania (P25, P90, PC500, and C-TiO2) were immobilized as single or mixed photocatalyst onto the surface of a natural support material made of cement, clay, and wood fibers. The successful immobilization was studied by different techniques showing a composite material with the mechanical properties of the support material and the photocatalytic behavior of the immobilized titania. The supported photocatalyst showed high mechanical stability and was applied to the photocatalytic degradation of phenol as a model pollutant under UV light irradiation. As the most active photocatalytic material, a mixture PC500 and P90 (comp-PC500/P90) was identified with an apparent pseudo first-order kinetic rate constant (kapp) of 0.010 min-1 at a degradation efficiency of 100%. The catalyst was used several times and showed minor loss in activity during four runs due to degradation intermediates adsorbed to the surface, shown by a color change from white to yellow.
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Affiliation(s)
- L Morjène
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany E-mail: ; Laboratory of Energy and Materials, High School of Sciences and Technology of Hammam Sousse, University of Sousse, Rue Lamine Abassi 4011, Hammam Sousse, Tunisia
| | - M Tasbihi
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany E-mail:
| | - M Schwarze
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany E-mail:
| | - R Schomäcker
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany E-mail:
| | - F Aloulou
- Laboratory of Energy and Materials, High School of Sciences and Technology of Hammam Sousse, University of Sousse, Rue Lamine Abassi 4011, Hammam Sousse, Tunisia
| | - M Seffen
- Laboratory of Energy and Materials, High School of Sciences and Technology of Hammam Sousse, University of Sousse, Rue Lamine Abassi 4011, Hammam Sousse, Tunisia
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Wang Z, Srivastava V, Wang S, Sun H, Thangaraj SK, Jänis J, Sillanpää M. UVC-assisted photocatalytic degradation of carbamazepine by Nd-doped Sb2O3/TiO2 photocatalyst. J Colloid Interface Sci 2020; 562:461-469. [DOI: 10.1016/j.jcis.2019.11.094] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 11/18/2019] [Accepted: 11/23/2019] [Indexed: 01/06/2023]
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Stejskal J. Interaction of conducting polymers, polyaniline and polypyrrole, with organic dyes: polymer morphology control, dye adsorption and photocatalytic decomposition. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00982-9] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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