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El-Shamy OAA, Selim H, Elkholy AS, Kamal RS, Saleh NM, Abd El-Sattar NEA. Preparation of thiourea derivative incorporated Ag 3PO 4 core shell for enhancement of photocatalytic degradation performance of organic dye under visible radiation light. Sci Rep 2024; 14:12671. [PMID: 38830937 PMCID: PMC11148051 DOI: 10.1038/s41598-024-62608-9] [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: 12/14/2023] [Accepted: 05/20/2024] [Indexed: 06/05/2024] Open
Abstract
Photocatalysis is a promising technique to reduce hazardous organic pollutants using semiconductors under visible light. However, previous studies have been concerned with the behavior of silver phosphate (Ag3PO4) as n-type semiconductors, and the problem of their instability is still under investigation. Herein, 4,4'-(((oxalylbis(azanediyl)) bis(carbonothioyl)) bis(azanediyl)) dibenzoic acid is synthesized by green method and used to enhance the photocatalytic behavior for Ag3PO4. The incorporated Ag3PO4 core-shell is prepared and characterized via XRD, FT-IR, Raman, TEM and BET. Besides, the thermal stability of the prepared core shell was investigated via TGA and DSC measurements. The optical properties and the energy band gap are determined using photoluminescence and DRS measurements. The photodegradation of methylene blue in the presence of the synthesized Ag3PO4 core-shell under visible light is examined using UV/Vis measurements. The effect of initial dye concentration and contact time are studied. In addition, the kinetic behavior of the selected dye during the photodegradation process shows a pseudo-first order reaction with rate constant of 0.015 min-1 for ZAg. The reusability of the Ag3PO4 core shell is evaluated, and the efficiency changed from 96.76 to 94.02% after three cycles, indicating efficient photocatalytic behavior with excellent stability.
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Affiliation(s)
- Omnia A A El-Shamy
- Department of Analysis and Evaluation, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt.
| | - Hanaa Selim
- Department of Analysis and Evaluation, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt
| | - Ahmed S Elkholy
- Main Defense Chemical Laboratory (M.D.C.L.), Almaza, Cairo, Egypt
| | - Rasha S Kamal
- Department of Petroleum Applications, Egyptian Petroleum Research Institute, P.O. Box 11727, Nasr City, Cairo, Egypt
| | - Nashwa M Saleh
- Department of Chemistry, Faculty of Science (Girls), Al-Azhar University, Yousef Abbas Str., P.O. Box: 11754, Nasr City, Cairo, Egypt
| | - Nour E A Abd El-Sattar
- Department of Chemistry, Faculty of Science, Ain Shams University, Cairo, 11566, Egypt
- Basic & Medical Sciences Department, Faculty of Dentistry, Alryada University for Science & Technology, Sadat City, Egypt
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Satheesh D, Baskar L, Jayavelu Y, Dekshinamoorthy A, Sakthinathan VR, Daniel PJ, Vijayaraghavan S, Krishnan K, Rajendran R, Pachaiappan R, Manavalan K. Efficient electrochemical hydrogen evolution activity of nanostructured Ag 3PO 4/MoS 2 heterogeneous composite catalyst. CHEMOSPHERE 2024; 351:141220. [PMID: 38224749 DOI: 10.1016/j.chemosphere.2024.141220] [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: 09/21/2023] [Revised: 12/31/2023] [Accepted: 01/12/2024] [Indexed: 01/17/2024]
Abstract
Hydrogen (H2) generation by electrochemical water splitting is a key technique for sustainable energy applications. Two-dimensional (2D) transition-metal dichalcogenide (MoS2) and silver phosphate (Ag3PO4) possess excellent electrochemical hydrogen evolution reaction (HER) properties when they are combined together as a composite rather than individuals. Reports examining the HER activity by using Ag3PO4, especially, in combination with the 2D layered MoS2 are limited in literature. The weight fraction of MoS2 in Ag3PO4 is optimized for 1, 3, and 5 wt%. The Ag3PO4/1 wt % MoS2 combination exhibits enhanced HER activity with least overpotential of 235 mV among the other samples in the acidic medium. The synergistic effect of optimal nano-scale 2D layered MoS2 structure and Ag3PO4 is essential for creating higher electrochemical active surface area of 217 mF/cm2, and hence this leads to faster reaction kinetics in the HER. This work suggests the advantages of Ag3PO4/1 wt % MoS2 heterogeneous composite catalyst for electrochemical analysis and HER indicating lower resistivity and low Tafel slope value (179 mV/dec) among the prepared catalysts making it a promising candidate for its use in practical energy applications.
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Affiliation(s)
- Divyadharshini Satheesh
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India
| | - Leena Baskar
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India
| | - Yuvashree Jayavelu
- Department of Physics, National Institute of Technology, Warangal, Telangana, 506004, India
| | - Amuthan Dekshinamoorthy
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Vishwath Rishaban Sakthinathan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Paul Joseph Daniel
- Department of Physics, National Institute of Technology, Warangal, Telangana, 506004, India
| | - Saranyan Vijayaraghavan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Karthik Krishnan
- Corrosion and Materials Protection Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamilnadu, India
| | - Rathika Rajendran
- Department of Physics, St. Theresa's Arts & Science College for Women, Tharangambadi, Mayiladuthurai District, Tamilnadu, 609313, India
| | - Rekha Pachaiappan
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería Mecánica, Universidad de Tarapacá, Avda. General Velasquez 1775 , Arica, Chile
| | - Kovendhan Manavalan
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, 603203, Tamilnadu, India.
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Assafi A, El Hadj Ali YA, Almufarij RS, Hejji L, Raza N, Villarejo LP, Souhail B, Azzouz A, Abdelrahman EA. Ultrasound-assisted adsorption of organic dyes in real water samples using zirconium (IV)-based metal-organic frameworks UiO-66-NH 2 as an adsorbent. Heliyon 2023; 9:e22001. [PMID: 38027594 PMCID: PMC10679492 DOI: 10.1016/j.heliyon.2023.e22001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/27/2023] [Accepted: 11/01/2023] [Indexed: 12/01/2023] Open
Abstract
The utilization of dye adsorption through metal-organic frameworks represents an eco-friendly and highly effective approach in real water treatment. Here, ultrasound assisted adsorption approach was employed for the remediation of three dyes including methylene blue (MB), malachite green (MG), and congo red (CR) from real water samples using zirconium(IV)-based adsorbent (UiO-66-NH2). The adsorbent was characterized for structural, elemental, thermal and morphological features through XRD, XPS, FTIR, thermogravimetric analysis, SEM, BET , and Raman spectroscopy. The adsorption capacity of adsorbent to uptake the pollutants in aqueous solutions was investigated under different experimental conditions such as amount of UiO-66-NH2 at various contact durations, temperatures, pH levels, and initial dye loading amounts. The maximum removal of dyes under optimal conditions was found to be 938, 587, and 623 mg g-1 towardMB, MG, and CR, respectively. The adsorption of the studied dyes on the adsorbent surface was found to be a monolayer and endothermic process. The probable mechanism for the adsorption was chemisorption and follows pseudo-second-order kinetics. From the findings of regeneration studies, it was deduced that the adsorbent can be effectively used for three consecutive cycles without any momentous loss in its adsorption efficacy. Furthermore, UiO-66-NH2 with ultrasound-assisted adsorption might help to safeguard the environment and to develop new strategies for sustainability of natural resources.
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Affiliation(s)
- Abdeslam Assafi
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002, Tetouan, Morocco
| | - Youssef Aoulad El Hadj Ali
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002, Tetouan, Morocco
| | - Rasmiah S. Almufarij
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia
| | - Lamia Hejji
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002, Tetouan, Morocco
- Department of Chemical, Environmental, and Materials Engineering, Higher Polytechnic School of Linares, University of Jaén, Campus Científico-Tecnológico, Cinturón Sur s/n, 23700, Linares, Jaén, Spain
| | - Nadeem Raza
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Luis Pérez Villarejo
- Department of Chemical, Environmental, and Materials Engineering, Higher Polytechnic School of Linares, University of Jaén, Campus Científico-Tecnológico, Cinturón Sur s/n, 23700, Linares, Jaén, Spain
| | - Badredine Souhail
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002, Tetouan, Morocco
| | - Abdelmonaim Azzouz
- Department of Chemistry, Faculty of Science, University of Abdelmalek Essaadi, B.P. 2121, M'Hannech II, 93002, Tetouan, Morocco
| | - Ehab A. Abdelrahman
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
- Chemistry Department, Faculty of Science, Benha University, Benha, 13518, Egypt
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Khiar H, Janani FZ, Sadiq M, Mansouri S, Puga A, Barka N. Effect of indium (III) doping on Ag 3PO 4 catalyst stabilization and its visible light photocatalytic activity toward toxic dyes in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:100785-100798. [PMID: 37640975 DOI: 10.1007/s11356-023-29429-1] [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: 06/02/2023] [Accepted: 08/17/2023] [Indexed: 08/31/2023]
Abstract
Indium(III)-doped Ag3PO4 (In-AgP) catalysts at different weight percentages were elaborated by co-precipitation and subjected to XRD, SEM, UV-vis DRS, and FTIR characterization. The prepared catalysts were of spherical morphology and their diameters depends on doping dosage. The whole materials crystallize in a centered cubic system with a slight dissimilation in the positions of the characteristic peaks as a function of indium dosage. The photocatalytic performance of the catalysts under visible light was investigated in the photocatalytic degradation of anionic dye (methyl orange (MO)) and cationic dye (auramine O (AO)) in moderate acid, neutral, and basic pH conditions. Results showed more selectivity to MO than AO. Furthermore, indium-doped samples are more active in the acidic medium than the pure Ag3PO4 (AgP), and 10%In-AgP catalyst presents the highest activity. The degradation efficiency reached 99 % in 60 min for MO and in 180 min for AO. In addition, a high recycling stability was achieved and the catalyst retains its degradation capacity above 99 % after five cycles.
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Affiliation(s)
- Habiba Khiar
- Sultan Moulay Slimane University of Beni Mellal, Multidisciplinary Research and Innovation Laboratory, FP Khouribga, 145, 2500, Khouribga, BP, Morocco
| | - Fatima Zahra Janani
- Sultan Moulay Slimane University of Beni Mellal, Multidisciplinary Research and Innovation Laboratory, FP Khouribga, 145, 2500, Khouribga, BP, Morocco
| | - M'hamed Sadiq
- Sultan Moulay Slimane University of Beni Mellal, Multidisciplinary Research and Innovation Laboratory, FP Khouribga, 145, 2500, Khouribga, BP, Morocco
| | - Said Mansouri
- Materials Science Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660-Hay Moulay Rachid, 43150, Benguerir, Morocco
| | - Alberto Puga
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Avinguda dels Països Catalans, 26, 43007, Tarragona, Spain
| | - Noureddine Barka
- Sultan Moulay Slimane University of Beni Mellal, Multidisciplinary Research and Innovation Laboratory, FP Khouribga, 145, 2500, Khouribga, BP, Morocco.
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Superior Photocatalytic Activity of BaO@Ag3PO4 Nanocomposite for Dual Function Degradation of Methylene Blue and Hydrogen Production under Visible Light Irradiation. Catalysts 2023. [DOI: 10.3390/catal13020363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
The current work focuses on the photo degradation of organic pollutants, particularly methylene blue (MB) dye, and the production of hydrogen as green energy using a composite of silver phosphate Ag3PO4 (AP) and barium oxide/silver phosphate BaO@Ag3PO4 (APB) as a photocatalyst. This composite was successfully synthesized using a chemical co-precipitation approach. The physicochemical properties of the obtained samples were investigated using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), ultraviolet–visible diffuse reflectance spectroscopy (UV–Vis/DRS), and photoluminescence (PL) spectrophotometry. From XRD, the average crystallite sizes of AP and APB are 39.1 and 46 nm, respectively, with a homogeneous morphology detected by SEM. UV and PL experiments showed that the compound is active under visible light, with an improvement in the lifetimes of the electrons and the holes in the presence of BaO with Ag3PO4. The as-synthesized APB photocatalyst sample showed a remarkably high degradation efficiency of MB (20 ppm, 50 mL) of around 94%, with a hydrogen production yield of around 7538 μmol/(h·g), after 120 min of illumination, which is greater than the degradation efficiency of the AP photocatalyst sample, which was about 88%. The high photodegradation efficiency was attributed to the electronic promotion effect of the BaO particles. The APB composite demonstrated an increased photocatalytic performance in effectively degrading an organic dye (MB) with no secondary pollutants when exposed to visible light irradiation.
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Islam T, Repon MR, Islam T, Sarwar Z, Rahman MM. Impact of textile dyes on health and ecosystem: a review of structure, causes, and potential solutions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:9207-9242. [PMID: 36459315 DOI: 10.1007/s11356-022-24398-3] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
The rapid growth of population and industrialization have intensified the problem of water pollution globally. To meet the challenge of industrialization, the use of synthetic dyes in the textile industry, dyeing and printing industry, tannery and paint industry, paper and pulp industry, cosmetic and food industry, dye manufacturing industry, and pharmaceutical industry has increased exponentially. Among these industries, the textile industry is prominent for the water pollution due to the hefty consumption of water and discharge of coloring materials in the effluent. The discharge of this effluent into the aquatic reservoir affects its biochemical oxygen demand (BOD), chemical oxygen demand (COD), total dissolved solids (TDS), total suspended solids (TSS), and pH. The release of the effluents without any remedial treatment will generate a gigantic peril to the aquatic ecosystem and human health. The ecological-friendly treatment of the dye-containing wastewater to minimize the detrimental effect on human health and the environment is the need of the hour. The purpose of this review is to evaluate the catastrophic effects of textile dyes on human health and the environment. This review provides a comprehensive insight into the dyes and chemicals used in the textile industry, focusing on the typical treatment processes for their removal from industrial wastewaters, including chemical, biological, physical, and hybrid techniques.
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Affiliation(s)
- Tarekul Islam
- Department of Textile Engineering, Mawlana Bhashani Science and Technology University, Tangail, 1902, Bangladesh
- ZR Research Institute for Advanced Materials, Sherpur, 2100, Bangladesh
| | - Md Reazuddin Repon
- ZR Research Institute for Advanced Materials, Sherpur, 2100, Bangladesh.
- Department of Textile Engineering, Khwaja Yunus Ali University, Sirajgang, 6751, Bangladesh.
- Department of Production Engineering, Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentų 56, 51424, Kaunas, Lithuania.
| | - Tarikul Islam
- ZR Research Institute for Advanced Materials, Sherpur, 2100, Bangladesh
- Department of Textile Engineering, Jashore University of Science and Technology, Jashore, 7408, Bangladesh
| | - Zahid Sarwar
- School of Engineering and Technology, National Textile University, Faisalabad, Pakistan
| | - Mohammed M Rahman
- Center of Excellence for Advanced Materials Research (CEAMR) &, Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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Multipollutant Abatement through Visible Photocatalytic System. Catalysts 2022. [DOI: 10.3390/catal13010065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Water pollution damages the aquatic environment due to the presence of organic contaminants, which in turn is distressing to the ecosystem. Photocatalytic activity is a greener and promising method to degrade these organic contaminants. In this research, we present the degradation of diverse water pollutants through zinc/iron oxide nanoparticles serving as photocatalysts. The photocatalyst was studied for its efficiency to photodegrade congo red, brilliant green and para nitro phenol. Moreover, it also presented an antibacterial activity against the bacterium E. coli. Photocatalyst was characterized via X-ray diffraction, scanning electron microscopy-energy dispersive X-ray spectroscopy, and fourier-transform infrared spectroscopy. Tauc plot was used to measure the optical band gap (1.84 eV). The effect of various parameters such as catalyst dose, contact time, dye dose/concentration and pH were also investigated to determine the optimum point of maximum degradation through response surface methodology. A face-centered composite design was used, and a quadratic model was followed by congo red, brilliant green dyes and para nitrophenol. The maximum photodegradation efficiencies were 99%, 94.3%, and 78.5% for congo red, brilliant green and phenol, respectively. Quantum yield for congo red, brilliant green and para-nitrophenol were 9.62 × 10−8, 1.17 × 10−7 and 4.11 × 10−7 molecules/photons, while the reaction rates were 27.1 µmolg−1h−1, 29.61 µmolg−1h−1 and 231 µmolg−1h−1, respectively.
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Khalaf MM, Gouda M, Shalabi K, Shaaban S, Abd El-Lateef HM. Structural and Adsorptive Characteristics of 2D Multilayer Nanoflakes of NiCo Phosphates for Chromium(VI) Removal: Experimental and Monte Carlo Simulations. ACS OMEGA 2022; 7:10738-10750. [PMID: 35382323 PMCID: PMC8973056 DOI: 10.1021/acsomega.2c00529] [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: 01/26/2022] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Metal phosphates are efficient adsorbent materials for heavy elements present in industrial effluents because of their promising properties. Hexachromium ions are among the most dangerous contaminants owing to their harmful properties and non-degradability. Accordingly, the present work offers a simplified study of the preparation of bimetallic phosphate materials from nickel cobalt phosphate (NiCo-Ph) based on the sol-gel method in an equimolar ratio. Characterization of the bulk, crystal phase, texture profile, and nanosize of NiCo-Ph was carried out using various techniques such as Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, nitrogen adsorption-desorption isotherm measurements, field emission scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. In this regard, the adsorption performance of NiCo-Ph was exemplified through six batch experiments, elucidating the impacts of the sorbent dose, initial concentration of pollutants, sorption time, temperature, pH, and shaking rate. According to UV/vis spectrophotometry measurements and their related calculations of NiCo-Ph, the maximum removal efficiency (RE %) of 92% and adsorption capacity (q m) of 37 mg/g were achieved at pH = 6, a dose of 5.0 g/L, 100 mg/L of [Cr(VI)], 300 rpm, adsorption time of 60 min, and 298 K. Monte Carlo simulations were also carried out to correlate the experimental data with theoretical calculations that provided a higher negative value (-911.62 kcal mol-1) for the adsorption energy of Cr(VI) in acidic medium. The adsorbent NiCo-Ph prepared by this direct method is therefore recommended for the quantification of Cr(VI) under slightly acidic solutions and at room temperature, which can maintain its efficiency even up to six cycles.
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Affiliation(s)
- Mai M. Khalaf
- Department
of Chemistry, College of Science, King Faisal
University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Mohamed Gouda
- Department
of Chemistry, College of Science, King Faisal
University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
| | - Kamal Shalabi
- Department
of Chemistry, Faculty of Science, Mansoura
University, Mansoura 35516, Egypt
| | - Saad Shaaban
- Department
of Chemistry, College of Science, King Faisal
University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Mansoura
University, Mansoura 35516, Egypt
| | - Hany M. Abd El-Lateef
- Department
of Chemistry, College of Science, King Faisal
University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
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Yu C, Chen X, Li N, Zhang Y, Li S, Chen J, Yao L, Lin K, Lai Y, Deng X. Ag 3PO 4-based photocatalysts and their application in organic-polluted wastewater treatment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:18423-18439. [PMID: 35038092 DOI: 10.1007/s11356-022-18591-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Semiconductor photocatalysis technology has shown great potential in the field of organic pollutant removal, as it can use clean and pollution-free solar energy as driving force. The discovery of silver phosphate (Ag3PO4) is a major breakthrough in the field of visible light responsive semiconductor photocatalysis due to its robust capacity to absorb visible light < 520 nm. Furthermore, the holes produced in Ag3PO4 under light excitation possess a strong oxidation ability. However, the strong oxidation activity of Ag3PO4 is only achieved in the presence of electron sacrifice agents. Otherwise, photocorrosion would greatly reduce the reuse efficiency of Ag3PO4. This review thus focuses on the structural characteristics and preparation methods of Ag3PO4. Particularly, the recent advances in noble metal deposition, ion doping, and semiconductor coupling, as well as methods of magnetic composite modification for the improvement of catalytic activity and recycling efficiency of Ag3PO4-based catalysts, were also discussed, and all of these measures could enhance the catalytic performance of Ag3PO4 toward organic pollutants degradation. Additionally, some potential modification methods for Ag3PO4 were also proposed. This review thus provides insights into the advantages and disadvantages of the application of Ag3PO4 in the field of photocatalysis, clarifies the photocorrosion essence of Ag3PO4, and reveals the means to improve photocatalytic activity and stability of Ag3PO4. Furthermore, it provides a theoretical and methodological basis for studying Ag3PO4-based photocatalyst and also compiles valuable information regarding the photocatalytic treatment of organic polluted wastewater.
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Affiliation(s)
- Chunmu Yu
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Xiaojuan Chen
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China.
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Guangzhou, 510640, China.
| | - Ning Li
- CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Guangzhou, 510650, China.
| | - Yue Zhang
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Sailin Li
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Jieming Chen
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Liang Yao
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Kaichun Lin
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Yiqi Lai
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
| | - Xinru Deng
- School of Environmental and Chemical Engineering, Foshan University, Foshan, 528000, China
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10
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Abbas N, Rubab N, Kim KH, Chaudhry R, Manzoor S, Raza N, Tariq M, Lee J, Manzoor S. The photocatalytic performance and structural characteristics of nickel cobalt ferrite nanocomposites after doping with bismuth. J Colloid Interface Sci 2021; 594:902-913. [PMID: 33794411 DOI: 10.1016/j.jcis.2021.03.094] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/14/2021] [Accepted: 03/15/2021] [Indexed: 01/20/2023]
Abstract
Here, a novel bismuth-doped nickel-cobalt ferrite (Ni0.5Co0.5Bi0.1Fe1.9O4) was synthesized using a sol-gel auto-combustion approach. The impact of bismuth substitution on the nickel-cobalt ferrite structural characteristics was investigated relative to the nickel-cobalt ferrite without bismuth substitution (Ni0.5Co0.5Fe2O4) based on diverse technical options (e.g., scanning electron microscopy-equipped with an energy dispersive X-ray spectrometer, X-ray diffraction, physisorption, and Fourier-transform infrared spectroscopy). Bismuth doping increased the surface area without affecting pore size. The X-ray diffraction pattern confirmed a nano-ferrite cubic spinel structure of the catalyst. Photodegradation of Congo red (CR) was tested using these nickel-cobalt ferrite catalysts under visible light across varying reaction parameters (e.g., pH, catalyst loading, dye concentration, and reaction time). The photo-degradation efficiency for CR in aqueous medium was the highest (98%) at pH 3 with 0.2 g catalyst loading in 100 mL under visible irradiation to reinforce the role of nanostructures as a potent photocatalyst (QY = 2.79 × 10-7 molecule photon-1). The kinetic reaction rate of Bi-doped spinel ferrite (3.5 µmol g-1 h-1) was1.25 times higher than those undoped materials. This study experimentally proved that the bismuth-doped nickel-cobalt ferrite photocatalyst is an effective option for removing industrial dyes.
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Affiliation(s)
- Naseem Abbas
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Nida Rubab
- Department of Physics, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
| | - Rabbania Chaudhry
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Suryyia Manzoor
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Nadeem Raza
- Department of Chemistry, Emerson University Multan, Pakistan.
| | - Muhammad Tariq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan 60800, Pakistan
| | - Jechan Lee
- Department of Environmental and Safety Engineering& Department of Energy Systems Research, Ajou University, Suwon 16499, Republic of Korea
| | - Shamaila Manzoor
- Department of Physics and Astronomy, University of Florence, Sesto Florentino, Italy.
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Raza N, Raza W, Gul H, Kim KH. ZnO-ZnTe hierarchical superstructures as solar-light-activated photocatalysts for azo dye removal. ENVIRONMENTAL RESEARCH 2021; 194:110499. [PMID: 33227248 DOI: 10.1016/j.envres.2020.110499] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 06/11/2023]
Abstract
The excessive amount of textile effluents disposed into the water streams is a common source of contamination of the hydrosphere. To efficiently remove pollutants in water bodies, there is growing demand for highly efficient, cost effective, and green remediation techniques. In line with such demand, a heterostructured photocatalyst (ZnO-ZnTe) has been prepared through the assembly of zinc oxide (ZnO) and zinc telluride (ZnTe). A synergistic interaction between surface adsorption and photocatalysis was explored for the removal of azo dye using a hierarchical superstructure under solar-light irradiation. Methylene blue (MB) was bleached by about 91% under visible irradiation for 2 h to support the role of the prepared heterostructures as effective photocatalysts (QY is 3.16 × 10-7 molecules/photon). Moreover, the kinetic reaction rate of ZnO-ZnTe superstructures was 19.0 μmol g-1 h-1, which was 1.54 and 1.97 times higher than those of pristine ZnO and ZnTe, respectively. These results may be ascribed to the presence of a common cation that may have helped in the diffusion of photogenerated electrons between ZnO and ZnTe, while efficiently suppressing the recombination frequency of photogenerated electrons and holes.
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Affiliation(s)
- Nadeem Raza
- Govt. Emerson College, Affiliated with Bahauddin Zakariya University, Multan, 60800, Pakistan.
| | - Waseem Raza
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, PR China
| | - Hajera Gul
- National Center of Excellence in Physical Chemistry, University of Peshawar, 25120, Peshawar, Pakistan
| | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul, 04763, Republic of Korea.
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Agbe H, Raza N, Dodoo-Arhin D, Kumar RV, Kim KH. A simple sensing of hazardous photo-induced superoxide anion radicals using a molecular probe in ZnO-Nanoparticles aqueous medium. ENVIRONMENTAL RESEARCH 2019; 176:108424. [PMID: 31229777 DOI: 10.1016/j.envres.2019.03.062] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 03/04/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
The generation of reactive oxygen species (ROS) during the photolysis of sunscreens and sun blockers poses consumer safety concerns while necessitating proper identification and quantitation of ROS species. Here, a colorimetric sensing approach has been developed based on a molecular probe (2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2-H-tetrazolium-5-carboxanilide (XTT) tetrazolium salt) to quantitatively measure the photo-induced superoxide anion radicals (O2.) generated from the photocatalysis of zinc oxide nanoparticles (ZnO-NPs) in aqueous solutions. Note that superoxide anion radicals are assumed to be the main reactive oxygen species (ROS) generated from such photocatalysis. The characterisation of ZnO-NPs before and after irradiation showed average particle sizes of 616.5 and 295.3 nm and ζ-potential values of 0 and -24.4 mV, respectively. It is hoped that this proposed protocol can be further developed to efficiently detect other ROS present in inorganic sun blockers and to optimize the utility of various sunscreen formulations.
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Affiliation(s)
- Henry Agbe
- Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK
| | - Nadeem Raza
- Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK; Govt. Emerson College Affiliated with Bahauddin Zakariya University Multan, Pakistan.
| | - David Dodoo-Arhin
- Department of Materials Science & Engineering, University of Ghana, P. O. Box LG 77, Legon-Accra, Ghana; Institute of Applied Science and Technology, University of Ghana, P. O. Box LG 25, Legon-Accra, Ghana
| | - R Vasant Kumar
- Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, UK
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, Seoul, 04763, South Korea.
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Popkov V, Tolstoy V, Nevedomskiy V. Peroxide route to the synthesis of ultrafine CeO 2-Fe 2O 3 nanocomposite via successive ionic layer deposition. Heliyon 2019; 5:e01443. [PMID: 30976704 PMCID: PMC6441835 DOI: 10.1016/j.heliyon.2019.e01443] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/04/2019] [Accepted: 03/25/2019] [Indexed: 02/06/2023] Open
Abstract
An ultrafine α-CeO2-α-Fe2O3 nanocomposite was prepared from the ultradispersed nanoparticles of cerium (IV) and iron (III) amorphous hydroxides heat-treated at 600 °С and 900 °С in the air. The initial composites were obtained by the successive ionic layer deposition (SILD) method. According to scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and powder X-ray diffraction (PXRD), the cerium/iron ratio in the synthesized nanocomposite is close to 1:2, and the α-CeO2 and α-Fe2O3 nanocrystals are isometrically shaped and have an average size of 4 ± 1 and 7 ± 1 nm (600 °С) and 24 ± 2 and 35 ± 3 nm (900 °С), respectively. Transmission electron microscopy (TEM) and selected area electron diffraction (SAED) have shown that nanocrystals are evenly distributed in the composite volume and are spatially conjugated. The formation mechanisms of both initial amorphous composites of cerium (IV) and iron (III) hydroxides and of α-CeO2 and α-Fe2O3 nanocrystals were established. It was shown that synthesis of the initial hydroxide composite using the SILD method proceeds via the formation of amorphous cerium hydroxo-peroxide (CeO(OOH)2). As a result of the study, a schematic mechanism for the formation of a composite based on ultrafine nanocrystals of cerium (IV) and iron (III) oxides has been proposed.
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Affiliation(s)
- V.I. Popkov
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii Prospect, Petergof, St. Petersburg, 198504, Russian Federation
- Ioffe Institute, 26 Politekhnicheskaya Street, St. Petersburg, 194021, Russian Federation
- Saint-Petersburg State Institute of Technology, 26 Moskovsky Prospect, St. Petersburg, 190013, Russian Federation
| | - V.P. Tolstoy
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskii Prospect, Petergof, St. Petersburg, 198504, Russian Federation
| | - V.N. Nevedomskiy
- Ioffe Institute, 26 Politekhnicheskaya Street, St. Petersburg, 194021, Russian Federation
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