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Efficiency and Energy Demand in Polishing Treatment of Wastewater Treatment Plants Effluents: Photoelectrocatalysis vs. Photocatalysis and Photolysis. WATER 2021. [DOI: 10.3390/w13060821] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Photoelectrocatalysis (PEC), photolysis (PL), and photocatalysis (PC) were applied to increase the biodegradability of wastewaters effluents sampled from a plant collecting both municipal wastewaters and aqueous waste. In PEC, the catalyst was a porous TiO2 photoanode obtained by plasma electrolytic oxidation and electrically polarized during operation. In PC a dispersion of TiO2 powders was used. The same irradiation shielding, and similar catalyst surface areas were set for PC and PEC, allowing a straightforward evaluation of the catalytic effect of the electrical polarization of TiO2 during operation. Results showed that the chemical oxygen demand (COD) and color removal rates follow the order: PEC > PL and PEC > PC. The specific biodegradability rate (SBR) increased following the same order, the PEC process allowing SBR values more than twice higher than PL and PC. The operating costs were calculated based on the electrical energy per order of COD, color, and SBR values, demonstrating that at the laboratory scale the energy demand of PEC is significantly lower than the other two tested processes.
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Aysan Rahimpour-Javid, Mohammad A. Behnajady. Artificial Neural Network Modelling of Photocatalytic Degradation of Diclofenac as a Pharmaceutical Contaminant. J WATER CHEM TECHNO+ 2020. [DOI: 10.3103/s1063455x20040128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Hassani A, Faraji M, Eghbali P. Facile fabrication of mpg-C3N4/Ag/ZnO nanowires/Zn photocatalyst plates for photodegradation of dye pollutant. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112665] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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4
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Ni-Doped Titanium Dioxide Films Obtained by Plasma Electrolytic Oxidation in Refrigerated Electrolytes. SURFACES 2020. [DOI: 10.3390/surfaces3020013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Porous crystalline Ni-doped TiO2 films were produced using DC plasma electrolytic oxidation in refrigerated H2SO4 aqueous solutions containing NiSO4. The crystalline phase structure consisted of a mixture of anatase and rutile, ranging from ~30 to ~80 wt % rutile. The oxide films obtained at low NiSO4 concentration showed the highest photocurrent values under monochromatic irradiation in the UV-vis range, outperforming pure TiO2. By increasing NiSO4 concentration above a threshold value, the photoelectrochemical activity of the films decreased below that of undoped TiO2. Similar results were obtained using cyclic voltammetry upon polychromatic UV-vis irradiation. Glow discharge optical emission spectrometry (GD-OES) analysis evidenced a sulfur signal peaking at the TiO2/Ti interface. XPS spectra revealed that oxidized Ni2+, S4+ and S6+ ions were included in the oxide films. In agreement with photocurrent measurements, photoluminescence (PL) spectra confirmed that less intense PL emission, i.e., a lower electron-hole recombination rate, was observed for Ni-doped samples, though overdoping was detrimental.
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Chen X, Yu C, Zhu R, Li N, Chen J, Lin Q, Xu S, Chen X, Wang H. Photocatalytic performance and mechanism of Z-Scheme CuBi 2O 4/Ag 3PO 4 in the degradation of diclofenac sodium under visible light irradiation: Effects of pH, H 2O 2, and S 2O 82. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 711:134643. [PMID: 32000318 DOI: 10.1016/j.scitotenv.2019.134643] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 09/11/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
Highly efficient visible-light-responsive Z-Scheme CuBi2O4/Ag3PO4 photocatalysts were prepared by a hydrothermal synthesis and in-situ deposition method and characterized comprehensively. Under visible-light irradiation, the photocatalytic performance of CuBi2O4/Ag3PO4 in the degradation of diclofenac sodium (DS) in aqueous solutions was studied under different conditions such as different catalyst composition, solution pH, and concentration of S2O82- or H2O2, and the response surface methodology (RSM) was used to analyze the interaction effect of the parameters. The optimal activity of CuBi2O4/Ag3PO4 was achieved at the mass ratio of 3:7 and pH of 4.42. Moreover, the introduced S2O82- could significantly enhance the catalytic activity of CuBi2O4/Ag3PO4; when 1 mM S2O82- was added to the catalytic system, 10 mg/L of DS could be completely degraded within 60 min, but the structure of CuBi2O4/Ag3PO4 was severely destroyed. While when H2O2 was introduced into the system, both the activity and stability of CuBi2O4/Ag3PO4 were improved significantly. Finally, the photodegradation pathway of DS is proposed and the photocatalytic mechanism of CuBi2O4/Ag3PO4 under different conditions is explained. CuBi2O4/Ag3PO4 and CuBi2O4/Ag3PO4 (S2O82-) photocatalytic systems follow the Z-Scheme theory, and Ag0 formed on the surface of catalyst serves as the recombination center for the photogenerated e- from the conduction band (CB) of Ag3PO4 and h+ from the valence band (VB) of CuBi2O4; meanwhile, the catalytic degradation of DS by CuBi2O4/Ag3PO4 in the presence of H2O2 follows the heterojunction energy band theory.
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Affiliation(s)
- Xiaojuan Chen
- College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China; CAS Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Chunmu Yu
- College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
| | - Runliang Zhu
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China; Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Guangzhou 510640, China.
| | - Ning Li
- CAS Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510650, China.
| | - Jieming Chen
- College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China; College of Transportation and Civil Architecture, Foshan University, Foshan 528225, China
| | - Qiujuan Lin
- College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
| | - Song Xu
- College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
| | - Xin Chen
- College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
| | - Hailong Wang
- College of Environmental and Chemical Engineering, Foshan University, Foshan 528000, China
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Abstract
In this study, we report an investigation of the photoelectrochemical activity of TiO2 films formed by DC plasma electrolytic oxidation (PEO) at a variable potential in a sulfuric acid electrolyte at 0 and 25 °C. The surface morphology was mainly determined by the oxide-forming potential. X-Ray Diffraction and Raman analyses showed that the relative amount of the anatase and rutile phases varied from 100% anatase at low potential (110–130 V) to 100% rutile at high potential (180–200 V), while mixed-phase oxide films formed at intermediate potential. Correspondingly, the band gap of the TiO2 films decreased from about 3.20 eV (pure anatase) to 2.94 eV (pure rutile) and was red-shifted about 0.1 eV by reducing the electrolyte temperature from 25 °C to 0 °C. Glow-Discharge Optical Emission Spectroscopy (GD-OES) and X-ray Photoelectron Spectroscopy (XPS) analyses evidenced S-containing species located preferentially close to the TiO2/Ti interface. The photoelectrochemical activity was assessed by measuring the incident photon-to-current efficiency (IPCE) under Ultraviolet C (UV-C) irradiation, which showed a non-gaussian normal trend as a function of the PEO cell potential, with maximum values exceeding 80%. Photoelectrocatalytic activity was assessed by decolorization of model solutions containing methylene blue. Photoanodes having higher IPCE values showed faster decolorization kinetics.
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Degradation of Carbamazepine by Photo(electro)catalysis on Nanostructured TiO2 Meshes: Transformation Products and Reaction Pathways. Catalysts 2020. [DOI: 10.3390/catal10020169] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Carbamazepine (CBZ) is a pharmaceutical compound recalcitrant to conventional wastewater treatment plants and widely detected in wastewater bodies. In the present study, advanced oxidation processes for carbamazepine removal are investigated, with particular regard to the degradation pathways of carbamazepine by photoelectrocatalysis and conventional photocatalysis. Photoelectrocatalysis was carried out onto TiO2 meshes obtained by Plasma Electrolytic Oxidation, a well-known technique in the field of industrial surface treatments, in view of an easy scale-up of the process. By photoelectrocatalysis, 99% of carbamazepine was removed in 55 min while only 65% removal was achieved by photolysis. The investigation of the transformation products (TPs) was carried out by means of UPLC-QTOF/MS/MS. Several new TPs were identified and accordingly reaction pathways were proposed. Above 80 min the transformation products disappear, probably forming organic acids of low-molecular weight as final degradation products. The results demonstrated that photoelectrocatalysis onto TiO2 meshes obtained by plasma electrolytic oxidation is a useful alternative to common advanced oxidation processes as wastewater tertiary treatment aimed at removing compounds of emerging concern.
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Eskandarloo H, Enayati M, Abdolmaleki MK, Arshadi M, Abbaspourrad A. Selective Electrochemical Capture and Release of Heparin Based on Amine-Functionalized Carbon/Titanium Dioxide Nanotube Arrays. ACS APPLIED BIO MATERIALS 2019; 2:2685-2697. [PMID: 35030723 DOI: 10.1021/acsabm.9b00400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heparin (HEP) is a sulfated glycosaminoglycan that is a clinical anticoagulant agent. Commercially derived from porcine intestinal mucosa, HEP is challenging to separate from this complex biological mixture for additional purification. This study aimed to raise the purity of isolated HEP using electrochemical potential to increase its selective capture and release. We demonstrate an electrochemical platform featuring an anode composed of amine-functionalized carbon/titanium dioxide nanotube arrays on titanium foil (Ti/C-TNTAs-NH2) and a cathode made of expanded graphite. Our results show that Ti and Ti/C-TNTAs control plates do not adsorb HEP, even while applying an external potential to the cell. However, when the Ti/C-TNTAs electrode is modified by 3 aminopropyltriethoxysilane, the terminal NH2 groups provide a high density of positive charges that serve as binding sites, enabling the adsorption of HEP. This attraction is further strengthened by applying an external potential to the anode. Subsequent release of the HEP molecules and regeneration of the Ti/C-TNTAs-NH2 electrode are easily accomplished by applying an anodic potential to the plate, as well as by increasing the concentration of NaCl in solution. This electrochemical system demonstrates the good selectivity of HEP, even within a mixture of other probable interfering species (e.g., bovine serum albumin and chondroitin sulfate). Additionally, it maintains 90.11% of its initial electrosorption efficiency after ten repeated HEP adsorption/desorption cycles, indicating this system's promising stability and reusability for HEP purification.
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Affiliation(s)
- Hamed Eskandarloo
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, New York 14853, United States
| | - Mojtaba Enayati
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, New York 14853, United States
| | - Mahmood Karimi Abdolmaleki
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, New York 14853, United States
| | - Mohammad Arshadi
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, New York 14853, United States
| | - Alireza Abbaspourrad
- Department of Food Science, College of Agriculture & Life Sciences, Cornell University, 243 Stocking Hall, Ithaca, New York 14853, United States
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9
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Qiu L, Cui Y, Tan X, Zheng S, Zhang H, Xu J, Wang Q. Construction of Ag3PO4/Ag4P2O7 nanospheres sensitized hierarchical titanium dioxide nanotube mesh for photoelectrocatalytic degradation of methylene blue. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2019.01.067] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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10
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Collivignarelli MC, Abbà A, Carnevale Miino M, Damiani S. Treatments for color removal from wastewater: State of the art. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 236:727-745. [PMID: 30772730 DOI: 10.1016/j.jenvman.2018.11.094] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 10/22/2018] [Accepted: 11/21/2018] [Indexed: 05/07/2023]
Abstract
It is evident from many recent papers that release of colored wastewater into the environment is source of pollution and this is a problem that particularly affect textile, dyeing and food industries. The review: (i) presents an analysis of various mechanisms involved in the different processes for color removal; (ii) describes conveniences and disadvantages that may exist in adopting one type of treatment in spite of another; (iii) reports the results of approximately 180 experimental tests. Both examples of treatments already widely applied to the real scale and still in the experimental phase are reported. This work focuses on different types of chemical/physical, chemical, electrochemical and biological processes applied in the field of color removal from industrial wastewater. Common chemical/physical treatments such as coagulation/flocculation, adsorption and membrane filtration as well as chemical-type processes are discussed, both those that exploit the traditional oxidizing chemical agents such as Ozone, H2O2 and reactive based on chlorine and those based on the principle of advanced chemical oxidation. In particular, both Hydroxyl radical based Advanced Oxidation Processes (AOPs) and Sulfate radical based AOPs are reported. The most commonly used Electrochemical processes for the removal of color are also presented as well as biological treatments. Based on more than 200 papers, this review provides important information on the use, effectiveness, advantages and downsides of the various treatments aimed at removing the color from the wastewater with a look at the technologies still under development.
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Affiliation(s)
| | - Alessandro Abbà
- Department of Civil, Environmental, Architectural Engineering and Mathematics, University of Brescia, via Branze 43, 25123, Brescia, Italy.
| | - Marco Carnevale Miino
- Department of Civil Engineering and Architecture, University of Pavia, via Ferrata 1, 27100, Pavia, Italy.
| | - Silvestro Damiani
- Department of Civil Engineering and Architecture, University of Pavia, via Ferrata 1, 27100, Pavia, Italy.
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11
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Comparative Study of Four TiO2-Based Photocatalysts to Degrade 2,4-D in a Semi-Passive System. WATER 2019. [DOI: 10.3390/w11030621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this study, the relative efficiency of four forms of supported titanium dioxide (TiO2) as a photocatalyst to degrade 2,4-dichlorophenoxyacetic acid (2,4-D) in Killex®, a commercially available herbicide was studied. Coated glass spheres, anodized plate, anodized mesh, and electro-photocatalysis using the anodized mesh were evaluated under an ultraviolet – light-emitting diode (UV-LED) light source at λ = 365 nm in a semi-passive mode. Energy consumption of the system was used to compare the efficiency of the photocatalysts. The results showed both photospheres and mesh consumed approximately 80 J/cm3 energy followed by electro-photocatalysis (112.2 J/cm3), and the anodized plate (114.5 J/cm3). Although electro-photocatalysis showed the fastest degradation rate (K = 5.04 mg L−1 h−1), its energy consumption was at the same level as the anodized plate with a lower degradation rate constant of 3.07 mg L−1 h−1. The results demonstrated that three-dimensional nanotubes of TiO2 surrounding the mesh provide superior degradation compared to one-dimensional arrays on the planar surface of the anodized plate. With limited broad-scale comparative studies between varieties of different TiO2 supports, this study provides a comparative analysis of relative degradation efficiencies between the four photocatalytic configurations.
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12
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A facile strategy to synthesize Pd/TiO2 nanotube arrays with high visible light photocatalytic performance. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-018-03728-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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13
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Ziarati A, Badiei A, Luque R. Engineered bi-functional hydrophilic/hydrophobic yolk@shell architectures: A rational strategy for non-time dependent ultra selective photocatalytic oxidation. APPLIED CATALYSIS B: ENVIRONMENTAL 2019; 240:72-78. [DOI: 10.1016/j.apcatb.2018.08.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
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14
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Ziarati A, Badiei A, Luque R. Black hollow TiO2 nanocubes: Advanced nanoarchitectures for efficient visible light photocatalytic applications. APPLIED CATALYSIS B: ENVIRONMENTAL 2018; 238:177-183. [DOI: 10.1016/j.apcatb.2018.07.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
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15
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Alitabar M, Yoozbashizadeh H. Study on the morphology and photocatalytic activity of TiO2 nanotube arrays produced by anodizing in organic electrolyte with Ni, Na, and C as dopants. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4089-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Sabbagh S, Behnajady MA. Synthesis of TiO 2 (B) and High-temperature Stable Anatase TiO 2 Nanowires by Hydrothermal Method and Investigation of Photocatalytic Activity. Photochem Photobiol 2018; 95:733-739. [PMID: 30468513 DOI: 10.1111/php.13051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 10/30/2018] [Indexed: 12/27/2022]
Abstract
In this study, TiO2 nanowires (TNWs) were synthesized through hydrothermal method and were characterized using X-Ray diffraction (XRD), transmission electron microscopy (TEM) and BET techniques. Monoclinic TiO2 (B) is the dominant phase of TNWs up to 600°C which is completely transformed into a highly crystalline anatase phase at 800°C. The photocatalytic activity of TNWs, prepared at various calcination temperatures, was investigated in the removal of Rhodamine B as an organic model pollutant. The results indicated that the photocatalytic activity of TNWs, prepared at 800°C calcination temperature, was better than that of other samples and even TiO2 -P25 nanoparticles.
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Affiliation(s)
- Shervin Sabbagh
- Department of Chemistry, Tabriz Branch, Islamic Azad University, Tabriz, Iran
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17
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Boorboor Azimi E, Badiei A, Hossaini Sadr M. Dramatic visible photocatalytic performance of g-C3N4-based nanocomposite due to the synergistic effect of AgBr and ZnO semiconductors. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 2018; 122:174-183. [DOI: 10.1016/j.jpcs.2018.06.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
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18
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Synthesis of BiOBr x I 1−x solid solutions with dominant exposed {0 0 1} and {1 1 0} facets and their visible-light-induced photocatalytic properties. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.04.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Behnajady MA, Dadkhah H, Eskandarloo H. Horizontally rotating disc recirculated photoreactor with TiO 2-P25 nanoparticles immobilized onto a HDPE plate for photocatalytic removal of p-nitrophenol. ENVIRONMENTAL TECHNOLOGY 2018; 39:1061-1070. [PMID: 28412884 DOI: 10.1080/09593330.2017.1320431] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Accepted: 04/02/2017] [Indexed: 06/07/2023]
Abstract
In this study, a horizontally rotating disc recirculated (HRDR) photoreactor equipped with two UV lamps (6 W) was designed and fabricated for photocatalytic removal of p-nitrophenol (PNP). Photocatalyst (TiO2) nanoparticles were immobilized onto a high-density polyethylene (HDPE) disc, and PNP containing solution was allowed to flow (flow rate of 310 mL min-1) in radial direction along the surface of the rotating disc illuminated with UV light. The efficiency of direct photolysis and photocatalysis and the effect of rotating speed on the removal of PNP were studied in the HRDR photoreactor. It was found that TiO2-P25 nanoparticles are needed for the effective removal of PNP and there was an optimum rotating speed (450 rpm) for the efficient performance of the HRDR photoreactor. Then effects of operational variables on the removal efficiency were optimized using response surface methodology. The results showed that the predicted values of removal efficiency are consistent with experimental results with an R2 of 0.9656. Optimization results showed that maximum removal percent (82.6%) was achieved in the HRDR photoreactor at the optimum operational conditions. Finally, the reusability of the HRDR photoreactor was evaluated and the results showed high reusability and stability without any significant decrease in the photocatalytic removal efficiency.
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Affiliation(s)
- Mohammad A Behnajady
- a Department of Chemistry , Tabriz Branch, Islamic Azad University , Tabriz , Iran
| | - Hojjat Dadkhah
- a Department of Chemistry , Tabriz Branch, Islamic Azad University , Tabriz , Iran
| | - Hamed Eskandarloo
- b School of Chemistry, College of Science , University of Tehran , Tehran , Iran
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Effect of Ti3+ on enhancing photocatalytic and photoelectrochemical properties of TiO2 nanorods/nanosheets photoelectrode. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2017.10.029] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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21
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Ziarati A, Badiei A, Luque R, Ouyang W. Designer hydrogenated wrinkled yolk@shell TiO 2 architectures towards advanced visible light photocatalysts for selective alcohol oxidation. JOURNAL OF MATERIALS CHEMISTRY A 2018; 6:8962-8968. [DOI: 10.1039/c8ta02012d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Advanced wrinkled yolk@shell-TiO2 architectures were prepared via three sequential steps and provided excellent visible-light photocatalytic activities in selective alcohol oxidation.
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Affiliation(s)
- Abolfazl Ziarati
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
| | - Alireza Badiei
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
- Iran
| | - Rafael Luque
- Departamento de Quimica Organica
- Universidad de Cordoba
- E-14014 Cordoba
- Spain
- Peoples Friendship University of Russia (RUDN University)
| | - Weiyi Ouyang
- Departamento de Quimica Organica
- Universidad de Cordoba
- E-14014 Cordoba
- Spain
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22
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Jourshabani M, Shariatinia Z, Badiei A. Sulfur-Doped Mesoporous Carbon Nitride Decorated with Cu Particles for Efficient Photocatalytic Degradation under Visible-Light Irradiation. THE JOURNAL OF PHYSICAL CHEMISTRY C 2017; 121:19239-19253. [DOI: 10.1021/acs.jpcc.7b05556] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Affiliation(s)
- Milad Jourshabani
- Department
of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), Tehran 15875-4413, Iran
| | - Zahra Shariatinia
- Department
of Chemistry, Amirkabir University of Technology (Tehran Polytechnic), Tehran 15875-4413, Iran
| | - Alireza Badiei
- School
of Chemistry, College of Science, University of Tehran, Tehran, Iran
- Nanobiomedicine
Center of Excellence, Nanoscience and Nanotechnology Research Center, University of Tehran, Tehran, Iran
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23
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Luo JL, Wang SF, Liu W, Tian CX, Wu JW, Zu XT, Zhou WL, Yuan XD, Xiang X. Influence of different aluminum salts on the photocatalytic properties of Al doped TiO 2 nanoparticles towards the degradation of AO7 dye. Sci Rep 2017; 7:8108. [PMID: 28808280 PMCID: PMC5556116 DOI: 10.1038/s41598-017-08216-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 07/05/2017] [Indexed: 11/09/2022] Open
Abstract
Three kinds of Al-TiO2 samples and pure TiO2 samples were synthesized via a modified polyacrylamide gel route using different aluminum salts, including Al2(SO4)3∙18H2O, AlCl3, and Al(NO3)3∙9H2O under identical conditions. The influence of different aluminum salts on the phase purity, morphologies, thermal stability of anatase and photocatalytic properties of the as-prepared Al-TiO2 nanoparticles were studied. The energy gap (Eg) of Al-TiO2 nanoparticles decreases due to Al ion doping into TiO2. The photocatalytic activities of the Al-TiO2 samples were investigated by the degradation of acid orange 7 dye in aqueous solution under simulated solar irradiation. The Al-TiO2 nanoparticles prepared from Al(NO3)3∙9H2O exhibit the best photocatalytic activity among the four kinds of samples, followed in turn by the Al-TiO2 nanoparticles prepared with AlCl3, Al2(SO4)3∙18H2O and pure TiO2. The different performances are attributed to complex effects of Eg, particle size, surface morphology, phase purity and the defect sites of the Al-TiO2 nanoparticles.
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Affiliation(s)
- Jin-Ling Luo
- School of Physical Electronics, University of Electronic Science and Technology of China, Sichuan, Chengdu, 610054, China.
| | - Shi-Fa Wang
- Science and Technology on Vacuum Technology and Physics Laboratory, Lanzhou Institute of Physics, Gansu, Lanzhou, 730000, China
| | - Wei Liu
- School of Physical Electronics, University of Electronic Science and Technology of China, Sichuan, Chengdu, 610054, China
| | - Cheng-Xiang Tian
- School of Physical Electronics, University of Electronic Science and Technology of China, Sichuan, Chengdu, 610054, China
| | - Ju-Wei Wu
- School of Physical Electronics, University of Electronic Science and Technology of China, Sichuan, Chengdu, 610054, China
| | - Xiao-Tao Zu
- School of Physical Electronics, University of Electronic Science and Technology of China, Sichuan, Chengdu, 610054, China
| | - Wei-Lie Zhou
- Advanced Materials Research Institute, University of New Orleans, New Orleans, Louisiana, 70148, United States
| | - Xiao-Dong Yuan
- Research Center of Laser Fusion, China Ac ademy of Engineering Physics, Mianyang, 621900, China.
| | - Xia Xiang
- School of Physical Electronics, University of Electronic Science and Technology of China, Sichuan, Chengdu, 610054, China.
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Jourshabani M, Shariatinia Z, Badiei A. Controllable Synthesis of Mesoporous Sulfur-Doped Carbon Nitride Materials for Enhanced Visible Light Photocatalytic Degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:7062-7078. [PMID: 28648078 DOI: 10.1021/acs.langmuir.7b01767] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Mesoporous sulfur-doped graphitic carbon nitride (MCNS) materials were successfully synthesized using thiourea as a low-cost precursor and SiO2 gel solution as a template through a simple thermal condensation method. The effects of three synthesis key factors, namely, the reaction temperature, the reaction time, and the weight ratio of SiO2/thiourea, and also their interactions on the removal rate of methyl orange (MO) were investigated using response surface methodology, and the samples were subjected to several characterization techniques. Results showed that the optimized physicochemical properties could be achieved for the MCNS samples by controlling the synthesis key factors, and it was found that the reaction temperature and the reaction time had significant influences on the MO photocatalytic removal. Among bulk graphitic carbon nitride (g-C3N4), CN (undoped g-C3N4), CNS (sulfur-doped g-C3N4 without template), and TiO2 (Degussa P25) samples, the optimized MCNS-4 illustrated the highest photocatalytic activity toward the removal of MO under visible light irradiation. The enhanced performance originated from the synergistic effects of high surface area, mesoporous texture, sulfur doping, and high visible light absorption, which were helpful for the separation and transportation of the photogenerated electron-hole pairs. Furthermore, MCNS-4 revealed high reusability and stability without any significant decrease in its efficiency. Our findings not only confirm the importance of simultaneous sulfur doping and mesoporous structure to synthesize highly active photocatalysts but also might provide a new insight into textural engineering of carbon nitride materials only by the optimization of the synthesis key variables, considering their interactions without relying on extra metal oxides.
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Affiliation(s)
- Milad Jourshabani
- Department of Chemistry, Amirkabir University of Technology (Tehran Polytechnic) , P.O. Box 15875-4413, Tehran, Iran
| | - Zahra Shariatinia
- Department of Chemistry, Amirkabir University of Technology (Tehran Polytechnic) , P.O. Box 15875-4413, Tehran, Iran
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25
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Gazi M, Oladipo AA, Ojoro ZE, Gulcan HO. High-Performance Nanocatalyst for Adsorptive and Photo-Assisted Fenton-Like Degradation of Phenol: Modeling Using Artificial Neural Networks. CHEM ENG COMMUN 2017. [DOI: 10.1080/00986445.2017.1311253] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mustafa Gazi
- Polymeric Materials Research Laboratory, Chemistry Department, Eastern Mediterranean University, Famagusta, TRNC via Mersin 10, Turkey
| | - Akeem Adeyemi Oladipo
- Faculty of Engineering, Cyprus Science University, Ozankoy, Girne, TRNC via Mersin 10, Turkey
| | - Zainab Eniola Ojoro
- Polymeric Materials Research Laboratory, Chemistry Department, Eastern Mediterranean University, Famagusta, TRNC via Mersin 10, Turkey
| | - Hayrettin Ozan Gulcan
- Department of Pharmaceutical Chemistry, Eastern Mediterranean University, Famagusta, TRNC via Mersin 10, Turkey
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26
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Ziarati A, Badiei A, Mohammadi Ziarani G, Eskandarloo H. Simultaneous photocatalytic and catalytic activity of p–n junction NiO@anatase/rutile-TiO2 as a noble-metal free reusable nanoparticle for synthesis of organic compounds. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.02.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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27
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Alitabar M, Yoozbashizadeh H. Improving the visible light photoelectrochemical activity of synthesized TiO2nanotube arrays in an organic electrolyte containing sodium carbonate with doping by copper via single-step anodization. NEW J CHEM 2017. [DOI: 10.1039/c7nj02970e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The main aim of this research is to improve the photocatalytic activity of TiO2nanotubes by co-doping with copper and sodium for application in the water splitting process as a photoanode.
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Affiliation(s)
- M. Alitabar
- Department of Materials Science and Engineering
- Sharif University of Technology
- Tehran
- Iran
| | - H. Yoozbashizadeh
- Department of Materials Science and Engineering
- Sharif University of Technology
- Tehran
- Iran
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28
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Ge M, Li Q, Cao C, Huang J, Li S, Zhang S, Chen Z, Zhang K, Al‐Deyab SS, Lai Y. One-dimensional TiO 2 Nanotube Photocatalysts for Solar Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1600152. [PMID: 28105391 PMCID: PMC5238753 DOI: 10.1002/advs.201600152] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/16/2016] [Indexed: 05/20/2023]
Abstract
Hydrogen production from water splitting by photo/photoelectron-catalytic process is a promising route to solve both fossil fuel depletion and environmental pollution at the same time. Titanium dioxide (TiO2) nanotubes have attracted much interest due to their large specific surface area and highly ordered structure, which has led to promising potential applications in photocatalytic degradation, photoreduction of CO2, water splitting, supercapacitors, dye-sensitized solar cells, lithium-ion batteries and biomedical devices. Nanotubes can be fabricated via facile hydrothermal method, solvothermal method, template technique and electrochemical anodic oxidation. In this report, we provide a comprehensive review on recent progress of the synthesis and modification of TiO2 nanotubes to be used for photo/photoelectro-catalytic water splitting. The future development of TiO2 nanotubes is also discussed.
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Affiliation(s)
- Mingzheng Ge
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Qingsong Li
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Chunyan Cao
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Jianying Huang
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Shuhui Li
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Songnan Zhang
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Zhong Chen
- School of Materials Science and EngineeringNanyang Technological UniversitySingapore639798Singapore
| | - Keqin Zhang
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
| | - Salem S. Al‐Deyab
- Petrochemical Research ChairDepartment of ChemistryCollege of ScienceKing Saud UniversityRiyadh11451Saudi Arabia
| | - Yuekun Lai
- National Engineering Laboratory for Modern SilkCollege of Textile and Clothing, EngineeringSoochow UniversitySuzhou215123P. R. China
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29
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Luo S, Chen J, Huang Z, Liu C, Fang M. Controllable synthesis of Titania-Supported Bismuth Oxyiodide Heterostructured Nanofibers with Highly Exposed (1 1 0) Bismuth Oxyiodide Facets for Enhanced Photocatalytic Activity. ChemCatChem 2016. [DOI: 10.1002/cctc.201601047] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shunqin Luo
- State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences and Resources; China University of Geosciences (Beijing); 29 Xueyuan Road 100083 P.R. China
| | - Jiawei Chen
- State Key Laboratory of Biogeology and Environmental Geology, School of Earth Sciences and Resources; China University of Geosciences (Beijing); 29 Xueyuan Road 100083 P.R. China
| | - Zhaohui Huang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic, Minerals and Solid Wastes; National Laboratory of Mineral Materials, School of Materials Science and Technology; China University of Geosciences (Beijing); 29 Xueyuan Road 100083 P.R. China
| | - Chen Liu
- Environmental Protection Center; China Waterborne Transport Research Institute; 8 Xitucheng Road Beijing 100088 P.R. China
| | - Minghao Fang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic, Minerals and Solid Wastes; National Laboratory of Mineral Materials, School of Materials Science and Technology; China University of Geosciences (Beijing); 29 Xueyuan Road 100083 P.R. China
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30
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Eskandarloo H, Badiei A, Behnajady MA, Mohammadi Ziarani G. Hybrid Homogeneous and Heterogeneous Photocatalytic Processes for Removal of Triphenylmethane Dyes: Artificial Neural Network Modeling. CLEAN - SOIL, AIR, WATER 2016; 44:809-817. [DOI: 10.1002/clen.201400449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Affiliation(s)
- Hamed Eskandarloo
- School of Chemistry, College of Science; University of Tehran; Tehran Iran
| | - Alireza Badiei
- School of Chemistry, College of Science; University of Tehran; Tehran Iran
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31
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Afshar M, Badiei A, Eskandarloo H, Mohammadi Ziarani G. Charge separation by tetrahexahedron-SrTiO3/TiO2 heterojunction as an efficient photocatalyst. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2535-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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