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Hamrouni A, Moussa M, Fessi N, Palmisano L, Ceccato R, Rayes A, Parrino F. Solar Photocatalytic Activity of Ba-Doped ZnO Nanoparticles: The Role of Surface Hydrophilicity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2742. [PMID: 37887893 PMCID: PMC10609520 DOI: 10.3390/nano13202742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/03/2023] [Accepted: 10/08/2023] [Indexed: 10/28/2023]
Abstract
Bare zinc oxide (ZnO) and Ba-doped ZnO (BZO) samples were prepared by using a simple precipitation method. The effects of Barium doping on the structural, morphological, and optoelectronic properties, as well as on the physico-chemical features of the surface were investigated and correlated with the observed photocatalytic activity under natural solar irradiation. The incorporation of Ba2+ ions into the ZnO structure increased the surface area by ca. 14 times and enhanced the hydrophilicity with respect to the bare sample, as demonstrated by infrared spectroscopy and contact angle measurements. The surface hydrophilicity was correlated with the enhanced defectivity of the doped sample, as indicated by X-ray diffraction, Raman, and fluorescence spectroscopies. The resulting higher affinity with water was, for the first time, invoked as an important factor justifying the superior photocatalytic performance of BZO compared to the undoped one, in addition to the slightly higher separation of the photoproduced pairs, an effect that has already been reported in literature. In particular, observed kinetic constants values of 8∙10-3 and 11.3∙10-3 min-1 were determined for the ZnO and BZO samples, respectively, by assuming first order kinetics. Importantly, Ba doping suppressed photocorrosion and increased the stability of the BZO sample under irradiation, making it a promising photocatalyst for the abatement of toxic species.
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Affiliation(s)
- Abdessalem Hamrouni
- Laboratory of Catalysis and Materials for the Environment and Processes LRCMEP (LR19ES08), Faculty of Sciences of Gabès, University of Gabès, University Campus Erriadh City, Gabès 6072, Tunisia; (A.H.); (M.M.); (N.F.); (A.R.)
- Department of Chemical Engineering-Processes, National Engineering School of Gabès, Omar El Khateb Avenue, Zrig, Gabes 6029, Tunisia
| | - Marwa Moussa
- Laboratory of Catalysis and Materials for the Environment and Processes LRCMEP (LR19ES08), Faculty of Sciences of Gabès, University of Gabès, University Campus Erriadh City, Gabès 6072, Tunisia; (A.H.); (M.M.); (N.F.); (A.R.)
| | - Nidhal Fessi
- Laboratory of Catalysis and Materials for the Environment and Processes LRCMEP (LR19ES08), Faculty of Sciences of Gabès, University of Gabès, University Campus Erriadh City, Gabès 6072, Tunisia; (A.H.); (M.M.); (N.F.); (A.R.)
- Laboratoire d’Automatique et de Génie des Procédés (LAGEPP), University of Lyon, UMR 5007 CNRS, University Claude Bernard Lyon 1, 69622 Villeurbanne, France
| | - Leonardo Palmisano
- Department of Engineering, University of Palermo, Viale Delle Scienze Ed. 6, 90128 Palermo, Italy;
| | - Riccardo Ceccato
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, Italy;
| | - Ali Rayes
- Laboratory of Catalysis and Materials for the Environment and Processes LRCMEP (LR19ES08), Faculty of Sciences of Gabès, University of Gabès, University Campus Erriadh City, Gabès 6072, Tunisia; (A.H.); (M.M.); (N.F.); (A.R.)
- Department of Chemical Engineering-Processes, National Engineering School of Gabès, Omar El Khateb Avenue, Zrig, Gabes 6029, Tunisia
| | - Francesco Parrino
- Department of Industrial Engineering, University of Trento, via Sommarive 9, 38123 Trento, Italy;
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Franco P, Navarra W, Sacco O, De Marco I, Mancuso A, Vaiano V, Venditto V. Photocatalytic degradation of atrazine under visible light using Gd-doped ZnO prepared by supercritical antisolvent precipitation route. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.09.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abebe B, Tsegaye D, Ananda Murthy HC. Insight into nanocrystal synthesis: from precursor decomposition to combustion. RSC Adv 2022; 12:24374-24389. [PMID: 36128523 PMCID: PMC9425161 DOI: 10.1039/d2ra05222a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/21/2022] Open
Abstract
Nanotechnology-based synthesis of nanoscale materials has appealed to the attention of scientists in the modern scientific community. In the bottom-up approach, atoms start to aggregate/agglomerate and form nuclei within the minimum and maximum supersaturation range. Once nuclei are generated above the critical-free energy/radius, the growth is initiated by obeying the LaMar model with a slight extra simple growth by diffusion advancement. The in situ real-time liquid phase analysis using STEM, AFM, and XAS techniques is used to control precursor decomposition to the nanocrystal formation process and should be a non-stoppable technique. Solution combustion synthesis (SCS) is a time-/energy-efficient self-sustained process that produces mass-/ion transport active porous materials. SCS also permits the synthesis of evenly distributed-doped and hybrid-nanomaterials, which are beneficial in tuning crucial properties of the materials. The growth and development of nanocrystals, dehydrating the sol in the presence of a surfactant or/and fuel results in combustion once it arrives at the ignition temperature. Besides, the kinetic and thermodynamics controlled architecture-directing agent-assisted SCS offers colloidal nanocrystal framework formation, which is currently highly applicable for energy devices. This short review provides insightful information that adds to the existing nanocrystal synthesis process and solution combustion synthesis and recommends future directions in the field. The LaMar model visualizes the process of nanocrystal formation. The solution combustion synthesis approach is a noble methodology resulting in highly stable and ordered porous nanomaterials.![]()
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Affiliation(s)
- Buzuayehu Abebe
- Adama Science and Technology University, Department of Applied Chemistry, 1888, Adama, Ethiopia
| | - Dereje Tsegaye
- Adama Science and Technology University, Department of Applied Chemistry, 1888, Adama, Ethiopia
| | - H. C. Ananda Murthy
- Adama Science and Technology University, Department of Applied Chemistry, 1888, Adama, Ethiopia
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MOFs Derived Hetero-ZnO/Fe 2O 3 Nanoflowers with Enhanced Photocatalytic Performance towards Efficient Degradation of Organic Dyes. NANOMATERIALS 2021; 11:nano11123239. [PMID: 34947588 PMCID: PMC8707436 DOI: 10.3390/nano11123239] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/23/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022]
Abstract
It is still a challenge for wastewater treatment to develop efficient yet low-cost photocatalysts on a large scale. Herein, a facile yet efficient method was devised to successfully synthesize ZnO/Fe2O3 nanoflowers (NFs) by using metal organic framework ZIF-8 as the precursor. The photocatalytic activities of the as-prepared hetero-ZnO/Fe2O3 NFs are purposefully evaluated by photocatalytic degradation of methylene blue (MB) and methyl orange (MO) under UV light irradiation. The resulting ZnO/Fe2O3 NFs display even higher photocatalytic activities than those of single-phase ZnO and Fe2O3 as a photocatalyst for the degradation of both MB ad MO. Particularly, nearly 100% MB can be photocatalytically degraded in 90 min under UV light irradiation using the hetero-NFs photocatalyst. The enhanced photocatalytic properties are probably ascribed to the synergistic contributions from the suitable band alignment of ZnO and Fe2O3, large surface area, and strong light absorption property. Radical scavenger experiments prove that the photogenerated holes, ·OH and ·O2-, play key roles in photocatalytic degradation process of organic dyes. Accordingly, the photocatalytic degradation mechanism of hetero-ZnO/Fe2O3 NFs towards dyes is tentatively proposed. The work contributes an effective way to rationally design and fabricate advanced photocatalysts with heterojunction structures for photocatalytic applications.
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Abebe B, Zereffa EA, Murthy HCA. Synthesis of Poly(vinyl alcohol)-Aided ZnO/Mn 2O 3 Nanocomposites for Acid Orange-8 Dye Degradation: Mechanism and Antibacterial Activity. ACS OMEGA 2021; 6:954-964. [PMID: 33458547 PMCID: PMC7808141 DOI: 10.1021/acsomega.0c05597] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 12/14/2020] [Indexed: 05/24/2023]
Abstract
Zinc oxide is one of the novel metal oxides utilized for diverse applications. The sol-gel and unintended self-propagation procedures were applied to synthesize the porous and high surface area ZnO-based metal oxide nanocomposite. The p-type manganese(III) oxide was successfully coupled with n-type ZnO. The physical property characterization results revealed the surface area, porosity, and charge transfer capability improvement on the poly(vinyl alcohol) (PVA)-aided binary nanocomposite (PVA-ZnO/Mn2O3), compared to ZnO. The XRD patterns and TEM image analysis validated the nanometer size range for the materials (15-60 nm). The SEM micrographs and BET spectral details have confirmed the porous nature of the PVA-ZnO/Mn2O3 nanocomposite. The supporting results were obtained from the HRTEM (IFFT) and SAED pattern analyses. The EDX and HRTEM analyses were used for the confirmation of elemental composition and reality of the PVA-ZnO/Mn2O3 composite, respectively. The presence of the improved charge transfer property for PVA-ZnO/Mn2O3, compared to ZnO, was evidenced from acid orange-8 dye degradation. The highest zone of inhibition (14 mm) was recorded on Escherichia coli bacteria for the uncalcined PVA-ZnO/Mn2O3 nanocomposite compared to PVA, yet, less zone of inhibition compared to the calcined PVA-ZnO/Mn2O3 nanocomposite. The authors recommend the formation of the couple between metal oxides by electrochemical technique analyses as a future work.
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Affiliation(s)
- Buzuayehu Abebe
- Department of Applied Chemistry, Adama Science and Technology University, Adama 1888, Ethiopia
| | - Enyew A. Zereffa
- Department of Applied Chemistry, Adama Science and Technology University, Adama 1888, Ethiopia
| | - H C Ananda Murthy
- Department of Applied Chemistry, Adama Science and Technology University, Adama 1888, Ethiopia
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Abebe B, Murthy HCA, Zereffa EA. Multifunctional application of PVA-aided Zn-Fe-Mn coupled oxide nanocomposite. NANOSCALE RESEARCH LETTERS 2021; 16:1. [PMID: 33387075 PMCID: PMC7778673 DOI: 10.1186/s11671-020-03464-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/11/2020] [Indexed: 05/28/2023]
Abstract
Zinc oxide (ZnO) is a fascinating semiconductor material with many applications such as adsorption, photocatalysis, sensor, and antibacterial activities. By using a poly (vinyl alcohol) (PVA) polymer as a capping agent and metal oxides (iron and manganese) as a couple, the porous PVA-aided Zn/Fe/Mn ternary oxide nanocomposite material (PTMO-NCM) was synthesized. The thermal, optical, crystallinity, chemical bonding, porosity, morphological, charge transfer properties of the synthesized materials were confirmed by DTG/DSC, UV-Vis-DRS, XRD, FT-IR, BET, SEM-EDAX/TEM-HRTEM-SAED, and CV/EIS/amperometric analytical techniques, respectively. The PTMO-NCM showed an enhanced surface area and charge transfer capability, compared to ZnO. Using the XRD pattern and TEM image analysis, the crystalline size of the materials was confirmed to be in the nanometer range. The porosity and superior charge transfer capabilities of the PTMO-NCM were confirmed from the BET, HRTEM (IFFT)/SAED, and CV/EIS analysis. The adsorption kinetics (adsorption reaction/adsorption diffusion) and adsorption isotherm test confirmed the presence of a chemisorption type of adsorbate/methylene blue dye-adsorbent/PTMO-NCM interaction. The photocatalytic performance was tested on the Congo red and Acid Orange-8 dyes. The superior ascorbic acid sensing capability of the material was understood from CV and amperometric analysis. The noble antibacterial activities of the material were also confirmed on both gram-negative and gram-positive bacteria.
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Affiliation(s)
- Buzuayehu Abebe
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888, Adama, Ethiopia.
| | - H C Ananda Murthy
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888, Adama, Ethiopia.
| | - Enyew Amare Zereffa
- Department of Applied Chemistry, School of Applied Natural Science, Adama Science and Technology University, P O Box 1888, Adama, Ethiopia
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Abebe B, Ravikumar C, Zereffa EA, Naveen Kumar A, Murthy HCA. Photocatalytic and superior ascorbic acid sensor activities of PVA/Zn-Fe-Mn ternary oxide nanocomposite. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108343] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Qahtan TF, Gondal MA, Dastageer MA, Kwon G, Ezazi M, Al-Kuban MZ. Thermally Sensitized Membranes for Crude Oil-Water Remediation under Visible Light. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48572-48579. [PMID: 33074661 DOI: 10.1021/acsami.0c13888] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Effective remediation of produced water requires separating crude oil-water mixture and removing the dissolved organic pollutants. Membranes with selective wettability for water over oil enable the gravity-driven separation of an oil-water mixture by allowing water to permeate through while repelling oil. However, these membranes are often limited by their inability to remove the dissolved organic pollutants. In this work, a membrane with in-air superhydrophilic and underwater superoleophobic wettability is fabricated by thermal annealing of a stainless steel mesh. The resulting membrane possesses a hierarchical surface texture covered with a photocatalytic oxide layer composed of iron oxide and chromium oxide. The membrane exhibits chemical and mechanical robustness, which makes it suitable for remediation of crude oil and water mixture. Further, after being fouled by crude oil, the membrane can recover its inherent water-rich permeate flux upon visible light irradiation. Finally, the membrane demonstrates that it can separate surfactant-stabilized crude oil-in-water emulsion under gravity and decontaminate water-rich permeate by photocatalytic degradation of dissolved organic pollutants upon continuous irradiation of visible light.
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Affiliation(s)
- Talal F Qahtan
- Laser Research Group Physics Department & Center of Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Mohammed A Gondal
- Laser Research Group Physics Department & Center of Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Mohamed A Dastageer
- Laser Research Group Physics Department & Center of Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Gibum Kwon
- Department of Mechanical Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Mohammadamin Ezazi
- Department of Mechanical Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Mohammed Z Al-Kuban
- Laser Research Group Physics Department & Center of Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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Abebe B, Murthy HCA, Zereffa EA, Adimasu Y. Synthesis and characterization of ZnO/PVA nanocomposites for antibacterial and electrochemical applications. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1814338] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Buzuayehu Abebe
- Department of Applied Chemistry, School of Applied Natural Sciences, Adama Science and Technology University, Adama, Ethiopia
| | - H C Ananda Murthy
- Department of Applied Chemistry, School of Applied Natural Sciences, Adama Science and Technology University, Adama, Ethiopia
| | - Enyew Amare Zereffa
- Department of Applied Chemistry, School of Applied Natural Sciences, Adama Science and Technology University, Adama, Ethiopia
| | - Yeshaneh Adimasu
- Department of Applied Biology, School of Applied Natural Sciences, Adama Science and Technology University, Adama, Ethiopia
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Hamrouni A, Azzouzi H, Rayes A, Palmisano L, Ceccato R, Parrino F. Enhanced Solar Light Photocatalytic Activity of Ag Doped TiO 2-Ag 3PO 4 Composites. NANOMATERIALS 2020; 10:nano10040795. [PMID: 32326155 PMCID: PMC7221970 DOI: 10.3390/nano10040795] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 12/14/2022]
Abstract
Composites comprised of Ag3PO4 and bare TiO2 (TiO2@Ag3PO4) or silver doped TiO2 (Ag@TiO2–Ag3PO4) have been synthesized by coupling sol–gel and precipitation methods. For the sake of comparison, also the bare components have been similarly prepared. All the samples have been characterized by X-ray diffraction (XRD), UV-vis diffuse reflectance spectroscopy (DRS), scanning electron microscopy (SEM), Fourier transformed infrared spectroscopy (FTIR), photoelectrochemical measurements, and specific surface area (SSA) analysis. The optoelectronic and structural features of the samples have been related to their photocatalytic activity for the degradation of 4–nitrophenol under solar and UV light irradiation. Coupling Ag3PO4 with silver doped TiO2 mitigates photocorrosion of the Ag3PO4 counterpart, and remarkably improves the photocatalytic activity under solar light irradiation with respect to the components, to the TiO2–Ag3PO4 sample, and to the benchmark TiO2 Evonik P25. These features open the route to future applications of this material in the field of environmental remediation.
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Affiliation(s)
- Abdessalem Hamrouni
- Laboratoire de Recherche Catalyse et Matériaux pour l’Environnement et les Procédés URCMEP (UR11ES85), Faculté des Sciences de Gabès, Université de Gabès, Campus Universitaire Cité Erriadh, Gabès 6072, Tunisia; (A.H.); (H.A.); (A.R.)
| | - Hanen Azzouzi
- Laboratoire de Recherche Catalyse et Matériaux pour l’Environnement et les Procédés URCMEP (UR11ES85), Faculté des Sciences de Gabès, Université de Gabès, Campus Universitaire Cité Erriadh, Gabès 6072, Tunisia; (A.H.); (H.A.); (A.R.)
| | - Ali Rayes
- Laboratoire de Recherche Catalyse et Matériaux pour l’Environnement et les Procédés URCMEP (UR11ES85), Faculté des Sciences de Gabès, Université de Gabès, Campus Universitaire Cité Erriadh, Gabès 6072, Tunisia; (A.H.); (H.A.); (A.R.)
| | - Leonardo Palmisano
- Department of Engineering, University of Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy;
| | - Riccardo Ceccato
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy;
| | - Francesco Parrino
- Department of Industrial Engineering, University of Trento, Via Sommarive 9, 38123 Trento, Italy;
- Correspondence:
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11
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Titanium-doped stainless steel nanotubes for the photocatalytic degradation of an organic compound. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.09.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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The antibacterial and anticancer properties of zinc oxide coated iron oxide nanotextured composites. Colloids Surf B Biointerfaces 2019; 177:512-519. [PMID: 30818244 DOI: 10.1016/j.colsurfb.2019.02.041] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 01/30/2019] [Accepted: 02/20/2019] [Indexed: 12/25/2022]
Abstract
Core-shell α-Fe2O3-ZnO structures of different nanotextured morphology were synthesized through wet chemical routes using different solvents like ethanol, ethanolamine, water and acetaldehyde. Morphological tuning using different solvents resulted in the formation of different shapes, such as disc, spindle, rod and sphere (abbreviated as FZ-ND, FZ-NSP, FZ-NR and FZ-NS, respectively). Structural, morphological and compositional characterization of these nanoparticles (NPs) has been carried out. Antibacterial efficacy of the synthesized NPs was checked against Gram negative V. cholerae N16961 (VcN16961) and Gram positive S. aureus bacteria by recording optical density (OD) at different time points. Among the NPs tested, FZ-NSP was found to be the most effective against VcN16961, while FZ-NR showed maximum efficacy against S. aureus, implying the importance of nanotextured surface as well as the morphology in the manifestation of antibacterial activity. The kinetics of growth for both the bacteria has been modelled using logistic approach. Cytotoxicity was evaluated through MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyltetrazolium bromide) assay against human breast adenocarcinoma cell line (MCF-7), human hepatocarcinoma cell line (HepG2) and against normal human embryonic kidney cell line (HEK-293). The lesser toxicity of α-Fe2O3-ZnO towards HEK-293 and the potent anticancer activity against MCF-7 and HepG2 cells underline its applicability as anticancer agent. With continued improvement of nanotechnology, this study may pave the way for designing and construction of various morphologically diverse, nanotextured materials with desired functional attributes.
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Parrino F, De Pasquale C, Palmisano L. Influence of Surface-Related Phenomena on Mechanism, Selectivity, and Conversion of TiO 2 -Induced Photocatalytic Reactions. CHEMSUSCHEM 2019; 12:589-602. [PMID: 30387918 DOI: 10.1002/cssc.201801898] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 09/28/2018] [Indexed: 06/08/2023]
Abstract
Heterogeneous photocatalysis is the result of an inextricable connection of several factors differently contributing to the overall process. Photon absorption is the "sine qua non" condition for the reaction to occur. In fact, photons can be considered as immaterial reactants, and all of the phenomena related to the interaction of light-matter play a prominent role. However, other factors contribute in a concerted way to address the reaction, so that the relative contribution of each of them is often difficult to evaluate. In this framework, the present paper highlights some aspects of the interaction of TiO2 surface-adsorbate species that could be underestimated and their influence on the conversion, selectivity, and mechanisms of photocatalytic reactions. To this aim, some paradigmatic examples on the adsorption of water and organics on TiO2 are reported.
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Affiliation(s)
- Francesco Parrino
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, viale delle Scienze 8, 90128, Palermo, Italy
- Dipartimento di Energia, Ingegneria dell'informazione e Modelli Matematici (DEIM), Università degli Studi di Palermo, viale delle Scienze Ed. 6, 90128, Palermo, Italy
- Dipartimento di Ingegneria Industriale (DII), Università di Trento, via Sommarive 9, 38123, Trento, Italy
| | - Claudio De Pasquale
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, viale delle Scienze 8, 90128, Palermo, Italy
| | - Leonardo Palmisano
- Dipartimento di Energia, Ingegneria dell'informazione e Modelli Matematici (DEIM), Università degli Studi di Palermo, viale delle Scienze Ed. 6, 90128, Palermo, Italy
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Zhang Y, Zhai Y, Yu Y, Su Z, Yin J, Wang C, Fan X. Improved photo-dechlorination at polar photocatalysts K3B6O10X (X = Cl, Br) by halogen atoms-modulated polarization. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00148d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The material with larger distortion ability has better photocatalytic activity during the dechlorination of CPs.
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Affiliation(s)
- Yang Zhang
- College of Chemistry and Chemical Engineering
- Xinjiang Normal University
- 830054 Xinjiang
- China
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health
| | - Yufei Zhai
- Laboratory of Environmental Sciences and Technology
- Xinjiang Technical Institute of Physics & Chemistry
- and Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences
- Urumqi 830011
- China
| | - Yang Yu
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health
- Jinan University
- Guangzhou 510632
- China
| | - Zhi Su
- College of Chemistry and Chemical Engineering
- Xinjiang Normal University
- 830054 Xinjiang
- China
| | - Jiao Yin
- Laboratory of Environmental Sciences and Technology
- Xinjiang Technical Institute of Physics & Chemistry
- and Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences
- Urumqi 830011
- China
| | - Chuanyi Wang
- Laboratory of Environmental Sciences and Technology
- Xinjiang Technical Institute of Physics & Chemistry
- and Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences
- Urumqi 830011
- China
| | - Xiaoyun Fan
- School of Environment and Guangdong Key Laboratory of Environmental Pollution and Health
- Jinan University
- Guangzhou 510632
- China
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Parrino F, Loddo V, Augugliaro V, Camera-Roda G, Palmisano G, Palmisano L, Yurdakal S. Heterogeneous photocatalysis: guidelines on experimental setup, catalyst characterization, interpretation, and assessment of reactivity. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2018. [DOI: 10.1080/01614940.2018.1546445] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Francesco Parrino
- “Schiavello-Grillone” Photocatalysis Group, Università degli Studi di Palermo, Palermo, Italy
| | - Vittorio Loddo
- “Schiavello-Grillone” Photocatalysis Group, Università degli Studi di Palermo, Palermo, Italy
| | - Vincenzo Augugliaro
- “Schiavello-Grillone” Photocatalysis Group, Università degli Studi di Palermo, Palermo, Italy
| | - Giovanni Camera-Roda
- Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali, Università di Bologna, Bologna, Italy
| | - Giovanni Palmisano
- Department of Chemical Engineering, Khalifa University of Science and Technology, Masdar City, United Arab Emirates
| | - Leonardo Palmisano
- “Schiavello-Grillone” Photocatalysis Group, Università degli Studi di Palermo, Palermo, Italy
| | - Sedat Yurdakal
- Kimya Bölümü, Fen-Edebiyat Fakültesi, Afyon Kocatepe Üniversitesi, Afyonkarahisar, Turkey
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