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Al-Enazi NM. Structural, optical, morphological, sun-light driven photocatalytic and antimicrobial investigations of Ag 2S and Cu/Ag 2S nanoparticles. Saudi J Biol Sci 2023; 30:103840. [PMID: 37964782 PMCID: PMC10641547 DOI: 10.1016/j.sjbs.2023.103840] [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: 09/02/2023] [Revised: 09/26/2023] [Accepted: 10/15/2023] [Indexed: 11/16/2023] Open
Abstract
This study focusses on the preparation of silver sulphide (Ag2S) and Cu-doped Ag2S (Cu/Ag2S) nanoparticles (NPs) by sol-gel method and demonstrated their photocatalytic and antibacterial applications. The X-ray diffraction (XRD) and Fourier-transform infrared (FTIR) analysis demonstrated that the prepared NPs are effectively crystallized in the polycrystalline single-phase monoclinic geometry of Ag2S. The optical bandgap is significantly reduced, and for both the sample the average grain size is observed to have narrowed from 42 nm to 23 nm. Both NPs were confirmed to be spherical nature as observed by scanning electron microscopy (SEM), and the energy dispersive X-ray (EDX) spectroscopy analysis validated the presence of all necessary components at the expected concentrations in the obtained samples. Under the irradiation of sunshine, the photocatalytic properties of each sample were investigated for their ability to facilitate the photodegradation of a hazardous methylene blue (MB) dye in an aqueous solution. Cu/Ag2S sample possesses a profound photocatalytic reaction for the destruction of MB dye. Furthermore, the Cu-doped Ag2S NPs suppress the proliferation of Staphylococcus aureus and Escherichia coli. In comparison to pure Ag2S NPs, Cu/Ag2S showed enhanced antibacterial activity against both the bacteria. Current study suggests that the Cu doped Ag2S NPs could be a promising material for wastewater treatment and antimicrobial agents.
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Affiliation(s)
- Nouf M. Al-Enazi
- Department of Biology, College of Science and Humanities in Al-Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
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2
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Zuccari G, Alfei S. Development of Phytochemical Delivery Systems by Nano-Suspension and Nano-Emulsion Techniques. Int J Mol Sci 2023; 24:9824. [PMID: 37372971 DOI: 10.3390/ijms24129824] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
The awareness of the existence of plant bioactive compounds, namely, phytochemicals (PHYs), with health properties is progressively expanding. Therefore, their massive introduction in the normal diet and in food supplements and their use as natural therapeutics to treat several diseases are increasingly emphasized by several sectors. In particular, most PHYs possessing antifungal, antiviral, anti-inflammatory, antibacterial, antiulcer, anti-cholesterol, hypoglycemic, immunomodulatory, and antioxidant properties have been isolated from plants. Additionally, their secondary modification with new functionalities to further improve their intrinsic beneficial effects has been extensively investigated. Unfortunately, although the idea of exploiting PHYs as therapeutics is amazing, its realization is far from simple, and the possibility of employing them as efficient clinically administrable drugs is almost utopic. Most PHYs are insoluble in water, and, especially when introduced orally, they hardly manage to pass through physiological barriers and scarcely reach the site of action in therapeutic concentrations. Their degradation by enzymatic and microbial digestion, as well as their rapid metabolism and excretion, strongly limits their in vivo activity. To overcome these drawbacks, several nanotechnological approaches have been used, and many nanosized PHY-loaded delivery systems have been developed. This paper, by reporting various case studies, reviews the foremost nanosuspension- and nanoemulsion-based techniques developed for formulating the most relevant PHYs into more bioavailable nanoparticles (NPs) that are suitable or promising for clinical application, mainly by oral administration. In addition, the acute and chronic toxic effects due to exposure to NPs reported so far, the possible nanotoxicity that could result from their massive employment, and ongoing actions to improve knowledge in this field are discussed. The state of the art concerning the actual clinical application of both PHYs and the nanotechnologically engineered PHYs is also reviewed.
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Affiliation(s)
- Guendalina Zuccari
- Department of Pharmacy (DiFAR), University of Genoa, Viale Cembrano 4, I-16148 Genova, Italy
| | - Silvana Alfei
- Department of Pharmacy (DiFAR), University of Genoa, Viale Cembrano 4, I-16148 Genova, Italy
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3
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Maddi L, Gurugubelli TR, Babu B, Yoo K. Effect of Cu2+ doping on the structural and optical properties of ZnAl2O4 nanosheets. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02480-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Harchol A, Barak Y, Hughes KE, Hartstein KH, Jöbsis HJ, Prins PT, de Mello Donegá C, Gamelin DR, Lifshitz E. Optically Detected Magnetic Resonance Spectroscopy of Cu-Doped CdSe/CdS and CuInS 2 Colloidal Quantum Dots. ACS NANO 2022; 16:12866-12877. [PMID: 35913892 DOI: 10.1021/acsnano.2c05130] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Copper-doped II-VI and copper-based I-III-VI2 colloidal quantum dots (CQDs) have been at the forefront of interest in nanocrystals over the past decade, attributable to their optically activated copper states. However, the related recombination mechanisms are still unclear. The current work elaborates on recombination processes in such materials by following the spin properties of copper-doped CdSe/CdS (Cu@CdSe/CdS) and of CuInS2 and CuInS2/(CdS, ZnS) core/shell CQDs using continuous-wave and time-resolved optically detected magnetic resonance (ODMR) spectroscopy. The Cu@CdSe/CdS ODMR showed two distinct resonances with different g factors and spin relaxation times. The best fit by a spin Hamiltonian simulation suggests that emission comes from recombination of a delocalized electron at the conduction band edge with a hole trapped in a Cu2+ site with a weak exchange coupling between the two spins. The ODMR spectra of CuInS2 CQDs (with and without shells) differ significantly from those of the copper-doped II-VI CQDs. They are comprised of a primary resonance accompanied by another resonance at half-field, with a strong correlation between the two, indicating the involvement of a triplet exciton and hence stronger electron-hole exchange coupling than in the doped core/shell CQDs. The spin Hamiltonian simulation shows that the hole is again associated with a photogenerated Cu2+ site. The electron resides near this Cu2+ site, and its ODMR spectrum shows contributions from superhyperfine coupling to neighboring indium atoms. These observations are consistent with the occurrence of a self-trapped exciton associated with the copper site. The results presented here support models under debate for over a decade and help define the magneto-optical properties of these important materials.
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Affiliation(s)
- Adi Harchol
- Schulich Faculty of Chemistry, Solid State Institute, Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Yahel Barak
- Schulich Faculty of Chemistry, Solid State Institute, Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Kira E Hughes
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Kimberly H Hartstein
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Huygen J Jöbsis
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CC Utrecht, The Netherlands
| | - P Tim Prins
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CC Utrecht, The Netherlands
| | - Celso de Mello Donegá
- Condensed Matter and Interfaces, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CC Utrecht, The Netherlands
| | - Daniel R Gamelin
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Efrat Lifshitz
- Schulich Faculty of Chemistry, Solid State Institute, Russell Berrie Nanotechnology Institute, Technion-Israel Institute of Technology, Haifa 3200003, Israel
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Chen B, Zhang J, Li R, Liang Y, Feng C, Zhang H. A comparable study of the optical spectra and EPR parameters for 3d 1 - and 3d 9 -doped MgNH 4 PO 4 ·6H 2 O. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2022; 60:554-562. [PMID: 35246995 DOI: 10.1002/mrc.5264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/06/2022] [Accepted: 02/28/2022] [Indexed: 06/14/2023]
Abstract
VO2+ (3d1 ) and Cu2+ (3d9 ) are the two complementary states that usually show opposite distortions when they are doped in crystals. In this work, the optical absorption spectra (OAS), electron paramagnetic resonance (EPR) parameters, and local structure (LS) for VO2+ (and Cu2+ ) in MgNH4 PO4 ·6H2 O (MPPH) are uniformly investigated on the basis of the high-order perturbation formulas for a 3d1 (and 3d9 ) ion in tetragonally compressed (and elongated) octahedra, respectively. In the calculated formulas, the required crystal-field parameters can be obtained from the superposition model and reasonably linked with the LS distortion for VO2+ and Cu2+ centers. Based on the calculations, the tetragonal compressed [VO(H2 O)5 ]2+ cluster (and tetragonal elongated [Cu(H2 O)6 ]2+ cluster) is found to suffer tetragonal compression ratio of 1.65% and tetragonal elongation ratio of 3.8% along C4 -axis, respectively, due to the Jahn-Teller (JT) effect. The theoretical EPR parameters based on the above lattice distortions agree well with the experimental data, and the LS of the VO2+ and Cu2+ centers in MPPH is discussed.
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Affiliation(s)
- Baojin Chen
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
| | - Junlong Zhang
- Key Laboratory of Opto-Electronic Information Science and Technology of Jiangxi Province, Nanchang, China
| | - Rong Li
- Key Laboratory of Opto-Electronic Information Science and Technology of Jiangxi Province, Nanchang, China
| | - Yajin Liang
- Key Laboratory of Opto-Electronic Information Science and Technology of Jiangxi Province, Nanchang, China
| | - Cuidi Feng
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
- Key Laboratory of Opto-Electronic Information Science and Technology of Jiangxi Province, Nanchang, China
| | - Huaming Zhang
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
- Key Laboratory of Opto-Electronic Information Science and Technology of Jiangxi Province, Nanchang, China
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Dharmana G, Srinivasa Rao MP, Potukuchi DM. Visible light driven robust photocatalytic activity in vanadium-doped ZnO/SnS core-shell nanocomposites for decolorization of MB dye towards wastewater treatment. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2022.2075386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Govinda Dharmana
- Physics Division, Department of Basic Sciences & Humanities, GMR Institute of Technology, Rajam, India
| | - M. P. Srinivasa Rao
- Physics Division, Department of Basic Sciences & Humanities, GMR Institute of Technology, Rajam, India
| | - D. M. Potukuchi
- Department of Physics, Jawaharlal Nehru Technological University, Kakinada, India
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Facile Synthesis, Characterization, and Photocatalytic Activity of Hydrothermally Grown Cu2+-Doped ZnO–SnS Nanocomposites for MB Dye Degradation. Catalysts 2022. [DOI: 10.3390/catal12030328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The morphology, chemical composition, and doping process of metal oxides and sulfides play a significant role in their photocatalytic performance under solar light illumination. We synthesized Cu2+-doped ZnO–SnS nanocomposites at 220 °C for 10 h, using hydrothermal methods. These nanocomposites were structurally, morphologically, and optically characterized using various techniques, including powder X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and UV-visible absorption spectroscopy. Their photocatalytic activity (PCA) on methylene blue (MB) pollutant dye was examined under 150 W solar light illumination. Mixed-phase abundances with hexagonal ZnO and orthorhombic SnS structures were observed. TEM micrographs showed changes in morphology from spherical to nano-flake structures with an increasing doping concentration. XPS indicated the chemical states of the constituent elements in the nanocomposites. UV-visible absorption spectroscopy showed a decrease in the bandgap with an increasing doping concentration. Strong PCA was observed due to the separation of charge carriers, a change in bandgap, and a high light absorption ability under solar light irradiation. The measured photodegradation efficiency of the MB dye was approximately 97% after 2 h. The movement of the charge carriers and the bandgap alignment of the synthesized composites are briefly discussed.
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Enhanced Photocatalytic Activity of ZnO–CdS Composite Nanostructures towards the Degradation of Rhodamine B under Solar Light. Catalysts 2022. [DOI: 10.3390/catal12010084] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A simple chemical precipitation route was utilized for the synthesis of ZnO nanoparticles (NPs), CdS NPs and ZnO–CdS nanocomposites (NCs). The synthesized nanostructures were examined for the crystal structure, morphology, optical properties and photodegradation activity of rhodamine B (RhB) dye. The ZnO–CdS NCs showed a mixed phase of hexagonal wurtzite structure for both ZnO NPs and CdS NPs. Pure ZnO NPs and CdS NPs possessed bandgaps of 3.2617 and 2.5261 eV, respectively. On the other hand, the composite nanostructures displayed a more narrow bandgap of 2.9796 eV than pure ZnO NPs. When compared to bare ZnO NPs, the PL intensity of near-band-edge emission at 381 nm was practically suppressed, suggesting a lower rate of photogenerated electron–hole (e−/h+) pairs recombination, resulting in enhanced photocatalytic activity. Under solar light, the composite nanostructures displayed a photodegradation efficiency of 98.16% towards of RhB dye. After four trials, the structural stability of ZnO–CdS NCs was verified.
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Yuan H, Li J, Zhang W, Wang D, Wang L, Chu S, Zhai W, Ding L, Jiao Z. Polydopamine assisted transformation of ZnO from nanospheres to nanosheets grown in nanoporous BiVO4 films for improved photocatalytic performance. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01879e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A BiVO4/ZnO nanosheet heterostructure has been fabricated on stainless steel mesh by a solid-solution drying and calcination method, during which ZnO spheres were converted to nanosheets with the aid of polydopamine.
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Affiliation(s)
- Hao Yuan
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Jiaxin Li
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Wenjie Zhang
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Deting Wang
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Lin Wang
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Shuai Chu
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Wei Zhai
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Lei Ding
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
| | - Zhengbo Jiao
- Institute of Materials for Energy and Environment, College of Material Science and Engineering, Qingdao University, Qingdao 266071, P. R. China
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10
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Structural, optical, and luminescence properties of Ni2+-doped ZnO–CdS nanocomposite: synthesis and investigations for green light emission. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01888-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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11
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Najahi-Missaoui W, Arnold RD, Cummings BS. Safe Nanoparticles: Are We There Yet? Int J Mol Sci 2020; 22:ijms22010385. [PMID: 33396561 PMCID: PMC7794803 DOI: 10.3390/ijms22010385] [Citation(s) in RCA: 175] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/24/2020] [Accepted: 12/27/2020] [Indexed: 12/14/2022] Open
Abstract
The field of nanotechnology has grown over the last two decades and made the transition from the benchtop to applied technologies. Nanoscale-sized particles, or nanoparticles, have emerged as promising tools with broad applications in drug delivery, diagnostics, cosmetics and several other biological and non-biological areas. These advances lead to questions about nanoparticle safety. Despite considerable efforts to understand the toxicity and safety of these nanoparticles, many of these questions are not yet fully answered. Nevertheless, these efforts have identified several approaches to minimize and prevent nanoparticle toxicity to promote safer nanotechnology. This review summarizes our current knowledge on nanoparticles, their toxic effects, their interactions with mammalian cells and finally current approaches to minimizing their toxicity.
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Affiliation(s)
- Wided Najahi-Missaoui
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, GA 30602, USA;
- Correspondence: ; Tel.: +1-706-542-6552; Fax: +70-6542-5358
| | - Robert D. Arnold
- Department of Drug Discovery & Development, Harrison School of Pharmacy, Auburn University, Auburn, AL 36849, USA;
- Interdisciplinary Toxicology Program, University of Georgia, Athens, GA 30602, USA
| | - Brian S. Cummings
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, GA 30602, USA;
- Interdisciplinary Toxicology Program, University of Georgia, Athens, GA 30602, USA
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12
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Investigation on structural and optical properties of CuO doped CdS-Zn3(PO4)2 nanocomposite for optoelectronic devices. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Cu2+–Mn2+-Co-doped CdO nanocrystallites: comprehensive research on phase, morphology and optoelectronic properties. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04202-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Abadi MRK, Feizbakhsh A, Ahmad Panahi H, Konoz E. Photodegradation of Antibiotic by Un-doped and Cu2+ Doped ZnS Quantum Dots/MWCNTs: Structural, Optical, Photoluminescence Studies. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01138-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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15
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Zhang HM, Yan C, Zhu QS. Theoretical investigation on the optical and EPR spectra for Cu 2+ -doped ZnO-CdS nanocomposites. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2018; 57:144-148. [PMID: 30520108 DOI: 10.1002/mrc.4813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/01/2018] [Accepted: 11/29/2018] [Indexed: 06/09/2023]
Abstract
The three optical absorption bands and EPR parameters of the [CuO6 ]10- center in the ZnO-CdS composite nanopowders are theoretically studied from the perturbation formulas based on the cluster approach. In the formulas, the contributions to EPR parameters arising from the ligand orbital and spin-orbit coupling interactions via covalence effect are considered. For the studied [CuO6 ]10- cluster, the Cu-O bond lengths are suggested to show a relative elongation ratio ρ (≈ 4.1%) along the z-axis due to Jahn-Teller effect. The defect models suggested in this work are different from the previous assumption that the impurity Cu2+ can replace the host Zn2+ site when it enters the lattices of the ΖnO and ΖnS nanocrystals, forming the tetrahedral [CuΧ4 ]6- clusters (Χ = O, S). The validity of the proposed model is discussed. The differences between the present calculations and the previous ones for the interstitial Cu2+ center in ZnO nanocrystals are analyzed in view of the dissimilar impurity behaviors due to the new composition CdS and distinct preparation conditions.
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Affiliation(s)
- H M Zhang
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang, China
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
| | - C Yan
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang, China
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
| | - Q S Zhu
- Jiangxi Engineering Laboratory for Optoelectronics Testing Technology, Nanchang Hangkong University, Nanchang, China
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, China
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Kuang MQ, Yuan HK, Kuang AL, Chen H, Wang LD, Duan SK. Study on the local structure and EPR spectroscopy of compressed CuX 4 (X = N, S, Cl and Br) tetrahedral cluster. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1334972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Min-Quan Kuang
- School of Physical Science and Technology, Southwest University, Chongqing, China
| | - Hong-Kuan Yuan
- School of Physical Science and Technology, Southwest University, Chongqing, China
| | - An-Long Kuang
- School of Physical Science and Technology, Southwest University, Chongqing, China
| | - Hong Chen
- School of Physical Science and Technology, Southwest University, Chongqing, China
| | - Li-Dan Wang
- College of Electronic and Information Engineering, Southwest University, Chongqing, China
| | - Shu-Kai Duan
- College of Electronic and Information Engineering, Southwest University, Chongqing, China
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17
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Prasannalakshmi P, Shanmugam N. Photocatalytic decolourization of brilliant green and methylene blue by TiO2/CdS nanorods. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3522-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Maleki M, Haghighi M. Sono-dispersion of CuS-CdS over TiO 2 in one-pot hydrothermal reactor as visible-light-driven nanostructured photocatalyst. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.08.036] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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19
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Rezayi T, Entezari MH. Toward a durable superhydrophobic aluminum surface by etching and ZnO nanoparticle deposition. J Colloid Interface Sci 2016; 463:37-45. [DOI: 10.1016/j.jcis.2015.10.029] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/11/2015] [Accepted: 10/13/2015] [Indexed: 11/29/2022]
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Sundeep D, Gopala Krishna A, Ravikumar RVSSN, Vijaya Kumar T, Daniel Ephraim S, Pavan YL. Spectral characterization of mechanically synthesized MoO3-CuO nanocomposite. INTERNATIONAL NANO LETTERS 2016. [DOI: 10.1007/s40089-015-0178-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Fakhri A, Pourmand M, Khakpour R, Behrouz S. Structural, optical, photoluminescence and antibacterial properties of copper-doped silver sulfide nanoparticles. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 149:78-83. [PMID: 26048527 DOI: 10.1016/j.jphotobiol.2015.05.013] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/22/2015] [Accepted: 05/25/2015] [Indexed: 10/23/2022]
Abstract
The Ag2S and Cu doped Ag2S nanoparticles were prepared by simple chemical co-precipitation method and characterized by XRD, SEM, EDX, TEM, PL and UV-vis spectra. The photocatalytic activity of Ag2S and Cu doped Ag2S nanoparticles were investigated with Ofloxacin antibiotic, which is part of the fluoroquinolone family. The morphological study indicated that the products were spherical shape in with diameter size of 30nm. The photocatalytic results demonstrated that the Cu doping increased the photocatalytic efficiency of Ag2S nanoparticles. The outcome of antibacterial experiment under visible light irradiation indicate that the Cu doped Ag2S nanoparticles represent increased antibacterial performance compared with un-doped Ag2S nanoparticles.
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Affiliation(s)
- Ali Fakhri
- Young Researchers and Elites Club, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Melika Pourmand
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Reza Khakpour
- Department of Physics, Tehran North Branch, Islamic Azad University, Tehran, Iran
| | - Sajjad Behrouz
- Department of Biology, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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