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Budi S, Takahashi M, Sutrisno MG, Adi WA, Fairuza Z, Kurniawan B, Maenosono S, Umar AA. Phases evolution and photocatalytic activity of Cu 2O films electrodeposited from a non-pH-adjusted solution. ROYAL SOCIETY OPEN SCIENCE 2023; 10:230247. [PMID: 37351492 PMCID: PMC10282578 DOI: 10.1098/rsos.230247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 06/02/2023] [Indexed: 06/24/2023]
Abstract
A pure-phase Cu2O film photocatalyst was successfully prepared by the electrodeposition technique from a non-pH-adjusted solution. To investigate the phase evolution and photocatalytic activity of the film, the electrodeposition was conducted at different deposition temperatures. Photocatalytic activity of the films was evaluated from methylene blue (MB) dye degradation. The Cu2O phase initially appeared at room temperature and its fraction was found to increase with increasing the deposition temperature, while the impurity phase was successfully diminished. A pure Cu2O film with a narrow optical bandgap energy of 1.96 eV was obtained at 75°C. The multi-faceted crystals were found to form at 45°C and became a truncated octahedral structure that possessed {111} and {100} facets as deposition temperature further increased. A preferred orientation growth of {110} facet, which is known to possess a relatively high surface energy, was produced at 75°C. The performance of MB photodegradation enhanced gradually by increasing the deposition temperature. The increase of photocatalytic activity could be attributed to the rise of photoelectrochemical response and the decrease of resistance charge transfer because of narrowing bandgap energy, increasing Cu2O fraction, and growing a relatively high catalytic activity facet which had escalated redox reaction that decomposed MB at the photocatalyst-solution interface.
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Affiliation(s)
- Setia Budi
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta Timur 13220, Indonesia
| | - Mari Takahashi
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Mega Gladiani Sutrisno
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta Timur 13220, Indonesia
- Centre for Science and Technology of Advanced Materials, National Nuclear Energy Agency, Kawasan Puspiptek Serpong, Tangerang Selatan, Banten, Indonesia
| | - Wisnu Ari Adi
- The Centre for Science Innovation, Jakarta 13120, Indonesia
| | - Zahra Fairuza
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta Timur 13220, Indonesia
| | - Budhy Kurniawan
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia
| | - Shinya Maenosono
- School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan
| | - Akrajas Ali Umar
- Institute of Microengineering dan Nanoelectronics, Universiti Kebangsaan Malaysia, Selangor 43600, Malaysia
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Amina M, Al Musayeib NM, Alterary S, F. El-Tohamy M, A. Alhwaiti S. Advanced polymeric metal/metal oxide bionanocomposite using seaweed Laurencia dendroidea extract for antiprotozoal, anticancer, and photocatalytic applications. PeerJ 2023; 11:e15004. [PMID: 36967991 PMCID: PMC10035428 DOI: 10.7717/peerj.15004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 02/14/2023] [Indexed: 03/29/2023] Open
Abstract
Background Biosynthesized nanoparticles are gaining popularity due to their distinctive biological applications as well as bioactive secondary metabolites from natural products that contribute in green synthesis. Methodology This study reports a facile, ecofriendly, reliable, and cost-effective synthesis of silver nanoparticles (AgNPs), copper oxide nanoparticles (CuONPs), and polymeric PVP-silver-copper oxide nanocomposite using ethanol extract of seaweed Laurencia dendroidea and were evaluated for antiprotozoal, anticancer and photocatalytic potential. The nanostructures of the AgNPs, CuONPs, and polymeric PVP-Ag-CuO nanocomposite were confirmed by different spectroscopic and microscopic procedures. Results The UV-vis spectrum displayed distinct absorption peaks at 440, 350, and 470 nm for AgNPs, CuONPs, and polymeric Ag-CuO nanocomposite, respectively. The average particles size of the formed AgNPs, CuONPs, and Ag-CuO nanocomposite was 25, 28, and 30 nm, respectively with zeta potential values -31.7 ± 0.6 mV, -17.6 ± 4.2 mV, and -22.9 ± 4.45 mV. The microscopic investigation of biosynthesized nanomaterials revealed a spherical morphological shape with average crystallite sizes of 17.56 nm (AgNPs), 18.21 nm (CuONPs), and 25.46 nm (PVP-Ag-CuO nanocomposite). The antiprotozoal potential of green synthesized nanomaterials was examined against Leishmania amazonensis and Trypanosoma cruzi parasites. The polymeric PVP-Ag-CuO nanocomposite exerted the highest antiprotozoal effect with IC50 values of 17.32 ± 1.5 and 17.48 ± 4.2 µM, in contrast to AgNPs and CuONPs. The anticancer potential of AgNPs, CuONPs, and polymeric PVP-Ag-CuO nanocomposite against HepG2 cancer cell lines revealed that all the nanomaterials were effective and the highest anticancer potential was displayed by PVP-Ag-CuO nanocomposite with IC50 values 91.34 µg mL-1 at 200 µg mL-1 concentration. Additionally, PVP-Ag-CuO nanocomposite showed strong photocatalytic effect. Conclusion Overall, this study suggested that the biogenic synthesized nanomaterials AgNPs, CuONPs, and polymeric PVP-Ag-CuO nanocomposite using ethanol extract of seaweed L. dendroidea possesses promising antiprotozoal anticancer and photocatalytic effect and could be further exploited for the development of antiprotozoal and anticancer therapeutics agents.
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Affiliation(s)
- Musarat Amina
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Nawal M. Al Musayeib
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Seham Alterary
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Maha F. El-Tohamy
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Samira A. Alhwaiti
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
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Živković A, Mallia G, King HE, de Leeuw NH, Harrison NM. Mind the Interface Gap: Exposing Hidden Interface Defects at the Epitaxial Heterostructure between CuO and Cu 2O. ACS APPLIED MATERIALS & INTERFACES 2022; 14:56331-56343. [PMID: 36480491 PMCID: PMC9782378 DOI: 10.1021/acsami.2c16889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Well designed and optimized epitaxial heterostructures lie at the foundation of materials development for photovoltaic, photocatalytic, and photoelectrochemistry applications. Heterostructure materials offer tunable control over charge separation and transport at the same time preventing recombination of photogenerated excitations at the interface. Thus, it is of paramount importance that a detailed understanding is developed as the basis for further optimization strategies and design. Oxides of copper are nontoxic, low cost, abundant materials with a straightforward and stable manufacturing process. However, in individual applications, they suffer from inefficient charge transport of photogenerated carriers. Hence, in this work, we investigate the role of the interface between epitaxially aligned CuO and Cu2O to explore the potential benefits of such an architecture for more efficient electron and hole transfer. The CuO/Cu2O heterojunction nature, stability, bonding mechanism, interface dipole, electronic structure, and band bending were rationalized using hybrid density functional theory calculations. New electronic states are identified at the interface itself, which are originating neither from lattice mismatch nor strained Cu-O bonds. They form as a result of a change in coordination environment of CuO surface Cu2+ cations and an electron transfer across the interface Cu1+-O bond. The first process creates occupied defect-like electronic states above the valence band, while the second leaves hole states below the conduction band. These are constitutional to the interface and are highly likely to contribute to recombination effects competing with the improved charged separation from the suitable band bending and alignment and thus would limit the expected output photocurrent and photovoltage. Finally, a favorable effect of interstitial oxygen defects has been shown to allow for band gap tunability at the interface but only to the point of the integral geometrical contact limit of the heterostructure itself.
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Affiliation(s)
- Aleksandar Živković
- Department
of Earth Sciences, Utrecht University, Princetonlaan 8a, 3584CBUtrecht, The Netherlands
- Department
of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, LondonW12 0BZ, United Kingdom
| | - Giuseppe Mallia
- Department
of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, LondonW12 0BZ, United Kingdom
| | - Helen E. King
- Department
of Earth Sciences, Utrecht University, Princetonlaan 8a, 3584CBUtrecht, The Netherlands
| | - Nora H. de Leeuw
- Department
of Earth Sciences, Utrecht University, Princetonlaan 8a, 3584CBUtrecht, The Netherlands
| | - Nicholas M. Harrison
- Department
of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, LondonW12 0BZ, United Kingdom
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Vetrimani A, Geetha K, Angel Jemima E, Arulnathan N, Kim HS, Kathalingam A. Effect of the green synthesis of CuO plate-like nanoparticles on their photodegradation and antibacterial activities. Phys Chem Chem Phys 2022; 24:28923-28933. [PMID: 36416292 DOI: 10.1039/d2cp03531f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Green synthesis of copper oxide nanoparticles and its effects on photocatalytic dye degradation and antibacterial activities are reported. The synthesis of nanoparticles by green routes provides many advantages over chemical routes, including simplicity, cost-effectiveness, and fast processing route without using any costly or harmful chemicals. Tridax procumbense (coat buttons) plant root extract was used to synthesize copper oxide nanoparticles. The synthesized Tridax procumbense-copper oxide nanoparticles (TP-CuO NPs) were characterized by UV-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), dynamic light scattering spectroscopy (DLS), and X-ray diffraction (XRD) techniques. The synthesized TP-CuO NPs were applied for photocatalytic dye degradation and antibacterial activity studies. The TP-CuO NPs exhibited a maximum antibacterial activity at 500 μg mL-1 concentration against Staphylococcus aureus and E. coli showing inhibition zones of 7.5 mm and 7.2 mm, respectively. The photocatalytic ability of the TP-CuO was also tested against the textile dye Trypan blue (TB), and showed about 55% degradation after 48 h for 500 μg mL-1 CuO NP concentration, showing a concentration-dependent degradation efficiency. This is the first work on TP-derived CuO nanoparticles and their photocatalytic and antimicrobial applications. Overall, this study supports the superiority of green-synthesized TP-CuO NPs as photocatalytic and antimicrobial agents.
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Affiliation(s)
- A Vetrimani
- Nanotechnology Division, Department of Biotechnology, Periyar Maniammai Institute of Science and Technology, Vallam, Thanjavur, Tamil Nadu, India
| | - K Geetha
- Nanotechnology Division, Department of Biotechnology, Periyar Maniammai Institute of Science and Technology, Vallam, Thanjavur, Tamil Nadu, India
| | - E Angel Jemima
- Trichy Research Institute of Biotechnology Private Limited, Tiruchirappalli, Tamil Nadu, India
| | - N Arulnathan
- Department of Animal Nutrition, Veterinary College and Research Institute, Tirunelveli, Tamil Nadu, India
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - A Kathalingam
- Millimeter-wave Innovation Technology (MINT) Research Center, Dongguk University-Seoul, Seoul, 04620, Republic of Korea.
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Arivazhagan M, Maduraiveeran G. Gold dispersed hierarchical flower-like copper oxide microelectrodes for the sensitive detection of glucose and lactic acid in human serum and urine. Biomater Sci 2022; 10:4538-4548. [DOI: 10.1039/d2bm00527a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report self-supported gold dispersed copper oxide microflowers (Au@CuO MFs) on copper microelectrodes (CME) as a sensitive platform for the sensing of glucose and lactic acid in human serum...
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Periyayya U, Madhu D, Subramaniyam K, Son H, Lee IH. Enhanced cyclic performance initiated via an in situ transformation of Cu/CuO nanodisk to Cu/CuO/Cu 2O nanosponge. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:6459-6469. [PMID: 32996093 DOI: 10.1007/s11356-020-10910-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/17/2020] [Indexed: 06/11/2023]
Abstract
A simple oxidation method for preparing CuO nanodisks on a flexible Cu sheet is presented. The crystal structure of as-prepared CuO nanodisks was analyzed by X-ray diffraction. The elemental composition and surface morphology were documented by X-ray photoelectron spectroscopy, scanning, and transmission electron microscopy. The photocatalytic performance of flexible Cu/CuO nanodisks was tested to mediate the degradation of RhB and MB dyes. After 2nd recycling, an in situ transformation of the nanodisk surface leads to electron transfer between the conduction bands of Cu2O and CuO phase, accelerating the degradation of the dyes due to a more favorable electron-hole separation under different band gap engineering. The optical and electrochemical impedance analyses were conducted to examine the efficiency of photogenerated charge carrier separation. Additionally, in the photodegradation system of Cu/CuO nanodisks, the generation of superoxide radical (·O2-) is responsible for the dye degradation under daylight irradiation. The generation of the latter radical is energetically feasible since the conduction band of Cu2O (- 0.28 eV) is well-matching with the redox potential of O2/·O2- (- 0.28 eV). Consequently, it is concluded that the cyclic stability shows the usefulness of Cu/CuO nanodisk preparation for the dye degradation under daylight irradiation. Graphical abstract.
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Affiliation(s)
- Uthirakumar Periyayya
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, South Korea.
- Nanoscience Center for Optoelectronic and Energy Devices [Nano-COED], Department of Chemistry, Sona College of Technology, Salem, Tamilnadu, 636005, India.
| | - Devendiran Madhu
- Nanoscience Center for Optoelectronic and Energy Devices [Nano-COED], Department of Chemistry, Sona College of Technology, Salem, Tamilnadu, 636005, India
| | - Kalaiarasan Subramaniyam
- Nanoscience Center for Optoelectronic and Energy Devices [Nano-COED], Department of Chemistry, Sona College of Technology, Salem, Tamilnadu, 636005, India
| | - Hoki Son
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, South Korea
| | - In-Hwan Lee
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, South Korea.
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