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Mohite SV, Kim S, Bae J, J Jeong H, Kim TW, Choi J, Kim Y. Defects Healing of the ZnO Surface by Filling with Au Atom Catalysts for Efficient Photocatalytic H 2 Production. Small 2024; 20:e2304393. [PMID: 37712098 DOI: 10.1002/smll.202304393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/28/2023] [Indexed: 09/16/2023]
Abstract
Healed defects on photocatalysts surface and their interaction with plasmonic nanoparticles (NPs) have attracted attention in H2 production process. In this study, surface oxygen vacancy (Vo ) defects are created on ZnO (Vo -ZnO) NPs by directly pyrolyzing zeolitic imidazolate framework. The surface defects on Vo -ZnO provide active sites for the diffusion of single Au atoms and as nucleation sites for the formation of Au NPs by the in situ photodeposition process. The electronically healed surface defects by single Au atoms help in the formation of a heterojunction between the ZnO and plasmonic Au NPs. The formed Au/Vo -Au:ZnO-4 heterojunction prolongs photoelectron lifetimes and increases donor charge density. Therefore, the optimized photocatalysts of Au/Vo -Au:ZnO-4 has 21.28 times higher H2 production rate than the pristine Vo -ZnO under UV-visible light in 0.35 m Na2 SO4 and 0.25 m Na2 SO3 . However in 0.35 m Na2 S and 0.25 m Na2 SO3 , the H2 production rate is 25.84 mmole h-1 g-1 . Furthermore, Au/Vo -Au:ZnO-4 shows visible light activity by generating hot carries via induced surface plasmonic effects. It has 48.58 times higher H2 production rate than pristine Vo -ZnO. Therefore, this study infers new insight for defect healing mediated preparation of Au/Vo -Au:ZnO heterojunction for efficient photocatalytic H2 production.
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Affiliation(s)
- Santosh V Mohite
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Shinik Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
- Department of Chemistry, College of Natural Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jiyoung Bae
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Hee J Jeong
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Tae Woong Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
| | - Jihoon Choi
- Department of Materials Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Yeonho Kim
- Department of Applied Chemistry, Konkuk University, Chungju, 27478, Republic of Korea
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Yu J, Yang Y, Sun F, Chen J. Research status and prospect of nano silver (Ag)-modified photocatalytic materials for degradation of organic pollutants. Environ Sci Pollut Res Int 2024; 31:191-214. [PMID: 38049687 DOI: 10.1007/s11356-023-31166-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/17/2023] [Indexed: 12/06/2023]
Abstract
Nano silver (Ag) was metallic Ag monomers with particle size to the nanoscale. Photocatalyst was a kind of semiconductor material with photocatalytic function. Loading precious metal Ag onto semiconductor surfaces by microwave, laser-induced, solvent-thermal and hydrothermal methods could capture photogenerated electrons, reduced the compounding rate of holes and photogenerated electrons during the photocatalytic process, thereby improving the electron transfer efficiency of photocatalysis and enhancing the absorption of visible light by silver nanoparticles through the plasma resonance effect. The highly reactive free radicals produced by photocatalysts were used in the organic degradation process to degrade organic matter into inorganic matter and was a faster, more efficient and less polluting method of pollutant degradation, which has attracted a lot of attention from researchers. This review discussed the modification of various types of photocatalysts by nano Ag through different methods. The photocatalytic degradation of dyes, antibiotics and persistent organic pollutants by different modified composites was also analyzed. This review covered the several ways and means in which nano Ag has modified diverse photocatalytic materials as well as the photocatalytic degradation of dyes, antibiotics and persistent organic pollutants. This review identified the drawbacks of the existing nano Ag-modified photocatalytic materials, including their low yield and lack of recyclability, and it also offered suggestions for potential future directions for their improvement. The purpose of this review was to further research on the technology of nano Ag-modified photocatalytic materials and to encourage the creation of new modified photocatalytic nanomaterials for the treatment of organic pollutant degradation.
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Affiliation(s)
- Jingjing Yu
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Yuewei Yang
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Fengfei Sun
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Junfeng Chen
- School of Life Sciences, Qufu Normal University, Qufu, 273165, People's Republic of China.
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Alhoqail WA, Alothaim AS, Suhail M, Iqbal D, Kamal M, Asmari MM, Jamal A. Husk-like Zinc Oxide Nanoparticles Induce Apoptosis through ROS Generation in Epidermoid Carcinoma Cells: Effect of Incubation Period on Sol-Gel Synthesis and Anti-Cancerous Properties. Biomedicines 2023; 11. [PMID: 36830857 DOI: 10.3390/biomedicines11020320] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/26/2023] Open
Abstract
This study effectively reports the influence of experimental incubation period on the sol-gel production of husk-like zinc oxide nanoparticles (ZNPs) and their anti-cancerous abilities. The surface morphology of ZNPs was studied with the help of SEM. With the use of TEM, the diameter range of the ZNPs was estimated to be ~86 and ~231 nm for ZNPA and ZNPB, prepared by incubating zinc oxide for 2 and 10 weeks, respectively. The X-ray diffraction (XRD) investigation showed that ZNPs had a pure wurtzite crystal structure. On prolonging the experimental incubation, a relative drop in aspect ratio was observed, displaying a distinct blue-shift in the UV-visible spectrum. Furthermore, RBC lysis assay results concluded that ZNPA and ZNPB both demonstrated innoxious nature. As indicated by MTT assay, reactive oxygen species (ROS) release, and chromatin condensation investigations against the human epidermoid carcinoma (HEC) A431 cells, ZNPB demonstrated viable relevance to chemotherapy. Compared to ZNPB, ZNPA had a slightly lower IC50 against A431 cells due to its small size. This study conclusively describes a simple, affordable method to produce ZNP nano-formulations that display significant cytotoxicity against the skin cancer cell line A431, suggesting that ZNPs may be useful in the treatment of cancer.
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Castelló Lux K, Hot J, Fau P, Bertron A, Kahn ML, Ringot E, Fajerwerg K. Nano-gold decorated ZnO: an alternative photocatalyst promising for NOx degradation. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Jayswal S, Moirangthem RS. Fabrication of hierarchical hybrid ZnO/Au micro-/nanostructures for efficient dye degradation: role of gold nanostructures in photophysical process. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bruno L, Strano V, Scuderi M, Franzò G, Priolo F, Mirabella S. Localized Energy Band Bending in ZnO Nanorods Decorated with Au Nanoparticles. Nanomaterials (Basel) 2021; 11:2718. [PMID: 34685157 DOI: 10.3390/nano11102718] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/05/2021] [Accepted: 10/12/2021] [Indexed: 11/25/2022]
Abstract
Surface decoration by means of metal nanostructures is an effective way to locally modify the electronic properties of materials. The decoration of ZnO nanorods by means of Au nanoparticles was experimentally investigated and modelled in terms of energy band bending. ZnO nanorods were synthesized by chemical bath deposition. Decoration with Au nanoparticles was achieved by immersion in a colloidal solution obtained through the modified Turkevich method. The surface of ZnO nanorods was quantitatively investigated by Scanning Electron Microscopy, Transmission Electron Microscopy and Rutherford Backscattering Spectrometry. The Photoluminescence and Cathodoluminescence of bare and decorated ZnO nanorods were investigated, as well as the band bending through Mott–Schottky electrochemical analyses. Decoration with Au nanoparticles induced a 10 times reduction in free electrons below the surface of ZnO, together with a decrease in UV luminescence and an increase in visible-UV intensity ratio. The effect of decoration was modelled with a nano-Schottky junction at ZnO surface below the Au nanoparticle with a Multiphysics approach. An extensive electric field with a specific halo effect formed beneath the metal–semiconductor interface. ZnO nanorod decoration with Au nanoparticles was shown to be a versatile method to tailor the electronic properties at the semiconductor surface.
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Jalili-Jahani N, Rabbani F, Fatehi A, Musavi Haghighi T. Rapid one-pot synthesis of Ag-decorated ZnO nanoflowers for photocatalytic degradation of tetracycline and product analysis by LC/APCI-MS and direct probe ESI-MS. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.06.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Plesco I, Ciobanu V, Braniste T, Ursaki V, Rasch F, Sarua A, Raevschi S, Adelung R, Dutta J, Tiginyanu I. Highly Porous and Ultra-Lightweight Aero-Ga 2O 3: Enhancement of Photocatalytic Activity by Noble Metals. Materials (Basel) 2021; 14:1985. [PMID: 33921020 PMCID: PMC8071440 DOI: 10.3390/ma14081985] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 04/07/2021] [Accepted: 04/12/2021] [Indexed: 01/09/2023]
Abstract
A new type of photocatalyst is proposed on the basis of aero-β-Ga2O3, which is a material constructed from a network of interconnected tetrapods with arms in the form of microtubes with nanometric walls. The aero-Ga2O3 material is obtained by annealing of aero-GaN fabricated by epitaxial growth on ZnO microtetrapods. The hybrid structures composed of aero-Ga2O3 functionalized with Au or Pt nanodots were tested for the photocatalytic degradation of methylene blue dye under UV or visible light illumination. The functionalization of aero-Ga2O3 with noble metals results in the enhancement of the photocatalytic performances of bare material, reaching the performances inherent to ZnO while gaining the advantage of the increased chemical stability. The mechanisms of enhancement of the photocatalytic properties by activating aero-Ga2O3 with noble metals are discussed to elucidate their potential for environmental applications.
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Affiliation(s)
- Irina Plesco
- National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare Av. 168, MD-2004 Chisinau, Moldova; (V.C.); (T.B.); (V.U.)
| | - Vladimir Ciobanu
- National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare Av. 168, MD-2004 Chisinau, Moldova; (V.C.); (T.B.); (V.U.)
| | - Tudor Braniste
- National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare Av. 168, MD-2004 Chisinau, Moldova; (V.C.); (T.B.); (V.U.)
| | - Veaceslav Ursaki
- National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare Av. 168, MD-2004 Chisinau, Moldova; (V.C.); (T.B.); (V.U.)
| | - Florian Rasch
- Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiser Str. 2, 24143 Kiel, Germany; (F.R.); (R.A.)
| | - Andrei Sarua
- H. H. Wills Physics Laboratory, School of Physics, University of Bristol, Tyndall Avenue, Bristol BS8 1TL, UK;
| | - Simion Raevschi
- Department of Physics and Engineering, State University of Moldova, Alexei Mateevici Str. 60, MD-2009 Chisinau, Moldova;
| | - Rainer Adelung
- Functional Nanomaterials, Institute for Materials Science, Kiel University, Kaiser Str. 2, 24143 Kiel, Germany; (F.R.); (R.A.)
| | - Joydeep Dutta
- Functional Materials Group, Applied Physics Department, School of Engineering Sciences, KTH Royal Institute of Technology, Hannes Alfvéns väg 12, 11419 Stockholm, Sweden;
| | - Ion Tiginyanu
- National Center for Materials Study and Testing, Technical University of Moldova, Stefan cel Mare Av. 168, MD-2004 Chisinau, Moldova; (V.C.); (T.B.); (V.U.)
- Academy of Sciences of Moldova, Stefan cel Mare Av. 1, MD-2001 Chisinau, Moldova
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Kuznetsov VN, Glazkova NI, Mikhaylov RV, Kozhevina AV, Serpone N. Photophysics of color centers in visible-light-active rutile titania. Evidence of the photoformation and trapping of charge carriers from advanced diffuse reflectance spectroscopy and mass spectrometry. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.09.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Shahine I, Jradi S, Beydoun N, Gaumet J, Akil S. Plasmon‐Enhanced Photoluminescence and Photocatalysis Reactions in Metal‐Semiconductor Nanomaterials: UV‐Generated Hot Electron in Gold‐Zinc Oxide. CHEMPHOTOCHEM 2019. [DOI: 10.1002/cptc.201900252] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Issraa Shahine
- LCP−A2MC, Institut Jean BarriolUniversité de Lorraine 1 Boulevard Arago 57070 Metz France
| | - Safi Jradi
- L2n, Lumière, Nanomatériaux, Nanotechnologies ICD, CNRSUniversité de Technologie de Troyes 12 Rue Marie-Curie 10004 Troyes France
| | - Nour Beydoun
- L2n, Lumière, Nanomatériaux, Nanotechnologies ICD, CNRSUniversité de Technologie de Troyes 12 Rue Marie-Curie 10004 Troyes France
| | - Jean‐Jacques Gaumet
- LCP−A2MC, Institut Jean BarriolUniversité de Lorraine 1 Boulevard Arago 57070 Metz France
| | - Suzanna Akil
- LCP−A2MC, Institut Jean BarriolUniversité de Lorraine 1 Boulevard Arago 57070 Metz France
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12
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Wolski L, Walkowiak A, Ziolek M. Formation of reactive oxygen species upon interaction of Au/ZnO with H2O2 and their activity in methylene blue degradation. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.04.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Yang H, Zhang S, Li M, Liu X, Han J, Zhu X, Ge Q, Wang H. Hollow Au-ZnO/CN Nanocages Derived from ZIF-8 for Efficient Visible-Light-Driven Hydrogen Evolution from Formaldehyde Alkaline Solution. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900313] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Hongchen Yang
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Shengbo Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Mei Li
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Xiao Liu
- College of Chemistry; Central China Normal University; 430079 Wuhan China
| | - Jinyu Han
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Xinli Zhu
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
| | - Qingfeng Ge
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
- Department of Chemistry and Biochemistry; Southern Illinois University; 62901 Carbondale IL United States
| | - Hua Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education; Collaborative Innovation Center of Chemical Science and Engineering; School of Chemical Engineering and Technology; Tianjin University; 300072 Tianjin China
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14
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Raji R, Gopchandran KG. Plasmonic photocatalytic activity of ZnO:Au nanostructures: Tailoring the plasmon absorption and interfacial charge transfer mechanism. J Hazard Mater 2019; 368:345-357. [PMID: 30685723 DOI: 10.1016/j.jhazmat.2019.01.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
ZnO:Au nanostructures with tunable surface Plasmon band were synthesizedvia co-precipitation method. X-ray diffraction analysis, high resolution transmission electron microscopy and Raman spectra confirmed the hexagonal wurtzite phase for these ZnO:Au nanostructures with preferential growth along the (101) plane. The selective enhancement in the intensity of Raman band due to the excited free electrons of Au nanoparticles confirmed the incorporation of Au in ZnO matrix. Scanning electron microscopic images showed the transformation of morphology of these nanostructures from rod geometry to rose flower and then to marigold flower-like structures with increase in the Au content. Detailed investigations were carried out to understand the role of plasmons present in the ZnO:Au nanostructures on the photocatalytic degradation of sulforhodamine B under sunlight. It is found that ZnO:Au nanostructures with plasmon band in the close approximation of solar maximum ˜550 nm as catalysts exhibit ultra-fast degradation of the dye. This highly efficient photocatalytic activity of these nanostructures is attributed to the electron scavenging action of Au due to its high electronegativity, enhanced absorption of sunlight due to plasmons, the enhanced surface area of ZnO:Au nanostructures and the formation of Schottky barrier between the Au and ZnO interface. The reusability and photostability of these catalysts were tested through repetitive cycles and demonstrated that these nanostructures can form excellent reusable photocatalysts for the degradation of toxic organic waste in water.
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Affiliation(s)
- R Raji
- Department of Optoelectronics, University of Kerala, Thiruvananthapuram 695581, India
| | - K G Gopchandran
- Department of Optoelectronics, University of Kerala, Thiruvananthapuram 695581, India.
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15
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Sreedhar A, Neelakanta Reddy I, Ta QTH, Namgung G, Noh JS. Plasmonic Ag nanowires sensitized ZnO flake-like structures as a potential photoanode material for enhanced visible light water splitting activity. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.11.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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16
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Li JM, Wang YT, Hsu YJ. A more accurate, reliable method to evaluate the photoelectrochemical performance of semiconductor electrode without under/over estimation. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.02.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Sheu FJ, Cho CP. High Efficiency for Hydrogen Evolution and Bacterial Inactivation of Ag-TiO2
-Graphene Ternary Nanocomposites with Appropriate Ag Ratios. ChemistrySelect 2018. [DOI: 10.1002/slct.201702430] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fu-Jye Sheu
- Department of Applied Materials and Optoelectronic Engineering; National Chi Nan University; Nantou County 54561 Taiwan Republic of China
| | - Chun-Pei Cho
- Department of Applied Materials and Optoelectronic Engineering; National Chi Nan University; Nantou County 54561 Taiwan Republic of China
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18
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Abstract
This review summarizes the inherent functionality of bulk, surface and interface defects, and their contributions towards mediating electron–hole separation in semiconductor photocatalysis.
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Affiliation(s)
- Wei Zhou
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- P. R. China
| | - Honggang Fu
- Key Laboratory of Functional Inorganic Material Chemistry
- Ministry of Education of the People's Republic of China
- Heilongjiang University
- Harbin 150080
- P. R. China
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Sawant SY, Kim JY, Han TH, Ansari SA, Cho MH. Electrochemically active biofilm-assisted biogenic synthesis of an Ag-decorated ZnO@C core–shell ternary plasmonic photocatalyst with enhanced visible-photocatalytic activity. NEW J CHEM 2018. [DOI: 10.1039/c7nj03936k] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An Ag–ZnO@C core–shell ternary photocatalyst was synthesized via a bio-catalytic route for photocatalytic degradation of RhB and 4-NP under visible light.
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Affiliation(s)
- Sandesh Y. Sawant
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan-si
- South Korea
| | - Jae Yeol Kim
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan-si
- South Korea
| | - Thi Hiep Han
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan-si
- South Korea
| | - Sajid Ali Ansari
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan-si
- South Korea
- Department of Energy and Materials Engineering
| | - Moo Hwan Cho
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan-si
- South Korea
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Dule M, Biswas M, Biswas Y, Mandal TK. Redox-active poly(ionic liquid)-engineered Ag nanoparticle-decorated ZnO nanoflower heterostructure: A reusable composite catalyst for photopolymerization into high-molecular-weight polymers. POLYMER 2017; 133:223-31. [DOI: 10.1016/j.polymer.2017.11.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Alsharaeh EH, Bora T, Soliman A, Ahmed F, Bharath G, Ghoniem MG, Abu-salah KM, Dutta J. Sol-Gel-Assisted Microwave-Derived Synthesis of Anatase Ag/TiO2/GO Nanohybrids toward Efficient Visible Light Phenol Degradation. Catalysts 2017; 7:133. [DOI: 10.3390/catal7050133] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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22
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Bora T, Sathe P, Laxman K, Dobretsov S, Dutta J. Defect engineered visible light active ZnO nanorods for photocatalytic treatment of water. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.09.014] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Kaur G, D. P, Kumar M, Thakur A, Bala R, Kumar A. Electrochemical aspects of photocatalysis: Au@FeS2 nanocomposite for removal of industrial pollutant. Phys Chem Chem Phys 2017; 19:32412-32420. [DOI: 10.1039/c7cp06289c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A wide range of endeavors have been dedicated to building up an impetus in the field of catalysis to enhance the removal of toxic contaminants from water.
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Affiliation(s)
- Gurpreet Kaur
- Advanced Functional Materials Laboratory
- Department of Nanotechnology
- Sri Guru Granth Sahib World University
- Fatehgarh Sahib-140 406
- India
| | - Pooja D.
- CSIR-Central Scientific Instruments Organisation
- Chandigarh-160 030
- India
| | - Manjeet Kumar
- Department of Electrical Engineering
- Incheon National University
- South Korea
| | - Anup Thakur
- Department of Basic and Applied Sciences
- Punjabi University
- Patiala-147 002
- India
| | - Rajni Bala
- Department of Mathematics
- Punjabi University
- Pataila-147 002
- India
| | - Akshay Kumar
- Advanced Functional Materials Laboratory
- Department of Nanotechnology
- Sri Guru Granth Sahib World University
- Fatehgarh Sahib-140 406
- India
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Bora T, Zoepfl D, Dutta J. Importance of Plasmonic Heating on Visible Light Driven Photocatalysis of Gold Nanoparticle Decorated Zinc Oxide Nanorods. Sci Rep 2016; 6:26913. [PMID: 27242172 DOI: 10.1038/srep26913] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 05/11/2016] [Indexed: 12/22/2022] Open
Abstract
Herein we explore the role of localized plasmonic heat generated by resonantly excited gold (Au) NPs on visible light driven photocatalysis process. Au NPs are deposited on the surface of vertically aligned zinc oxide nanorods (ZnO NRs). The localized heat generated by Au NPs under 532 nm continuous laser excitation (SPR excitation) was experimentally probed using Raman spectroscopy by following the phonon modes of ZnO. Under the resonant excitation the temperature at the surface of the Au-ZnO NRs reaches up to about 300 °C, resulting in almost 6 times higher apparent quantum yield (AQY) for photocatalytic degradation of methylene blue (MB) compared to the bare ZnO NRs. Under solar light irradiation the Au-ZnO NRs demonstrated visible light photocatalytic activity twice that of what was achieved with bare ZnO NRs, while significantly reduced the activation energy required for the photocatalytic reactions allowing the reactions to occur at a faster rate.
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