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Sharma RK, Yadav S, Dutta S, Kale HB, Warkad IR, Zbořil R, Varma RS, Gawande MB. Silver nanomaterials: synthesis and (electro/photo) catalytic applications. Chem Soc Rev 2021; 50:11293-11380. [PMID: 34661205 DOI: 10.1039/d0cs00912a] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In view of their unique characteristics and properties, silver nanomaterials (Ag NMs) have been used not only in the field of nanomedicine but also for diverse advanced catalytic technologies. In this comprehensive review, light is shed on general synthetic approaches encompassing chemical reduction, sonochemical, microwave, and thermal treatment among the preparative methods for the syntheses of Ag-based NMs and their catalytic applications. Additionally, some of the latest innovative approaches such as continuous flow integrated with MW and other benign approaches have been emphasized that ultimately pave the way for sustainability. Moreover, the potential applications of emerging Ag NMs, including sub nanomaterials and single atoms, in the field of liquid-phase catalysis, photocatalysis, and electrocatalysis as well as a positive role of Ag NMs in catalytic reactions are meticulously summarized. The scientific interest in the synthesis and applications of Ag NMs lies in the integrated benefits of their catalytic activity, selectivity, stability, and recovery. Therefore, the rise and journey of Ag NM-based catalysts will inspire a new generation of chemists to tailor and design robust catalysts that can effectively tackle major environmental challenges and help to replace noble metals in advanced catalytic applications. This overview concludes by providing future perspectives on the research into Ag NMs in the arena of electrocatalysis and photocatalysis.
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Affiliation(s)
- Rakesh Kumar Sharma
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Sneha Yadav
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Sriparna Dutta
- Green Chemistry Network Centre, University of Delhi, New Delhi-110007, India.
| | - Hanumant B Kale
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
| | - Indrajeet R Warkad
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic.,Nanotechnology Centre, CEET, VŠB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University, Šlechtitelů 27, 779 00 Olomouc, Czech Republic.,U. S. Environmental Protection Agency, ORD, Center for Environmental Solutions and Emergency Response Water Infrastructure Division/Chemical Methods and Treatment Branch, 26 West Martin Luther King Drive, MS 483 Cincinnati, Ohio 45268, USA.
| | - Manoj B Gawande
- Department of Industrial and Engineering Chemistry, Institute of Chemical Technology, Mumbai-Marathwada Campus, Jalna-431213, Maharashtra, India.
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Gao Y, Wang T. Preparation of Ag2O/TiO2 nanocomposites by two-step method and study of its degradation of RHB. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129049] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Zia J, Riaz U. Microwave-Assisted Degradation of Paracetamol Drug Using Polythiophene-Sensitized Ag-Ag 2O Heterogeneous Photocatalyst Derived from Plant Extract. ACS OMEGA 2020; 5:16386-16394. [PMID: 32685801 PMCID: PMC7364436 DOI: 10.1021/acsomega.0c00405] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/28/2020] [Indexed: 05/29/2023]
Abstract
Ag-Ag2O nanoparticles were synthesized using Osmium sanctum plant extract. The nanoparticles were sensitized with polythiophene (PTh) and were characterized via scanning electron microscopy with energy dispersive X-ray and elemental mapping, transmission electron microscopy, X-ray diffraction (XRD), Fourier-transform infrared, and UV-vis spectroscopy analyses. The elemental mapping results revealed that the samples were composed of C, S, Ag, and O elements which were uniformly distributed in the nanohybrid. XRD analysis confirmed the crystalline nature of Ag-Ag2O nanoparticles, and the average particle size was found to be ranging between 36 and 40 nm. The optical band gap of Ag-Ag2O, PTh, and Ag-Ag2O/PTh was found to be 2.49, 1.1, 1.5, and 0.68 eV. The catalytic activity of Ag-Ag2O, PTh, and Ag-Ag2O/PTh was investigated by degrading paracetamol drug under microwave irradiation. Around 80% of degradation was achieved during 20 min irradiation. All degradation kinetics were fitted to the pseudo-first-order model. A probable degradation pathway for paracetamol degradation was proposed based on liquid chromatography mass spectrometry analysis of degraded fragments.
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Affiliation(s)
- Jannatun Zia
- Materials Research Laboratory, Department
of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Ufana Riaz
- Materials Research Laboratory, Department
of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
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Padervand M, Fasandouz FM, Beheshti A. [Cu-Ag2]O–C3N4 nanoframeworks for efficient photodegradation of wastewaters. PROGRESS IN REACTION KINETICS AND MECHANISM 2019. [DOI: 10.1177/1468678319825723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
CuO- and Ag2O-decorated g-C3N4 photocatalysts were prepared by appropriate chemical modification of carbon nitride nanosheets produced from programmed pyrolysis of urea. After comprehensive characterization by powder X-ray diffraction, diffuse reflectance spectroscopy, Fourier transform–infrared spectroscopy, scanning electron microscopy, and Brunauer–Emmett–Teller analysis methods, their photocatalytic performances were examined for the removal of Acid Blue 92 azo dye, as a typical wastewater component from the textile industry. The X-ray diffraction patterns confirmed the presence of CuO and Ag2O nanoparticles on the surface of the sheets. In addition, diffuse reflectance spectra indicated a considerable reduction of the band gap of pure C3N4 by modification. The photoreaction was discussed mechanistically and the best operational parameters were found to achieve the highest efficiency under visible light.
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Yu G, Zhang X, Sang Y, Wang Z, Hu X, Xu X, Li L, Liu H, Wang JJ. Synthesis and characterization of a coaxial carbon-TiO2 nanotube arrays film with spectral response from UV to NIR and its application in solar energy conversion. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.175] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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In-situ transformation of Bi2WO6 to highly photoreactive Bi2WO6@Bi2S3 nanoplate via ion exchange. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(17)62913-9] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Xu H, Xie J, Jia W, Wu G, Cao Y. The formation of visible light-driven Ag/Ag2O photocatalyst with excellent property of photocatalytic activity and photocorrosion inhibition. J Colloid Interface Sci 2018; 516:511-521. [DOI: 10.1016/j.jcis.2018.01.071] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/28/2017] [Accepted: 01/19/2018] [Indexed: 12/15/2022]
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8
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Cong J, Li C, Zhao T, Wu J, Zhang R, Ren W, Wang S, Gao J, Liu Y, Yao J. Coordination polymer derived cobalt embedded in nitrogen-doped carbon nanotubes for efficient electrocatalysis of oxygen evolution reaction. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.05.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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9
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Li H, Chen T, Wang Y, Tang J, Wang Y, Sang Y, Liu H. Surface-sulfurized Ag2O nanoparticles with stable full-solar-spectrum photocatalytic activity. CHINESE JOURNAL OF CATALYSIS 2017. [DOI: 10.1016/s1872-2067(17)62806-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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10
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Masoud M, Nourbakhsh A, Hassanzadeh-Tabrizi SA. Influence of modified CNT-Ag nanocomposite addition on photocatalytic degradation of methyl orange by mesoporous TiO2. INORG NANO-MET CHEM 2017. [DOI: 10.1080/24701556.2017.1284106] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mahsa Masoud
- Department of Materials Engineering, Advanced Materials Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
| | - Amirabbas Nourbakhsh
- Department of Materials Science and Engineering, Shahreza Branch, Islamic Azad University, Shahreza, Iran
| | - Seyed Ali Hassanzadeh-Tabrizi
- Department of Materials Engineering, Advanced Materials Research Center, Najafabad Branch, Islamic Azad University, Najafabad, Iran
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Kaur A, Salunke DB, Umar A, Mehta SK, Sinha ASK, Kansal SK. Visible light driven photocatalytic degradation of fluoroquinolone levofloxacin drug using Ag2O/TiO2 quantum dots: a mechanistic study and degradation pathway. NEW J CHEM 2017. [DOI: 10.1039/c7nj02053h] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ag2O/TiO2 QDs exhibited a photocatalytic activity of 81% for the degradation of levofloxacin under visible light, which is higher than those of commercially available catalysts.
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Affiliation(s)
- Amandeep Kaur
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology
- Panjab University
- Chandigarh-160014
- India
| | | | - Ahmad Umar
- Department of Chemistry
- Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED)
- Najran University
- Najran-11001
- Kingdom of Saudi Arabia
| | | | - A. S. K. Sinha
- Department of Chemical Engineering and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221005
- India
| | - Sushil Kumar Kansal
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology
- Panjab University
- Chandigarh-160014
- India
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12
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Zhao Y, Tao C, Xiao G, Su H. Controlled synthesis and wastewater treatment of Ag2O/TiO2 modified chitosan-based photocatalytic film. RSC Adv 2017. [DOI: 10.1039/c6ra27295a] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel Ag2O/TiO2-modified chitosan-based photocatalytic film with high adsorption and photocatalytic activity was synthesized, based upon the coupling of the synergistic catalytic technique of nano Ag2O/TiO2 and membrane separation.
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Affiliation(s)
- Yilin Zhao
- Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Chengran Tao
- Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Gang Xiao
- Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
| | - Haijia Su
- Beijing Key Laboratory of Bioprocess
- Beijing University of Chemical Technology
- Beijing 100029
- PR China
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13
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Chang S, Yang X, Sang Y, Liu H. Highly Efficient Photocatalysts and Continuous-Flow Photocatalytic Reactors for Degradation of Organic Pollutants in Wastewater. Chem Asian J 2016; 11:2352-71. [DOI: 10.1002/asia.201600363] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Sujie Chang
- State Key Laboratory of Crystal Materials; Shandong University; Jinan 250100 P.R. China
| | - Xiaoqiu Yang
- Basic Research Service; Ministry of Science and Technology; of the People's Republic of China; Beijing 100862 P.R. China
| | - Yuanhua Sang
- State Key Laboratory of Crystal Materials; Shandong University; Jinan 250100 P.R. China
| | - Hong Liu
- State Key Laboratory of Crystal Materials; Shandong University; Jinan 250100 P.R. China
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14
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Paul KK, Ghosh R, Giri PK. Mechanism of strong visible light photocatalysis by Ag2O-nanoparticle-decorated monoclinic TiO2(B) porous nanorods. NANOTECHNOLOGY 2016; 27:315703. [PMID: 27333816 DOI: 10.1088/0957-4484/27/31/315703] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report on the ultra-high rate of photodegradation of organic dyes under visible light illumination on Ag2O-nanoparticle-decorated (NP) porous pure B-phase TiO2 (TiO2(B)) nanorods (NRs) grown by a solvothermal route. The as-grown TiO2(B) NRs are found to be nanoporous in nature and the Ag2O NPs are uniformly decorated over its surface, since most of the pores work as nucleation sites for the growth of Ag2O NPs. The effective band gap of the TiO2(B)/Ag2O heterostructure (HS), with a weight ratio of 1:1, has been significantly reduced to 1.68 eV from the pure TiO2(B) band gap of 2.8 eV. Steady state and time-resolved photoluminescence (PL) studies show the reduced intensity of visible PL and slower recombination dynamics in the HS samples. The photocatalytic degradation efficiency of the TiO2(B)/Ag2O HS has been investigated using aqueous methyl orange and methylene blue as reference dyes under visible light (390-800 nm) irradiation. It is found that photodegradation by the TiO2(B)/Ag2O HS is about one order of magnitude higher than that of bare TiO2(B) NRs and Ag2O NPs. The optimized TiO2(B)/Ag2O HS exhibited the highest photocatalytic efficiency, with 88.2% degradation for 30 min irradiation. The corresponding first order degradation rate constant is 0.071 min(-1), which is four times higher than the reported values. Furthermore, cyclic stability studies show the high stability of the HS photocatalyst for up to four cycles of use. The major improvement in photocatalytic efficiency has been explained on the basis of enhanced visible light absorption and band-bending-induced efficient charge separation in the HS. Our results demonstrate the long-term stability and superiority of the TiO2(B)/Ag2O HS over the bare TiO2(B) NRs and other TiO2-based photocatalysts for its cutting edge application in hydrogen production and environmental cleaning driven by solar light photocatalysis.
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Affiliation(s)
- Kamal Kumar Paul
- Department of Physics, Indian Institute of Technology Guwahati, Guwahati-781039, India
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15
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Ag Sm 2 O 3 nanocomposite for environmental remediation of cyanide from aqueous solution. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.04.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Application of nanoparticles derived from marine Staphylococcus lentus in sensing dichlorvos and mercury ions. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.04.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Ramacharyulu PVRK, Muhammad R, Praveen Kumar J, Prasad GK, Mohanty P. Iron phthalocyanine modified mesoporous titania nanoparticles for photocatalytic activity and CO2 capture applications. Phys Chem Chem Phys 2016; 17:26456-62. [PMID: 26393761 DOI: 10.1039/c5cp03576g] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iron(II)phthalocyanine (Fepc) modified mesoporous titania (Fepc-TiO2) nanocatalyst with a specific surface area of 215 m(2) g(-1) has been synthesized by a hydrothermal method. Fepc-TiO2 degrades one of the highly toxic chemical warfare agents, sulfur mustard (SM), photocatalytically under sunlight with an exposure time of as low as 70 min. Furthermore, the mesoporous Fepc-TiO2 also captured 2.1 mmol g(-1) of CO2 at 273 K and 1 atm.
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Affiliation(s)
- P V R K Ramacharyulu
- Department of Applied Science and Engineering, IIT Roorkee, Saharanpur Campus, Saharanpur, U.P.-247 001, India.
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18
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Synthesis and Characterization of Ag-Ag2O/TiO2@polypyrrole Heterojunction for Enhanced Photocatalytic Degradation of Methylene Blue. Catalysts 2016. [DOI: 10.3390/catal6060076] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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19
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Elmas S, Ambroz F, Chugh D, Nann T. Microfluidic Chip for the Photocatalytic Production of Active Chlorine. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:4952-4958. [PMID: 27115714 DOI: 10.1021/acs.langmuir.6b00748] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Active chlorine is the most powerful microbicidal reagent in swimming pools, potable water, hospitals, and medical surgeries. Its production mainly relies on reactive inorganic intermediates and electrochemical methods that involve undesired waste products and high energy as well as material costs. In this study, we fabricated a low-cost chip based on sputter-coated thin films of silver (Ag) that acted as recyclable and effective photoelectrode for the photocatalytic production of active chlorine (HOCl) from aqueous media and artificial sunlight. The photoelectrode was electrochemically activated to AgCl at low overpotentials between 0.2 and 0.4 V vs Ag|AgCl (3 M KCl) and photocatalytically reduced to Ag(0) for 15 consecutive cycles, showing the electrode still being active. However, because of poor adhesion properties on the selected substrates, degradation effects were observed over time. Furthermore, the Ag@AgCl photoelectrode was integrated into a microfluidic chip, and we showed for the first time a light-driven microfluidic chip generating a constant stream of active chlorine.
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Affiliation(s)
- Sait Elmas
- Future Industries Institute, University of South Australia , Mawson Lakes Campus, Adelaide SA 5095, Australia
| | - Filip Ambroz
- Future Industries Institute, University of South Australia , Mawson Lakes Campus, Adelaide SA 5095, Australia
| | - Dipankar Chugh
- Department of Electronic Materials Engineering, Australian National University Canberra , Acton ACT 2601, Australia
| | - Thomas Nann
- The MacDiarmid Institute, Victoria University of Wellington , Wellington 6140, New Zealand
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20
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Zhou B, Yang X, Sui Y, Xiao G, Wei Y, Zou B. Alternative motif toward high-quality wurtzite MnSe nanorods via subtle sulfur element doping. NANOSCALE 2016; 8:8784-8790. [PMID: 27064941 DOI: 10.1039/c6nr00446f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The manipulated synthesis of high-quality semiconductor nanocrystals (NCs) is of high significance with respect to the exploration of their properties and their corresponding applications. Nevertheless, the preparation of metastable-phase NCs still remains a great challenge due to their high kinetic barriers and harsh synthetic conditions. Herein, we demonstrated the fabrication of high-quality MnSe nanorods with a metastable wurtzite structure via a subtle sulfur-doping strategy. Based on the UV-vis absorption spectra, manganese polysulfide clusters were formed by mixing oleylamine-sulfur and oleylamine-manganese solutions at room temperature. The existence of manganese polysulfide clusters with polymeric sulfur structures makes the system more reactive, inducing fast wurtzite-phase nucleation. This can overcome the natural kinetic barrier of wurtzite MnSe and lead to subsequent growth of targeted NCs. On the other hand, no sulfur doping would produce MnSe NCs in a thermodynamically favorable rock-salt phase. As expected, different doping contents and sulfur sources also resulted in the formation of high-quality wurtzite MnSe nanorods. This success establishes that a facile strategy can be anticipated to synthesize high-quality metal chalcogenide NCs with a metastable phase, especially wurtzite nanorods, for potential applications from spintronics to solar cells.
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Affiliation(s)
- Bo Zhou
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Xinyi Yang
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Yongming Sui
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Guanjun Xiao
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
| | - Yingjin Wei
- Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, 130012, China
| | - Bo Zou
- State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
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Chen X, Dai Y, Guo J, Liu T, Wang X. Novel Magnetically Separable Reduced Graphene Oxide (RGO)/ZnFe2O4/Ag3PO4 Nanocomposites for Enhanced Photocatalytic Performance toward 2,4-Dichlorophenol under Visible Light. Ind Eng Chem Res 2016. [DOI: 10.1021/acs.iecr.5b03690] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaojuan Chen
- Key Laboratory of Green Catalysis
and Chemical Reaction Engineering of Hunan Province, School of Chemical
Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Youzhi Dai
- Key Laboratory of Green Catalysis
and Chemical Reaction Engineering of Hunan Province, School of Chemical
Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Jing Guo
- Key Laboratory of Green Catalysis
and Chemical Reaction Engineering of Hunan Province, School of Chemical
Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Tanhua Liu
- Key Laboratory of Green Catalysis
and Chemical Reaction Engineering of Hunan Province, School of Chemical
Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Xingyan Wang
- Key Laboratory of Green Catalysis
and Chemical Reaction Engineering of Hunan Province, School of Chemical
Engineering, Xiangtan University, Xiangtan 411105, PR China
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Šutka A, Käämbre T, Pärna R, Döbelin N, Vanags M, Smits K, Kisand V. Ag sensitized TiO2 and NiFe2O4 three-component nanoheterostructures: synthesis, electronic structure and strongly enhanced visible light photocatalytic activity. RSC Adv 2016. [DOI: 10.1039/c6ra00728g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study reports on the synthesis and characterisation of two- and three-component visible light active photocatalytic nanoparticle heterostructures, based on TiO2 and NiFe2O4 and sensitized with Ag.
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Affiliation(s)
- Andris Šutka
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
- Institute of Silicate Materials
| | - Tanel Käämbre
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | - Rainer Pärna
- Institute of Physics
- University of Tartu
- 50411 Tartu
- Estonia
| | | | - Martins Vanags
- Institute of Solid State Physics
- University of Latvia
- 1063 Riga
- Latvia
| | - Krisjanis Smits
- Institute of Solid State Physics
- University of Latvia
- 1063 Riga
- Latvia
| | - Vambola Kisand
- Institute of Silicate Materials
- Riga Technical University
- Riga LV-1048
- Latvia
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23
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Liu MP, Su T, Sun L, Du HB. Facile preparation of yolk–shell structured Si/SiC@C@TiO2 nanocomposites as highly efficient photocatalysts for degrading organic dye in wastewater. RSC Adv 2016. [DOI: 10.1039/c5ra24643a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The prepared yolk–shell Si/SiC@C@TiO2 nanospheres show a strong photon absorbance throughout the visible light region, and excellent photocatalytic performance for degrading methyl blue in water under UV and visible light irradiation.
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Affiliation(s)
- Mei-Pin Liu
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Tingting Su
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Lin Sun
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
| | - Hong-Bin Du
- State Key Laboratory of Coordination Chemistry
- Collaborative Innovation Center of Chemistry for Life Sciences
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
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24
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Wang H, Li J, Zhou M, Guan Q, Lu Z, Huo P, Yan Y. Preparation and characterization of Ag2O/SWNTs photocatalysts and its photodegradation on tetracycline. J IND ENG CHEM 2015. [DOI: 10.1016/j.jiec.2015.05.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Chen XJ, Dai YZ, Wang XY, Guo J, Liu TH, Li FF. Synthesis and characterization of Ag₃PO₄ immobilized with graphene oxide (GO) for enhanced photocatalytic activity and stability over 2,4-dichlorophenol under visible light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2015; 292:9-18. [PMID: 25781371 DOI: 10.1016/j.jhazmat.2015.01.032] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Revised: 01/08/2015] [Accepted: 01/10/2015] [Indexed: 06/04/2023]
Abstract
A series of visible-light responsive photocatalysts prepared using Ag3PO4 immobilized with graphene oxide (GO) with varying GO content were obtained by an electrostatically driven method, and 2,4-dichlorophenol (2,4-DCP) was used to evaluate the performance of the photocatalysts. The composites exhibited superior photocatalytic activity and stability compared with pure Ag3PO4. When the content of GO was 5%, the degradation efficiency of 2,4-DCP could reach 98.95%, and 55.91% of the total organic (TOC) content was removed within 60 min irradiation. Meanwhile, the efficiency of 91.77% was achieved for 2,4-DCP degradation even after four times of recycling in the photocatalysis/Ag3PO4-GO (5%) system. Reactive species of O2(˙-), OH˙ and h(+) were considered as the main participants for oxidizing 2,4-DCP, as confirmed by the free radical capture experiments. And some organic intermediates including 4-chlorophenol (4-CP), hydroquinone (HQ), benzoquinone (BZQ), 2-chlorohydroquinone and hydroxyhydroquinone (HHQ) were detected by comparison with the standard retention times from the high performance liquid chromatography (HPLC). In short, the enhanced photocatalytic property of Ag3PO4-GO was closely related to the strong absorption ability of GO relative to 2,4-DCP, the effective separation of photogenerated electron-hole pairs, and the excellent electron capture capability of GO.
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Affiliation(s)
- Xiao-juan Chen
- Department of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - You-zhi Dai
- Department of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, PR China.
| | - Xing-yan Wang
- Department of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Jing Guo
- Department of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Tan-hua Liu
- Department of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, PR China
| | - Fen-fang Li
- Department of Environmental Science and Engineering, Xiangtan University, Xiangtan 411105, PR China; Department of Environmental Science, Changsha Environmental Protection Vocational College, Changsha410004, PR China
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Liu C, Cao C, Luo X, Luo S. Ag-bridged Ag2O nanowire network/TiO2 nanotube array p-n heterojunction as a highly efficient and stable visible light photocatalyst. JOURNAL OF HAZARDOUS MATERIALS 2015; 285:319-324. [PMID: 25528230 DOI: 10.1016/j.jhazmat.2014.12.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 11/28/2014] [Accepted: 12/09/2014] [Indexed: 06/04/2023]
Abstract
A unique Ag-bridged Ag2O nanowire network/TiO2 nanotube array p-n heterojunction (Ag-Ag2O/TiO2 NT) was fabricated by simple electrochemical method. Ag nanoparticles were firstly electrochemically deposited onto the surface of TiO2 NT and then were partly oxidized to Ag2O nanowires while the rest of Ag mother nanoparticles were located at the junctions of Ag2O nanowire network. The Ag-Ag2O/TiO2 NT heterostructure exhibited strong visible-light response, effective separation of photogenerated carriers, and high adsorption capacity. The integration of Ag-Ag2O self-stability structure and p-n heterojunction permitted high and stable photocatalytic activity of Ag-Ag2O/TiO2 NT heterostructure photocatalyst. Under 140-min visible light irradiation, the photocatalytic removal efficiency of both dye acid orange 7 (AO7) and industrial chemical p-nitrophenol (PNP) over Ag-Ag2O/TiO2 NT reached nearly 100% much higher than 17% for AO7 or 13% for PNP over bare TiO2 NT. After 5 successive cycles under 600-min simulated solar light irradiation, Ag-Ag2O/TiO2 NT remained highly stable photocatalytic activity.
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Affiliation(s)
- Chengbin Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China.
| | - Chenghao Cao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China
| | - Xubiao Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, PR China
| | - Shenglian Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, PR China; State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China
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Gao X, Esteves RJ, Luong TTH, Jaini R, Arachchige IU. Oxidation-Induced Self-Assembly of Ag Nanoshells into Transparent and Opaque Ag Hydrogels and Aerogels. J Am Chem Soc 2014; 136:7993-8002. [DOI: 10.1021/ja5020037] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiaonan Gao
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, United States
| | - Richard J Esteves
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, United States
| | - Thi Thu Hien Luong
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, United States
| | - Rajendra Jaini
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, United States
| | - Indika U. Arachchige
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, United States
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Tian J, Zhao Z, Kumar A, Boughton RI, Liu H. Recent progress in design, synthesis, and applications of one-dimensional TiO2 nanostructured surface heterostructures: a review. Chem Soc Rev 2014; 43:6920-37. [DOI: 10.1039/c4cs00180j] [Citation(s) in RCA: 663] [Impact Index Per Article: 66.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
One-dimensional TiO2 nanostructured surface heterostructures (1D TiO2NSHs) have been comprehensively studied during the past two decades because of the possible practical applications in various fields, including photocatalysis, dye-sensitized solar cells, sensors, lithium batteries, biomedicine, catalysis, and supercapacitors.
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Affiliation(s)
- Jian Tian
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100, P. R. China
| | - Zhenhuan Zhao
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100, P. R. China
| | - Anil Kumar
- Beijing Institute of Nanoenergy and Nanosystems
- Chinese Academy of Science
- Beijing 100864, P. R. China
| | - Robert I. Boughton
- Department of Physics and Astronomy
- Green State University
- Bowling Green, USA
| | - Hong Liu
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100, P. R. China
- Beijing Institute of Nanoenergy and Nanosystems
- Chinese Academy of Science
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