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Cho H, Seo SE, Kwon OS, Kim HI. Photonic crystal-assisted sub-bandgap photocatalysis via triplet-triplet annihilation upconversion for the degradation of environmental organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135208. [PMID: 39067295 DOI: 10.1016/j.jhazmat.2024.135208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 06/17/2024] [Accepted: 07/13/2024] [Indexed: 07/30/2024]
Abstract
This study explores novel approaches to enhance photocatalysis efficiency by introducing a photonic crystal (PC)-enhanced, multi-layered sub-bandgap photocatalytic reactor. The design aims to effectively utilize sub-bandgap photons that might otherwise go unused. The device consists of three types of layers: (1) two polymeric triplet-triplet annihilation upconversion (TTA-UC) layers converting low-energy green photons (λEx = 532 nm, 2.33 eV) to high-energy blue photons (λEm = 425 nm, 2.92 eV), (2) a platinum-decorated WO3 layer (Eg = 2.8 eV) serving as a visible-light photocatalyst, and (3) a PC layer optimizing both TTA-UC and photocatalysis. The integration of the PC layer resulted in a 1.9-fold increase in UC emission and a 7.9-fold enhancement in hydroxyl radical (•OH) generation, achieved under low-intensity sub-bandgap irradiation (17.6 mW cm-2). Consequently, the combined layered structure of TTA/Pt-WO3/TTA/PC achieved a remarkable 38.8-fold improvement in •OH production, leading to outstanding degradation capability for various organic pollutants (e.g., 4-chlorophenol, bisphenol A, and methylene blue). This multi-layered sub-bandgap photocatalytic structure, which uniquely combines TTA-UC and PC layers, offers valuable insights into designing efficient photocatalytic systems for future solar-driven environmental remediation.
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Affiliation(s)
- Haein Cho
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Koreaī
| | - Sung Eun Seo
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Koreaī; SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Oh Seok Kwon
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 16419, Republic of Korea; Department of Nano Science and Technology, Sungkyunkwan University, Suwon 16419, Republic of Korea; Department of Nano Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyoung-Il Kim
- Department of Civil and Environmental Engineering, Yonsei University, Seoul 03722, Republic of Koreaī; Future City Open Innovation Center, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
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Xiong L, Yu Z, Cao H, Guan W, Su Y, Pan X, Zhang L, Liu X, Wang A, Tang J. Converting Glycerol into Valuable Trioses by Cu δ+ -Single-Atom-Decorated WO 3 under Visible Light. Angew Chem Int Ed Engl 2024; 63:e202318461. [PMID: 38302835 DOI: 10.1002/anie.202318461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Photocatalytic selective oxidation under visible light presents a promising approach for the sustainable transformation of biomass-derived wastes. However, achieving both high conversion and excellent selectivity poses a significant challenge. In this study, two valuable trioses, glyceraldehyde and dihydroxyacetone, are produced from glycerol over Cuδ+ -decorated WO3 photocatalyst in the presence of H2 O2 . The photocatalyst exhibits a remarkable five-fold increase in the conversion rate (3.81 mmol ⋅ g-1 ⋅ h-1 ) while maintaining a high selectivity towards two trioses (46.4 % to glyceraldehyde and 32.9 % to dihydroxyacetone). Through a comprehensive analysis involving X-ray photoelectron spectroscopy measurements with and without light irradiation, electron spin resonance spectroscopy, and isotopic analysis, the critical role of Cu+ species has been explored as efficient hole acceptors. These species facilitate charge transfer, promoting glycerol oxidation by photoholes, followed by coupling with OH- , which are subsequently dehydrated to yield the desired glyceraldehyde and dihydroxyacetone.
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Affiliation(s)
- Lunqiao Xiong
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | - Zhounan Yu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Hongchen Cao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Weixiang Guan
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Yang Su
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiaoli Pan
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Leilei Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiaoyan Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Aiqin Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Junwang Tang
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
- Industrial Catalysis Center, Department of Chemical Engineering, Tsinghua University, Beijing, 100084, China
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Nguyen LH, Dinh DA, Thi LAP, Pham PV, Singh P, Raizada P, Lin KYA, Nguyen VH. Advances and perspectives of nanomaterials for photocatalytic degradation of biological ethylene toward the postharvest improvement of agricultural products. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-31524-2. [PMID: 38147254 DOI: 10.1007/s11356-023-31524-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 12/09/2023] [Indexed: 12/27/2023]
Abstract
To date, intensive emphasis is required to develop advanced postharvest technologies to ensure food security, increase nutrition, and improve farmers toward cleaner production. How to effectively degrade the harmful gaseous ethylene (C2H4) biosynthesis, which distributes heavy losses of fresh-cut fruits and vegetables, has received considerable attention. Among various advanced techniques, photocatalytic degradation of biological C2H4 is proposed as the most promising method to solve this issue. In this context, the recent studies on the photodegradation of C2H4 have been critically summarized and highlighted. Many photocatalysts, including TiO2-based and non-TiO2-based (metal oxides (ZnO, WO3, Ga2O3), molybdates (β-Ag2MoO4), phosphides (Ag3PO4), perovskite oxides (Bi2WO6)) nanomaterials, have been revealed with credible performance results. Also, varying reaction parameters to optimize the photocatalytic degradation efficacy in the literature are summarized. We also discussed the current status, challenges, and prospects for enhanced photodegradation of C2H4 in this study. The efficacy and economics of photodegradation have played an essential role in selecting a particular type of photocatalyst. Although many efforts have been made, significant improvements are still required for photocatalysis. In this work, we have also successfully suggested some strategies to further promote this concept for controlling and degrading plant-generated C2H4 in fruit and vegetable postharvest in a sustainable and economically feasible manner.
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Affiliation(s)
- Lan Huong Nguyen
- Faculty of Biology and Environment, Ho Chi Minh City University of Industry and Trade (HUIT), 140 Le Trong Tan Street, Tay Thanh Ward, Tan Phu District, Ho Chi Minh City, Vietnam
| | - Duc Anh Dinh
- VKTech Research Center, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, 700000, Vietnam
| | - Lan-Anh Phan Thi
- VNU Key Laboratory of Analytical Technology for Environmental Quality and Food Safety Control (KLATEFOS), University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi, Vietnam
- Center for Environmental Technology and Sustainable Development (CETASD), University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi, Vietnam
| | - Phuong V Pham
- Department of Physics, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Pardeep Singh
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
| | - Pankaj Raizada
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
| | - Kun-Yi Andrew Lin
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, Taichung, Taiwan
| | - Van-Huy Nguyen
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
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Koshevoy E, Gribov E, Polskikh D, Lyulyukin M, Solovyeva M, Cherepanova S, Kozlov D, Selishchev D. Photoelectrochemical Methods for the Determination of the Flat-Band Potential in Semiconducting Photocatalysts: A Comparison Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13466-13480. [PMID: 37696112 DOI: 10.1021/acs.langmuir.3c01158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
In addition to the band gap of a semiconducting photocatalyst, its band edges are important because they play a crucial role in the analysis of charge transfer and possible pathways of the photocatalytic reaction. The Mott-Schottky method using electrochemical impedance spectroscopy is the most common experimental technique for the determination of the electron potential in photocatalysts. This method is well suited for large crystals, but in the case of nanocatalysts, when the thickness of the charged layer is comparable with the size of the nanocrystals, the capacitance of the Helmholtz layer can substantially affect the measured potential. A contact between the electrolyte and the substrate, used for deposition of the photocatalyst, also affects the impedance. Application of other photoelectrochemical methods may help to avoid concerns in the interpretation of impedance data and improve the reliability of measurements. In this study, we have successfully prepared five visible-light active photocatalysts (i.e., N-doped TiO2, WO3, Bi2WO6, CoO, and g-C3N4) and measured their flat-band potentials using four (photo)electrochemical methods. The potentials are compared for all methods and discussed regarding the type of semiconducting material and its properties. The effect of methanol as a sacrificial agent for the enhanced transfer of charge carriers is studied and discussed for each method.
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Affiliation(s)
- Evgeny Koshevoy
- Boreskov Institute of Catalysis, Lavrentieva 5, Novosibirsk 630090, Russia
| | - Evgeny Gribov
- Boreskov Institute of Catalysis, Lavrentieva 5, Novosibirsk 630090, Russia
| | - Danil Polskikh
- Boreskov Institute of Catalysis, Lavrentieva 5, Novosibirsk 630090, Russia
| | - Mikhail Lyulyukin
- Boreskov Institute of Catalysis, Lavrentieva 5, Novosibirsk 630090, Russia
| | - Maria Solovyeva
- Boreskov Institute of Catalysis, Lavrentieva 5, Novosibirsk 630090, Russia
| | | | - Denis Kozlov
- Boreskov Institute of Catalysis, Lavrentieva 5, Novosibirsk 630090, Russia
| | - Dmitry Selishchev
- Boreskov Institute of Catalysis, Lavrentieva 5, Novosibirsk 630090, Russia
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A P, Palanisamy G, L AP, F Albeshr M, Fahad Alrefaei A, Lee J, Liu X. Photocatalytic degradation of organic pollutants and inactivation of pathogens under visible light via SnO 2/rGO composites. CHEMOSPHERE 2023:139102. [PMID: 37290513 DOI: 10.1016/j.chemosphere.2023.139102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 05/17/2023] [Accepted: 05/31/2023] [Indexed: 06/10/2023]
Abstract
The domains of environmental cleanup and pathogen inactivation are particularly interesting in nanocomposites (NCs) due to their exceptional physicochemical properties. Tin oxide/reduced graphene oxide nanocomposites (SnO2/rGO NCs) have potential uses in the biological and environmental fields, but little is known about them. This study aimed to investigate the photocatalytic activity and antibacterial efficiency of the nanocomposites. The co-precipitation technique was used to prepare all the samples. XRD, SEM, EDS, TEM, and XPS analyses were employed to characterize the physicochemical properties of SnO2/rGO NCs for structural analysis. The rGO loading sample resulted in a decrease in the crystallite size of SnO2 nanoparticles. TEM and SEM images demonstrate the firm adherence of SnO2 nanoparticles to the rGO sheets. The chemical state and elemental composition of the nanocomposites were validated by the XPS and EDS data. Additionally, the visible-light active photocatalytic and antibacterial capabilities of the synthesized nanocomposites were assessed for the degradation of Orange II and methylene blue, as well as the suppression of the growth of S. aureus and E. coli. As a result, the synthesized SnO2/rGO NCs are improved photocatalysts and antibacterial agents, expanding their potential in the fields of environmental remediation and water disinfection.
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Affiliation(s)
- Priyadharsan A
- Department of Conservative Dentistry and Endodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, 600 077, India
| | - Govindasamy Palanisamy
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 38541, Republic of Korea.
| | - Arul Pragasan L
- Department of Environmental Sciences, Bharathiar University, Coimbatore, 641 046, India
| | - Mohammed F Albeshr
- Department of Zoology, College of Sciences, King Saud University, P.O.Box.2455, Riyadh, 11451, Saudi Arabia
| | - Abdulwahed Fahad Alrefaei
- Department of Zoology, College of Sciences, King Saud University, P.O.Box.2455, Riyadh, 11451, Saudi Arabia
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan, 38541, Republic of Korea
| | - Xinghui Liu
- School of Physics and Electronic Information, Yan'an University, Yan'an, 716000, China; Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, 999077, Hong Kong, China.
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Jayaprakash K, Sivasamy A. Polymeric graphitic carbon nitride layers decorated with erbium oxide and enhanced photocatalytic performance under visible light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:52561-52575. [PMID: 36829094 DOI: 10.1007/s11356-023-26008-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Developing and implementing visible light active organic-inorganic hybrid semiconductor nanomaterials with enhanced photocatalytic properties find newer environmental and energy treatment capabilities. Here, we are reporting polymeric g-C3N4 layers coated with different propositions of erbium oxide nanoparticles, characterized using XPS, UV-Vis-DRS, FT-IR, HR-TEM, FE-SEM, elemental mapping, XRD and surface area techniques and its photocatalytic activities were evaluated under visible light irradiations. The hybrid nanocomposite materials possess better crystalline nature and erbium oxide particles were on the surface of polymeric g-C3N4. The surface area and bandgap energy of the polymeric g-C3N4-erbium oxide (5 wt%) nanohybrid composite were 99.9 m2/g and 2.52 eV. The photocatalytic activities as prepared nanohybrid composites were assessed for the oxidation of orange G dye molecules in the presence of visible light and were highly active in a broader range of pH with the presence of various inorganic anions. The rate of photocatalytic oxidation of dye molecules varied from 4.79 × 10-4 to 1.77 × 10-4 min-1 for the initial concentration of 5 to 20 ppm and retained its activities above 95% up to three cycles of reusability. Hence, the organic-inorganic novel catalytic nanohybrid composite may find more comprehensive applications in the area of environmental and energy applications.
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Affiliation(s)
- Kuppan Jayaprakash
- Catalysis Science Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, Tamilnadu, India
- University of Madras, Chepauk Campus, Chennai, 600005, India
| | - Arumugam Sivasamy
- Catalysis Science Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, Tamilnadu, India.
- University of Madras, Chepauk Campus, Chennai, 600005, India.
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7
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Venci X, George A, Raj AD, Irudayaraj AA, Josephine RL, Sundaram SJ, Kaviyarasu K. Self-assembly of CdSe 3D urchins and their photocatalytic response. ENVIRONMENTAL RESEARCH 2022; 214:113804. [PMID: 35830910 DOI: 10.1016/j.envres.2022.113804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 05/06/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Photocatalysis is found to be one of the best suited processes that respond to the purification of water systems and the semiconductor nanomaterials are learned to be incredible materials which carry out the photocatalytic process as they readily decompose the pollutants effectively. In this present work, CdSe nanoparticles belonging to II-VI group semiconductor compounds were synthesized using a facile hydrothermal process with different precursor concentrations and were analysed for various characterization studies such as X-ray diffraction (XRD), Transmission electron microscopy (TEM), UV-vis absorption spectroscopy, Fourier transform infrared spectroscopy (FTIR) and Photoluminescence (PL) studies. The XRD study of the synthesized CdSe nanostructures revealed that the average crystallite size was ranging from 18.5 nm to 24 nm pointing out the increase in size with increase in molar concentrations. The morphological structure of synthesized CdSe samples exhibited urchin-like structure for a lower concentration with several rod-like projections appearing in diverse directions. These CdSe nano-urchins synthesized with lower concentrations are found suitable to carry out the process of photocatalytic activity. The process was carried out under visible light radiation for 180 min with aqueous solution of methylene blue (MB) as the ideal toxin to be degraded. The attained degradation efficiency was nearly 80% clearly displaying that the synthesized samples are good photocatalysts. By tuning the bandgap, through the optimization of the precursor concentrations, greater efficiency can be achieved in future.
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Affiliation(s)
- X Venci
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India; Department of Physics, Auxilium College, Vellore, 632006, Tamil Nadu, India
| | - A George
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India
| | - A Dhayal Raj
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India.
| | - A Albert Irudayaraj
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India
| | - R L Josephine
- Department of Electrical and Electronic Engineering, National Institute of Technology, Tiruchirappalli, 620015, Tamil Nadu, India
| | - S John Sundaram
- Department of Physics, Sacred Heart College (Autonomous), Tirupattur, 635601, Tamil Nadu, India
| | - K Kaviyarasu
- UNESCO-UNISA Africa Chair in Nanosciences/Nanotechnology Laboratories, College of Graduate Studies, University of South Africa (UNISA), Muckleneuk Ridge, PO Box 392, Pretoria, South Africa; Nanosciences African Network (NANOAFNET), Materials Research Group (MRG), iThemba LABS-National Research Foundation (NRF), 1 Old Faure Road, 7129, PO Box 722, Somerset West, Western Cape Province, South Africa.
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Siddique F, Gonzalez-Cortes S, Mirzaei A, Xiao T, Rafiq MA, Zhang X. Solution combustion synthesis: the relevant metrics for producing advanced and nanostructured photocatalysts. NANOSCALE 2022; 14:11806-11868. [PMID: 35920714 DOI: 10.1039/d2nr02714c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The current developments and progress in energy and environment-related areas pay special attention to the fabrication of advanced nanomaterials via green and sustainable paths to accomplish chemical circularity. The design and preparation methods of photocatalysts play a prime role in determining the structural, surface characteristics and optoelectronic properties of the final products. The solution combustion synthesis (SCS) technique is a relatively novel, cost-effective, and efficient method for the bulk production of nanostructured materials. SCS-fabricated metal oxides are of great technological importance in photocatalytic, environmental and energy applications. To date, the SCS route has been employed to produce a large variety of solid materials such as metals, sulfides, carbides, nitrides and single or complex metal oxides. This review intends to provide a holistic perspective of the different steps involved in the chemistry of SCS of advanced photocatalysts, and pursues several SCS metrics that influence their photocatalytic performances to establish a feasible approach to design advanced photocatalysts. The study highlights the fundamentals of SCS and the importance of various combustion parameters in the characteristics of the fabricated photocatalysts. Consequently, this work deals with the design of a concise framework to link the fine adjustment of SCS parameters for the development of efficient metal oxide photocatalysts for energy and environmental applications.
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Affiliation(s)
- Fizza Siddique
- School of Science, Minzu University of China, Beijing, 100081, People's Republic of China.
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad 45650, Pakistan
| | - Sergio Gonzalez-Cortes
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, UK.
| | - Amir Mirzaei
- Institut National de la Recherche Scientifique, Centre Énergie, Matériaux et Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
| | - Tiancun Xiao
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, UK.
| | - M A Rafiq
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences, Nilore, Islamabad 45650, Pakistan
| | - Xiaoming Zhang
- School of Science, Minzu University of China, Beijing, 100081, People's Republic of China.
- Optoelectronics Research Center, Minzu University of China, Beijing, 100081, People's Republic of China
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Niu X, Du Y, He J, Li X, Wen G. Hydrothermal Synthesis of Co-Exposed-Faceted WO 3 Nanocrystals with Enhanced Photocatalytic Performance. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12162879. [PMID: 36014744 PMCID: PMC9415315 DOI: 10.3390/nano12162879] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 06/12/2023]
Abstract
In this paper, rod-shaped, cuboid-shaped, and irregular WO3 nanocrystals with different co-exposed crystal facets were prepared for the first time by a simple hydrothermal treatment of tungstic acid colloidal suspension with desired pH values. The crystal structure, morphology, specific surface area, pore size distribution, chemical composition, electronic states of the elements, optical properties, and charge migration behavior of as-obtained WO3 products were characterized by powder X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), fully automatic specific surface area and porosity analyzer, UV-vis absorption spectra, photoluminescence (PL) spectra, and electrochemical impedance spectroscopy (EIS). The photocatalytic performances of the synthesized pHx-WO3 nanocrystals (x = 0.0, 1.5, 3.0, 5.0, and 7.0) were evaluated and compared with the commercial WO3 (CM-WO3) nanocrystals. The pH7.0-WO3 nanocrystals with co-exposed {202} and {020} facets exhibited highest photocatalytic activity for the degradation of methylene blue solution, which can be attributed to the synergistic effects of the largest specific surface area, the weakest luminescence peak intensity and the smallest arc radius diameter.
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Affiliation(s)
- Xianjun Niu
- Department of Chemistry and Chemical Engineering, Jinzhong University, Jinzhong 030619, China
| | - Yien Du
- Department of Chemistry and Chemical Engineering, Jinzhong University, Jinzhong 030619, China
| | - Jing He
- Department of Chemistry and Chemical Engineering, Jinzhong University, Jinzhong 030619, China
| | - Xiaodong Li
- Department of Chemistry and Chemical Engineering, Jinzhong University, Jinzhong 030619, China
| | - Guangming Wen
- Department of Chemistry and Chemical Engineering, Jinzhong University, Jinzhong 030619, China
- Department of Scientific Research, Jinzhong University, Jinzhong 030619, China
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10
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Gerken LRH, Gogos A, Starsich FHL, David H, Gerdes ME, Schiefer H, Psoroulas S, Meer D, Plasswilm L, Weber DC, Herrmann IK. Catalytic activity imperative for nanoparticle dose enhancement in photon and proton therapy. Nat Commun 2022; 13:3248. [PMID: 35668122 PMCID: PMC9170699 DOI: 10.1038/s41467-022-30982-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/24/2022] [Indexed: 12/19/2022] Open
Abstract
Nanoparticle-based radioenhancement is a promising strategy for extending the therapeutic ratio of radiotherapy. While (pre)clinical results are encouraging, sound mechanistic understanding of nanoparticle radioenhancement, especially the effects of nanomaterial selection and irradiation conditions, has yet to be achieved. Here, we investigate the radioenhancement mechanisms of selected metal oxide nanomaterials (including SiO2, TiO2, WO3 and HfO2), TiN and Au nanoparticles for radiotherapy utilizing photons (150 kVp and 6 MV) and 100 MeV protons. While Au nanoparticles show outstanding radioenhancement properties in kV irradiation settings, where the photoelectric effect is dominant, these properties are attenuated to baseline levels for clinically more relevant irradiation with MV photons and protons. In contrast, HfO2 nanoparticles retain some of their radioenhancement properties in MV photon and proton therapies. Interestingly, TiO2 nanoparticles, which have a comparatively low effective atomic number, show significant radioenhancement efficacies in all three irradiation settings, which can be attributed to the strong radiocatalytic activity of TiO2, leading to the formation of hydroxyl radicals, and nuclear interactions with protons. Taken together, our data enable the extraction of general design criteria for nanoparticle radioenhancers for different treatment modalities, paving the way to performance-optimized nanotherapeutics for precision radiotherapy. Nanoparticles have recently received attention in radiation therapy since they can act as radioenhancers. In this article, the authors report on the dose enhancement capabilities of a series of nanoparticles based on their metal core composition and beam characteristics, obtaining designing criteria for their optimal performance in specific radiotreatments.
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Affiliation(s)
- Lukas R H Gerken
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland.,Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Alexander Gogos
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland.,Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Fabian H L Starsich
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland.,Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland
| | - Helena David
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland
| | - Maren E Gerdes
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland
| | - Hans Schiefer
- Department of Radiation Oncology, Cantonal Hospital St. Gallen (KSSG), Rorschacherstrasse 95, CH-9007, St. Gallen, Switzerland
| | - Serena Psoroulas
- Center for Proton Therapy, Paul Scherrer Institute (PSI), Forschungsstrasse 111, 5232, Villigen PSI, Switzerland
| | - David Meer
- Center for Proton Therapy, Paul Scherrer Institute (PSI), Forschungsstrasse 111, 5232, Villigen PSI, Switzerland
| | - Ludwig Plasswilm
- Department of Radiation Oncology, Cantonal Hospital St. Gallen (KSSG), Rorschacherstrasse 95, CH-9007, St. Gallen, Switzerland.,Department of Radiation Oncology, University Hospital Bern (Inselspital), 3010, Bern, Switzerland
| | - Damien C Weber
- Center for Proton Therapy, Paul Scherrer Institute (PSI), Forschungsstrasse 111, 5232, Villigen PSI, Switzerland.,Department of Radiation Oncology, University Hospital Bern (Inselspital), 3010, Bern, Switzerland.,Department of Radiation Oncology, University Hospital Zürich, 8091, Zürich, Switzerland
| | - Inge K Herrmann
- Nanoparticle Systems Engineering Laboratory, Institute of Energy and Process Engineering (IEPE), Department of Mechanical and Process Engineering (D-MAVT), ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland. .,Particles Biology Interactions Laboratory, Department of Materials Meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), Lerchenfeldstrasse 5, 9014, St. Gallen, Switzerland.
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11
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One-Pot Synthesis of SnO 2-rGO Nanocomposite for Enhanced Photocatalytic and Anticancer Activity. Polymers (Basel) 2022; 14:polym14102036. [PMID: 35631918 PMCID: PMC9144687 DOI: 10.3390/polym14102036] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/13/2022] [Accepted: 05/13/2022] [Indexed: 01/26/2023] Open
Abstract
Metal oxide and graphene derivative-based nanocomposites (NCs) are attractive to the fields of environmental remediation, optics, and cancer therapy owing to their remarkable physicochemical characteristics. There is limited information on the environmental and biomedical applications of tin oxide-reduced graphene oxide nanocomposites (SnO2-rGO NCs). The goal of this work was to explore the photocatalytic activity and anticancer efficacy of SnO2-rGO NCs. Pure SnO2 NPs and SnO2-rGO NCs were prepared using the one-pot hydrothermal method. X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), UV–Vis spectrometry, photoluminescence (PL), and Raman scattering microscopy were applied to characterize the synthesized samples. The crystallite size of the SnO2 NPs slightly increased after rGO doping. TEM and SEM images show that the SnO2 NPs were tightly anchored onto the rGO sheets. The XPS and EDX data confirmed the chemical state and elemental composition of the SnO2-rGO NCs. Optical data suggest that the bandgap energy of the SnO2-rGO NCs was slightly lower than for the pure SnO2 NPs. In comparison to pure SnO2 NPs, the intensity of the PL spectra of the SnO2-rGO NCs was lower, indicating the decrement of the recombination rate of the surfaces charges (e−/h+) after rGO doping. Hence, the degradation efficiency of methylene blue (MB) dye by SnO2-rGO NCs (93%) was almost 2-fold higher than for pure SnO2 NPs (54%). The anticancer efficacy of SnO2-rGO NCs was also almost 1.5-fold higher against human liver cancer (HepG2) and human lung cancer (A549) cells compared to the SnO2 NPs. This study suggests a unique method to improve the photocatalytic activity and anticancer efficacy of SnO2 NPs by fusion with graphene derivatives.
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12
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Ragupathy S, Manikandan V, Devanesan S, Ahmed M, Ramamoorthy M, Priyadharsan A. Enhanced sun light driven photocatalytic activity of Co doped SnO 2 loaded corn cob activated carbon for methylene blue dye degradation. CHEMOSPHERE 2022; 295:133848. [PMID: 35122815 DOI: 10.1016/j.chemosphere.2022.133848] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/25/2022] [Accepted: 01/31/2022] [Indexed: 06/14/2023]
Abstract
SnO2 with different Co2+ doping concentrations and Co (0.075 M): SnO2 loaded corn cob activated carbon (Co: SnO2/CCAC) were prepared, and are labelled as CS1, CS2, CS3 and CS2/CCAC, respectively. The CS2/CCAC showed that the particle size (18.76 nm) and band gap (3.50 eV) are reduced with Co2+ doping and CCAC loading. Moreover, CS2/CCAC indicate that the decreased PL intensity and its lower value (2.156 kΩ) of impedance from EIS results which indicates the increased separation of the photogenerated e-/h+ pairs. Thus, the result showed that CS2/CCAC maximum degradation efficiency of MB (95.38%) and the photocatalytic mechanism is also discussed.
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Affiliation(s)
- S Ragupathy
- Department of Physics, E.R.K. Arts and Science College, Erumiyampatti, Dharmapuri, 636 905, Tamil Nadu, India.
| | - Velu Manikandan
- Department of Bio Nanotechnology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13120, North Korea
| | - Sandhanasamy Devanesan
- Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box-2455, Riyadh, 11451, Saudi Arabia
| | - Mukhtar Ahmed
- Department of Zoology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - M Ramamoorthy
- Department of Physics, E.R.K. Arts and Science College, Erumiyampatti, Dharmapuri, 636 905, Tamil Nadu, India; Department of Physics, Periyar University, Salem, 636 011, Tamil Nadu, India
| | - A Priyadharsan
- Department of Physics, E.R.K. Arts and Science College, Erumiyampatti, Dharmapuri, 636 905, Tamil Nadu, India.
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13
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Sha S, Hou Q, Qi M, Zhao C. Effects of Coexistence of Mo and Zn Vacancies with Different Valence States and Interstitial H on the Magneto-optical Properties of ZnO: First-principles calculations. Chem Phys 2022. [DOI: 10.1016/j.chemphys.2022.111589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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14
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Moradeeya PG, Sharma A, Kumar MA, Basha S. Titanium dioxide based nanocomposites - Current trends and emerging strategies for the photocatalytic degradation of ruinous environmental pollutants. ENVIRONMENTAL RESEARCH 2022; 204:112384. [PMID: 34785207 DOI: 10.1016/j.envres.2021.112384] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 11/07/2021] [Accepted: 11/10/2021] [Indexed: 06/13/2023]
Abstract
Many ruinous pollutants are omnipresent in the environment and among them; pesticides are xenobiotic and pose to be a bio-recalcitrance. Their detrimental ecological and environmental impacts attract attention of environmental excerpts and the surge of stringent regulations have endows the need of a technically feasible treatment. This critical review emphasizes about the occurrence, abundance and fate of structurally distinct pesticides in different environment. The practiced remedial strategies and in particular, the advanced oxidation processes (AOPs) those utilize the photo-catalytic properties of nano-composites for the degradation of pollutants are critically discussed. Photo-catalytic degradation utilizes many composite materials at nano-scale level, wherein synthesis of nano-composites with appropriate precursors and other adjoining functional moieties are of prime importance. Therefore, suitable starter materials along with the reaction conditions are prerequisite for effectively tailoring the nano-composites. The aforementioned aspects and their customized applications are critically discussed. The associated challenges, opportunities and process economics of degradation using photo-catalytic AOP techniques are highlighted and in addition, the review tries to explain how best the photo-degradation can be a stand-alone tool with a societal importance. Conclusively, the future prospects for undertaking new researches in photo-catalytic breakdown of pollutants that can be judiciously sustainable.
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Affiliation(s)
- Pareshkumar G Moradeeya
- Hyderabad Zonal Laboratory, CSIR-National Environmental Engineering Research Institute, IICT Campus, Tarnaka, Hyderabad, 500 007, Telangana, India; Department of Environmental Science & Engineering, Marwadi Education Foundation, Rajkot, 360 003, Gujarat, India
| | - Archana Sharma
- Department of Environmental Science & Engineering, Marwadi Education Foundation, Rajkot, 360 003, Gujarat, India
| | - Madhava Anil Kumar
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364 002, Gujarat, India
| | - Shaik Basha
- Hyderabad Zonal Laboratory, CSIR-National Environmental Engineering Research Institute, IICT Campus, Tarnaka, Hyderabad, 500 007, Telangana, India.
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15
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Cui T, Zhang Y, Yan Y, Zhao J, Qi K, Jiang J. Synthesis and properties of Sm‐TiO
2
coupled with g‐C
3
N
4
for improved photocatalytic degradation toward methylene blue and tetracycline under visible‐light irradiation. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6626] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tianyi Cui
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps College of Chemistry and Chemical Engineering, Tarim University, Alar Xinjiang China
| | - Yuan Zhang
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps College of Chemistry and Chemical Engineering, Tarim University, Alar Xinjiang China
| | - Yumin Yan
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps College of Chemistry and Chemical Engineering, Tarim University, Alar Xinjiang China
| | - Jianbo Zhao
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps College of Chemistry and Chemical Engineering, Tarim University, Alar Xinjiang China
| | - Kezhen Qi
- Institute of Catalysis for Energy and Environment, College of Chemistry and Chemical Engineering Shenyang Normal University Shenyang China
| | - Jianhui Jiang
- Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of Xinjiang Production and Construction Corps College of Chemistry and Chemical Engineering, Tarim University, Alar Xinjiang China
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16
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Mohammadi N, Allahresani A, Naghizadeh A. Enhanced photo-catalytic degradation of natural organic matters (NOMs) with a novel fibrous silica-copper sulfide nanocomposite (KCC1-CuS). J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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A Novel N-Doped Nanoporous Bio-Graphene Synthesized from Pistacia lentiscus Gum and Its Nanocomposite with WO 3 Nanoparticles: Visible-Light-Driven Photocatalytic Activity. Molecules 2021; 26:molecules26216569. [PMID: 34770977 PMCID: PMC8588091 DOI: 10.3390/molecules26216569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 10/23/2021] [Accepted: 10/27/2021] [Indexed: 11/16/2022] Open
Abstract
This paper reports the synthesis of a new nitrogen-doped porous bio-graphene (NPBG) with a specific biomorphic structure, using Pistacia lentiscus as a natural carbon source containing nitrogen that also acts as a bio-template. The obtained NPBG demonstrated the unique feature of doped nitrogen with a 3D nanoporous structure. Next, a WO3/N-doped porous bio-graphene nanocomposite (WO3/NPBG-NC) was synthesized, and the products were characterized using XPS, SEM, TEM, FT-IR, EDX, XRD, and Raman analyses. The presence of nitrogen doped in the structure of the bio-graphene (BG) was confirmed to be pyridinic-N and pyrrolic-N with N1 peaks at 398.3 eV and 400.5 eV, respectively. The photocatalytic degradation of the anionic azo dyes and drugs was investigated, and the results indicated that the obtained NPBG with a high surface area (151.98 m2/g), unique electronic properties, and modified surface improved the adsorption and photocatalytic properties in combination with WO3 nanoparticles (WO3-NPs) as an effective visible-light-driven photocatalyst. The synthesized WO3/NPBG-NC with a surface area of 226.92 m2/g displayed lower bandgap and higher electron transfer compared with blank WO3-NPs, leading to an increase in the photocatalytic performance through the enhancement of the separation of charge and a reduction in the recombination rate. At the optimum conditions of 0.015 g of the nanocomposite, a contact time of 15 min, and 100 mg/L of dyes, the removal percentages were 100%, 99.8%, and 98% for methyl red (MR), Congo red (CR), and methyl orange (MO), respectively. In the case of the drugs, 99% and 87% of tetracycline and acetaminophen, respectively, at a concentration of 10 mg/L, were removed after 20 min.
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18
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Qi Y, Li C, Li H, Yang H, Guan J. Elimination or Removal of Ethylene for Fruit and Vegetable Storage via Low-Temperature Catalytic Oxidation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:10419-10439. [PMID: 34463513 DOI: 10.1021/acs.jafc.1c02868] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ethylene acts as an important hormone to trigger the ripening and senescence of fruits and vegetables (F&V). Thus, it is essential to eliminate trace ethylene and prevent F&V losses effectively. There are several technologies currently applying to control the ethylene concentration in the storage and transportation environment, including adsorption, gene modification, oxidation, etc. These protocols will be compared, and special attention will be paid to the low-temperature catalytic oxidation that has already been applied to practical production in this review. The active sites, supports, and reaction and deactivation mechanism of the catalysts for the low-temperature ethylene oxidation will be discussed and evaluated systematically to provide new insights for the development of effective catalysts, along with the suggestion of some perspectives for future research on this important catalytic system for F&V preservation.
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Affiliation(s)
- Ying Qi
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Chunli Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Hao Li
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Huaming Yang
- National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, Tianjin Key Laboratory of Chemical Process Safety, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Junfeng Guan
- Institute of Genetics and Physiology, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang, Hebei 050051, People's Republic of China
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19
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Muzaffar T, Khosa RY, Iftikhar U, Obodo RM, Sajjad S, Usman M. Synthesis and Characterization of WO3/GO Nanocomposites for Antimicrobial Properties. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02116-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Song T, Zhang X, Yang P. Bifunctional Nitrogen-Doped Carbon Dots in g-C 3N 4/WO x Heterojunction for Enhanced Photocatalytic Water-Splitting Performance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:4236-4247. [PMID: 33793245 DOI: 10.1021/acs.langmuir.1c00210] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A novel metal-free all-solid-state z-scheme g-C3N4/NCDs/WOx photocatalyst was fabricated using nitrogen-doped carbon dots (NCDs) as the electron mediator. As-prepared sandwich-structured composites displayed enhanced visible and NIR light photocatalytic activity. Under visible light irradiation, the hydrogen evolution rate reached 3.27 mmol g-1 h-1, which increased to roughly seven times higher than that of pure g-C3N4 and roughly twice that of g-C3N4/NCDs or g-C3N4/WOx binary heterojunctions. The apparent quantum efficiency is 7.58% at 420 nm. The localized surface plasmon resonance effect of WOx and the up-converted photoluminescence property of NCDs enhanced the utilization efficiency of NIR light together. In addition, the matched energy band structures of WOx and g-C3N4 as well as the effective electron conductor (NCDs) between them accelerate electron transfer at the interface. The all-solid-state z-scheme g-C3N4/NCDs/WOx photocatlyst was confirmed by a series of characterizations and experiment results. This report offered new insights into constructing an efficient all-solid-state z-scheme photocatalyst to be applied during the photocatalytic water-splitting reaction in the visible and NIR light regions.
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Affiliation(s)
- Tong Song
- School of Material Science & Engineering, University of Jinan, Jinan 250022, P R China
| | - Xiao Zhang
- W/A School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Perth WA6845, Australia
| | - Ping Yang
- School of Material Science & Engineering, University of Jinan, Jinan 250022, P R China
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21
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Wei Z, Wang W, Li W, Bai X, Zhao J, Tse ECM, Phillips DL, Zhu Y. Steering Electron–Hole Migration Pathways Using Oxygen Vacancies in Tungsten Oxides to Enhance Their Photocatalytic Oxygen Evolution Performance. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016170] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhen Wei
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Wenchao Wang
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Wenlu Li
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Xueqin Bai
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Jianfeng Zhao
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Edmund C. M. Tse
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- HKU-CAS Joint Laboratory on New Materials University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- HKU Zhejiang Institute of Research and Innovation Zhejiang 311305 P. R. China
| | - David Lee Phillips
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials P. R. China
| | - Yongfa Zhu
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
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22
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Wei Z, Wang W, Li W, Bai X, Zhao J, Tse ECM, Phillips DL, Zhu Y. Steering Electron–Hole Migration Pathways Using Oxygen Vacancies in Tungsten Oxides to Enhance Their Photocatalytic Oxygen Evolution Performance. Angew Chem Int Ed Engl 2021; 60:8236-8242. [DOI: 10.1002/anie.202016170] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/04/2021] [Indexed: 01/08/2023]
Affiliation(s)
- Zhen Wei
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Wenchao Wang
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Wenlu Li
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Xueqin Bai
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Jianfeng Zhao
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
| | - Edmund C. M. Tse
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- HKU-CAS Joint Laboratory on New Materials University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- HKU Zhejiang Institute of Research and Innovation Zhejiang 311305 P. R. China
| | - David Lee Phillips
- Department of Chemistry University of Hong Kong Pokfulam Road Hong Kong SAR P. R. China
- Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials P. R. China
| | - Yongfa Zhu
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
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23
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Abstract
The growing world energy consumption, with reliance on conventional energy sources and the associated environmental pollution, are considered the most serious threats faced by mankind. Heterogeneous photocatalysis has become one of the most frequently investigated technologies, due to its dual functionality, i.e., environmental remediation and converting solar energy into chemical energy, especially molecular hydrogen. H2 burns cleanly and has the highest gravimetric gross calorific value among all fuels. However, the use of a suitable electron donor, in what so-called “photocatalytic reforming”, is required to achieve acceptable efficiency. This oxidation half-reaction can be exploited to oxidize the dissolved organic pollutants, thus, simultaneously improving the water quality. Such pollutants would replace other potentially costly electron donors, achieving the dual-functionality purpose. Since the aromatic compounds are widely spread in the environment, they are considered attractive targets to apply this technology. In this review, different aspects are highlighted, including the employing of different polymorphs of pristine titanium dioxide as photocatalysts in the photocatalytic processes, also improving the photocatalytic activity of TiO2 by loading different types of metal co-catalysts, especially platinum nanoparticles, and comparing the effect of various loading methods of such metal co-catalysts. Finally, the photocatalytic reforming of aromatic compounds employing TiO2-based semiconductors is presented.
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24
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Barik R, Yadav AK, Jha SN, Bhattacharyya D, Ingole PP. Two-Dimensional Tungsten Oxide/Selenium Nanocomposite Fabricated for Flexible Supercapacitors with Higher Operational Voltage and Their Charge Storage Mechanism. ACS APPLIED MATERIALS & INTERFACES 2021; 13:8102-8119. [PMID: 33591180 DOI: 10.1021/acsami.0c15818] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The present work elaborates the high-energy-density, stable, and flexible supercapacitor devices (full-cell configuration with asymmetric setup) based on a two-dimensional tungsten oxide/selenium (2D WO3/Se) nanocomposite. For this, the 2D WO3/Se nanocomposite synthesized by a hydrothermal method followed by air annealing was coated on a flexible carbon cloth current collector and combined separately with both 0.1 M H2SO4 and 1-butyl-3-methyl imidazolium tetrafluoroborate room temperature ionic liquid (BmimBF4 RTIL) as electrolyte. Different physicochemical characterization techniques, viz., transmission electron microscopy, scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy, are utilized for phase confirmation and morphology identification of the obtained samples. The electrochemical analysis was used to evaluate charge storage mechanism. The half-cell configuration (three electrode system) in 0.1 M H2SO4 shows a specific capacitance of 564 F g-1 at 6 A g-1 current density, whereas with ionic liquid as electrolyte, a higher specific capacitance of 1650 F g-1 was obtained at a higher current of 40 mA and working potential of 4 V. Importantly, the asymmetric flexible supercapacitor device with PVA-H2SO4 electrolyte shows a working voltage of 1.7 V. A specific capacitance of 858 mF g-1 is obtained for the asymmetric electrode system with an energy density of 47 mWh kg-1 and a power density of 345 mW kg-1 at a current density of 0.2 A g-1.
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Affiliation(s)
- Rasmita Barik
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Ashok Kumar Yadav
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400094, India
| | - Shambhu Nath Jha
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400094, India
| | - Dibyendu Bhattacharyya
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400094, India
| | - Pravin P Ingole
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016, India
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25
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Synthesis of CaxCu3-xTi4O12 Perovskite Materials and House-Hold LED Light Mediated Degradation of Rhodamine Blue Dye. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01929-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Nickel and sulfur codoped TiO2 nanoparticles for efficient visible light photocatalytic activity. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01914-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
AbstractIn this work, Nickel (Ni) and sulfur (S) codoped TiO2 nanoparticles were prepared by a sol-gel technique. The as-prepared catalyst was characterized using X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR), FT-Raman spectroscopy, scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectra (DRS) for investigating crystal structure, crystal phase, particle size and bandgap energy of these samples. The photocatalytic performances of all the prepared catalysts have been investigated for the degradation of methylene blue (MB) under visible light irradiation. It was noticed that Ni-S codoped TiO2(Ni-S/TiO2) nanoparticles exhibited much higher photocatalytic activity compared with pure, Ni and S doped TiO2 due to higher visible light absorption and probable decrease in the recombination of photo-generated charges. It was decided that the great visible light absorption was created for codoped TiO2 by the formation of impurity energy states near both the edges of the collection, which works as trapping sites for both the photogenerated charges to decrease the recombination process.
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27
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Zhai H, Liu X, Wang Z, Liu Y, Zheng Z, Qin X, Zhang X, Wang P, Huang B. ZnO nanorod decorated by Au-Ag alloy with greatly increased activity for photocatalytic ethylene oxidation. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63473-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Liu Y, Dai Z, Yao Z, Zheng G, Ma Y. The photocatalytic performance for Mn‐doping SrMoO
4
reduced in H
2
/N
2
mixture atmospheres. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5745] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yong‐Lai Liu
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials ScienceAnhui University Hefei 230039 China
| | - Zhen‐Xiang Dai
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials ScienceAnhui University Hefei 230039 China
| | - Zi‐Feng Yao
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials ScienceAnhui University Hefei 230039 China
| | - Gan‐Hong Zheng
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials ScienceAnhui University Hefei 230039 China
| | - Yong‐Qing Ma
- Anhui key Laboratory of Information Materials and Devices, School of Physics and Materials ScienceAnhui University Hefei 230039 China
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Choi JH, Hong JA, Son YR, Wang J, Kim HS, Lee H, Lee H. Comparison of Enhanced Photocatalytic Degradation Efficiency and Toxicity Evaluations of CeO 2 Nanoparticles Synthesized Through Double-Modulation. NANOMATERIALS 2020; 10:nano10081543. [PMID: 32781774 PMCID: PMC7466517 DOI: 10.3390/nano10081543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 01/03/2023]
Abstract
We demonstrated that Fe/Cr doped and pH-modified CeO2 nanoparticles (NPs) exhibit enhanced photocatalytic performance as compared to bare CeO2 NPs, using photocatalytic degradation. To assess the toxicity level of these double-modified CeO2 NPs on the human skin, they were introduced into HaCaT cells. The results of our conventional cellular toxicity assays (neutral red uptake and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide for assays) indicated that Cr@CeOx NPs prompt severe negative effects on the viability of human cells. Moreover, the results obtained by scanning transmission X-ray microscopy and bio-transmission electron microscope analysis showed that most of the NPs were localized outside the nucleus of the cells. Thus, serious genetic toxicity was unlikely. Overall, this study highlights the need to prevent the development of Cr@CeOx NP toxicity. Moreover, further research should aim to improve the photocatalytic properties and activity of these NPs while accounting for their stability issues.
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Affiliation(s)
- Jang Hyun Choi
- Department of Biological Sciences, College of Natural Science, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Korea;
| | - Jung-A Hong
- Department of Chemistry, Sookmyung Women’s University, Seoul 04310, Korea;
| | - Ye Rim Son
- Department of Chemistry, Pukyong National University, Busan 48513, Korea;
| | - Jian Wang
- Canadian Light Source and University of Saskatchewan, 44 Innovation Boulevard, Saskatoon, SK S7N 2 V3, Canada;
| | - Hyun Sung Kim
- Department of Chemistry, Pukyong National University, Busan 48513, Korea;
- Correspondence: (H.S.K.); (H.L.); (H.L.); Tel.: +82-2-710-9409 (Hangil Lee)
| | - Hansol Lee
- Department of Biological Sciences, College of Natural Science, Inha University, 100 Inha-ro, Michuhol-gu, Incheon 22212, Korea;
- Correspondence: (H.S.K.); (H.L.); (H.L.); Tel.: +82-2-710-9409 (Hangil Lee)
| | - Hangil Lee
- Department of Chemistry, Sookmyung Women’s University, Seoul 04310, Korea;
- Correspondence: (H.S.K.); (H.L.); (H.L.); Tel.: +82-2-710-9409 (Hangil Lee)
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30
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Wang P, Li M, Song T, Yang P, Gao G. WO 3-x horizontally-grown on TiO 2(B) nanosheets for enhanced photo- and electro-chemical activity. NANOTECHNOLOGY 2020; 31:425605. [PMID: 32516758 DOI: 10.1088/1361-6528/ab9aef] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
WO3-x was deposited on TiO2(B) nanosheets prepared using TiCl4 to form layered heterostructures via a two-step solvothermal synthesis, in which the horizontal growth of WO3-x on TiO2(B) nanosheets was carried out using WCl6 and ascorbic acid as a reducer. Optimized preparation conditions allowed WO3-x/TiO2(B) layered heterostructures to be formed. The photo- and electro-chemical properties of layered heterostructures depended strongly on the amount of WO3-x. The WO3-x/TiO2(B) heterostructures demonstrated perfect catalytic performance in full solar-spectrum light and a fast degradation effect for dye and organic colorless pollutant. All target chemicals were degraded within 10 min using WO3-x/TiO2(B) samples as a photo-catalyst in the full solar-spectrum. The photo-assisted production kinetic of Cr(VI) ions were tested. The results indicate that the reproduction rate of Cr(VI) ions using WO3-x/TiO2(B) sample is three times higher than the initial TiO2 nanosheets. The result of the photo current and Mott-Shottky curve indicates that enhanced catalysis activity is ascribed to the surface of the metastable TiO2(B) with Ti3+ defects and oxygen vacancies as active sites for photocatalytic reaction. In addition, the loading of WO3-x greatly broadened the light absorption range of TiO2(B), meaning that the product responded in the full solar spectrum.
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Affiliation(s)
- Peng Wang
- School of Material Science and Engineering, University of Jinan, Jinan 250022, People's Republic of China
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31
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Jo YW, Loka C, Lee KS, Lim JH. Fabrication of Ag 2O/WO 3 p-n heterojunction composite thin films by magnetron sputtering for visible light photocatalysis. RSC Adv 2020; 10:16187-16195. [PMID: 35493680 PMCID: PMC9052880 DOI: 10.1039/d0ra01579b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/15/2020] [Indexed: 12/14/2022] Open
Abstract
Semiconductor-based nanostructures which are photo-catalytically active upon solar light irradiation were extensively used for environmental remediation due to the potential decomposition of various kinds of pollutants. In this work, we report the preparation of a sustainable thin film composite, i.e. Ag2O/WO3 p–n heterojunction, and investigation of its photocatalytic activity. To achieve the composite structure, WO3/Ag–WO3 layers were deposited over a quartz substrate by magnetron sputtering at room temperature and subsequently annealed at 823 to 923 K. The thin film structure, morphology, and chemical states were thoroughly characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron spectroscopy, and X-ray photoelectron spectroscopy. The obtained results revealed that the amorphous Ag-doped WO3 was crystallized into monoclinic WO3 and Ag2O, in which nanocrystalline Ag2O was diffused towards the surface of WO3. Optical transmittance spectra recorded by UV-vis-NIR spectroscopy revealed that the WO3/Ag–WO3 films became transparant in the visible region after annealing at high temperature (873 K and 923 K). The Ag2O/WO3 p–n heterojunction composite thin films showed high photocatalytic activity (0.915 × 10−3 min−1) under visible light irradiation, which is attributed to the efficiency of effective photogenerated charge-carrier formation and the reduced recombination rate of photogenerated electron–hole pairs. Unlike the powder-based photocatalysts, the reported thin film-based heterojunction photocatalyst could be very sustainable, and cost-effective. Semiconductor-based nanostructures which are photo-catalytically active upon solar light irradiation were extensively used for environmental remediation due to the potential decomposition of various kinds of pollutants.![]()
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Affiliation(s)
- Young Woong Jo
- Department of Advanced Materials Engineering, Smart Natural Space Research Centre, Kongju National University Cheonan-31080 South Korea
| | - Chadrasekhar Loka
- Department of Advanced Materials Engineering, Smart Natural Space Research Centre, Kongju National University Cheonan-31080 South Korea
| | - Kee-Sun Lee
- Department of Advanced Materials Engineering, Smart Natural Space Research Centre, Kongju National University Cheonan-31080 South Korea
| | - Jae-Hyun Lim
- Department of Computer Science and Engineering, Kongju National University Cheonan 331-717 South Korea
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32
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Chen C, Li M, Jia Y, Chong R, Xu L, Liu X. Surface defect-engineered silver silicate/ceria p-n heterojunctions with a flower-like structure for boosting visible light photocatalysis with mechanistic insight. J Colloid Interface Sci 2020; 564:442-453. [DOI: 10.1016/j.jcis.2019.12.128] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 12/21/2019] [Accepted: 12/28/2019] [Indexed: 01/09/2023]
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33
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Liu Q, Li N, Qiao Z, Li W, Wang L, Zhu S, Jing Z, Yan T. The Multiple Promotion Effects of Ammonium Phosphate-Modified Ag 3PO 4 on Photocatalytic Performance. Front Chem 2020; 7:866. [PMID: 31921784 PMCID: PMC6937216 DOI: 10.3389/fchem.2019.00866] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 12/02/2019] [Indexed: 11/13/2022] Open
Abstract
Phosphate ( PO 4 3 - ) modification of semiconductor photocatalysts such as TiO2, C3N4, BiVO4, and etc. has been shown positive effect on the enhancement of photocatalytic performance. In the present study, we demonstrate a novel one-pot surface modification route on Ag3PO4 photocatalyst by ammonium phosphate [(NH4)3PO4], which combines PO 4 3 - modification with ammonium ( NH 4 + ) etching to show multiple effects on the structural variation of Ag3PO4 samples. The modified Ag3PO4 photocatalysts exhibit much higher photocatalytic performance than bare Ag3PO4 for the degradation of organic dye solutions under visible light irradiation. It is indicated that the NH 4 + etching favors the surface transition from Ag3PO4 to metallic Ag nanoparticles, resulting in the fast capture of photogenerated electrons and the followed generation of O 2 · - radicals. The strongly adsorbed PO 4 3 - on the Ag3PO4 surfaces can further provide more negative electrostatic field, which improves the separation of photogenerated electron-hole pairs by inducing the holes to directly flow to the surface and then enhances the formation of reactive ·OH radicals. Furthermore, the photocatalytic performance of the modified Ag3PO4 photocatalysts can be optimized by monitoring the concentration of (NH4)3PO4 that is 1 mM.
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Affiliation(s)
- Qin Liu
- The Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu, China
| | - Na Li
- Qufu Normal University Library, Qufu Normal University, Qufu, China
| | - Zheng Qiao
- The Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu, China
| | - Wenjuan Li
- The Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu, China
| | - Linlin Wang
- The Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu, China
| | - Shuao Zhu
- The Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu, China
| | - Zhihong Jing
- The Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu, China
| | - Tingjiang Yan
- The Key Laboratory of Life-Organic Analysis, College of Chemistry and Chemical Engineering, Qufu, China
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34
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Chen Y, Fang J, Dai B, Wei H, Kou J, Lu C. Seaweed bio-inspired ZnO piezoelectric cilia array applied in microreactors for enhanced photocatalytic performance. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02509j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A piezoelectric built-in electric field is believed to be an effective way to separate photoinduced carriers and enhance photocatalytic performance.
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Affiliation(s)
- Yukai Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Jiaojiao Fang
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Baoying Dai
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Huimin Wei
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Jiahui Kou
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
| | - Chunhua Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Materials Science and Engineering
- Nanjing Tech University
- Nanjing 210009
- P. R. China
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35
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Abazari R, Morsali A, Dubal DP. An advanced composite with ultrafast photocatalytic performance for the degradation of antibiotics by natural sunlight without oxidizing the source over TMU-5@Ni–Ti LDH: mechanistic insight and toxicity assessment. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00050g] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pharmaceuticals are considered as emerging organic contaminants that have become a serious environmental problem, which endanger human health and environmental bio-diversity.
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Affiliation(s)
- Reza Abazari
- Department of Chemistry
- Tarbiat Modares University
- Tehran
- Iran
| | - Ali Morsali
- Department of Chemistry
- Tarbiat Modares University
- Tehran
- Iran
| | - Deepak P. Dubal
- Centre for Materials Science
- Queensland University of Technology (QUT)
- Brisbane
- Australia
- School of Chemistry and Physics
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36
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Cui Z, Liu X, Liang X, Wang P, Zhang Q, Wang Z, Zheng Z, Liu Y, Dai Y, Huang B. ZnO nanorods modified with noble metal-free Co3O4 nanoparticles as a photocatalyst for efficient ethylene degradation under light irradiation. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01732a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ZnO modified with noble metal-free Co3O4 nanoparticles was prepared by a simple method and showed good stability and high efficiency for photo-oxidizing ethylene.
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Affiliation(s)
- Zihao Cui
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Xiaolei Liu
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Xizhuang Liang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Peng Wang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Qianqian Zhang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Zeyan Wang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Zhaoke Zheng
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Yuanyuan Liu
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Ying Dai
- School of Physics
- Shandong University
- Jinan 250100
- China
| | - Baibiao Huang
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
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