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Biswas A, Sharma MD, Kapse S, Samui S, Thapa R, Gupta S, Sudarshan K, Dey RS. Coordination Structure Modulation in Group-VIB Metal Doped Ag 3PO 4 Augments Active Site Density for Electrocatalytic Conversion of N 2 to NH 3. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402006. [PMID: 38898725 DOI: 10.1002/smll.202402006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/08/2024] [Indexed: 06/21/2024]
Abstract
Doping is considered a promising material engineering strategy in electrochemical nitrogen reduction reaction (NRR), provided the role of the active site is rightly identified. This work concerns the doping of group VIB metal in Ag3PO4 to enhance the active site density, accompanied by d-p orbital mixing at the active site/N2 interface. Doping induces compressive strain in the Ag3PO4 lattice and inherently accompanies vacancy generation, the latter is quantified with positron annihilation lifetime studies (PALS). This eventually alters the metal d-electronic states relative to Fermi level and manipulate the active sites for NRR resulting into side-on N2 adsorption at the interface. The charge density deployment reveals Mo as the most efficient dopant, attaining a minimum NRR overpotential, as confirmed by the detailed kinetic study with the rotating ring disk electrode (RRDE) technique. In fact, the Pt ring of RRDE fails to detect N2H4, which is formed as a stable intermediate on the electrode surface, as identified from in-situ attenuated total reflectance-infrared (ATR-IR) spectroscopy. This advocates the complete conversion of N2 to NH3 on Mo/Ag3PO4-10 and the so-formed oxygen vacancies formed during doping act as proton scavengers suppressing hydrogen evolution reaction resulting into a Faradaic efficiency of 54.8% for NRR.
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Affiliation(s)
- Ashmita Biswas
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab, 140306, India
| | - Mamta Devi Sharma
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab, 140306, India
| | - Samadhan Kapse
- Department of Physics, SRM University, Amaravati, Andhra Pradesh, 522240, India
| | - Surajit Samui
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab, 140306, India
| | - Ranjit Thapa
- Department of Physics, SRM University, Amaravati, Andhra Pradesh, 522240, India
- Centre for Computational and Integrative Sciences, SRM University, Amaravati, Andhra Pradesh, 522240, India
| | - Santosh Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Kathi Sudarshan
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400094, India
| | - Ramendra Sundar Dey
- Institute of Nano Science and Technology, Sector-81, Mohali, Punjab, 140306, India
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2
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Takeno M, Nobre FX, da Costa FF, Botelho do Nascimento MV, Pessoa Júnior WA, Araújo Júnior EA, Sousa GDS, de Sá ML, Gurgel RS, Albuquerque P, Matos JMD, Leyet Ruiz Y, Grandini CR. Solvent Effect on the Structural, Optical, Morphology, and Antimicrobial Activity of Silver Phosphate Microcrystals by Conventional Hydrothermal Method. ACS OMEGA 2024; 9:23069-23085. [PMID: 38826548 PMCID: PMC11137729 DOI: 10.1021/acsomega.4c02943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/26/2024] [Accepted: 05/08/2024] [Indexed: 06/04/2024]
Abstract
The design of particle size and morphology are a promising approach to investigating the properties exhibited by different types of materials. In the present study, the silver phosphate microcrystals (Ag3PO4) were first time synthesized using the hydrothermal and solvothermal method by combination of the solvents water/isopropyl alcohol (SP-IA), water/acetone (SP-AC), water/ammonium hydroxide (AP-AH), all in a ratio of 1:1 (v/v). The synthesized materials were structurally characterized by X-ray diffraction (XRD), Rietveld refinement, and Raman vibrational spectroscopy, where it was confirmed that the pure phase was achieved for all prepared samples. The study of the optical properties by UV-vis diffuse reflectance spectroscopy (UV-vis/DRS) and colorimetry revealed that the obtained materials have an optical bandgap between 2.30 and 2.32 eV. The FE-SEM images collected revealed different morphologies for the synthesized materials, with a predominance of tetraploid-shaped microcrystals for the SP-AC sample, rods for the SP-IA sample, cubes and polyhedral for the SP-WT sample and condensed polyhedral for the SP-AH sample. The photocatalytic performance against the Rhodamine B dye (RhB) was 100%, 98.2%, 94.2%, and 87.8%, using the samples SP-AC, SP-IA, SP-WT, and SP-AH as photocatalyst at time of 12 min. On the other hand, the antimicrobial performance of SP-AC sample showed superior performance, resulting in the minimum inhibitory concentration-MIC of 7.81 μg mL-1 for the strain of E. coli, 7.81 μg mL-1 for the strain of E. aureus, 15.62 μg mL-1 for the strain of P. auruginosa, and 15.62 μg mL-1 for the strains of C. albicans. In this way, was synthesized a promissory antimicrobial and photocatalyst material, through an easy and cost-effective method.
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Affiliation(s)
- Mitsuo
Lopes Takeno
- Department
of Chemistry, Environment, and Food (DQA), Group of Energy Resources
and Nanomaterials (GREEN), Federal Institute of Education, Science and Technology of Amazonas, Campus Manaus Centro, Manaus, 69020-120, AM Brazil
| | - Francisco Xavier Nobre
- Department
of Chemistry, Environment, and Food (DQA), Group of Energy Resources
and Nanomaterials (GREEN), Federal Institute of Education, Science and Technology of Amazonas, Campus Manaus Centro, Manaus, 69020-120, AM Brazil
| | - Fagner Ferreira da Costa
- Department
of Chemistry, Environment, and Food (DQA), Group of Energy Resources
and Nanomaterials (GREEN), Federal Institute of Education, Science and Technology of Amazonas, Campus Manaus Centro, Manaus, 69020-120, AM Brazil
| | - Marcus Valério Botelho do Nascimento
- Department
of Chemistry, Environment, and Food (DQA), Group of Energy Resources
and Nanomaterials (GREEN), Federal Institute of Education, Science and Technology of Amazonas, Campus Manaus Centro, Manaus, 69020-120, AM Brazil
| | - Wanison André
Gil Pessoa Júnior
- Department
of Chemistry, Environment, and Food (DQA), Group of Energy Resources
and Nanomaterials (GREEN), Federal Institute of Education, Science and Technology of Amazonas, Campus Manaus Centro, Manaus, 69020-120, AM Brazil
| | - Edgar Alves Araújo Júnior
- Interdisciplinar
Laboratory of Advanced Materials-LIMAV, Federal University of Piauí-UFPI, Teresina, 64049-550 PI Brazil
| | - Giancarlo da Silva Sousa
- Interdisciplinar
Laboratory of Advanced Materials-LIMAV, Federal University of Piauí-UFPI, Teresina, 64049-550 PI Brazil
| | - Marcel Leiner de Sá
- Interdisciplinar
Laboratory of Advanced Materials-LIMAV, Federal University of Piauí-UFPI, Teresina, 64049-550 PI Brazil
| | - Raiana Silveira Gurgel
- Research
Group on Chemistry Applied to Technology, School of Technology, Amazonas State University, Manaus 69050-020, Brazil
| | - Patrícia
Melchionna Albuquerque
- Research
Group on Chemistry Applied to Technology, School of Technology, Amazonas State University, Manaus 69050-020, Brazil
| | - José Milton
Elias de Matos
- Interdisciplinar
Laboratory of Advanced Materials-LIMAV, Federal University of Piauí-UFPI, Teresina, 64049-550 PI Brazil
| | - Yurimiler Leyet Ruiz
- Department
of Materials Engineering, Laboratory of Processing of Technological
Materials (LPMaT), Federal University of
Amazonas, Faculty of Technology, Rua Av. General Rodrigo Otávio Jordão Ramos, 1200,
Coroado I, Manaus, 69067-005, Brazil
| | - Carlos Roberto Grandini
- Laboratório
de Anelasticidade e Biomateriais, UNESP−Universidade
Estadual Paulista, Bauru 17033-360, SP Brazil
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3
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Prasanna SB, Kumar GS, Sakthivel R, Shanthakumar KC, Lin LY, Duann YF, Lin YC, Lu YC, Chung RJ. Dual Z-scheme heterojunction Ce 2Sn 2O 7/Ag 3PO 4/V@g-C 3N 4 for increased photocatalytic degradation of the food additive tartrazine, in the presence of persulfate: Kinetics, toxicity, and density functional theory studies. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124196. [PMID: 38788992 DOI: 10.1016/j.envpol.2024.124196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
This study involved the synthesis of a Ce2Sn2O7/Ag3PO4/V@g-C3N4 composite through hydrothermal methods, followed by mechanical grinding. The resulting heterojunction exhibited improved catalytic activity under visible light by effectively separating electrons and holes (e-/h+). The degradation of Tartrazine (TTZ) reached 93.20% within 50 min by employing a ternary composite at a concentration of 10 mg L-1, along with 6 mg L-1 of PS. The highest pseudo-first-order kinetic constant (0.1273 min-1 and R2 = 0.951) was observed in this system. The dual Z-scheme heterojunction is developed by Ce2Sn2O7, Ag3PO4, and V@g-C3N4, and it may increase the visible light absorption range while also accelerating charge carrier transfer and separation between catalysts. The analysis of the vulnerability positions and degradation pathways of TTZ involved the utilization of density functional theory (DFT) and gas chromatography-mass spectrometry (GC-MS) to examine the intermediate products. Therefore, Ce2Sn2O7/Ag3PO4/V@g-C3N4 is an excellent ternary nanocomposite for the remediation of pollutants.
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Affiliation(s)
- Sanjay Ballur Prasanna
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan
| | | | - Rajalakshmi Sakthivel
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan
| | | | - Lu-Yin Lin
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan
| | - Yeh-Fang Duann
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan
| | - Yu-Chien Lin
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan; School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Yu-Chun Lu
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan; ZhongSun Co., LTD, New Taipei City 220031, Taiwan
| | - Ren-Jei Chung
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan; High-value Biomaterials Research and Commercialization Center, National Taipei University of Technology (Taipei Tech), Taipei 10608, Taiwan.
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4
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Khiar H, Janani FZ, Sadiq M, Mansouri S, Puga A, Barka N. Effect of indium (III) doping on Ag 3PO 4 catalyst stabilization and its visible light photocatalytic activity toward toxic dyes in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:100785-100798. [PMID: 37640975 DOI: 10.1007/s11356-023-29429-1] [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: 06/02/2023] [Accepted: 08/17/2023] [Indexed: 08/31/2023]
Abstract
Indium(III)-doped Ag3PO4 (In-AgP) catalysts at different weight percentages were elaborated by co-precipitation and subjected to XRD, SEM, UV-vis DRS, and FTIR characterization. The prepared catalysts were of spherical morphology and their diameters depends on doping dosage. The whole materials crystallize in a centered cubic system with a slight dissimilation in the positions of the characteristic peaks as a function of indium dosage. The photocatalytic performance of the catalysts under visible light was investigated in the photocatalytic degradation of anionic dye (methyl orange (MO)) and cationic dye (auramine O (AO)) in moderate acid, neutral, and basic pH conditions. Results showed more selectivity to MO than AO. Furthermore, indium-doped samples are more active in the acidic medium than the pure Ag3PO4 (AgP), and 10%In-AgP catalyst presents the highest activity. The degradation efficiency reached 99 % in 60 min for MO and in 180 min for AO. In addition, a high recycling stability was achieved and the catalyst retains its degradation capacity above 99 % after five cycles.
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Affiliation(s)
- Habiba Khiar
- Sultan Moulay Slimane University of Beni Mellal, Multidisciplinary Research and Innovation Laboratory, FP Khouribga, 145, 2500, Khouribga, BP, Morocco
| | - Fatima Zahra Janani
- Sultan Moulay Slimane University of Beni Mellal, Multidisciplinary Research and Innovation Laboratory, FP Khouribga, 145, 2500, Khouribga, BP, Morocco
| | - M'hamed Sadiq
- Sultan Moulay Slimane University of Beni Mellal, Multidisciplinary Research and Innovation Laboratory, FP Khouribga, 145, 2500, Khouribga, BP, Morocco
| | - Said Mansouri
- Materials Science Energy and Nanoengineering Department (MSN), Mohammed VI Polytechnic University (UM6P), Lot 660-Hay Moulay Rachid, 43150, Benguerir, Morocco
| | - Alberto Puga
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Avinguda dels Països Catalans, 26, 43007, Tarragona, Spain
| | - Noureddine Barka
- Sultan Moulay Slimane University of Beni Mellal, Multidisciplinary Research and Innovation Laboratory, FP Khouribga, 145, 2500, Khouribga, BP, Morocco.
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5
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Ganguli AK, Kunde GB, Raza W, Kumar S, Yadav P. Assessment of Performance of Photocatalytic Nanostructured Materials with Varied Morphology Based on Reaction Conditions. Molecules 2022; 27:molecules27227778. [PMID: 36431879 PMCID: PMC9696975 DOI: 10.3390/molecules27227778] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/13/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
Synthesis of nanomaterials with specific morphology is an essential aspect for the optimisation of its properties and applications. The application of nanomaterials is being discussed in a wide range of areas, one of which is directly relevant to the environment through photocatalysis. To produce an effective photocatalyst for environmental applications, morphology plays an important role as it affects the surface area, interfaces, crystal facets and active sites, which ultimately affects efficiency. The method of synthesis and synthesis temperature can be the basic considerations for the evaluation of a particular nanomaterial. In this study, we have considered the aspects of morphology with a basic understanding and analyzed them in terms of nanomaterial efficacy in photocatalysis. Different morphologies of specific nanomaterials such as titanium dioxide, zinc oxide, silver phosphate, cadmium sulphide and zinc titanate have been discussed to come to reasonable conclusions. Morphologies such as nanorods, nanoflower, nanospindles, nanosheets, nanospheres and nanoparticles were compared within and outside the domain of given nanomaterials. The different synthesis strategies adopted for a specific morphology have been compared with the photocatalytic performance. It has been observed that nanomaterials with similar band gaps show different performances, which can be linked with the reaction conditions and their nanomorphology as well. Materials with similar morphological structures show different photocatalytic performances. TiO2 nanorods appear to have the best features of efficient photocatalyst, while the nanoflowers show very low efficiency. For CdS, the nanoflower is the best morphology for photocatalysis. It appears that high surface area is the key apart from the morphology, which controls the efficiency. The overall understanding by analyzing all the available information has enumerated a path to select an effective photocatalyst amongst the several nanomaterials available. Such an analysis and comparison is unique and has provided a handle to select the effective morphology of nanomaterials for photocatalytic applications.
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Affiliation(s)
- Ashok Kumar Ganguli
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
- Correspondence: (A.K.G.); (G.B.K.); Tel.: +91-11-26591511 (A.K.G.); +91-77-38611349 (G.B.K.)
| | - Gajanan B. Kunde
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
- Correspondence: (A.K.G.); (G.B.K.); Tel.: +91-11-26591511 (A.K.G.); +91-77-38611349 (G.B.K.)
| | - Waseem Raza
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sandeep Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Priyanka Yadav
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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6
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Ag3PO4 and Ag3PO4–based visible light active photocatalysts: Recent progress, synthesis, and photocatalytic applications. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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7
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A diagnosis approach for semiconductor properties evaluation from ab initio calculations: Ag-based materials investigation. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122670] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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8
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Nur Indah Sari F, Syue MT, Purba Y, Ting JM. Fabrication of binary Ag3PO4 photocatalysts for enhanced photocatalytic degradation: Effect of PEDOT hole conductor and hybridized 1 T-containing MoS2 electron conductor. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119650] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Ribeiro LK, Assis M, Lima LR, Coelho D, Gonçalves MO, Paiva RS, Moraes LN, Almeida LF, Lipsky F, San-Miguel MA, Mascaro LH, Grotto RMT, Sousa CP, Rosa ILV, Cruz SA, Andrés J, Longo E. Bioactive Ag 3PO 4/Polypropylene Composites for Inactivation of SARS-CoV-2 and Other Important Public Health Pathogens. J Phys Chem B 2021; 125:10866-10875. [PMID: 34546760 PMCID: PMC8482321 DOI: 10.1021/acs.jpcb.1c05225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/08/2021] [Indexed: 01/08/2023]
Abstract
The current unprecedented coronavirus pandemic (COVID-19) is increasingly demanding advanced materials and new technologies to protect us and inactivate SARS-CoV-2. In this research work, we report the manufacture of Ag3PO4 (AP)/polypropylene (PP) composites using a simple method and also reveal their long-term anti-SARS-CoV-2 activity. This composite shows superior antibacterial (against Staphylococcus aureus and Escherichia coli) and antifungal activity (against Candida albicans), thus having potential for a variety of technological applications. The as-manufactured materials were characterized by XRD, Raman spectroscopy, FTIR spectroscopy, AFM, UV-vis spectroscopy, rheology, SEM, and contact angle to confirm their structural integrity. Based on the results of first-principles calculations at the density functional level, a plausible reaction mechanism for the initial events associated with the generation of both hydroxyl radical •OH and superoxide radical anion •O2- in the most reactive (110) surface of AP was proposed. AP/PP composites proved to be an attractive avenue to provide human beings with a broad spectrum of biocide activity.
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Affiliation(s)
- Lara K. Ribeiro
- CDMF,
LIEC, Federal University of São Carlos—(UFSCar), São Carlos, São
Paulo 13565-905, Brazil
| | - Marcelo Assis
- CDMF,
LIEC, Federal University of São Carlos—(UFSCar), São Carlos, São
Paulo 13565-905, Brazil
- Department
of Physical and Analytical Chemistry, University
Jaume I (UJI), Castelló 12071, Spain
| | - Lais R. Lima
- Chemistry
Department, Federal University of São
Carlos (UFSCar), São Carlos, São Paulo 13565-905, Brazil
| | - Dyovani Coelho
- CDMF,
LIEC, Federal University of São Carlos—(UFSCar), São Carlos, São
Paulo 13565-905, Brazil
| | - Mariana O. Gonçalves
- Biomolecules
and Microbiology Laboratory (LaMiB), Biotechnology Graduation Program, Federal University of São Carlos (UFSCar), São Carlos, São
Paulo 13565-905, Brazil
| | - Robert S. Paiva
- Chemistry
Department, Federal University of São
Carlos (UFSCar), São Carlos, São Paulo 13565-905, Brazil
| | - Leonardo N. Moraes
- School
of Agriculture; São Paulo State University
(Unesp), Botucatu, São Paulo 18610-034, Brazil
- Molecular
Laboratory of Clinical Hospital of Botucatu, Medical School; São Paulo State University (Unesp), Botucatu, São Paulo 18618-687, Brazil
| | - Lauana F. Almeida
- School
of Agriculture; São Paulo State University
(Unesp), Botucatu, São Paulo 18610-034, Brazil
- Molecular
Laboratory of Clinical Hospital of Botucatu, Medical School; São Paulo State University (Unesp), Botucatu, São Paulo 18618-687, Brazil
| | - Felipe Lipsky
- Institute
of Chemistry, State University of Campinas
(Unicamp), Campinas, São Paulo 13083-970, Brazil
| | - Miguel A. San-Miguel
- Institute
of Chemistry, State University of Campinas
(Unicamp), Campinas, São Paulo 13083-970, Brazil
| | - Lúcia H. Mascaro
- CDMF,
LIEC, Federal University of São Carlos—(UFSCar), São Carlos, São
Paulo 13565-905, Brazil
| | - Rejane M. T. Grotto
- School
of Agriculture; São Paulo State University
(Unesp), Botucatu, São Paulo 18610-034, Brazil
- Molecular
Laboratory of Clinical Hospital of Botucatu, Medical School; São Paulo State University (Unesp), Botucatu, São Paulo 18618-687, Brazil
| | - Cristina P. Sousa
- Biomolecules
and Microbiology Laboratory (LaMiB), Biotechnology Graduation Program, Federal University of São Carlos (UFSCar), São Carlos, São
Paulo 13565-905, Brazil
| | - Ieda L. V. Rosa
- CDMF,
LIEC, Federal University of São Carlos—(UFSCar), São Carlos, São
Paulo 13565-905, Brazil
| | - Sandra A. Cruz
- Chemistry
Department, Federal University of São
Carlos (UFSCar), São Carlos, São Paulo 13565-905, Brazil
| | - Juan Andrés
- Department
of Physical and Analytical Chemistry, University
Jaume I (UJI), Castelló 12071, Spain
| | - Elson Longo
- CDMF,
LIEC, Federal University of São Carlos—(UFSCar), São Carlos, São
Paulo 13565-905, Brazil
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10
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One-step microwave-hydrothermal synthesis of visible-light-driven Ag3PO4/LaPO4 photocatalyst induced by visible light irradiation. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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11
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Mondal M, Ghosh M, Pradhan S. Spectacular photocatalytic activity of mechanosynthesized heterostructured Bi-Fe-O nanocomposites in wastewater treatment containing colored and colorless pollutants. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115317] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Microorganisms Photocatalytic Inactivation on Ag3PO4 Sub-Microcrystals Under WLEDs Light Source. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01930-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Trench AB, Machado TR, Gouveia AF, Foggi CC, Teodoro V, Sánchez-Montes I, Teixeira MM, da Trindade L, Jacomaci N, Perrin A, Perrin C, Aquino JM, Andrés J, Longo E. Rational Design of W-Doped Ag 3PO 4 as an Efficient Antibacterial Agent and Photocatalyst for Organic Pollutant Degradation. ACS OMEGA 2020; 5:23808-23821. [PMID: 32984701 PMCID: PMC7513369 DOI: 10.1021/acsomega.0c03019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 08/26/2020] [Indexed: 06/11/2023]
Abstract
Bacterial and organic pollutants are major problems with potential adverse impacts on human health and the environment. A promising strategy to alleviate these impacts consists in designing innovative photocatalysts with a wider spectrum of application. In this paper, we report the improved photocatalytic and antibacterial activities of chemically precipitated Ag3PO4 microcrystals by the incorporation of W at doping levels 0.5, 1, and 2 mol %. The presence of W directly influences the crystallization of Ag3PO4, affecting the morphology, particle size, and surface area of the microcrystals. Also, the characterization via experimental and theoretical approaches evidenced a high density of disordered [AgO4], [PO4], and [WO4] structural clusters due to the substitution of P5+ by W6+ into the Ag3PO4 lattice. This leads to new defect-related energy states, which decreases the band gap energy of the materials (from 2.27 to 2.04 eV) and delays the recombination of e'-h• pairs, leading to an enhanced degradation process. As a result of such behaviors, W-doped Ag3PO4 (Ag3PO4:W) is a better visible-light photocatalyst than Ag3PO4, demonstrated here by the photodegradation of potential environmental pollutants. The degradation of rhodamine B dye was 100% in 4 min for Ag3PO4:W 1%, and for Ag3PO4, the obtained result was 90% of degradation in 15 min of reaction. Ag3PO4:W 1% allowed the total degradation of cephalexin antibiotic in only 4 min, whereas pure Ag3PO4 took 20 min to achieve the same result. For the degradation of imidacloprid insecticide, Ag3PO4:W 1% allowed 90% of degradation, whereas Ag3PO4 allowed 40%, both in 20 min of reaction. Moreover, the presence of W-dopant results in a 16-fold improvement of bactericidal performance against methicillin-resistant Staphylococcus aureus. The outstanding results using the Ag3PO4:W material demonstrated its potential multifunctionality for the control of organic pollutants and bacteria in environmental applications.
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Affiliation(s)
- Aline B. Trench
- CDMF—Department
of Chemistry, Federal University of São
Carlos, 13565-905 São Carlos, SP, Brazil
| | - Thales R. Machado
- CDMF—Department
of Chemistry, Federal University of São
Carlos, 13565-905 São Carlos, SP, Brazil
| | - Amanda F. Gouveia
- Institute
of Chemistry, State University of Campinas, 13083-970 Campinas, SP, Brazil
| | - Camila C. Foggi
- CDMF—Department
of Chemistry, Federal University of São
Carlos, 13565-905 São Carlos, SP, Brazil
| | - Vinícius Teodoro
- CDMF—Department
of Chemistry, Federal University of São
Carlos, 13565-905 São Carlos, SP, Brazil
| | - Isaac Sánchez-Montes
- Department
of Chemistry, Federal University of São
Carlos, 13565-905 São Carlos, SP, Brazil
| | - Mayara M. Teixeira
- CDMF—Department
of Chemistry, Federal University of São
Carlos, 13565-905 São Carlos, SP, Brazil
| | | | - Natalia Jacomaci
- Chemistry
Institute, São Paulo State University, 14800-060 Araraquara, SP, Brazil
| | - Andre Perrin
- University
of Rennes 1, Campus de
Beaulieu, F-35042 Rennes-Cedex, France
| | - Christiane Perrin
- University
of Rennes 1, Campus de
Beaulieu, F-35042 Rennes-Cedex, France
| | - Jose M. Aquino
- Department
of Chemistry, Federal University of São
Carlos, 13565-905 São Carlos, SP, Brazil
| | - Juan Andrés
- Department
of Analytical and Physical Chemistry, University
Jaume I, 12071 Castellón, Spain
| | - Elson Longo
- CDMF—Department
of Chemistry, Federal University of São
Carlos, 13565-905 São Carlos, SP, Brazil
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14
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Silva LJ, Costa TMS, Lima MS, Cruz Filho JF, Costa MJS, Ferreira MVR, Martins FR, Santos RS, Luz GE. Synthesis of Magnetic Recoverable Ag3PO4/Fe3O4 Composites For Enhanced Visible Light Photocatalysis. J CLUST SCI 2020. [DOI: 10.1007/s10876-020-01879-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Lipsky F, Lacerda LHDS, de Lazaro SR, Longo E, Andrés J, San-Miguel MA. Unraveling the relationship between exposed surfaces and the photocatalytic activity of Ag 3PO 4: an in-depth theoretical investigation. RSC Adv 2020; 10:30640-30649. [PMID: 35516045 PMCID: PMC9056335 DOI: 10.1039/d0ra06045c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 08/11/2020] [Indexed: 12/17/2022] Open
Abstract
Over the years, the possibility of using solar radiation in photocatalysis or photodegradation processes has attracted remarkable interest from scientists around the world. In such processes, due to its electronic properties, Ag3PO4 is one of the most important semiconductors. This work delves into the photocatalytic activity, stability, and reactivity of Ag3PO4 surfaces by comparing plane waves with projector augmented wave and localized Gaussian basis set simulations, at the atomic level. The results indicate that the (110) surface, in agreement with previous experimental reports, displays the most suitable characteristics for photocatalytic activity due to its high reactivity, i.e. the presence of a large amount of undercoordinated Ag cations and a high value work function. Beyond the innovative results, this work shows a good synergy between both kinds of DFT approaches.
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Affiliation(s)
- Felipe Lipsky
- State University of Campinas Campinas São Paulo Brazil
| | | | | | - Elson Longo
- CDMF-UFSCAR, Federal University of São Carlos São Carlos São Paulo Brazil
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16
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Enhanced Photodegradation of Synthetic Dyes Mediated by Ag3PO4-Based Semiconductors under Visible Light Irradiation. Catalysts 2020. [DOI: 10.3390/catal10070774] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Four silver phosphate-based materials were successfully synthesized, characterized, and evaluated, together with TiO2, in the photodegradation of synthetic dyes (tartrazine, Orange II, rhodamine, and Brilliant Blue FCF) under two irradiation sources centered at 420 and 450 nm. Scanning Electron Microscopy (SEM) images showed different topologies of the synthesized materials, whereas diffuse reflectance spectra demonstrated that they display absorption up to 500 nm. Degradation experiments were performed in parallel with the silver materials and TiO2. Upon irradiation centered at 420 nm, the abatement of the dyes was slightly more efficient in the case of TiO2—except for Orange II. Nevertheless, upon irradiation centered at 450 nm, TiO2 demonstrated complete inefficiency and silver phosphates accomplished the complete abatement of the dyes—except for Brilliant Blue FCF. A careful analysis of the achieved degradation of dyes revealed that the main reaction mechanism involves electron transfer to the photogenerated holes in the valence band of silver photocatalysts, together with the direct excitation of dyes and the subsequent formation of reactive species. The performance of TiO2 was only comparable at the shorter wavelength when hydroxyl radicals could be formed; however, it could not compete under irradiation at 450 nm since the formed superoxide anion is not as reactive as hydroxyl radicals.
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17
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Silva FCM, Silva LKR, Santos AGD, Caldeira VPS, Cruz-Filho JF, Cavalcante LS, Longo E, Luz GE. Structural Refinement, Morphological Features, Optical Properties, and Adsorption Capacity of α-Ag2WO4 Nanocrystals/SBA-15 Mesoporous on Rhodamine B Dye. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01560-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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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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19
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Construction of a CQDs/Ag 3PO 4/BiPO 4 Heterostructure Photocatalyst with Enhanced Photocatalytic Degradation of Rhodamine B under Simulated Solar Irradiation. MICROMACHINES 2019; 10:mi10090557. [PMID: 31450790 PMCID: PMC6780486 DOI: 10.3390/mi10090557] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/13/2019] [Accepted: 08/21/2019] [Indexed: 12/12/2022]
Abstract
A carbon quantum dot (CQDs)/Ag3PO4/BiPO4 heterostructure photocatalyst was constructed by a simple hydrothermal synthesis method. The as-prepared CQDs/Ag3PO4/BiPO4 photocatalyst has been characterized in detail by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, ultraviolet–visible spectroscopy, and photoelectrochemical measurements. It is demonstrated that the CQDs/Ag3PO4/BiPO4 composite is constructed by assembling Ag3PO4 fine particles and CQDs on the surface of rice-like BiPO4 granules. The CQDs/Ag3PO4/BiPO4 heterostructure photocatalyst exhibits a higher photocatalytic activity for the degradation of the rhodamine B dye than that of Ag3PO4, BiPO4, and Ag3PO4/BiPO4. The synergistic effects of light absorption capacity, band edge position, separation, and utilization efficiency of photogenerated carriers play the key role for the enhanced photodegradation of the rhodamine B dye.
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