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Buckley S, Leresche F, Norris K, Rosario-Ortiz FL. Role of Direct and Sensitized Photolysis in the Photomineralization of Dissolved Organic Matter and Model Chromophores to Carbon Dioxide. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024. [PMID: 39047179 DOI: 10.1021/acs.est.4c01530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
This study addresses the fundamental processes that drive the photomineralization of dissolved organic matter (DOM) to carbon dioxide (CO2), deconvoluting the role of direct and sensitized photolysis. Here, a suite of DOM isolates and model compounds were exposed to simulated sunlight in the presence of various physical and chemical quenchers to assess the magnitude, rate, and extent of direct and sensitized photomineralization to CO2. Results suggest that CO2 formation occurs in a biphasic kinetic system, with fast production occurring within the first 3 h, followed by slower production thereafter. Notably, phenol model chromophores were the highest CO2 formers and, when conjugated with carboxylic functional groups, exhibited a high efficiency for CO2 formation relative to absorbed light. Simple polycarboxylated aromatic compounds included in this study were shown to be resistant to photomineralization. Quencher results suggest that direct photolysis and excited triplet state sensitization may be largely responsible for CO2 photoproduction in DOM, while singlet oxygen and hydroxyl radical sensitization may play a limited role. After 3 h of irradiation, the CO2 formation rate significantly decreased, and the role of sensitized reactions in CO2 formation increased. Together, the results from this study advance the understanding of the fundamental reactions driving DOM photomineralization to CO2, which is an important part of the global carbon cycle.
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Affiliation(s)
- Shelby Buckley
- Environmental Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Frank Leresche
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Environmental Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Kari Norris
- Environmental Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
| | - Fernando L Rosario-Ortiz
- Department of Civil, Environmental, and Architectural Engineering, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Environmental Engineering Program, University of Colorado Boulder, Boulder, Colorado 80309, United States
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2
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Rojas SD, Rafaela G, Espinoza-Villalobos N, Diaz-Droguett DE, Salazar-González R, Caceres-Jensen L, Escalona N, Barrientos L. Role of Nb 2O 5 Crystal Phases on the Photocatalytic Conversion of Lignin Model Molecules and Selectivity for Value-Added Products. CHEMSUSCHEM 2024; 17:e202301594. [PMID: 38452280 DOI: 10.1002/cssc.202301594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 02/02/2024] [Accepted: 03/07/2024] [Indexed: 03/09/2024]
Abstract
The photocatalytic conversion in aqueous media of phenol and guaiacol as a lignin model compound using Nb2O5 with different crystal phases was studied. Nb2O5 particles were synthesized using hydrothermal methods, where it was observed that changes in the solvent control their morphology and crystal phase. Different photocatalytic behavior of Nb2O5 was observed with the selected model compounds, indicating that its selection directly impacts the resulting conversion and selectivity rates as well as the reaction pathway, highlighting the relevance of model molecule selection. Photocatalytic conversion of phenol showed conversion rate (C%) up to 25 % after 2 h irradiation and high selectivity (S%) to pyrogallol (up to 50 %). Orthorhombic Nb2O5 spheres favored conversion through free hydroxyl radicals while monoclinic rods did not convert phenol. Guaiacol photocatalytic oxidation showed high conversion rate but lower selectivity. Orthorhombic and monoclinic Nb2O5 favored the formation of resorcinol with S % ~0.43 % (C % ~33 %) and ~13 % (C % ~27 %) respectively. The mixture of both phases enhanced the guaiacol conversion rate to ~55 % with ~17 % of selectivity to salicylaldehyde. The use of radical scavengers provided information to elucidate the reaction pathway for these model compounds, showing that different reaction pathways may be obtained for the same photocatalyst if the model compound is changed.
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Affiliation(s)
- Susana D Rojas
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
- Current Address: Escuela de Ingeniería Industrial, Facultad de Ingeniería, Universidad de Valparaíso, Avenida Brasil 1786, Valparaíso, Chile
- Gran Avenida 4160, San Miguel, Santiago, Chile
| | - Gabriela Rafaela
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Nicole Espinoza-Villalobos
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Donovan E Diaz-Droguett
- Instituto de Física, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Santiago, Chile
- Centro de investigación en Nanotecnología y Materiales CIEN-UC, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
- Centro de Energía UC, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Ricardo Salazar-González
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Lizethly Caceres-Jensen
- Laboratorio de Fisicoquímica & Analítica (PachemLab), Nucleus of Computational Thinking and Education for Sustainable Development (NuCES), Center for Research in Education (CIE-UMCE), Departamento de Química, Universidad Metropolitana de Ciencias de la Educación, Avenida José Pedro Alessandri 774, Ñuñoa, Santiago, 776019, Chile
| | - Néstor Escalona
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
- Centro de investigación en Nanotecnología y Materiales CIEN-UC, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
- Millennium Nuclei on Catalytic Processes Towards Sustainable Chemistry (CSC), Santiago, Chile
- Departamento de Ingeniería Química y Bioprocesos, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Lorena Barrientos
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
- Centro de investigación en Nanotecnología y Materiales CIEN-UC, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
- Millennium Nuclei on Catalytic Processes Towards Sustainable Chemistry (CSC), Santiago, Chile
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3
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Tan X, Tian Z, Liu Y, Xiao F, Zhang H. Facile fabrication of chitosan/bone/bamboo biochar beads for simultaneous removal of co-existing Cr(VI) and bisphenol a from water. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2024; 59:507-520. [PMID: 38978285 DOI: 10.1080/03601234.2024.2374164] [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: 03/21/2024] [Accepted: 06/25/2024] [Indexed: 07/10/2024]
Abstract
Heavy metal Cr(VI) and organic BPA have posed harmful risks to human health, aquatic organisms and the ecosystem. In this work, Chitosan/bone/bamboo biochar beads (CS-AMCM) were synthesized by co-pyrolysis and in situ precipitation method. These microbeads featured a particle size of approximately 1 ± 0.2 mm and were rich in oxygen/nitrogen functional groups. CS-AMCM was characterized using XRD, Zeta potential, FTIR, etc. Experiments showed that adsorption processes of CS-AMCM on Cr(VI) and BPA fitted well to Langmuir model, with theoretical maximum capacities of 343.61 mg/g and 140.30 mg/g, respectively. Pore filling, electrostatic attraction, redox, complexation and ion exchange were the main mechanisms for Cr(VI), whereas for BPA, the intermolecular force (hydrogen bond) and pore filling were involved. CS-AMCM with adsorbed Cr(VI) demonstrated effective activation in producing ·OH and ·O2 from H2O2, which degraded BPA and Cr(VI) with the removal rates of 99.2% and 98.2%, respectively. CS-AMCM offers the advantages of low-cost, large adsorption capacity, high catalytic degradation efficiency, and favorable recycling in treating Cr(VI) and BPA mixed wastewater, which shows great potential in treating heavy metal and organic matter mixed pollution wastewater.
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Affiliation(s)
- Xiaohong Tan
- School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan, China
- Institute of Materials, China Academy of Engineering Physics, Mianyang, China
| | - Zhitao Tian
- School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan, China
| | - Yanyan Liu
- School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan, China
| | - Fei Xiao
- School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan, China
| | - Hailing Zhang
- Institute of Materials, China Academy of Engineering Physics, Mianyang, China
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4
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Paz CV, Fereidooni M, Hamd W, Daher EA, Praserthdam P, Praserthdam S. Analysis of Ag-DP25/PET plasmonic nano-composites as a visible-light photocatalyst for wastewater treatment: Experimental/theoretical studies, and the DFT-MB degradation mechanism. ENVIRONMENTAL RESEARCH 2024; 252:119081. [PMID: 38714221 DOI: 10.1016/j.envres.2024.119081] [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: 02/06/2024] [Revised: 04/06/2024] [Accepted: 05/04/2024] [Indexed: 05/09/2024]
Abstract
The development of polymeric-composites Agx%DP25-PET (x = 0,1,2,3) may significantly boost the potential application of Agx%DP25 (x = 0,1,2,3) photocatalytic powders. Producing large-scale nano-composites with hybrid-surfaces, that are also flexible materials and easy to employ in a variety of environments. A set of photocatalytic nan-composites embedded with the polymeric binder poly (acrylonitrile-co-butadiene)-dicarboxy terminated (C7H9N) were performed and evaluated for wastewater treatment applications. The results reveal that the flexible polymeric composites (Agx%DP25-PET, x = 0,1,2,3) have photocatalytic activity in aqua media to degrade methylene blue (MB) under visible-light. The addition of C7H9N to immobilize photocatalytic powders on the PET surface reduces photo-generated electron-hole recombination. The materials were characterized by HR-TEM, SEM/EDX, XRD, FT-IR, UV-Vis DRS and PL. The Agx%DP25-PET (x = 0,1,2,3) photocatalytic reactions exhibited productive discoloration/degradation rates, in both aerobic (AE) and anaerobic (AN) environments. The superior photodegradation of Ag2%DP25-PET was attributed to a combination of two effects: LSPR (localized surface plasmon resonance) and Ag-TiO2/environment affinities. The findings of molecular dynamics (MD) simulation and Fukui Function (FF) based on density functional theory (DFT) provide significant insight into the photocatalytic requirements for MB discoloration/degradation. The experimental/theoretical analysis aimed to offer an in-depth understanding of medium/surface interactions on decorated TiO2 materials, as well as how these interactions affect overall degradation behavior.
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Affiliation(s)
- C V Paz
- Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10300, Thailand.
| | - M Fereidooni
- Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10300, Thailand.
| | - W Hamd
- Chemical Engineering Department, Faculty of Engineering, University of Balamand, P.O. Box 33, 1355, El-Koura, Lebanon.
| | - E A Daher
- Petrochemical Engineering Department, Faculty of Engineering III, CRSI, Lebanese University, Rafic Hariri Campus, 1533, Hadat, Lebanon; Laboratoire Chimie de la Matière Condensée de Paris LCMCP, Sorbonne Université, UPMC Paris 06, 4 Place Jussieu, 75005, Paris, France.
| | - P Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10300, Thailand.
| | - S Praserthdam
- Center of Excellence on Catalysis and Catalytic Reaction Engineering (CECC), Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10300, Thailand.
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5
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Manickavasagam G, He C, Lin KYA, Saaid M, Oh WD. Recent advances in catalyst design, performance, and challenges of metal-heteroatom-co-doped biochar as peroxymonosulfate activator for environmental remediation. ENVIRONMENTAL RESEARCH 2024; 252:118919. [PMID: 38631468 DOI: 10.1016/j.envres.2024.118919] [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: 02/23/2024] [Revised: 04/02/2024] [Accepted: 04/10/2024] [Indexed: 04/19/2024]
Abstract
The escalation of global water pollution due to emerging pollutants has gained significant attention. To address this issue, catalytic peroxymonosulfate (PMS) activation technology has emerged as a promising treatment approach for effectively decontaminating a wide range of pollutants. Recently, modified biochar has become an increasingly attractive as PMS activator. Metal-heteroatom-co-doped biochar (MH-BC) has emerged as a promising catalyst that can provide enhanced performance over heteroatom-doped and metal-doped biochar due to the synergism between metal and heteroatom in promoting PMS activation. Therefore, this review aims to discuss the fabrication pathways (i.e., internal vs external doping and pre-vs post-modification) and key parameters (i.e., source of precursors, synthesis methods, and synthesis conditions) affecting the performance of MH-BC as PMS activator. Subsequently, an overview of all the possible PMS activation pathways by MH-BC is provided. Subsequently, Also, the detection, identification, and quantification of several reactive species (such as, •OH, SO4•-, O2•-, 1O2, and high valent oxo species) generated in the catalytic PMS system by MH-BC are also evaluated. Lastly, the underlying challenges associated with poor stability, the lack of understanding regarding the interaction between metal and heteroatom during PMS activation and quantification of radicals in multi-ROS system are also deliberated.
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Affiliation(s)
| | - Chao He
- Faculty of Engineering and Natural Sciences, Tampere University, Tampere, Finland
| | - Kun-Yi Andrew Lin
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250, Kuo-Kuang Road, Taichung, Taiwan; Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Mardiana Saaid
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Wen-Da Oh
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia.
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6
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Fedorov K, Kong L, Wang C, Boczkaj G. High-performance activation of ozone by sonocavitation for BTEX degradation in water. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 363:121343. [PMID: 38843727 DOI: 10.1016/j.jenvman.2024.121343] [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: 02/27/2024] [Revised: 05/10/2024] [Accepted: 05/30/2024] [Indexed: 06/18/2024]
Abstract
This work presents a novel advanced oxidation process (AOP) for degradation of emerging organic pollutants - benzene, toluene, ethylbenzene and xylenes (BTEXs) in water. A comparative study was performed for sonocavitation assisted ozonation under 40-120 kHz and 80-200 kHz dual frequency ultrasounds (DFUS). Based on the obtained results, the combination of 40-120 kHz i.e., low-frequency US (LFDUS) with O3 exhibited excellent oxidation capacity degrading 99.37-99.69% of BTEXs in 40 min, while 86.09-91.76% of BTEX degradation was achieved after 60 min in 80-200 kHz i.e., high-frequency US (HFDUS) combined with O3. The synergistic indexes determined using degradation rate constants were found as 7.86 and 2.9 for LFDUS/O3 and HFDUS/O3 processes, respectively. The higher extend of BTEX degradation in both processes was observed at pH 6.5 and 10. Among the reactive oxygen species (ROSs), hydroxyl radicals (HO•) were found predominant according to scavenging tests, singlet oxygen also importantly contributed in degradation, while O2•- radicals had a minor contribution. Sulfate (SO42-) ions demonstrated higher inhibitory effect compared to chloride (Cl-) and carbonate (CO32-) ions in both processes. Degradation pathways of BTEX was proposed based on the intermediates identified using GC-MS technique.
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Affiliation(s)
- Kirill Fedorov
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, Gdansk, Poland
| | - Lingshuai Kong
- Institute of Eco-Environmental Forensics, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Chongqing Wang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450001, China
| | - Grzegorz Boczkaj
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, Gdansk, Poland; Gdansk University of Technology, EcoTech Center, 11/12 Narutowicza St., 80-233, Gdansk, Poland.
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7
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Kim CM, Chowdhury MF, Im HR, Cho K, Jang A. NiAlFe LTH /MoS 2 p-n junction heterostructure composite as an effective visible-light-driven photocatalyst for enhanced degradation of organic dye under high alkaline conditions. CHEMOSPHERE 2024; 358:142094. [PMID: 38648984 DOI: 10.1016/j.chemosphere.2024.142094] [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: 01/27/2024] [Revised: 04/08/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
Designing of an effectual heterostructure photocatalyst for catalytic organic pollutant exclusion has been the subject of rigorous research intended to resolve the related environmental aggravation. Fabricating p-n junctions is an effective strategy to promote electron-hole separation of semiconductor photocatalysts as well as enhance the organic toxin degradation performance. In this study, a series of n-type NiAlFe-layered triple hydroxide (LTH) loaded with various ratios of p-type MoS2 was synthesized for forming a heterostructure LTH/MoS2 (LMs) by an in situ hydrothermal strategy. The photocatalysts were characterized by XRD, SEM&EDX, TEM, FT-IR, XPS, as well as UV-vis DRS. The photoactivity of photocatalysts was tested by the degradation of Indigo Carmine (IC) dye. The optimized catalyst (LM1) degrades 100% of indigo dye in high alkaline pH under UV light for 100 min. Besides, the degradation rate of LM1 is 15 times higher than that of pristine NiAlFe-LTH. The enhanced photoactivity is attributed to the synergistic effect between NiAlFe-LTH and MoS2 as well as the p-n junction formation.
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Affiliation(s)
- Chang-Min Kim
- Future and Fusion Lab of Architectural, Civil and Environmental Engineering, Korea University, Seoul 02841, Republic of Korea; Department of Global Smart City, Sungkyunkwan University (SKKU), 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Mir Ferdous Chowdhury
- Department of Global Smart City, Sungkyunkwan University (SKKU), 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Hong Rae Im
- Department of Global Smart City, Sungkyunkwan University (SKKU), 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea
| | - Kyunghwa Cho
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea.
| | - Am Jang
- Department of Global Smart City, Sungkyunkwan University (SKKU), 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do, 16419, Republic of Korea.
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8
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Cosentino F, Michenzi C, Di Noi A, Salvitti C, Pepi F, de Petris G, Chiarotto I, Troiani A. Photo-activated Carbon dots (CDs) as Catalysts in the Knoevenagel Condensation: A Mechanistic Study by Dual-Mode Monitoring via ESI-MS. Chempluschem 2024:e202400174. [PMID: 38771069 DOI: 10.1002/cplu.202400174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/20/2024] [Accepted: 05/21/2024] [Indexed: 05/22/2024]
Abstract
Carbon dots (CDs) obtained from 5-(hydroxymethyl)furfural (5-HMF) were activated by a 365 nm-UV irradiation source and employed in the Knoevenagel condensation to investigate their photocatalytic mechanism. To this end, electrospray ionization mass spectrometry (ESI-MS) was used to monitor the time progress of the condensation and follow the formation of the final product in positive and negative ion modes at once. The intervention of the superoxide radical anion in the photocatalytic mechanism of CDs was highlighted.
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Affiliation(s)
- Francesca Cosentino
- Department of Chemistry and Technology of Drugs, "Sapienza" University of Rome P.le Aldo, Moro 5, 00185, Roma, Italy
| | - Cinzia Michenzi
- Department of Basic and Applied Sciences for Engineering, "Sapienza" University of Rome, Via Castro Laurenziano 7, 00161, Roma, Italy
| | - Alessia Di Noi
- Department of Chemistry and Technology of Drugs, "Sapienza" University of Rome P.le Aldo, Moro 5, 00185, Roma, Italy
| | - Chiara Salvitti
- Department of Chemistry and Technology of Drugs, "Sapienza" University of Rome P.le Aldo, Moro 5, 00185, Roma, Italy
| | - Federico Pepi
- Department of Chemistry and Technology of Drugs, "Sapienza" University of Rome P.le Aldo, Moro 5, 00185, Roma, Italy
| | - Giulia de Petris
- Department of Chemistry and Technology of Drugs, "Sapienza" University of Rome P.le Aldo, Moro 5, 00185, Roma, Italy
| | - Isabella Chiarotto
- Department of Basic and Applied Sciences for Engineering, "Sapienza" University of Rome, Via Castro Laurenziano 7, 00161, Roma, Italy
| | - Anna Troiani
- Department of Chemistry and Technology of Drugs, "Sapienza" University of Rome P.le Aldo, Moro 5, 00185, Roma, Italy
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Morante N, Folliero V, Dell’Annunziata F, Capuano N, Mancuso A, Monzillo K, Galdiero M, Sannino D, Franci G. Characterization and Photocatalytic and Antibacterial Properties of Ag- and TiO x-Based (x = 2, 3) Composite Nanomaterials under UV Irradiation. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2178. [PMID: 38793245 PMCID: PMC11122886 DOI: 10.3390/ma17102178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/15/2024] [Accepted: 04/27/2024] [Indexed: 05/26/2024]
Abstract
Metal and metal oxide nanostructured materials have been chemically and physically characterized and tested concerning methylene blue (MB) photoremoval and UV antibacterial activity against Escherichia coli and Staphylococcus aureus. In detail, silver nanoparticles and commercial BaTiO3 nanoparticles were modified to obtain nanocomposites through sonicated sol-gel TiO2 synthesis and the photodeposition of Ag nanoparticles, respectively. The characterization results of pristine nanomaterials and synthetized photocatalysts revealed significant differences in specific surface area (SSA), the presence of impurities in commercial Ag nanoparticles, an anatase phase with brookite traces for TiO2-based nanomaterials, and a mixed cubic-tetragonal phase for BaTiO3. Silver nanoparticles exhibited superior antibacterial activity at different dosages; however, they were inactive in the photoremoval of the dye. The silver-TiOx nanocomposite demonstrated an activity in the UV photodegradation of MB and UV inhibition of bacterial growth. Specifically, TiO2/AgNP (30-50 nm) reduced growth by 487.5 and 1.1 × 103 times for Escherichia coli and Staphylococcus aureus, respectively, at a dose of 500 μg/mL under UV irradiation.
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Affiliation(s)
- Nicola Morante
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy; (N.M.); (A.M.); (K.M.)
| | - Veronica Folliero
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84084 Baronissi, SA, Italy; (V.F.); (F.D.); (N.C.)
| | - Federica Dell’Annunziata
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84084 Baronissi, SA, Italy; (V.F.); (F.D.); (N.C.)
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “Luigi Vanvitelli”, 80138 Naples, NA, Italy;
| | - Nicoletta Capuano
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84084 Baronissi, SA, Italy; (V.F.); (F.D.); (N.C.)
| | - Antonietta Mancuso
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy; (N.M.); (A.M.); (K.M.)
| | - Katia Monzillo
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy; (N.M.); (A.M.); (K.M.)
| | - Massimiliano Galdiero
- Department of Experimental Medicine, Section of Microbiology and Clinical Microbiology, University of Campania “Luigi Vanvitelli”, 80138 Naples, NA, Italy;
| | - Diana Sannino
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy; (N.M.); (A.M.); (K.M.)
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84084 Baronissi, SA, Italy; (V.F.); (F.D.); (N.C.)
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10
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Seipp K, Grölz V, Glass H, Quraishi E, Vierengel N, Opatz T. Total Synthesis of (±)-Oxacyclododecindione. J Org Chem 2024; 89:5746-5763. [PMID: 38597924 DOI: 10.1021/acs.joc.4c00333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Racemic total synthesis of the natural product oxacyclododecindione, isolated in 2008 as the first member of the oxacyclododecindione family, is reported. Studies toward this molecule commenced with a biomimetic late-stage C-H oxidation starting from 14-deoxyoxacyclododecindione as a known precursor. This provided insights into the reactivity of the macrolactone class but did not permit the synthesis of the target natural product. Based on these results, a synthetic strategy through intramolecular Friedel-Crafts acylation combined with Barton decarboxylation to introduce the tertiary alcohol, a major challenge in previous synthetic efforts, was envisioned. This resulted in an 11-step racemic total synthesis of (±)-oxacyclododecindione, renowned for its potent anti-inflammatory and antifibrotic activities.
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Affiliation(s)
- Kevin Seipp
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Vincent Grölz
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Hagen Glass
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Elisabeth Quraishi
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Nina Vierengel
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Till Opatz
- Department of Chemistry, Johannes Gutenberg-University, Duesbergweg 10-14, 55128 Mainz, Germany
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11
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Wang Y, Wang S, Liu Y, Wang J. Peroxymonosulfate activation by nanocomposites towards the removal of sulfamethoxazole: Performance and mechanism. CHEMOSPHERE 2024; 353:141586. [PMID: 38452980 DOI: 10.1016/j.chemosphere.2024.141586] [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: 12/31/2023] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/09/2024]
Abstract
Heterogeneous activation of peroxomonosulfate (PMS) has been extensively studied for the degradation of antibiotics. The cobalt ferrite spinel exhibits good activity in the PMS activation, but suffers from the disadvantage of low PMS utilization efficiency. Herein, the nanocomposites including FeS, CoS2, CoFe2O4 and Fe2O3 were synthesized by hydrothermal method and used for the first time to activate PMS for the removal of sulfamethoxazole (SMX). The nanocomposites showed superior catalytic activity in which the SMX could be completely removed at 40 min, 0.1 g L-1 nanocomposites and 0.4 mM PMS with the first order kinetic constant of 0.2739 min-1. The PMS utilization efficiency was increased by 29.4% compared to CoFe2O4. Both radicals and non-radicals contributed to the SMX degradation in which high-valent metal oxo dominated. The mechanism analysis indicated that sulfur modification, on one hand, enhanced the adsorption of nanocomposites for PMS, and promoted the redox cycles of Fe2+/Fe3+ and Co2+/Co3+ on the other hand. This study provides new way to enhance the catalytic activity and PMS utilization efficiency of spinel cobalt ferrite.
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Affiliation(s)
- Yuexinxi Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, PR China; Collaborative Innovation Center for Advanced Nuclear Energy Technology (INET) Tsinghua University, Beijing 100084, PR China
| | - Shizong Wang
- Collaborative Innovation Center for Advanced Nuclear Energy Technology (INET) Tsinghua University, Beijing 100084, PR China.
| | - Yong Liu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, PR China
| | - Jianlong Wang
- Collaborative Innovation Center for Advanced Nuclear Energy Technology (INET) Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory for Radioactive Waste Treatment, Tsinghua University, Beijing 100084, PR China
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12
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Wang W, Cao G, Zhang J, Qiao H, Li H, Yang B, Chen Y, Zhu L, Sang Y, Du L, Cai Z. UV-induced photodegradation of emerging para-phenylenediamine quinones in aqueous environment: Kinetics, products identification and toxicity assessments. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133427. [PMID: 38185090 DOI: 10.1016/j.jhazmat.2024.133427] [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: 09/11/2023] [Revised: 12/11/2023] [Accepted: 01/01/2024] [Indexed: 01/09/2024]
Abstract
Substituted para-phenylenediamine quinones (PPD-quinones) are a class of emerging contaminants frequently detected in the aqueous environment. One of them, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPD-Q), was found to cause acute toxicities to aquatic species at extremely low environmental levels. The ubiquitousness and ecotoxicity of such pollutants underscore the importance of their transformation and elimination. In this work, we demonstrated effective removals of five PPD-quinones in aqueous environments under UV irradiation, with up to 94% of 6PPD-Q eliminated after a 40-min treatment. By applying high-resolution mass spectrometry (HRMS) non-targeted screening in combination with isotope labeling strategies, a total of 22 transformation products (TPs) were identified. Coupling with the time-based dynamic patterns, potential transformation mechanisms were identified as an •OH-induced photocatalysis reaction involving bond cleavage, hydroxylation, and oxidation. Computational toxicity assessment predicted lower aquatic toxicity of the TPs than their parent PPD-quinones. Our results in parallel evidenced an obvious reduction of PPD-quinones accompanied by the presence of their TPs in the effluent after UV disinfection in real municipal wastewater. This work builds a comprehensive understanding of the fate, transformation products, and related toxicological characteristics of emerging PPD-quinone contaminants in the aqueous environment.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Guodong Cao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Jing Zhang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Han Qiao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Huankai Li
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Biwei Yang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Yanyan Chen
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Lin Zhu
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Yuecheng Sang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China
| | - Lei Du
- Huangpu Hydrogen Energy Innovation Center/School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, 999077, Hong Kong Special Administrative Region of China.
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13
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Trzeciak M, Miądlicki P, Tryba B. Enhanced Degradation of Ethylene in Thermo-Photocatalytic Process Using TiO 2/Nickel Foam. MATERIALS (BASEL, SWITZERLAND) 2024; 17:267. [PMID: 38204119 PMCID: PMC10780184 DOI: 10.3390/ma17010267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 01/12/2024]
Abstract
The photocatalytic decomposition of ethylene was performed under UV-LED irradiation in the presence of nanocrystalline TiO2 (anatase, 15 nm) supported on porous nickel foam. The process was conducted in a high-temperature chamber with regulated temperature from ambient to 125 °C, under a flow of reacted gas (ethylene in synthetic air, 50 ppm, flow rate of 20 mL/min), with simultaneous FTIR measurements of the sample surface. Ethylene was decomposed with a higher efficiency at elevated temperatures, with a maximum of 28% at 100-125 °C. The nickel foam used as support for TiO2 enhanced ethylene decomposition at a temperature of 50 °C. However, at 50 °C, the stability of ethylene decomposition was not maintained in the following reaction run, but it was at 100 °C. Photocatalytic measurements conducted in the presence of certain radical scavengers indicated that a higher efficiency of ethylene decomposition was obtained due to the improved separation of charge carriers and the increased formation of superoxide anionic radicals, which were formed at the interface of the thermally activated nickel foam and TiO2.
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Affiliation(s)
| | | | - Beata Tryba
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland; (M.T.); (P.M.)
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14
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Li WZ, Mahasti NNN, Chang KY, Huang YH. Application of Fe 0.66Cu 0.33@Al(OH) 3 catalyst from fluidized-bed crystallizer by-product for RB5 azo dye treatment using visible light-assisted photo-Fenton technology. CHEMOSPHERE 2023; 343:140268. [PMID: 37758073 DOI: 10.1016/j.chemosphere.2023.140268] [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: 06/27/2023] [Revised: 09/08/2023] [Accepted: 09/23/2023] [Indexed: 10/03/2023]
Abstract
This study aims to explore the reusability of wastewater treatment by-product for photo-Fenton process to treat an organic pollutant model. The optimal condition, reactive oxygen species (ROS), and kinetic approach in photo-Fenton process was discussed. The Metal oxide crystal pellets from are a by-product of the Fluidized-Bed Crystallization (FBC) process and can be used as a catalyst in the Photo-Fenton process. Electroplating wastewater containing iron and copper was treated via the FBC process using granulated Al(OH)3 as carrier seeds. The binary oxide of FeOOH and Cu2O on the Al(OH)3 surface (Fe0.66Cu0.33@Al(OH)3) was identified as the FBC by-product after characterization using FTIR and XPS analysis. In the photo-Fenton process, visible light from a fluorescence lamp with a wavelength of 400-610 nm was chosen as an irradiation source. Oxalic acid was added as chelating agent to form photosensitive iron oxalate species and hydrogen peroxide was applied as oxidant to generate active radical to decolorize and mineralize RB5 synthesized solution (100 mg/L). The operating conditions including the oxalic acid to pollutant ratio ([OA]0/[RB5]0) of 4.5-13.0, reaction pH (pHr) of 3-7 and initial to theoretical hydrogen peroxide molar ratio [H2O2]0/[ H2O2]theoretical of 35%-120% were optimized. Under the optimal conditions, pHr = 5.0; [H2O2]0/[RB5]0 at 75% stoichiometric and [OA]0/[RB5]0 = 9, the RB5 is almost completely decolorized after 210 min of operation and the mineralization efficiency is 58%. The contribution of •OH, O2•-, and O21 to the Photo-Fenton system was determined using ESR analysis with the addition of DMPO and TEMP as spin trap agents. The kinetic analysis reveals the observed rate constants kRB5, kOA and kR from fitting are 0.0120, 0.0054 and 0.0001 M-1s-1, respectively.
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Affiliation(s)
- Wei-Zheng Li
- Chemical Engineering Department, National Cheng Kung University, Taiwan
| | | | - Kai-Yang Chang
- Chemical Engineering Department, National Cheng Kung University, Taiwan
| | - Yao-Hui Huang
- Chemical Engineering Department, National Cheng Kung University, Taiwan.
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15
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Larralde-Piña IA, Acuña-Askar K, Villanueva-Rodríguez M, Guzmán-Mar JL, Murillo-Sierra JC, Ruiz-Ruiz EJ. An optimized electro-fenton pretreatment for the degradation and mineralization of a mixture of ofloxacin, norfloxacin, and ciprofloxacin. CHEMOSPHERE 2023; 344:140339. [PMID: 37820878 DOI: 10.1016/j.chemosphere.2023.140339] [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: 06/22/2023] [Revised: 09/18/2023] [Accepted: 09/28/2023] [Indexed: 10/13/2023]
Abstract
The electro-Fenton process (EFP) is a powerful advanced oxidation process beneficial to treating recalcitrant contaminants, and there has been a continuing interest in combining this technology to enhance the efficiency of conventional wastewater treatment processes. In this work, an optimized EFP process is performed as pretreatment for the degradation and mineralization of three blank fluoroquinolones (FQs) drugs: ofloxacin (OFL), norfloxacin (NOR), and ciprofloxacin (CIP). The optimization of the experiment was carried out using a Box-Behnken experimental design. Faster and complete degradation of the drugs mixture was achieved in 90 min with 61.12 ± 2.0% of mineralization in 180 min, under the optimized conditions: j = 244.0 mA cm-2, [Fe2+] = 0.31 mM, and [FQs] = 87.0 mg L-1. Furthermore, a low toxicity effluent was obtained in 90 min of the experiment, according to bioassay toxicity with Vibrio fischeri. Five short-chain carboxylic acids, including oxalic, maleic, oxamic, formic, and fumaric acids, were detected and quantified, in addition to F- and NO3- inorganic ions. The inhibition of the reactive oxygen species with scavenger proof was also evaluated in this paper.
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Affiliation(s)
- I A Larralde-Piña
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Cd. Universitaria, San Nicolás de Los Garza, Nuevo León, C.P. 66455, México
| | - K Acuña-Askar
- Universidad Autónoma de Nuevo León (UANL), Facultad de Medicina, Depto. de Microbiología, Monterrey, Nuevo León, C.P. 64460, México
| | - M Villanueva-Rodríguez
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Cd. Universitaria, San Nicolás de Los Garza, Nuevo León, C.P. 66455, México
| | - J L Guzmán-Mar
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Cd. Universitaria, San Nicolás de Los Garza, Nuevo León, C.P. 66455, México
| | - J C Murillo-Sierra
- Universidad de Concepción, Facultad de Ciencias Químicas, Edmundo Larenas 129, Concepción, Chile
| | - E J Ruiz-Ruiz
- Universidad Autónoma de Nuevo León (UANL), Facultad de Ciencias Químicas, Cd. Universitaria, San Nicolás de Los Garza, Nuevo León, C.P. 66455, México.
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16
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Keshu, Rani M, Shanker U. One pot green synthesis of Al doped zinc ferrite nanoparticle decorated with reduced graphene oxide for photocatalytic remediation of organic pollutants: Green synthesis, kinetics, and photoactivity. CHEMOSPHERE 2023; 344:140381. [PMID: 37806330 DOI: 10.1016/j.chemosphere.2023.140381] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/04/2023] [Accepted: 10/05/2023] [Indexed: 10/10/2023]
Abstract
The world is drawn to the widespread use, toxicity, and bioaccumulation of the Atrazine (AT) and Auramine O (AO). Pesticides and dyes also have endocrine disruptors, genotoxic and persistent properties. Therefore, the photodegradation of AT and AO in water was investigated. Herein, the structural design of Al-ZnFe2O4 incorporated in rGO nanocomposite has been synthesized via facile precipitation and green synthesis methodology. PXRD and microscopic analysis confirmed the reduced crystallinity nature of Al-ZnFe2O4 due to the incorporation of amorphous rGO. The green Al-ZnFe2O4@rGO nanocomposite (AT: 90%; AO: 95%) showed maximum degradation as compared to native nanoparticles with minimum pollutants concentration of 10 mg catalytic dose at neutral pH in sunlight irradiation due to negative zeta potential (-36.0 mV), higher surface area (163 m2g-1) and tailored band gap (2.1 eV). First-order kinetics followed by initial Langmuir adsorption constituted the degradation process. The presence of different radical quenchers (t-BuOH, p-BZQ, Na2EDTA) concluded that hydroxyl radical plays a significant role in the degradation of toxic AT and AO. Green fabricated Al-ZnFe2O4@rGO also showed excellent efficiency for the degradation of AT and AO pollutant in real wastewater sample. Nanocomposite demonstrated remarkable sustainability and cost-effectiveness by remaining effective for up to nine cycles without experiencing any appreciable activity reduction. Due to its favorable surface features, Al-ZnFe2O4@rGO nanocomposite made via green process is a unique and potential photocatalyst for industrial applications.
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Affiliation(s)
- Keshu
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Rajasthan, 302017, India; Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, Punjab, 144011, India
| | - Manviri Rani
- Department of Chemistry, Malaviya National Institute of Technology Jaipur, Rajasthan, 302017, India.
| | - Uma Shanker
- Department of Chemistry, Dr B R Ambedkar National Institute of Technology, Jalandhar, Punjab, 144011, India.
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17
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Kader DA. Green approach for the fabrication of a ternary nanocatalyst (Ag-ZnONPs@Cy) for visible light-induced photocatalytic reduction of nitroarenes to aminoarenes. RSC Adv 2023; 13:34904-34915. [PMID: 38035233 PMCID: PMC10687522 DOI: 10.1039/d3ra06448d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 11/24/2023] [Indexed: 12/02/2023] Open
Abstract
In recent times, the incorporation of metal oxide nanoparticles with organic dyes has piqued the interest of numerous researchers due to their diverse applications under visible light instead of UV radiation. This investigation employed a three-step methodology to fabricate cyanidin-sensitized silver-doped zinc oxide nanoparticles (Ag-ZnO@Cy). Initially, cyanidin dye was extracted from fresh black mulberry fruit, followed by the eco-friendly synthesis of Ag-ZnO nanoparticles (Ag-ZnONPs). The successful integration of the prepared cyanidin dye with Ag-ZnONPs was achieved through a straightforward, environmentally benign, and cost-efficient procedure. The resultant ternary composite underwent comprehensive characterization and confirmation utilizing various techniques, such as SEM, FT-IR, EDX, DRS, elemental mapping, and XRD. The experimental results for Ag-ZnONPs@Cy demonstrated that the nanocrystalline wurtzite exhibited spherical shapes with an average crystal size of 27.42 nm. Moreover, the photocatalytic activity of the synthesized Ag-ZnONPs@Cy was meticulously investigated under blue LED light irradiation. This inquiry encompassed examinations of catalyst amount, regeneration, stability, reusability, and the influence of light source on the hydrogenation of nitroarenes to the corresponding aminoarenes. The findings shed light on the potential of this composite for diverse photocatalytic applications.
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Affiliation(s)
- Dana A Kader
- Department of Chemistry, College of Education, University of Sulaimani Old Campus, Kurdistan Region 46001 Iraq
- Pharmacy Department, Komar University of Science and Technology Kurdistan Region Sulaimani 46001 Iraq
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18
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Marcelo G, Rodríguez-Pascual P, Batanero B, Mendicuti F, Pecharromán C. Sepiolite promotes photodegradation of pyrene under visible light. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115573. [PMID: 37856983 DOI: 10.1016/j.ecoenv.2023.115573] [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: 05/26/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/21/2023]
Abstract
Mechanochemistry and photocatalysis are emergent technologies for the remediation of polycyclic aromatic hydrocarbons (PAHs) in soils. In this work, mechanochemistry and photocatalysis are combined for pyrene degradation. The photodegradation of pyrene, when in contact with sepiolite under pressure application, is studied. The mechanical treatment leads to a pyrene crystal phase transformation. In this new phase, pyrene undergoes a fast photodegradation in the 320-420 nm range. We show that sepiolite is superior as a photocatalyst in pyrene degradation to TiO2, the most exploited photocatalyst. A broad physicochemical characterization is carried out to propose a mechanism in which the photoexcitation of mechanically altered pyrene leads to an electron transfer to sepiolite matrix, which triggers the PAH degradation. Finally, we want to highlight that the pyrene/sepiolite combination is a simplified system to shed light on how PAH photodegradation may occur in soils.
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Affiliation(s)
- Gema Marcelo
- Universidad de Alcalá, Departamento de Química Analítica, Química Física e Ingeniería Química, Instituto de Investigación Química Andrés M. del Rio, Ctra. Madrid-Barcelona Km 33,600, Alcalá de Henares (Madrid) E-28805, Spain.
| | - Pedro Rodríguez-Pascual
- Instituto de Ciencia de los Materiales de Madrid (ICMM, CSIC), C/Sor Juana Inés de la Cruz 3, Madrid 28049, Spain
| | - Belen Batanero
- Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química Andrés M. del Rio, Ctra. Madrid-Barcelona Km 33,600, Alcalá de Henares (Madrid) E-28805, Spain
| | - Francisco Mendicuti
- Universidad de Alcalá, Departamento de Química Analítica, Química Física e Ingeniería Química, Instituto de Investigación Química Andrés M. del Rio, Ctra. Madrid-Barcelona Km 33,600, Alcalá de Henares (Madrid) E-28805, Spain
| | - Carlos Pecharromán
- Instituto de Ciencia de los Materiales de Madrid (ICMM, CSIC), C/Sor Juana Inés de la Cruz 3, Madrid 28049, Spain.
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19
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Debruyne M, Borgmans S, Radhakrishnan S, Breynaert E, Vrielinck H, Leus K, Laemont A, De Vos J, Rawat KS, Vanlommel S, Rijckaert H, Salemi H, Everaert J, Vanden Bussche F, Poelman D, Morent R, De Geyter N, Van Der Voort P, Van Speybroeck V, Stevens CV. Engineering of Phenylpyridine- and Bipyridine-Based Covalent Organic Frameworks for Photocatalytic Tandem Aerobic Oxidation/Povarov Cyclization. ACS APPLIED MATERIALS & INTERFACES 2023; 15:35092-35106. [PMID: 37462114 DOI: 10.1021/acsami.3c07036] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Covalent organic frameworks (COFs) are emerging as a new class of photoactive organic semiconductors, which possess crystalline ordered structures and high surface areas. COFs can be tailor-made toward specific (photocatalytic) applications, and the size and position of their band gaps can be tuned by the choice of building blocks and linkages. However, many types of building blocks are still unexplored as photocatalytic moieties and the scope of reactions photocatalyzed by COFs remains quite limited. In this work, we report the synthesis and application of two bipyridine- or phenylpyridine-based COFs: TpBpyCOF and TpPpyCOF. Due to their good photocatalytic properties, both materials were applied as metal-free photocatalysts for the tandem aerobic oxidation/Povarov cyclization and α-oxidation of N-aryl glycine derivatives, with the bipyridine-based TpBpyCOF exhibiting the highest activity. By expanding the range of reactions that can be photocatalyzed by COFs, this work paves the way toward the more widespread application of COFs as metal-free heterogeneous photocatalysts as a convenient alternative for commonly used homogeneous (metal-based) photocatalysts.
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Affiliation(s)
- Maarten Debruyne
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Ghent 9000, Belgium
| | - Sander Borgmans
- Department of Applied Physics, Ghent University, Technologiepark 46, Zwijnaarde 9052, Belgium
| | - Sambhu Radhakrishnan
- NMR/X-ray Platform for Convergence Research (NMRCoRe) & Centre for Surface Chemistry and Catalysis: Characterisation and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200f─Box 2461, Leuven 3001, Belgium
| | - Eric Breynaert
- NMR/X-ray Platform for Convergence Research (NMRCoRe) & Centre for Surface Chemistry and Catalysis: Characterisation and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200f─Box 2461, Leuven 3001, Belgium
| | - Henk Vrielinck
- Department of Solid State Sciences, Ghent University, Krijgslaan 281 (S1), Ghent 9000, Belgium
| | - Karen Leus
- Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 (B4), Ghent 9000, Belgium
| | - Andreas Laemont
- Department of Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium
| | - Juul De Vos
- Department of Applied Physics, Ghent University, Technologiepark 46, Zwijnaarde 9052, Belgium
| | - Kuber Singh Rawat
- Department of Applied Physics, Ghent University, Technologiepark 46, Zwijnaarde 9052, Belgium
| | - Siebe Vanlommel
- Department of Applied Physics, Ghent University, Technologiepark 46, Zwijnaarde 9052, Belgium
| | - Hannes Rijckaert
- Department of Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium
| | - Hadi Salemi
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Ghent 9000, Belgium
| | - Jonas Everaert
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Ghent 9000, Belgium
| | - Flore Vanden Bussche
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Ghent 9000, Belgium
- Department of Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium
| | - Dirk Poelman
- Department of Solid State Sciences, Ghent University, Krijgslaan 281 (S1), Ghent 9000, Belgium
| | - Rino Morent
- Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 (B4), Ghent 9000, Belgium
| | - Nathalie De Geyter
- Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 (B4), Ghent 9000, Belgium
| | - Pascal Van Der Voort
- Department of Chemistry, Ghent University, Krijgslaan 281 (S3), Ghent 9000, Belgium
| | | | - Christian V Stevens
- Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, Ghent 9000, Belgium
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20
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Coromelci CG, Turcu E, Doroftei F, Palamaru MN, Ignat M. Conjugated Polymer Modifying TiO 2 Performance for Visible-Light Photodegradation of Organics. Polymers (Basel) 2023; 15:2805. [PMID: 37447451 DOI: 10.3390/polym15132805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/18/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
Up to now, the use of TiO2 has been considered a promising advanced technology for organic pollutants removal from air or water, since it has high biological and chemical stability, high photoactivity, low toxicity, and low-cost production. However, there are issues to be addressed in enhancing TiO2 performance, and one of the current key issues is redesigning UV-active photocatalysts and making them active in the visible region of the electromagnetic spectrum. This way, solar light absorption will be insured, and thus, a more efficient photocatalyst could be obtained. For this reason, conjugated polymers and their derivatives are considered to act as photosensitizers, being able to shift the TiO2 activity from the UV to the visible region. Therefore, this study focuses on the synthesis of TiO2/conjugated polymer systems, which was accomplished by the deposition of poly-3,4-ethylene-dioxy-thiophene (PEDOT [-C6H4O2S-]n), a low-band semiconductor with an excellent stability due to its extending π-conjugated electron system, on titania nanoarchitecture. First of all, a TiO2 nanoarchitecture was synthesized by an ultrasound-assisted sol-gel method. Then, TiO2/PEDOT systems were obtained and characterized by using different techniques such as X-ray diffraction, Fourier Transform Infrared Spectroscopy, Scanning Electron Microscopy, UV-Vis diffuse reflectance, and N2 sorption measurements. The synthesized composites confirmed their mesoporosity and lower band gap values compared to bare titania, which clearly shows the ability to work as photocatalysts under visible-light activity. Further, we demonstrated that an organic pollutant, Congo Red dye, used as a model molecule could be photodegraded with the synthesized TiO2/PEDOT systems, with efficiencies of up to 95% in the case of TconvPEDOT under UV light and up to 99% for TconvPEDOT under visible-light irradiation, accomplishing in this way a successful synthesis of visible-light-activated titania photocatalyst.
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Affiliation(s)
- Cristina Giorgiana Coromelci
- Faculty of Chemistry, "Alexandru Ioan Cuza" University of Iaşi, 11 Carol I Blvd, 700506 Iaşi, Romania
- Institute of Interdisciplinary Research, Department of Exact Sciences and Natural Sciences, "Alexandru Ioan Cuza" University, 11 Carol I Blvd, 700506 Iasi, Romania
| | - Elvira Turcu
- Department of Inorganic Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore GhicaVoda Alley, 700487 Iasi, Romania
| | - Florica Doroftei
- Department of Inorganic Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore GhicaVoda Alley, 700487 Iasi, Romania
| | - Mircea Nicolae Palamaru
- Faculty of Chemistry, "Alexandru Ioan Cuza" University of Iaşi, 11 Carol I Blvd, 700506 Iaşi, Romania
| | - Maria Ignat
- Faculty of Chemistry, "Alexandru Ioan Cuza" University of Iaşi, 11 Carol I Blvd, 700506 Iaşi, Romania
- Department of Inorganic Polymers, "Petru Poni" Institute of Macromolecular Chemistry, 41A Grigore GhicaVoda Alley, 700487 Iasi, Romania
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21
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Wang A, Qiao Y, Zhang Y, Jin R, Liu J, He Z, Jia M, Gao J, Guo C. Performance and Mechanism of Chlorine Dioxide on BTEX Removal in Liquid and Indoor Air. Molecules 2023; 28:molecules28114342. [PMID: 37298823 DOI: 10.3390/molecules28114342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/14/2023] [Accepted: 05/24/2023] [Indexed: 06/12/2023] Open
Abstract
With the development of the chemical industry, benzene, toluene, ethylbenzene, and xylene (BTEX) have gradually become the major indoor air pollutants. Various gas treatment techniques are widely used to prevent the physical and mental health hazards of BTEX in semi-enclosed spaces. Chlorine dioxide (ClO2) is an alternative to chlorine as a secondary disinfectant with a strong oxidation ability, a wide range of action, and no carcinogenic effects. In addition, ClO2 has a unique permeability which allows it to eliminate volatile contaminants from the source. However, little attention has been paid to the removal of BTEX by ClO2, due to the difficulty of removing BTEX in semi-enclosed areas and the lack of testing methods for the reaction intermediates. Therefore, this study explored the performance of ClO2 advanced oxidation technology on both liquid and gaseous benzene, toluene, o-xylene, and m-xylene. The results showed that ClO2 was efficient in the removal of BTEX. The byproducts were detected by gas chromatography-mass spectrometry (GC-MS) and the reaction mechanism was speculated using the ab initio molecular orbital calculations method. The results demonstrated that ClO2 could remove the BTEX from the water and the air without causing secondary pollution.
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Affiliation(s)
- Anlong Wang
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Yina Qiao
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Yufan Zhang
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Riya Jin
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Jiaoqin Liu
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Zengdi He
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Mengye Jia
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Jingshuai Gao
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
| | - Chengjie Guo
- School of Environment and Safety Engineering, North University of China, Taiyuan 030051, China
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22
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Alikarami S, Soltanizadeh A, Rashchi F. Enhancing decomposition of rhodamine (RhB) and methylene blue (MB) using CdS decorated with Ag or Ru driven by visible radiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:62847-62866. [PMID: 36947379 DOI: 10.1007/s11356-023-26542-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/15/2023] [Indexed: 05/10/2023]
Abstract
The development of photocatalysts has an influential role in solving the environmental pollution crisis. Herein, the two different noble metals of silver (Ag)/ruthenium (Ru) were separately decorated on cadmium sulfide (CdS) photocatalysts by novel chemical methods. Characterization tests confirmed the formation of Ag/Ru-decorated CdS with spherical morphologies. According to the DRS and PL experiments, Ru-decorated CdS accounted for the highest light absorbance and the most accelerated transfer and detachment of photoelectrons/holes, followed by Ag-decorated CdS compared to pure CdS, which brought proper optical properties of Ag/Ru-decorated CdS. The photodecomposition of methylene blue (MB)/rhodamine B (RhB) as dyes and phenol as a colorless pollutant in the presence of Ag-decorated CdS (96%, 95%, and 69%) and Ru-decorated CdS (100%, 100%, and 80%) exposed to visible light radiation climbed compared to pure CdS (80%, 67%, and 61%) respectively. The influence of various parameters on the MB/RhB photocatalytic activity was investigated. The quenching experiment determined the functions of active species. Finally, experimental results proved that the MB/RhB photodecomposition by Ag/Ru-decorated CdS followed the pseudo-first-order kinetic model.
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Affiliation(s)
- Somayeh Alikarami
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Ali Soltanizadeh
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fereshteh Rashchi
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
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23
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Fatimah I, Sulistyowati RZ, Wijayana A, Purwiandono G, Sagadevan S. Z-scheme NiO/g-C 3N 4 nanocomposites prepared using phyto-mediated nickel nanoparticles for the efficient photocatalytic degradation. Heliyon 2023; 9:e16232. [PMID: 37251879 PMCID: PMC10209412 DOI: 10.1016/j.heliyon.2023.e16232] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 05/05/2023] [Accepted: 05/10/2023] [Indexed: 05/31/2023] Open
Abstract
Highly-effective photocatalyst of NiO/g-C3N4 with was successfully synthesized by using phyto-mediated-synthesized nickel nanoparticles. The preparation was initiated by synthesizing nickel nanoparticles by using Tinosphora cordifolia stem extract under ultrasound-assisted method followed by the dispersing onto g-C3N4 structure. The study focused on physicochemical characterization and photocatalytic activity as function of the percentage of Ni in the nanocomposite. The photocatalytic activity examinations were carried out to rhodamine B and tetracycline photocatalytic oxidation. The results demonstrated that graphitic carbon nitride is effectively improved the photocatalytic activity of NiO for both photocatalytic oxidation reactions. From the varied Ni content of 5; 10; and 20 %wt., it was also found that the highest photoactivity was achieved by the composite having 10 %wt. of nickel content. The high effectivity was showed by degradation efficiency of 95% toward Rhodamine B and 98% toward tetracycline. The examination on effect of scavengers suggests that Z-scheme involved in the photocatalytic mechanism which facilitated the efficient separation of the photogenerated electron-hole pairs under visible light illumination. In summary, the present findings provide a green approach for fabricating the effective photocatalysts for organic contaminant degradation.
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Affiliation(s)
- Is Fatimah
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang Km 14, Sleman, Yogyakarta, Indonesia
| | - Rizky Zenita Sulistyowati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang Km 14, Sleman, Yogyakarta, Indonesia
| | - Adytia Wijayana
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang Km 14, Sleman, Yogyakarta, Indonesia
| | - Gani Purwiandono
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kampus Terpadu UII, Jl. Kaliurang Km 14, Sleman, Yogyakarta, Indonesia
| | - Suresh Sagadevan
- Nanotechnology and Catalysis Research Center (NANOCAT), Universiti Malaya, Level 3 Block A, 50603 Kuala Lumpur, Federal Territory of Kuala Lumpur, Malaysia
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24
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Tomic A, Kovacic M, Kusic H, Karamanis P, Rasulev B, Loncaric Bozic A. Structural Features Promoting Photocatalytic Degradation of Contaminants of Emerging Concern: Insights into Degradation Mechanism Employing QSA/PR Modeling. Molecules 2023; 28:molecules28062443. [PMID: 36985414 PMCID: PMC10057466 DOI: 10.3390/molecules28062443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/10/2023] Open
Abstract
Although heterogeneous photocatalysis has shown promising results in degradation of contaminants of emerging concern (CECs), the mechanistic implications related to structural diversity of chemicals, affecting oxidative (by HO•) or reductive (by O2•−) degradation pathways are still scarce. In this study, the degradation extents and rates of selected organics in the absence and presence of common scavengers for reactive oxygen species (ROS) generated during photocatalytic treatment were determined. The obtained values were then brought into correlation as K coefficients (MHO•/MO2•−), denoting the ratio of organics degraded by two occurring mechanisms: oxidation and reduction via HO• and O2•−. The compounds possessing K >> 1 favor oxidative degradation over HO•, and vice versa for reductive degradation (i.e., if K << 1 compounds undergo reductive reactions driven by O2•−). Such empirical values were brought into correlation with structural features of CECs, represented by molecular descriptors, employing a quantitative structure activity/property relationship (QSA/PR) modeling. The functional stability and predictive power of the resulting QSA/PR model was confirmed by internal and external cross-validation. The most influential descriptors were found to be the size of the molecule and presence/absence of particular molecular fragments such as C − O and C − Cl bonds; the latter favors HO•-driven reaction, while the former the reductive pathway. The developed QSA/PR models can be considered robust predictive tools for evaluating distribution between degradation mechanisms occurring in photocatalytic treatment.
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Affiliation(s)
- Antonija Tomic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev Trg 19, 10000 Zagreb, Croatia
| | - Marin Kovacic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev Trg 19, 10000 Zagreb, Croatia
| | - Hrvoje Kusic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev Trg 19, 10000 Zagreb, Croatia
- Department for Packaging, Recycling and Environmental Protection, University North, Trg dr. Žarka Dolinara 1, 48000 Koprivnica, Croatia
- Correspondence: ; Tel.: +385-1-4597-160
| | - Panaghiotis Karamanis
- E2S UPPA, CNRS, IPREM, Université de Pau et des Pays de l’Adour, Hélioparc Pau Pyrénées, 2 Rue de President Angot, 64053 Pau, France
| | - Bakhtiyor Rasulev
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, ND 58102, USA
| | - Ana Loncaric Bozic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev Trg 19, 10000 Zagreb, Croatia
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25
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Application of BiOX Photocatalyst to Activate Peroxydisulfate Ion-Investigation of a Combined Process for the Removal of Organic Pollutants from Water. Catalysts 2023. [DOI: 10.3390/catal13030513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
The persulfate-based advanced oxidation processes employing heterogeneous photocatalysts to generate sulfate radicals (SO4•−) from peroxydisulfate ion (PDS, S2O82−) have been extensively investigated to remove organic pollutants. In this work, BiOX (X = Cl, Br, and I) photocatalysts were investigated to activate PDS and enhance the transformation rate of various organic substances under UV (398 nm) and Vis (400–700 nm) radiation. For BiOCl and BiOBr, in addition to excitability, the light-induced oxygen vacancies are decisive in the activity. Although without organic substances, the BiOI efficiency highly exceeds that of BiOBr and BiOCl for PDS activation (for BiOI, 15–20%, while for BiOBr and BiOCl, only 3–4% of the PDS transformed); each BiOX catalyst showed enhanced activity for 1,4-hydroquinone (HQ) transformation due to the semiquinone radical-initiated PDS activation. For sulfamethoxypyridazine (SMP), the transformation is driven by direct charge transfer, and the effect of PDS was less manifested. BiOI proved efficient for transforming various organic substances even under Vis radiation. The efficiency was enhanced by PDS addition (HQ is wholly transformed within 20 min, and SMP conversion increased from 40% to 90%) without damaging the catalyst; its activity did change over three consecutive cycles. Results related to the well-adsorbed trimethoprim (TRIM) and application of biologically treated domestic wastewater as a matrix highlighted the limiting factors of the method and visible light active photocatalyst, BiOI.
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26
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Liu C, Xu C, Wang W, Chen L, Li X, Wu Y. Oxygen Vacancy Mediated Band-Gap Engineering via B-Doping for Enhancing Z-Scheme A-TiO 2/R-TiO 2 Heterojunction Photocatalytic Performance. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:794. [PMID: 36903674 PMCID: PMC10005070 DOI: 10.3390/nano13050794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/18/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
Fabrication of Z-scheme heterojunction photocatalysts is an ideal strategy for solving environmental problems by providing inexhaustible solar energy. A direct Z-scheme anatase TiO2/rutile TiO2 heterojunction photocatalyst was prepared using a facile B-doping strategy. The band structure and oxygen-vacancy content can be successfully tailored by controlling the amount of B-dopant. The photocatalytic performance was enhanced via the Z-scheme transfer path formed between the B doped anatase-TiO2 and rutile-TiO2, optimized band structure with markedly positively shifted band potentials, and the synergistically-mediated oxygen vacancy contents. Moreover, the optimization study indicated that 10% B-doping with the R-TiO2 to A-TiO2 weight ratio of 0.04 could achieve the highest photocatalytic performance. This work may provide an effective approach to synthesize nonmetal-doped semiconductor photocatalysts with tunable-energy structures and promote the efficiency of charge separation.
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27
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Xie F, Shi Q, Bai H, Liu M, Zhang J, Qi M, Zhang J, Li Z, Zhu W. An anode fabricated by Co electrodeposition on ZIF-8/CNTs/CF for peroxymonosulfate (PMS) activation. CHEMOSPHERE 2023; 313:137384. [PMID: 36436580 DOI: 10.1016/j.chemosphere.2022.137384] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 06/16/2023]
Abstract
A Co@ZIF-8/CNTs-CF anode for PMS activation was prepared by Co electrodeposition on carbon felt (CF) modified with ZIF-8 and carbon nanotubes (CNTs). The results showed that the fabricated Co@ZIF-8/CNTs-CF anode was an effective peroxymonosulfate (PMS) activator toward tetracycline (TC) removal. Compared with that in reaction system of bare CF anode + PMS, the reaction system of Co@ZIF-8/CNTs-CF anode + PMS exhibited 3.08 times decrease in the activation energy demanded and 4.21 times increase in the reaction rate constant (k), resulting in a kinetic favorable process of PMS activation by the Co@ZIF-8/CNTs-CF anode. The enhanced activation performance of the fabricated anode was ascribed to the high contents of the pyrrolic N and low valence state of Co in the Co@ZIF-8/CNTs-CF anode. Furthermore, the influence factors on the characteristics of transformation among the generated reactive species during the anodic PMS activation process were comprehensively investigated by the quenching experiments and the electron paramagnetic resonance (EPR) tests. The results showed that the SO4•- and reactive oxygen-containing reactive species (O2•- and 1O2) were generated during the activation of PMS by anode and became the major contributors toward TC removal. The production of 1O2 was through the dismutation of O2•-. In addition, the EPR experiments demonstrated that O2•- was generated mainly through the anodic PMS activation but the electrochemically driven molecular oxygen reduction reaction (ORR) process. The fabricated Co@ZIF-8/CNTs-CF anode for PMS activation provided a reference for the wastewater treatment based on the electrochemical advanced oxidation processes (EAOPs).
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Affiliation(s)
- Fangshu Xie
- Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Qiyu Shi
- Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Huiling Bai
- College of Literature, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Meiyu Liu
- Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Jingbin Zhang
- Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Meiyun Qi
- Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Jianfeng Zhang
- Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Zhihua Li
- Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
| | - Weihuang Zhu
- Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi'an University of Architecture and Technology, Xi'an, 710055, China; Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China.
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28
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Liu Z, An Y, Li X. Insight into mechanism of peroxydisulfate activation by natural pyrite: Participation of Fe(IV) and regulation of Fe(III)/Fe(II) cycle by sulfur species. CHEMOSPHERE 2023; 314:137657. [PMID: 36581120 DOI: 10.1016/j.chemosphere.2022.137657] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 12/18/2022] [Accepted: 12/24/2022] [Indexed: 06/17/2023]
Abstract
In this study, natural pyrite (NP) was used to activate peroxydisulfate (PDS) for imidacloprid (IMD) degradation. NP was characterized by X-ray diffraction (XRD), X-ray fluorescence spectrometry (XRF), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Effects of key reaction parameters (NP dosage, PDS concentration and initial pH) and co-existing ions on IMD degradation in the NP/PDS system were investigated. Quenching experiments and electron spin resonance (ESR) tests identified the existence of sulfate radical (SO4•-), hydroxyl radical (•OH), singlet oxygen (1O2) and superoxide radical (O2•-). The cumulative concentration of SO4•- and •OH were quantified by the formation of benzoquinone (BQ) and p-hydroxybenzoic acid (HBA), respectively. Meanwhile, more than 60% of methylphenyl sulfoxide (PMSO) was selectively converted to methylphenyl sulfone (PMSO2), revealing that Fe(IV) was dominant in the NP/PDS system. The order of contribution of the three reactive species in the NP/PDS system was Fe(IV) > •OH > SO4•- (contributions of 1O2 and O2•- were negligible). Fe(II) released from NP played a crucial role in PDS activation, and sulfur species in NP could also boost Fe(III)/Fe(II) cycle and contribute to the generation of reactive species. Further, the possible degradation pathways of IMD have been proposed based on the detected intermediates using high-performance liquid chromatography-mass spectrometry (HPLC-MS), and the toxicity (including acute toxicity, developmental toxicity and mutagenicity) of these intermediates have been predicted using Toxicity Estimation Software Tool (T.E.S.T). Moreover, NP/PDS system was applied in four natural water bodies and IMD degradation efficiency reached more than 97% after adjusting the pH to 3. The fluorescence excitation-emission matrix (EEM) spectra showed that in addition to IMD, NP/PDS system could also remove other impurities.
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Affiliation(s)
- Zihao Liu
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Yujiao An
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Gansu, 730000, PR China
| | - Xiaowan Li
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Gansu, 730000, PR China.
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29
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Enriched Surface Oxygen Vacancies of Fe 2(MoO 4) 3 Catalysts for a PDS-Activated photoFenton System. Molecules 2022; 28:molecules28010333. [PMID: 36615527 PMCID: PMC9821920 DOI: 10.3390/molecules28010333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 01/04/2023] Open
Abstract
The environmentally benign Fe2(MoO4)3 plays a crucial role in the transformation of organic contaminants, either through catalytically decomposing oxidants or through directly oxidizing the target pollutants. Because of their dual roles and the complex surface chemical reactions, the mechanism involved in Fe2(MoO4)3-catalyzed PDS activation processes remains obscure. In this study, Fe2(MoO4)3 was prepared via the hydrothermal and calcine method, and photoFenton degradation of methyl orange (MO) was used to evaluate the catalytic performance of Fe2(MoO4)3. Fe2(MoO4)3 catalysts with abundant surface oxygen vacancies were used to construct a synergistic system involving a photocatalyst and PDS activation. The oxygen vacancies and Fe2+/Fe3+ shuttle played key roles in the novel pathways for generation of •O2-, h+, and 1O2 in the UV-Vis + PDS + FMO-6 photoFenton system. This study advances the fundamental understanding of the underlying mechanism involved in the transition metal oxide-catalyzed PDS activation processes.
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30
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Diko CS, Abitonze M, Liu Y, Zhu Y, Yang Y. Synthesis and Applications of Dimensional SnS 2 and SnS 2/Carbon Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4497. [PMID: 36558350 PMCID: PMC9786647 DOI: 10.3390/nano12244497] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
Dimensional nanomaterials can offer enhanced application properties benefiting from their sizes and morphological orientations. Tin disulfide (SnS2) and carbon are typical sources of dimensional nanomaterials. SnS2 is a semiconductor with visible light adsorption properties and has shown high energy density and long cycle life in energy storage processes. The integration of SnS2 and carbon materials has shown enhanced visible light absorption and electron transmission efficiency. This helps to alleviate the volume expansion of SnS2 which is a limitation during energy storage processes and provides a favorable bandgap in photocatalytic degradation. Several innovative approaches have been geared toward controlling the size, shape, and hybridization of SnS2/Carbon composite nanostructures. However, dimensional nanomaterials of SnS2 and SnS2/Carbon have rarely been discussed. This review summarizes the synthesis methods of zero-, one-, two-, and three-dimensional SnS2 and SnS2/Carbon composite nanomaterials through wet and solid-state synthesis strategies. Moreover, the unique properties that promote their advances in photocatalysis and energy conversion and storage are discussed. Finally, some remarks and perspectives on the challenges and opportunities for exploring advanced SnS2/Carbon nanomaterials are presented.
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Affiliation(s)
| | - Maurice Abitonze
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Yining Liu
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Yimin Zhu
- College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, China
| | - Yan Yang
- Dalian Research Institute of Petroleum and Petrochemicals, SINOPEC, Dalian 116045, China
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31
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Palharim PH, Caira MCD, de Araújo Gusmão C, Ramos B, dos Santos GT, Rodrigues Jr. O, Teixeira ACSC. Effect of temperature and time on the hydrothermal synthesis of WO3-AgCl photocatalysts regarding photocatalytic activity. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.10.045] [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]
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32
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High Oxygen-Yield Homogeneous Sonophotocatalysis for Water-splitting Using Theraphthal. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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33
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Molinara M, Cancelliere R, Di Tinno A, Ferrigno L, Shuba M, Kuzhir P, Maffucci A, Micheli L. A Deep Learning Approach to Organic Pollutants Classification Using Voltammetry. SENSORS (BASEL, SWITZERLAND) 2022; 22:s22208032. [PMID: 36298383 PMCID: PMC9608622 DOI: 10.3390/s22208032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/18/2022] [Accepted: 10/18/2022] [Indexed: 05/27/2023]
Abstract
This paper proposes a deep leaning technique for accurate detection and reliable classification of organic pollutants in water. The pollutants are detected by means of cyclic voltammetry characterizations made by using low-cost disposable screen-printed electrodes. The paper demonstrates the possibility of strongly improving the detection of such platforms by modifying them with nanomaterials. The classification is addressed by using a deep learning approach with convolutional neural networks. To this end, the results of the voltammetry analysis are transformed into equivalent RGB images by means of Gramian angular field transformations. The proposed technique is applied to the detection and classification of hydroquinone and benzoquinone, which are particularly challenging since these two pollutants have a similar electroactivity and thus the voltammetry curves exhibit overlapping peaks. The modification of electrodes by carbon nanotubes improves the sensitivity of a factor of about ×25, whereas the convolution neural network after Gramian transformation correctly classifies 100% of the experiments.
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Affiliation(s)
- Mario Molinara
- Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, 03043 Cassino, Italy
| | - Rocco Cancelliere
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Alessio Di Tinno
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
| | - Luigi Ferrigno
- Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, 03043 Cassino, Italy
| | - Mikhail Shuba
- Center of Physical Science and Technologies, 10257 Vilnius, Lithuania
| | - Polina Kuzhir
- Institute of Photonics, Department of Physics and Mathematics, University of Eastern Finland, 80101 Joensuu, Finland
| | - Antonio Maffucci
- Department of Electrical and Information Engineering, University of Cassino and Southern Lazio, 03043 Cassino, Italy
- INFN, Italian National Institute for Nuclear Physics, 00044 Frascati, Italy
| | - Laura Micheli
- Department of Chemical Science and Technologies, University of Rome “Tor Vergata”, 00133 Rome, Italy
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34
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Long W, Sevbitov A, Abdalkareem Jasim S, Kravchenko O, Al-Gazally ME, Chupradit S, Kzar HH, Kazemnejadi M. A switchable-oxidative cellulose filter paper bearing immobilized Mn(III)-salen complex for alcohol oxidation. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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35
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Najjar M, Nasseri MA, Allahresani A, Darroudi M. Green and efficient synthesis of carbon quantum dots from cordia myxa L. and their application in photocatalytic degradation of organic dyes. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Murnaghan CJ, Skillen N, Hackett B, Lafferty J, Robertson PKJ, Sheldrake GN. Toward the Photocatalytic Valorization of Lignin: Conversion of a Model Lignin Hexamer with Multiple Functionalities. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2022; 10:12107-12116. [PMID: 36161097 PMCID: PMC9490757 DOI: 10.1021/acssuschemeng.2c01606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 08/19/2022] [Indexed: 05/27/2023]
Abstract
The valorization of biomass via photocatalysis is an area of expanding research with advances in new technologies and materials with a view toward enhanced sustainability being reported. A significant challenge within this field, however, is understanding the impact photocatalysis has on more recalcitrant compounds present in biomass, such as lignin. Moreover, the current state of lignin model compound research is still largely focused on the breakdown of small models containing typically only one linkage. Described herein is the use of TiO2-mediated photocatalysis for the degradation of a representative hexameric lignin model compound which contains multiple linkages (e.g., 5-5', β-5, and β-O-4). The results revealed that while cleavage of the β-5 and β-O-4 occurred, the 5-5' appeared to remain intact within the identified reaction intermediates. To understand some of the more fundamental questions, a dimeric compound with a biphenyl linkage was synthesized and studied under photocatalytic conditions. The proposal of intermediates and pathways of degradation based on the studies conducted is presented and discussed herein.
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Díaz-Sánchez M, Hernández-Benítez I, Díaz-García D, Prashar S, Gómez-Ruiz S. Nanohybrids based on F-doped titanium dioxides and carbon species with enhanced dual adsorption-photodegradation activity for water decontamination. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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38
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Nicomel NR, Li LY, Mohamed BA, Ramim SS. Adsorption of p-benzoquinone at low concentrations from aqueous media using biosolid-based activated carbon. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 316:115263. [PMID: 35584595 DOI: 10.1016/j.jenvman.2022.115263] [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: 12/17/2021] [Revised: 04/17/2022] [Accepted: 05/07/2022] [Indexed: 06/15/2023]
Abstract
The toxic oxidation intermediate p-benzoquinone exists in aqueous environments at dilute concentrations above the fish-toxicity limit of 0.045 mg/L, affecting aquatic life. The reduction of this compound to the concentrations required to achieve safe discharge limits is challenging. In this study, the adsorptive removal of p-benzoquinone by a biosolid-based activated carbon (SBAC) was systematically investigated in batch experiments. The adsorption rate was rapid, and the bulk of p-benzoquinone adsorption occurred within 30 min. The maximum adsorption capacity of SBAC was estimated at 19.6 mg/g using the Langmuir isotherm model. Its adsorptivity was independent of temperature from 6 to 40 °C. The presence of 6 g/L of chloride and 500 mg/L of sulphate did not affect the removal of 1 mg/L p-benzoquinone, whereas 15 mg/L of humic acid media slightly decreased the p-benzoquinone removal from 87.0% to 83.2%. Diffusion, hydrophilic, and electrostatic interactions (i.e., dipole-dipole) govern the adsorption of p-benzoquinone and are influenced by the SBAC surface chemistry. Biosolid-based activated carbon can lower the residual p-benzoquinone to below the fish-toxicity limit of 0.045 mg/L within 1 h of sequential adsorption. Thus, biosolid-based activated carbon can effectively remove p-benzoquinone from aqueous environments; this is a waste-to-resource approach that addresses sustainability (waste disposal) and environmental protection (pollutant removal).
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Affiliation(s)
- Nina Ricci Nicomel
- Department of Civil Engineering, University of British Columbia, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada
| | - Loretta Y Li
- Department of Civil Engineering, University of British Columbia, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada.
| | - Badr A Mohamed
- Department of Civil Engineering, University of British Columbia, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada; Department of Agricultural Engineering, Cairo University, Giza 12613, Egypt
| | - Samia Syeoti Ramim
- Department of Civil Engineering, University of British Columbia, 6250 Applied Science Lane, Vancouver, BC, V6T 1Z4, Canada
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39
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Szabó V, Mészáros R, Kónya Z, Kukovecz Á, Pálinkó I, Sipos P, Szabados M. Preparation and characterization of MnIn-layered double hydroxides (LDHs), extension of the synthesis to fabricate MnM(III)-LDHs (M = Al, Sc, Cr, Fe, Ga), and the comparison of their photocatalytic and catalytic activities in the oxidation of hydroquinone. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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40
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Piszter G, Kertész K, Nagy G, Baji Z, Endre Horváth Z, Bálint Z, Sándor Pap J, Péter Biró L. Spectral tuning of biotemplated ZnO photonic nanoarchitectures for photocatalytic applications. ROYAL SOCIETY OPEN SCIENCE 2022. [PMID: 35845847 DOI: 10.6084/m9.figshare.c.6066566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The photocatalytic activity of a flat surface can be increased by micro- and nanostructuring the interface to increase the area of the contact surface between the photocatalyst and the solute, and moreover, to optimize charge carrier transfer. Further enhancement can be achieved by using photonic nanostructures, which exhibit photonic band gap (PBG). Structurally coloured butterfly wings offer a rich 'library' of PBGs in the visible spectral range which can be used as naturally tuned sample sets for biotemplating. We used conformal atomic layer deposition of ZnO on the wings of various butterfly species (Arhopala asopia, Hypochrysops polycletus, Morpho sulkowskyi, Polyommatus icarus) possessing structural colour extending from the near UV to the blue wavelength range, to test the effects arising from the nanostructured surfaces and from the presence of different types of PBGs. Aqueous solutions of rhodamine B were used to test the enhancement of photocatalytic activity that was found for all ZnO-coated butterfly wings. The best reaction rate of decomposing rhodamine B when illuminated with visible light was found in 15 nm ZnO coated M. sulkowskyi wing, the reflectance of which had the highest overlap with the absorption band of the dye and had the highest reflectance intensity.
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Affiliation(s)
- Gábor Piszter
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Krisztián Kertész
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Gergely Nagy
- Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsófia Baji
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsolt Endre Horváth
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsolt Bálint
- Department of Zoology, Hungarian Natural History Museum, 13 Baross St., 1088 Budapest, Hungary
| | - József Sándor Pap
- Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - László Péter Biró
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
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41
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Piszter G, Kertész K, Nagy G, Baji Z, Endre Horváth Z, Bálint Z, Sándor Pap J, Péter Biró L. Spectral tuning of biotemplated ZnO photonic nanoarchitectures for photocatalytic applications. ROYAL SOCIETY OPEN SCIENCE 2022; 9:220090. [PMID: 35845847 PMCID: PMC9277245 DOI: 10.1098/rsos.220090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 06/14/2022] [Indexed: 05/16/2023]
Abstract
The photocatalytic activity of a flat surface can be increased by micro- and nanostructuring the interface to increase the area of the contact surface between the photocatalyst and the solute, and moreover, to optimize charge carrier transfer. Further enhancement can be achieved by using photonic nanostructures, which exhibit photonic band gap (PBG). Structurally coloured butterfly wings offer a rich 'library' of PBGs in the visible spectral range which can be used as naturally tuned sample sets for biotemplating. We used conformal atomic layer deposition of ZnO on the wings of various butterfly species (Arhopala asopia, Hypochrysops polycletus, Morpho sulkowskyi, Polyommatus icarus) possessing structural colour extending from the near UV to the blue wavelength range, to test the effects arising from the nanostructured surfaces and from the presence of different types of PBGs. Aqueous solutions of rhodamine B were used to test the enhancement of photocatalytic activity that was found for all ZnO-coated butterfly wings. The best reaction rate of decomposing rhodamine B when illuminated with visible light was found in 15 nm ZnO coated M. sulkowskyi wing, the reflectance of which had the highest overlap with the absorption band of the dye and had the highest reflectance intensity.
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Affiliation(s)
- Gábor Piszter
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Krisztián Kertész
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Gergely Nagy
- Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsófia Baji
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsolt Endre Horváth
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsolt Bálint
- Department of Zoology, Hungarian Natural History Museum, 13 Baross St., 1088 Budapest, Hungary
| | - József Sándor Pap
- Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - László Péter Biró
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
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42
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Piszter G, Kertész K, Nagy G, Baji Z, Endre Horváth Z, Bálint Z, Sándor Pap J, Péter Biró L. Spectral tuning of biotemplated ZnO photonic nanoarchitectures for photocatalytic applications. ROYAL SOCIETY OPEN SCIENCE 2022. [PMID: 35845847 DOI: 10.5061/dryad.w9ghx3fr8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The photocatalytic activity of a flat surface can be increased by micro- and nanostructuring the interface to increase the area of the contact surface between the photocatalyst and the solute, and moreover, to optimize charge carrier transfer. Further enhancement can be achieved by using photonic nanostructures, which exhibit photonic band gap (PBG). Structurally coloured butterfly wings offer a rich 'library' of PBGs in the visible spectral range which can be used as naturally tuned sample sets for biotemplating. We used conformal atomic layer deposition of ZnO on the wings of various butterfly species (Arhopala asopia, Hypochrysops polycletus, Morpho sulkowskyi, Polyommatus icarus) possessing structural colour extending from the near UV to the blue wavelength range, to test the effects arising from the nanostructured surfaces and from the presence of different types of PBGs. Aqueous solutions of rhodamine B were used to test the enhancement of photocatalytic activity that was found for all ZnO-coated butterfly wings. The best reaction rate of decomposing rhodamine B when illuminated with visible light was found in 15 nm ZnO coated M. sulkowskyi wing, the reflectance of which had the highest overlap with the absorption band of the dye and had the highest reflectance intensity.
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Affiliation(s)
- Gábor Piszter
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Krisztián Kertész
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Gergely Nagy
- Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsófia Baji
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsolt Endre Horváth
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - Zsolt Bálint
- Department of Zoology, Hungarian Natural History Museum, 13 Baross St., 1088 Budapest, Hungary
| | - József Sándor Pap
- Institute for Energy Security and Environmental Safety, Surface Chemistry and Catalysis Department, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
| | - László Péter Biró
- Institute of Technical Physics and Materials Science, Centre for Energy Research, 29-33 Konkoly Thege M. St., 1121 Budapest, Hungary
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43
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Gupta R, Kumar G, Gupta R. Encapsulation-Led Adsorption of Neutral Dyes and Complete Photodegradation of Cationic Dyes and Antipsychotic Drugs by Lanthanide-Based Macrocycles. Inorg Chem 2022; 61:7682-7699. [PMID: 35543424 DOI: 10.1021/acs.inorgchem.2c00688] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Molecular architectures offering large cavities can accommodate guest molecules, while their compositional engineering allows tunability of the band gap to support photocatalysis using visible light. In this work, two lanthanide (Ln)-based macrocycles, synthesized using a cobalt-based metalloligand and offering large rectangular cavities, exhibited selective adsorption of neutral dyes over both anionic and cationic dyes. Both Ln macrocycles illustrated complete photodegradation of cationic dyes using visible light without the use of any oxidant. Both Ln macrocycles exhibited complete photodegradation of not only cationic dyes but also a few phenothiazine-based antipsychotic drugs. Photocatalysis involved the generation of reactive oxygen species (ROS), which was corroborated with the band gap of two Ln macrocycles. These results were supported by radical scavenger studies and the quantitative estimation of superoxide and hydroxyl radicals. Complete photodegradation of both dyes and drugs was confirmed by spectral studies, while the generation of CO2 and N2 gases was established by gas chromatography. Importantly, Ln macrocycles were able to distinguish between the neutral dyes that were quantitatively adsorbed and the cationic dyes/drugs that were completely photodegraded.
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Affiliation(s)
- Ruchika Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Gulshan Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India
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44
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Gram scale, metal-free and selective aerobic oxidation of alcohol and alkyl benzenes using homogeneous recyclable TAIm[MnO4] oxidative ionic liquid under mild conditions: Microwave/ ultrasonic-assisted to carboxylic acid. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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45
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Controllable Introduction of Surface Defects on CH3NH3PbI3 Perovskite. NANOMATERIALS 2022; 12:nano12061002. [PMID: 35335815 PMCID: PMC8954356 DOI: 10.3390/nano12061002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/09/2022] [Accepted: 03/16/2022] [Indexed: 11/28/2022]
Abstract
One of the unique characteristics of semiconductors is the strong dependence of their properties on crystal defects and doping. However, due to the species diversity and low density, it is very difficult to control the type and concentration of the defects. In perovskite materials, crystal defects are randomly formed during the fast crystallization process, causing large heterogeneity of the samples. Here, in this work, we report a controllable method to introduce surface defects on CH3NH3PbI3 perovskite materials via the interaction with 1,4-benzoquinone (BQ) molecules on the gas and solid interface. After the adsorption of BQ molecules on the perovskite surface, surface defects can be generated by photoinduced chemical reactions. The concentration of the defects can thus be controlled by precisely regulating the laser irradiation time. The concentration of the defects can be characterized by a gradually decreased PL intensity and lifetime and was found to influence the atmospheric response and the subsequent acetone-induced degradation of the materials. These results demonstrate that crystal defects in perovskite materials can be controllably introduced, which provides a possible way to fully understand the correlation between the nature and chemical structure of these defects.
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46
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Farrera-Borjas IA, Tzompantzi F, Sánchez-Cantú M, Barrera-Rodríguez A, Tzompantzi-Flores C, Gómez R, Santolalla-Vargas C. gPhotocatalytic mineralization of phenol by Sn-modified calcites. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113913] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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Feng X, Wei J, Hu X, Liu B, Yang C, Yang J. Phototransformation of tetrabromobisphenol A in saline water under simulated sunlight irradiation. CHEMOSPHERE 2022; 291:132697. [PMID: 34715098 DOI: 10.1016/j.chemosphere.2021.132697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/22/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
The widespread use of halogenated flame retardants in recent years has led to the accumulation of TBBPA in water, which may cause potential harm to living organisms. The phototransformation of the flame retardant TBBPA in alkaline saline water under simulated sunlight irradiation was investigated. The effects of abiotic factors such as the initial concentration of TBBPA, chloride ion concentration, solution pH, inorganic anions and cations, dissolved organic matter (DOM) were studied. The results showed that the phototransformation rate of TBBPA accelerated with the decrease of the initial concentration of TBBPA, the increase of chloride ion concentration and solution pH. The scavenging experiments showed that •OH, 1O2, O2•- and 3TBBPA* all participated in the phototransformation of TBBPA. The presence of NO3-, CO32-, SO42-, Mg2+, Ca2+, Fe3+ and fulvic acid (FA) all inhibited the phototransformation of TBBPA in the present study. The phototransformation products of TBBPA were detected by liquid chromatography-mass spectrometry (LC-MS), and the phototransformation pathways were proposed. This is the first report on the photo-induced generation of halogen exchange products from TBBPA in saline solutions, which will contribute to a better understanding of the environmental behavior and risks of BFRs in water.
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Affiliation(s)
- Xue Feng
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China
| | - Jinsheng Wei
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China
| | - Xuefeng Hu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China.
| | - Baiyu Liu
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China
| | - Chen Yang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China
| | - Junhan Yang
- School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, PR China
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48
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Liu D, Li Y, Zhang X, Yang L, Luo X. Heterostructured perylene diimide (PDI) supramolecular nanorods with SnO2 quantum dots for enhanced visible‐light photocatalytic activity and stability. ChemCatChem 2022. [DOI: 10.1002/cctc.202200087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Di Liu
- China University of Mining and Technology - Beijing Campus School of Chemical & Environmental Engineering Yifu Building, Ding-11, Xueyuan Road, Haidian District, Beijing City 100083 Beijing CHINA
| | - Yi Li
- China University of Mining and Technology Beijing Campus school of chemical and environment engineering Number Ding-11, Xueyuan Road, Haidian District 100083 Beijing CHINA
| | - XinLing Zhang
- China University of Mining and Technology Beijing Campus school of chemical and environment engineering CHINA
| | - Li Yang
- China University of Mining and Technology Beijing Campus school of chemical and environment engineering CHINA
| | - Xin Luo
- China University of Mining and Technology Beijing Campus school of chemical and environment engineering CHINA
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49
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Qiu S, Tang W, Yang S, Xie J, Yu D, Garcia-Rodriguez O, Qu J, Bai S, Deng F. A microbubble-assisted rotary tubular titanium cathode for boosting Fenton's reagents in the electro-Fenton process. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127403. [PMID: 34879586 DOI: 10.1016/j.jhazmat.2021.127403] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/25/2021] [Accepted: 09/29/2021] [Indexed: 06/13/2023]
Abstract
To improve cathodic H2O2 accumulation and Fe3+ reduction synchronously in the electro-Fenton (EF) process, a microbubble-assisted rotary tubular titanium cathode (MRTTC) was designed for the first time. By utilizing this MRTTC, H2O2 accumulation improved by 4.05-fold, along with a 200% enhancement in iron reduction compared to the conventional EF process. This promotion is mainly attributed to a considerably higher oxygen mass transfer, which reduces the thickness of the adhered diffusion layer. The oxygen mass transfer coefficient (KLa) also improved from 0.0073 s-1 to 0.012 s-1 at a rotational speed of 300 rpm. In addition, the microbubble-assisted cathode further improved the KLa to 0.047 s-1. The synergistic effect between the rotating and microbubble-assisted cathodes further intensified H2O2 accumulation in MRTTC. Apart from H2O2 promotion, the iron reduction rate was elevated because the newly formed O2-• provided an additional reduction pathway for Fe3+ reduction in addition to the cathodic path. The effectiveness of MRTTC was confirmed by treating a benchmark organic pollutant, sulfamerazine (SMR), where approximately 100% SMR decay was obtained in 3 h. The results show that MRTTC is a novel and promising design in EF for antibiotic wastewater treatment.
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Affiliation(s)
- Shan Qiu
- State Key Laboratory of Urban Water Resources Centre, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Wangwang Tang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Shilin Yang
- State Key Laboratory of Urban Water Resources Centre, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jinyu Xie
- State Key Laboratory of Urban Water Resources Centre, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Difei Yu
- State Key Laboratory of Urban Water Resources Centre, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Orlando Garcia-Rodriguez
- Centre for Water Research, Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Dr. 2, Singapore, 117576, Singapore
| | - Jianhua Qu
- School of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
| | - Shunwen Bai
- State Key Laboratory of Urban Water Resources Centre, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Fengxia Deng
- State Key Laboratory of Urban Water Resources Centre, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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50
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Wang Y, Li X, Liu S, Liu Y, Kong T, Zhang H, Duan X, Chen C, Wang S. Roles of Catalyst Structure and Gas Surface Reaction in the Generation of Hydroxyl Radicals for Photocatalytic Oxidation. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05447] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yuxian Wang
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Xiao Li
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Shenning Liu
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Ya Liu
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Tao Kong
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Huayang Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Xiaoguang Duan
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Chunmao Chen
- State Key Laboratory of Heavy Oil Processing, State Key Laboratory of Petroleum Pollution Control, China University of Petroleum-Beijing, Beijing 102249, China
| | - Shaobin Wang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
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