1
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Niu B, E S, Song Q, Xu Z, Han B, Qin Y. Physicochemical reactions in e-waste recycling. Nat Rev Chem 2024; 8:569-586. [PMID: 38862738 DOI: 10.1038/s41570-024-00616-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2024] [Indexed: 06/13/2024]
Abstract
Electronic waste (e-waste) recycling is becoming a global concern owing to its immense quantity, hazardous character and the potential loss of valuable metals. The many processes involved in e-waste recycling stem from a mixture of physicochemical reactions, and understanding the principles of these reactions can lead to more efficient recycling methods. In this Review, we discuss the principles behind photochemistry, thermochemistry, mechanochemistry, electrochemistry and sonochemistry for metal recovery, polymer decomposition and pollutant elimination from e-waste. We also discuss how these processes induce or improve reaction rates, selectivity and controllability of e-waste recycling based on thermodynamics and kinetics, free radicals, chemical bond energy, electrical potential regulation and more. Lastly, key factors, limitations and suggestions for improvements of these physicochemical reactions for e-waste recycling are highlighted, wherein we also indicate possible research directions for the future.
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Affiliation(s)
- Bo Niu
- Key Laboratory of Farmland Ecological Environment of Hebei Province, College of Resources and Environmental Science, Hebei Agricultural University, Baoding, China.
| | - Shanshan E
- College of Mechanical and Electrical Engineering, Hebei Agricultural University, Baoding, China
| | - Qingming Song
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zhenming Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Bing Han
- School of Agriculture, Food and Ecosystem Sciences, Faculty of Science, The University of Melbourne, Parkville, Victoria, Australia
- School of Engineering, Deakin University, Geelong, Victoria, Australia
| | - Yufei Qin
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
- Jiangxi Green Recycling Co., Ltd, Fengcheng, China
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2
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Habibi M, Habibi-Yangjeh A, Khataee A. Synthesis of visible-light-activated CeO 2-x/BiCrO 3 photocatalysts with S-scheme mechanism: Effectual performances in detoxification of various antibiotics and organic pollutants. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 366:121890. [PMID: 39029170 DOI: 10.1016/j.jenvman.2024.121890] [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: 02/25/2024] [Revised: 07/09/2024] [Accepted: 07/13/2024] [Indexed: 07/21/2024]
Abstract
In today's world, the development of an efficient water treatment strategy requires a prospective approach for the production of active and stable photocatalysts. The construction of heterojunctions with different semiconductors is a promising procedure for improving photocatalytic performances. In the present research, binary CeO2-x/BiCrO3 photocatalysts were synthesized using a hydrothermal route preceded by a calcination step. The CeO2-x/BiCrO3 (15%) photocatalyst proved its unique performance of 29.3, 11.4, 11.7, and 23.0 times better than CeO2 for photodegradation of respectively tetracycline hydrochloride (TCH), metronidazole (MET), azithromycin (AZM), and cephalexin (CPN), as antibiotic pollutants, upon visible light. The effective photocatalytic ability, which was caused by the impressive suppression of charge carriers, can be understood by the developed S-scheme mechanism. Moreover, the lower resistance of CeO2-x/BiCrO3 (15%) compared to CeO2, CeO2-x, and BiCrO3 against the charges transfer was another confirmation for boosted photocatalytic performance of the CeO2-x/BiCrO3 (15%) nanocomposite. Ultimately, the boosted activity, repeated utilization for five runs, and biocompatibility confirmation of the purified solution through pinto bean cultivation exhibited that CeO2-x/BiCrO3 photocatalysts could have the promising capability for detoxification of polluted water.
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Affiliation(s)
- Meysam Habibi
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran.
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Department of Chemical Engineering, Istanbul Technical University, 34469, Istanbul, Turkey; Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Near East University, 99138 Nicosia, Mersin 10, Turkey
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3
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Bijl M, Lim KRG, Garg S, Nicolas NJ, Visser NL, Aizenberg M, van der Hoeven JES, Aizenberg J. Controlling nanoparticle placement in Au/TiO 2 inverse opal photocatalysts. NANOSCALE 2024; 16:13867-13873. [PMID: 38979601 DOI: 10.1039/d4nr01200c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Gold nanoparticle-loaded titania (Au/TiO2) inverse opals are highly ordered three-dimensional photonic structures with enhanced photocatalytic properties. However, fine control over the placement of the Au nanoparticles in the inverse opal structures remains challenging with traditional preparative methods. Here, we present a multi-component co-assembly strategy to prepare high-quality Au/TiO2 inverse opal films in which Au nanoparticles are either located on, or inside the TiO2 matrix, as verified using electron tomography. We report that Au nanoparticles embedded in the TiO2 support exhibit enhanced thermal and mechanical stability compared to non-embedded nanoparticles that are more prone to both leaching and sintering.
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Affiliation(s)
- Marianne Bijl
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands.
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Allston, MA, USA
| | - Kang Rui Garrick Lim
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Allston, MA, USA
| | - Sadhya Garg
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Allston, MA, USA
| | - Natalie J Nicolas
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Allston, MA, USA
| | - Nienke L Visser
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands.
| | - Michael Aizenberg
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Allston, MA, USA
| | - Jessi E S van der Hoeven
- Materials Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Utrecht, Netherlands.
| | - Joanna Aizenberg
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Allston, MA, USA
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4
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Feng S, Nguyen PTT, Ma X, Yan N. Photorefinery of Biomass and Plastics to Renewable Chemicals using Heterogeneous Catalysts. Angew Chem Int Ed Engl 2024:e202408504. [PMID: 38884612 DOI: 10.1002/anie.202408504] [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: 05/05/2024] [Revised: 06/04/2024] [Accepted: 06/17/2024] [Indexed: 06/18/2024]
Abstract
The photocatalytic conversion of biomass and plastic waste provides opportunities for sustainable fuel and chemical production. Heterogeneous photocatalysts, typically composed of semiconductors with distinctive redox properties in their conduction band (CB) and valence band (VB), facilitate both the oxidative and reductive valorization of organic feedstocks. This article provides a comprehensive overview of recent advancements in the photorefinery of biomass and plastics from the perspective of the redox properties of photocatalysts. We explore the roles of the VB and CB in enhancing the value-added conversion of biomass and plastics via various pathways. Our aim is to bridge the gap between photocatalytic mechanisms and renewable carbon feedstock valorization, inspiring further development in photocatalytic refinery of biomass and plastics.
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Affiliation(s)
- Shixiang Feng
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Phuc T T Nguyen
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Xinbin Ma
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
- Centre for Hydrogen Innovations, National University of Singapore, Singapore, 117580, Singapore
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5
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Abbas M, Ilyas M, Hussain K, Ali T, Afzal M, Batool N, Hussain Shah N, Qasim M, Wang Y, Cui Y. Defect-engineered dual Z-scheme core-shell MoS 2/WO 3-x/AgBiS 2 for antibiotic and dyes degradation in photo and night catalysis: Mechanism and pathways. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 356:124375. [PMID: 38880327 DOI: 10.1016/j.envpol.2024.124375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Revised: 06/01/2024] [Accepted: 06/14/2024] [Indexed: 06/18/2024]
Abstract
Water pollution caused by antibiotics and synthetic dyes and imminent energy crises due to limited fossil fuel resources are issues of contemporary decades. Herein, we address them by enabling the multifunctionality in dual Z-scheme MoS2/WO3-x/AgBiS2 across photolysis, photo Fenton-like, and night catalysis. Defect, basal, and facet-engineered WO3-x is modified with MoS2 and AgBiS2, which extended its photoresponse from the UV-NIR region, inhibited carrier recombination, and reduced carrier transfer resistance. The electric field rearrangement leads to a flow of electrons from MoS2 and AgBiS2 to WO3-x and intensifies the electron population, which is crucial for night catalysis. When MoS2/WO3-x/AgBiS2 was employed against doxycycline hydrochloride (DOXH), it removed 95.65, 81.11, and 77.92 % of DOXH in 100 min during photo-Fenton (PFR), night-Fenton (NFR), and photocatalytic (PCR) reactions, respectively. It also effectively removed 91.91, 98.17, 99.01, and 98.99 % of rhodamine B (RhB), Congo red (CR), methylene blue (MB), and methylene orange (MO) in Fenton reactions, respectively. ESR analysis consolidates the ROS generation feature of MoS2/WO3-x/AgBiS2 using H2O2 with and without irradiation. This work provides a strategy to eliminate the deficiencies of WO3-x and is conducive to the evolution of applications seeking to combat environmental and energy crises.
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Affiliation(s)
- Muhammad Abbas
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China
| | - Mubashar Ilyas
- Key Laboratory of Clusters Science of Ministry of Education, School of Chemistry Beijing Institute of Technology Beijing, 100081, China
| | - Kashif Hussain
- College of Physics and Optoelectronic Engineering, Shenzhen University, THz Technical Research Center of Shenzhen University, Shenzhen, China
| | - Tariq Ali
- Department of Physics, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Muhammad Afzal
- University of Agriculture Faisalabad, Sub-campus Burewala, Pakistan
| | - Nazia Batool
- School of Natural Science Department of Physics, National University of Science and Technology (NUST), Islamabad, Pakistan
| | - Navid Hussain Shah
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China
| | - Muhammad Qasim
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China
| | - Yaling Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology of China, Beijing, 100190, China
| | - Yanyan Cui
- Beijing Engineering Research Center of Mixed Reality and Advanced Display, School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China.
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6
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Kim CM, Jaffari ZH, Abbas A, Chowdhury MF, Cho KH. Machine learning analysis to interpret the effect of the photocatalytic reaction rate constant (k) of semiconductor-based photocatalysts on dye removal. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:132995. [PMID: 38039815 DOI: 10.1016/j.jhazmat.2023.132995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/02/2023] [Accepted: 11/10/2023] [Indexed: 12/03/2023]
Abstract
Photocatalytic reactions with semiconductor-based photocatalysts have been investigated extensively for application to wastewater treatment, especially dye degradation, yet the interactions between different process parameters have rarely been reported due to their complicated reaction mechanisms. Hence, this study aims to discern the impact of each factor, and each interaction between multiple factors on reaction rate constant (k) using a decision tree model. The dyes selected as target pollutants were indigo and malachite green, and 5 different semiconductor-based photocatalysts with 17 different compositions were tested, which generated 34 input features and 1527 data points. The Boruta Shapley Additive exPlanations (SHAP) feature selection for the 34 inputs found that 11 inputs were significantly important. The decision tree model exhibited for 11 input features with an R2 value of 0.94. The SHAP feature importance analysis suggested that photocatalytic experimental conditions, with an importance of 59%, was the most important input category, followed by atomic composition (39%) and physicochemical properties (2%). Additionally, the effects on k of the synergy between the metal cocatalysts and important experimental conditions were confirmed by two feature SHAP dependence plots, regardless of importance order. This work provides insight into the single and multiple factors that affect reaction rate and mechanism.
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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
| | - Zeeshan Haider Jaffari
- Department of Civil and Environmental Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Ather Abbas
- Physical Science and Engineering Division, 4700 King Abdullah University of Science and Technology, Thuwal, Mecca Province, Saudi Arabia
| | - Mir Ferdous Chowdhury
- Department of Global Smart City, Sungkyunkwan University (SKKU), 2066, Seobu-ro, Jangan-gu, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Kyung Hwa Cho
- School of Civil, Environmental, and Architectural Engineering, Korea University, Seoul 02841, Republic of Korea.
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7
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Pérez-Torres A, Hernández-Barreto DF, Bernal V, Giraldo L, Moreno-Piraján JC, da Silva EA, Alves MDCM, Morais J, Hernandez Y, Cortés MT, Macías MA. Sulfur-Doped g-C 3N 4 Heterojunctions for Efficient Visible Light Degradation of Methylene Blue. ACS OMEGA 2023; 8:47821-47834. [PMID: 38144128 PMCID: PMC10734029 DOI: 10.1021/acsomega.3c06320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/25/2023] [Accepted: 11/20/2023] [Indexed: 12/26/2023]
Abstract
The discharge of synthetic dyes from different industrial sources has become a global issue of concern. Enormous amounts are released into wastewater each year, causing concerns due to the high toxic consequences. Photocatalytic semiconductors appear as a green and sustainable form of remediation. Among them, graphitic carbon nitride (g-C3N4) has been widely studied due to its low cost and ease of fabrication. In this work, the synthesis, characterization, and photocatalytic study over methylene blue of undoped, B/S-doped, and exfoliated heterojunctions of g-C3N4 are presented. The evaluation of the photocatalytic performance showed that exfoliated undoped/S-doped heterojunctions with 25, 50, and 75 mass % of S-doped (g-C3N4) present enhanced activity with an apparent reaction rate constant (kapp) of 1.92 × 10-2 min-1 for the 75% sample. These results are supported by photoluminescence (PL) experiments showing that this heterojunction presents the less probable electron-hole recombination. UV-vis diffuse reflectance and valence band-X-ray photoelectron spectroscopy (VB-XPS) allowed the calculation of the band-gap and the valence band positions, suggesting a band structure diagram describing a type I heterojunction. The photocatalytic activities calculated demonstrate that this property is related to the surface area and porosity of the samples, the semiconductor nature of the g-C3N4 structure, and, in this case, the heterojunction that modifies the band structure. These results are of great importance considering that scarce reports are found concerning exfoliated B/S-doped heterojunctions.
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Affiliation(s)
- Andrés
F. Pérez-Torres
- Crystallography
and Chemistry of Materials, CrisQuimMat, Department of Chemistry, Universidad de los Andes, Bogotá D.C. 111711, Colombia
| | - Diego F. Hernández-Barreto
- Facultad
de Ciencias, Departamento de Química, Grupo de Investigación
en Sólidos Porosos y Calorimetría, Universidad de los Andes, Bogotá
D.C. 111711, Colombia
| | - Valentina Bernal
- Facultad
de Ciencias, Departamento de Química, Grupo de Investigación
en Sólidos Porosos y Calorimetría, Universidad de los Andes, Bogotá
D.C. 111711, Colombia
| | - Liliana Giraldo
- Facultad
de Ciencias, Departamento de Química, Grupo de Calorimetría, Universidad Nacional de Colombia, Sede Bogotá 01, Bogotá D.C. 111321, Colombia
| | - Juan Carlos Moreno-Piraján
- Facultad
de Ciencias, Departamento de Química, Grupo de Investigación
en Sólidos Porosos y Calorimetría, Universidad de los Andes, Bogotá
D.C. 111711, Colombia
| | - Edjan Alves da Silva
- Electron
Spectroscopy Lab (LEe-), Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Maria do Carmo Martins Alves
- Instituto
de Química, Universidade Federal
do Rio Grande do Sul (UFRGS), Avenida Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Jonder Morais
- Electron
Spectroscopy Lab (LEe-), Instituto de Física, Universidade Federal do Rio Grande do Sul (UFRGS), Avenida Bento Gonçalves, 9500, 91501-970 Porto Alegre, RS, Brazil
| | - Yenny Hernandez
- Department
of Physics, Universidad de los Andes, Bogotá D.C. 111711, Colombia
| | - María T. Cortés
- Departamento
de Química, Universidad de los Andes, Bogotá D.C. 111711, Colombia
| | - Mario A. Macías
- Crystallography
and Chemistry of Materials, CrisQuimMat, Department of Chemistry, Universidad de los Andes, Bogotá D.C. 111711, Colombia
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8
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Mehralipour J, Akbari H, Adibzadeh A, Akbari H. Tocilizumab degradation via photo-catalytic ozonation process from aqueous. Sci Rep 2023; 13:22402. [PMID: 38104166 PMCID: PMC10725442 DOI: 10.1038/s41598-023-49290-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/06/2023] [Indexed: 12/19/2023] Open
Abstract
Following the advent of the coronavirus pandemic, tocilizumab has emerged as a potentially efficacious therapeutic intervention. The utilization of O3-Heterogeneous photocatalytic process (O3-HPCP) as a hybrid advanced oxidation technique has been employed for the degradation of pollutants. The present study employed a solvothermal technique for the synthesis of the BiOI-MOF composite. The utilization of FTIR, FESEM, EDAX, XRD, UV-vis, BET, TEM, and XPS analysis was employed to confirm the exceptional quality of the catalyst. the study employed an experimental design, subsequently followed by the analysis of collected data in order to forecast the most favorable conditions. The purpose of this study was to investigate the impact of several factors, including reaction time (30-60 min), catalyst dose (0.25-0.5 mg/L), pH levels (4-8), ozone concentration (20-40 mMol/L), and tocilizumab concentration (10-20 mg/L), on the performance of O3-HPCP. The best model was discovered by evaluating the F-value and P-value coefficients, which were found to be 0.0001 and 347.93, respectively. In the given experimental conditions, which include a catalyst dose of 0.46 mg/L, a reaction time of 59 min, a pH of 7.0, and an ozone concentration of 32 mMol/L, the removal efficiencies were found to be 92% for tocilizumab, 79.8% for COD, and 59% for TOC. The obtained R2 value of 0.98 suggests a strong correlation between the observed data and the predicted values, indicating that the reaction rate followed first-order kinetics. The coefficient of synergy for the degradation of tocilizumab was shown to be 1.22. The catalyst exhibited satisfactory outcomes, but with a marginal reduction in efficacy of approximately 3%. The sulfate ion (SO42-) exhibited no influence on process efficiency, whereas the nitrate ion (NO3-) exerted the most significant impact among the anions. The progress of the process was impeded by organic scavengers, with methanol exhibiting the most pronounced influence and sodium azide exerting the least significant impact. The efficacy of pure BiOI and NH2-MIL125 (Ti) was diminished when employed in their pure form state. The energy consumption per unit of degradation, denoted as EEO, was determined to be 161.8 KWh/m3-order.
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Affiliation(s)
- Jamal Mehralipour
- Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hesam Akbari
- Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Amir Adibzadeh
- Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
- Department of Environmental Health Engineering, Faculty of Health, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Hamed Akbari
- Health Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran.
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9
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Wang S, Tuo B, Wang J, Mo Y. Research progress of TiO 2-based photocatalytic degradation of wastewater: bibliometric analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:125417-125438. [PMID: 38015394 DOI: 10.1007/s11356-023-31236-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/21/2023] [Indexed: 11/29/2023]
Abstract
The pollution caused by modernization and industrialization has caused serious harm to the biodiversity of the earth. TiO2-based photocatalyst has been widely studied as an effective and sustainable water environment remediation material. In this study, we analyzed the status and research trends of TiO2-based photocatalytic degradation of wastewater in depression from 2003 to 2023 to provide a reference for further research. "Doping", "Modification" and "Heterojunction" were used as keywords, and 817 related academic literatures were screened out by using Web of Science database. Through the visualization software VOSviewer and CiteSpace, the authors, institutions and literature keywords were clustered. The results show that since 2008, the annual number of published papers on TiO2-based photocatalytic degradation of wastewater has increased from 9 to 114. Among them, China has published 432 articles and made great contributions, and there are many representative research teams. Chinese universities are the main body to study TiO2-based photocatalytic degradation of wastewater, but the cooperation between universities is not as close as that abroad. This paper comprehensively analyzes the research hotspots of TiO2-based photocatalytic degradation of wastewater, such as the doping of TiO2 and the construction of different types of heterojunctions of TiO2. It is expected that these analysis results will provide new research ideas for researchers to carry out future research on related topics and let researchers know in-depth research institutions and possible collaborators to conduct academic exchanges and discussions with active institutions.
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Affiliation(s)
- Shengqing Wang
- College of Mining, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Biyang Tuo
- College of Mining, Guizhou University, Guiyang, 550025, People's Republic of China.
- National and Local Joint Laboratory for Effective Utilization of Mineral Resources in Karst Area, Guiyang, 550025, People's Republic of China.
| | - Jianli Wang
- College of Metallurgy and Material Engineering, Hunan University of Technology, Zhuzhou, 412000, People's Republic of China
| | - Yuying Mo
- College of Mining, Guizhou University, Guiyang, 550025, People's Republic of China
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10
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Li Y, Xiao L, Zheng Z, Yan J, Sun L, Huang Z, Li X. A Review on Pulsed Laser Fabrication of Nanomaterials in Liquids for (Photo)catalytic Degradation of Organic Pollutants in the Water System. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2628. [PMID: 37836269 PMCID: PMC10574106 DOI: 10.3390/nano13192628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023]
Abstract
The water pollution caused by the release of organic pollutants has attracted remarkable attention, and solutions for wastewater treatment are being developed. In particular, the photocatalytic removal of organic pollutants in water systems is a promising strategy to realize the self-cleaning of ecosystems under solar light irradiation. However, at present the semiconductor-based nanocatalysts can barely satisfy the industrial requirements because their wide bandgaps restrict the effective absorption of solar light, which needs an energy band modification to boost the visible light harvesting via surface engineering. As an innovative approach, pulsed laser heating in liquids has been utilized to fabricate the nanomaterials in catalysis; it demonstrates multi-controllable features, such as size, morphology, crystal structure, and even optical or electrical properties, with which photocatalytic performances can be precisely optimized. In this review, focusing on the powerful heating effect of pulsed laser irradiation in liquids, the functional nanomaterials fabricated by laser technology and their applications in the catalytic degradation of various organic pollutants are summarized. This review not only highlights the innovative works of pulsed laser-prepared nanomaterials for organic pollutant removal in water systems, such as the photocatalytic degradation of organic dyes and the catalytic reduction of toxic nitrophenol and nitrobenzene, it also critically discusses the specific challenges and outlooks of this field, including the weakness of the produced yields and the relevant automatic strategies for massive production.
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Affiliation(s)
- Yang Li
- College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
| | - Liangfen Xiao
- College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
| | - Zhong Zheng
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jiujiang Yan
- College of Electrical Engineering, Naval University of Engineering, Wuhan 430033, China
| | - Liang Sun
- Department of Basic Courses, Naval University of Engineering, Wuhan 430033, China
| | - Zhijie Huang
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiangyou Li
- Wuhan National Laboratory for Optoelectronics (WNLO), Huazhong University of Science and Technology, Wuhan 430074, China
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Orudzhev FF, Sobola DS, Ramazanov SM, Častková K, Selimov DA, Rabadanova AA, Shuaibov AO, Gulakhmedov RR, Abdurakhmanov MG, Giraev KM. Hydrogen Bond-Induced Activation of Photocatalytic and Piezophotocatalytic Properties in Calcium Nitrate Doped Electrospun PVDF Fibers. Polymers (Basel) 2023; 15:3252. [PMID: 37571146 PMCID: PMC10422511 DOI: 10.3390/polym15153252] [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: 06/27/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
In this study, polyvinylidene fluoride (PVDF) fibers doped with hydrated calcium nitrate were prepared using electrospinning. The samples were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), optical spectroscopy, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), Raman, and photoluminescence (PL) spectroscopy. The results are complementary and confirm the presence of chemical hydrogen bonding between the polymer and the dopant. Additionally, there was a significant increase in the proportion of the electroactive polar beta phase from 72 to 86%. It was shown that hydrogen bonds acted as a transport pathway for electron capture by the conjugated salt, leading to more than a three-fold quenching of photoluminescence. Furthermore, the optical bandgap of the composite material narrowed to the range of visible light energies. For the first time, it the addition of the salt reduced the energy of the PVDF exciton by a factor of 17.3, initiating photocatalytic activity. The calcium nitrate-doped PVDF exhibited high photocatalytic activity in the degradation of methylene blue (MB) under both UV and visible light (89 and 44%, respectively). The reaction rate increased by a factor of 2.4 under UV and 3.3 under visible light during piezophotocatalysis. The catalysis experiments proved the efficiency of the membrane design and mechanisms of catalysis are suggested. This study offers insight into the nature of chemical bonds in piezopolymer composites and potential opportunities for their use.
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Affiliation(s)
- F. F. Orudzhev
- Smart Materials Laboratory, Dagestan State University, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia
| | - D. S. Sobola
- Central European Institute of Technology BUT, Purkyňova 656/123, 61200 Brno, Czech Republic
- Department of Physics, Faculty of Electrical Engineering and Communication, Brno University of Technology, Technická 2848/8, 61600 Brno, Czech Republic
| | - Sh. M. Ramazanov
- Amirkhanov Institute of Physics, Dagestan Federal Research Center, Russian Academy of Sciences, 367003 Makhachkala, Russia
| | - K. Častková
- Central European Institute of Technology BUT, Purkyňova 656/123, 61200 Brno, Czech Republic
| | - D. A. Selimov
- Smart Materials Laboratory, Dagestan State University, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia
| | - A. A. Rabadanova
- Smart Materials Laboratory, Dagestan State University, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia
| | - A. O. Shuaibov
- Smart Materials Laboratory, Dagestan State University, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia
| | - R. R. Gulakhmedov
- Smart Materials Laboratory, Dagestan State University, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia
| | - M. G. Abdurakhmanov
- Smart Materials Laboratory, Dagestan State University, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia
| | - K. M. Giraev
- Smart Materials Laboratory, Dagestan State University, St. M. Gadjieva 43-a, 367015 Makhachkala, Russia
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Geldasa FT, Kebede MA, Shura MW, Hone FG. Experimental and computational study of metal oxide nanoparticles for the photocatalytic degradation of organic pollutants: a review. RSC Adv 2023; 13:18404-18442. [PMID: 37342807 PMCID: PMC10278095 DOI: 10.1039/d3ra01505j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023] Open
Abstract
Photocatalysis is a more proficient technique that involves the breakdown or decomposition of different organic contaminants, various dyes, and harmful viruses and fungi using UV or visible light solar spectrum. Metal oxides are considered promising candidate photocatalysts owing to their low cost, efficiency, simple fabricating method, sufficient availability, and environment-friendliness for photocatalytic applications. Among metal oxides, TiO2 is the most studied photocatalyst and is highly applied in wastewater treatment and hydrogen production. However, TiO2 is relatively active only under ultraviolet light due to its wide bandgap, which limits its applicability because the production of ultraviolet is expensive. At present, the discovery of a photocatalyst of suitable bandgap with visible light or modification of the existing photocatalyst is becoming very attractive for photocatalysis technology. However, the major drawbacks of photocatalysts are the high recombination rate of photogenerated electron-hole pairs, the ultraviolet light activity limitations, and low surface coverage. In this review, the most commonly used synthesis method for metal oxide nanoparticles, photocatalytic applications of metal oxides, and applications and toxicity of different dyes are comprehensively highlighted. In addition, the challenges in the photocatalytic applications of metal oxides, strategies to suppress these challenges, and metal oxide studied by density functional theory for photocatalytic applications are described in detail.
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Affiliation(s)
- Fikadu Takele Geldasa
- Adama Science and Technology University, Department of Applied Physics P. O. Box1888 Adama Ethiopia
- Oda Bultum University, Department of Physics P. O. Box 226, Chiro Ethiopia
| | - Mesfin Abayneh Kebede
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa Florida Science Campus Johannesburg 1710 South Africa
| | - Megersa Wodajo Shura
- Adama Science and Technology University, Department of Applied Physics P. O. Box1888 Adama Ethiopia
| | - Fekadu Gashaw Hone
- Addis Ababa University, Department of Physics P.O. Box: 1176 Addis Ababa Ethiopia
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Zhang Y, Zhang X, Wang S. Recent advances in the removal of emerging contaminants from water by novel molecularly imprinted materials in advanced oxidation processes-A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 883:163702. [PMID: 37105485 DOI: 10.1016/j.scitotenv.2023.163702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/31/2023] [Accepted: 04/19/2023] [Indexed: 05/05/2023]
Abstract
Recently, there has been a global focus on effectively treating emerging contaminants (ECs) in water bodies. Advanced oxidation processes (AOPs) are the primary technology used for ECs removal. However, the low concentrations of ECs make it difficult to overcome the interference of background substances in complex water quality, which limits the practical application of AOPs. To address this limitation, many researchers are developing new catalysts with preferential adsorption. Molecular imprinting technology (MIT) combined with conventional catalysts has been found to effectively enhance the selectivity of catalysts for the targeted catalytic degradation of pollutants. This review presents a comprehensive summary of the progress made in research on molecularly imprinted polymers (MIPs) in the selective oxidation of ECs in water. The preparation methods, principles, and control points of novel MIP catalysts are discussed. Furthermore, the performance and mechanism of the catalysts in photocatalytic oxidation, electrocatalytic oxidation, and persulfate activation are analyzed with examples. The possible ecotoxicological risks of MIP catalysts are also discussed. Finally, the challenges and prospects of applying MIP catalysts in AOP are presented along with proposed solutions. This review provides a better understanding of using MIP catalysts in AOPs to target the degradation of ECs.
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Affiliation(s)
- Yang Zhang
- School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
| | - Xiaodong Zhang
- School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China.
| | - Shuguang Wang
- School of Environmental Science and Engineering, Shandong University, Qingdao 266237, PR China
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Harun-Ur-Rashid M, Pal K, Imran AB. Hybrid Nanocomposite Fabrication of Nanocatalyst with Enhanced and Stable Photocatalytic Activity. Top Catal 2023. [DOI: 10.1007/s11244-023-01809-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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Guo J, Liu H, Li Y, Li D, He D. Recent advances on catalysts for photocatalytic selective hydrogenation of nitrobenzene to aniline. Front Chem 2023; 11:1162183. [PMID: 36970401 PMCID: PMC10036363 DOI: 10.3389/fchem.2023.1162183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 02/27/2023] [Indexed: 03/12/2023] Open
Abstract
Selective hydrogenation of nitrobenzene (SHN) is an important approach to synthesize aniline, an essential intermediate with extremely high research significance and value in the fields of textiles, pharmaceuticals and dyes. SHN reaction requires high temperature and high hydrogen pressure via the conventional thermal-driven catalytic process. On the contrary, photocatalysis provides an avenue to achieve high nitrobenzene conversion and high selectivity towards aniline at room temperature and low hydrogen pressure, which is in line with the sustainable development strategies. Designing efficient photocatalysts is a crucial step in SHN. Up to now, several photocatalysts have been explored for photocatalytic SHN, such as TiO2, CdS, Cu/graphene and Eosin Y. In this review, we divide the photocatalysts into three categories based on the characteristics of the light harvesting units, including semiconductors, plasmonic metal-based catalysts and dyes. The recent progress of the three categories of photocatalysts is summarized, the challenges and opportunities are pointed out and the future development prospects are described. It aims to give a clear picture to the catalysis community and stimulate more efforts in this research area.
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Affiliation(s)
- Jiawen Guo
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, China
| | - Huimin Liu
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, China
| | - Yuqiao Li
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, China
| | - Dezheng Li
- School of Chemical and Environmental Engineering, Liaoning University of Technology, Jinzhou, China
| | - Dehua He
- Innovative Catalysis Program, Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, China
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