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Kim Y, Seo JW, Lee IH, Kim JY. Investigating the Influence of PbS Quantum Dot-Decorated TiO 2 Photoanode Thickness on Photoelectrochemical Hydrogen Production Performance. MATERIALS (BASEL, SWITZERLAND) 2023; 17:225. [PMID: 38204078 PMCID: PMC10779549 DOI: 10.3390/ma17010225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 12/26/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024]
Abstract
To maximize the photoelectrochemical (PEC) hydrogen production performance of quantum dot (QD)-decorated photoelectrodes, it is crucial to prioritize the optimization of electrode's structure, including thickness and porosity. In this study, we prepare PbS QD-decorated mesoporous TiO2 photoanodes for PEC hydrogen production, and systematically investigate the influence of the photoanode thickness on optical properties and PEC performances. As the thickness of photoanodes increases from 6.4 µm to 16.3 µm, the light absorption capability is enhanced across the entire visible and near-infrared (IR) spectrum due to the improved loading of PbS QDs. However, the photocurrent density is optimized for the 11.9 µm thick photoanode (15.19 mA/cm2), compared to the 6.4 µm thick (10.80 mA/cm2) and 16.3 µm thick photoanodes (11.93 mA/cm2). This optimization is attributed to the trade-off between the light absorption capability and the efficient mass transfer of the electrolyte as the photoanode thickness increases, which is confirmed by the lowest charge transfer resistance (Rct) evaluated from the electrochemical impedance data.
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Affiliation(s)
| | | | | | - Jae-Yup Kim
- Department of Chemical Engineering, Dankook University, Yongin 16890, Republic of Korea; (Y.K.); (J.-W.S.); (I.-H.L.)
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2
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Rodríguez SO, Coy-Aceves LE, Morales JED, Sanchez-Salas JL, Martínez-Huitle CA, Ramirez-Rodrigues MM, Cerro-Lopez M. Ketorolac removal through photoelectrocatalysis using TiO 2 nanotubes in water system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:118536-118544. [PMID: 37917255 DOI: 10.1007/s11356-023-30510-y] [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: 05/11/2023] [Accepted: 10/12/2023] [Indexed: 11/04/2023]
Abstract
Ketorolac, a highly persistent NSAID of environmental concern, was significantly removed from water (80% removal) through photoelectrocatalysis where titanium dioxide nanotubes prepared by Ti foil electrochemical anodization at 30 V were used as photoanodes. Fifteen milligrams per liter of ketorolac solutions in a 0.05 M Na2SO4 aqueous medium was subjected to irradiation from a 365-nm light with an intensity of 1 mWcm-2 and under an applied potential of 1.3 V (vs. Hg/Hg2SO4/sat.K2SO4) at pH 6.0. When each process (photo and electrocatalysis) was carried out separately, less than 20% drug removal was achieved as monitored through UV-vis spectrophotometry. Through scavenging experiments, direct oxidation on the photogenerated holes and oxidation by hydroxyl radical formation were found to play a key role on ketorolac's degradation. Chemical oxygen demand (COD) analyses also showed a significant COD decreased (68%) since the initial COD value was 31.3 mg O2/L and the final COD value was 10.1 mg O2/L. A 48% mineralization was also achieved, as shown by total organic carbon (TOC) analyses. These results showed that electrodes based on titania nanotubes are a promising alternative material for simultaneous photocatalytic and electrocatalytic processes in water remediation.
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Affiliation(s)
- Sebastián Oyarzabal Rodríguez
- Electrocatalysis Laboratory, Chemical and Biological Sciences Department, Universidad de Las Américas Puebla, Sta. Catarina Mártir S/N, Cholula, 72810, Puebla, Mexico
| | - Luis Erick Coy-Aceves
- Electrocatalysis Laboratory, Chemical and Biological Sciences Department, Universidad de Las Américas Puebla, Sta. Catarina Mártir S/N, Cholula, 72810, Puebla, Mexico
| | - Jesus Eduardo Daniel Morales
- Electrocatalysis Laboratory, Chemical and Biological Sciences Department, Universidad de Las Américas Puebla, Sta. Catarina Mártir S/N, Cholula, 72810, Puebla, Mexico
| | - Jose Luis Sanchez-Salas
- Electrocatalysis Laboratory, Chemical and Biological Sciences Department, Universidad de Las Américas Puebla, Sta. Catarina Mártir S/N, Cholula, 72810, Puebla, Mexico
| | - Carlos Alberto Martínez-Huitle
- Renewable Energies and Environmental Sustainability Research Group, Institute of Chemistry, Universidade Federale Do Río Grande Do Norte, Campus Universitário, Av. Salgado Filho 3000, Lagoa Nova, Natal, RN, 59056-400, Brazil
| | - Milena Maria Ramirez-Rodrigues
- Department of Bioengineering, Tecnologico de Monterrey, Reserva Territorial Atlixcáyotl, Vía Atlixcáyotl 5718Puebla, 72453, Puebla, Mexico
| | - Monica Cerro-Lopez
- Electrocatalysis Laboratory, Chemical and Biological Sciences Department, Universidad de Las Américas Puebla, Sta. Catarina Mártir S/N, Cholula, 72810, Puebla, Mexico.
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3
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Pezhooli N, Rahimi J, Hasti F, Maleki A. Synthesis and evaluation of composite TiO 2@ZnO quantum dots on hybrid nanostructure perovskite solar cell. Sci Rep 2022; 12:9885. [PMID: 35701463 PMCID: PMC9198030 DOI: 10.1038/s41598-022-13903-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 05/30/2022] [Indexed: 11/09/2022] Open
Abstract
This research is an interdisciplinary study aimed at helping the environment and producing clean energy. Therefore, one of the goals of this research towards the field of nanotechnology is the application of nanotechnology in the preparation of solar cells and the provision of optimal and efficient cells. Perovskite solar cells are of particular importance because of the high efficiencies that they have achieved in recent years. The use of quantum dots has also played an important role in the efficiency of these cells and their efficiency. The TiO2@ZnO nanocomposite was selected and synthesized for this study. The application of this nanocomposite with different ratios of TiO2 and ZnO quantum dots was investigated and their efficiency was determined. Although the efficiency of the fabricated cell was reported to be about 5% in a solar cell made of TiO2@ZnO composite, the efficiency can be increased by optimizing conditions such as the optimal location for these cells or by compositing with other materials.
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Affiliation(s)
- Negin Pezhooli
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Jamal Rahimi
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran
| | - Farzam Hasti
- Department of Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
| | - Ali Maleki
- Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran, 16846-13114, Iran.
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4
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Photodegradation of Anti-Inflammatory Drugs: Stability Tests and Lipid Nanocarriers for Their Photoprotection. Molecules 2021; 26:molecules26195989. [PMID: 34641532 PMCID: PMC8512772 DOI: 10.3390/molecules26195989] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 12/21/2022] Open
Abstract
The present paper provides an updated overview of the methodologies applied in photodegradation studies of non-steroidal anti-inflammatory drugs. Photostability tests, performed according to international standards, have clearly demonstrated the photolability of many drugs belonging to this class, observed during the preparation of commercial forms, administration or when dispersed in the environment. The photodegradation profile of these drugs is usually monitored by spectrophotometric or chromatographic techniques and in many studies the analytical data are processed by chemometric procedures. The application of multivariate analysis in the resolution of often-complex data sets makes it possible to estimate the pure spectra of the species involved in the degradation process and their concentration profiles. Given the wide use of these drugs, several pharmaceutical formulations have been investigated to improve their photostability in solution or gel, as well as the pharmacokinetic profile. The use of lipid nanocarriers as liposomes, niosomes or solid lipid nanoparticles has demonstrated to both minimize photodegradation and improve the controlled release of the entrapped drugs.
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Neha R, Adithya S, Jayaraman RS, Gopinath KP, M P, L P, Arun J. Nano-adsorbents an effective candidate for removal of toxic pharmaceutical compounds from aqueous environment: A critical review on emerging trends. CHEMOSPHERE 2021; 272:129852. [PMID: 33581563 DOI: 10.1016/j.chemosphere.2021.129852] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/25/2021] [Accepted: 01/30/2021] [Indexed: 05/12/2023]
Abstract
Advancements in medical research has resulted in the modernization of healthcare facilities, subsequently leading to a higher level of production and usage of pharmaceuticals to sustain better quality of life. Pharmaceutical active compounds (PhACs) possess high genotoxicity and eco-toxicity thus presenting numerous side effects to living beings on long-term exposure. The fate and toxicity of PhACs were explored in detail, aiming to elucidate their occurrence and transmission in wastewater treatment systems (WWTPs). Adsorption of pharmaceutical compounds using Nano-adsorbents has gained momentum in recent years owing to their low-cost, high surface area and effectiveness. This review has been conducted in order to widen the utilization of Nano adsorbents in the adsorption of pharmaceutical compounds with a focus on the aqueous environment. The synthesis routes and properties of Nano-adsorbents for removal of PhACs were assessed in a comprehensive way. The recovery and reuse ability of nano-adsorbents also forms an integral part of its application in the removal of PhACs and has hence been delineated.
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Affiliation(s)
- Rajendran Neha
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Srikanth Adithya
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Ramesh Sai Jayaraman
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Kannappan Panchamoorthy Gopinath
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, 603110, Tamil Nadu, India
| | - Pandimadevi M
- Department of Biotechnology, School of Bioengineering, SRM-Institute of Science and Technology, Kattankulathur, 603 203, Tamil Nadu, India
| | - Praburaman L
- School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan, China
| | - Jayaseelan Arun
- Centre for Waste Management, International Research Centre, Sathyabama Institute of Science and Technology, Jeppiaar Nagar (OMR), Chennai, 600119, Tamil Nadu, India.
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Kaur R, Kaur A, Kaur R, Singh S, Bhatti MS, Umar A, Baskoutas S, Kansal SK. Cu-BTC metal organic framework (MOF) derived Cu-doped TiO2 nanoparticles and their use as visible light active photocatalyst for the decomposition of ofloxacin (OFX) antibiotic and antibacterial activity. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.02.037] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Jyotsna, Kaur A, Kansal SK, Umar A. β-AgVO3 nanowires/TiO2 nanoparticles heterojunction assembly with improved visible light driven photocatalytic decomposition of hazardous pollutants and mechanism insight. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117271] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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8
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Hooshmand S, Kargozar S, Ghorbani A, Darroudi M, Keshavarz M, Baino F, Kim HW. Biomedical Waste Management by Using Nanophotocatalysts: The Need for New Options. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3511. [PMID: 32784877 PMCID: PMC7476041 DOI: 10.3390/ma13163511] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 12/15/2022]
Abstract
Biomedical waste management is getting significant consideration among treatment technologies, since insufficient management can cause danger to medicinal service specialists, patients, and their environmental conditions. The improvement of waste administration protocols, plans, and policies are surveyed, despite setting up training programs on legitimate waste administration for all healthcare service staff. Most biomedical waste substances do not degrade in the environment, and may also not be thoroughly removed through treatment processes. Therefore, the long-lasting persistence of biomedical waste can effectively have adverse impact on wildlife and human beings, as well. Hence, photocatalysis is gaining increasing attention for eradication of pollutants and for improving the safety and clearness of the environment due to its great potential as a green and eco-friendly process. In this regard, nanostructured photocatalysts, in contrast to their regular counterparts, exhibit significant attributes such as non-toxicity, low cost and higher absorption efficiency in a wider range of the solar spectrum, making them the best candidate to employ for photodegradation. Due to these unique properties of nanophotocatalysts for biomedical waste management, we aim to critically evaluate various aspects of these materials in the present review and highlight their importance in healthcare service settings.
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Affiliation(s)
- Sara Hooshmand
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran; (S.H.); (A.G.)
| | - Saeid Kargozar
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran
| | - Ahmad Ghorbani
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran; (S.H.); (A.G.)
| | - Majid Darroudi
- Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad 917794-8564, Iran;
| | - Meysam Keshavarz
- Hamlyn Centre, Imperial College London, Bessemer Building, South Kensington Campus, Exhibition Road, Kensington, London SW7 2AZ, UK;
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea;
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan 31116, Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan 31116, Korea
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9
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Bi 2WO 6/C-Dots/TiO 2: A Novel Z-Scheme Photocatalyst for the Degradation of Fluoroquinolone Levofloxacin from Aqueous Medium. NANOMATERIALS 2020; 10:nano10050910. [PMID: 32397293 PMCID: PMC7279409 DOI: 10.3390/nano10050910] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 11/18/2022]
Abstract
Photocatalytic materials and semiconductors of appropriate structural and morphological architectures as well as energy band gaps are materials needed for mitigating current environmental problems, as these materials have the ability to exploit the full spectrum of solar light in several applications. Thus, constructing a Z-scheme heterojunction is an ideal approach to overcoming the limitations of a single component or traditional heterogeneous catalysts for the competent removal of organic chemicals present in wastewater, to mention just one of the areas of application. A Z-scheme catalyst possesses many attributes, including enhanced light-harvesting capacity, strong redox ability and different oxidation and reduction positions. In the present work, a novel ternary Z-scheme photocatalyst, i.e., Bi2WO6/C-dots/TiO2, has been prepared by a facile chemical wet technique. The prepared solar light-driven Z-scheme composite was characterized by many analytical and spectroscopic practices, including powder X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), N2 adsorption–desorption isotherm, Fourier-transform infrared spectroscopy (FT-IR), photoluminescence (PL) and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalytic activity of the Bi2WO6/C-dots/TiO2 composite was evaluated by studying the degradation of fluoroquinolone drug, levofloxacin under solar light irradiation. Almost complete (99%) decomposition of the levofloxacin drug was observed in 90 min of sunlight irradiation. The effect of catalyst loading, initial substrate concentration and pH of the reaction was also optimized. The photocatalytic activity of the prepared catalyst was also compared with that of bare Bi2WO6, TiO2 and TiO2/C-dots under optimized conditions. Scavenger radical trap studies and terephthalic acid (TPA) fluorescence technique were done to understand the role of the photo-induced active radical ions that witnessed the decomposition of levofloxacin. Based on these studies, the plausible degradation trail of levofloxacin was proposed and was further supported by LC-MS analysis.
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10
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Photocatalytic degradation of ibuprofen and naproxen in water over NS-TiO2 coating on polycarbonate: Process modeling and intermediates identification. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107888] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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11
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Husein DZ, Hassanien R, Al-Hakkani MF. Green-synthesized copper nano-adsorbent for the removal of pharmaceutical pollutants from real wastewater samples. Heliyon 2019; 5:e02339. [PMID: 31485528 PMCID: PMC6716349 DOI: 10.1016/j.heliyon.2019.e02339] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 06/04/2019] [Accepted: 08/15/2019] [Indexed: 11/26/2022] Open
Abstract
The release of Non-Steroidal Anti-Inflammatory drugs (NSAIDs) such as Ibuprofen (Ibu), Naproxen (Nab) and Diclofenac (Dic) to the aquatic system cause serious environmental problems. In this study, green-synthesized copper nanoparticles (Cu NPs) have been used as nano-adsorbent for the removal of Ibu, Nab, and Dic from wastewater samples. Formation of Cu NPs was confirmed by different analytical techniques. The adsorption parameters such as temperature, pH, adsorbate concentration, adsorbent dose and contact time were studied. The best removal results were obtained at these conditions: temperature 298 K, pH = 4.5, 10.0 mg Cu NPs, 60 min. At these conditions, the removal percentage of Ibu, Nap, and Dic were found to be 74.4, 86.9 and 91.4% respectively. The maximum monolayer adsorption capacities were calculated as 36.0, 33.9 and 33.9 mg/g for Dic, Nap, and Ibu respectively. The kinetic studies conducted that the sorption process obeyed the second order kinetic model, while the thermodynamic results revealed that the adsorption process was spontaneous, endothermic (+23.8, +40.8 and +38.3 kJ/mol for Ibu, Nap and Dic respectively). The results revealed that green-synthesized copper nano-adsorbent may be used for the removal of the anti-inflammatory drugs from real wastewater efficiently.
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Affiliation(s)
- Dalal Z Husein
- Chemistry Department, Faculty of Science, New Valley University, El-Kharga, 72511, Egypt
| | - Reda Hassanien
- Chemistry Department, Faculty of Science, New Valley University, El-Kharga, 72511, Egypt
| | - Mostafa F Al-Hakkani
- Chemistry Department, Faculty of Science, New Valley University, El-Kharga, 72511, Egypt
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12
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Sharma S, Mehta S, Ibhadon A, Kansal S. Fabrication of novel carbon quantum dots modified bismuth oxide (α-Bi2O3/C-dots): Material properties and catalytic applications. J Colloid Interface Sci 2019; 533:227-237. [DOI: 10.1016/j.jcis.2018.08.056] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 08/17/2018] [Accepted: 08/20/2018] [Indexed: 01/09/2023]
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13
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Bajorowicz B, Kobylański MP, Gołąbiewska A, Nadolna J, Zaleska-Medynska A, Malankowska A. Quantum dot-decorated semiconductor micro- and nanoparticles: A review of their synthesis, characterization and application in photocatalysis. Adv Colloid Interface Sci 2018; 256:352-372. [PMID: 29544654 DOI: 10.1016/j.cis.2018.02.003] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 02/14/2018] [Accepted: 02/14/2018] [Indexed: 12/28/2022]
Abstract
Quantum dot (QD)-decorated semiconductor micro- and nanoparticles are a new class of functional nanomaterials that have attracted considerable interest for their unique structural, optical and electronic properties that result from the large surface-to-volume ratio and the quantum confinement effect. In addition, because of QDs' excellent light-harvesting capacity, unique photoinduced electron transfer, and up-conversion behaviour, semiconductor nanoparticles decorated with quantum dots have been used widely in photocatalytic applications for the degradation of organic pollutants in both the gas and aqueous phases. This review is a comprehensive overview of the recent progress in synthesis methods for quantum dots and quantum dot-decorated semiconductor composites with an emphasis on their composition, morphology and optical behaviour. Furthermore, various approaches used for the preparation of QD-based composites are discussed in detail with respect to visible and UV light-induced photoactivity. Finally, an outlook on future development is proposed with the goal of overcoming challenges and stimulating further research into this promising field.
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Affiliation(s)
- Beata Bajorowicz
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Marek P Kobylański
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Anna Gołąbiewska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Joanna Nadolna
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Adriana Zaleska-Medynska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland
| | - Anna Malankowska
- Department of Environmental Technology, Faculty of Chemistry, University of Gdansk, 80-308 Gdansk, Poland.
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14
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Kaur A, Umar A, Anderson WA, Kansal SK. Facile synthesis of CdS/TiO2 nanocomposite and their catalytic activity for ofloxacin degradation under visible illumination. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.04.021] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Li X, Yu J, Li G, Liu H, Wang A, Yang L, Zhou W, Chu B, Liu S. TiO 2 nanodots anchored on nitrogen-doped carbon nanotubes encapsulated cobalt nanoparticles as photocatalysts with photo-enhanced catalytic activity towards the pollutant removal. J Colloid Interface Sci 2018; 526:158-166. [PMID: 29729967 DOI: 10.1016/j.jcis.2018.04.102] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 04/23/2018] [Accepted: 04/26/2018] [Indexed: 01/24/2023]
Abstract
Constructing hierarchical structure is an effective approach to improve the activities of catalysts. Herein, a novel hierarchical structure of TiO2 nanodots anchored on N-doped carbon nanotubes encapsulated Co nanoparticles (TiO2/Co@NCT) was synthesized by a simple pyrolysis method. Their catalytic performances were examined in the oxidative and light-assisted degradation of recalcitrant pollutants in the presence of the peroxymonosulfate (PMS). The Orange II removal efficiency within 15 min reached about 98.48% in TiO2/Co@NCT/PMS system. In this system, Co0 is used to react with PMS to generate free radicals for the degradation of dyes. The carbon shell benefits the adsorption of dyes and prevents the catalysts from dissolving in the solution. Besides, under light irradiation, TiO2 nanodots can be excited to generate photo-induced electrons, which can reduce inner Co2+ to Co0 in the degradation process, thus TiO2/Co@NCT exhabited high activity and outstanding stability in degradation process. The as-prepared TiO2/Co@NCT catalyst showed efficient degradation and superior stability, which would make it a great promise in practical applications for sewage treatment.
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Affiliation(s)
- Xiao Li
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Jiayuan Yu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, PR China
| | - Guixiang Li
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Hui Liu
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, PR China
| | - Aili Wang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China; School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, PR China
| | - Linjing Yang
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China
| | - Weijia Zhou
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Key Laboratory for Surface Chemistry of Energy Materials, New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, PR China.
| | - Benli Chu
- School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou Higher Education Mega Center, Guangzhou, Guangdong 510006, PR China
| | - Shengwei Liu
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510006, PR China.
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16
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Sun Y, Shao C, Li X, Guo X, Zhou X, Li X, Liu Y. Hierarchical heterostructures of p-type bismuth oxychloride nanosheets on n-type zinc ferrite electrospun nanofibers with enhanced visible-light photocatalytic activities and magnetic separation properties. J Colloid Interface Sci 2018; 516:110-120. [DOI: 10.1016/j.jcis.2018.01.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/05/2018] [Accepted: 01/08/2018] [Indexed: 11/29/2022]
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17
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Kathiravan V. Green synthesis of silver nanoparticles using different volumes of Trichodesma indicum leaf extract and their antibacterial and photocatalytic activities. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3405-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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18
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Sharma S, Umar A, Mehta SK, Ibhadon AO, Kansal SK. Solar light driven photocatalytic degradation of levofloxacin using TiO2/carbon-dot nanocomposites. NEW J CHEM 2018. [DOI: 10.1039/c7nj05118b] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports the synthesis of TiO2 quantum dots, carbon dots (C-dots), and TiO2/C-dots using facile sol–gel and hydrothermal methods.
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Affiliation(s)
- Shelja Sharma
- Department of Chemistry and Centre of Advanced Studies
- Panjab University
- Chandigarh-160014
- India
| | - Ahmad Umar
- Department of Chemistry
- College of Science and Arts
- Najran University
- P. O. Box-1988
- Najran-11001
| | - Surinder Kumar Mehta
- Department of Chemistry and Centre of Advanced Studies
- Panjab University
- Chandigarh-160014
- India
| | - Alex O. Ibhadon
- Department of Chemical Engineering, University of Hull
- Hull
- UK
| | - Sushil Kumar Kansal
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering and Technology
- Panjab University
- Chandigarh-160014
- India
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19
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Verma P, Samanta SK. Facile synthesis of TiO2–PC composites for enhanced photocatalytic abatement of multiple pollutant dye mixtures: a comprehensive study on the kinetics, mechanism, and effects of environmental factors. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3209-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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20
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Deng X, Ma Q, Cui Y, Zhang H, Cheng X, Li X, Xie M, Cheng Q, Li B. Microwave-assisted synthesis of Ag 2 O/reduced TiO 2 nano-tube arrays photoelectrode with enhanced visible photocatalytic activity for degradation of organic pollutants. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2017.03.060] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Verma P, Samanta SK. Degradation kinetics of pollutants present in a simulated wastewater matrix using UV/TiO2 photocatalysis and its microbiological toxicity assessment. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2992-6] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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22
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Ahmed MJ. Adsorption of non-steroidal anti-inflammatory drugs from aqueous solution using activated carbons: Review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 190:274-282. [PMID: 28063293 DOI: 10.1016/j.jenvman.2016.12.073] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 12/21/2016] [Accepted: 12/29/2016] [Indexed: 06/06/2023]
Abstract
Pharmaceutical pollutants are of significant effect on the environment, so that their treatments have been addressed in many studies. Activated carbon (AC) adsorbent shows best attraction for these compounds due to its unique characteristics represented by high capacity and porosity. In this article, the adsorption performance of AC towards non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen, ketoprofen, naproxen, and diclofenac were reviewed. According to collected data, maximum adsorption capacities of 417, 25, 290, and 372 mg/g were obtained from Langmuir isotherm for these drugs, respectively. The values of 1/n for Freundlich isotherm were lower than unity for all studied drugs, confirming the nonlinear and favorable adsorption. In addition, kinetics data were well represented by the pseudo-second-order model and mechanism was not controlled by the pore diffusion step alone. AC adsorption demonstrated superior performance for all selected NSAIDs, thus being efficient technology for treatment of these pharmaceutical pollutants.
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Affiliation(s)
- Muthanna J Ahmed
- Department of Chemical Engineering, University of Baghdad, P.O. Box 47024, Aljadria, Baghdad, Iraq.
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23
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Lv D, Zhang D, Pu X, Kong D, Lu Z, Shao X, Ma H, Dou J. One-pot combustion synthesis of BiVO4/BiOCl composites with enhanced visible-light photocatalytic properties. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.10.010] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Kaur A, Salunke DB, Umar A, Mehta SK, Sinha ASK, Kansal SK. Visible light driven photocatalytic degradation of fluoroquinolone levofloxacin drug using Ag2O/TiO2 quantum dots: a mechanistic study and degradation pathway. NEW J CHEM 2017. [DOI: 10.1039/c7nj02053h] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ag2O/TiO2 QDs exhibited a photocatalytic activity of 81% for the degradation of levofloxacin under visible light, which is higher than those of commercially available catalysts.
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Affiliation(s)
- Amandeep Kaur
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology
- Panjab University
- Chandigarh-160014
- India
| | | | - Ahmad Umar
- Department of Chemistry
- Faculty of Science and Arts and Promising Centre for Sensors and Electronic Devices (PCSED)
- Najran University
- Najran-11001
- Kingdom of Saudi Arabia
| | | | - A. S. K. Sinha
- Department of Chemical Engineering and Technology
- Indian Institute of Technology (Banaras Hindu University)
- Varanasi 221005
- India
| | - Sushil Kumar Kansal
- Dr. S. S. Bhatnagar University Institute of Chemical Engineering & Technology
- Panjab University
- Chandigarh-160014
- India
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25
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Sharma P, Rana DS, Umar A, Kumar R, Chauhan MS, Chauhan S. Hexagonal cadmium oxide nanodisks: Efficient scaffold for cyanide ion sensing and photo-catalytic applications. Talanta 2016; 153:57-65. [DOI: 10.1016/j.talanta.2016.02.048] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 02/19/2016] [Accepted: 02/20/2016] [Indexed: 10/22/2022]
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26
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Petrella A, Mascolo G, Murgolo S, Petruzzelli V, Ranieri E, Spasiano D, Petruzzelli D. Photocatalytic Oxidation of Organic Micro-Pollutants: Pilot Plant Investigation and Mechanistic Aspects of the Degradation Reaction. CHEM ENG COMMUN 2016. [DOI: 10.1080/00986445.2016.1188292] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Andrea Petrella
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e Chimica, Politecnico di Bari, Bari, Italy
| | - Giuseppe Mascolo
- Laboratorio di Chimica e Tecnologia delle Acque, IRSA, Consiglio Nazionale delle Ricerche, Bari, Italy
| | - Sapia Murgolo
- Laboratorio di Chimica e Tecnologia delle Acque, IRSA, Consiglio Nazionale delle Ricerche, Bari, Italy
| | - Valentina Petruzzelli
- Centro Interdipartimentale di Ricerca Industriale su Edilizia e Costruzioni, Bologna, Italy
| | - Ezio Ranieri
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e Chimica, Politecnico di Bari, Bari, Italy
| | - Danilo Spasiano
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e Chimica, Politecnico di Bari, Bari, Italy
| | - Domenico Petruzzelli
- Dipartimento di Ingegneria Civile, Ambientale, del Territorio, Edile e Chimica, Politecnico di Bari, Bari, Italy
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27
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Zhang X, Zhang Y, Liu D, Feng J, Zhou L, Yang Y, Guo X, Li X. Enhanced visible-light-induced photocatalytic activity of anatase TiO2 nanocrystallite derived from CMK-3 and tetrakis(dimethylamino)titanium. RSC Adv 2016. [DOI: 10.1039/c6ra02655a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Anatase TiO2 nanocrystallite enriched in oxygen vacancies and traces of N-dopants has been synthesized from CMK-3 and tetrakis(dimethylamino)titanium.
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Affiliation(s)
- Xiaoyin Zhang
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
- University of Chinese Academy of Sciences
| | - Ye Zhang
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Dawei Liu
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
- University of Chinese Academy of Sciences
| | - Junpeng Feng
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
- University of Chinese Academy of Sciences
| | - Ligong Zhou
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Ying Yang
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Xiangyun Guo
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
| | - Xuekuan Li
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- PR China
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