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Singh R, Širić I, Alhag SK, Al-Shuraym LA, Al-Shahari EA, Alsudays IM, Bachheti A, Goala M, Abou Fayssal S, Kumar P, Eid EM. Impact of titanium dioxide (TiO 2) nanoparticle and liquid leachate of mushroom compost on agronomic and biochemical response of marigold (Tagetes erecta L.) under saline stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33999-z. [PMID: 38907815 DOI: 10.1007/s11356-024-33999-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 06/11/2024] [Indexed: 06/24/2024]
Abstract
The cultivation of ornamental horticultural crops under salinity stress has been a challenge for growers all over the world. In this study, an attempt was made for pot cultivation of Marigold (Tagetes erecta L. var. Pusa Basanti Gainda) in salt-stressed (SS) soil (150 mM) with the combined use of mushroom compost leachate (CL) and foliar application of titanium dioxide nanoparticles (TiO2-NPs). For this purpose, a total of six pot treatments, i.e., borewell water (BW; control), T1 (BW with SS), T2 (BW with SS and TiO2-NPs), T3 (CL supplemented), T4 (CL with SS), and T5 (CL with SS and TiO2-NPs) were conducted in triplicate. The results of this study showed that CL supplementation significantly (p < 0.05) improved the physicochemical i.e., pH (14.5%), electrical conductivity (32.9%), total nitrogen (27.4%), total phosphorus (247.6%)), and nutrient (organic matter: 119.6%) profiles of soil which later helped in higher growth (30-35%) and yield (5.4-40.7%) of T. erecta. In CL-based treatments, the biochemical constituents were significantly (p < 0.05) higher than those in BW-irrigated ones. Also, the levels of selected stress defense enzymes were significantly increased under SS treatment but reduced under TiO2-NP application. Overall, it was observed that the combined application of CL and TiO2-NPs (T5 treatment) was the most helpful treatment for enhanced germination, growth, yield, biochemical parameters, and better plant enzymatic activities to cope with saline stress. This study provides a mechanistic understanding of T. erecta plants under saline stress which is crucial for the development of targeted interventions aimed at improving plant tolerance to saline conditions.
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Affiliation(s)
- Rattan Singh
- Department of Food Technology, Uttaranchal University, 248007, Dehradun, India
| | - Ivan Širić
- Faculty of Agriculture, University of Zagreb, Svetosimunska 25, 10000, Zagreb, Croatia
| | - Sadeq K Alhag
- Biology Department, College of Science and Arts, King Khalid University, 61913, Muhayl Asser, Saudi Arabia
| | - Laila A Al-Shuraym
- Biology Department, Faculty of Science, Princess Nourah bint Abdulrahman University, 11671, Riyadh, Saudi Arabia
| | - Eman A Al-Shahari
- Biology Department, College of Science and Arts, King Khalid University, 61321, Abha, Saudi Arabia
| | - Ibtisam M Alsudays
- Biology Department, College of Science, Qassim University, 52571, Buraydah, Saudi Arabia
| | - Archana Bachheti
- Department of Environment Science, Graphic Era (Deemed to Be University), Dehradun, 248002, India
| | - Madhumita Goala
- Department of Environment Science, Graphic Era (Deemed to Be University), Dehradun, 248002, India
| | - Sami Abou Fayssal
- Department of Agronomy, Faculty of Agronomy, University of Forestry, 10 Kliment Ohridski Blvd, Sofia, 1797, Bulgaria
- Department of Plant Production, Faculty of Agriculture, Lebanese University, Beirut, 1302, Lebanon
| | - Pankaj Kumar
- Agro-Ecology and Pollution Research Laboratory, Department of Zoology and Environmental Science, Gurukula Kangri (Deemed to Be University), Haridwar, 249404, India.
- Research and Development Division, Society for AgroEnvironmental Sustainability, Dehradun, 248007, India.
| | - Ebrahem M Eid
- Botany Department, Faculty of Science, Kafrelsheikh University, Kafr El-Sheikh, 33516, Egypt
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Goswami S, Dutta D, Lalhmunsiama, Dubey R, Tiwari D, Jung J. Highly efficient hydrophobic nanocomposite in the decontamination of micropollutants and bacteria from aqueous wastes: A sustainable approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 929:172546. [PMID: 38636858 DOI: 10.1016/j.scitotenv.2024.172546] [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: 03/09/2024] [Revised: 04/13/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
Micro-pollutants (specifically antibiotics and personal care products) and potential bacterial contamination pose a severe threat to human health and marine life. The study derives indigenous novel fibrous hydrophobic nanocomposite, efficient in decontaminating the micro-pollutants (tetracycline (TC) and bisphenol A (BPA)) and potential pathogens (S. pyogenes and E. coli) from aqueous wastes. A facile method synthesizes the fibrous attapulgite (ATP)- poly(4-vinylpyridine-co-styrene) (PVP) framework decorated in situ with the Ag0 nanoparticles (ATP@PVP/Ag0). A greener method using the Artocarpus heterophyllus leaf extract derives the Ag0(NPs). Various analytical methods extensively characterize the materials. A comprehensive study that includes pH, concentration, background electrolytes, and ionic strength reveals the sorptive removal insights of TC and BPA utilizing the ATP@PVP solid. The elimination of tetracycline (TC) and bisphenol A (BPA) agrees well with the pseudo-second-order kinetics. The pH 3.07 and 6.06 favor removing TC and BPA with the capacity of 10.86 mg/g and 17.36 mg/g at 25 °C. The hydrogen bonding and hydrophobic interactions predominate the sorption mechanism, and the material shows remarkable stability and reusability in repeated sorption/desorption operations. Similarly, the natural water implications and flow-bed system show fair applicability of solid in decontaminating the TC and BPA in an aqueous medium. Further, the material ATP@PVP/Ag0 exhibits very high inhibition of potential pathogens S. pyogenes and E. coli and optimizes the solid dose and solution pH.
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Affiliation(s)
- Swagata Goswami
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, India
| | - Dhiraj Dutta
- DRL, Post Bag No 02, Tezpur, Assam 784001, India
| | - Lalhmunsiama
- Department of Industrial Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, India
| | - Rama Dubey
- DRL, Post Bag No 02, Tezpur, Assam 784001, India
| | - Diwakar Tiwari
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, India.
| | - Jinho Jung
- Division of Environmental Science and Ecological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, South Korea
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3
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Upadhyay N, Das RK, Ghosh SK. Investigating the impact of n-heptane (C 7H 16) and nanoparticles (TiO 2) on diesel-microalgae biodiesel blend in CI diesel engines. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8608-8632. [PMID: 38180670 DOI: 10.1007/s11356-023-31762-4] [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: 06/16/2023] [Accepted: 12/24/2023] [Indexed: 01/06/2024]
Abstract
Recent global challenges encompass profound environmental pollution and the depletion of finite fuel resources. In this study, the biodiesel used in the mixture was derived from Azolla pinnata microalgae oil through a trans-esterification reaction chosen for its high oil concentration. During the initial phase of the experiment, varying volumes of biodiesel (5%, 10%, and 15%) and n-heptane (5%, 10%, and 15%) were introduced to diesel to form a ternary fuel blend. The experimental outcome shows that an n-heptane and biodiesel mixture of 10% by volume would produce the best results. Next, experiments were carried out by incorporating 10, 40, and 80 ppm titanium oxide (TiO2) nanoparticles (NPs) in a recommended ternary fuel blend. The experimental investigation showed that D80A10H10TNP40 (diesel 80% + biodiesel 10% + n-heptane 10% + TiO2 40 ppm) caused a 7.21% increase in brake thermal efficiency (BTE) with a decrease in brake specific fuel consumption (BSFC) and brake specific energy consumption (BSEC) by 9.58% and 10%, respectively, compared to (diesel 80% + biodiesel 20%) D80A20. D80A10H10TNP40 exhibits lower emissions, with a significant reduction of 11.29% and 20.96% in carbon monoxide (CO) and unburnt hydrocarbons (UBHC), respectively. Nitrogen oxide (NOX) and smoke emissions were reduced by 3.3% and 11.13%, respectively, compared to D80A10H10. Furthermore, D80A10H10TNP40 demonstrated enhanced combustion properties, comprising a significant rise of 4.39% in-cylinder pressure (CP), 35.29% in heat release rate (HRR), and 25.05% in the rate of pressure rise (RPR). The findings of this investigation indicate that D80A10H10TNP40 exhibits enhanced efficiency, emission, and combustion properties compared to the D80A20 fuel.
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Affiliation(s)
- Nikunj Upadhyay
- Department of Mechanical Engineering, Indian Institute of Technology, Dhanbad, Jharkhand, 826004, India
| | - Randip Kumar Das
- Department of Mechanical Engineering, Indian Institute of Technology, Dhanbad, Jharkhand, 826004, India.
| | - Subrata Kumar Ghosh
- Department of Mechanical Engineering, Indian Institute of Technology, Dhanbad, Jharkhand, 826004, India
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Roda D, Trzciński K, Łapiński M, Gazda M, Sawczak M, Nowak AP, Szkoda M. The new method of ZnIn 2S 4 synthesis on the titania nanotubes substrate with enhanced stability and photoelectrochemical performance. Sci Rep 2023; 13:21263. [PMID: 38040750 PMCID: PMC10692104 DOI: 10.1038/s41598-023-48309-9] [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: 04/12/2023] [Accepted: 11/24/2023] [Indexed: 12/03/2023] Open
Abstract
In this work, ZnIn2S4 layers were obtained on fluorine doped tin oxide (FTO) glass and TiO2 nanotubes (TiO2NT) using a hydrothermal process as photoanodes for photoelectrochemical (PEC) water splitting. Then, samples were annealed and the effect of the annealing temperature was investigated. Optimization of the deposition process and annealing of ZnIn2S4 layers made it possible to obtain an FTO-based material generating a photocurrent of 1.2 mA cm-2 at 1.62 V vs. RHE in a neutral medium. In contrast, the highest photocurrent in the neutral electrolyte obtained for the TiO2NT-based photoanode reached 0.5 mA cm-2 at 1.62 V vs. RHE. In addition, the use of a strongly acidic electrolyte allowed the generated photocurrent by the TiO2NT-based photoanode to increase to 3.02 mA cm-2 at 0.31 V vs. RHE. Despite a weaker photoresponse in neutral electrolyte than the optimized FTO-based photoanode, the use of TiO2NT as a substrate allowed for a significant increase in the photoanode's operating time. After 2 h of illumination, the photocurrent response of the TiO2NT-based photoanode was 0.21 mA cm-2, which was 42% of the initial value. In contrast, the FTO-based photoanode after the same time generated a photocurrent of 0.02 mA cm-2 which was only 1% of the initial value. The results indicated that the use of TiO2 nanotubes as a substrate for ZnIn2S4 deposition increases the photoanode's long-term stability in photoelectrochemical water splitting. The proposed charge transfer mechanism suggested that the heterojunction between ZnIn2S4 and TiO2 played an important role in improving the stability of the material by supporting charge separation.
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Affiliation(s)
- D Roda
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland.
| | - K Trzciński
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
- Advanced Materials Center, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - M Łapiński
- Advanced Materials Center, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
- Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - M Gazda
- Faculty of Applied Physics and Mathematics, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - M Sawczak
- Centre for Plasma and Laser Engineering, The Szewalski Institute of Fluid Flow Machinery, Fiszera 14, 80-231, Gdańsk, Poland
| | - A P Nowak
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
- Advanced Materials Center, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
| | - M Szkoda
- Department of Chemistry and Technology of Functional Materials, Faculty of Chemistry, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
- Advanced Materials Center, Gdańsk University of Technology, Narutowicza 11/12, 80-233, Gdańsk, Poland
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5
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Repnin A, Sotov A, Popovich A, Masaylo D. Development of TiO 2/ZrO 2 Multi-Material Obtained from Ceramic Pastes for Material Extrusion. MICROMACHINES 2023; 14:2177. [PMID: 38138346 PMCID: PMC10745982 DOI: 10.3390/mi14122177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/25/2023] [Accepted: 11/27/2023] [Indexed: 12/24/2023]
Abstract
The application of additive manufacturing method such as material extrusion (MEX) allows the successful fabrication of ceramic products, including multi-ceramic products. Promising materials in this research area are TiO2 and ZrO2 ceramics, which can be used in electrical and electronic engineering. The aim of this work is to investigate the possibility of fabricating TiO2/ZrO2 multi-materials from ceramic pastes that can be used in the MEX. In this work, defects, chemical and phase composition, and microhardness were analyzed in multi-ceramic samples after sintering. Multi-ceramic TiO2/ZrO2 samples after the sintering process without interlayer could not be fabricated due to a too large difference in shrinkage between TiO2 and ZrO2. The samples with one and three interlayers also have defects, but they are less significant and can be fabricated. The average hardness for the TiO2 zone was 636.7 HV and for the ZrO2 zone was 1101 HV. In the TiO2 zone, only TiO2 phase in rutile is observed, while in the interlayer zones, in addition to rutile, ZrO2 and ZrTiO4 are also present, as is a small amount of Y2O3. In the zone ZrO2, only the ZrO2 phase is observed. The chemical analysis revealed that the interlayers comprise sintered ZrO2 granules enveloped by TiO2, ZrO2, and ZrTiO4.
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Affiliation(s)
- Arseniy Repnin
- Institute of Machinery, Materials, and Transport, Peter the Great St. Petersburg Polytechnic University (SPbPU), Polytechnicheskaya, 29, 195251 Saint Petersburg, Russia
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6
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Yitagesu G, Leku DT, Workneh GA. Green Synthesis of TiO 2 Using Impatiens rothii Hook. f. Leaf Extract for Efficient Removal of Methylene Blue Dye. ACS OMEGA 2023; 8:43999-44012. [PMID: 38027313 PMCID: PMC10666146 DOI: 10.1021/acsomega.3c06142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/16/2023] [Accepted: 10/26/2023] [Indexed: 12/01/2023]
Abstract
In this work, TiO2 nanoparticles (NPs) were effectively synthesized by a green method using the Impatiens rothii Hook.f. leaf (IL) extract as a capping and reducing agent. The as-synthesized TiO2 NPs were characterized by different characterization methods such as the Brunauer-Emmett-Teller (BET) analysis, high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), diffused reflectance spectroscopy (DRS), and X-ray diffraction (XRD) and Raman spectroscopy. The specific surface area from BET analysis was found to be 65 m2/g. The average crystallite size from XRD analysis and average particle size from SEM analysis were found to be ∼11 and ∼25 nm, respectively. The Raman spectroscopy and XRD results showed that the biosynthesized (IL-TiO2) nanoparticles were purely anatase phase. XPS analysis illustrated the formation of Titania with an oxidation state of +4. The DRS study showcased that a blue-shifted intense absorption peak of IL-TiO2 (3.39 eV) compared to the bulk material reported in the literature (3.2 eV). HRTEM micrograph showed the presence of grain boundary with d spacings of 0.352, 0.245, and 0.190, which correspond to the lattice planes of (101), (004), and (200), respectively. From the EDX analysis, the weight percents of titanium and oxygen were found to be 54.33 and 45.67%, respectively. The photoinduced degradation of methylene blue (MB) dye was investigated in the presence of biosynthesized IL-TiO2 NPs photocatalyst. The effect of parameters like catalyst dosage (30 mg/L), initial concentration of MB (15 ppm), pH (10.5), and contact time (100 min) on the removal efficiency was optimized. The maximum photodegradation efficiency under the optimized conditions was found to be 98%.
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Affiliation(s)
- Getye
Behailu Yitagesu
- Department
of Applied Chemistry, School of Applied and Natural Sciences, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia
| | - Dereje Tsegaye Leku
- Department
of Applied Chemistry, School of Applied and Natural Sciences, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia
| | - Getachew Adam Workneh
- Department
of Industrial Chemistry, Addis Ababa Science
and Technology University, Addis Ababa P.O. Box 16417, Ethiopia
- Sustainable
Energy Center of Excellence, Addis Ababa
Science and Technology University, Addis Ababa P.O. Box 16417, Ethiopia
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7
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Hong TJ, Sivakumar C, Luo CW, Ho MS. Investigation of TiO 2 nanoparticle interactions in the fibroblast NIH-3T3 cells via liquid-mode atomic force microscope. Arch Toxicol 2023; 97:2893-2901. [PMID: 37612376 DOI: 10.1007/s00204-023-03585-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Accepted: 08/10/2023] [Indexed: 08/25/2023]
Abstract
Long before we recognized how significant they were, nanoparticles were already all around in the environment. Since then, an extensive number of synthetic nanoparticles have been engineered to improve our quality of life through rigorous scientific research on their uses in practically every industry, including semiconductor devices, food, medicine, and agriculture. The extensive usage of nanoparticles in commodities that come into proximity with human skin and internal organs through medicine has raised significant concerns over the years. TiO2 nanoparticles (NPs) are widely employed in a wide range of industries, such as cosmetics and food packaging. The interaction and internalization of TiO2 NPs in living cells have been studied by the scientific community for many years. In the present study, we investigated the cell viability, nanomechanical characteristics, and fluorescence response of NIH-3T3 cells treated with sterile DMEM TiO2 nanoparticle solution using a liquid-mode atomic force microscope and a fluorescence microscope. Two different sorts of response systems have been observed in the cells depending on the size of the NPs. TiO2 nanoparticles smaller than 100 nm support its initial stages cell viability, and cells internalize and metabolize NPs. In contrast, bigger TiO2 NPs (> 100 nm) are not completely metabolized and cannot impair cell survival. Furthermore, bigger NPs above 100 nm could not be digested by the cells, therefore hindering cell development, whereas below 100 nm TiO2 stimulated uncontrolled cell growth akin to cancerous type cells. The cytoskeleton softens as a result of particle internalization, as seen by the nanomechanical characteristics of the nanoparticle treated cells. According to our investigations, TiO2 smaller than 100 nm facilitates unintended cancer cell proliferation, whereas larger NPs ultimately suppress cell growth. Before being incorporated into commercial products, similar effects or repercussions that could result from employing different NPs should be carefully examined.
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Affiliation(s)
- Tz-Ju Hong
- Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | | | - Chih-Wei Luo
- Department of Electrophysics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu, 30076, Taiwan
- Institute of Physics and Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
- Taiwan Consortium of Emergent Crystalline Materials (TCECM), Ministry of Science and Technology, Taipei, 10601, Taiwan
| | - Mon-Shu Ho
- Department of Physics, National Chung Hsing University, Taichung City, 40227, Taiwan.
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Kocijan M, Ćurković L, Vengust D, Radošević T, Shvalya V, Gonçalves G, Podlogar M. Synergistic Remediation of Organic Dye by Titanium Dioxide/Reduced Graphene Oxide Nanocomposite. Molecules 2023; 28:7326. [PMID: 37959746 PMCID: PMC10647384 DOI: 10.3390/molecules28217326] [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: 09/23/2023] [Revised: 10/18/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
In this work, nanocomposites based on titanium dioxide and reduced graphene oxide (TiO2@rGO) with different weight percentages of rGO (4, 8, and 16 wt%) were prepared by the hydrothermal/solvothermal synthesis method and thermally treated at 300 °C. The prepared nanocomposites were explored for the removal of methylene blue dye (MB) in the presence of simulated solar illumination as well as natural sunlight. The structural, morphological, chemical, and optical properties of the as-synthesized TiO2@rGO nanocomposites were characterized. The obtained results of the graphene-based nanocomposite materials indicated the existence of interactions between TiO2 and rGO, i.e., the Ti-O-C bond, which confirmed the successful integration of both components to form the TiO2@rGO nanocomposites. The addition of rGO increased the specific surface area, decreased the band gap energy, and increased the photocatalytic degradation efficiency of MB from water compared to TiO2 nanoparticles. The results of photocatalytic activity indicated that the amount of rGO in the prepared TiO2@rGO nanocomposites played a significant role in the application of different photocatalytic parameters, including the initial dye concentration, catalyst concentration, water environment, and illumination source. Our studies show that the reinforcement of the nanocomposite with 8 wt% of rGO allowed us to obtain the maximum photocatalytic decomposition performance of MB (10 mg·L-1) with a removal percentage of 99.20 after 2 h. Additionally, the obtained results show that the prepared TiO2@rGO_8 wt% nanocomposite can be used in three consecutive cycles while maintaining photocatalytic activity over 90%.
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Affiliation(s)
- Martina Kocijan
- Department of Materials, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
| | - Lidija Ćurković
- Department of Materials, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
| | - Damjan Vengust
- Advanced Materials Department, Jožef Stefan Institute, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia;
| | - Tina Radošević
- Department for Nanostructured Materials, Jožef Stefan Institute, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia; (T.R.); (M.P.)
| | - Vasyl Shvalya
- Department of Gaseous Electronics, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia;
| | - Gil Gonçalves
- Centre for Mechanical Technology and Automation (TEMA), Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal;
- Intelligent Systems Associate Laboratory (LASI), 4800-058 Guimarães, Portugal
| | - Matejka Podlogar
- Department for Nanostructured Materials, Jožef Stefan Institute, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia; (T.R.); (M.P.)
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9
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Legaspi EDR, Regulacio MD. Nanocomposites of Cu 2O with plasmonic metals (Au, Ag): design, synthesis, and photocatalytic applications. NANOSCALE ADVANCES 2023; 5:5683-5704. [PMID: 37881695 PMCID: PMC10597568 DOI: 10.1039/d3na00712j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 09/22/2023] [Indexed: 10/27/2023]
Abstract
Metal-semiconductor nanocomposites have been utilized in a multitude of applications in a wide array of fields, prompting substantial interest from different scientific sectors. Of particular interest are semiconductors paired with plasmonic metals due to the unique optical properties that arise from the individual interactions of these materials with light and the intercomponent movement of charge carriers in their heterostructure. This review focuses on the pairing of Cu2O semiconductor with strongly plasmonic metals, particularly Au and Ag. The design and synthesis of Au-Cu2O and Ag-Cu2O nanostructures, along with ternary nanostructures composed of the three components, are described, with in-depth discussion on the synthesis techniques and tunable parameters. The effects of compositing on the optical and electronic properties of the nanocomposites in the context of photocatalysis are discussed as well. Concluding remarks and potential areas for exploration are presented in the last section.
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Affiliation(s)
- Enrico Daniel R Legaspi
- Institute of Chemistry, University of the Philippines Diliman Quezon City 1101 Philippines
- Materials Science and Engineering Program, University of the Philippines Diliman Quezon City 1101 Philippines
| | - Michelle D Regulacio
- Institute of Chemistry, University of the Philippines Diliman Quezon City 1101 Philippines
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10
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Islam MT, Roni MNP, Ali MY, Islam MR, Hossan MS, Rahman MH, Zahid AASM, Alam MNE, Hanif MA, Akhtar MS. Selectivity of Sol-Gel and Hydrothermal TiO 2 Nanoparticles towards Photocatalytic Degradation of Cationic and Anionic Dyes. Molecules 2023; 28:6834. [PMID: 37836678 PMCID: PMC10574600 DOI: 10.3390/molecules28196834] [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: 07/27/2023] [Revised: 09/23/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Titanium dioxide (TiO2) nanoparticles have been extensively studied for catalyzing the photo-degradation of organic pollutants, the photocatalyst being nonselective to the substrate. We, however, found that TiO2 nanoparticles prepared via the sol-gel and hydrothermal synthetic routes each possess a definite specificity to the charge of the substrate for photodegradation. The nanoparticles were characterized by SEM, FTIR, XRD, TGA, and UV-visible spectra, and the photocatalytic degradation under UV-B (285 nm) irradiation of two model compounds, anionic methyl Orange (MO) and cationic methylene blue (MB) was monitored by a UV-visible spectrophotometer. Untreated sol-gel TiO2 nanoparticles (Tsg) preferentially degraded MO over MB (90% versus 40% in two hours), while after calcination at 400 °C for two hours (Tsgc) they showed reversed specificity (50% MO versus 90% MB in one hour). The as-prepared hydrothermal TiO2 nanoparticles (Tht) behaved in the opposite sense of Tsg (41% MO versus 91% MB degraded in one and a half hours); calcination at 400 °C (Thtc) did not reverse the trend but enhanced the efficiency of degradation. The study indicates that TiO2 nanoparticles can be made to degrade a specific class of organic pollutants from an effluent facilitating the recycling of a specific class of pollutants for cost-effective effluent management.
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Affiliation(s)
- Md. Torikul Islam
- Department of Chemistry, University of Rajshahi, Rajshahi 6205, Bangladesh
| | | | - Md. Yunus Ali
- Department of Chemistry, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Md. Robiul Islam
- Department of Chemistry, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Md. Shamim Hossan
- Department of Chemistry, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - M. Habibur Rahman
- Department of Chemistry, University of Rajshahi, Rajshahi 6205, Bangladesh
| | | | - Md. Nur E Alam
- Bangladesh Atomic Energy Commission, Dhaka 1207, Bangladesh
| | - Md. Abu Hanif
- Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
| | - M. Shaheer Akhtar
- Graduate School of Integrated Energy-AI, Jeonbuk National University, Jeonju 54896, Republic of Korea
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11
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Tassinari R, Tammaro A, Martinelli A, Valeri M, Maranghi F. Sex-Specific Effects of Short-Term Oral Administration of Food-Grade Titanium Dioxide Nanoparticles in the Liver and Kidneys of Adult Rats. TOXICS 2023; 11:776. [PMID: 37755786 PMCID: PMC10536411 DOI: 10.3390/toxics11090776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023]
Abstract
Titanium dioxide (TiO2) nanomaterial is used in several items (implant materials, pills composition, cosmetics, etc.). Although TiO2 is no longer considered safe as a food additive, the general population is exposed daily through different routes, and information is lacking on some aspects of animal and human health. This study evaluated liver and kidney toxicity of food-grade TiO2 nanoparticles (NPs) (primary size < 25 nm) in male and female rats that were orally exposed for 5 days to 0, 1, and 2 mg/kg body weight per day (comparable with daily E171 consumption). Selected liver and kidney toxicity endpoints included serum biomarkers, histopathological analysis and expression of osteopontin (SPP1), vascular endothelial growth factor (VEGF), interleukin 6 (IL-6), and neuropeptide Y (NPY). Although TiO2 NPs are known to affect the gastric mucosa, short-term exposure induced sex-specific effects: general toxicity parameters were predominantly altered in female rats, whereas the liver appeared to be more affected than the kidneys in male rats, which also showed overexpression of NPY and SPP1. In the kidneys, the TiO2 NP effects were quantitatively similar but qualitatively different in the two sexes. In conclusion, careful consideration should be paid to the presence of TiO2 NPs in other items that can lead to human exposure.
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Affiliation(s)
- Roberta Tassinari
- Center for Gender Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (R.T.); (A.T.)
| | - Alessia Tammaro
- Center for Gender Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (R.T.); (A.T.)
- Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, 00173 Rome, Italy
| | - Andrea Martinelli
- Experimental Animal Welfare Sector, Istituto Superiore di Sanità, 00161 Rome, Italy; (A.M.); (M.V.)
| | - Mauro Valeri
- Experimental Animal Welfare Sector, Istituto Superiore di Sanità, 00161 Rome, Italy; (A.M.); (M.V.)
| | - Francesca Maranghi
- Center for Gender Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (R.T.); (A.T.)
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12
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Pascariu P, Gherasim C, Airinei A. Metal Oxide Nanostructures (MONs) as Photocatalysts for Ciprofloxacin Degradation. Int J Mol Sci 2023; 24:ijms24119564. [PMID: 37298517 DOI: 10.3390/ijms24119564] [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: 04/12/2023] [Revised: 05/24/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
In recent years, organic pollutants have become a global problem due to their negative impact on human health and the environment. Photocatalysis is one of the most promising methods for the removal of organic pollutants from wastewater, and oxide semiconductor materials have proven to be among the best in this regard. This paper presents the evolution of the development of metal oxide nanostructures (MONs) as photocatalysts for ciprofloxacin degradation. It begins with an overview of the role of these materials in photocatalysis; then, it discusses methods of obtaining them. Then, a detailed review of the most important oxide semiconductors (ZnO, TiO2, CuO, etc.) and alternatives for improving their photocatalytic performance is provided. Finally, a study of the degradation of ciprofloxacin in the presence of oxide semiconductor materials and the main factors affecting photocatalytic degradation is carried out. It is well known that antibiotics (in this case, ciprofloxacin) are toxic and non-biodegradable, which can pose a threat to the environment and human health. Antibiotic residues have several negative impacts, including antibiotic resistance and disruption of photosynthetic processes.
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Affiliation(s)
- Petronela Pascariu
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Carmen Gherasim
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Anton Airinei
- Petru Poni Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
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13
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Minghui F, Ran S, Yuxue J, Minjia S. Toxic effects of titanium dioxide nanoparticles on reproduction in mammals. Front Bioeng Biotechnol 2023; 11:1183592. [PMID: 37251560 PMCID: PMC10213439 DOI: 10.3389/fbioe.2023.1183592] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 04/27/2023] [Indexed: 05/31/2023] Open
Abstract
Titanium dioxide nanoparticles (nano-TiO2) are widely used in food, textiles, coatings and personal care products; however, they cause environmental and health concerns. Nano-TiO2 can accumulate in the reproductive organs of mammals in different ways, affect the development of the ovum and sperm, damage reproductive organs and harm the growth and development of offspring. The oxidative stress response in germ cells, irregular cell apoptosis, inflammation, genotoxicity and hormone synthesis disorder are the main mechanisms of nano-TiO2 toxicity. Possible measures to reduce the harmful effects of nano-TiO2 on humans and nontarget organisms have emerged as an underexplored topic requiring further investigation.
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14
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Van Thuan D, Ngo HL, Thi HP, Thu Hien CT. Photodegradation of hazardous organic pollutants using titanium oxides -based photocatalytic: A review. ENVIRONMENTAL RESEARCH 2023; 229:116000. [PMID: 37127104 DOI: 10.1016/j.envres.2023.116000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/13/2023] [Accepted: 04/25/2023] [Indexed: 05/03/2023]
Abstract
Titanium oxide-based photocatalysts (TOBPs) have been widely utilized as potential materials for numerous applications, such as wastewater treatment, water-splitting reactions, carbon dioxide (CO2) reduction and photosynthesis. However, the large bandgap of intrinsic TiO2 limits their absorption toward visible light, which is the central part of the solar spectrum, resulting in low photocatalytic activities under sunlight. To overcome this obstacle, several strategies, such as doping with either metal or non-metal elements or combining with other compounds, are efficient ways to reduce the bandgap of TiO2, leading to effectively extending their absorption toward the visible region and increasing their catalytic performance. In this review, we discussed the application of TOBPs for the photodegradation of hazardous organic pollutants in wastewater to produce quality reused water. The synthesis of TiO2 and the enhancement of photocatalytic activities of TOBPs by different techniques with detailed information were provided. Application of TOBPs for decomposing hazardous organic pollutants such as dyes, phenolic compounds and pharmaceuticals under optimum conditions have been listed. Also, the photodegradation mechanisms of hazardous organic compounds have been investigated. This work also brings ideas for future perspectives and research plan to inhibit the disadvantages and expand the application of TOBPs to remove toxic organic pollutants.
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Affiliation(s)
- Doan Van Thuan
- VKTech Research Center, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Nguyen Tat Thanh Street, Ward 13, District 4, Ho Chi Minh City, Viet Nam
| | - Hoang Long Ngo
- VKTech Research Center, NTT Hi-Tech Institute, Nguyen Tat Thanh University, Nguyen Tat Thanh Street, Ward 13, District 4, Ho Chi Minh City, Viet Nam
| | - Huong Pham Thi
- Laboratory of Environmental Sciences and Climate Change, Institute for Computational Science and Artificial Intelligence, Van Lang University, Ho Chi Minh City, Viet Nam; Faculty of Environment, Van Lang University, Ho Chi Minh City, Viet Nam.
| | - Chu Thi Thu Hien
- Department of Chemistry, Faculty of Building Materials, Ha Noi University of Civil Engineering (HUCE), Giai Phong, Hai Ba Trung, Hanoi, 10000, Viet Nam.
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15
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Chen X, Huang W, Liu C, Song H, Waiho K, Lin D, Fang JKH, Hu M, Kwan KY, Wang Y. Intestinal response of mussels to nano-TiO 2 and pentachlorophenol in the presence of predator. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161456. [PMID: 36640886 DOI: 10.1016/j.scitotenv.2023.161456] [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: 11/06/2022] [Revised: 12/21/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
With the development of industry, agriculture and intensification of human activities, a large amount of nano-TiO2 dioxide and pentachlorophenol have entered aquatic environment, causing potential impacts on the health of aquatic animals and ecosystems. We investigated the effects of predators, pentachlorophenol (PCP) and nano titanium dioxide (nano-TiO2) on the gut health (microbiota and digestive enzymes) of the thick-shelled mussel Mytilus coruscus. Nano-TiO2, as the photocatalyst for PCP, enhanced to toxic effects of PCP on the intestinal health of mussels, and they made the mussels more vulnerable to the stress from predators. Nano-TiO2 particles with smaller size exerted a larger negative effect on digestive enzymes, whereas the size effect on gut bacteria was insignificant. The presence of every two of the three factors significantly affected the population richness and diversity of gut microbiota. Our findings revealed that the presence of predators, PCP, and nano-TiO2 promoted the proliferation of pathogenic bacteria and inhibited digestive enzyme activity. This research investigated the combined stress on marine mussels caused by nanoparticles and pesticides in the presence of predators and established a theoretical framework for explaining the adaptive mechanisms in gut microbes and the link between digestive enzymes and gut microbiota.
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Affiliation(s)
- Xiang Chen
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Science, Beibu Gulf University, Qinzhou City, China; International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Wei Huang
- Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China
| | - Chunhua Liu
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Hanting Song
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Khor Waiho
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Daohui Lin
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - James K H Fang
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong SAR, China
| | - Menghong Hu
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Kit Yue Kwan
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity Conservation, College of Marine Science, Beibu Gulf University, Qinzhou City, China
| | - Youji Wang
- International Research Center for Marine Biosciences, Shanghai Ocean University, Ministry of Science and Technology, China; Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China.
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16
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Shaarawy HH, Hussein HS, Hussien NH, Al Bazedi GA, Hawash SI. Green production of titanium dioxide nanometric particles through electrolytic anodic dissolution of titanium metal. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:24043-24061. [PMID: 36333636 PMCID: PMC9938833 DOI: 10.1007/s11356-022-23766-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
Nanometric titanium derivatives such as hydroxide and dioxide compounds have a great attention because they are significant industrial material of commercial importance and applications in photocatalyst, semiconductors, and wastewater treatment. The present investigation gives the results of anodic dissolution preparation of titanium hydroxide nanometric particles followed by calcination for complete conversion to nanometric titanium dioxide product. The optimum conditions for the anodic dissolution of titanium metal were pH 4, C.D. 65 mA/cm2, 25 °C, 150 rpm, electrode gap distance 3 cm, and NaCl 3 g/l for electrolysis time 240 min and thermally calcinated at 600 °C for 240 min., to reach complete conversion to anatase titanium dioxide nanopowder of main particles size of 77 nm with major percentage of 70%. Chemical and physical characterizations were carried out for evaluation of the obtained products including transmission electron microscope, EDX, XRD, and the scanning advanced electronic diffraction pattern. Preliminary economic indicators were calculated to show that the capital cost of the plant is $1.613 million, with annual operating cost of $0.915 million which means the required investment is $2.528 million. The operating cost for the production of nanometric anatase TiO2 is $30.5/kg with depreciation excluding the land price.
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Affiliation(s)
- Hassan H Shaarawy
- Chemical Engineering & Pilot Plant Dep, Engineering Research and Renewable Energy Institute, National Research Centre (NRC), Cairo, 12311, Egypt
| | - Hala S Hussein
- Chemical Engineering & Pilot Plant Dep, Engineering Research and Renewable Energy Institute, National Research Centre (NRC), Cairo, 12311, Egypt.
| | - Nabila H Hussien
- Chemical Engineering & Pilot Plant Dep, Engineering Research and Renewable Energy Institute, National Research Centre (NRC), Cairo, 12311, Egypt
| | - Ghada A Al Bazedi
- Chemical Engineering & Pilot Plant Dep, Engineering Research and Renewable Energy Institute, National Research Centre (NRC), Cairo, 12311, Egypt
- Center of Applied Research On the Environment and Sustainability(CARES), School of Science and Engineering, The American University, Cairo, Egypt
| | - Salwa I Hawash
- Chemical Engineering & Pilot Plant Dep, Engineering Research and Renewable Energy Institute, National Research Centre (NRC), Cairo, 12311, Egypt
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17
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Shi H, Shi C, Jia Z, Zhang L, Wang H, Chen J. Titanium dioxide-based anode materials for lithium-ion batteries: structure and synthesis. RSC Adv 2022; 12:33641-33652. [PMID: 36505712 PMCID: PMC9682492 DOI: 10.1039/d2ra05442f] [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: 08/30/2022] [Accepted: 11/08/2022] [Indexed: 11/24/2022] Open
Abstract
Lithium-ion batteries (LIBs) have high energy density, long life, good safety, and environmental friendliness, and have been widely used in large-scale energy storage and mobile electronic devices. As a cheap and non-toxic anode material for LIBs, titanium dioxide (TiO2) has a good application prospect. However, its poor electrical conductivity leads to unsatisfactory electrochemical performance, which limits its large-scale application. In this review, the structure of three TiO2 polymorphs which are widely investigated are briefly described, then the preparation and electrochemical performance of TiO2 with different morphologies, such as nanoparticles, nanowires, nanotubes, and nanospheres, and the related research on the TiO2 composite materials with carbon, silicon, and metal materials are discussed. Finally, the development trend of TiO2-based anode materials for LIBs has been briefly prospected.
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Affiliation(s)
- Huili Shi
- College of Chemistry and Chemical Engineering, Guizhou UniversityGuiyang550025China
| | - Chaoyun Shi
- College of Chemistry and Chemical Engineering, Guizhou UniversityGuiyang550025China
| | - Zhitong Jia
- College of Chemistry and Chemical Engineering, Guizhou UniversityGuiyang550025China
| | - Long Zhang
- College of Chemistry and Chemical Engineering, Guizhou UniversityGuiyang550025China
| | - Haifeng Wang
- College of Material and Metallurgy, Guizhou UniversityGuiyang550025China
| | - Jingbo Chen
- College of Chemistry and Chemical Engineering, Guizhou UniversityGuiyang550025China,Collaborative Innovation Center of Guizhou Province for Efficient Utilization of Phosphorus and Fluorine Resources, Guizhou UniversityGuiyang550025China
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18
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The Role of Titanium Dioxide (E171) and the Requirements for Replacement Materials in Oral Solid Dosage Forms: An IQ Consortium Working Group Review. J Pharm Sci 2022; 111:2943-2954. [PMID: 35973604 DOI: 10.1016/j.xphs.2022.08.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/09/2022] [Accepted: 08/09/2022] [Indexed: 12/14/2022]
Abstract
Titanium dioxide (in the form of E171) is a ubiquitous excipient in tablets and capsules for oral use. In the coating of a tablet or in the shell of a capsule the material disperses visible and UV light so that the contents are protected from the effects of light, and the patient or caregiver cannot see the contents within. It facilitates elegant methods of identification for oral solid dosage forms, thus aiding in the battle against counterfeit products. Titanium dioxide ensures homogeneity of appearance from batch to batch fostering patient confidence. The ability of commercial titanium dioxide to disperse light is a function of the natural properties of the anatase polymorph of titanium dioxide, and the manufacturing processes used to produce the material utilized in pharmaceuticals. In some jurisdictions E171 is being considered for removal from pharmaceutical products, as a consequence of it being delisted as an approved colorant for foods. At the time of writing, in the view of the authors, no system or material which could address both current and future toxicological concerns of Regulators and the functional needs of the pharmaceutical industry and patients has been identified. This takes into account the assessment of materials such as calcium carbonate, talc, isomalt, starch and calcium phosphates. In this paper an IQ Consortium team outlines the properties of titanium dioxide and criteria to which new replacement materials should be held.
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19
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Chae A, Doo S, Kim D, Ko TY, Oh T, Kim SJ, Koh DY, Koo CM. Tunable Ti 3C 2T x MXene-Derived TiO 2 Nanocrystals at Controlled pH and Temperature. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:12657-12665. [PMID: 36206453 DOI: 10.1021/acs.langmuir.2c02110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
While two-dimensional (2D) Ti3C2Tx MXene in aqueous dispersions spontaneously oxidizes into titanium dioxide (TiO2) nanocrystals, the crystallization mechanism has not been comprehensively understood and the resultant crystal structures are not controlled among three representative polymorphs: anatase, rutile, and brookite. In this study, such control on the lattice structures and domain sizes of the MXene-derived TiO2 crystallites is demonstrated by means of the oxidation conditions, pH, and temperature (3.0-11.0 and 20-100 °C, respectively). It is observed that the formation of anatase phase is preferred against rutile phase in more basic and hotter oxidizing solutions, and even 100% anatase can be obtained at pH 11.0 and 100 °C. At lower pH and temperature, the portion of rutile phase increases such that it reaches ∼70% at pH 3 and 20 °C. Under certain circumstances, small portion of brookite phase is also observed. Smaller domain sizes of both anatase and rutile phases are observed in more basic oxidizing solutions and at lower temperatures. Based on these experimental results, we propose the crystallization mechanism in which the oxidative dissociation of Ti3C2Tx first produces Ti ions as the intermediate state, and they bind to abundant oxygen in the aqueous dispersions, and nucleate and crystallize into TiO2.
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Affiliation(s)
- Ari Chae
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul02792, Republic of Korea
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291, Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Sehyun Doo
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul02792, Republic of Korea
| | - Daesin Kim
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul02792, Republic of Korea
| | - Tae Yun Ko
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul02792, Republic of Korea
| | - Taegon Oh
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul02792, Republic of Korea
| | - Seon Joon Kim
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul02792, Republic of Korea
- Division of Nanoscience & Technology, KIST School, University of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul02792, Republic of Korea
| | - Dong-Yeun Koh
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 291, Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Chong Min Koo
- Materials Architecturing Research Center, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul02792, Republic of Korea
- School of Advanced Materials Science and Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon-si, Gyeonggi-do16419, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon-si, Gyeonggi-do16419, Republic of Korea
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20
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Thiehmed ZA, Altahtamouni TM. Morphology Control of TiO 2 Nanorods Using KBr Salt for Enhancing the Photocatalytic Activity of TiO 2 and MoS 2/TiO 2 Heterostructures. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2904. [PMID: 36079942 PMCID: PMC9457778 DOI: 10.3390/nano12172904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 06/05/2022] [Accepted: 06/18/2022] [Indexed: 06/15/2023]
Abstract
In this study, the effect of KBr salt on the growth of TiO2 nanorods (NRs) was systematically studied. The addition of KBr with different concentrations provides a controllable growth of TiO2 NRs using hydrothermal method. The results revealed that the presence of KBr molecules affects the growth rate by suppressing the growth in the lateral direction and allowing for axial growth. This results in affecting the morphology by decreasing the diameter of the nanorods, and increasing the free space between them. Enhancing the free spaces between the adjacent nanorods gives rise to remarkable increase in the internal surface area, with more exposure side surface. To obtain benefit from the enlargement in the inner surface area, TiO2 NRs were used for the preparation of MoS2/TiO2 heterostructures. To study the influence of the morphology on their activity, TiO2 NRs samples with different KBr concentrations as well as the MoS2/TiO2 heterostructures were evaluated towards the photocatalytic degradation of Rhodamine B dyes.
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21
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David TM, Dev PR, Wilson P, Sagayaraj P, Mathews T. A critical review on the variations in anodization parameters toward microstructural formation of TiO
2
nanotubes. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100083] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Affiliation(s)
- T. Manovah David
- Thin Films and Coatings Section Surface Nanoscience Division Materials Science Group Indira Gandhi Centre for Atomic Research (IGCAR) Kalpakkam India
| | - Priya Ranjan Dev
- Department of Chemistry Madras Christian College (Autonomous) University of Madras Chennai India
| | - P. Wilson
- Department of Chemistry Madras Christian College (Autonomous) University of Madras Chennai India
| | - P. Sagayaraj
- Department of Physics, Loyola College (Autonomous) Chennai India
| | - Tom Mathews
- Thin Films and Coatings Section Surface Nanoscience Division Materials Science Group Indira Gandhi Centre for Atomic Research (IGCAR) Kalpakkam India
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22
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Investigation of different training function efficiency in modeling thermal conductivity of TiO2/Water nanofluid using artificial neural network. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Potential Use of Chitosan-TiO 2 Nanocomposites for the Electroanalytical Detection of Imidacloprid. Polymers (Basel) 2022; 14:polym14091686. [PMID: 35566856 PMCID: PMC9099656 DOI: 10.3390/polym14091686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/15/2022] [Accepted: 02/23/2022] [Indexed: 01/27/2023] Open
Abstract
The detection of toxic insecticides is a major scientific and technological challenge. In this regard, imidacloprid is a neonicotinoid that is a systemic insecticide that can accumulate in agricultural products and affect human health. This work aims to study the properties of chitosan–TiO2 nanocomposites in which nanoparticles with high surface area serve as molecular recognition sites for electroanalytical imidacloprid detection. We show that the best sensitivity to imidacloprid was obtained using a modified electrode with a chitosan–TiO2 nanocomposite with a 40 wt.% of TiO2 nanoparticles. By using a three-phase effective permittivity model which includes chitosan, TiO2, an interface layer between nanoparticles and a matrix, we showed that nanocomposites with 40 wt.% of TiO2 the interface volume fraction reaches a maximum. At higher nanoparticle concentration, the sensitivity of the sensor decreases due to the decreasing of the interface volume fraction, agglomeration of nanoparticles and a decrease in their effective surface area. The methodology presented can be helpful in the design and optimization of polymer-based nanocomposites for a variety of applications.
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24
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Javed R, Ain NU, Gul A, Arslan Ahmad M, Guo W, Ao Q, Tian S. Diverse biotechnological applications of multifunctional titanium dioxide nanoparticles: An up-to-date review. IET Nanobiotechnol 2022; 16:171-189. [PMID: 35411585 PMCID: PMC9178655 DOI: 10.1049/nbt2.12085] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/13/2022] [Accepted: 03/31/2022] [Indexed: 12/14/2022] Open
Abstract
Titanium dioxide (TiO2) nanoparticles (NPs) are one of the topmost widely used metallic oxide nanoparticles. Whether present in naked form or doped with metals or polymers, TiO2 NPs perform immensely important functions. However, the alteration in size and shape by doping results in improving the physical, chemical, and biological behaviour of TiO2 NPs. Hence, the differential effects of various TiO2 nanostructures including nanoflakes, nanoflowers, and nanotubes in various domains of biotechnology have been elucidated by researchers. Recently, the exponential growth of research activities regarding TiO2 NPs has been observed owing to their chemical stability, low toxicity, and multifaceted properties. Because of their enormous abundance, plants, humans, and environment are inevitably exposed to TiO2 NPs. These NPs play a significant role in improving agricultural attributes, removing environmental pollution, and upgrading the domain of nanomedicine. Therefore, the currently ongoing studies about the employment of TiO2 NPs in enhancement of different aspects of agriculture, environment, and medicine have been extensively discussed in this review.
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Affiliation(s)
- Rabia Javed
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial, Institute of Regulatory Science for Medical Device, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China.,Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Noor Ul Ain
- Department of Biotechnology, Quaid-i-Azam University, Islamabad, Pakistan
| | - Ayesha Gul
- NANOCAT Research Center, Institute for Advanced Studies, University of Malaya, Kuala Lumpur, Malaysia
| | - Muhammad Arslan Ahmad
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Weihong Guo
- Fuwai Hospial, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qiang Ao
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial, Institute of Regulatory Science for Medical Device, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Shen Tian
- Department of Neurology, The 4th Affiliated Hospital of China Medical University, Shenyang, China
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Ahn EY, Shin SW, Kim K, Park Y. Facile Green Synthesis of Titanium Dioxide Nanoparticles by Upcycling Mangosteen (Garcinia mangostana) Pericarp Extract. NANOSCALE RESEARCH LETTERS 2022; 17:40. [PMID: 35357581 PMCID: PMC8971259 DOI: 10.1186/s11671-022-03678-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 03/16/2022] [Indexed: 05/06/2023]
Abstract
In the present report, green synthesis of titanium dioxide nanoparticles (TiO2 NPs) was performed by upcycling mangosteen (Garcinia mangostana) pericarp extract (methanol and ethyl acetate extracts). Field emission scanning electron microscopy images revealed an aggregated structure with a highly porous network of TiO2 NPs. TiO2 NPs synthesized with ethyl acetate extract (EtOAc-TiO2 NPs) exhibited more monodispersity and possessed smoother surfaces than the control TiO2 NPs (Con-TiO2 NPs) and TiO2 NPs synthesized with methanol extract (MeOH-TiO2 NPs). High-resolution X-ray diffraction patterns clearly confirmed that TiO2 NPs had a crystalline nature. A mixture of anatase and rutile was observed in Con-TiO2 NPs and MeOH-TiO2 NPs, while EtOAc-TiO2 NPs had only anatase with the smallest size (12.50 ± 1.81 nm). Ethyl acetate extract contained the highest amount of α-mangostin; thus, the surface of TiO2 NPs was functionalized with ethyl acetate extract. The functionalized TiO2 NPs synthesized with ethyl acetate extract (EtOAc-TiO2-αm) showed the highest 2,2-diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl (DPPH) radical scavenging activity. In vitro cell viability on mouse fibroblast cells (NIH3T3) indicated that the newly synthesized TiO2 NPs did not show any significant cytotoxicity. Therefore, the TiO2 NPs in the present report have the potential to be used in cosmetic applications such as sunscreens.
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Affiliation(s)
- Eun-Young Ahn
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea
| | - Sang-Woo Shin
- Department of Pharmaceutical Engineering, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea
| | - Kyeongsoon Kim
- Department of Pharmaceutical Engineering, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea
| | - Youmie Park
- College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea.
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Fang L, Hu E, Hu X, Jiang Z, Shah MAKY, Wang J, Wang F. Development of a Core-Shell Heterojunction TiO2/SrTiO3 electrolyte with improved ionic conductivity. Chemphyschem 2022; 23:e202200170. [PMID: 35322910 DOI: 10.1002/cphc.202200170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Indexed: 11/07/2022]
Abstract
Lately, semiconductor-membrane fuel cells (SMFCs) have attained significant interest and great attention due to the deliverance of high performance at low operational temperatures, < 550 o C. This work has synthesized the nanocomposite core-shell heterostructure (TiO 2 -SrTiO 3- ) electrolyte powder by employing the simple hydrothermal method for the SMFC. The SrTiO 3 was grown in situ on the surface of TiO 2 to form a core-shell structure. A heterojunction mechanism based on the energy band structure is proposed to explain the ion transport pathway and promote protonic conductivity. The core-shell heterostructure (TiO 2 -SrTiO 3 ) was utilized as an electrolyte to reach the peak power density of 951 mW cm -2 with an open-circuit voltage of 1.075 V at 550 o C. The formation of core-shell heterostructure among TiO 2 and SrTiO 3 causes redistribution of charges and establishes a depletion region at the interface, which confined the protons' transport on the surface layer with accelerated ion transport and lower activation energy. The current work reveals novel insights to understand enhanced proton transport and unique methodology to develop low-temperature ceramic fuel cells with high performance.
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Affiliation(s)
- Li Fang
- Southeast University, School of Energy & Environment, CHINA
| | - Enyi Hu
- Southeast University, School of Energy & Environment, CHINA
| | - Xiaojian Hu
- PowerChina Huadong Engineering Corporation Limited, Power China, CHINA
| | - Zheng Jiang
- Southeast University, School of Energy & Environment, CHINA
| | | | - Jun Wang
- Southeast University, School of Energy & Environment, CHINA
| | - Faze Wang
- Southeast University, School of Energy & Environment, No.2 Sipailou, Nanjing, Jiangsu Province, 210096, Nanjing, CHINA
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Conte F, Villa A, Prati L, Pirola C, Bennici S, Ramis G, Rossetti I. Effect of Metal Cocatalysts and Operating Conditions on the Product Distribution and the Productivity of the CO2 Photoreduction. Ind Eng Chem Res 2022; 61:2963-2972. [PMID: 35264822 PMCID: PMC8895397 DOI: 10.1021/acs.iecr.1c02514] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 01/15/2022] [Accepted: 01/21/2022] [Indexed: 12/02/2022]
Abstract
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The CO2 photoreduction is a promising way to convert
one of the most abundant greenhouse gases to valuable chemicals. The
photoreduction in the liquid phase is limited by the low solubility
of CO2 in water, but this point is overcome here by using
an innovative photoreactor, which allows one to work up to pressures
of 20 bar, improving the overall productivity. The photoreduction
was performed in the presence of Na2SO3 and
using in primis commercial titanium dioxide (P25) and a set of titania
catalysts functionalized by surface deposition of either monometallic
or bimetallic cocatalysts. The gaseous products were hydrogen and
traces of CO, while, in the liquid phase, formic acid/formate, formaldehyde
and methanol were quantitatively detected. The pH was observed to
shift the products distribution. A neutral environment led mainly
to hydrogen and methanol, while, at pH 14, formate was the most abundant
compound. The trend for monometallic cocatalysts showed enhanced productivity
when using noble metals (i.e., gold and platinum). In order to limit
the cost of the catalytic material, bimetallic cocatalysts were explored,
adding titania with Au+Ag or Au+Pt. This may open to the possibility
of performing the reaction with a smaller amount of the most expensive
metals. In the end, we have expressed some conclusions on the cost
of the photocatalysts here employed, to support the overall feasibility
assessment of the process.
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Affiliation(s)
- Francesco Conte
- Dip. Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
| | - Alberto Villa
- Dip. Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
| | - Laura Prati
- Dip. Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
| | - Carlo Pirola
- Dip. Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
| | - Simona Bennici
- Institut de Science des Matériaux de Mulhouse (IS2M), Université de Haute-Alsace, CNRS, IS2M UMR 7361, F-68100, Mulhouse, France
| | - Gianguido Ramis
- Dip. Ing. Chimica, Civile ed Ambientale, Università degli Studi di Genova and INSTM Unit Genova, via all’Opera Pia 15A, 16145 Genoa, Italy
| | - Ilenia Rossetti
- Dip. Chimica, Università degli Studi di Milano, via C. Golgi 19, 20133 Milan, Italy
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Athithya S, Harish S, IKeda H, Shimomura M, Hayakawa Y, Archana J, Navaneethan M. Hierarchically ordered macroporous TiO 2 architecture via self-assembled strategy for environmental remediation. CHEMOSPHERE 2022; 288:132236. [PMID: 34649090 DOI: 10.1016/j.chemosphere.2021.132236] [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: 03/18/2021] [Revised: 09/01/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Hierarchical orderd macroporous TiO2 architecture (HOMTA) was prepared with aid of ethylenediamine (EDA) and investigated the impact of amine molecules on the properties of TiO2 architecture. The different variation of amine molecules (EDA) leads to tunning the morphology under hydrothermal approach which is confirmed by FESEM and TEM analysis. The XRD and Raman studies confirms the crystal structure of anatase and brookite phase of TiO2. The surface of the architecture strongly depended on the concentration of EDA which plays a vital role in surface area which is revealed by Brunauer Emmett-Teller (BET) analysis. The obtained HOMTA was employed as photocatalyst and active photoanode in the dye sensitized solar cells (DSSC). The DSSC device exhibits excellent efficiency (η) of 5.27% for the EDA capped TiO2 (S5) which had high surface area (167.11 m2/g) for better dye loading, whereas the lower concentration of EDA capped TiO2 (S1, S2, S3 and S4) resulted the efficiency of 2.14, 3.90, 3.25 and 4.37%, respectively. The efficiency of photocatlysis degradation of the prepared samples (S1, S2, S3, S4 and S5) was 94.8, 90.47, 91.41, 91.32 and 93.75% under light source. The excellent photocatalysis property was achieved by S5 within 6 min due to high surface area which inducing more active site.
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Affiliation(s)
- S Athithya
- Funtional Materials and Energy Devices, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603 203, Tamil Nadu, India
| | - S Harish
- Funtional Materials and Energy Devices, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603 203, Tamil Nadu, India
| | - H IKeda
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka, 432-8011, Japan; Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka, 432-8011, Japan
| | - M Shimomura
- Graduate School of Science and Technology, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka, 432-8011, Japan
| | - Y Hayakawa
- Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Naka-Ku, Hamamatsu, Shizuoka, 432-8011, Japan
| | - J Archana
- Funtional Materials and Energy Devices, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603 203, Tamil Nadu, India.
| | - M Navaneethan
- Funtional Materials and Energy Devices, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603 203, Tamil Nadu, India; Nanotechnology Research Center, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603 203, Tamil Nadu, India.
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29
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Zhang L, Zhang J, Sun H, Xia W, He J, Han J. Enhanced photocatalytic performance of carbon fiber paper supported TiO 2 under the ultrasonic synergy effect. RSC Adv 2022; 12:22922-22930. [PMID: 36105960 PMCID: PMC9377210 DOI: 10.1039/d2ra04240a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 08/05/2022] [Indexed: 11/25/2022] Open
Abstract
In the present work, TiO2 rutile nanorods and anatase nanoflakes have been grown on carbon fiber paper (CFP) by the hydrothermal method. Their photoelectrochemical properties and photocatalytic performances have been investigated. The introduction of CFP is found to improve visible light absorption intensity and effective surface areas apparently, and also make TiO2 photocatalysts easier to recycle from aqueous waste. An ultrasonic field was employed during the process of photocatalysis. Sono-photocatalytic efficiency is found to be enhanced significantly in comparison with those of photocatalysis and sonocatalysis, which indicates a positive ultrasonic synergy effect. The scavenger experiments reveal that superoxide radicals (˙O2−) and hydroxyl (˙OH) are the predominant active species during the dye degradation sono-photocatalytic process assisted by CFP-supported TiO2 catalysts. To investigate the ultrasonic synergy photocatalytic effect, the generated amount of reactive oxygen species (ROS) was detected and quantitatively evaluated under visible light, ultrasound, and the combined condition of visible light and ultrasound. As a result, the present work provides an efficient way to improve photocatalytic performance and to realize easy recovery of photocatalyst, which will be helpful for better design of advanced photocatalysts for practical applications. SEM images of TiO2(R) nanorods and TiO2(A) nanoflakes grown on CFP. And the corresponding catalytic performances under solely visible light, solely ultrasonic field, and the combined conditions of visible light and ultrasonic field.![]()
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Affiliation(s)
- Lei Zhang
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Jiahui Zhang
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Hui Sun
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing, 210093, P. R. China
| | - Weiwei Xia
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Junhui He
- School of Physics Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225002, P.R. China
| | - Jie Han
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China
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30
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Madhavi C, Ganja H, Kerru N, Maddila S, Jonnalagadda SB. Synthesis of a sustainable heterogeneous catalyst, titanium dioxide‐loaded hydroxyapatite for functionalised chromen‐dihydropyridines under green conditions. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Challa Madhavi
- Department of Chemistry, GITAM Institute of Sciences GITAM University Visakhapatnam India
| | - Himavathi Ganja
- Department of Chemistry, GITAM Institute of Sciences GITAM University Visakhapatnam India
| | - Nagaraju Kerru
- Department of Chemistry, GITAM School of Science GITAM University, Bengaluru Campus Doddaballapura India
| | - Suresh Maddila
- Department of Chemistry, GITAM Institute of Sciences GITAM University Visakhapatnam India
- School of Chemistry and Physics University of KwaZulu‐Natal, Westville Campus Durban South Africa
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31
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Murugadoss S, Mülhopt S, Diabaté S, Ghosh M, Paur HR, Stapf D, Weiss C, Hoet PH. Agglomeration State of Titanium-Dioxide (TiO 2) Nanomaterials Influences the Dose Deposition and Cytotoxic Responses in Human Bronchial Epithelial Cells at the Air-Liquid Interface. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:3226. [PMID: 34947575 PMCID: PMC8703437 DOI: 10.3390/nano11123226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/22/2021] [Accepted: 11/25/2021] [Indexed: 12/13/2022]
Abstract
Extensive production and use of nanomaterials (NMs), such as titanium dioxide (TiO2), raises concern regarding their potential adverse effects to humans. While considerable efforts have been made to assess the safety of TiO2 NMs using in vitro and in vivo studies, results obtained to date are unreliable, possibly due to the dynamic agglomeration behavior of TiO2 NMs. Moreover, agglomerates are of prime importance in occupational exposure scenarios, but their toxicological relevance remains poorly understood. Therefore, the aim of this study was to investigate the potential pulmonary effects induced by TiO2 agglomerates of different sizes at the air-liquid interface (ALI), which is more realistic in terms of inhalation exposure, and compare it to results previously obtained under submerged conditions. A nano-TiO2 (17 nm) and a non-nano TiO2 (117 nm) was selected for this study. Stable stock dispersions of small agglomerates and their respective larger counterparts of each TiO2 particles were prepared, and human bronchial epithelial (HBE) cells were exposed to different doses of aerosolized TiO2 agglomerates at the ALI. At the end of 4h exposure, cytotoxicity, glutathione depletion, and DNA damage were evaluated. Our results indicate that dose deposition and the toxic potential in HBE cells are influenced by agglomeration and exposure via the ALI induces different cellular responses than in submerged systems. We conclude that the agglomeration state is crucial in the assessment of pulmonary effects of NMs.
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Affiliation(s)
- Sivakumar Murugadoss
- Laboratory of Toxicology, Unit of Environment and Health, Department of Public Health and Primary Care, KU Leuven, 3000 Leuven, Belgium; (M.G.); (P.H.H.)
| | - Sonja Mülhopt
- Institute for Technical Chemistry, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany; (H.-R.P.); (D.S.)
| | - Silvia Diabaté
- Institute of Biological and Chemical Systems—Biological Information Processing, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany; (S.D.); (C.W.)
| | - Manosij Ghosh
- Laboratory of Toxicology, Unit of Environment and Health, Department of Public Health and Primary Care, KU Leuven, 3000 Leuven, Belgium; (M.G.); (P.H.H.)
| | - Hanns-Rudolf Paur
- Institute for Technical Chemistry, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany; (H.-R.P.); (D.S.)
| | - Dieter Stapf
- Institute for Technical Chemistry, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany; (H.-R.P.); (D.S.)
| | - Carsten Weiss
- Institute of Biological and Chemical Systems—Biological Information Processing, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany; (S.D.); (C.W.)
| | - Peter H. Hoet
- Laboratory of Toxicology, Unit of Environment and Health, Department of Public Health and Primary Care, KU Leuven, 3000 Leuven, Belgium; (M.G.); (P.H.H.)
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32
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Pantaleone S, Rimola A, Ugliengo P, Sodupe M. First-Principles Modeling of Protein/Surface Interactions. Polyglycine Secondary Structure Adsorption on the TiO 2 (101) Anatase Surface Adopting a Full Periodic Approach. J Chem Inf Model 2021; 61:5484-5498. [PMID: 34752107 DOI: 10.1021/acs.jcim.1c00689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Computational modeling of protein/surface systems is challenging since the conformational variations of the protein and its interactions with the surface need to be considered at once. Adoption of first-principles methods to this purpose is overwhelming and computationally extremely expensive so that, in many cases, dramatically simplified systems (e.g., small peptides or amino acids) are used at the expenses of modeling nonrealistic systems. In this work, we propose a cost-effective strategy for the modeling of peptide/surface interactions at a full quantum mechanical level, taking the adsorption of polyglycine on the TiO2 (101) anatase surface as a test case. Our approach is based on applying the periodic boundary conditions for both the surface model and the polyglycine peptide, giving rise to full periodic polyglycine/TiO2 surface systems. By proceeding this way, the considered complexes are modeled with a drastically reduced number of atoms compared with the finite-analogous systems, modeling the polypeptide structures at the same time in a realistic way. Within our modeling approach, full periodic density functional theory calculations (including implicit solvation effects) and ab initio molecular dynamics (AIMD) simulations at the PBE-D2* theory level have been carried out to investigate the adsorption and relative stability of the different polyglycine structures (i.e., extended primary, β-sheet, and α-helix) on the TiO2 surface. It has been found that, upon adsorption, secondary structures become partially denatured because the peptide C═O groups form Ti-O═C dative bonds. AIMD simulations have been fundamental to identify these phenomena because thermal and entropic effects are of paramount importance. Irrespective of the simulated environments (gas phase and implicit solvent), adsorption of the α-helix is more favorable than that of the β-sheet because in the former, more Ti-O═C bonds are formed and the adsorbed secondary structure results less distorted with respect to the isolated state. Under the implicit water solvent, additionally, adsorbed β-sheet structures weaken with respect to their isolated states as the H-bonds between the strands are longer due to solvation effects. Accordingly, the results indicate that the preferred conformation upon adsorption is the α-helix over the β-sheet.
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Affiliation(s)
- Stefano Pantaleone
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, Catalonia, Spain.,Dipartimento di Chimica and Nanostructured Interfaces and Surfaces (NIS) Inter-Departmental Centre, Università degli Studi di Torino, Via P. Giuria 7, Torino 10125, Italy.,Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, Perugia I-06123, Italy
| | - Albert Rimola
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, Catalonia, Spain
| | - Piero Ugliengo
- Dipartimento di Chimica and Nanostructured Interfaces and Surfaces (NIS) Inter-Departmental Centre, Università degli Studi di Torino, Via P. Giuria 7, Torino 10125, Italy
| | - Mariona Sodupe
- Departament de Química, Universitat Autònoma de Barcelona, Bellaterra 08193, Catalonia, Spain
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34
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Zhao W, Li Y, Shen W. Tuning the shape and crystal phase of TiO 2 nanoparticles for catalysis. Chem Commun (Camb) 2021; 57:6838-6850. [PMID: 34137748 DOI: 10.1039/d1cc01523k] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Synthesis of TiO2 nanoparticles with tunable shape and crystal phase has attracted considerable attention for the design of highly efficient heterogeneous catalysts. Tailoring the shape of TiO2, in the crystal phases of anatase, rutile, brookite and TiO2(B), allows tuning of the atomic configurations on the dominantly exposed facets for maximizing the active sites and regulating the reaction route towards a specific channel for achieving high selectivity. Moreover, the shape and crystal phase of TiO2 nanoparticles alter their interactions with metal species, which are commonly termed as strong metal-support interactions involving interfacial strain and charge transfer. On the other hand, metal particles, clusters and single atoms interact differently with TiO2, because of the variation of the electronic structure, while the surface of TiO2 determines the interfacial bonding via a geometric effect. The dynamic behavior of the metal-titania interfaces, driven by the chemisorption of the reactive molecules at elevated temperatures, also plays a decisive role in elaborating the structure-reactivity relationship.
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Affiliation(s)
- Wenning Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. and University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Wenjie Shen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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35
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Bunriw W, Harnchana V, Chanthad C, Huynh VN. Natural Rubber-TiO 2 Nanocomposite Film for Triboelectric Nanogenerator Application. Polymers (Basel) 2021; 13:2213. [PMID: 34279358 PMCID: PMC8271377 DOI: 10.3390/polym13132213] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022] Open
Abstract
In this research, natural rubber (NR)-TiO2 nanocomposites were developed for triboelectric nanogenerator (TENG) application to harvest mechanical energy into electrical energy. Rutile TiO2 nanoparticles were used as fillers in NR material to improve dielectric properties so as to enhance the energy conversion performance of the NR composite TENG. The effect of filler concentration on TENG performance of the NR-TiO2 composites was investigated. In addition, ball-milling method was employed to reduce the agglomeration of TiO2 nanoparticles in order to improve their dispersion in the NR film. It was found that the TENG performance was significantly enhanced due to the increased dielectric constant of the NR-TiO2 composite films fabricated from the ball-milled TiO2. The TENG, fabricated from the NR-TiO2 composite using 24 h ball-milled TiO2 at 0.5%wt, delivered the highest power density of 237 mW/m2, which was almost four times higher than that of pristine NR TENG. Furthermore, the applications of the fabricated NR-TiO2 TENG as a power source to operate portable electronics devices were also demonstrated.
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Affiliation(s)
- Weeraya Bunriw
- Materials Science and Nanotechnology Program, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Viyada Harnchana
- Department of Physics, Khon Kaen University, Khon Kaen 40002, Thailand
- Institute of Nanomaterials Research and Innovation for Energy (IN-RIE), NANOTEC-KKU RNN on Nanomaterials Research and Innovation for Energy, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chalathorn Chanthad
- National Nanotechnology Center (NANOTEC), NSTDA, 111 Thailand Science Park, Paholyothin Road, Klong Luang, Pathum Thani 12120, Thailand
| | - Van Ngoc Huynh
- DTU Bioengineering, Department of Biotechnology and Biomedicine, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
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36
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Socol M, Preda N. Hybrid Nanocomposite Thin Films for Photovoltaic Applications: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1117. [PMID: 33925952 PMCID: PMC8145415 DOI: 10.3390/nano11051117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/22/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023]
Abstract
Continuing growth in global energy consumption and the growing concerns regarding climate change and environmental pollution are the strongest drivers of renewable energy deployment. Solar energy is the most abundant and cleanest renewable energy source available. Nowadays, photovoltaic technologies can be regarded as viable pathways to provide sustainable energy generation, the achievement attained in designing nanomaterials with tunable properties and the progress made in the production processes having a major impact in their development. Solar cells involving hybrid nanocomposite layers have, lately, received extensive research attention due to the possibility to combine the advantages derived from the properties of both components: flexibility and processability from the organic part and stability and optoelectronics features from the inorganic part. Thus, this review provides a synopsis on hybrid solar cells developed in the last decade which involve composite layers deposited by spin-coating, the most used deposition method, and matrix-assisted pulsed laser evaporation, a relatively new deposition technique. The overview is focused on the hybrid nanocomposite films that can use conducting polymers and metal phthalocyanines as p-type materials, fullerene derivatives and non-fullerene compounds as n-type materials, and semiconductor nanostructures based on metal oxide, chalcogenides, and silicon. A survey regarding the influence of various factors on the hybrid solar cell efficiency is given in order to identify new strategies for enhancing the device performance in the upcoming years.
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Karakuş S, Albayrak İ, Üllen NB, Insel MA, Kilislioğlu A. Preparation, characterization and evaluation of a novel CMC/Chitosan-α-Fe2O3 nanoparticles-coated 17–4 PH stainless-steel foam. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-021-03700-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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TiO2-Graphene Quantum Dots Nanocomposites for Photocatalysis in Energy and Biomedical Applications. Catalysts 2021. [DOI: 10.3390/catal11030319] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The focus of current research in material science has shifted from “less efficient” single-component nanomaterials to the superior-performance, next-generation, multifunctional nanocomposites. TiO2 is a widely used benchmark photocatalyst with unique physicochemical properties. However, the large bandgap and massive recombination of photogenerated charge carriers limit its overall photocatalytic efficiency. When TiO2 nanoparticles are modified with graphene quantum dots (GQDs), some significant improvements can be achieved in terms of (i) broadening the light absorption wavelengths, (ii) design of active reaction sites, and (iii) control of the electron-hole (e−-h+) recombination. Accordingly, TiO2-GQDs nanocomposites exhibit promising multifunctionalities in a wide range of fields including, but not limited to, energy, biomedical aids, electronics, and flexible wearable sensors. This review presents some important aspects of TiO2-GQDs nanocomposites as photocatalysts in energy and biomedical applications. These include: (1) structural formulations and synthesis methods of TiO2-GQDs nanocomposites; (2) discourse about the mechanism behind the overall higher photoactivities of these nanocomposites; (3) various characterization techniques which can be used to judge the photocatalytic performance of these nanocomposites, and (4) the application of these nanocomposites in biomedical and energy conversion devices. Although some objectives have been achieved, new challenges still exist and hinder the widespread application of these nanocomposites. These challenges are briefly discussed in the Future Scope section of this review.
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Grey IE, Bordet P, Wilson NC. Structure of the amorphous titania precursor phase of N-doped photocatalysts. RSC Adv 2021; 11:8619-8627. [PMID: 35423361 PMCID: PMC8695186 DOI: 10.1039/d0ra08886b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 02/17/2021] [Indexed: 12/24/2022] Open
Abstract
Amorphous titania samples prepared by ammonia solution neutralization of titanyl sulphate have been characterized by chemical and thermal analyses, and with reciprocal-space and real-space fitting of wide-angle synchrotron X-ray scattering data. A model that fits both the chemical and structural data comprises small segments of lepidocrocite-type layer that are offset by corner-sharing as in the monoclinic titanic acids H2Ti n O2n+1·mH2O. The amorphous phase composition that best fits the combined chemical and scattering data is [(NH4)3H21Ti20O52]·14H2O, where the formula within the brackets is the cluster composition and the H2O outside the brackets is physically adsorbed. The NH4 + cations are an integral part of the clusters and are bonded to layer anions at the corners of the offset layers, as occurs in the alkali metal stepped-layer titanates. The stepped-layer model is shown to give a consistent mechanism for the reaction of aqueous ammonia with solid hydrated titanyl sulphate, in which the amorphous product retains the exact size and shape of the reacting titanyl sulphate crystals.
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Affiliation(s)
- I E Grey
- CSIRO Mineral Resources Private Bag 10 Clayton South Victoria 3169 Australia
| | - P Bordet
- Université Grenoble Alpes, CNRS, Institut Néel Grenoble 38000 France
| | - N C Wilson
- CSIRO Mineral Resources Private Bag 10 Clayton South Victoria 3169 Australia
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Majrik K, Pászti Z, Korecz L, Mihály J, May Z, Németh P, Cannilla C, Bonura G, Frusteri F, Tompos A, Tálas E. Effect of the Microstructure of the Semiconductor Support on the Photocatalytic Performance of the Pt-PtO x/TiO 2 Catalyst System. MATERIALS (BASEL, SWITZERLAND) 2021; 14:943. [PMID: 33671227 PMCID: PMC7921961 DOI: 10.3390/ma14040943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 02/08/2021] [Accepted: 02/14/2021] [Indexed: 11/16/2022]
Abstract
The influence of the semiconductor microstructure on the photocatalytic behavior of Pt-PtOx/TiO2 catalysts was studied by comparing the methanol-reforming performance of systems based on commercial P25 or TiO2 from sol-gel synthesis calcined at different temperatures. The Pt co-catalyst was deposited by incipient wetness and formed either by calcination or high-temperature H2 treatment. Structural features of the photocatalysts were established by X-ray powder diffraction (XRD), electron spin resonance (ESR), X-ray photoelectron spectroscopy (XPS), optical absorption, Raman spectroscopy and TEM measurements. In situ reduction of Pt during the photocatalytic reaction was generally observed. The P25-based samples showed the best H2 production, while the activity of all sol-gel-based samples was similar in spite of the varying microstructures resulting from the different preparation conditions. Accordingly, the sol-gel-based TiO2 has a fundamental structural feature interfering with its photocatalytic performance, which could not be improved by annealing in the 400-500 °C range even by scarifying specific surface area at higher temperatures.
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Affiliation(s)
- Katalin Majrik
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), H-1117 Budapest, Magyar Tudósok Körútja 2, Hungary; (K.M.); (L.K.); (J.M.); (Z.M.); (P.N.); (A.T.); (E.T.)
| | - Zoltán Pászti
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), H-1117 Budapest, Magyar Tudósok Körútja 2, Hungary; (K.M.); (L.K.); (J.M.); (Z.M.); (P.N.); (A.T.); (E.T.)
| | - László Korecz
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), H-1117 Budapest, Magyar Tudósok Körútja 2, Hungary; (K.M.); (L.K.); (J.M.); (Z.M.); (P.N.); (A.T.); (E.T.)
| | - Judith Mihály
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), H-1117 Budapest, Magyar Tudósok Körútja 2, Hungary; (K.M.); (L.K.); (J.M.); (Z.M.); (P.N.); (A.T.); (E.T.)
| | - Zoltán May
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), H-1117 Budapest, Magyar Tudósok Körútja 2, Hungary; (K.M.); (L.K.); (J.M.); (Z.M.); (P.N.); (A.T.); (E.T.)
| | - Péter Németh
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), H-1117 Budapest, Magyar Tudósok Körútja 2, Hungary; (K.M.); (L.K.); (J.M.); (Z.M.); (P.N.); (A.T.); (E.T.)
- Department of Earth and Environmental Sciences, University of Pannonia, H-8200 Veszprém, Egyetem út 10, Hungary
| | - Catia Cannilla
- National Council of Research–CNR-ITAE, ‘‘Nicola Giordano’’, Via S. Lucia 5, 98126 Messina, Italy; (C.C.); (G.B.); (F.F.)
| | - Giuseppe Bonura
- National Council of Research–CNR-ITAE, ‘‘Nicola Giordano’’, Via S. Lucia 5, 98126 Messina, Italy; (C.C.); (G.B.); (F.F.)
| | - Francesco Frusteri
- National Council of Research–CNR-ITAE, ‘‘Nicola Giordano’’, Via S. Lucia 5, 98126 Messina, Italy; (C.C.); (G.B.); (F.F.)
| | - András Tompos
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), H-1117 Budapest, Magyar Tudósok Körútja 2, Hungary; (K.M.); (L.K.); (J.M.); (Z.M.); (P.N.); (A.T.); (E.T.)
| | - Emília Tálas
- Research Centre for Natural Sciences, Institute of Materials and Environmental Chemistry, Eötvös Loránd Research Network (ELKH), H-1117 Budapest, Magyar Tudósok Körútja 2, Hungary; (K.M.); (L.K.); (J.M.); (Z.M.); (P.N.); (A.T.); (E.T.)
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Kumar M, Rani S, Singh Y, Gour KS, Singh VN. Tin-selenide as a futuristic material: properties and applications. RSC Adv 2021; 11:6477-6503. [PMID: 35423185 PMCID: PMC8694900 DOI: 10.1039/d0ra09807h] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 12/26/2020] [Indexed: 12/14/2022] Open
Abstract
SnSe/SnSe2 is a promising versatile material with applications in various fields like solar cells, photodetectors, memory devices, lithium and sodium-ion batteries, gas sensing, photocatalysis, supercapacitors, topological insulators, resistive switching devices due to its optimal band gap. In this review, all possible applications of SnSe/SnSe2 have been summarized. Some of the basic properties, as well as synthesis techniques have also been outlined. This review will help the researcher to understand the properties and possible applications of tin selenide-based materials. Thus, this will help in advancing the field of tin selenide-based materials for next generation technology.
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Affiliation(s)
- Manoj Kumar
- Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus Ghaziabad Uttar Pradesh 201002 India
- Indian Reference Materials (BND) Division, National Physical Laboratory, Council of Scientific and Industrial Research (CSIR) Dr K. S. Krishnan Road New Delhi 110012 India
| | - Sanju Rani
- Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus Ghaziabad Uttar Pradesh 201002 India
- Indian Reference Materials (BND) Division, National Physical Laboratory, Council of Scientific and Industrial Research (CSIR) Dr K. S. Krishnan Road New Delhi 110012 India
| | - Yogesh Singh
- Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus Ghaziabad Uttar Pradesh 201002 India
- Indian Reference Materials (BND) Division, National Physical Laboratory, Council of Scientific and Industrial Research (CSIR) Dr K. S. Krishnan Road New Delhi 110012 India
| | - Kuldeep Singh Gour
- Optoelectronics Convergence Research Center, Chonnam National University Gwangju 61186 Republic of Korea
| | - Vidya Nand Singh
- Academy of Scientific and Innovative Research (AcSIR), CSIR- Human Resource Development Centre, (CSIR-HRDC) Campus Ghaziabad Uttar Pradesh 201002 India
- Indian Reference Materials (BND) Division, National Physical Laboratory, Council of Scientific and Industrial Research (CSIR) Dr K. S. Krishnan Road New Delhi 110012 India
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Govardhana Reddy PV, Rajendra Prasad Reddy B, Venkata Krishna Reddy M, Raghava Reddy K, Shetti NP, Saleh TA, Aminabhavi TM. A review on multicomponent reactions catalysed by zero-dimensional/one-dimensional titanium dioxide (TiO 2) nanomaterials: Promising green methodologies in organic chemistry. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111603. [PMID: 33172705 DOI: 10.1016/j.jenvman.2020.111603] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/30/2020] [Accepted: 10/30/2020] [Indexed: 05/14/2023]
Abstract
Heterogeneous catalysis has currently become an emerging tool for the design and development of sustainable manufacturing processes in order to obtain advanced intermediates, fine chemicals, and bioactive molecules. This field has been considered efficient and eco-friendly, as it investigates the utilization of non-hazardous metals for atom-economical reactions. Nanomaterials have created a significant impact on scientific and engineering advancements due to their tunable properties with superior performance over their massive counterparts. Due to the increased demand for heterogeneous catalysts in industries and academia, different transition metal oxides have been made into substantial nanostructures. Among them, titanium dioxide (TiO2) nanomaterials have received more attention on account of their chemical stability, low cost, dual acid-base properties, good oxidation rate and refractive index. Different modifications of TiO2 extend their applications as active catalysts or catalyst supports in diverse catalytic processes, such as photovoltaics, lithium batteries, pigments and others. One-dimensional (1-D) TiO2 nanostructures such as nanotubes, nanowires and nanorods have achieved greater importance owing to the unique properties of improved porosity, decreased inter-crystalline contacts, large surface-to-volume ratio, superior dispersibility, amplified accessibility of hydroxyl (-OH) groups and presence of good concentrations of Brønsted/Lewis acid sites. Since the discovery, 1-D TiO2 nanostructures have served good photocatalytic applications, but were less explored in organic transformations. While many articles and reviews have covered the applications of 0-D and 1-D TiO2 nanostructured materials (NSMs) in photoelectrochemical reactions and solar cells, there are other interesting applications of these as well. In contrast to the conventional multi-step processes that utilise the stepwise formation of individual bonds, one-pot conversions based on multicomponent reactions (MCRs) have acquired much significance in contemporary organic synthesis. This paper presents a critical review on history, classification, design and synthetic utility of titania-based nanostructures, which could be used as robust solid-acid catalysts and catalyst supports for MCRs. Further, to put ideas into perspective, the introduction and applications of MCRs for various organic transformations have been discussed.
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Affiliation(s)
| | | | | | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Nagaraj P Shetti
- Center for Electrochemical Science & Materials, Department of Chemistry, K.L.E. Institute of Technology, Hubballi, 580 027, Karnataka, India
| | - Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia
| | - Tejraj M Aminabhavi
- Department of Pharmaceutics, SETs' College of Pharmacy, Dharwad, 580 007, Karnataka, India.
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Haspulat Taymaz B, Eskizeybek V, Kamış H. A novel polyaniline/NiO nanocomposite as a UV and visible-light photocatalyst for complete degradation of the model dyes and the real textile wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:6700-6718. [PMID: 33006103 DOI: 10.1007/s11356-020-10956-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/20/2020] [Indexed: 06/11/2023]
Abstract
The textile processing industry utilizes enormous amounts of water. After the dying process, the wastewater discharged to the environment contains carcinogens, non-biodegradable, toxic, and colored organic materials. This study aimed to develop a nanocomposite material with improved photocatalytic activity to degrade textile dyes and without a need for a post-separation process after the use. For this, nickel oxide nanoparticles (NiO NPs) were synthesized by a simple method in aqueous media. Then, NiO-doped polyaniline (PANI/NiO) with efficient absorption in the visible region (optical band gap of 2.08 eV) synthesized on a stainless steel substrate with electropolymerization of aniline in the aqueous media. The photocatalytic activity of PANI/NiO film was also investigated by the degradation of model dyes. Under UV and visible light irradiation, the PANI/NiO film degraded methylene blue and rhodamine B dyes entirely in 30 min. Moreover, the PANI/NiO film was also utilized to degrade real textile wastewater (RTW) without applying any pre-process; it was entirely decomposed by the nanocomposite film in only 45 min under UV light irradiation. The photocatalytic reaction rate of the pure PANI film is increased as 2.5 and 1.5 times with the addition of NiO NPs under UV and visible light irradiations for degradation RTW, respectively. The photocatalytic efficiency was attributed to reduced electron-hole pair recombination on the photocatalyst surface. Furthermore, the photocatalytic stability is discussed based on re-use experiments. The photocatalytic performance remains nearly unchanged, and the degradation of dyes is kept 94% after five cycles.
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Affiliation(s)
| | - Volkan Eskizeybek
- Department of Materials Science and Engineering, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Handan Kamış
- Department of Chemical Engineering, Konya Technical University, Konya, Turkey.
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Abbas Q, Yousaf B, Mujtaba Munir MA, Cheema AI, Hussain I, Rinklebe J. Biochar-mediated transformation of titanium dioxide nanoparticles concerning TiO 2NPs-biochar interactions, plant traits and tissue accumulation to cell translocation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 270:116077. [PMID: 33338960 DOI: 10.1016/j.envpol.2020.116077] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/10/2020] [Accepted: 11/11/2020] [Indexed: 06/12/2023]
Abstract
Titanium dioxide nanoparticles (TiO2NPs) application in variety of commercial products would likely release these NPs into the environment. The interaction of TiO2NPs with terrestrial plants upon uptake can disturb plants functional traits and can also transfer to the food chain members. In this study, we investigated the impact of TiO2NPs on wheat (Triticum aestivum L.) plants functional traits, primary macronutrients assimilation, and change in the profile of bio-macromolecule. Moreover, the mechanism of biochar-TiO2NPs interaction, immobilization, and tissue accumulation to cell translocation of NPs in plants was also explored. The results indicated that the contents of Ti in wheat tissues was reduced about 3-fold and the Ti transfer rate (per day) was reduced about 2 fold at the 1000 mg L-1 exposure level of TiO2NPs in biochar amended exposure medium. Transmission electron microscopy (TEM) with elemental mapping confirmed that Ti concentrated in plant tissues in nano-form. The interactive effect of TiO2NPs + biochar amendment on photosynthesis related and gas exchange traits was observed at relatively low TiO2NPs exposure level (200 mg L-1), which induced the positive impact on wheat plants proliferation. TiO2NPs alone exposure to wheat also modified the plant's bio-macromolecules profile with the reduction in the assimilation of primary macronutrients, which could affect the food crop nutritional value and quality. X-ray photoelectron spectroscopy (XPS) chemical analysis of biochar + TiO2NPs showed an additional peak, which indicated the binding interaction of NPs with biochar. Moreover, Fourier-transform infrared (FTIR) spectroscopy confirmed that the biochar carboxyl group is the main functionality involved in the bonding process with TiO2NPs. These findings will help for a mechanistic understanding of the role of biochar in the reduction of NPs bioavailability to primary producers of the terrestrial environment.
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Affiliation(s)
- Qumber Abbas
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; Environmental Engineering Department, Middle East Technical University, Ankara, 06800, Turkey
| | - Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; Environmental Engineering Department, Middle East Technical University, Ankara, 06800, Turkey.
| | - Mehr Ahmed Mujtaba Munir
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Ayesha Imtiyaz Cheema
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China
| | - Imran Hussain
- CAS Key Laboratory of Soil Environment and Pollution Remediation Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, PR China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Seoul, Republic of Korea
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Alothman ZA, Badjah AY, Alharbi OML, Ali I. Cobalt doping of titanium oxide nanoparticles for atenolol photodegradation in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:7423-7430. [PMID: 33030688 DOI: 10.1007/s11356-020-11071-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Cobalt-doped TiO2 nanoparticles were prepared and characterized by FT-IR, TEM, SEM, and XRD. The surface morphology was sphere-shaped with ~ 26.46 nm of the size of the nanoparticles. Ninety percent atenolol photodegradation was obtained with 15 mg/L concentration, 40 min stirring time, 2 pH, 2.0 g/L dosage of nanoparticles, 200.0 nm irradiation UV wavelength, and hydrogen peroxide amount 2.0 mL/L at 30 °C temp. Atenolol photodegradation conformed the first-order kinetics with a mechanism comprising atenolol sorption on the doped TiO2 nanoparticles and its degradation in UV irradiation. Hole (h+) and electron (e-) pairs are produced by doped TiO2 nanoparticles, creating hydroxyl free radicals and superoxide oxygen anions. These species break down atenolol.
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Affiliation(s)
- Zeid A Alothman
- Chemistry Department, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia.
| | - Ahmad Yacine Badjah
- Chemistry Department, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Omar M L Alharbi
- Department of Biology, Faculty of Sciences, Taibah University, Al-Medina Al-Munawara, 41477, Saudi Arabia
| | - Imran Ali
- Chemistry Department, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia.
- Department of Biology, Faculty of Sciences, Taibah University, Al-Medina Al-Munawara, 41477, Saudi Arabia.
- Department of Chemistry, College of Sciences, Taibah University, Al-Medina Al-Munawara, 41477, Saudi Arabia.
- Department of Chemistry, Jamia Millia Islamia (Central University) New Delhi, New Delhi, India.
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Kajli SK, Ray D, Roy SC. Morphology dependent electrical conduction and breakdown in single TiO 2 nanotubes. NANOSCALE ADVANCES 2021; 3:432-445. [PMID: 36131744 PMCID: PMC9418499 DOI: 10.1039/d0na00713g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/23/2020] [Indexed: 06/15/2023]
Abstract
Understanding the electrical conduction properties of a single nanostructure is essential for gaining insight into the fundamental charge transport through 1D materials and also for exploring the collective behavior of an array of such nanostructures. TiO2 nanostructures, such as electrochemically grown nanotubes, have been widely studied in recent times for several applications. The electrolyte plays a vital role in deciding the morphology, which, in turn, governs the charge transport behavior. Here we present a comparative study of the charge transport through a single TiO2 nanotube grown by electrochemical anodization using ethylene glycol and dimethyl sulphoxide electrolytes. The individual nanotubes are assembled into nanodevices using photolithography without relying on complex and sophisticated process like electron beam lithography or focused ion beam deposition. The electric field dependent charge transport properties show Schottky emission at a lower field regime and Poole-Frenkel emission in the higher region. The temperature-dependent electrical conduction (110 K-410 K) is mediated by two thermal activation processes, attributed to shallow impurities in the low-temperature range (T < 230 K) and to the donors at deep intermediate levels at higher temperatures (T > 230 K). The activation energies for EG based nanotubes are found to be higher than those for DMSO nanotubes owing to the double wall morphology of the formed tubes. Also, the study of the electrical breakdown phenomena of these nanotubes reveals three distinct categories of collapse. 'Model A' type breakdown is characterized by a stepwise rise of the current up to the breakdown point and a fall to zero following a non-uniform step by step decrease, which is driven by crack formation near the electrode interface and its propagation. 'Model B' shows a transient rise and fall in current, leading to breakdown due to electromigration, whereas 'Model C' type breakdown observed in a bundle of nanotubes shows a mixed trend of 'Model A' and 'Model B'. The data and analysis provide insight into the current limit through an individual nanotube or bundle of nanotubes and will be useful for designing prototype nanodevices from titania nanostructures.
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Affiliation(s)
- Sourav Kumar Kajli
- Department of Physics, Indian Institute of Technology Madras Chennai Tamilnadu 600036 India
| | - Debdutta Ray
- Department of Electrical Engineering, Indian Institute of Technology Madras Chennai Tamilnadu 600036 India
| | - Somnath C Roy
- Department of Physics, Indian Institute of Technology Madras Chennai Tamilnadu 600036 India
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Silver-Deposited Nanoparticles on the Titanium Nanotubes Surface as a Promising Antibacterial Material into Implants. METALS 2021. [DOI: 10.3390/met11010092] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The main disadvantage of the implants is the associated infections. Therefore, in the long term, the possibility of improving the antibacterial capacity of different types of implants (dental, orthopedic) is being researched. The severity of the problem lies in the increasing bacterial resistance and finding appropriate alternative treatments for infectious diseases, which is an important research field nowadays. The purpose of this review is to draw a parallel between different studies analyzing the antibacterial activity and mechanism of silver nanoparticles (NP Ag) deposited on the titanium nanotubes (NTT), as well as the analysis of the NP Ag toxicity. This review also provides an overview of the synthesis and characterization of TiO2-derived nanotubes (NT). Thus, the analysis aims to present the existing knowledge to better understand the NP Ag implants benefits and their antibacterial activity.
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Songtawee S, Rungtaweevoranit B, Klaysom C, Faungnawakij K. Tuning Brønsted and Lewis acidity on phosphated titanium dioxides for efficient conversion of glucose to 5-hydroxymethylfurfural. RSC Adv 2021; 11:29196-29206. [PMID: 35479552 PMCID: PMC9040646 DOI: 10.1039/d1ra06002c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 08/24/2021] [Indexed: 11/21/2022] Open
Abstract
5-Hydroxymethylfurfural (HMF) derived from cellulosic sugars has become increasingly important as a platform chemical for the biorefinery industry because of its versatility in the conversion to other chemicals. Although HMF can be produced in high yield from fructose dehydration, fructose is rather expensive because it requires multiple processing steps. On the other hand, HMF can be produced directly from highly abundant glucose, which could reduce time and cost. However, an effective and multifunctional catalyst is needed to selectively promote the glucose-to-HMF reaction. In this work, we report a bifunctional phosphated titanium dioxide as an efficient catalyst for such a reaction. The best catalyst exhibits excellent catalytic performance for the glucose conversion to HMF with 72% yield and 83% selectivity in the biphasic system. We achieve this by tuning the solvent system, controlling the amount of Brønsted and Lewis acid sites on the catalyst, and modification of the reaction setup. From the analysis of acid sites, we found that the addition of phosphate group (Brønsted acid site) onto the surface of TiO2 (Lewis acid site) significantly enhanced the HMF yield and selectivity when the optimum ratio of Brønsted and Lewis acid sites is reached. The high catalytic activity, good reusability, and simple preparation method of the catalyst show a promise for the potential use of this catalytic system on an industrial scale. Tunable Lewis and Brønsted acid sites on P–TiO2 tandem catalysts for glucose-to-HMF conversion providing high HMF yield (72%) and selectivity (83%).![]()
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Affiliation(s)
- Siripit Songtawee
- NanoCatalysis and Molecular Simulation Research Group, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathumthani 12120, Thailand
- Center of Excellence in Particle and Material Processing Technology, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
| | - Bunyarat Rungtaweevoranit
- NanoCatalysis and Molecular Simulation Research Group, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathumthani 12120, Thailand
| | - Chalida Klaysom
- Center of Excellence in Particle and Material Processing Technology, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
- Bio-Circular-Green Economy Technology & Engineering Center (BCGeTEC), Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, Thailand
| | - Kajornsak Faungnawakij
- NanoCatalysis and Molecular Simulation Research Group, National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathumthani 12120, Thailand
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Toxicological Consequences of Titanium Dioxide Nanoparticles (TiO 2NPs) and Their Jeopardy to Human Population. BIONANOSCIENCE 2021; 11:621-632. [PMID: 33520589 PMCID: PMC7835448 DOI: 10.1007/s12668-021-00836-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2021] [Indexed: 01/31/2023]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are the most produced nanomaterial for food additives, pigments, photocatalysis, and personal care products. These nanomaterials are at the forefront of rapidly developing indispensable nanotechnology. In all these nanomaterials, titanium dioxide (TiO2) is the most common nanomaterial which is being synthesized for many years. These nanoparticles of TiO2 are widely used at the commercial level, especially in cosmetic industries. High usage in such a way has increased the toxicological consequences of the human population. Several studies have shown that TiO2 NPs accumulated after oral exposure or inhalation in the alimentary canal, lungs, heart, liver, spleen, cardiac muscle, and kidneys. Additionally, in mice and rats, they disturb glucose and lipid homeostasis. Moreover, TiO2 nanoparticles primarily cause adverse reactions by inducing oxidative stress that leads to cell damage, inflammation, genotoxicity, and adverse immune responses. The form and level of destruction are strongly based on the physical and chemical properties of TiO2 nanoparticles, which administer their reactivity and bioavailability. Studies give indications that TiO2 NPs cause both DNA strand breaks and chromosomal damages. The effects of genotoxicity do not depend only on particle surface changes, size, and exposure route, but also relies on the duration of exposure. Most of these effects may be because of a very high dose of TiO2 NPs. Despite increased production and use, epidemiological data for TiO2 NPs is still missing. This review discusses previous research regarding the impact of TiO2 NP toxicity on human health and highlights areas that require further understanding in concern of jeopardy to the human population. This review is important to point out areas where extensive research is needed; thus, their possible impact on individual health should be investigated in more details.
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Hosseini-Sarvari M, Valikhani A. Boron-doped TiO 2 (B-TiO 2): visible-light photocatalytic difunctionalization of alkenes and alkynes. NEW J CHEM 2021. [DOI: 10.1039/d1nj01752g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Boron-doped TiO2 (B-TiO2) was prepared, characterized, and applied as a reusable, inexpensive, and available heterogeneous nanophotocatalyst under visible light for the synthesis of phenacyl thiocyanates.
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Affiliation(s)
- Mona Hosseini-Sarvari
- Department of Chemistry
- Nano Photocatalysis Lab
- Shiraz University
- Shiraz 7194684795
- Iran
| | - Atefe Valikhani
- Department of Chemistry
- Nano Photocatalysis Lab
- Shiraz University
- Shiraz 7194684795
- Iran
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