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TiO2 doped
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In this work, TiO2-doped carbon aerogel (TiO2/CA) was synthesized from sugarcane bagasse hydrothermal, freezedrying, and carbonization methods. The effects of the calcination temperatures of 400, 500, 600, 700, and 800 oC were also evaluated. The obtained TiO2/CA exhibits an ultralow density (0.021-0.032 g/cm3 ) and porosity of more than 97 %. The asprepared TiO2/CA was applied in photodegradation of methylene blue (MB) with the effects of dose sample and pH were also investigated.
11p
dianmotminh02
03-05-2024
2
1
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Ebook "Photocatalytic activity enhancement of titanium dioxide nanoparticles: Degradation of pollutants in wastewater" covered include a detailed look at the unique properties of the TiO2 nanoparticles and their relationship to photocatalytic properties. The utilization of the TiO2 nanoparticles as photocatalysts, in the non-doped and doped forms is also reviewed. Finally, the use of modified TiO2 nanoparticles has made a significant contribution in providing definitive mechanistic information regarding the visible light photocatalytic processes.
39p
tracanhphuonghoa1007
22-04-2024
3
3
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In this study, we successfully synthesized europium-doped TiO2 (TiO2 :Eu3+) nanomaterials (NMs) with crystalline sizes ranging from 6.5 to 71.7 nm through a sol-gel method. Analysis of X-ray diffraction (XRD) patterns and ultraviolet-visible (UV-Vis) spectra indicates that the substitution of smaller-sized Ti4+ ions (0.745 Å) by largersized Eu3+ ions (0.947 Å) was more efficient at higher doping concentrations and annealing temperatures.
6p
viellison
28-03-2024
3
1
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Inheriting those results, in this work, TiO2 was prepared from ilmenite ore by using sulfuric acid method, and then TiO2 modified C, N, and S was synthesized, investigated the activity, and it was used to study the photodegradation of tetracycline antibiotics in water solution under visible light and sunlight.
7p
vimichaelfaraday
28-12-2023
6
4
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The proportional relationship between the infrared (IR) transmittance of a transparent material and its IR-induced heat transfer can be explained via a simple model. An agreement between the theory and the experimental work was examined by measuring the temperature rising inside a heat-insulated box with glass windows under IR irradiation, where the material of the glass windows was modified from corning glass (CG) to 9 at% Nb-doped TiO2 (TNO) fabricated by sputtering deposition.
6p
viberbers
09-08-2023
4
3
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N-doped TiO2 nanomaterials were prepared with the sol-gel method. The structure and properties of the materials were characterized by using XRD, UV-Vis, SEM, EDX, and IR techniques. The optimal amount of ammonium chloride in the mixture for doping is 600 mg. The optical absorption edge of N-TiO2 displays a redshift, and a long tail occurs in the presence of nitrogen in the material.
6p
vispiderman
15-06-2023
4
2
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The Cu/TiO2 nanoparticles were characterized using X-ray diffraction, transmission electron microscopy (TEM) and diffuse reflectance spectra (DRS). The photo-catalytic degradation of rhodamine B (RB) in the aqueous suspensions of TiO2 and Cu/TiO2 under visible light was carried out.
5p
vidoctorstrange
06-05-2023
5
4
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Considering its superior photocatalytic activity and excellent chemical stability, titanium dioxide (TiO2 ) is an excellent candidate for photoelectrochemical (PEC) hydrogen production. Besides, many challenges exist ahead of improving the photoresponse of TiO2 to visible light while maintaining high photocatalytic activity.
6p
vicedric
08-02-2023
3
1
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Access to clean drinking water is limited for millions around the world and lead to dire health and economic ramifications, particularly in developing nations. This study explores a recyclable, low-cost, non-doped, microporous titanosilicate for effective removal of organic water pollutants.
9p
vironald
15-12-2022
7
3
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TiO2 and Fe-doped TiO2 nanoparticles were prepared by hydrothermal method in order to study the effect of ion doping (Fe) on enhancing photocatalytic activity of TiO2. The band gap, morphology and specific surface area of TiO2 and Fe-doped TiO2 were investigated by step-wise increasing Fe3+ concentrations from 0.05 to 1.00 wt.%.
9p
vistephenhawking
26-04-2022
9
2
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In this study, toxic effects caused by the degradation of fluoxastrobin, which is a commonly used fungicide where newly synthesized manganese or sulfur-doped TiO2 nanoparticles exist were evaluated. The characterization study of nanoparticles was performed by scanning an electron microscopy (SEM), X-ray diffractometry, Brunau–Emmet–Teller analysis, X-ray fluorescence spectroscopy, and UV–Vis (ultraviolet–visible) reflectance spectra.
14p
dolomite36
30-12-2021
10
1
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This study aimed to develop a photocatalyst that responds to visible light. For the preparation of visible light sensitive photocatalysts, N was doped into TiO2(N-TiO2). To inhibit the recombination of excited electrons and holes, transition metals (M = Pt, Cu, Fe, Cr) were loaded on the N-TiO2. N-TiO2 nanotubes were also synthesized by a hydrothermal treatment of the prepared N-TiO2 in a strong basic environment.
10p
langthannam
29-12-2021
8
1
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In this work, boron-doped CQDs (B-CQDs) were synthesized by using boric acid, urea, and citric acid via hydrothermal method to use as a novel additive material for poly(3-hexylthiophene-2,5-diyl) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) based organic solar cells. The OSCs with an inverted device structure were fabricated on titanium dioxide (TiO2 ) thin film. It was showed the crystallinity, morphological and optical properties of P3HT:PCBM films improved after B-CQDs additive. The best performance was obtained to be a 39.65% of FF, a 546 mV of Voc, an 8.
13p
langthannam
29-12-2021
9
0
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The reflux method was utilized for the synthesis of 5% Sn-doped TiO2 nanopowder. Surfaces of the TiO2 particles were modified with 3-glycidoxypropyltrimethoxysilane (glymo) and glass surfaces were coated with this solution by a spin-coating process. Molar ratios of TiO2:glymo were 0.25, 0.5, 2.5, and 7.5 in the films. Nanocomposite films were cured at 130 ◦ C. Adhesions of the obtained films were classified as 5B and pencil hardness increased with the increase in the ratio of the TiO2 in the films. Film thickness decreased from 5 µm to 0.3 µm when TiO2:glymo was increased from 0.25 to 7.5.
10p
tudichquannguyet
29-11-2021
11
1
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In the present work TiO2 nanotubes (TNT) have been synthesized by alkaline hydrothermal transformation. Then they have been doped with Gd element. Characterizations of doped and undoped TNT have been done with TEM and SEM. The chemical composition was analyzed by EDX, Raman and FTIR spectroscopy. The crystal structure was characterized by XRD. Carbon paste electrode has been fabricated and mixed with Gd doped and undoped TNT to form a nanocomposite working electrode. Comparison of bare carbon paste electrode and Gd doped and undoped TNT carbon paste electrode for 1.
12p
tudichquannguyet
29-11-2021
16
0
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In the past years there has been a great interest in self-doped TiO2 nanotubes (blue TiO2 nanotubes) compared to undoped ones owing to their high carrier density and conductivity. In this study, blue TiO2 nanotubes are investigated as photoanode materials for photoelectrochemical water splitting. Blue TiO2 nanotubes were fabricated with enhanced photoresponse behavior through electrochemical cathodic polarization on undoped and annealed TiO2 nanotubes.
13p
tudichquannguyet
29-11-2021
10
0
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Pristine and WO3 decorated TiO2 nanorods (NRs) were synthesised to investigate n-n-type heterojunction gas sensing properties. TiO2 NRs were fabricated via hydrothermal method on fluorine-doped tin oxide coated glass (FTO) substrates. Then, tungsten was sputtered on the TiO2 NRs and thermally oxidised to obtain WO3 nanoparticles. The heterostructure was characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectroscopy.
12p
tudichquannguyet
29-11-2021
6
1
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To decrease the band gap of TiO2 and enhance its photocatalytic performance, in this work, N-doped nanocrystalline TiO2 is synthesized successfully through a simple sol-gel synthesis process with dicyandiamide used as N source. The N-doped TiO2 photocatalysts have been characterized in detail by means of powder X-ray diffraction, Raman spectroscopy, infrared spectroscopy, UV-vis spectroscopy, X-ray photoelectron spectroscopy, and scanning electron microscope. The photocatalytic activities of N-doped TiO2 to different organic pollutants are significantly different.
10p
tudichquannguyet
29-11-2021
8
1
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Mục tiêu của Luận án là chế tạo vật liệu nano tổ hợp trên nền TiO2 có cấu trúc nano sợi, được chế tạo bằng phương pháp phun tĩnh điện, dùng làm điện cực quang trong mô hình PEC. Điện cực có độ bền hóa học cao, đồng đều, đặc tính bề mặt tốt, có độ bám dính tốt trên đế điện cực ITO (Tin-doped indium oxide) và cho hiệu suất quang tách nước cao trong vùng ánh sáng khả kiến. Mời các bạn cùng tham khảo!
136p
armyofthedead
23-06-2021
39
7
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Mục đích nghiên cứu của Luận án này nhằm đóng góp cho việc tổng hợp các vật liệu xúc tác tiên tiến mới có thể thay thế xúc tác truyền thống trong pin nhiên liệu hoạt động ở nhiệt độ thấp. Mời các bạn cùng tham khảo!
26p
extraenglish
26-05-2021
10
2
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