Surface modification of blue TiO2 with silane coupling agent for NOx abatement

Martinez-Oviedo, Adriana; Kshetri, Yuwaraj K.; Joshi, Bhupendra

doi:10.1016/j.pnsc.2021.02.001

Cited by 13 publications

(7 citation statements)

References 42 publications

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“…Incorporating silicon into the titanium dioxide surface would increase the specific surface area, reduce the particle size, and hinder the anatase-to-rutile phase transition [ 13 , 14 ], while modification with C and N would commonly improve the photocatalysts’ efficiency in sunlight [ 15 , 16 ]. The most recent method involves using organosilane coupling agents to modify the surface of TiO 2 [ 17 , 18 ]. One of them is 3-aminopropyltriethoxysilane (APTES), which contains one aminopropyl and three ethoxy functional groups attached to the central Si atom [ 12 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

et al. 2022

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A visible-light photocatalytic performance of 3-aminopropyltriethoxysilane (APTES)-modified TiO2 nanomaterials obtained by solvothermal modification under elevated pressure, followed by calcination in an argon atmosphere at 800–1000 °C, is presented for the first time. The presence of silicon and carbon in the APTES/TiO2 photocatalysts contributed to the effective delay of the anatase-to-rutile phase transformation and the growth of the crystallites size of both polymorphous forms of TiO2 during heating. Thus, the calcined APTES-modified TiO2 exhibited higher pore volume and specific surface area compared with the reference materials. The change of TiO2 surface charge from positive to negative after the heat treatment increased the adsorption of the methylene blue compound. Consequently, due to the blocking of active sites on the TiO2 surface, the adsorption process negatively affected the photocatalytic properties. All calcined photocatalysts obtained after modification via APTES showed a higher dye decomposition degree than the reference samples. For all 3 modifier concentrations tested, the best photoactivity was noted for nanomaterials calcined at 900 °C due to a higher specific surface area than materials calcined at 1000 °C, and a larger number of active sites available on the TiO2 surface compared with samples annealed at 800 °C. It was found that the optimum concentration for TiO2 modification, at which the highest dye decomposition degree was noted, was 500 mM.

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Section: Introductionmentioning

confidence: 99%

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

et al. 2022

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“…Additionally, a new absorption peak corresponding to Si−O−Ti was observed at 1045 cm −1 . 34 These findings provide evidence for the successful modification of TiO 2 through VTES.…”

Section: Resultsmentioning

confidence: 66%

“…Notably, the V–TiO 2 material displayed the presence of related peaks such as CC, vinyl CH 2 , Si–O, and Si–C. Additionally, a new absorption peak corresponding to Si–O–Ti was observed at 1045 cm –1 . These findings provide evidence for the successful modification of TiO 2 through VTES.…”

Section: Resultsmentioning

confidence: 69%

TiO₂/Polystyrene Nanocomposite Antibacterial Material as a Hemoperfusion Adsorbent for Efficient Bilirubin Removal and Prevention of Bacterial Infection

Du,

Chen,

Wang

et al. 2024

ACS Biomater. Sci. Eng.

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The use of hemoperfusion adsorbents for the removal of bilirubin in patients with liver failure has become a critical treatment. However, the insufficient clearance of bilirubin and the possibility of bacterial infection during hemoperfusion limit the application. In this work, we designed a novel antibacterial bilirubin adsorbent (PSVT) through the suspension polymerization reaction between double-bond functionalized TiO 2 nanoparticles and styrene. PSVT showed an excellent bilirubin adsorption ability and antibacterial performance, ensuring efficient clearance of bilirubin in liver failure patients during hemoperfusion and preventing bacterial infection. The experimental results indicated that TiO 2 was uniformly dispersed in the microspheres, which improved the mesoporous structure and increased the specific surface area. Composite adsorbent PSVT showed an exceptional bilirubin adsorption capacity, with the maximum adsorption capacity reaching 24.3 mg/g. In addition, the introduction of TiO 2 endowed PSVT with excellent antibacterial ability; the ultimate antibacterial rates against Escherichia coli and Staphylococcus aureus reached 97.31 and 96.47%, respectively. In summary, PSVT served as a novel antibacterial bilirubin adsorbent with excellent bilirubin clearance capacity and antibacterial performance, providing excellent application prospects for treating liver failure patients.

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“…Moreover, the preparation of TiO 2 @CNOs was further demonstrated by the FT-IR spectrum in Figure D. The absorption band at about 539 cm –1 is attributed to the characteristic Ti–O stretching vibration, while those at 1604 and 3414 cm –1 are assigned to the O–H vibration of water absorption at the surface of TiO 2 , , indicating that the synthesized TiO 2 nanoparticles were attached to the surface of CNOs.…”

Section: Resultsmentioning

confidence: 89%

Designing Multimodal Informative Sensing with an Exosome-Mediated Signal Coupling Transduction Strategy Based on a Single-Stimulus Multiresponse Recognition Interface

Huang,

Zhang,

Chen

et al. 2023

Anal. Chem.

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Given that exosomes released from cancer cells carry various tumor-specific proteins on their surface, they have emerged as a source of biomarkers for cancer diagnosis. However, developing accurate and reliable assays to detect exosomes in the early stages of disease with low abundance and complex systems remains challenging. Here, the prepared PDIG film has the ability to sense multiple signals from a single stimulus, in which the presence of cobalt(II) chloride and deep eutectic solvents (DES) endows PDIG with thermochromic and thermosensitive properties. Concretely, the PDIG served as the recognition interface in series with a bipolar electrode (BPE) that exhibits a highly sensitive color and conductivity response to temperature stimuli triggered by the light-harvesting probe TiO 2 @CNOs introduced via proximity hybridization assay triggering a rolling circle amplification strategy, resulting in the output of colorimetric, photoacoustic, and electrochemiluminescent signals for the detection of colorectal cancer exosomes. This work is expected to provide a new direction for exploring the multisignal amplification strategy of BPE, broaden the application of BPE in biological analysis, and provide new insights for developing highly informationsensing elements to ensure the multimodal coupling for cancer-specific exosome detection.

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Surface modification of blue TiO2 with silane coupling agent for NOx abatement

Cited by 13 publications

References 42 publications

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

TiO₂/Polystyrene Nanocomposite Antibacterial Material as a Hemoperfusion Adsorbent for Efficient Bilirubin Removal and Prevention of Bacterial Infection

Designing Multimodal Informative Sensing with an Exosome-Mediated Signal Coupling Transduction Strategy Based on a Single-Stimulus Multiresponse Recognition Interface

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Surface modification of blue TiO2 with silane coupling agent for NOx abatement

Cited by 13 publications

References 42 publications

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

Artificial Solar Light-Driven APTES/TiO2 Photocatalysts for Methylene Blue Removal from Water

TiO2/Polystyrene Nanocomposite Antibacterial Material as a Hemoperfusion Adsorbent for Efficient Bilirubin Removal and Prevention of Bacterial Infection

Designing Multimodal Informative Sensing with an Exosome-Mediated Signal Coupling Transduction Strategy Based on a Single-Stimulus Multiresponse Recognition Interface

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TiO₂/Polystyrene Nanocomposite Antibacterial Material as a Hemoperfusion Adsorbent for Efficient Bilirubin Removal and Prevention of Bacterial Infection