Fabrication of sustainable and multifunctional TiO2@carbon nanotube nanocomposite fibers

Yoon, Chul-Jun; Lee, Sung-Hyun; Kwon, Yoo-Bin; Kim, Kyoung-Soo; Lee, Kun‐Hong; Kim, Seung Min; Kim, Young‐Kwan

doi:10.1016/j.apsusc.2020.148332

Cited by 20 publications

(5 citation statements)

References 27 publications

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“…It was previously reported that the surface of CNT fibers was partially oxidized because they were synthesized in a vertical CVD reactor with an open atmosphere. 22 By urushiol infiltration, the peak of O–H stretching vibration was enhanced, and several new peaks appeared at 1710 and 1382 cm −1 which originated from the CO stretching vibration and C–O–H bending vibration, respectively (Fig. 5f).…”

Section: Resultsmentioning

confidence: 97%

Simultaneous reinforcement of the electrical and mechanical properties of carbon nanotube fibers by using a natural cross-linkable thermosetting polymer

et al. 2022

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Section: Resultsmentioning

confidence: 97%

Simultaneous reinforcement of the electrical and mechanical properties of carbon nanotube fibers by using a natural cross-linkable thermosetting polymer

et al. 2022

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“…The efficiency of the prepared composite (AC-TiO 2 ) was compared with other reported carbon-modified TiO 2 based photocatalysts [ 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 ] ( Table 2 ). The data were compared under different optimization conditions, and the comparison study gave the efficiency of the materials at specific reaction conditions.…”

Section: Resultsmentioning

confidence: 99%

Design and Preparation of Biomass-Derived Activated Carbon Loaded TiO2 Photocatalyst for Photocatalytic Degradation of Reactive Red 120 and Ofloxacin

et al. 2022

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The design and development of novel photocatalysts for treating toxic substances such as industrial waste, dyes, pesticides, and pharmaceutical wastes remain a challenging task even today. To this end, a biowaste pistachio-shell-derived activated carbon (AC) loaded TiO2 (AC-TiO2) nanocomposite was fabricated and effectively utilized towards the photocatalytic degradation of toxic azo dye Reactive Red 120 (RR 120) and ofloxacin (OFL) under UV-A light. The synthesized materials were characterized for their structural and surface morphology features through various spectroscopic and microscopic techniques, including high-resolution transmission electron microscope (HR-TEM), field emission scanning electron microscope (FE-SEM) along with energy dispersive spectra (EDS), diffuse reflectance spectra (DRS), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, photoluminescence spectra (PL) and BET surface area measurements. AC-TiO2 shows enhanced photocatalytic activity compared to bare TiO2 due to the change in the bandgap energy and effective charge separation. The degradation rate of dyes was affected by the bandgap of the semiconductor, which was the result of the deposition weight percentage of AC onto the TiO2. The presence of AC influences the photocatalytic activity of AC-TiO2 composite towards RR 120 and OFL degradation. The presence of heteroatoms-enriched AC enhances the charge mobility and suppresses the electron-hole recombination in AC-TiO2 composite, which enhances the photocatalytic activity of the composite. The hybrid material AC-TiO2 composite displayed a higher photocatalytic activity against Reactive Red 120 and ofloxacin. The stability of the AC-TiO2 was tested against RR 120 dye degradation with multiple runs. GC-MS analyzed the degradation intermediates, and a suitable degradation pathway was also proposed. These results demonstrate that AC-TiO2 composite could be effectively used as an ecofriendly, cost-effective, stable, and highly efficient photocatalyst.

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“…Yoon, C.-J., et al, (2021) developed the TiO 2 @carbon nanotube and evaluated the photocatalytic activity of the TiO 2 @carbon nanotube photocatalyst by the degradation of MB in water. The photocatalyst showed 85% degradation of MB when the UV radiation source was used [84]. Alghamdi, Y.G., et al, (2022) synthesized biomass based activated carbon loaded with TiO 2 and used it for the photocatalytic degradation of oflxacin and reactive red 120.…”

Section: Optical Propertiesmentioning

confidence: 99%

TiO2/Activated Carbon/2D Selenides Composite Photocatalysts for Industrial Wastewater Treatment

Ahmad

Tahir

Kamal

et al. 2023

Water

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Even in the 21st century, water contamination has been a big problem and industrial processes are to be blamed for polluted water supplies. The use of sunlight in the process of photocatalysis is an efficient way to purify wastewater. Composites of TiO2/activated carbon/two-dimensional selenides performed better than either of the individual material or binary composites for this application. A straightforward hydrothermal technique was employed in the synthesis of photocatalysts. The synthesized photocatalytic composites were verified with the help of UV-Visible spectroscopy, FTIR, XRD, and SEM. The heterostructures absorbed nearly all of the sun’s UV and visible light. These photons are then converted into usable reducing electrons and oxidizing species such as •O2 and OH• to decompose organic pollutants from industrial wastewater. Since there were additional pathways available for charge transfer along with several active edge sites, the composite photocatalysts are proven more active than individual TiO2 and 2D MoSe2 components. With the help of a cascade-driven mechanism of electrons, these channels can transmit more charges than single-component heterojunctions. The results provided a realistic method for developing photocatalyst composites powered by solar light for use in industrial wastewater treatment. Results of degradation of methylene blue suggest that the synthesized composites possess better photocatalytic activity. This enhanced photocatalytic activity is not limited to organic dyes. Other hazardous organic pollutants present in industrial wastewater can be decomposed by using this approach.

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Fabrication of sustainable and multifunctional TiO2@carbon nanotube nanocomposite fibers

Cited by 20 publications

References 27 publications

Simultaneous reinforcement of the electrical and mechanical properties of carbon nanotube fibers by using a natural cross-linkable thermosetting polymer

Simultaneous reinforcement of the electrical and mechanical properties of carbon nanotube fibers by using a natural cross-linkable thermosetting polymer

Design and Preparation of Biomass-Derived Activated Carbon Loaded TiO2 Photocatalyst for Photocatalytic Degradation of Reactive Red 120 and Ofloxacin

TiO2/Activated Carbon/2D Selenides Composite Photocatalysts for Industrial Wastewater Treatment

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