Photocatalytic properties of mesoporous TiO2 nanocomposites modified with carbon nanotubes and copper

Nourbakhsh, Amir Abbas; Abbaspour, Sara; Masood, Mahsa; Mirsattari, Seyed Nezamoddin; Vahedi, Azadeh; MacKenzie, Kenneth J.D.

doi:10.1016/j.ceramint.2016.04.112

Cited by 39 publications

(15 citation statements)

References 44 publications

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“…The presence of the (1 0 0) reflection in the low angle XRD pattern of the mesoporous TiO 2 (Fig. S1) is identical to that previously observed in mesoporous TiO 2 [17] and confirms the mesoporous structure of this phase.…”

Section: Zno and Nanoparticle And Mesoporous Tiosupporting

confidence: 85%

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Corrigendum to “The effect of nanoparticle and mesoporous TiO2 additions on the electronic characteristics of reduced graphene oxide nanocomposites with zinc oxide under UV irradiation” [Mater. Sci. Eng. B 246 (2019) 89–95] (Materials Science & Engineering B (2019) 246 (89–95), (S0921510719301679), (10.1016/j.mseb.2019.06.003))

Abbaspour¹,

Nourbakhsh²,

Kahrizsangi³

et al. 2021

Preprint

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Section: Zno and Nanoparticle And Mesoporous Tiosupporting

confidence: 85%

“…The TEM micrograph of the mesoporous TiO 2 (Fig. 4c) is as expected in this material [17] and shows this phase to possess a nano structure with a pore size in the range 5-10 nm [25].…”

Section: Zno and Nanoparticle And Mesoporous Tiomentioning

confidence: 91%

Corrigendum to “The effect of nanoparticle and mesoporous TiO2 additions on the electronic characteristics of reduced graphene oxide nanocomposites with zinc oxide under UV irradiation” [Mater. Sci. Eng. B 246 (2019) 89–95] (Materials Science & Engineering B (2019) 246 (89–95), (S0921510719301679), (10.1016/j.mseb.2019.06.003))

Abbaspour¹,

Nourbakhsh²,

Kahrizsangi³

et al. 2021

Preprint

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“…4d to study the copper states in the film. The main Cu2p3/2 peak at 932.7eV represented the Cu 0 in Cu metal, while the minor Cu 2p3/2 peak at 934.6eV (along with two satellite peaks at 941.8 eV and 944.1 eV) were assigned to the Cu 2+ state in CuO, as reported by Meng et al (2016), Nourbakhsh et al (2016), and Liu et al (2017). Compared with the Cu 2+ content (38%), a higher Cu 0 content (62%) was obtained through calculation of the peak area, which indicated that most of the surface copper atoms are metallic.…”

Section: Characterizations Via Sem Eds Xrd Ftir and Xpsmentioning

confidence: 68%

Natural fiber-based composites with high hydrophobic, magnetic, and EMI shielding properties via iron oxide in situ synthesis and copper film deposition

Wang

Tang

Xiao

et al. 2020

BioRes

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A sandwich-structured natural fiber-based magnetic composite, without the use of a binder, was developed in this study. It was fabricated via in situ synthesis, densification, and magnetron sputtering processes. The chemical composition, crystal structure, microstructure, and thermal stability were characterized via X-ray photoelectron spectroscopy, energy-dispersive spectroscopy, X-ray diffraction, scanning electron microscope, and thermogravimetric analysis. The hydrophobic, magnetic, and electromagnetic interference shielding properties were investigated by measuring the static water contact angle, the magnetic hysteresis loops, and the shielding effectiveness. The resulted composites exhibited a unique inner structure with a larger iron oxide size and content (492 nm and 26.1 wt%) on the interlayer surface in comparison to the core layer (135 nm and 18.7 wt%). The magnetic response can be controlled by the loaded iron oxide content and the copper film deposition. Sputtering copper film changed the surface free energy, and created rough micro-/nanostructures, which yielded a highly hydrophobic nature (133° in water contact angle), and approximately 99.2% of the electromagnetic energy was shielded by the 0.8 mm thick composite.

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“…The results showed that the addition of PANi into TiO 2 -bsed photocatalysts made less of a difference to photo-catalytic activity under UV and visible light irradiation [ 29 , 56 , 57 , 58 ]. Nevertheless, a better photo-catalytic performance of TiO 2 -based photocatalysts without PANi addition was found when irradiated with UV light [ 59 , 60 ]. The reaction rate constants of PANi-CNT/TiO 2 photocatalysts (1.8 × 10 −3 –5.7 × 10 -3 1/min) were similar or even higher than most of those TiO 2 -based photocatalysts listed in Table 1 .…”

Section: Resultsmentioning

confidence: 99%

Preparation and Application of Immobilized Surfactant-Modified PANi-CNT/TiO2 under Visible-Light Irradiation

et al. 2017

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Hydrothermally and sol-gel-synthesized immobilized surfactant-modified polyaniline-carbon nanotubes/TiO2 (PANi-CNT/TiO2) photocatalysts were prepared and their application in the degradation of diethyl phthalate (DEP) under visible light at 410 nm was investigated in this sturdy. To improve the dispersion of nanoparticles and the transfer of electrons, the TiO2 surface was modified with both sodium dodecyl sulfate (SDS) and functionalized carbon nanotubes (CNT-COOH and CNT-COCl). With the addition of PANi, which was increased from 1–5%, the adsorption edge of the prepared photocatalysts shifted to 442 nm. The SDS linked the PANi polymers to achieve a thickness of coating of the film of up to 314–400 nm and 1301–1600 nm for sol-gel hydrolysis and hydrothermally-synthesized photocatalysts, respectively. An appropriate film thickness would extend the transfer path of the electrons and inhibit the recombination of the electrons and the electron-holes. The photo-degradation performance of DEP by the hydrothermally-synthesized photocatalysts was better than those by sol-gel hydrolysis. The results revealed that the hydroxyl radicals were the key oxidant in the degradation of DEP using hydrothermally-synthesized PANi-CNT/TiO2 photocatalysts. The morphology and functional groups of the raw materials of photocatalysts were characterized and a comparison of photocatalytic activity with other TiO2-based photocatalysts was also provided.

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Photocatalytic properties of mesoporous TiO2 nanocomposites modified with carbon nanotubes and copper

Cited by 39 publications

References 44 publications

Natural fiber-based composites with high hydrophobic, magnetic, and EMI shielding properties via iron oxide in situ synthesis and copper film deposition

Preparation and Application of Immobilized Surfactant-Modified PANi-CNT/TiO2 under Visible-Light Irradiation

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