SiO2 loading into polydopamine-functionalized TiO2 nanotubes for biomedical applications

Qiao, Hongchao; Xiao, Hongyuan; Huang, Yong; Yuan, Cuifang; Zhang, Xuejiao; Bu, Xiaopei; Wang, Zhenhui; Han, Shuguang; Zhang, Lijuan; Su, Zhuobin; Zhang, Xiaojun

doi:10.1016/j.surfcoat.2019.02.089

Cited by 33 publications

(11 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among numerous photocatalysts, TiO 2 is one of the materials which have been widely used in the wastewater treatment because of its excellent photocatalytic activity, low manufacturing cost, and high chemical stability [7]. However, TiO 2 can be used by absorbing only the ultraviolet (UV) region of the solar spectrum, due to its wide band gap (3.20 eV) [8]. In addition, the high percentage of electron-hole recombination of TiO 2 is another important factor hindering the catalytic activity [9].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of polypyrrole-modified Fe₃O₄/SiO₂/TiO₂ nanocomposite microspheres and their photocatalytic activity

Han¹,

Kim²,

Mun³

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

A polypyrrole-modified Fe3O4/SiO2/TiO2 composite material was successfully synthesized on the FST surface by in situ polymerization of pyrrole. Structural, morphological and magnetic response of Fe3O4/SiO2/TiO2/PPy(FST/PPy) were characterized by transmission electron microscopy, scanning electron microscopy, X-ray diffraction pattern, Fourier transform infrared spectroscopy and energy-dispersive X-ray spectroscopy, etc. Through SEM images, the crystal sizes of the prepared FST/PPy nanoparticles were determined to be about 110 nm. The catalytic activity of FST/PPy was evaluated by the degree of decomposition of rhodamine B under ultraviolet and visible light, respectively. FST/PPy had the photocatalytic activity under the action of the light: the degradation rate of rhodamine B reached 92.8% and 63.5% after 3 h of UV and Vis light irradiation, respectively. Especially, compared with FST, the degradation rate has shown obvious improvement under the action of Vis light. Furthermore, FST/PPy photocatalyst could be easily recycled using a magnet.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis of polypyrrole-modified Fe₃O₄/SiO₂/TiO₂ nanocomposite microspheres and their photocatalytic activity

Han¹,

Kim²,

Mun³

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…In the case of TiO 2 , these nanotube or nanorod arrays, with their high surface area, provide a practical solution for building photoreactors for water purification and an alternative to titania powder or dense films [9]. Therefore, 3D titanium dioxide nanotube structures have attracted tremendous attention due to their uniform morphologies, large surface area and controllable size, as well as their potential applications, such as photo catalysis [10], dye sensitized solar cells [11], self-cleaning surfaces [12], corrosion resistance [13], wastewater treatment [14], biomedical implants [15], gas sensing [16] and solar hydrogen production [17,18].…”

Section: Introductionmentioning

confidence: 99%

Effect of Morphology on the Photoelectrochemical Activity of TiO2 Self-Organized Nanotube Arrays

et al. 2020

View full text Add to dashboard Cite

In the present work, highly ordered titanium dioxide (TiO 2 ) nanotube anodes were grown using a rapid anodization process. The photoelectrochemical performances of these electrodes strongly depend on the anodization conditions. Parameters such as electrolyte composition, anodization potential and anodization time are shown to affect the geometrical parameters of TiO 2 nanotubes. The optimal anodization parameters are determined by photocurrent measurements, linear sweep voltammetry and electrochemical impedance spectroscopy. The thickness of the tube wall and its homogeneity is shown to strongly depend on the anodization potential, and the formation mechanism is discussed. This study permits the optimization of the photocurrent density and contributes to further improvement of the photoelectrochemical water-splitting performance of TiO 2 nanotube photoelectrodes.

show abstract

“…As orthopaedic implant success can be undermined by two leading causes, aseptic loosening and infection, implant coating are required to achieve inhibit microbial cells while still promoting the osteointegration. Many studies have focused on biofunctional NT to enhance their antibacterial activity or interactions with cells [20][21][22][23]. However, the biotribological and biocorrosion performances of NT, which play a key role in the long-term success of an implantation, are often missed.…”

Section: Introductionmentioning

confidence: 99%

Growth of TiO2 Nanotube on Titanium Substrate to Enhance its Biotribological Performance and Biocorrosion Resistance

Luo

Ajami

et al. 2019

J Bionic Eng

View full text Add to dashboard Cite

TiO2 nanotubes (NTs) have a great potential in improving the osetointegration of titanium (Ti)-based biomaterials. Much efforts have been made to evaluate the biological performance of the TiO2 nanotube in regulating protein adsorption and cells attachments. As often used in orthopaedic applications, although biotribological performance and biocorrosion are important issues in these applications, few researches have been reported on the biotribological performance of NT layers. This paper reports the preparation of a structure-optimised TiO2 NT (SO-NT) material via a multi-step oxidation strategy, as well as its biotribological and biocorrosion behaviours. In this procedure, an interfacial bonding layer of approximately 120-150 nm was first formed on the titanium substrate, which is then joined to the NT bottoms. The mechanical testing with respect to impact, bending, and biotribological performance have demonstrated the resultant SO-NT layer possess improved mechanical stability compared to conventional NT. The uniform hyperfine interfacial bonding layer with nano-sized grains exhibited a strong bonding to NT layer and Ti substrate. It was observed, the layer not only effectively dissipates external impacts and shear stress but also acts as a good corrosion resistance barrier to prevent the Ti substrate from corrosion. Theoretical models are proposed to analyse and predict the shear performance and corrosion-resistance mechanisms of the resultant material. The obtained results demonstrated that the SO-NT material has great potential in orthopaedic applications

show abstract

SiO2 loading into polydopamine-functionalized TiO2 nanotubes for biomedical applications

Cited by 33 publications

References 40 publications

Synthesis of polypyrrole-modified Fe₃O₄/SiO₂/TiO₂ nanocomposite microspheres and their photocatalytic activity

Synthesis of polypyrrole-modified Fe₃O₄/SiO₂/TiO₂ nanocomposite microspheres and their photocatalytic activity

Effect of Morphology on the Photoelectrochemical Activity of TiO2 Self-Organized Nanotube Arrays

Growth of TiO2 Nanotube on Titanium Substrate to Enhance its Biotribological Performance and Biocorrosion Resistance

Contact Info

Product

Resources

About

SiO2 loading into polydopamine-functionalized TiO2 nanotubes for biomedical applications

Cited by 33 publications

References 40 publications

Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity

Synthesis of polypyrrole-modified Fe3O4/SiO2/TiO2 nanocomposite microspheres and their photocatalytic activity

Effect of Morphology on the Photoelectrochemical Activity of TiO2 Self-Organized Nanotube Arrays

Growth of TiO2 Nanotube on Titanium Substrate to Enhance its Biotribological Performance and Biocorrosion Resistance

Contact Info

Product

Resources

About

Synthesis of polypyrrole-modified Fe₃O₄/SiO₂/TiO₂ nanocomposite microspheres and their photocatalytic activity

Synthesis of polypyrrole-modified Fe₃O₄/SiO₂/TiO₂ nanocomposite microspheres and their photocatalytic activity