{"title":"Effect of Multi-walled carbon nanotube incorporation on the photocatalytic activity of TiO<sub>2</sub> nanotubes","authors":"Mert Altay, Murat Baydoğan","doi":"10.1680/jsuin.23.00051","DOIUrl":null,"url":null,"abstract":"Arrays of titanium dioxide (TiO 2 ) nanotubes were prepared on commercially pure titanium (Cp-Ti) foils by anodic oxidation in 0.5 M HF-based electrolyte with multi-walled carbon nanotubes (MWCNTs) addition up to 0.035 g/L. The samples were annealed at 450 °C for 1 h after the anodic oxidation to form a crystalline anatase structure. The effect of the MWCNTs addition on morphology and photocatalytic activity of the nanostructures was characterized by scanning electron microscopy (SEM), Raman spectroscopy, UV-Vis diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy, and methylene blue (MB) degradation tests. The results showed that MWCNTs were successfully incorporated into the TiO 2 nanotube structure, and significantly affected its photocatalytic activity. The best photocatalytic performance was achieved with the use of 0.025 g/L MWCNTs in the electrolyte composition. However, when the MWCNTs content in the electrolyte increased, the electron-hole recombination rate and photon absorption ability of the structure deteriorate, resulting in a decreased photocatalytic activity.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":null,"pages":null},"PeriodicalIF":2.7000,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Innovations","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1680/jsuin.23.00051","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Arrays of titanium dioxide (TiO 2 ) nanotubes were prepared on commercially pure titanium (Cp-Ti) foils by anodic oxidation in 0.5 M HF-based electrolyte with multi-walled carbon nanotubes (MWCNTs) addition up to 0.035 g/L. The samples were annealed at 450 °C for 1 h after the anodic oxidation to form a crystalline anatase structure. The effect of the MWCNTs addition on morphology and photocatalytic activity of the nanostructures was characterized by scanning electron microscopy (SEM), Raman spectroscopy, UV-Vis diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy, and methylene blue (MB) degradation tests. The results showed that MWCNTs were successfully incorporated into the TiO 2 nanotube structure, and significantly affected its photocatalytic activity. The best photocatalytic performance was achieved with the use of 0.025 g/L MWCNTs in the electrolyte composition. However, when the MWCNTs content in the electrolyte increased, the electron-hole recombination rate and photon absorption ability of the structure deteriorate, resulting in a decreased photocatalytic activity.
Surface InnovationsCHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
5.80
自引率
22.90%
发文量
66
期刊介绍:
The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace.
Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.