Investigation on the storage of benzotriazole corrosion inhibitor in TiO2 nanotube. (8th June 2018)

• Record Type: Journal Article
• Authors: Nguyen, Thi Dieu Hang; Nong, Thanh Tiep; Nguyen, Van Quang; Nguyen, The Quyen; Le, Quang Trung
• Is Part Of: Advances in natural sciences. Volume 9:Number 2(2018)
• Publication Date: 2018-06-08
• Subjects: TNT -- benzotriazole -- anti-corrosion -- inhibitor -- vacuum impregnation; 2.03 -- 4.00 -- 5.11; Nanotechnology -- Periodicals; Nanoscience -- Periodicals; 620.5
• DOI: 10.1088/2043-6254/aac4d6
• Languages: English
• ISSNs: 2043-6254

Abstract

Abstract: The present paper describes different methods for storing the benzotriazole (BTA) corrosion inhibitor in the titanium dioxide nanotubes (TNT) as nanocontainers. Three methods were used, including the vacuum impregnation at ambient temperature, the vacuum impregnation at cooling temperature ( ) and the rotary vacuum evaporation. TNT, BTA and BTA/TNT products were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and Fourier transform infrared (FT-IR) spectroscopy. nanotube powder was synthesized by hydrothermal treatment from the inexpensive spherical commercial precursor. The results obtained from SEM, TEM images and BET values showed the successful synthesis of TNT with a homogeneous morphology of nano size tubes and a large specific surface . The existence of BTA in TNT was demonstrated. The BTA/TNT obtained via the rotary vacuum evaporation contained a very significant amount of BTA (66.6 weight %) but BTA existed mostly outside the nanotubes. Two processes of vacuum impregnation at ambient temperature and vacuum impregnation at cooling temperature revealed that there was about 8 weight % BTA stored in BTA/TNT product and BTA was present mostly inside the nanotubes.