Tsai, Cheng YenCheng YenTsaiCHEN-WUING LIUHSING-CHENG HSILin, Kuen SongKuen SongLinLin, Yi WenYi WenLin2019-09-262019-09-262019-10-0102682575https://scholars.lib.ntu.edu.tw/handle/123456789/425131© 2019 Society of Chemical Industry BACKGROUND: The non-modified titanium dioxide (TiO2) nanotube (TNT) and silver (Ag)-modified TNT samples were fabricated via an alkaline hydrothermal process. The synthesized samples had a high Brunauer–Emmett–Teller surface area since the resulted TNT was free of calcination, which is different from the traditional synthesized method. The specific surface area of non-modified TNT and Ag-modified TNT samples were 392 and 330 m2 g−1, respectively. RESULTS: The results indicated that anatase phase, cubic silver chloride (AgCl) and Ag co-existed in the Ag-modified TNT sample. In contrast, non-modified TNT sample has only anatase phase. The OH groups, pre-adsorbed water, and oxygen vacancies can be found on the surface of all samples. The Ag-modified TNT sample showed to have higher removal efficiencies than that of non-modified TNT sample for gas-phase elemental mercury, carcinogenic malachite green, crystal violet and mixtures of dyes. CONCLUSION: Although specific surface area of non-modified TNT was larger than that of Ag-modified TNT, the Ag-modified TNT possessed a high-performance photocatalyst due to the electron-hole pairs separation efficiency increase. © 2019 Society of Chemical Industry.calcination-free | carcinogenic dye | electron-hole recombination | elemental mercury | hydrothermal method | photocatalysis[SDGs]SDG3Alkalinity; Calcination; Chemical industry; Chlorine compounds; Dyes; Efficiency; Gases; Mercury (metal); Nanotubes; Photocatalysis; Specific surface area; Stripping (dyes); Titanium dioxide; Yarn; Electron-hole recombination; Elemental mercury; Hydrothermal methods; Hydrothermal process; Photo catalytic degradation; Removal efficiencies; Separation efficiency; Titanium dioxides (TiO2); Silver halides; crystal violet; dye; malachite green; mercury; nanotube; oxygen; silver chloride; silver nanoparticle; titanium dioxide; titanium dioxide nanoparticle; alkaline hydrothermal process; alkalinity; animal tissue; Article; atmospheric pressure; bladder cancer; carcinogenicity; chemical composition; comparative study; controlled study; crystal structure; DNA adduct; gas; health hazard; nanofabrication; nonhuman; photocatalysis; photodegradation; physical chemistry; pore volume; surface area; waste component removaljournal article10.1002/jctb.61352-s2.0-85069890962WOS:000477147000001https://api.elsevier.com/content/abstract/scopus_id/85069890962