The effect of cetyltrimethylammonium bromide (CTAB) addition on green synthesis of porous N-doped TiO₂ for photoreduction of heavy metal ion Cr(vi)

Abstract

The synthesis of porous N-doped TiO2 using cetyltrimethylammonium bromide (CTAB) as pore-forming agent for photoreduction of Cr(vi) ions.

Cationic-Surfactant (CTAB) Assisted Preparation of 2D Graphitic Carbon Nitride (g-C3N4) Sheets Advances Supercapacitive Performance

“…Through the literature, it was found that even when the decomposition of the CTAB takes place it is beneficial due to the creation of a large number of uniform pores and enhancing of the surface area. Because of the gases released (O2, CO2, H2O) during the decomposition of CTAB, pores are created that are in equal dimensions to those of surfactant [38]. Therefore, to analyze the effect of CTAB integration on the surface area and pore size distribution of g-C3N4, nitrogen adsorptiondesorption isotherms were measured.…”

“…The curve reflects the average pore width of 25 nm for CTAB-integrated g-C3N4 and 30 nm for that without In this work, the g-C 3 N 4 samples were prepared using the thermal treatment of melamine which was conducted at 550 • C. This temperature is higher than that of the decomposition temperature of the CTAB, which is 300 • C. Through the literature, it was found that even when the decomposition of the CTAB takes place it is beneficial due to the creation of a large number of uniform pores and enhancing of the surface area. Because of the gases released (O 2 , CO 2 , H 2 O) during the decomposition of CTAB, pores are created that are in equal dimensions to those of surfactant [38]. Therefore, to analyze the effect of CTAB integration on the surface area and pore size distribution of g-C 3 N 4 , nitrogen adsorption-desorption isotherms were measured.…”