Abstract
Abstract The research analyzed the physical properties of TiO2 and bentonite nanocomposite as adsorbent materials. The TiO2 synthesis method was carried out through a sol–gel process. Meanwhile the synthesis of bentonite was carried out by the ball mill, coprecipitation and addition of cetyltrimethylammonium bromide (CTAB) surfactant. X-ray diffraction nanocomposite characterization showed that the particle size was 17.13 nm. Fourier transform infrared analysis showed the required absorption peak in photocatalysis because the OH group can react with holes and prevent electron–hole pair recombination. The morphology of the nanocomposite showed the occurrence of TiO2 pillarization in bentonite. The results of the X-ray fluorescence nanocomposite showed that the content of TiO2 and SiO2 was 65.22 and 17.4%, respectively.
Highlights
Titanium dioxide (TiO2) is a white pigment material with high brightness and refractive index
The synthesis of bentonite was performed by the coprecipitation method by mixing 6 M HCl using a stirrer at a temperature of 70°C for 4 h
Physical analysis of TiO2 and bentonite nanocomposite shows that these materials can be used as adsorbents
Summary
Titanium dioxide (TiO2) is a white pigment material with high brightness and refractive index. The specific surface area and surface–volume ratio increase as the material size decreases. The photocatalytic activity of TiO2 depends on several properties such as crystal phase, surface area, lattice defects, and degree of crystallinity. The manufacture of nano-TiO2 with the sol–gel process has been carried out, among others [10,11] This is because the method works at room temperature [12]. Pillarization of bentonite with TiO2 can increase the basal distance and specific surface area of the material. It is because TiO2 has a large specific surface area. The effect of GO/TiO2 nanocomposite in a solution based on natural surfactants on rock samples can be a candidate adsorbent [20,21]. The results of this study are expected to be used as new candidates as adsorbent materials
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