The effect of different types of molecules methylene blue on the adsorption capacity of improved 1% TiO2/G-NS

• Main Authors: Ulfa, Maria, Hasanah, Ika Uswatun, Saraswati, Teguh Endah
• Format: Conference Proceeding
• Language: English
• Subjects: Adsorption; Dyes; Functional groups; Gelatin; Methylene blue; Silicon; Titanium dioxide
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0106757

Research has been carried out on the synthesis of nanosilica using gelatin as natural template by the hydrothermal method at 90°C for 24 hours. Preparation of nanosilica by gelatin (G-NS) was initiated by reacting precursor pluronic 123 with 1% gelatin at 45°C. After that, G-NS will be activated using 50 mL of 0.1 M HCL and followed by an impregnation process of TiO2 1% wt for the preparation of TiO2/G-NS adsorbent. Characterization of the sample using an XRD and FTIR. The adsorption value was determined by a UV-Vis spectrophotometer. The characterization results showed that TiO2/G-NS had amorphous properties of silica with a particle size between 0.4055 to 0.86331 nm. The TiO2/G-NS after calcination functional group based on the FTIR test showed that the absorption occurs at wave numbers 1054.86 cm-1 and 796.12 cm−1 are the form of Si-O-Si and Ti-O groups. The results of TiO2/G-NS adsorption test on three variations of Methylene Blue molecules showed the adsorption of molecules of the methylene blue type of Methylthioninium chloride has a higher adsorption capacity than Methylene Blue hydrate and Methylene Blue trihydrate because the molecular size of Methylene Blue is the smallest among other samples. The adsorption capacity values of the three molecules methylene blue were 154.9537; 142.964; 48.7836 mg/g and also make G-NS as the best candidate for remediation aquatic area from waste on the future.