Abstract:Pemanfaatan fotokatalis saat ini dikembangkan untuk mendapatkan hasil fotokatalis yang aktif pada sinar tampak sehingga bisa menggunakan sinar matahari yang sudah tersedia di alam sebagai sumber energinya atau dengan menggunakan lampu UV. Proses fotokatalis menjadi alternatif dalam mengolah limbah ataupun fotodegradasi senyawa organik semacam zat organik dengan skala besar serta dengan biaya yang relatif terjangkau. Asam humat merupakan senyawa organik heterogen yang terurai dan dapat mengingat logam berat da… Show more
Humic acid is an organic compound that has changeable properties and is globally yellow and black in color. Humic substances act as substrates for the needs of the development of microorganisms and will give out unwanted yellow or brown colors (Adnan et al., 2022). Simply put, photocatalyst is a combination reaction between photochemistry and also a catalyst whose process with the help of a light or photo is used to speed up a chemical reaction (Chandra, 2012). The type of photocatalyst used is TiO 2 (Titanium Dioxide) which is varied with Fe 3 O 4 to determine the pH of the humic acid solution. TiO 2 (Titanium Dioxide) is one type of inorganic oxide. Semiconductor materials such as TiO2 are widely used as photocatalysts of organic substances with the help of UV light. Based on research conducted by Pradipta et al. ( 2021), TiO 2 catalyst can be combined with Fe 3 O 4 , as evidenced by the high degradation by Fe 3 O 4 /TiO 2 nanocomposites. In the catalyst activity test using 3 variations of pH, namely 3, 7 and 10 with a concentration of 15 ppm, there are differences in each solution. Experiments were carried out at the same time but at different pH. The photocatalyst activity test was continued with variations in concentration using pH 3 (acidic), research on variations in concentrations of 15 ppm, 20 ppm and 25 ppm. The three solutions were tested using UVC light with 1 g of TiO 2 added as a catalyst so that organic compounds could be degraded. The research used, the optimum result is pH 3 (acidic) the reason is because the percentage decrease from pH 3 and other pH is different. The optimum concentration result was 15 ppm with a pH of 3 (acidic). The lower the concentration in the solution, the pollutants contained in the solution are easier to degrade. A low solution concentration of ions at an acidic pH will increase the activity of the catalyst. The percentage of degradation from pH 3 (acid) concentration of 15 ppm is 92.7954%, which means it is bigger than other pH variations.
Humic acid is an organic compound that has changeable properties and is globally yellow and black in color. Humic substances act as substrates for the needs of the development of microorganisms and will give out unwanted yellow or brown colors (Adnan et al., 2022). Simply put, photocatalyst is a combination reaction between photochemistry and also a catalyst whose process with the help of a light or photo is used to speed up a chemical reaction (Chandra, 2012). The type of photocatalyst used is TiO 2 (Titanium Dioxide) which is varied with Fe 3 O 4 to determine the pH of the humic acid solution. TiO 2 (Titanium Dioxide) is one type of inorganic oxide. Semiconductor materials such as TiO2 are widely used as photocatalysts of organic substances with the help of UV light. Based on research conducted by Pradipta et al. ( 2021), TiO 2 catalyst can be combined with Fe 3 O 4 , as evidenced by the high degradation by Fe 3 O 4 /TiO 2 nanocomposites. In the catalyst activity test using 3 variations of pH, namely 3, 7 and 10 with a concentration of 15 ppm, there are differences in each solution. Experiments were carried out at the same time but at different pH. The photocatalyst activity test was continued with variations in concentration using pH 3 (acidic), research on variations in concentrations of 15 ppm, 20 ppm and 25 ppm. The three solutions were tested using UVC light with 1 g of TiO 2 added as a catalyst so that organic compounds could be degraded. The research used, the optimum result is pH 3 (acidic) the reason is because the percentage decrease from pH 3 and other pH is different. The optimum concentration result was 15 ppm with a pH of 3 (acidic). The lower the concentration in the solution, the pollutants contained in the solution are easier to degrade. A low solution concentration of ions at an acidic pH will increase the activity of the catalyst. The percentage of degradation from pH 3 (acid) concentration of 15 ppm is 92.7954%, which means it is bigger than other pH variations.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.