Abstract:Penelitian ini bertujuan untukmensintesis nanosilika dari daun bambu dan mengaplikasikannya sebagai pengemban fotokatalis CuO (0,25% CuOx@SiO2) pada reaksi degradasi congo red. Senyawa SiO2 dihasilkan dari abu daun bambu wulung (Gigantochloa atroviolacea) melalui proses kalsinasi pada suhu 800°C selama 6 jam. Senyawa 0,25% CuOx@SiO2 yang dihasilkan selanjutnya dikarakterisasi dengan UV-Vis diffuse reflectance spectra dan uji aktivitas adsorbsinya pada keadaan gelap, dilanjutkan uji aktivitas fotodegradasi laru… Show more
“…Processing waste uses the silica dioxide acts as an adsorbent can help speed up degradation reactions and convert it into forms that are safer or easier to remove [11]. So that, rice husks can be utilized properly, they must be further processed into husk charcoal or husk ash.…”
The coprecipitation method has been successfully used for the synthesis and characterization of composite Fe3O4/SiO2/ZnO. The purpose of this research was to lower the concentrations of heavy metals in the water in an effort to restore natural functioning of the water. Because of its excellent chemical properties and high biocompatibility, silica is an intriguing and renewable material. The mixing magnetic materials Fe3O4 and ZnO can provide efficient separation effects, increase test sensitivity, and reduce detection time. The modification Fe3O4 with %wt ZnO (5; 10; 15;20) uses rice husk ash as a substitute for SiO2 in the application of heavy metal ion wastewater absorption, the aim is to minimize the composition of recyclable metal ion content which is environmentally friendly. The characterization of composite Fe3O4/SiO2/ZnO using SEM-EDS for morphological analysis and mapping of the elements that make up the sample The composite Fe3O4/SiO2/ZnO has gaps between its particles and a homogeneous shape, as seen by the SEM images.
“…Processing waste uses the silica dioxide acts as an adsorbent can help speed up degradation reactions and convert it into forms that are safer or easier to remove [11]. So that, rice husks can be utilized properly, they must be further processed into husk charcoal or husk ash.…”
The coprecipitation method has been successfully used for the synthesis and characterization of composite Fe3O4/SiO2/ZnO. The purpose of this research was to lower the concentrations of heavy metals in the water in an effort to restore natural functioning of the water. Because of its excellent chemical properties and high biocompatibility, silica is an intriguing and renewable material. The mixing magnetic materials Fe3O4 and ZnO can provide efficient separation effects, increase test sensitivity, and reduce detection time. The modification Fe3O4 with %wt ZnO (5; 10; 15;20) uses rice husk ash as a substitute for SiO2 in the application of heavy metal ion wastewater absorption, the aim is to minimize the composition of recyclable metal ion content which is environmentally friendly. The characterization of composite Fe3O4/SiO2/ZnO using SEM-EDS for morphological analysis and mapping of the elements that make up the sample The composite Fe3O4/SiO2/ZnO has gaps between its particles and a homogeneous shape, as seen by the SEM images.
Bekamal is a fermented meat typical of Banyuwangi Regency which is produced traditionally with the addition of sugar and salt as a preservative and flavor enhancer. The weakness of commercial bekamal takes a long time because the meat must be fermented for 3 to 6 months to get some unique taste, which has a juiciness, slightly sour and salty that consumers like. The B14A probiotic candidate is added to the bekamal ingredients to help speed up the fermentation process with similar characteristics to commercial bekamal. Bekamal with B14A isolate is begun by regenerating the isolate to become a starter culture. The 10% starter culture is inoculated into the pieces of meat and added by 7.5% palm sugar and 7% salt then fermented in some plastic jars with three variables of fermentation time, there are 7, 14, and 21 days. Bekamal in each fermentation time treatment was tested on physical characteristics that consist of yield, cooking loss, water holding capacity (WHC), and organoleptic properties like taste, color, aroma, and texture. The results showed that the B14A probiotic candidate can speed up the fermentation in less than 1 month (21 days) with physical characteristics and organoleptic properties as well as commercial bekamal.
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