Karakterisasi Karbon Baggase Teraktivasi dan Aplikasinya untuk Adsorpsi Logam Tembaga

Abstract

Bagasse is waste produced from the process of milking or extracting sugarcane stems. Baggase can be optimized in terms of use value and its function as an alternative technology, namely as an active carbon manufacturing material that can be used as a copper (Cu) adsorbent. This study discusses the functional baggase activated carbon group of phosphoric acid and nitric acid using Fourier Transform Infra Red (FTIR) and its application as a copper metal adsorbent in silver craft waste in Ungga Village, Praya, Central Lombok. The production of activated bagasse carbon consists of three stages, namely first dehydration by burning bagasse until it turns into carbon, the second carbonation is heating at 500ºC, carbon results are 100-200 mesh and third, activation by soaking 50 grams of carbon in 500 mL of 20% phosphoric acid and 20% nitric acid for 12 hours. After that the carbon is dried at 110ºC and finally heated at 500ºC for 1 hour. The bagasse carbon that has been made is put into 25 mL of waste water sample with a mass of 2 grams of adsorbent. Samples were then stirred at 30, 60, 90, 120 and 150 minutes contact time variations at a speed of 180 rpm using a batch system. The optimum contact time that is used to calculate the efficiency of copper metal content reduction is by calculating the difference in the metal content of copper metal before it is adsorbed and after it is adsorbed using activated carbon baggase. Concentrations of all copper metals were analyzed using Atomic Absorption Spectrophotometer (AAS). Identification using FTIR spectrophotometer shows that carbon baggase in this study contains functional groups C = O, C = C, C-C, N = O, C = N, C-OH, CH2 and C-H. From the research it was found that the copper metal content in the sample was 14.5710 ppm. The optimum contact time on copper metal adsorption is at 120 minutes contact time which results in optimum adsorption efficiency on copper metal that is 84.88%. Activated carbon baggase is an effective adsorbent to reduce levels of copper metal in silver craft waste.

Temperature and pH Optimization of Chitin from Shrimp Skin as Adsorbent for Textile Dye Waste

“…Chitin in dyes is able to bind to various metal ions due to the presence of hydroxyl groups (Indah & Safnowandi, 2020;Samoila et al, 2019). Chitin has high stability and has pyranose rings connected through β-glycosidic bonds that allow the formation of a straight chain structure close together with strong interchain hydrogen bonds (Xi, 2016).…”

Utilization of Borrasus flabellifer L. Palm Coir Activated with Potassium Hydroxide (KOH) as an Efficient Adsorbent for Rhodamine B Dye Removal

“…The purpose of testing the ash content is to determine the residual minerals and metal oxides that are not dissolved in activated carbon, which are lost in the carbonization and activation processes. The ash content affects the quality of activated carbon, where excess ash can clog the pores of activated carbon and reduce the surface area (Hatimah et al, 2022). Table 1 shows the ash content of KOH activated carbon is lower than that of non-activated carbon.…”

Synergetic Effect of Potassium Iodide and Miana (Coleus scutellaroides (L.) Benth.) Leaves Extract on Mild Steel in HCl Medium

“…Chemical absorption takes place at this point as a result of the formation of a chemical link between the inhibitor and the surface of the mild steel, creating a coordinating covalent bond. (Indah & Safnowandi, 2020;Untari et al, 2020;Wan et al, 2021).…”