The Effect of Calcination Temperature Variation In Pineapple Leaf Adsorbent Preparation On Methylene Blue Adsorption Using NaCl Activator
Kata Kunci:
Adsorbent, Activated Carbon, Pineapple leaves, Methylene Blue, AdsorptionAbstrak
The use of adsorbents has emerged as a potential solution in wastewater treatment, particularly in addressing pollution caused by heavy metals, dyes, and other organic compounds. However, one of the main challenges still encountered is the relatively low adsorption capacity of adsorbents compared to synthetic adsorbents, which is largely influenced by the pore structure of the adsorbent material. This study aims to optimize the adsorption capacity of pineapple leaf-based activated carbon through cellulose delignification and calcination at varying temperatures of 500°C, 600°C, and 700°C, and to analyze its effects on crystallinity, morphology, as well as adsorption efficiency and capacity for the Methylene Blue (MB) dye. The results show that the highest removal efficiency was achieved at a calcination temperature of 700°C, with an efficiency of 87.07% and an adsorption capacity of 42,27 mg/g. Conversely, the lowest efficiency was observed at 500°C, with an efficiency of 30.15% and an adsorption capacity of 18,09 mg/g. In line with this, morphological characterization revealed that the average pore depth of the adsorbent increased with higher activation temperatures. Thus, it can be concluded that higher calcination temperatures lead to greater adsorption efficiency and capacity of the resulting activated carbon.
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Referensi
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