Green Solution for Pollution Remediation: Biomass-Based Adsorbent Impregnated with Aluminum Oxide

Adsorption is a highly efficient operational method for removing persistent pollutants from industrial effluent. Currently, the use of biomass-based adsorbents for pollutant degradation is mostly influenced by the physisorption mechanism, which is not very efficient and has poor selectivity. In order to address this constraint, researchers extensively studied the potential of nanometal oxides impregnated with biomass-based adsorbents, primarily due to their advantageous physicochemical characteristics, including a large surface area and functional groups. This study investigates the efficacy of a hybrid adsorbent called Al2O3-SCBAC, which is generated from sugarcane bagasse (SCBAC) and aluminum oxides (Al2O3), for treating synthetic dye from aquoues solution. The adsorption experiments were designed and optimized using the Central Composite Design Response Surface Methodology (CCD-RSM) in the Expert Design. The evaluation of the adsorption performance involved assessing the effect of factors such as adsorbent dosage, initial methyl orange (MO) concentration, and contact time on the operating conditions. Based to the adsorption analysis, the hybrid adsorbent had the maximum adsorption capacity of 1.86 mg/g, greater than SBAC's (0.72 mg/g) under optimized conditions. The acquired result has demonstrated the potential of utilizing sugarcane bagasse, a commonly generated biomass in Asia, for the development of a hybrid adsorbent for pollutant removal.