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Journal : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

Synthesis of Magnetic Composites of Chitosan-Fly Ash-Fe3O4 Nanoparticle to Improve Congo Red Dye Adsorption Mayangsari, Novi Eka; Dira Pratiwi, Dewi One; Ashifa, Naura Aqillafasha; Ramadani, Tarikh Azis; Novitrie, Nora Amelia; Nindyapuspa, Ayu; Cahyono, Luqman
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 1 (2025): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/ijeise.v6i1.143

Abstract

Chitosan, an environmentally friendly adsorbent, is derived from the deacetylation of crab shell chitin. In this study, the chemical and physical properties of chitosan were enhanced through the direct compositing process of magnetic chitosan (Chi) with fly ash powder particles (FA). This research is of considerable importance in the development of environmentally friendly adsorbent materials for the treatment of wastewater contaminated with synthetic dyes, particularly azo dyes such as congo red. The utilization of crab shell waste as a source of chitosan, in conjunction with fly ash and Fe₃O₄ to form Chi-FA-Fe₃O₄ magnetic composites, has been demonstrated to exhibit considerable promise in enhancing adsorption efficiency. The magnetic composite of Chi-FA-Fe₃O₄ was characterized by XRD and SEM. The present study investigated the effect of adsorption process parameters on CR dye removal. The parameters that were investigated included contact time (30-150 minutes) and initial concentration of CR dye at an adsorbent dosage of 0.06 grams in 100 milliliters and a pH of 4. The maximum removal efficiency of the Chi-FA-Fe₃O₄ composite for CR dye was recorded as 99.82% at an initial concentration of 100 parts per million (ppm) CR dye for 150 minutes. Pursuant to the analysis of XRD, it has been confirmed that the compositing process was successfully executed, thereby yielding 2θ values indicative of Fe₃O₄ and FA. Additionally, an enhancement in the intensity of the Chi-FA-Fe₃O₄ composite was observed following the adsorption of CR dye. Concurrently, SEM analysis revealed that the Chi-FA-Fe₃O₄ composite and the Chi-FA-Fe₃O₄ composite exhibited an augmented intensity.
Degradation Of Congo Red Based On Natural Coagulant (Moringa Oleifera) Ramadani, Tarikh Azis; Ramadhani, Dhiya’ Arnada; Fatmawati, Meilinda Eka; Mayangsari, Novi Eka; Astuti, Ulvi Pri
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 6 No. 2 (2025): IJEISE
Publisher : UPN Veteran Jatim

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The release of dyes into the environment can have deleterious effects. therefore, their handling must be done in a conscientious manner. One method that can be employed is coagulation-flocculation. The employment of natural coagulants has been demonstrated to mitigate the deleterious effects of polluting compounds on the ecosystem. Moringa oleifera, a plant native to tropical regions, including Indonesia, is a natural source of coagulants. Moringa oleifera plants are extracted using sodium chloride to isolate protein active ingredients. The utilization of a natural coagulant derived from moringa oleifera was implemented with the objective of ameliorating the deleterious effects of congo red. The effectiveness of the natural coagulant was evaluated based on the effect of initial concentration and coagulant dosage. The initial concentration and dose of coagulant exhibited a direct correlation with the efficiency of reducing congo red. An increase in the initial concentration resulted in a concomitant decrease in efficiency, while an increase in the coagulant dose demonstrated a corresponding increase in efficiency. The highest removal efficiency value was obtained when the coagulant dose was 100 ppm and the initial concentration was also 100 ppm. The consequence of this condition was a 99.46% reduction in efficiency of the congo red.