Analisis Pengaruh Rasio Massa GLS Pada Komposit Fe2O3/GLS/CNT Terhadap Performa Adsorben Logam Berat Pb2+ Dan Cd2+

Huanfa, Narawangsa Dary Taqi (2025) Analisis Pengaruh Rasio Massa GLS Pada Komposit Fe2O3/GLS/CNT Terhadap Performa Adsorben Logam Berat Pb2+ Dan Cd2+. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dampak pencemaran logam berat seperti timbal (Pb) dan kadmium (Cd) di perairan sangat serius bagi lingkungan dan kesehatan manusia. Paparan Pb dapat merusak sistem saraf, ginjal, reproduksi, dan pembentukan darah, sementara Cd dapat memicu kanker, gangguan pernapasan, gagal ginjal, bahkan kematian. Untuk mengatasi masalah ini, berbagai metode penghilangan limbah logam berat tersedia, seperti presipitasi kimia, koagulasi-flokulasi, elektrodeposisi, dan adsorpsi. Metode adsorpsi menjadi pilihan utama karena kemudahan, biaya relatif rendah, dan efektivitasnya dalam menghilangkan logam berat konsentrasi rendah. Adsorpsi bekerja dengan memanfaatkan adsorben yang menarik dan menahan ion logam pada permukaannya. Adsorben ideal memiliki luas permukaan besar, struktur berpori, dan afinitas tinggi terhadap adsorbat. Salah satu material yang memiliki sifat tersebut adalah graphene-like sheets di mana graphene dapat dibuat dengan menggunakan biomassa dan salah satu biomassa yang dapat digunakan adalah cocopeat. Pada proses sintesis graphene-like sheets digunakan suatu reagen untuk memfasilitasi pembentukan struktur grafena. Salah satu reagen yang dapat digunakan adalah K2CO3. Dalam penelitian ini dilakukan pengkompositan antara graphene-like sheets, CNTs, dan Fe2O3 untuk meningkatkan kemampan adsorpsinya. Setelah itu, dilakukan pengujian karakterisasi material yang meliputi SEM-EDX, XRD, BET . Kemudian dilakukan pengujian AAS. untuk menguji kemampuan adsorbsi dari komposit tersebut. Berdasarkan peneletian, dapat disimpulkan bahwa material GLS telah berhasil disintesis yang didukung oleh karakterisasi yang dilakukan. Material komposit Fe_2 O_3/GLS/CNT dengan variasi penambahan massa GLS sebanyak 0,5 gram, 1 gram, dan 1,5 gram berhasil mengadsorpsi larutan yang mengandung logam berat Pb^(2+) dan Cd^(2+) setelah dilakukan pengadukan selama 240 menit. Nilai kapasitas adsorpsi untuk setiap variasi penambahan massa sebesar 47,08 mg/g, 58,56 mg/g, dan 78,6 mg/g untuk logam berat Pb^(2+) dan sebesar 31,19 mg/g, 30,55 mg/g, dan 33,12 mg/g untuk logam berat Cd^(2+). Hasil maksimal ditunjukkan pada variasi penambahan massa graphene-like sheet sebanyak 1,5 gram untuk kedua logam berat.
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The impact of heavy metal pollution such as lead (Pb) and cadmium (Cd) in water is very serious for the environment and human health. Exposure to Pb can damage the nervous system, kidneys, reproduction, and blood formation, while Cd can trigger cancer, respiratory disorders, kidney failure, and even death. To address this problem, various methods for removing heavy metal waste are available, such as chemical precipitation, coagulation-flocculation, electrodeposition, and adsorption. The adsorption method is the main choice because of its simplicity, relatively low cost, and effectiveness in removing low concentrations of heavy metals. Adsorption works by utilizing an adsorbent that attracts and retains metal ions on its surface. An ideal adsorbent has a large surface area, a porous structure, and a high affinity for the adsorbate. One material that has these properties is graphene-like sheets, which can be made from biomass, one of which is cocopeat. In the process of synthesizing graphene-like sheets, a reagent is used to facilitate the formation of the graphene structure. One reagent that can be used is K2CO3. In this study, a composite was made between graphene-like sheets, CNTs, and Fe2O3 to increase their adsorption capacity. After that, material characterization tests were carried out including SEM-EDX, XRD, BET. Then AAS testing was carried out to test the adsorption capacity of the composite. Based on the research, it can be concluded that the GLS material has been successfully synthesized which is supported by the characterization carried out. The Fe2O3/GLS/CNT composite material with variations in the addition of GLS mass of 0.5 grams, 1 gram, and 1.5 grams successfully adsorbed solutions containing heavy metals Pb2+ and Cd2+ after stirring for 240 minutes. The adsorption capacity values for each variation of mass addition were 47.08 mg/g, 58.56 mg/g, and 78.6 mg/g for the heavy metal Pb2+ and 31.19 mg/g, 30.55 mg/g, and 33.12 mg/g for the heavy metal Cd2+. The maximum results were shown at a variation of the addition of a graphene-like sheet mass of 1.5 grams for both heavy metals.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Adsorpsi, Cocopeat, Graphene-like Sheets Adsorption, Cocopeat, Graphene-like Sheets
Subjects:	Q Science > QC Physics > QC162 Adsorption and absorption Q Science > QC Physics > QC173.4.C63 Composite materials Q Science > QD Chemistry > QD281 Pyrolysis Q Science > QD Chemistry > QD341.H9 Graphene
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Narawangsa Dary Taqi Huanfa
Date Deposited:	01 Aug 2025 03:10
Last Modified:	01 Aug 2025 03:10
URI:	http://repository.its.ac.id/id/eprint/125489

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