Siagian, Muhammad Rifai (2025) Aalisis Pengaruh Penambahan Massa GLS Dari Cocopeat Terhadap Sifat Adsorpsi Komposit PERLIT/GLS/CNT Sebagai Adsorben Logam Berat Pb2+ dan Cd2+. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kehadiran limbah logam berat dalam perairan di sekitar kita layak mendapat perhatian lebih karena toksik dan non-esensial. Logarm berat seperti Cd(II) dan Pb(II) masuk dalam golongan non-esensial yang berbahaya apabila menumpuk dalam tubuh manusia dan dapat menyebabkan gangguan kesehatan. Adsorpsi merupakan salah satu teknik yang banyak digunakan dalam penanggulangan logam berat, khususnya yang terdapat di air. Adsorpsi dilakukan dengan menggunakan adsorben untuk menarik dan menahan ion logam pada permukaannya. Kriteria material dapat dijadikan sebagai adsorben yaitu luas permukaan yang besar, memiliki struktur berpori, dan memiliki afinitas terhadap adsorbat. Salah satu material yang memiliki sifat tersebut adalah graphene-like sheets (GLS). Dalam penelitian ini, GLS dikompositkan dengan carbon nanotube (CNT) dan perlit untuk menghasilkan adsorben ideal. Penelitian ini dilakukan untuk menganalisa pengaruh variasi penambahan massa GLS terhadap struktur dan morfologi komposit Perlit/GLS/CNT serta sifat adsorpsi terhadap logam berat Pb2+ dan Cd2+. Variasi penambahan massa GLS yang digunakan 0,5 , 1 dan 1,5 gram. Setelah itu, dilakukan pengujian karakterisasi material yang meliputi SEM-EDX (Scanning Electron Microscopy/Energy Dispersive X-Ray), XRD (X-Ray Diffraction), FTIR (Fourier Transform Infrared Spectroscopy) dan BET (Brunauer-Emmett-Teller). Pengujian AAS (Atomic Absorption Spectrophotometry) dilakukan untuk menguji kemampuan adsorbsi dari komposit tersebut. Hasil karakterisasi XRD menunjukkan komposit Perlit/GLS/CNT telah terbentuk dengan munculnya peak pada 2θ = 26° dan 43° yang sesuai dengan material GLS dan carbon nanotube dan puncak perlit pada 2θ = 29° dan 35°. Pengujian FTIR mengidentifikasi gugus fungsi untuk material GLS dan dan CNT yang diwakili oleh C=C, C=O. Untuk material perlit ditunjukkan dengan adanya gugus Si-O-Si atau Si-O-Al. Komposit Perlit/GLS/CNT dengan penambahan massa GLS 1 gram berhasil mengadsorpsi limbah logam berat Pb2+ dan Cd2+ selama 240 menit dengan persen teradsorpsi tertinggi sebesar yaitu 90,341% dan 42,975%. Hasil penelitian menunjukkan bahwa komposit Perlit/GLS/CNT memiliki potensi sebagai adsorben logam berat Pb2+.
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The presence of heavy metal waste in the waters around us deserves more attention because it is toxic and non-essential. Heavy metals such as Cd(II) and Pb(II) are included in the non-essential group which is dangerous if it accumulates in the human body and can cause health problems. Adsorption is one of the techniques widely used in handling heavy metals, especially those found in water. Adsorption is carried out by using an adsorbent to attract and retain metal ions on its surface. The criteria for a material to be used as an adsorbent are a large surface area, a porous structure, and an affinity for the adsorbate. One material that has these properties is graphene-like sheets (GLS). In this study, GLS was composited with carbon nanotubes (CNT) and perlite to produce an ideal adsorbent. This study was conducted to analyze the effect of variations in the addition of GLS mass on the structure and morphology of the Perlite/GLS/CNT composite as well as its adsorption properties towards the heavy metals Pb2+ and Cd2+. The variations in the addition of GLS mass used were 0.5, 1 and 1.5 grams. After that, material characterization tests were carried out including SEM-EDX (Scanning Electron Microscopy/Energy Dispersive X-Ray), XRD (X-Ray Diffraction), FTIR (Fourier Transform Infrared Spectroscopy) and BET (Brunauer-Emmett-Teller). AAS (Atomic Absorption Spectrophotometry) testing was carried out to test the adsorption capacity of the composite. The XRD characterization results showed that the Perlite/GLS/CNT composite had formed with the appearance of peaks at 2θ = 26° and 43° which correspond to GLS and carbon nanotube materials and pearlite peaks at 2θ = 29° and 35°. FTIR testing identified functional groups for GLS and CNT materials represented by C=C, C=O. For pearlite material, it is indicated by the presence of Si-O-Si or Si-O-Al groups. The Perlite/GLS/CNT composite with the addition of 1 gram of GLS mass successfully adsorbed heavy metal waste Pb2+ and Cd2+ for 240 minutes with the highest adsorption percentage of 90.341% and 42.975%. The results of the study indicate that the Perlite/GLS/CNT composite has potential as an adsorbent for heavy metal Pb2+.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Adsorpsi, Cocopeat, Graphene-Like Sheets, Logam Berat, Perlit, Adsorption, Cocopeat, Graphene-Like Sheets, Heavy Metals, Perlite |
| Subjects: | Q Science > QC Physics > QC162 Adsorption and absorption Q Science > QD Chemistry > QD341.H9 Graphene |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Muhammad Rifai Siagian |
| Date Deposited: | 31 Jul 2025 07:12 |
| Last Modified: | 31 Jul 2025 07:12 |
| URI: | http://repository.its.ac.id/id/eprint/124205 |
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