Pengaruh Suhu Sintesa pada Properti Gel Adsorben Berbasis Nipam (N-isopropylacrylamide), Kitosan, dan Asam akrilat

Gogani, Gloria Eudia and Mahdi, Naufal (2019) Pengaruh Suhu Sintesa pada Properti Gel Adsorben Berbasis Nipam (N-isopropylacrylamide), Kitosan, dan Asam akrilat. Diploma thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Salah satu pencemaran lingkungan yang terjadi akibat aktivitas industri elektroplating berupa limbah logam berat yang mengandung bahan berbahaya dan beracun (B3). Logam-logam tersebut dapat terserap dan terakumulasi di dalam tubuh manusia sehingga perlu adanya pengolahan limbah untuk mengurangi pencemaran logam berat. Pada penelitian ini menggunakan NIPAM, chitosan, dan asam akrilat untuk membuat polimer gel. Pengembangan reversible dan porous adsorben gel untuk mengadsorpsi dan meregenerasi limbah logam berat berbasis bahan alami dan thermosensitive polimer (chitosan-co-NIPAM) dan (AA-co-NIPAM). Logam berat akan teradsorpsi dan terdesorpsi secara reversible dengan perubahan suhu serta pH. Sehingga lebih efisien dan ekonomis dalam pengolahan limbah hasil elektroplating. Nipam-co-kitosan dan Nipam-co-asam akrilat dihasilkan dari reaksi polimerisasi, dengan menggunakan N,N,N’,N’-tetramethylethylenediamine (TEMED) dan Natrium sulfitsebagai akselerator, ammonium peroxodisulfate (APS) sebagai inisiator, dan N,N’-methylenebisacrylamide (MBAA) sebagai cross-linker dengan konsentrasi 10 mmol/L. Gel disintesis dalam labu leher tiga. Pertama-tama NIPAM, Asam akrilat, MBAA, dan TEMED dilarutkan ke dalam aquadest 100 disertai dengan pengadukan. Lalu di-purging untuk menghilangkan oksigen terlarut dengan menggunakan gas nitrogen. Kemudian ditambahkan APS yang telah dilarutkan dalam aquadest sebanyak 20 mL. Sintesa berjalan selama 6 jam dengan variasi suhu 10 oC, 30 oC, 50 oC, dan 70 oC. Silinder gel diperoleh dengan glass tube berukuran diameter 3 mm dan panjang 2 cm pasa saat sintesa. Gel hasil uji adsorpsi dipisahkan dari larutannya untuk dianalisa menggunakan Atomic Absorption Spectrophotometry (AAS). Dari hasil penelitian didapatkan hasil bahwa nilai swelling degree tertinggi pada gel Nipam-co-kitosan pada suhu sintesa 10 oC, sedangakamn pada Nipam-co-asam akrilat pada suhu sintesa 30 oC. Hasil swelling degree terendah pada gel Nipam-co-kitosan pada suhu sintesa 70 oC, untuk Nipam-co-asam akrilat pada suhu sintesa 70 oC. Sedangkan hasil SEM, ditemukannya porous pada ke dua gel saat suhus sintesa 30 oC, 50 oC, dan 70 oC.
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One of the environmental pollution that occurs due to electroplating industry activities is heavy metal waste containing hazardous and toxic materials (B3). These metals can be absorbed and accumulate in the human body so that it is necessary to treat waste to reduce heavy metal pollution. In this study using NIPAM, chitosan, and acrylic acid to make gel polymers. Development of reversible and porous adsorbent gels to adsorb and regenerate heavy metal waste based on natural and thermosensitive polymer materials (Chitosan-co-NIPAM) and (AA-co-NIPAM). Heavy metals will be adsorbed and decomposed reversibly with changes in temperature and pH. So that it is more efficient and economical in processing electroplating waste. Nipam-co-chitosan and Nipam-co-acrylic acid are produced from polymerization reactions, using N, N, N ', N'-tetramethylethylenediamine (TEMED) and Sodium sulfite as accelerators, ammonium peroxodisulfate (APS) as initiators, and N, N '-methylenebisacrylamide (MBAA) as a cross-linker with a concentration of 10 mmol / L. Gel is synthesized in three neck squash. First of all NIPAM, Acrylic acid, MBAA, and TEMED are dissolved in aquadest 100 accompanied by stirring. Then purged to remove dissolved oxygen using nitrogen gas. Then added 20 mL of APS which has been dissolved in aquadest. Synthesis runs for 6 hours with temperature variations of 10 oC, 30 oC, 50 oC, and 70 oC. Gel cylinders are obtained by. Swelling test was carried out by measuring the cylinder gel diameter before and after soaking in electroplating solution for 24 hours. The adsorption gel was separated from the solution to be analyzed using Atomic Absorption Spectrophotometry (AAS). The results showed that the highest swelling degree value in the Nipam-co-chitosan gel at the synthesis temperature of 10 oC, was at Nipam-co-acrylic acid at a synthesis temperature of 30 oC. The lowest swelling degree results in Nipam-co-chitosan gel at a synthesis temperature of 70 oC, for Nipam-co-acrylic acid at a synthesis temperature of 70 oC. While the results of SEM, found porous in the two gels when suhus synthesized 30 oC, 50 oC, and 70 oC.

Item Type:	Thesis (Diploma)
Additional Information:	RSKI 660.284 235 Gog p-1 2019
Uncontrolled Keywords:	NIPAM, kitosan, asam akrilat, adsorben gel
Subjects:	T Technology > TP Chemical technology > TP1140 Polymers
Divisions:	Faculty of Vocational > 24305-Industrial Chemical Engineering Technology
Depositing User:	gloria eudia gogani
Date Deposited:	12 Aug 2026 01:36
Last Modified:	12 Aug 2026 01:36
URI:	http://repository.its.ac.id/id/eprint/66178

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