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All Journal International Journal of Evaluation and Research in Education (IJERE) DIDAKTIKA BIOLOGI: Jurnal Penelitian Pendidikan Biologi Indonesian Journal of Science and Mathematics Education Jambura Journal of Community Empowerment Jurnal Mandala Pengabdian Masyarakat Didaktika: Jurnal Kependidikan Sciening : Science Learning Journal INSECTA: Integrative Science Education and Teaching Activity Journal Journal of Education Research Jurnal KALANDRA Jurnal Pengabdian Masyarakat Indonesia Analit: Analytical And Environmental Chemistry SAINSMAT: Jurnal Ilmiah Ilmu Pengetahuan Alam
Haryanti Putri Rizal
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Agriculture, Biological Sciences & Forestry Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences Other

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SINTESIS KOMPOSIT KITIN-SILIKA (KI-SIL) DAN APLIKASINYA SEBAGAI ADSORBEN LOGAM Fe (III) DAN Cr (III) Hasri Hasri; Diana Eka Pratiwi; Muftihatu Rahma; Satria Putra Jaya Negara; Marlina Ummas Genisa; Haryanti Putri Rizal
Sainsmat : Jurnal Ilmiah Ilmu Pengetahuan Alam Vol. 14 No. 01 (2025): Volume 14 Nomor 1 (Maret 2025)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35580/45m24r41

Abstract

Rice husk waste can be utilized as a source of silica with a silica content of 86.90-97.30 %, which has potential as a silica-based material. Similarly, chitin sources are abundant in crustacean shells (crabs, shrimps, lobsters etc.), the combination of chitin-silica (Ki-Sil) as a composite is very interesting to study. So this research aims to synthesize Ki-Sil composite and its application as adsorbent of Fe(III) and Cr(III) metal ions. At first, the extraction of rice husk silica was carried out and then the synthesis of Ki-Sil composites. The obtained composite was optimized for pH with pH variation (2-6), adsorption capacity with concentration variation (50-150 ppm) and adsorption selectivity test of both metal ions with ratio (0.25:0.75; 0.75:0.25 and 1:1). Analysis of Ki-Sil functional groups using FTIR shows that the synthesis has been successful with wave numbers that match the standard and morphological analysis using SEM which shows the composite material is a porous material. The results obtained optimum pH 4 for adsorption of both target metals. The adsorption capacity of Fe(III) metal was 31.49 mg/g; 69.69mg/g; 89.83 mg/g and 138.57 mg/g, respectively. And the adsorption capacities of Cr(III) metal were 37.80 mg/g; 70.86 mg/g; 89.98 mg/g and 138.84 mg/g, respectively. The selectivity test results showed that Ki-Sil adsorbed Fe(III) metal by 0.9820 mmol and Cr(III) metal by 0.9949 mmol. It is concluded that the Ki-Sil composite is more selective in adsorbing Cr(III) metal.
Co-Authors Aira, Cinta Dian Amaliah, Resky Andi Agussalim, Andi Aulia Rahmadhani Aulia Rahmadhani Ayu Indayanti Ismail Dea Santika Rahayu Diana Eka Pratiwi Djohar Maknun Ester Caroline Wowor Eva Indriyani Fauziah A Fitra Sari, Fitra Hasri Hasri Hasri Hasri Hasri Hasri Hasri Hasri ummas Ilham S, Muhammad Indriyani, Eva Jumriani, Jumriani Kamaluddin, Muh Arif Marlina Ummas Genisa Maryono Maryono Maryono Maryono Meili Yanti Muftihatu Rahma Muh Arif Kamaluddin Muhammad Ilham S Saeful Bahri Satria Putra Jaya Negara Sitti Faika Sitti Faika Sitti sapiah Tambing, Afriani Aris Tuada, Rasydah Nur Ummas, Hasri Wahyuni Adam WAHYUNI, CITRA Widya Anjelia Tumewu Yana Sambeka