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All Journal Chemistry Indonesian Journal of Chemical Research
Ayu Qurota A'yun
Chemical Engineering Study Program, Faculty of Engineering, Muhammadiyah University of Jember, Jember, Jl. Karimata No. 49, Jember 68124, Indonesia
Biochemistry, Genetics & Molecular Biology Chemistry Engineering Environmental Science

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Synthesis of Silica from Chitosan-Modified Sugarcane Bagasse and GPTMS Binding Compound as an Adsorbent for Remazol Yellow Dye Waste Ayu Qurota A'yun; Yuni Susanti; Aulia Rifki Maulana Yusufi; Hilmi Naufal Human; Lintang Miftahul Rizki
Indonesian Journal of Chemical Research Vol 14 No 1 (2026): Edition for May 2026
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2026.14-ayu

Abstract

Remazol Yellow, a synthetic dye waste, is carcinogenic and mutagenic, necessitating waste treatment. One of the methods used is adsorption with silica adsorbents and sugarcane bagasse. Silica has unusual features, including mechanical stability at high temperatures, strong ion-exchange capacity, and a large surface area with broad pores. The inclusion of chitosan increases the number of active sites on silica as an adsorbent. The inclusion of the binding agent glycidoxypropyltrimethoxysilane (GPTMS) can improve the link between silica and chitosan as the dye adsorbent concentration increases. The FTIR characterization results indicate absorption bands at 451 cm-1, 796 cm-1, and 958 cm-1, corresponding to the spectra of silica and chitosan chemical groups. The XRD analysis revealed crystalline silica in the form of the cristobalite phase. SEM analysis revealed that the binding chemical increased the surface porosity of the silica-chitosan adsorbent. The optimal adsorption conditions for utilizing chitosan-modified silica adsorbent are a pH of 2 and a contact time of 2 hours. An adsorbent mass of 0.5 g, with an adsorption capacity value of 2.17 mmol/g, influences the growth in adsorption capacity, as does an adsorbate concentration of 80 ppm, with an adsorption capacity value of 2.8 mmol/g.
Co-Authors Aulia Rifki Maulana Yusufi Hilmi Naufal Human Lintang Miftahul Rizki Yuni Susanti