Sintesis Komposit Ampas Teh/TiO2 melalui Metode Solid-State Dispersion dan Aplikasinya dalam Penurunan Kosentrasi Metilen Biru
DOI:
https://doi.org/10.59563/djtech.v7i1.368Keywords:
Ampas Teh, Degradasi, Metilen Biru, TiO₂,Abstract
Peningkatan limbah zat warna dari industri tekstil menjadi salah satu permasalahan lingkungan yang perlu ditangani secara efektif dan ramah lingkungan. Salah satu upaya yang dapat dilakukan adalah pemanfaatan limbah biomaterial sebagai adsorben yang dikombinasikan dengan material fotokatalis. Penelitian ini bertujuan untuk mensintesis dan mengkaji kinerja komposit Ampas Teh/TiO₂ dalam proses penurunan konsentrasi Metilen Biru melalui mekanisme adsorpsi dan fotodegradasi. Komposit disintesis menggunakan metode Solid-State Dispersion (SSD) dengan variasi perbandingan massa Ampas Teh dan TiO₂. Karakterisasi material dilakukan menggunakan Fourier Transform Infrared (FTIR) dan UV–Visible Spectroscopy. Hasil FTIR menunjukkan keberadaan gugus fungsi organik dari ampas teh dan pita Ti–O–Ti dari TiO₂. Uji fotodegradasi Metilen Biru menunjukkan bahwa komposit Ampas Teh/TiO₂ mampu menurunkan absorbansi zat warna secara lebih stabil dibandingkan sampel tunggal, dengan komposisi 8:2 memberikan kinerja terbaik. Hasil penelitian ini menunjukkan bahwa komposit Ampas Teh/TiO₂ berpotensi digunakan sebagai material alternatif dalam pengolahan limbah zat warna.
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