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All Journal Jurnal Kimia dan Kemasan Jurnal Kimia dan Kemasan Jurnal Rekayasa Kimia & Lingkungan
Slamet Slamet
Universitas Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Pemanfaatan Limbah Fly Ash Untuk Penanganan Limbah Cair Amonia Slamet Slamet; Karina Kalmapuspita Imas
Jurnal Kimia dan Kemasan Vol. 39 No. 2 Oktober 2017
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24817/jkk.v39i2.3144

Abstract

Komposit abu terbang/TiO2 berhasil dibuat menggunakan TiO2 P25, abu terbang dari PT Pupuk Kaltim, dan surfaktan kationik hexadecyltrimethylamonium bromide (HTAB). Komposit dikarakterisasi Scanning Electron Microscopy-Energy Dispersive X-Ray Analysis (SEM-EDX) serta diuji coba untuk mendegradasi amonia dalam fotoreaktor. Perbandingan massa abu terbang dan TiO2 yang optimum adalah 2:1 (1 g/250 mL limbah cair amonia) dan dapat mengeliminasi amonia cair sebesar 79 % dalam 180 menit. pH optimum untuk mendegradasi amonia adalah pH 11. Hasil penelitian ini membuktikan bahwa abu terbang dapat dimanfaatkan untuk mendegradasi amonia cair di lingkungan dengan bantuan fotokatalis TiO2. Pada penelitian ini juga dibahas kinetika reaksi degradasi amonia yang mengikuti model kinetika Langmuir-Hinshelwood.
Pemanfaatan Limbah Fly Ash Untuk Penanganan Limbah Cair Amonia Slamet Slamet; Karina Kalmapuspita Imas
Jurnal Kimia dan Kemasan Vol. 39 No. 2 Oktober 2017
Publisher : Balai Besar Kimia dan Kemasan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.921 KB) | DOI: 10.24817/jkk.v39i2.3144

Abstract

Komposit abu terbang/TiO2 berhasil dibuat menggunakan TiO2 P25, abu terbang dari PT Pupuk Kaltim, dan surfaktan kationik hexadecyltrimethylamonium bromide (HTAB). Komposit dikarakterisasi Scanning Electron Microscopy-Energy Dispersive X-Ray Analysis (SEM-EDX) serta diuji coba untuk mendegradasi amonia dalam fotoreaktor. Perbandingan massa abu terbang dan TiO2 yang optimum adalah 2:1 (1 g/250 mL limbah cair amonia) dan dapat mengeliminasi amonia cair sebesar 79 % dalam 180 menit. pH optimum untuk mendegradasi amonia adalah pH 11. Hasil penelitian ini membuktikan bahwa abu terbang dapat dimanfaatkan untuk mendegradasi amonia cair di lingkungan dengan bantuan fotokatalis TiO2. Pada penelitian ini juga dibahas kinetika reaksi degradasi amonia yang mengikuti model kinetika Langmuir-Hinshelwood.
Improvement of the Efficiency of TiO2 Photocatalysts with Natural Dye Sensitizers Anthocyanin for the Degradation of Methylene Blue: Review Hendrini Pujiastuti; Indar Kustiningsih; Slamet Slamet
Jurnal Rekayasa Kimia & Lingkungan Vol 16, No 2 (2021): Jurnal Rekayasa Kimia & Lingkungan (December, 2021)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (731.013 KB) | DOI: 10.23955/rkl.v16i2.21314

Abstract

One of the potential methods utilized for dye degradation is photocatalitic, due to its low cost, highly effective, and environmentally friendly. Effectivenes of TiO2 photocatalysts can be enhanced by adding a dye sensitizer. Dye-sensitizer material absorbs visible light to facilitate electron excitation process. Addition of dye-sensitizer on TiO2 photocatalyst promotes it to be more responsive to visible light. Natural anthocyanin dyes are often used as sensitizers of TiO2 semiconductors. Anthocyanins are, usually in the purple to the red color range, a group of natural dyes found in the flowers, leaves, and fruit of plants. The essential principles of dye sensitization to TiO2 have been explored in this review. It is feasible to reduce the band gap energy in the TiO2 photocatalyst by modifying it using a natural dye sensitized modification. Dye sensitizers on TiO2 nanotubes plate have the potential to be employed in a dye degradation photocatalytic system
Recent Development and Application of TiO2 Nanotubes Photocatalytic Activity for Degradation Synthetic Dyes – A Review Euis Uswatun Hasanah; Indar Kustiningsih; Slamet Slamet; Maughal Ahmed Ali Baig
Jurnal Rekayasa Kimia & Lingkungan Vol 16, No 2 (2021): Jurnal Rekayasa Kimia & Lingkungan (December, 2021)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (598.671 KB) | DOI: 10.23955/rkl.v16i2.20739

Abstract

Synthetic dyes waste from textile industries, produce of the problematic pollutants in wastewater. TiO2 based photocatalysis are materials that exhibit excellent absorption behavior for organic compounds in wastewater due it properties including nontoxicity, high photocatalysis degradation ability, and chemical stabilities. However, several challenges exist regarding TiO2 nanotubes pure applications for dyes degradation such as poor affinity, high band gap energy, and difficulty of recovery and easy to recombination so it would decrease effectiveness of the photocatalysis process. Therefore, more design and optimization testing need to be conducted on the treatment conditions in order to reach higher removal efficiencies with lower costs. The modified physical properties by adding metal dopant, nonmetal, and sensitizer significantly enhanced photocatalysis activity. These parameters, which affect photocatalysis activity on degrade dyes waste pollutants, are discussed in the current review. As a result, the photocatalysis becomes more expected, and encourages to further research development.  Keywords: TiO2, nanotubes, degradation, synthetic, dyes
Co-Authors Euis Uswatun Hasanah Hendrini Pujiastuti Indar Kustiningsih Karina Kalmapuspita Imas Kustiningsih, Indar Maughal Ahmed Ali Baig