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All Journal Jurnal Pendidikan Fisika dan Sains (JPFS) International Journal of Research in Vocational Studies (IJRVOCAS)
Irani Pinanti
Politeknik Negeri Sriwijaya
Aerospace Engineering Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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Reduction of Phenol Levels in Textile Wastewater Using ZnO-NiFe2O4 Photocatalysts with Variations in Mass and Contact Time Yuniar; Yulianto Wasiran; Rizky Brillian; Irani Pinanti; Vita Rahmawati; Nursilvia Syahnaz
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 6 No. 2 (2026): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v6i2.536

Abstract

The textile industry in Indonesia has an important role in the economy, but the presence of phenol is also one of the main causes of environmental pollution. Therefore, innovative solutions are needed to reduce this problem. By using Zinc Acetate Dihydrate you can obtain ZnO compounds, which are included in the category of photocatalyst compounds. ZnO has the potential as a catalyst in chemical reactions to break down organic and inorganic compounds that are harmful to the environment. Apart from that, this research also uses the NiFe2O4 compound synthesized from NiCl2 and FeCl3 as a doping agent which can reduce the ZnO band gap, thereby increasing the efficiency of photodegradation of dangerous compounds such as phenol. The research methods used consisted of ZnO synthesis and ZnO-NiFe2O4 synthesis and photocatalyst activation testing with variations in contact time of 0, 60, 120, 180 minutes and variations in the weight of the ZnO-NiFe2O4 photocatalyst of 0.5; 0.75; 1 gram. The characteristics of the resulting ZnO-Zeolite show a crystal size of 24.98 nm and absorption bands of Zn-O/Ni-O and Fe-O at wave numbers of 455 cm-1 and 580 cm-1. To determine the effect of the effectiveness of the ZnO-zeolite photocatalyst on textile liquid waste, pH, Chemical Oxygen Demand (COD), Total Suspended Solid (TSS) analysis and reduction in the concentration of phenolic compounds were carried out. Results Reduction of TSS value from 235 mg/L to 25.3 mg/L with a reduction percentage reaching 89.3% and degradation of phenol content from 3.625 mg/L to 0.067 mg/L which occurred at a mass variation of 0.75 grams and a contact time of 180 minutes.
Degradasi Air Limbah Tekstil Menggunakan Fotokatalis ZnO-NiFe2O4 Ditinjau dari Sumber Cahaya dan Waktu Kontak Aisyah Yuniar; Irani Pinanti; Yuniar; Erika Dwi Oktaviani; Lety Trisnaliani
Jurnal Pendidikan Fisika dan Sains (JPFS) Vol 9 No 2 (2026): September - Februari
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Nahdlatul Ulama Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52188/jpfs.v9i2.2486

Abstract

Air limbah tekstil mengandung senyawa organik yang sulit terdegradasi sehingga berpotensi mencemari lingkungan apabila tidak diolah dengan baik. Penelitian ini bertujuan untuk mengkarakterisasi komposit ZnO–NiFe2O4 serta Mengevaluasi perubahan parameter pada variasi sumber cahaya dan waktu kontak terhadap perubahan pH, Total Suspended Solids (TSS), fenol, dan Chemical Oxygen Demand (COD) pada air limbah tekstil. Komposit ZnO–NiFe2O4 disintesis menggunakan metode kopresipitasi dan dikarakterisasi menggunakan X-Ray Diffraction (XRD) dan Fourier Transform Infrared Spectroscopy (FTIR). Proses fotokatalisis dilakukan menggunakan variasi sumber cahaya tanpa cahaya, cahaya matahari, UV 20 Watt, dan LED 15 Watt dengan waktu kontak 0-180 menit. Hasil karakterisasi menunjukkan terbentuknya komposit ZnO-NiFe2O4 dengan ukuran kristalit rata-rata 24,975 nm serta keberadaan ikatan logam–oksigen penyusun komposit. Hasil terbaik di antara kondisi yang diuji diperoleh pada penyinaran UV 20 Watt selama 180 menit dengan nilai pH 6,73, TSS 25,18 mg/L, kadar fenol 0,051 mg/L, dan COD 46,6 mg/L. Efisiensi degradasi fenol dan COD masing-masing mencapai 98,43% dan 88,97%. Hasil penelitian menunjukkan bahwa komposit ZnO-NiFe2O4 berpotensi digunakan sebagai fotokatalis untuk pengolahan air limbah tekstil.
Co-Authors Aisyah Yuniar Erika Dwi Oktaviani Lety Trisnaliani Nursilvia Syahnaz Rizky Brillian Vita Rahmawati Wasiran, Yulianto Yuniar