Kinerja Adsorben Nzvi Dan Mxene Dalam Proses Penyisihan Antibiotik Enrofloxacin

Djayanti, Anissa Zelika (2026) Kinerja Adsorben Nzvi Dan Mxene Dalam Proses Penyisihan Antibiotik Enrofloxacin. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Residu antibiotik enrofloxacin (ENR) merupakan salah satu emerging contaminants yang banyak ditemukan pada air limbah peternakan akibat rendahnya tingkat metabolisme antibiotik di dalam tubuh hewan. Keberadaan ENR di lingkungan perairan berpotensi meningkatkan resistensi antimikroba, mengganggu ekosistem akuatik, serta sulit dihilangkan melalui pengolahan air limbah konvensional. Salah satu teknologi yang berpotensi diterapkan adalah adsorpsi menggunakan material berbasis nanoteknologi. Penelitian ini bertujuan menganalisis karakteristik nanopartikel nano zero-valent iron (nZVI) dan MXene sebagai media adsorpsi, menilai efektivitas kedua material dalam mereduksi konsentrasi enrofloxacin, serta mengevaluasi pengaruh pH dan waktu kontak terhadap proses adsorpsi. Penelitian dilakukan secara eksperimental menggunakan sistem adsorpsi batch. nZVI disintesis melalui metode reduksi kimia menggunakan FeSO₄·7H₂O dan NaBH₄, sedangkan MXene disintesis melalui metode in-situ etching menggunakan prekursor Ti₃AlC₂ dengan larutan LiF/HCl. Karakterisasi nZVI dilakukan menggunakan SEM–EDS dan FTIR, sedangkan MXene dikarakterisasi menggunakan SEM–EDX, FTIR, BET, dan zeta potential. Uji adsorpsi dilakukan pada variasi konsentrasi awal enrofloxacin sebesar 2, 5, dan 10 mg/L, pH 4, 6, dan 8, serta waktu kontak 5–60 menit. Konsentrasi enrofloxacin dianalisis menggunakan spektrofotometer UV–Vis dan dikonfirmasi menggunakan High Performance Liquid Chromatography (HPLC), kemudian dianalisis menggunakan model kinetika dan isoterm adsorpsi. Hasil karakterisasi menunjukkan bahwa sintesis nZVI dan MXene berhasil dilakukan. nZVI memiliki morfologi granular yang mengalami aglomerasi dengan dominasi unsur Fe dan O serta gugus Fe–O, sedangkan MXene memiliki struktur berlapis menyerupai akordion, gugus fungsi –OH, –O, dan –F, serta luas permukaan spesifik sebesar 16,17 m²/g yang didominasi mesopori. MXene menunjukkan kinerja adsorpsi terbaik dengan efisiensi penyisihan 82,05% pada konsentrasi awal 2 mg/L dan kapasitas adsorpsi maksimum 2,998 mg/g pada konsentrasi awal 10 mg/L. Proses adsorpsi mengikuti model kinetika pseudo-second-order dan isoterm Freundlich. Kondisi optimum diperoleh pada pH 4 untuk konsentrasi 2 mg/L, pH 8 untuk konsentrasi 5 dan 10 mg/L, serta waktu kontak 60 menit.
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Residues of the antibiotic enrofloxacin (ENR) are among the emerging contaminants frequently found in livestock wastewater due to the low metabolism of antibiotics in animals. Their presence in aquatic environments may promote antimicrobial resistance, disrupt aquatic ecosystems, and is difficult to remove using conventional wastewater treatment. Adsorption using nanotechnology-based materials has emerged as a promising alternative. This study aimed to analyse the characteristics of nano-zero-valent iron (nZVI) and MXene nanoparticles as adsorbents, evaluate their effectiveness in removing enrofloxacin, and investigate the effects of pH and contact time on the adsorption process. The study was conducted experimentally using a batch adsorption system. nZVI was synthesised through chemical reduction using FeSO₄·7H₂O and NaBH₄, while MXene was synthesised via in-situ etching of Ti₃AlC₂ using a LiF/HCl solution. nZVI was characterised by SEM–EDS and FTIR, whereas MXene was characterised by SEM–EDX, FTIR, BET, and zeta potential analyses. Adsorption experiments were performed at initial enrofloxacin concentrations of 2, 5, and 10 mg/L, pH values of 4, 6, and 8, and contact times ranging from 5 to 60 minutes. Enrofloxacin concentrations were determined using UV–Vis spectrophotometry and confirmed by High-Performance Liquid Chromatography (HPLC), followed by kinetic and adsorption isotherm analyses. The characterisation results confirmed the successful synthesis of both materials. nZVI exhibited a granular agglomerated morphology with dominant Fe and O elements and Fe–O functional groups. MXene displayed a layered accordion-like structure with –OH, –O, and –F functional groups and a specific surface area of 16.17 m²/g, predominantly composed of mesopores. MXene achieved the highest removal efficiency (82.05%) at an initial concentration of 2 mg/L and the maximum adsorption capacity (2.998 mg/g) at 10 mg/L. Adsorption followed the pseudo-second-order kinetic model and the Freundlich isotherm. The optimum conditions were pH 4 for 2 mg/L, pH 8 for 5 and 10 mg/L, and a 60-minute contact time.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Adsorpsi, Enrofloxacin, MXene, nZVI, Residu Antibiotik; Adsorption, Antibiotic Residues, Enrofloxacin, MXene, nZVI
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD420 Water pollution
Divisions:	Faculty of Civil Engineering and Planning > Environment Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Anissa Zelika Djayanti
Date Deposited:	27 Jul 2026 01:07
Last Modified:	27 Jul 2026 01:07
URI:	http://repository.its.ac.id/id/eprint/137748

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