Ciprofloxacin removal by adsorption-photocatalysis effect of SrBi4Ti4O15

Febrianti, Anisa and Prasetyo, Anton ORCID: https://orcid.org/0000-0003-1575-8634 (2025) Ciprofloxacin removal by adsorption-photocatalysis effect of SrBi4Ti4O15. Presented at 15th International Conference on Green Technology (ICGT 2025), 29 Jul 2025 - 30 Jul 2025, Malang, Indonesia.

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Abstract

The SrBi4Ti4O15 compound has been reported to possess photocatalytic properties therefore it can applied to antibiotic waste treatment. In this research, we synthesized the SrBi4Ti4O15 compound using the molten salt method and then tested its ability to reduce the concentration of ciprofloxacin through adsorption and adsorption-photocatalysis mechanisms. The diffractogram showed that the target sample (SrBi4Ti4O15) was successfully synthesized; however, impurities in the form of compounds SrCO3, Na2Ti7O15, K2Ti6O12 and Bi12Cl14 were still detected. The SEM image shows that the sample particles are plate-like in shape; however, agglomeration is still observed. Meanwhile, the Kubelka-Munk equation calculation results showed that the SrBi4Ti4O15 compound has a band gap energy of 3.14 eV. The ciprofloxacin adsorption test demonstrated a removal efficiency of 64.73% for 90 minutes, while the synergistic adsorption–photocatalysis test achieved a degradation efficiency of 67.57% for 90 minutes. It indicated that the contribution of the photocatalytic mechanism to the reduction of ciprofloxacin concentration is small. It may correlate to high adsorption can inhibit photocatalysis mechanism.

Item Type:	Conference (Paper)
Keywords:	SrBi4Ti4O15; adsorption-photocatalysis; ciprofloxacin
Subjects:	03 CHEMICAL SCIENCES > 0306 Physical Chemistry (incl. Structural) > 030603 Colloid and Surface Chemistry
Divisions:	Faculty of Mathematics and Sciences > Department of Chemistry
Depositing User:	Dr Anton Prasetyo
Date Deposited:	20 May 2026 14:45

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