Journal
KOREAN JOURNAL OF CHEMICAL ENGINEERING
Volume 38, Issue 10, Pages 2034-2046Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
DOI: 10.1007/s11814-021-0846-9
Keywords
Rhodamine B; g-C3N4; MIL-53(Fe); Photocatalysis; Visible Light
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In this study, a g-C3N4/MIL-53(Fe) photocatalyst was synthesized and applied for the removal of Rhodamine B in water, showing high efficiency. The photocatalyst was characterized by various methods and a degradation mechanism for Rhodamine B was proposed.
Photocatalysis is usually considered as one of the most effective methods for treating non-biodegradable pollutants commonly found in textile wastewater. In this study, the photocatalyst of g-C3N4/MIL-53(Fe) was synthesized by the hydrothermal method and applied for the removal of Rhodamine B (RhB) in water. The photocatalytic material was characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller analysis, UV-Vis diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. The results showed that the g-C3N4 doped MIL-53(Fe) with 97 wt% of MIL-53(Fe) works effectively under visible light and the presence of oxidants (Na2S2O8). RhB removal efficiency can be more than 99% with 20 mg/L of RhB, 300 mg/L of catalyst, 200 mg/L of Na2S2O8, and pH 3. In addition, the photocatalytic degradation mechanism of RhB with g-C3N4/MIL-53(Fe) was also proposed, which could be improved and studied for a wide range of applications in textile wastewater treatment.
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