Study on the MOF Frame Pt-TiO 2 Hybrid Photocatalyst and Its Photocatalytic Performance

Xueqiao Mei, Han Yuan and Chunhu Li ()
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Xueqiao Mei: College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Laoshan District, Qingdao 266100, China
Han Yuan: College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Laoshan District, Qingdao 266100, China
Chunhu Li: College of Chemistry and Chemical Engineering, Ocean University of China, 238 Songling Road, Laoshan District, Qingdao 266100, China

Sustainability, 2023, vol. 15, issue 2, 1-14

Abstract: As the efficient catalysts are synthesized by a simple strategy, photocatalysis offers a sustainable route to solve the problem of environmentally sound treatment of industrial dye wastewater. Herein, Pt-doped TiO 2 with MIL-125 as the backbone has been fabricated using thermal synthesis. The photocatalytic efficiency of the synthesized catalyst samples was tested using Rhodamine B (RhB) as the contaminant model. The physicochemical properties of the solid specimens were characterized using XRD, SEM, TEM, BET and EDX techniques. The photocatalytic degradation experiments showed that the photocatalytic degradation of RhB by M-Pt-TiO 2 was 98.97% after 30 min of degradation. The radical capture experiments showed that superoxide radicals and conduction band electrons as reactive oxygen species played a major role in the degradation process. After four cycles, the photocatalytic activity of M-Pt-TiO 2 decreased from 98.4% to 94.9%, indicating that the photocatalyst sample had good photocatalytic stability.

Keywords: metal-organic framework; Pt-TiO 2; photocatalysis; dye wastewater; Rhodamine B (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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