Facile synthesis of nanostructured ZnCuBi-NO3/SO4 layered double hydroxides for photocatalytic degradation of methylene blue
Makaleler > Tam Makale · 2022
Yazarlar: Abdul Nabi Jakhrani, Aydan ELÇİ, Ali Nawaz Siyal, Adnan Ahmed, Baddar Ul Ddin Jamali, Abdul Ghani Jakhrani, Naeem Piyaro Butt, Saima Qayoom Memon
Desalination and Water Treatment, Uluslararası, Scopus, 2022, cilt 262, ss 248-255
Özet
ABSTRACT In this study, nanostructured ZnCuBi-NO 3 /SO 4 layered double hydroxides (LDH) was developed followed by a co-precipitation approach using precursors such as ZnSO 4 ·7H 2 O, CuSO 4 ·5H 2 O and Bi(NO 3 ) 3 ·5H 2 O, and well characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy-scanning electron microscopy, and thermogravimetric analysis techniques. Using absorbance data, Tauc plot was plotted and band gap energy of ZnCuBi LDH was calculated and found to be 1.73 eV. The material was applied as an efficient photocatalyst for degradation of methylene blue (MB) under visible light of a 100 W Tungsten lamp at optimum factors such as concentration of MB 10 mg L –1 , pH 8.0, catalyst dosage 10 mg, and shaking time of 30 min at room temperature. The degradation efficiency of the material was calculated and found to be ≥95.5% with RSD ≤4%. The method worked well on the synthetic solutions of MB, prepared in tap water, wastewater, and seawater of different concentrations.