Population growth and industrial expansion have raised concerns about environmental pollution, especially due to the presence of toxic compounds in clean water sources such as drinking water, sea water and surface water, which adversely affect ecosystems. Most of the dyes used in various industries are toxic, carcinogenic, and harmful, resulting in negative effects on humans. Elimination of these toxins has been a major concern because it is difficult to degrade and eliminate dyes from wastewater sources because these dyes are inherently resistant. The use of nanostructured semiconductor photocatalysts has been shown to be very effective in destroying toxic organics. Therefore, a simple and economical coprecipitation method for the synthesis of CD sulfide photocatalyst is reported in this study, which does not use any organic solvent, has high yield, and only uses cadmium salt and thioglycolic acid (TGA) and other readily available and inexpensive precursors. The morphology, structure and optical properties of the materials were characterized. These materials were used for photocatalytic degradation of methyl orange dye, and the degradation process was understood by optimizing pH, initial dye concentration and photocatalyst concentration.

The relevant research results are titled “Controllable synthesis of nanostructured flower-like cadmium sulfides for photocatalytic degradation of methyl orange under different light sources ” is published in Journal of Water Process Engineering.

Fig. 1. Step-by-step schematic diagram for the preparation of CdS nanoparticles.

Fig. 2. a) FT-IR spectra of CC2 sample before calcination, b) FT-IR spectra related to CC2 sample after calcination, c) XRD pattern of CC2 synthesized CdS after calcination, and d) Raman spectra of CC2 synthesized CdS after calcination.

Fig. 3.FE-SEM micrographs of the synthesized CdS for CC2 sample.

Title:Controllable synthesis of nanostructured flower-like cadmium sulfides for photocatalytic degradation of methyl orange under different light sources

Author:Akbar Hojjati-Najafabadi, Elahe Farahbakhsh, Golnaz Gholamalian, Peizhong Feng, Fatemeh Davar, Tejraj M. Aminabhavi, Yasser Vasseghian, Hesam Kamyab, Hamed Rahimi

Link: https://authors.elsevier.com/c/1idAL7taLYXOSe

DOI: https://doi.org/10.1016/j.jwpe.2024.105002