T. L. Yang^a, P. Y. Lin^b, Y. S. Fu^c, C. Y. Luo^c, K. C. Hsu^a,*

Chalcogenide Letters, Vol.22, No.7, pp. 625-636, 2025, DOI:10.15251/CL.2025.227.625

Abstract In this study, high-crystallinity zinc sulfide (ZnS) at the nanoscale was synthesized using a combination of electrospinning and hydrothermal techniques. Initially, polyvinyl butyral (PVB)/ZnS composite nanofibers were fabricated via electrospinning. Subsequently, a hydrothermal reaction was employed to induce a dissolution-recrystallization mechanism, enabling the gradual formation of highly crystalline ZnS nanoparticles. The structural, morphological, and compositional characteristics of the ZnS nanoparticles were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM) and energy-dispersive X-ray spectroscopy (EDS). Finally, the photocatalytic activity of three different ZnS materials—synthesized via electrospinning, hydrothermal treatment, and hydrothermal-assisted electrospinning—were More >

R. N. Mondal^a,b,*, S. Sahab¹

Chalcogenide Letters, Vol.21, No.10, pp. 771-783, 2024, DOI:10.15251/CL.2024.2110.771

Abstract Cu₂ZnSnS₄ nanocrystals (CZTS NCs), MoS₂ nanosheet (NS) and MoS₂-CZTS nanocomposite (NC) have been synthesized using solvothermal route. Structural characterization of samples have been done by XRD, Raman spectroscopy, HR-TEM. Samples have optically characterized by UV-Vis absorption, photoluminescence (PL) and time co-related single photon counting (TCSPC) study. The XRD, HR-TEM and Raman spectroscopy established tetragonal kesterite phase for both CZTS NCs and MoS2-CZTS NC. Enhancement of efficiency of CZTS NCs to degrade methylene blue (MB) dye, illuminated by visible light, have been observed by loading 1 wt.% MoS₂ NS and found to be ~100% in only 15 minutes. More >

Chao Wei^1,2, Zhongjin Peng², Yunfei Chen³, Yanhai Cheng^1,*

FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 973-984, 2022, DOI:10.32604/fdmp.2022.019772 - 06 April 2022

Abstract Ag₃PO₄ exhibits a high photocatalytic activity if exposed to visible light, however, it displays bottlenecks such as poor cycle-stability and mediocre ability to degrade methyl orange (MO) because of limited adsorption of MO molecules onto its surface. In this study, nano TiO₂ prepared by a one-step method was combined with Ag₃PO₄ to form a TiO₂@Ag₃PO₄ heterojunction in order to improve this material both in terms of photocatalysis and photostability. After adding a KH-570 silane coupling agent, the photocatalytic performance of TiO₂@Ag₃PO₄ could be improved even further, with the degradation rate of MO maintained at more than 90% after More >