An Ultrasound-Fenton Process for the Degradation of 2,4,6-Trinitrotoluene.

2,4,6-Trinitrotoluene (TNT), one of the main compounds in ammunition wastewater, is harmful to the environment. In this study, the treatment efficiency of 2,4,6-TNT by different treatment processes, including ferrous ion (Fe), hydrogen peroxide (HO), Fenton, ultrasound (US) irradiation, US + Fe, US + HO and US-Fenton process, was compared. The results showed that US-Fenton was the most effective among all methods studied.

Enhanced carriers separation in novel in-plane amorphous carbon/g-CN nanosheets for photocatalytic environment remediation.

Although carbon-based materials/g-CN heterostructure with an up-down structure in space can inhibit the recombination of charge carriers, the electron transfer is still suppressed by the interlayer van der Waals force. Herein, amorphous carbon is successfully introduced into the g-CN nanosheet (CNS) by a self-conversion process to form an in-plane heterostructure of amorphous carbon/g-CN (CNSC). Kelvin probe atomic force microscopy (KPFM) and density functional theory (DFT) confirm that g-CN and amorphous carbon are in the same plane, which can generate the surface electric field of CNSC, providing a driving force for the transfer of electrons from g-CN to amorphous carbon.

Highly efficient heterostructured stannic disulfide/stannic anhydride hybrids: Synthesis, morphology, and photocatalytic reduction of chromium (VI) under visible light.

Highly efficient heterostructured stannic disulfide/stannic anhydride (SnS/SnO) hybrids with different morphologies were fabricated via a two-step hydrothermal method. The composition and morphology of the obtained products were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and UV-vis diffuse reflectance spectroscopy (DRS). The SEM images showed that core-shell structured SnS/SnO nanotubes and hierarchical SnS flowers decorated with SnO particles were fabricated under different synthetic conditions.