Preparation and Photocatalytic Properties of g-C_3N_4 /TiO_2 Hybrid Composite

g-C3N4/TiO2 composite were prepared by hydrolysis of Ti（OC4Hn9） 4 and the precursors of g-C3N4 at room temperature and annealing in nitrogen atmosphere.X-ray diffraction results revealed that all the products were anatase structure.The chemical nature of O,N of the g-C 3N4/TiO2 were identified by X-ray photoelectron spectroscopy,presenting N-Ti-O and N-Ti-N doping status of the composite.The g-C3N4 /TiO2 composite showed better photocatalytic activity for the UV and visible-light degradation of Rhodamine B.

Versatile Ti_(3)C_(2)T_(x)MXene for free-radical scavenging

MXene,as an emerging two-dimensional(2D)material with ultrathin structure and fascinating physiochemical properties,has been widely explored in broad applications.Versatile functions of MXenes are continuously explored.This work presents distinctive feature of MXene-Ti_(3)C_(2)T_(x)nanosheets for free-radical(FRs)scavenging that never reported before.We demonstrated the mechanism and equation in regard to the reaction between Ti_(3)C_(2)T_(x)and H_(2)O_(2),which was applied to design colorimetric H_(2)O_(2)strip assay with good performance.The good FRs scavenging capability of Ti_(3)C_(2)T_(x),including a series of reactive oxygen species(ROS)and reactive nitrogen species(RNS),was systemically confirmed.The antioxidation capability of Ti_(3)C_(2)T_(x)for protecting cells from oxidative damage was demonstrated using the oxidative damage model of alpha mouse liver 12(AML-12)cells.This original work provides huge opportunities for MXenes in FR-related biomedical applications.

Synthesis,Al^(3+)/Mg^(2+) Intercalation and Structure Study of Graphite-like Carbon Nitride

Graphite-like carbon nitride （g-C3N4） was synthesized in large quantities at 300 ℃ under nitrogen by a solidstate reaction route. Furthermore, Al3＋ and Mg2＋ intercalation of g-CaN4 was performed by an electrochemical method. The starting C3N4 materials and intercalation compounds were characterized by X-ray powder diffraction, Fourier transform infrared spectra, thermogravimetry, transmission electron microscopy, and X-ray photoelectron spectroscopy. The possible structure model of intercalation compounds was proposed. The cation-π interactions and electrostatic interactions were used to explain the changes of microstructure and chemical bonds before and after intercalation.

Synthesis, Characterization and Gas Sensing Properties of In(OH)_3 and In_2O_3 Nanorods through Carbon Spheres Template Method

Poly-crystalline In（OH） 3 nanorods have been successfully prepared via a urea-based precipitation using the colloidal carbon spheres as the templates. After calcinations, the resulted In 2 O 3 nanorods with poly-crystalline structure were fabricated. Structure and morphology of the product were characterized by X-ray diffraction （XRD）, and transmission electron microscopy （TEM）. The possible formation process was schemed. The sensor gas properties towards C 2 H 5 OH and CO were examined.

Porous Indium Oxide Nanorods: Synthesis, Characterization and Gas Sensing Properties

Porous indium oxide nanorods have been synthesized by calcination of indium hydroxide, which were prepared through a simple sol-gel and aging process at low temperature in the presence of sodium dodecyl sulfate （SDS）. X-ray diffraction （XRD）, scanning electron microscopy （SEM）, and high-resolution transmission electron microscopy （HRTEM） were adopted to characterize the phase composition and morphology of the resulted samples. The sensing properties towards H2 were examined at 340℃, which showed better sensitivity and quick response/recovery merits.