Surfactant-Assisted Regulation of WS/Tourmaline Microstructures for Excellent Photocatalytic Performance.

The controllable electrical and optical properties of two-dimensional tungsten disulfide (WS) attracted much attention in photocatalysis, but commercial development has been severely restricted by their restacking properties. Surfactant-assisted synthesis techniques can be considered as an effective option to break this bottleneck. In this work, the effect of surfactants including sodium dodecylbenzene sulfonate (SDBS), hexadecyltrimethylammonium bromide (CTAB), and polyvinylpyrrolidone (PVP) on the microstructure of WS/tourmaline composites prepared by coupled hydrothermal and calcination methods was explored.

A novel highly dispersed calcium silicate hydrate nanosheets for efficient high-concentration Cu adsorption.

Currently, the low cost and effective purification toward heavy metal ions in wastewater has garnered global attention. Herein, we used hydrothermal method to prepare highly dispersed calcium silicate hydrate in fluorite tailings. And the stacking thickness of calcium silicate hydrate layered morphology was less than 5 nm.