Tourism planning is a necessary preliminary to tourism development.Planning should occur before tourism development.Yet commercial involvement in tourism planni
A facile step-by-step approach is developed for synthesizing the high-efficiency and magnetic recyclable Fe_3O_4@SiO_2@Ag@Ni trepang-like nanocomposites.This me
In this work, the zeolite-Y was ion-exchanged by introducing silver cations into the framework of microsized nano-porous sodium zeolite-Y using a liquid-phase i