公开(公告)号：US20220305475A1

公开(公告)日：2022-09-29

申请号：US17295458

申请日：2020-11-10

申请人： CHANGZHOU UNIVERSITY

发明人： Xiazhang LI ,  Haiguang ZHANG ,  Xini CHU ,  Jie ZHU ,  Xiangyu YAN ,  Shixiang ZUO ,  Chao YAO ,  Wenjie LIU ,  Huihui MAO

IPC分类号： B01J35/00 ,  B01J23/755 ,  B01J23/00 ,  B01J37/10 ,  C01C1/04 ,  B01J37/34

摘要： A method for preparing a silicate/carbon composite from attapulgite, and use of the silicate/carbon composite are disclosed. The preparation method includes: (1) with attapulgite as a raw material, preparing SiO2 with a special structure; (2) dispersing the prepared SiO2 in water to obtain a suspension, and subjecting the suspension to ultrasonic dispersion; dissolving a metal nitrate in the suspension, adding NH4Cl, and adding ammonia water dropwise to the suspension; and adding sucrose to obtain a suspension; (3) subjecting the suspension to microwave hydrothermal reaction; after the reaction is completed, centrifuging a resulting system; and separating a resulting solid; and (4) subjecting the solid to high-temperature calcination in a muffle furnace, and grinding a resulting product to obtain the silicate/carbon composite, which can be used in photocatalytic ammonia synthesis.