Preparation method for hydrogenated gray flower-like titanium dioxide

• Main Authors: LIU NIJUAN, FENG HANGKONG, GUO RUIBIN, WANG RUIJUAN, MO ZUNLI, ZHANG HONGJUAN, YAN MIN
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a preparation method for hydrogenated gray flower-like titanium dioxide. The preparation method for the hydrogenated gray flower-like titanium dioxide comprises the following steps: firstly using titanium salt as a precursor, using alcohol and acid as reaction mediums, using a surfactant as a structure modifier, preparing flower-like titanium dioxide through a solvothermalmethod, and calcining the flower-like titanium dioxide, after removing the surfactant on the surface of the flower-like titanium dioxide, annealing at a high temperature under a hydrogen atmosphere, and preparing the gray flower-like titanium dioxide. An X-ray diffraction diagram indicates that a crystalline phase of the prepared hydrogenated gray flower-like titanium dioxide is a rutile phase, anultraviolet visible absorption spectrogram indicates that the hydrogenated gray flower-like titanium dioxide has remarkable photoresponse in a visible light area, and the gray flower-like titanium dioxide after hydrotreating