Bismuth/bismuth titanate heterojunction hollow nanosphere and preparation method and application thereof

• Main Authors: WANG XUEPENG, GUO LIPING, WANG SHIJIE, JIANG YONGWANG, ZHOU WEI, LI ZHENZI
• Format: Patent
• Language: Chinese; English
• Published: 11.11.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention belongs to the technical field of new materials, and relates to a bismuth/bismuth titanate heterojunction hollow nanosphere and a preparation method and application thereof. The preparation method comprises the following steps: adding bismuth salt and tetrabutyl titanate into an organic solvent, uniformly mixing, adding an inorganic alkali solution to generate a precipitate, sequentially adding organic amine and organic acid, carrying out solvent heat treatment to obtain bismuth titanate hollow nanospheres, and carrying out heat treatment reduction on the bismuth titanate hollow nanospheres by using hydroboron in an inert atmosphere to obtain the bismuth titanate hollow nanospheres. The bismuth/bismuth titanate heterojunction hollow nanosphere prepared by the preparation method disclosed by the invention not only has remarkable activity of photocatalytic degradation of tetracycline hydrochloride, but also can enable metal and a photocatalytic material to be combined more tightly, and has more ex