Platinum-cluster-loaded mesoporous black titanium dioxide nanosheet photocatalyst and preparation method thereof

• Main Authors: WANG XUEPENG, GUO LIPING, WANG SHIJIE, ZHOU WEI, WU JIAXING, LI ZHENZI
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention belongs to the technical field of advanced materials and hydrogen energy sources, and relates to preparation of a photocatalyst for hydrogen production through water decomposition, in particular to a platinum-cluster-loaded mesoporous black titanium dioxide nanosheet photocatalyst and a preparation method thereof. The preparation method comprises the following steps: calcining a mesoporous titanium dioxide nano-sheet material in a hydrogen atmosphere to obtain a mesoporous black titanium dioxide nano-sheet material, dispersing the mesoporous black titanium dioxide nano-sheet material in a chloroplatinic acid solution, freezing by adopting liquid nitrogen, and then carrying out a photoreduction reaction on the frozen material by adopting a filtered light source to obtain the mesoporous black titanium dioxide nano-sheet material. And melting and separating. According to the preparation method, the lamellar structure of the titanium dioxide nanosheet can be maintained, agglomeration of metal platin