Method for preparing molybdenum-doped titanium dioxide photocatalyst through microwave hydrothermal-sonochemistry

• Main Authors: LI LINGBO, MA ZHIYU, LIU CHENHUI, WANG YONGLI, ZHU XIONGJIN, WANG QIAN, YANG QINSHENG
• Format: Patent
• Language: Chinese; English
• Published: 20.01.2023
• 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 discloses a method for preparing a molybdenum-doped titanium dioxide photocatalyst through microwave hydrothermal-sonochemistry, and relates to the technical field of photocatalyst material preparation. The method comprises the following steps: uniformly mixing tetrabutyl titanate, absolute ethyl alcohol, dilute nitric acid and ammonium molybdate tetrahydrate to prepare a precursor solution; adding the precursor solution into a microwave hydrothermal reaction kettle for microwave hydrothermal reaction, and cooling after the reaction is finished; and putting the solid-liquid mixture in the reaction kettle into an ultrasonic reaction instrument for reaction, centrifuging through a centrifugal machine, repeatedly washing, drying and grinding. The prepared Mo-TiO2 photocatalyst is high in crystallinity, small in crystal grain, large in specific surface area, good in dispersity and uniform in particle size, the photocatalytic performance can be effectively improved due to the synergistic effect of mo