Silver/zinc oxide/carbon hollow composite photocatalyst as well as preparation method and application thereof

• Main Authors: CHENG QIN, WANG DONG, CHENG PAN, LIU YING, WAN YUCAI, GUO QIHAO, LU ZHENTAN, LIU KE, WANG WENWEN, LIU QIONGZHEN
• Format: Patent
• Language: Chinese; English
• Published: 18.02.2020
• 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 provides a silver/zinc oxide/carbon hollow composite photocatalyst as well as a preparation method and an application thereof. The preparation method comprises the steps: firstly, preparing a homogeneous solution of a zinc-containing inorganic salt, trimesic acid and sodium hydroxide, and obtaining a rod-like metal organic framework through a liquid-phase coprecipitation method; thencarrying out high-temperature calcination treatment to obtain a hollow carbon skeleton loaded with zinc oxide; and finally, adsorbing silver nitrate on the surface of the hollow carbon skeleton, andcarrying out light irradiation reduction to prepare the silver/zinc oxide/carbon hollow composite photocatalyst. The prepared silver/zinc oxide/carbon hollow composite photocatalyst has the advantagesthat under the ultraviolet light or visible light irradiation condition, the photocatalyst is applied to degradation of methyl blue, 4-nitrophenol and amoxicillin and inactivation of escherichia coli, the photocatalytic degrad