Method for synthesizing nano zinc oxide hexagonal hollow tube photocatalyst based on light irradiation

• Main Authors: PAN HAIBO, LI CHAOCHAO, XU YUANJIE, YING MEIHUI, WENG XUEHUA, PENG QI
• Format: Patent
• Language: Chinese; English
• Published: 23.11.2018
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC 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 synthesizing a nano zinc oxide hexagonal hollow tube photocatalyst based on light irradiation. The method comprises the following steps: taking Zn(CH3COO)2.2H2O and NaOH as raw materials, dissolving the raw materials into deionized water respectively to form uniform solutions; dropwise adding the NaOH solution into a zinc acetate solution to form emulsion; standing and ageing for 30 minutes at room temperature after ultraviolet-light irradiation, vacuum-filtering and drying to form a ZnO precursor; roasting the ZnO precursor for 1 h at a temperature of 400DEG C, thereby obtaining the nano zinc oxide hexagonal hollow tube photocatalyst. The obtained nano zinc oxide hexagonal hollow tube photocatalyst has the advantages of being good in dispersion, highin catalysis, good in stability and the like, can be used for degrading an organic dye Congo red (CR) in a visible-light photocatalysis mode, has relatively high photocatalytic degradation efficiencyon the Congo red dye, and h