Preparation method and application of slag-based hollow microsphere nanoreactor

• Main Authors: SHI JINYU, CAI XIUNAN, ZHANG HAO, YE CHANGQING, LUO ZHONGQIU, ZHOU XINTAO, YAN CUIRONG
• Format: Patent
• Language: Chinese; English
• Published: 07.06.2024
• 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 preparation method of a slag-based hollow microsphere nanoreactor, which specifically comprises the following steps: drying, ball-milling and sieving solid wastes rich in iron and silicon, placing in 0.5-3mol/L acid liquor, extracting at 20-120 DEG C, carrying out solid-liquid separation to obtain iron-containing filtrate and solid, washing the solid to be neutral, adding the solid into 0.5-3mol/L alkali liquor, treating at 50-150 DEG C, and drying to obtain the slag-based hollow microsphere nanoreactor. Adjusting the pH value of the reactant to 7-11, aging, carrying out solid-liquid separation, and washing and drying the solid to obtain SiO2 microspheres; the preparation method comprises the following steps: dispersing SiO2 microspheres in an ammonia water solution, then adding a Cu < 2 + >-containing solution, NH4Cl and an iron-containing filtrate, uniformly stirring and mixing, aging the mixture at 100-200 DEG C, carrying out solid-liquid separation, and washing and drying the sol