CAJ | 학술논문

以硫酸镁及氨水为原料,经静态反应制备出花球状氢氧化镁前驱体.然后经氢氧化钠溶液处理后,球形颗粒表面变得光滑,得到纯度较高的球形氢氧化镁产物,再经煅烧得到产物球形 MgO.实验过程采用 XRD、SEM 等分析手段对所得产品进行表征,并进行柠檬酸活性测试及氧化降解含酚废水应用.结果表明,600℃下煅烧2 h 能够得到较高活性的单分散性良好的球形 MgO,且在臭氧氧化降解含酚废水实验中能够明显促进苯酚的降解.
이류산미급안수위원료,경정태반응제비출화구상경양화미전구체.연후경경양화납용액처리후,구형과립표면변득광활,득도순도교고적구형경양화미산물,재경단소득도산물구형 MgO.실험과정채용 XRD、SEM 등분석수단대소득산품진행표정,병진행저몽산활성측시급양화강해함분폐수응용.결과표명,600℃하단소2 h 능구득도교고활성적단분산성량호적구형 MgO,차재취양양화강해함분폐수실험중능구명현촉진분분적강해.
Spherical magnesium hydroxide with a curd-like could be successfully prepared by magnesium sulfate and ammonia water.And its surface was formed by criss-crossed plate-particles.After processed by sodium hy-droxide solution,the products with smooth surface would be obtained,and the content of SO 2 -4 in the products would decrease substantially.And after being calcined,spherical magnesium oxide would be got.The obtained materials were characterized by X-ray diffraction,scanning electron microscopy,TG-DAT,tested of CAA and application performance.The results showed that the products spherical magnesium oxide with high activity and good monodispersity could been obtained calcining at 600 ℃ for 2 h,and would promote degradation of phenol in the catalytic ozonation experiments.