CAJ | 학술논문

通过水热法制各了一种新型光催化剂BiOCl粉末,并采用X射线衍射(XRD)、扫描电子显微镜(SEM)和热重-差热分析(TG-DTA)对其进行表征.测试结果表明,BiOCl粉末呈四方晶型结构,由均一的片状微粒组成.BiOCl粉末在40～600℃的温度范围内结构保持稳定.以氙灯照射下的水中甲基橙为目标降解物,对BiOCl粉末的光催化活性进行研究,考察催化剂用量对光催化活性的影响,并将BiOC1与TiO2-P25的光催化性能进行比较.实验结果表明:BiOCl光催化剂的适宜用量为1.0g/L,在相同的实验条件下BiOCl催化剂的催化活性与TiO2-P25的相当.
통과수열법제각료일충신형광최화제BiOCl분말,병채용X사선연사(XRD)、소묘전자현미경(SEM)화열중-차열분석(TG-DTA)대기진행표정.측시결과표명,BiOCl분말정사방정형결구,유균일적편상미립조성.BiOCl분말재40～600℃적온도범위내결구보지은정.이선등조사하적수중갑기등위목표강해물,대BiOCl분말적광최화활성진행연구,고찰최화제용량대광최화활성적영향,병장BiOC1여TiO2-P25적광최화성능진행비교.실험결과표명:BiOCl광최화제적괄의용량위1.0g/L,재상동적실험조건하BiOCl최화제적최화활성여TiO2-P25적상당.
The BiOCl powders prepared by the hydrolysis method were investigated with the X-ray diffractometry (XRD),scanning electron microscopy (SEM) and differential thermal analysis (TG-DTA).The results show that the powders are of the tetragonal primitive crystal structure,composed of homogeneous particles of fine ferrite plates,and stable in the temperature range of 40-600 ℃.In addition,the photocatalytic activity of BiOC1 powders was evaluated by methyl orange (MO) in aqueous solution illuminated by xenon-lamp,and the effect of the BiOCl amount on the photocatalytic activity was investigated.Moreover,the photocatalytic properties of BiOCl and TiO2-P25 were also compared.The results show that the favorite amount of BiOCl powders is 1.0 g/L for the MO degradation,and the photocatalytic activity of the BiOCl catalyst is comparable to the TiO2-P25 catalyst under the same experiment condition.