CAJ | 학술논문

通过原位复合的方法制备不同配比的g-C3 N4/BiVO4复合光催化剂,利用傅里叶红外光谱( FTIR)、X-射线衍射( XRD)、扫描电子显微镜( SEM)、透射电子显微镜( TEM)、紫外-可见光漫反射光谱( UV-Vis DRS)和N2吸附-脱附对所制备的材料进行表征。并通过光催化降解有机染料罗丹明B对其光催化活性进行测试。结果表明,部分g-C3 N4附着在BiVO4表面,g-C3 N4/BiVO4复合光催化剂比纯的BiVO4光催化效果要好,并且确定了最佳复合比例,同时对复合光催化剂性能提高的机理进行了讨论。
통과원위복합적방법제비불동배비적g-C3 N4/BiVO4복합광최화제,이용부리협홍외광보( FTIR)、X-사선연사( XRD)、소묘전자현미경( SEM)、투사전자현미경( TEM)、자외-가견광만반사광보( UV-Vis DRS)화N2흡부-탈부대소제비적재료진행표정。병통과광최화강해유궤염료라단명B대기광최화활성진행측시。결과표명,부분g-C3 N4부착재BiVO4표면,g-C3 N4/BiVO4복합광최화제비순적BiVO4광최화효과요호,병차학정료최가복합비례,동시대복합광최화제성능제고적궤리진행료토론。
g-C3 N4/BiVO4 composite photocatalysts with different g-C3 N4 contents were prepared by in-situ synthesis method. The structure and morphology of the as-obtained photocatalysts were characterized by FTIR,XRD,SEM,TEM,UV-Vis DRS and N2-adsorption-desorption. The photocatalytic activity was evalu-ated by degradating the organic dye Rhodamine B. The results indicated that numbers of g-C3 N4 particles were appeared on the surface of BiVO4 ,and the photocatalytic activities of g-C3 N4/BiVO4 composites were obviously superior to pure BiVO4 ,and an optimal content of g-C3 N4 was discovered. The mechanism of en-hanced photocatalytic activities of g-C3 N4/BiVO4 composites was also discussed.