CAJ | 학술논문

以硝酸铟作为前驱体,在蒸馏水和乙二胺的混合溶剂中制备出了InOOH纳米晶,详细地考察了反应溶剂及温度对终产物的影响.利用X射线粉末衍射(XRD)、紫外-可见漫反射光谱(UV-Vis DRS)、扫描电子显微镜(SEM)和透射电镜(TEM)对样品的晶相结构、光吸收性质及其形貌进行了详细的表征.考察了样品在紫外光下及可见光下对液相中的染料罗丹明B(RhB)的光催化降解性能.发现InOOH在紫外光下可以彻底分解RhB,而在可见光下只能使RhB脱色.InOOH在紫外光和可见光下对RhB的分解遵循两种不同的反应机制.
이초산인작위전구체,재증류수화을이알적혼합용제중제비출료InOOH납미정,상세지고찰료반응용제급온도대종산물적영향.이용X사선분말연사(XRD)、자외-가견만반사광보(UV-Vis DRS)、소묘전자현미경(SEM)화투사전경(TEM)대양품적정상결구、광흡수성질급기형모진행료상세적표정.고찰료양품재자외광하급가견광하대액상중적염료라단명B(RhB)적광최화강해성능.발현InOOH재자외광하가이철저분해RhB,이재가견광하지능사RhB탈색.InOOH재자외광화가견광하대RhB적분해준순량충불동적반응궤제.
Nanocrystalline InOOH photocatalyst was synthesized from In (NO_3)_3 and ethylenediamine via a solvothermal method. The obtained sample was characterized by X-ray diffraction(XRD), UV-Vis diffuse reflectance spectroscopy(DRS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). InOOH can degrade rhodamine B (RhB) to CO_2 and H_2O under UV irradiation, while it can only degrade RhB to de-ethylated product under visible-light irradiation. The photocatalytic degradation of RhB follows two different reaction mechanisms under UV light and visible light.