Facile synthesis of g-Cub>3ub>Nub>4ub>/BiVOub>4ub> heterojunctions with enhanced visible light photocatalytic performance

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• 作者：Jiang Cheng^a ; Xuelian Yan^a ; ^b ; Qionghua Mo^a ; ^c ; Bitao Liu^a ; ^{liubitao007@163.com" class="auth_mail" title="E-mail the corresponding author} ; ^{showame@aliyun.com" class="auth_mail" title="E-mail the corresponding author} ; Jun Wang^a ; Xin Yang^a ; Lu Li^a
• 关键词：G-C3N4/BiVO4 ; Photocatalysis ; Visible light ; Electrospinning
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：43
• 期：1
• 页码：301-307
• 全文大小：1075 K

文摘

A g-Cub>3ub>Nub>4ub>/BiVOub>4ub> composite photocatalyst with enhanced photocatalytic activity and photoelectrochemical (PEC) performance was fabricated via a simple synthesis method with BiVOub>4ub> nanofibers as starting material. The materials were characterized with different techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–vis diffuse reflectance spectroscopy (DRS), Fourier transform infrared spectroscopy (FT-IR), Nub>2ub> absorption–desorption isotherm (BET) and photoluminescence spectroscopy (PL). The results showed that this synthesis method is effective to make a composite. The photocatalytic evaluation indicates that the photocatalytic activity of the g-Cub>3ub>Nub>4ub>/BiVOub>4ub> photocatalyst for methylene blue (MB) was about 8 and 7 times higher than that of pure BiVOub>4ub> and g-Cub>3ub>Nub>4ub>, respectively. This should be due to the enhanced light harvesting ability and to the effective electron transfer during the photocatalytic reaction.