One-Step Synthesis Heterostructured g-C3N4/TiO2 Composite for Rapid Degradation of Pollutants in Utilizing Visible Light

Nanomaterials

Zhi-Guang Zhang¹  Shi-Ying Yan¹  Xiao-Xiong Wang¹  Hong-Ling Liu¹  Qian-Qian Zhang²  Seeram Ramakrishna³  Yan-Fu Tong³  Yun-Ze Long³  Hong-Wei He³  Hui Liu³  Jun Zhang⁴ 

[1] Devices, College of Physics, Qingdao University, Qingdao 266071, China;Technical Textiles, College of Textiles and Clothing, Qingdao University, Qingdao, 266071, China;;Collaborative Innovation Center for Nanomaterials &;Industrial Research Institute of Nonwovens &

关键词: electrospinning;    g-C3N4/TiO2;    heterostructures;    visible light;    photocatalyst;   

DOI  :  10.3390/nano8100842

来源: DOAJ

【 摘 要 】

To meet the urgent need of society for advanced photocatalytic materials, novel visible light driven heterostructured composite was constructed based on graphitic carbon nitride (g-C3N4) and fibrous TiO2. The g-C3N4/TiO2 (CNT) composite was prepared through electrospinning technology and followed calcination process. The state of the g-C3N4 and fibrous TiO2 was tightly coupled. The photocatalytic performance was measured by degrading the Rhodamine B. Compared to commercial TiO2 (P25®) and electrospun TiO2 nanofibers, the photocatalytic performance of CNT composite was higher than them. The formation of CNT heterostructures and the enlarged specific surface area enhanced the photocatalytic performance, suppressing the recombination rate of photogenerated carriers while broadening the absorption range of light spectrum. Our studies have demonstrated that heterostructured CNT composite with an appropriate proportion can rational use of visible light and can significantly promote the photogenerated charges transferred at the contact interface between g-C3N4 and TiO2.

【 授权许可】

Unknown