A comparison of H+-restacked nanosheets and nanoscrolls derived from K4Nb6O17 for visible-light degradation of dyes

作者：Hu, Chenhui; Zhang, Lihong; Cheng, Liyuan; Chen, Jing^*; Hou, Wenhua; Ding, Weiping

来源：Journal of Energy Chemistry, 2014, 23(2): 136-144.

DOI：10.1016/S2095-4956(14)60128-5

• K4Nb6O17
• nanosheets
• nanoscrolls
• photodegradation
• dye

H+-restacked nanosheets and nanoscrolls peeled from K4Nb6O17 display different structures and surface characters. The two restacked samples with increased surface areas have an amazing visible-light response for the photodegradation of dyes, which is superior to commercial TiO2 (P25) and Nb2O5. By comparison, H+/nanosheets have a relatively faster photodegradation rate originated from large and smooth basal plane. The work reveals that dye adsorbed on the unfolded nanosheets can effectively harvest sunlight. Due to facile preparation, low-cost and high photocatalytic efficiency, H+/nanosheets and H+/nanoscrolls might be used for the visible light-driven degradation of organic dyes as a substitute for TiO2 in industry.

• 出版日期2014-3
• 单位南京工业大学; 南京大学