Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/51498
Title: | Pvp dual function-assited hydrothermal synthesis of Bi2O2CO3 microspheres and their high photocatalytic performance | Authors: | Chai, Wee Ting | Keywords: | DRNTU::Engineering::Nanotechnology | Issue Date: | 2013 | Abstract: | Monodisperse Bi2O2CO3 nanoplate-assembled microspheres with size of 1 μm have been obtained through a facile hydrothermal treatment, using Bi(NO3)3 and polyvinylpyrrolidone (PVP) as the starting agents. During the reaction process, PVP not only provides C and O sources but also as a template to induce the nanoplate-assembly to form microspheres. Based on the present reaction system, uniform 1-μm-sized Bi2O2CO3 microspheres constructed by nanoplates can be obtained by adding a little amount of KCl. A possible formation mechanism of Bi2O2CO3 microspheres is proposed on the basis of the outcomes of the PVP and time-dependent experiments. As a superior photocatalyst, the 1-μm-sized Bi2O2CO3 microspheres exhibit high photocatalytic activity for the degradation of methyl orange (MO) dye, due to the novel hierarchical morphology and high surface area. Therefore, the as-prepared uniform monodisperse Bi2O2CO3 microspheres with well-defined hierarchical structures are potential candidates in the applications of environment. | URI: | http://hdl.handle.net/10356/51498 | Schools: | School of Materials Science and Engineering | Rights: | Nanyang Technological University | Fulltext Permission: | restricted | Fulltext Availability: | With Fulltext |
Appears in Collections: | MSE Student Reports (FYP/IA/PA/PI) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
MSE12-121U0920946B.pdf Restricted Access | 1.69 MB | Adobe PDF | View/Open |
Page view(s) 50
495
Updated on Mar 27, 2024
Download(s)
5
Updated on Mar 27, 2024
Google ScholarTM
Check
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.