TY - JOUR
T1 - Flower-like Bi 2O 2CO 3
T2 - Facile synthesis and their photocatalytic application in treatment of dye-containing wastewater
AU - Chen, Lang
AU - Huang, Rui
AU - Yin, Shuang Feng
AU - Luo, Sheng Lian
AU - AU, Chak Tong
N1 - Funding Information:
This project was financially supported by Hunan Provincial Natural Science Foundation of China ( 10JJ1003 ), the Fundamental Research Funds for the Central Universities, the program for New Century Excellent Talents in Universities ( NCET-10-0371 ), and National 863 Program of China ( 2009AA05Z319 ). C.T. Au thanks the Hunan University for an adjunct professorship.
PY - 2012/6/15
Y1 - 2012/6/15
N2 - A facile, fast and low-cost method was developed for the synthesis of novel flower-like Bi 2O 2CO 3 in an aqueous medium with the assistance of cetyltrimethylammonium bromide (CTAB). The as-synthesized flower-like Bi 2O 2CO 3 was characterized using the powder X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscope, UV-vis diffuse reflectance spectra, and N 2 adsorption-desorption techniques. It was found that the nanomaterial exhibited high photocatalytic efficiency towards the degradation of wastewater dyes (rhodamine-B, methylene orange, crystal violet or their mixture) under UV-vis light irradiation. There was only a slight decrease in photocatalytic activity after 5-time recycling (with above 99% removal), suggesting that the catalyst is highly stable and reusable. The relationship between structure and catalytic performance of the flower-like Bi 2O 2CO 3 was investigated. It is deduced that the high photocatalytic activity can be attributed to the flower-like morphology, thin nanopetals, low band gap, and large specific surface area.
AB - A facile, fast and low-cost method was developed for the synthesis of novel flower-like Bi 2O 2CO 3 in an aqueous medium with the assistance of cetyltrimethylammonium bromide (CTAB). The as-synthesized flower-like Bi 2O 2CO 3 was characterized using the powder X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscope, UV-vis diffuse reflectance spectra, and N 2 adsorption-desorption techniques. It was found that the nanomaterial exhibited high photocatalytic efficiency towards the degradation of wastewater dyes (rhodamine-B, methylene orange, crystal violet or their mixture) under UV-vis light irradiation. There was only a slight decrease in photocatalytic activity after 5-time recycling (with above 99% removal), suggesting that the catalyst is highly stable and reusable. The relationship between structure and catalytic performance of the flower-like Bi 2O 2CO 3 was investigated. It is deduced that the high photocatalytic activity can be attributed to the flower-like morphology, thin nanopetals, low band gap, and large specific surface area.
KW - Bi O CO
KW - Nanoflower
KW - Photocatalyst
KW - Photodegradation
KW - Synthesis
UR - http://www.scopus.com/inward/record.url?scp=84862539752&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2012.04.023
DO - 10.1016/j.cej.2012.04.023
M3 - Article
AN - SCOPUS:84862539752
VL - 193-194
SP - 123
EP - 130
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
ER -