Flower-like Bi 2O 2CO 3: Facile synthesis and their photocatalytic application in treatment of dye-containing wastewater

Lang Chen; Rui Huang; Shuang Feng Yin; Sheng Lian Luo; Chak Tong Au

doi:10.1016/j.cej.2012.04.023

Flower-like Bi ₂O ₂CO ₃: Facile synthesis and their photocatalytic application in treatment of dye-containing wastewater

Lang Chen, Rui Huang, Shuang Feng Yin^*, Sheng Lian Luo, Chak Tong Au

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

162 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	123-130
Number of pages	8
Journal	Chemical Engineering Journal
Volume	193-194
DOIs	https://doi.org/10.1016/j.cej.2012.04.023
Publication status	Published - 15 Jun 2012

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Bi O CO
Nanoflower
Photocatalyst
Photodegradation
Synthesis

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title = "Flower-like Bi 2O 2CO 3: Facile synthesis and their photocatalytic application in treatment of dye-containing wastewater",

abstract = "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.",

keywords = "Bi O CO, Nanoflower, Photocatalyst, Photodegradation, Synthesis",

author = "Lang Chen and Rui Huang and Yin, {Shuang Feng} and Luo, {Sheng Lian} and Au, {Chak Tong}",

note = "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. ",

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doi = "10.1016/j.cej.2012.04.023",

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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

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ER -

Flower-like Bi ₂O ₂CO ₃: Facile synthesis and their photocatalytic application in treatment of dye-containing wastewater

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