Photocatalytic degradation of organic dyes with hierarchical Bi2O2CO3microstructures under visible-light

Madhusudan, Puttaswamy; Zhang, Jun; Cheng, Bei; Liu, Gang

doi:10.1039/c2ce26639c

Cited by 118 publications

(67 citation statements)

References 92 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For Bi 2 O 2 CO 3 , n equals to 4 for indirect transition. 8,23,24,28 From the onset of the absorption edge (Figure 4b), the band gaps can be estimated from the plot of (αhν) product. In the absence of SDBS, flower-like products with diameter of 5-20 µm rather than monodispersed plates were obtained ( Figure 5(a)).…”

Section: Resultsmentioning

confidence: 99%

“…The superior photocatalytic activity of Bi 2 O 2 CO 3 nanoplates, as compared with commercial P25-TiO 2 , is mainly attributed to the higher valence band of Bi 2 O 2 CO 3 structure, 12,36 namely, 3.31 eV for Bi 2 O 2 CO 3 vs. 3.2 eV for anatase and 3.0 eV for rutile. The higher band gap means higher oxidation ability of photo-generated holes, which is reasonable that the photocatalytic activity of Bi 2 O 2 CO 3 is better than that of P25-TiO 2 .…”

Section: 9mentioning

confidence: 98%

“…21,22 The internal layered structure of Bi 2 O 2 CO 3 would guide the lower growth rate along certain axis compared with that for other axes, to form 2D morphologies such as sheet-like or plate-like products. 8,23,24 Previous work has demonstrated that Bi 2 O 2 CO 3 hierarchical structures assembled by nanosheets exhibit high activity towards the photodegradation of RhB as well as the mixed solution of MB and MO, due to their exposed (001) facets. 12 Herein, we reported a facile solvothermal approach to the synthesis of monodispersed Bi 2 O 2 CO 3 nanoplates with an average thickness of about 70 nm.…”

Section: -17mentioning

confidence: 99%

“…8,23,24 Previous work has demonstrated that Bi 2 O 2 CO 3 hierarchical structures assembled by nanosheets exhibit high activity towards the photodegradation of RhB as well as the mixed solution of MB and MO, due to their exposed (001) facets. 12 Herein, we reported a facile solvothermal approach to the synthesis of monodispersed Bi 2 O 2 CO 3 nanoplates with an average thickness of about 70 nm. The as-synthesized Bi 2 O 2 CO 3 nanoplates exhibited excellent photocatalytic activity towards the degradation of RhB and refractory phenol under simulated solar light (SSL) irradiation.…”

Section: -17mentioning

confidence: 99%

“…The subsequent work were dedicated to the correlation between the photocatalytic performance and structure characteristics of the material, and various morphologies of Bi 2 O 2 CO 3 have been synthesized, such as nanosheets, 9 nanotubes, 10 microspheres, 11,12 and flower-like hierarchitectures. 13,14 The reported Bi 2 O 2 CO 3 showed high activities in degrading organic dyes such as methylene blue (MB) and methyl orange (MO), as well as in removing heavy metal ions.…”

Section: -7mentioning

confidence: 99%

See 4 more Smart Citations

Solvothermal Synthesis of Bi₂O₂CO₃Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Hu¹,

Xu²,

Zhang³

et al. 2014

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

Monodispersed Bi 2 O 2 CO 3 nanoplates with an average width of 320 nm and thicknesses of 50-90 nm were successfully synthesized by a simple solvothermal method in a mixture solution of polyethylene glycol and H 2 O. The obtained nanoplates were characterized by means of XRD, FT-IR, SEM and TEM. The effect of surfactant sodium dodecyl benzene sulfonate on the morphology of Bi 2 O 2 CO 3 product was investigated. Under simulated solar light irradiation, Bi 2 O 2 CO 3 nanoplates exhibited superior photocatalytic activities towards the degradation of RhB as well as high chemical stability upon cycling photocatalytic test. The nanoplates also showed promising photodegradation ability for eliminating refractory pollutant of phenol. The excellent photocatalytic performance of Bi 2 O 2 CO 3 nanoplates as compared with P25-TiO 2 endows them as promising high efficiency photocatalysts.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: 9mentioning

confidence: 98%

Section: -17mentioning

confidence: 99%

Section: -17mentioning

confidence: 99%

Section: -7mentioning

confidence: 99%

See 3 more Smart Citations

Solvothermal Synthesis of Bi₂O₂CO₃Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Hu¹,

Xu²,

Zhang³

et al. 2014

Bulletin of the Korean Chemical Society

View full text Add to dashboard Cite

show abstract

Oxygen‐Deficient BiOBr as a Highly Stable Photocatalyst for Efficient CO₂ Reduction into Renewable Carbon‐Neutral Fuels

et al. 2016

View full text Add to dashboard Cite

A highly facile one‐pot ethylene glycol‐assisted solvothermal process was employed to fabricate bismuth oxybromide (BiOBr) with oxygen‐deficient defects. These defects played an indispensable role for superior photocatalytic CO2 reduction, in which the as‐prepared sample demonstrated a remarkable improvement of 3.3 and 5.7‐fold for CH4 production over pristine BiOBr and P25, respectively. The enhancement could be attributed to the presence of oxygen vacancies, which acted as the active sites for CO2 adsorption and activation. In addition, the oxygen–deficiency–induced defect states could effectively trap photogenerated electrons, thus improving the separation of the electron–hole pairs and significantly slow down the recombination rate of charge carriers. On top of that, oxygen‐deficient BiOBr exhibited long term stability (>50 hours of catalytic reaction) for CO2 photoreduction under simulated solar light, where no reducing agent or any post‐treatment was needed to regenerate the oxygen vacancies.

show abstract

Dual S‐Scheme Ta₃N₅/Bi₂O₂CO₃/Ta₂O₅ With Hierarchical Pore Structures for Enhanced Photodegradation of Dye‐Performance and Mechanism

Ji,

Li,

Liu

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

A dual S‐scheme heterojunction of Ta3N5/Bi2O2CO3/Ta2O5 was synthesized with enhanced photoactivity for MB degradation. The Ta3N5 modification introduces hierarchical pore structures in composite, which is conducive to dye absorption and degradation. Ta3N5 also enhances the light harvesting capability and improves the carrier separation and transfer efficiency of composite due to its superior photoelectrical properties. A S‐scheme heterojunction was proved to be formed between Ta3N5 and Bi2O2CO3, which not only accelerates the carrier separation and transfer efficiency, but also preserves electrons and holes with superior redox capability in composite. Thus, the formation of ⋅O2− and ⋅OH with superior oxidation capability were significantly enhanced in Ta3N5/Bi2O2CO3 composite. MB (20 mg/L) degradation efficiency was enhanced from 55 % of Ta3N5 and Bi2O2CO3 in 3 hours to almost 95 % of Ta3N5/Bi2O2CO3 composite. Because Ta3N5 was partly oxidized to Ta2O5 during preparation, a dual S‐scheme heterojunction of Ta3N5/Bi2O2CO3/Ta2O5 was proposed, which provided an exemplary way of fabricating dual S‐scheme heterojunction involving Ta3N5 and Ta2O5.

show abstract

Photocatalytic degradation of organic dyes with hierarchical Bi₂O₂CO₃microstructures under visible-light

Cited by 118 publications

References 92 publications

Solvothermal Synthesis of Bi₂O₂CO₃Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Solvothermal Synthesis of Bi₂O₂CO₃Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Oxygen‐Deficient BiOBr as a Highly Stable Photocatalyst for Efficient CO₂ Reduction into Renewable Carbon‐Neutral Fuels

Dual S‐Scheme Ta₃N₅/Bi₂O₂CO₃/Ta₂O₅ With Hierarchical Pore Structures for Enhanced Photodegradation of Dye‐Performance and Mechanism

Contact Info

Product

Resources

About

Photocatalytic degradation of organic dyes with hierarchical Bi2O2CO3microstructures under visible-light

Cited by 118 publications

References 92 publications

Solvothermal Synthesis of Bi2O2CO3Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Solvothermal Synthesis of Bi2O2CO3Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Oxygen‐Deficient BiOBr as a Highly Stable Photocatalyst for Efficient CO2 Reduction into Renewable Carbon‐Neutral Fuels

Dual S‐Scheme Ta3N5/Bi2O2CO3/Ta2O5 With Hierarchical Pore Structures for Enhanced Photodegradation of Dye‐Performance and Mechanism

Contact Info

Product

Resources

About

Photocatalytic degradation of organic dyes with hierarchical Bi₂O₂CO₃microstructures under visible-light

Solvothermal Synthesis of Bi₂O₂CO₃Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Solvothermal Synthesis of Bi₂O₂CO₃Nanoplates for Efficient Photodegradation of RhB and Phenol under Simulated Solar Light Irradiation

Oxygen‐Deficient BiOBr as a Highly Stable Photocatalyst for Efficient CO₂ Reduction into Renewable Carbon‐Neutral Fuels

Dual S‐Scheme Ta₃N₅/Bi₂O₂CO₃/Ta₂O₅ With Hierarchical Pore Structures for Enhanced Photodegradation of Dye‐Performance and Mechanism