scholarly journals Polymer Particles Armored with Cobalt Oxide Nanosheets for the Catalytic Degradation of Bisphenol A

2022 ◽  
Author(s):  
Maria Escamilla ◽  
Kevin Pachuta ◽  
Kuan Huang ◽  
Michael Klingseisen ◽  
Huaixuan Cao ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Cobalt Oxide ◽  
Composite Structures ◽  
Catalytic Degradation ◽  
Polymer Particles ◽  
Performance Properties

22D particle surfactants are attractive for the formation of highly stable emulsions and use as templates to prepare composite structures with performance properties dependent on the composition. Cobalt oxide nanosheets...

scholarly journals UV Stimulated Manganese Dioxide for the Persulfate Catalytic Degradation of Bisphenol A

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 502
Author(s):  
Guihua Dong ◽  
Bing Chen ◽  
Bo Liu ◽  
Stanislav R. Stoyanov ◽  
Yiqi Cao ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Reaction Mechanisms ◽  
Reduction Rate ◽  
Catalytic Degradation ◽  
Gas Chromatography Mass Spectrometry ◽  
Degradation Pathways ◽  
Industrial Chemicals ◽  
Oh Groups ◽  
Long Term Adverse Effects

One of the most commonly produced industrial chemicals worldwide, bisphenol A (BPA), is used as a precursor in plastics, resins, paints, and many other materials. It has been proved that BPA can cause long-term adverse effects on ecosystems and human health due to its toxicity as an endocrine disruptor. In this study, we developed an integrated MnO2/UV/persulfate (PS) process for use in BPA photocatalytic degradation from water and examined the reaction mechanisms, degradation pathways, and toxicity reduction. Comparative tests using MnO2, PS, UV, UV/MnO2, MnO2/PS, and UV/PS processes were conducted under the same conditions to investigate the mechanism of BPA catalytic degradation by the proposed MnO2/UV/PS process. The best performance was observed in the MnO2/UV/PS process in which BPA was completely removed in 30 min with a reduction rate of over 90% for total organic carbon after 2 h. This process also showed a stable removal efficiency with a large variation of pH levels (3.6 to 10.0). Kinetic analysis suggested that 1O2 and SO4•− played more critical roles than •OH for BPA degradation. Infrared spectra showed that UV irradiation could stimulate the generation of –OH groups on the MnO2 photocatalyst surface, facilitating the PS catalytic degradation of BPA in this process. The degradation pathways were further proposed in five steps, and thirteen intermediates were identified by gas chromatography-mass spectrometry. The acute toxicity was analyzed during the treatment, showing a slight increase (by 3.3%) in the first 30 min and then a decrease by four-fold over 2 h. These findings help elucidate the mechanism and pathways of BPA degradation and provide an effective PS catalytic strategy.

Catalytic degradation of bisphenol A by CoMnAl mixed metal oxides catalyzed peroxymonosulfate: Performance and mechanism

2015 ◽  
Vol 279 ◽  
pp. 93-102 ◽  
Author(s):  
Wen Li ◽  
Ping-xiao Wu ◽  
Yajie Zhu ◽  
Zhu-jian Huang ◽  
Yong-hong Lu ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Metal Oxides ◽  
Catalytic Degradation ◽  
Mixed Metal Oxides ◽  
Mixed Metal ◽  
Performance And Mechanism

Gliding Arc Discharge (GAD) assisted catalytic degradation of bisphenol A in solution with ferrous ions

2008 ◽  
Vol 63 (1) ◽  
pp. 30-37 ◽  
Author(s):  
F. Abdelmalek ◽  
R.A. Torres ◽  
E. Combet ◽  
C. Petrier ◽  
C. Pulgarin ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Arc Discharge ◽  
Catalytic Degradation ◽  
Gliding Arc Discharge ◽  
Ferrous Ions ◽  
Gliding Arc

3D hierarchical honeycomb structured MWCNTs coupled with CoMnAl–LDO: fabrication and application for ultrafast catalytic degradation of bisphenol A

RSC Advances ◽  
2015 ◽  
Vol 5 (12) ◽  
pp. 8859-8867 ◽  
Author(s):  
Wen Li ◽  
Pingxiao Wu ◽  
Shanshan Yang ◽  
Yajie Zhu ◽  
Chunxi Kang ◽  
...  
Keyword(s):  
Surface Modification ◽  
Bisphenol A ◽  
Metal Ions ◽  
Catalytic Degradation ◽  
Nano Structure ◽  
Adsorption Of Metal Ions

Schematic illustration for the synthesis of CNTs–LDH. (I): The surface modification of MWCNTs. (II): The adsorption of metal ions. (III): The formation of 2D CNTs–LDH nanosheets. (IV): The formation of 3D hierarchical honeycomb nano-structure.

Enhanced catalytic degradation of bisphenol A by hemin-MOFs supported on boron nitride via the photo-assisted heterogeneous activation of persulfate

2019 ◽  
Vol 229 ◽  
pp. 115822 ◽  
Author(s):  
Qian Ke ◽  
Yanpeng Shi ◽  
Yixuan Liu ◽  
Feng Chen ◽  
Hao Wang ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Bisphenol A ◽  
Catalytic Degradation
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