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Zhang T, Elma M, Xie F, Motuzas J, Zhang X, Wang DK. Rapid thermally processed hierarchical titania-based hollow fibres with tunable physicochemical and photocatalytic properties. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.05.063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Zhang J, Shao C, Li X, Xin J, Yang S, Liu Y. Electrospun CuAl2O4 hollow nanofibers as visible light photocatalyst with enhanced activity and excellent stability under acid and alkali conditions. CrystEngComm 2018. [DOI: 10.1039/c7ce01545c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrospun CuAl2O4 hollow nanofibers are reported with enhanced visible light photocatalytic activity and excellent stability under acid and alkali conditions.
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Affiliation(s)
- Jian Zhang
- Center for Advanced Optoelectronic Functional Materials Research
- Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University)
- Ministry of Education
- Changchun 130024
- People's Republic of China
| | - Changlu Shao
- Center for Advanced Optoelectronic Functional Materials Research
- Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University)
- Ministry of Education
- Changchun 130024
- People's Republic of China
| | - Xinghua Li
- Center for Advanced Optoelectronic Functional Materials Research
- Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University)
- Ministry of Education
- Changchun 130024
- People's Republic of China
| | - Jiayu Xin
- Center for Advanced Optoelectronic Functional Materials Research
- Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University)
- Ministry of Education
- Changchun 130024
- People's Republic of China
| | - Shu Yang
- Center for Advanced Optoelectronic Functional Materials Research
- Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University)
- Ministry of Education
- Changchun 130024
- People's Republic of China
| | - Yichun Liu
- Center for Advanced Optoelectronic Functional Materials Research
- Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University)
- Ministry of Education
- Changchun 130024
- People's Republic of China
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New insights into the electrochemical behavior of acid orange 7: Convergent paired electrochemical synthesis of new aminonaphthol derivatives. Sci Rep 2017; 7:41963. [PMID: 28165049 PMCID: PMC5292738 DOI: 10.1038/srep41963] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 12/29/2016] [Indexed: 11/08/2022] Open
Abstract
Electrochemical behavior of acid orange 7 has been exhaustively studied in aqueous solutions with different pH values, using cyclic voltammetry and constant current coulometry. This study has provided new insights into the mechanistic details, pH dependence and intermediate structure of both electrochemical oxidation and reduction of acid orange 7. Surprisingly, the results indicate that a same redox couple (1-iminonaphthalen-2(1H)-one/1-aminonaphthalen-2-ol) is formed from both oxidation and reduction of acid orange 7. Also, an additional purpose of this work is electrochemical synthesis of three new derivatives of 1-amino-4-(phenylsulfonyl)naphthalen-2-ol (3a-3c) under constant current electrolysis via electrochemical oxidation (and reduction) of acid orange 7 in the presence of arylsulfinic acids as nucleophiles. The results indicate that the electrogenerated 1-iminonaphthalen-2(1 H)-one participates in Michael addition reaction with arylsulfinic acids to form the 1-amino-3-(phenylsulfonyl)naphthalen-2-ol derivatives. The synthesis was carried out in an undivided cell equipped with carbon rods as an anode and cathode.
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Li J, Zou D, Zhang K, Luo X, Yang P, Jing Y, Zhang Y, Cui G, Huang N. Strong multi-functions based on conjugating chondroitin sulfate onto an amine-rich surface will direct the vascular cell fate for cardiovascular implanted devices. J Mater Chem B 2017; 5:8299-8313. [DOI: 10.1039/c7tb02162c] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This research may support potential applications for surface modification of cardiovascular implants to achieve improved multi-functions.
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Affiliation(s)
- Jingan Li
- Key Laboratory for Advanced Technologies of Materials
- Ministry of Education
- School of Material Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Dan Zou
- Key Laboratory for Advanced Technologies of Materials
- Ministry of Education
- School of Material Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Kun Zhang
- Key Laboratory for Advanced Technologies of Materials
- Ministry of Education
- School of Material Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Xiao Luo
- Key Laboratory for Advanced Technologies of Materials
- Ministry of Education
- School of Material Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Ping Yang
- Key Laboratory for Advanced Technologies of Materials
- Ministry of Education
- School of Material Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
| | - Yuying Jing
- School of Life Science
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Yuxuan Zhang
- School of Life Science
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Guilin Cui
- School of Life Science
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
| | - Nan Huang
- Key Laboratory for Advanced Technologies of Materials
- Ministry of Education
- School of Material Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
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Cai M, Su J, Lian G, Wei X, Dong C, Zhang H, Jin M, Wei Z. Sono-advanced Fenton decolorization of azo dye Orange G: Analysis of synergistic effect and mechanisms. ULTRASONICS SONOCHEMISTRY 2016; 31:193-200. [PMID: 26964940 DOI: 10.1016/j.ultsonch.2015.12.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 11/19/2015] [Accepted: 12/25/2015] [Indexed: 06/05/2023]
Abstract
In this study, a successful decolorization of Orange G was achieved by means of coupling zero valent iron (ZVI), H2O2 and ultrasound (US) under acidic pH conditions. The synergistic effect and characterization of potential roles of the factors including ZVI, tert-Butanol as radical scavenger, dissolved ferrous ions and H2O2 generated from sonication were evaluated in this sono-advanced Fenton process (SAFP) system. A clear synergy was evident in terms of decolorization rate and the TOC removal as the input of US enhanced the activity of the Fe(0)/H2O2 system. The results suggested that the ZVI was potential replacement for the Fe(2+) ion. This remarkable activity was attributed to the capacity of Fe(2+) formed and reduction of sonic-dissolved Fe(2+) concentration by the formation of {Fe·Fe(2+)}. The modification of the condition of H2O2 addition such as the dosage and input method showed significant variations in terms of decolorization rate. This result indicated that the optimal external addition of H2O2 and input method is a limited factor of decolorization rate due to its comparatively insufficient generated by ultrasound.
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Affiliation(s)
- Meiqiang Cai
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310035, China
| | - Jie Su
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310035, China
| | - Guanghu Lian
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310035, China
| | - Xiaoqin Wei
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310035, China
| | - Chunying Dong
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310035, China.
| | - Haojie Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310035, China
| | - Micong Jin
- Zhejiang Provincial Key Laboratory of Health Risk Appraisal for Trace Toxic Chemicals, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China; Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China.
| | - Zongsu Wei
- Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH 43210, United States
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Balakrishnan VK, Shirin S, Aman AM, de Solla SR, Mathieu-Denoncourt J, Langlois VS. Genotoxic and carcinogenic products arising from reductive transformations of the azo dye, Disperse Yellow 7. CHEMOSPHERE 2016; 146:206-15. [PMID: 26735719 DOI: 10.1016/j.chemosphere.2015.11.119] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 11/16/2015] [Accepted: 11/28/2015] [Indexed: 05/26/2023]
Abstract
Selected aromatic azo and benzidine based dyes are priority compounds under the Government of Canada's Chemical Management Plan (CMP) for environmental risk assessments. Organic compounds undergo chemical and biological transformations when they interact with environmental matrices and biotic species; identifying the transformation products is thus a critical component of the risk assessment process. Here, we used zero valent iron (ZVI) to initiate the reduction of the diazo compound dye Disperse Yellow 7 (DY 7). Using state-of-the-art accurate mass Liquid Chromatography-Quadrupole Time of Flight-Mass Spectroscopy (LC-QToF-MS), four transformation products were conclusively identified, while a fifth product was tentatively ascertained. The conclusively established transformation products included p-phenylenediamine (p-PDA, a known genotoxin), 4-aminoazobenzene (4-AAB, a category 2 carcinogen) and 4-aminobiphenyl (4-ABP, a category 1 human carcinogen). 4-ABP is thought to form via a benzidine rearrangement; this is the first report of DY 7 undergoing a benzidine rearrangement. Given the importance of reduction processes in the metabolism of organic contaminants by aquatic species, we used LC-MS/MS to analyze sediment samples that had been generated previously upon exposure of Western clawed frogs (Silurana tropicalis) to DY 7 (at exposure levels where cellular stress was observed in S. tropicalis). We found p-PDA, 4-AAB, and 4-ABP were present in all exposures, but not in any of the sediment controls, demonstrating that upon release of DY 7 to the aquatic environment, sediment dwelling organisms will metabolize DY 7 to generate known (and suspected) human carcinogens, including through a previously unreported in vivo benzidine rearrangement to produce 4-ABP.
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Affiliation(s)
- Vimal K Balakrishnan
- Aquatic Contaminants Research Division, Water Science and Technology Directorate, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON, Canada.
| | - Salma Shirin
- Aquatic Contaminants Research Division, Water Science and Technology Directorate, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON, Canada
| | - Ahmed M Aman
- Ontario Institute for Cancer Research, 661 University Avenue, Suite 510 Toronto, ON, Canada
| | - Shane R de Solla
- Ecotoxicology and Wildlife Health Division, Wildlife and Landscape Science Directorate, Environment and Climate Change Canada, 867 Lakeshore Road, Burlington, ON, Canada
| | - Justine Mathieu-Denoncourt
- Department of Chemistry and Chemical Engineering, Royal Military College of Canada, P.O. Box 17 000 Stn Forces, Kingston, ON, Canada
| | - Valerie S Langlois
- Department of Chemistry and Chemical Engineering, Royal Military College of Canada, P.O. Box 17 000 Stn Forces, Kingston, ON, Canada
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Fabrication of TiO2/MoS2Composite Photocatalyst and Its Photocatalytic Mechanism for Degradation of Methyl Orange under Visible Light. CAN J CHEM ENG 2015. [DOI: 10.1002/cjce.22245] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Theoretical investigation of azo dyes adsorbed on cellulose fibers: 2. Spectroscopic study. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2013. [DOI: 10.1007/s13738-013-0281-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abbott LC, Batchelor SN, Moore JN. Structure and Reactivity of Thiazolium Azo Dyes: UV–Visible, Resonance Raman, NMR, and Computational Studies of the Reaction Mechanism in Alkaline Solution. J Phys Chem A 2013; 117:1853-71. [PMID: 23427946 DOI: 10.1021/jp309536h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laurence C. Abbott
- Department of Chemistry, The University of York, Heslington, York, YO10 5DD, U.K
| | - Stephen N. Batchelor
- Unilever Research & Development, Port Sunlight, Quarry Road East, Bebington, Wirral, CH63 3JW, U.K
| | - John N. Moore
- Department of Chemistry, The University of York, Heslington, York, YO10 5DD, U.K
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Shirin S, Balakrishnan VK. Using chemical reactivity to provide insights into environmental transformations of priority organic substances: the Fe⁰-mediated reduction of Acid Blue 129. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:10369-10377. [PMID: 22050543 DOI: 10.1021/es202780r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Sulfonated anthracenedione dyes are medium priority organic compounds targeted for environmental assessment under the Government of Canada's Chemical Management Plan (CMP). Since organic compounds undergo transformations in environmental matrices, understanding these transformations is critical for a proper assessment of their environmental fate. In the current study, we used zero-valent iron (ZVI) to provide insight into reductive transformation processes available to the anthracenedione dye, Acid Blue 129 (AB 129), a dye which is used in the textile industry. At high temperatures, we found that AB 129 was rapidly reduced (within 3 h) after being adsorbed onto the ZVI-surface, whereupon decomposition took place via multiple competitive and consecutive reaction pathways. Reaction products were identified using state-of-the-art accurate mass Liquid Chromatography-Quadrupole Time of Flight-Mass Spectroscopy (LC-QToF-MS). Five transformation products were identified, including a genotoxic (and thus, potentially carcinogenic) end-product, 2,4,6-trimethylaniline. The same products were found at room temperature, demonstrating that the transformation pathways revealed here could plausibly arise from biological and/or environmental reductions of AB 129. Our results demonstrate the importance of identifying reaction product arising from priority substances as part of the environmental risk assessment process.
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Affiliation(s)
- Salma Shirin
- Water Science and Technology Directorate, Aquatic Ecosystems Protection Research Division, Environment Canada, 867 Lakeshore Road, Burlington, ON, Canada L7R 4A6
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Bürger S, Stolz A. Characterisation of the flavin-free oxygen-tolerant azoreductase from Xenophilus azovorans KF46F in comparison to flavin-containing azoreductases. Appl Microbiol Biotechnol 2010; 87:2067-76. [DOI: 10.1007/s00253-010-2669-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Revised: 05/05/2010] [Accepted: 05/05/2010] [Indexed: 12/01/2022]
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