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Lalliansanga, Tiwari D, Tiwari A, Shukla A, Shim MJ, Lee SM. Facile synthesis and characterization of Ag(NP)/TiO2 nanocomposite: Photocatalytic efficiency of catalyst for oxidative removal of Alizarin Yellow. Catal Today 2022. [DOI: 10.1016/j.cattod.2020.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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Germani R, Bini M, Fantacci S, Simonetti F, Tiecco M, Vaioli E, Del Giacco T. Influence of surfactants in improving degradation of polluting dyes photocatalyzed by TiO2 in aqueous dispersion. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Rao Y, Zhang Y, Li A, Zhang T, Jiao T. Photocatalytic activity of G-TiO 2@Fe 3O 4 with persulfate for degradation of alizarin red S under visible light. CHEMOSPHERE 2021; 266:129236. [PMID: 33310365 DOI: 10.1016/j.chemosphere.2020.129236] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 11/30/2020] [Accepted: 12/04/2020] [Indexed: 06/12/2023]
Abstract
A composite photocatalyst combined with TiO2, graphite (G) and Fe3O4 was prepared by co-precipitation method. Then the G-TiO2@Fe3O4 was employed with persulfate (PS) to degrade alizarin red S (ARS) under visible light. The removal rate of ARS reached 100% after 60 min irradiation. The degradation rate constant of G-TiO2@Fe3O4/PS exhibited 20.8, 9.0 and 3.1 times than that of TiO2, G-TiO2 and G-TiO2@Fe3O4, respectively. The effects of photocatalyst dosage, mass ratios of graphite and Fe3O4 to TiO2, PS dosage, initial pH and ARS concentration on the degradation efficiency were investigated. The optimal removal efficiency of ARS was obtained when G-TiO2@Fe3O4 dosage was 0.25 g/L, G: TiO2 = 0.005, Fe3O4: TiO2 = 0.8, PS concentration was 6 mmol/L, initial pH = 3, and initial concentration of ARS was 100 mg/L. The SO4·- was demonstrated more important than O2- and·OH in the degradation of ARS. The intermediates and possible degradation pathways of ARS were discussed. Reuse and stability of G-TiO2@Fe3O4 were also tested, and 88.3% photocatalytic activity was maintained after five cycles. Therefore, the proposed G-TiO2@Fe3O4/PS not only had excellent photocatalytic activity, but also showed superior stability and reusability.
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Affiliation(s)
- Yandi Rao
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China; Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Yuxin Zhang
- Heibei Province Low-carbon and Clean Building Heating Technology Innovation Center, Hebei Key Laboratory of Green Construction and Intelligent Maintenance for Civil Engineering, School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao, 066006, China
| | - Aoqi Li
- Heibei Province Low-carbon and Clean Building Heating Technology Innovation Center, Hebei Key Laboratory of Green Construction and Intelligent Maintenance for Civil Engineering, School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao, 066006, China
| | - Tianhu Zhang
- Heibei Province Low-carbon and Clean Building Heating Technology Innovation Center, Hebei Key Laboratory of Green Construction and Intelligent Maintenance for Civil Engineering, School of Civil Engineering and Mechanics, Yanshan University, Qinhuangdao, 066006, China.
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China; Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China.
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Tiwari D, Lee SM, Kim DJ. New insights in photocatalytic removal of Alizarin Yellow using reduced Ce 3+/TiO 2 catalyst. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:8373-8383. [PMID: 33058080 DOI: 10.1007/s11356-020-11087-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 09/30/2020] [Indexed: 05/24/2023]
Abstract
The present communication aims to obtain a novel Ce3+/TiO2 thin film in a single step facile method using the in situ template process. The material was characterized by the XRD (X-ray diffraction), XPS (X-ray photoelectron spectroscopy), TEM (transmission electron microscope), and AFM (atomic force microscope) analyses. The thin film catalyst was intended to introduce in the degradation of one of potential dye Alizarin Yellow from aqueous solutions using the UV-A radiations. The mechanisms of degradation along with the physicochemical parametric studies were conducted extensively. The mineralization of pollutant and the replicate use of catalysts further enhance the applicability of present communication. Additionally, the real matrix treatment was conducted to simulate the treatment process.
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Affiliation(s)
- Diwakar Tiwari
- Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl, 796004, India.
| | - Seung Mok Lee
- Department of Health and Environment, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung, 210-701, Republic of Korea
| | - Dong-Jin Kim
- Department of Environmental Science & Biotechnology, Hallym University, Chuncheon, 24252, Republic of Korea
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Pino E, Calderón C, Castro P. TiO 2 Photocatalyzed Degradation of the Azo Dye Disperse Red 1 in Aqueous Micellar Environments †. Photochem Photobiol 2020; 97:40-46. [PMID: 32558934 DOI: 10.1111/php.13298] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 06/10/2020] [Indexed: 11/26/2022]
Abstract
The photoinduced degradation of the azo dye Disperse Red 1 was studied in a microheterogeneous system comprising titanium oxide (TiO2 ) and sodium dodecyl sulfate, exposed to UV light. Degussa P25, Anatase and TiO2 synthesized in acidic conditions were supported on raschig rings. The TiO2 photocatalyzed degradation is enhanced in the vicinity of the surfactant critical micelle value. Further increase on the surfactant concentration leads to a loss in photodegradation performance up to values equivalent to that observed without surfactant. Surfactant influence can be explained by two different phenomena taking place. The increasing concentration of surfactant leads to an increase in micellar concentration, inducing the incorporation of the dye to the hydrophobic moiety of the micelles, rendering the hydroxyl radical unable to interact with the dye. Similarly, the increased concentration of micelles at the photocatalyst/water interface might lead to a decrease in the number of active sites on the TiO2 surface able to either generate reactive species and/or interact with de dye molecules. Additives such as H2 O2 , NaCl, Na2 SO4, and Na2 CO3 are able to override the influence of the surfactant both positively and negatively, being the final outcome of the influence highly dependent on the crystalline form of the TiO2 photocatalyst.
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Affiliation(s)
- Eduardo Pino
- Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Santiago, Chile
| | - Cristian Calderón
- Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Santiago, Chile
| | - Piero Castro
- Departamento de ingeniería química, Universidad de Santiago de Chile, USACH, Santiago, Chile
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Saeed K, Zada N, Khan I. Photocatalytic degradation of alizarin red dye in aqueous medium using carbon nanotubes/Cu–Ti oxide composites. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1552296] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Khalid Saeed
- Department of Chemistry, University of Malakand, Khyber Pakhtunkhwa, Pakistan
- Department of Chemistry, Bacha Khan University, Khyber Pakhtunkhwa, Pakistan
| | - Noor Zada
- Department of Chemistry, University of Malakand, Khyber Pakhtunkhwa, Pakistan
| | - Idrees Khan
- Department of Chemistry, University of Malakand, Khyber Pakhtunkhwa, Pakistan
- Department of Chemistry, Bacha Khan University, Khyber Pakhtunkhwa, Pakistan
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Anastasio P, Del Giacco T, Germani R, Spreti N, Tiecco M. Structure effects of amphiphilic and non-amphiphilic quaternary ammonium salts on photodegradation of Alizarin Red-S catalyzed by titanium dioxide. RSC Adv 2017. [DOI: 10.1039/c6ra25421g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The role of surfactants such as single- and double-tailed tetraalkylammonium bromide and various non-amphiphilic tetraalkylammonium salts was investigated on the TiO2photocatalyzed degradation of Alizarin Red-S under UV light irradiation.
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Affiliation(s)
- Paola Anastasio
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università di Perugia
- 06123 Perugia
- Italy
| | - Tiziana Del Giacco
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università di Perugia
- 06123 Perugia
- Italy
| | - Raimondo Germani
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università di Perugia
- 06123 Perugia
- Italy
| | - Nicoletta Spreti
- Dipartimento di Scienze Fisiche e Chimiche
- Università dell'Aquila
- 67100 L'Aquila
- Italy
| | - Matteo Tiecco
- Dipartimento di Chimica
- Biologia e Biotecnologie
- Università di Perugia
- 06123 Perugia
- Italy
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