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Ungureanu C, Barbulescu L, Dumitriu C, Manole C, Pirvu C. Titanium industrial residues surface modification towards its reuse as antimicrobial surfaces. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:38224-38237. [PMID: 33733411 DOI: 10.1007/s11356-021-13359-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
In this study, a new material obtained from titanium ingots residue was coated with natural carotenoids having antibacterial properties. The waste is a no recycling titanium scrap from technological production process which was pressed and transformed into disks titanium samples. Through anodization and annealing procedures of the titanium disk, a nanostructured titanium dioxide surface with photocatalytic and antibacterial properties was successfully obtained. The titanium scrap impurities (V, Al, and N), unwanted for production process, have shown to improve electrochemical and semiconductor properties of the residue surfaces. The nanostructured titanium scrap surface was modified with two different carotenoids, torularhodin and β-carotene, to potentiate the antibacterial properties. The bactericidal tests were performed against Salmonella typhimurium and Escherichia coli, both Gram-negative. The best bactericidal effect is obtained for nanostructured titanium scrap disks immersed in torularhodin, with a percentage of growth inhibition around 60% against both tested bacteria. The results suggest that this low-cost waste material is suitable for efficient reuse as antibacterial surface after a few simple and inexpensive treatments.
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Affiliation(s)
- Camelia Ungureanu
- General Chemistry Department, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu, 011061, Bucharest, Romania
| | - Laura Barbulescu
- General Chemistry Department, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu, 011061, Bucharest, Romania
- National Research & Development Institute for Non-Ferrous and Rare Metals, 102 Biruintei Blvd, 077145, Pantelimon, Ilfov, Romania
| | - Cristina Dumitriu
- General Chemistry Department, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu, 011061, Bucharest, Romania
| | - Claudiu Manole
- General Chemistry Department, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu, 011061, Bucharest, Romania
| | - Cristian Pirvu
- General Chemistry Department, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu, 011061, Bucharest, Romania.
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Khammar S, Bahramifar N, Younesi H. Preparation and surface engineering of CM-β-CD functionalized Fe 3O 4@TiO 2 nanoparticles for photocatalytic degradation of polychlorinated biphenyls (PCBs) from transformer oil. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122422. [PMID: 32200245 DOI: 10.1016/j.jhazmat.2020.122422] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
The aim of the present research is to investigate the efficiency of surface-modified magnetic nanoparticles for photocatalytic degradation of PCBs from transformer oil. Therefore, CMCD-Fe3O4@TiO2 was successfully produced via grafting of carboxymethyl-β-cyclodextrin (CM-β-CD) onto the core-shell titania magnetic nanoparticles surface. The photocatalytic efficiency of CMCD-Fe3O4@TiO2 for degradation of PCBs was systematically evaluated using an experimental design and the process parameters were optimized by response surface methodology (RSM). The central composite design (CCD) with four experimental parameters was used successfully in the modeling and optimization of photocatalytic efficiency in removing PCBs from transformer oil. ANOVA analysis confirmed a high R-squared value of 0.9769 describing the goodness of fit of the proposed model for the significance estimation of the individual and the interaction effects of variables. The optimal degradation yields of PCBs was achieved 83 % at a temperature of 25 °C, time of 16 min, the dosage of the catalyst of 8.35 mg and oil: ethanol ratio of 1:5. These findings encourage the practical use of CM-β-CD-Fe3O4@TiO2 as a promising and alternative photocatalyst on an industrial scale for the cleaning of organic pollutants such as PCBs due to its environmental friendliness, the benefit of magnetic separation and good reusability after five times.
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Affiliation(s)
- Sanaz Khammar
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356 Nour, Mazandaran, Iran
| | - Nader Bahramifar
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356 Nour, Mazandaran, Iran.
| | - Habibollah Younesi
- Department of Environmental Sciences, Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University, P.O. Box 46414-356 Nour, Mazandaran, Iran
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Li Z, Soroka IL, Min F, Jonsson M. pH-Control as a way to fine-tune the Cu/Cu 2O ratio in radiation induced synthesis of Cu 2O particles. Dalton Trans 2018; 47:16139-16144. [PMID: 30378612 DOI: 10.1039/c8dt02916d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we have optimized the γ-radiation induced synthesis of Cu-Cu2O particles from aqueous CuSO4 solution by investigating the effect of pH. The obtained precipitate was analyzed by XRD and SEM techniques. The results indicated that at solution pH lower than 3.75, quasi-spherical Cu agglomerates can be formed while at pH higher than 4.40 only octahedron-shaped Cu2O particles are produced. At solution pH in the range from 3.75 to 4.40, a Cu-Cu2O mixture is produced. It was found that the relative amount of Cu2O in the Cu-Cu2O precipitate increases with pH in the studied range. The influence of solution pH on the Cu/Cu2O ratios in the product can be explained on the basis of pH-dependent competition kinetics between the reactions leading to either Cu or Cu2O formation. As a consequence, the composition and morphology of the Cu-Cu2O precipitate can be tuned by controlling pH of the aqueous CuSO4 solution during the γ-radiation induced synthesis.
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Affiliation(s)
- Zhuofeng Li
- Applied Physical Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden.
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Wang X, Wang X, Zhao J, Song J, Zhou L, Ma R, Wang J, Tong X, Chen Y. Efficient visible light-driven in situ photocatalytic destruction of harmful alga by worm-like N,P co-doped TiO2/expanded graphite carbon layer (NPT-EGC) floating composites. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00133a] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Preparation of N,P co-doped TiO2/expanded graphite carbon layer (NPT-EGC) composites for floating algaecides.
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Affiliation(s)
- Xin Wang
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
- School of Civil and Environmental Engineering
| | - Xuejiang Wang
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Jianfu Zhao
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Jingke Song
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Lijie Zhou
- Shenzhen Academy of Environmental Sciences
- Shenzhen 518001
- China
| | - Rongrong Ma
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Jiayi Wang
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse
- Tongji University
- Shanghai 200092
- China
| | - Xin Tong
- School of Civil and Environmental Engineering
- Georgia Institute of Technology
- Atlanta 30332
- USA
| | - Yongsheng Chen
- School of Civil and Environmental Engineering
- Georgia Institute of Technology
- Atlanta 30332
- USA
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Seridi F, Chettibi S, Keghouche N, Beaunier P, Belloni J. Structural study of radiolytic catalysts Ni-Ce/Al2O3 and Ni-Pt/Al2O3. Radiat Phys Chem Oxf Engl 1993 2017. [DOI: 10.1016/j.radphyschem.2016.07.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Wang Y, Sun C, Zhao X, Cui B, Zeng Z, Wang A, Liu G, Cui H. The Application of Nano-TiO 2 Photo Semiconductors in Agriculture. NANOSCALE RESEARCH LETTERS 2016; 11:529. [PMID: 27896791 PMCID: PMC5126030 DOI: 10.1186/s11671-016-1721-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 11/04/2016] [Indexed: 05/08/2023]
Abstract
Nanometer-sized titanium dioxide (TiO2) is an environmentally friendly optical semiconductor material. It has wide application value in many fields due to its excellent structural, optical, and chemical properties. The photocatalytic process of nano-TiO2 converts light energy into electrical or chemical energy under mild conditions. In recent years, the study and application of nano-TiO2 in the agricultural sector has gradually attracted attention. The nano-TiO2 applications of degrading pesticides, plant germination and growth, crop disease control, water purification, pesticide residue detection, etc. are good prospects. This review describes all of these applications and the research status and development, including the underlying principles, features, comprehensive applications, functional modification, and potential future directions, for TiO2 in agriculture.
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Affiliation(s)
- Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Anqi Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Guoqiang Liu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
- Nanobiotechnology Research Center, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China.
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Tsoncheva T, Ivanova R, Henych J, Velinov N, Kormunda M, Dimitrov M, Paneva D, Slušná M, Mitov I, Štengl V. Iron modified titanium–hafnium binary oxides as catalysts in total oxidation of ethyl acetate. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2016.03.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Ghalei M, Vandenborre J, Blain G, Haddad F, Mostafavi M, Fattahi M. Oxidation and/or reduction of manganese species by γ-ray and He2+ particle irradiation in highly concentrated carbonate media. Radiat Phys Chem Oxf Engl 1993 2016. [DOI: 10.1016/j.radphyschem.2015.10.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Wronski P, Surmacki J, Abramczyk H, Adamus A, Nowosielska M, Maniukiewicz W, Kozanecki M, Szadkowska-Nicze M. Surface, optical and photocatalytic properties of silica-supported TiO 2 treated with electron beam. Radiat Phys Chem Oxf Engl 1993 2015. [DOI: 10.1016/j.radphyschem.2014.12.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Khan MM, Ansari SA, Pradhan D, Han DH, Lee J, Cho MH. Defect-Induced Band Gap Narrowed CeO2 Nanostructures for Visible Light Activities. Ind Eng Chem Res 2014. [DOI: 10.1021/ie500986n] [Citation(s) in RCA: 230] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mohammad Mansoob Khan
- School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
| | - Sajid Ali Ansari
- School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
| | - Debabrata Pradhan
- Materials
Science Centre, Indian Institute of Technology, Kharagpur, W. B. 721302, India
| | - Do Hung Han
- School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
| | - Jintae Lee
- School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
| | - Moo Hwan Cho
- School
of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South Korea
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Chettibi S, Keghouche N, Benguedouar Y, Bettahar MM, Belloni J. Structural and Catalytic Characterization of Radiation-Induced Ni/TiO2 Nanoparticles. Catal Letters 2013. [DOI: 10.1007/s10562-013-1045-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Surmacki J, Wroński P, Szadkowska-Nicze M, Abramczyk H. Raman spectroscopy of visible-light photocatalyst – Nitrogen-doped titanium dioxide generated by irradiation with electron beam. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.02.066] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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