|
1
|
Du J, Liu R, Zhu E, Guo H, Li Z, Liu C, Che G. Visible-light-induced bactericidal properties of a novel thiophene-based linear conjugated polymer/TiO 2 heterojunction. J Mater Chem B 2022; 10:737-747. [PMID: 35022631 DOI: 10.1039/d1tb02333k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The low utilization of visible light and the fast recombination of photogenerated electron-hole pairs are the two intrinsic defects that have hindered the antibacterial applications of TiO2. The addition of organic photocatalytic agents to form heterojunctions with TiO2 powder can effectively address these problems. A novel linear conjugated polymer poly[(thiophene-ethylene-thiophene)-thiophene-3-carboxylic acid decyl ester] (PTCD) was successfully synthesized via Stille coupling polymerization. PTCD and TiO2 can form a heterojunction photocatalyst (PTCD/TiO2), and this product was characterized using NMR and XRD. The UV-vis spectra showed that the absorption edge of the PTCD/TiO2 heterojunction extends to approximately 700 nm, which indicates that the visible-light utilization is greatly improved. Staphylococcus aureus (S. aureus) was selected as the target organism to test the photocatalytic antimicrobial activity of the material. Photogenerated electrons can undergo directional transmission of the PTCD polymer to TiO2 on the PTCD/TiO2 heterojunction to realize excellent antibacterial properties. With an optimized PTCD loading ratio of 30%, PTCD/TiO2 showed an antibacterial rate that was 14.5 times greater than that of pure TiO2 in 4 h under visible-light irradiation.
Collapse
Affiliation(s)
- Juan Du
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China. .,College of Chemistry, Jilin Normal University, Siping 136000, P. R. China
| | - Renming Liu
- College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
| | - Enwei Zhu
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China. .,College of Chemistry, Jilin Normal University, Siping 136000, P. R. China
| | - Haiyong Guo
- Department of Biological Science, School of Life Science, Jilin Normal University, Jilin, Siping 136000, P. R. China
| | - Zhiyi Li
- College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
| | - Chunbo Liu
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Ministry of Education, Jilin Normal University, Changchun 130103, P. R. China. .,College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, P. R. China
| | - Guangbo Che
- Baicheng Normal University, Baicheng 137000, China
| |
Collapse
|
|
2
|
Wang Y, Xie Y, Zheng Z, Zeng D, Dai Y, Zhang Z, Cao X, Zou R, Liu Y. Surfactant-assisted adsorption of uranyl ions in aqueous solution on TiO 2/polythiophene nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:37182-37194. [PMID: 33713259 DOI: 10.1007/s11356-021-12587-5] [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: 09/16/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
In this work, hexadecyltrimethylammonium-bromide (HTAB)-modified polythiophene (PTh)/TiO2 nanocomposite (HTAB/PTh/TiO2) was applied to remove uranyl ions (UO22+). FT-IR, XRD, ζ potential, TGA, SEM, and XPS were utilized to obtain the chemical and physical properties of HTAB/PTh/TiO2. The effects of HTAB content, preparation temperature, and adsorption conditions on UO22+ removal were investigated comprehensively. And the UO22+ adsorption process on HTAB/PTh/TiO2 was fitted to the Sips model with a saturated adsorption capacity of 234.74 mg/g, which was 6 times over TiO2. The results suggested that the surfactant of HTAB can significantly improve the adsorption ability of TiO2 for UO22+ ions. This work provides a strategy of surfactant modification for enhancing the separation and recovery ability of adsorbent toward UO22+ in the radioactive wastewater.
Collapse
Affiliation(s)
- Youqun Wang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Yinghui Xie
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Zhiyang Zheng
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Dejun Zeng
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Ying Dai
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Zhibin Zhang
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Xiaohong Cao
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China.
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China.
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| | - Rong Zou
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China
| | - Yunhai Liu
- State Key Laboratory of Nuclear Resources and Environment, East China University of Technology, Nanchang, 330013, Jiangxi, China.
- Engineering Research Center of Nuclear Technology Application, East China University of Technology, Nanchang, 330013, Jiangxi, China.
- Fundamental Science on Radioactive Geology and Exploration Technology Laboratory, East China University of Technology, Nanchang, 330013, Jiangxi, China.
| |
Collapse
|
|
3
|
Zia J, Fatima F, Riaz U. A comprehensive review on the photocatalytic activity of polythiophene-based nanocomposites against degradation of organic pollutants. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01129d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Photocatalytic activity of polythiophene-based nanocomposites.
Collapse
Affiliation(s)
- Jannatun Zia
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Fizzah Fatima
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| | - Ufana Riaz
- Materials Research Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi 110025, India
| |
Collapse
|
|
4
|
Liu X, Wang Y, Zhang TC, Xiang G, Wang X, Yuan S. One-Pot Synthesis of a Magnetic TiO2/PTh/γ-Fe2O3 Heterojunction Nanocomposite for Removing Trace Arsenite via Simultaneous Photocatalytic Oxidation and Adsorption. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04262] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xuemei Liu
- Low-Carbon Technology & Chemical Reaction Engineering Laboratory, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Yuan Wang
- Low-Carbon Technology & Chemical Reaction Engineering Laboratory, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Tian C. Zhang
- Civil and Environmental Engineering Department, University of Nebraska-Lincoln, Omaha, Nebraska 68182-0178, United States
| | - Gang Xiang
- College of Physical Science and Technology, Sichuan University, Chengdu 610064, China
| | - Xinlong Wang
- Low-Carbon Technology & Chemical Reaction Engineering Laboratory, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Shaojun Yuan
- Low-Carbon Technology & Chemical Reaction Engineering Laboratory, College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| |
Collapse
|