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Zhang Z, Han Z, Ding S, Jing Y, Wei Z, Zhang D, Hong R, Tao C. Red Emitting Solid-State CDs/PVP with Hydrophobicity for Latent Fingerprint Detection. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1917. [PMID: 38673274 PMCID: PMC11052104 DOI: 10.3390/ma17081917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/06/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024]
Abstract
Fluorescent carbon dots (CDs) are a new type of photoluminescent nanomaterial. Solid-state CDs usually undergo fluorescence quenching due to direct π-π* interactions and superabundant energy resonance transfer. Therefore, the preparation of solid-state fluorescent CDs is a challenge, especially the preparation of long wavelength solid-state CDs. In this research, long wavelength emission CDs were successfully synthesized by solvothermal methods, and the prepared CDs showed good hydrophobicity. The composite solid-state CDs/PVP (Polyvinyl pyrrolidone) can emit strong red fluorescence, and the quantum yield (QY) of the CDs/PVP powder reaches 18.9%. The prepared CDs/PVP solid-state powder was successfully applied to latent fingerprint detection. The results indicate that the latent fingerprints developed by CDs/PVP powder have a fine definition and high contrast visualization effect, which proves that the prepared CDs/PVP has great application potential in latent fingerprint detection. This study may provide inspiration and ideas for the design of new hydrophobic CDs.
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Affiliation(s)
- Zhihong Zhang
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhaoxia Han
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
- Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai 200093, China
| | - Shuhui Ding
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yujing Jing
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zhenjie Wei
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Dawei Zhang
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
- Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai 200093, China
| | - Ruijin Hong
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
- Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai 200093, China
| | - Chunxian Tao
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Shanghai 200093, China
- Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai 200093, China
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Abounahia N, Shahab AA, Khan MM, Qiblawey H, Zaidi SJ. A Comprehensive Review of Performance of Polyacrylonitrile-Based Membranes for Forward Osmosis Water Separation and Purification Process. MEMBRANES 2023; 13:872. [PMID: 37999358 PMCID: PMC10672921 DOI: 10.3390/membranes13110872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 09/30/2023] [Accepted: 10/04/2023] [Indexed: 11/25/2023]
Abstract
Polyacrylonitrile (PAN), with its unique chemical, electrical, mechanical, and thermal properties, has become a crucial acrylic polymer for the industry. This polymer has been widely used to fabricate ultrafiltration, nanofiltration, and reverse osmosis membranes for water treatment applications. However, it recently started to be used to fabricate thin-film composite (TFC) and fiber-based forward osmosis (FO) membranes at a lab scale. Phase inversion and electrospinning methods were the most utilized techniques to fabricate PAN-based FO membranes. The PAN substrate layer could function as a good support layer to create TFC and fiber membranes with excellent performance under FO process conditions by selecting the proper modification techniques. The various modification techniques used to enhance PAN-based FO performance include interfacial polymerization, layer-by-layer assembly, simple coating, and incorporating nanofillers. Thus, the fabrication and modification techniques of PAN-based porous FO membranes have been highlighted in this work. Also, the performance of these FO membranes was investigated. Finally, perspectives and potential directions for further study on PAN-based FO membranes are presented in light of the developments in this area. This review is expected to aid the scientific community in creating novel effective porous FO polymeric membranes based on PAN polymer for various water and wastewater treatment applications.
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Affiliation(s)
- Nada Abounahia
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Arqam Azad Shahab
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Maryam Mohammad Khan
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Hazim Qiblawey
- Department of Chemical Engineering, College of Engineering, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Syed Javaid Zaidi
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
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He M, Feng L, Cui Q, Li Y, Wang J, Zhu J, Wang L, Wang X, Miao R. Forward osmosis membrane doped with water-based zirconium fumarate MOFs to enhance dye pollutant removal and membrane antifouling performance. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:61018-61031. [PMID: 37046161 DOI: 10.1007/s11356-023-26670-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/23/2023] [Indexed: 05/10/2023]
Abstract
Metal-organic frameworks (MOFs) can be applied to enhance the property of forward osmosis membranes. However, organic solvents can easily remain in organic synthetic metal-organic frame materials and cause membrane fouling and a decrease in membrane permeability. In this study, water-based Zr-fumarate MOFs were synthesized and doped into the membrane active layer by interfacial polymerization to provide a water-based MOF-doped thin-film composite membrane (TFC membrane). It was found that doping the water-based MOFs effectively improved membrane hydrophilicity, and nanowater passages were introduced in the active layer to improve permeability. The water flux of the water-based MOF-doped TFC membranes was increased by 21% over that of the original membrane, and the selectivity performance of the membrane was improved while keeping the salt rejection basically unchanged. Additionally, the water-based MOF-doped TFC membrane showed good removal efficiency (Rd > 94%) and strong antipollution performance in the treatment of dye pollutants.
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Affiliation(s)
- Miaolu He
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Northwest Water Resources, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Leihao Feng
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Qi Cui
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Yushuang Li
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Jiaqi Wang
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Jiani Zhu
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Lei Wang
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China.
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China.
- Key Laboratory of Northwest Water Resources, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China.
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China.
| | - Xudong Wang
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Northwest Water Resources, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
| | - Rui Miao
- School of Environmental & Municipal Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Membrane Separation of Shaanxi Province, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Northwest Water Resources, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
- Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Yan Ta Road. No. 13, Xi'an, 710055, China
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