Fabrication of eco-friendly Cu/Co-LDHs-based superhydrophobic sponge and efficiently synchronous removal of microplastic, dyestuff, and oil

Peng, Shan; Chen, Xiaoxin; Rong, Xin; Ma, Haobo; Zhao, Chenyang; Pang, Nannan

doi:10.1016/j.jclepro.2023.136708

Cited by 30 publications

(7 citation statements)

References 47 publications

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“…In addition, the bacteria adhering to the coating during the oil/water separation process will seriously reduce its hydrophobicity, thus affecting its separation efficiency. 62,63 Therefore, the antibacterial property of fh-SiO 2 /CM was also investigated based on the spread plate method, in which E. coli and S. aureus were selected as the representative Gramnegative and Gram-positive bacteria and the p-CM and e-CM were the controls, respectively. Compared to the p-CM and e-CM (Figure 7e), we can see that there are no bacteria adhered to fh-SiO 2 /CM, which should be attributed to its higher superhydrophobic properties than the p-CM and e-CM.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Fluorine-Free Fluorescent Superhydrophobic Coating with Visual Detection/Convenient Repair of Microdamage and Its Application in Antibacterial/Oil–Water Separation

Wu,

Luo,

Gao

et al. 2023

Ind. Eng. Chem. Res.

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The microdamage inevitably generated in a superhydrophobic coating is difficult to detect but can greatly reduce its superhydrophobic properties. Therefore, it is of great significance to construct superhydrophobic coatings with convenient detection/repair of microdamage to expand their wide applications. Herein, a novel fluorine-free fluorescent superhydrophobic coating was efficiently fabricated by simply spraying synthesized fluorescent hydrophobic SiO 2 (fh-SiO 2 ) on an etched copper mesh (e-CM). The constructed fh-SiO 2 /CM exhibits outstanding superhydrophobicity with a higher water contact angle (WCA > 160.2°) and a lower sliding angle (WSA < 4°). More interestingly, the fluorescence of fh-SiO 2 /CM enables the rapid visual identification of microdamage on its surface, which can then be easily repaired by respraying fh-SiO 2 . Furthermore, the fh-SiO 2 /CM also has strong surface robustness, good chemical/thermal/photostability, and antibacterial and self-cleaning properties, making fh-SiO 2 /CM successfully used for oil/water separation. Meanwhile, this strategy is simple, low-cost, and eco-friendly and can be used to construct large-scale superhydrophobic coatings on various substrates, proving its universality and practicability. This study opens an avenue for constructing novel fluoride-free superhydrophobic coatings with microdamage detection and convenient repair functions and has broad application prospects in chemistry, environment, clinical medicine, etc.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Fluorine-Free Fluorescent Superhydrophobic Coating with Visual Detection/Convenient Repair of Microdamage and Its Application in Antibacterial/Oil–Water Separation

Wu,

Luo,

Gao

et al. 2023

Ind. Eng. Chem. Res.

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“…Unlike the radicals mentioned above, singlet oxygen ( 1 O 2 ) is also deemed an active substance in the non-radical pathway. [33] As depicted in Figure 8 2)-( 4)) . [34] Among them, SO 4 *À has the strongest effect, followed by * OH, and then 1 O 2 , and the least effect is O 2 *À .…”

Section: Identification Of Primary Reactive Speciesmentioning

confidence: 99%

Utilizing Self‐Floating Cu₃BiS₃ Polydopamine Polyurethane Sponges for Enhanced Water Purification: Harnessing the free radical and non‐radical in persulfate system

Xiao,

Zhou,

et al. 2024

ChemistrySelect

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The advanced oxidation process based on persulfate group is a promising technology for water purification. However, the synergistic effect of free radical and non‐free radical degradation is still not feasible in the persulfate activation process, which consumes a large amount of external energy. The self‐floating Cu3BiS3/polydopamine/polyurethane sponge was prepared using a simple method, resulting in high catalytic performance when activated by peroxydisulfate (PDS). The experiments conducted to identify free radicals showed that the degradation process of tetracycline (TC) involved the synergistic action of non‐radical 1O2 and free radicals (SO4⋅− and • OH) and the conversion of Cu+/Cu2+. The addition of Cl−, HCO3−, PO43−, and SO42− to the solution did not significantly affect the high degradation rate of TC. Furthermore, the interfacial evaporation process achieved a remarkable evaporation rate of 1.53 kg m−2 h−1 and produced reclaimed water without any detectable TC contaminants. The sponge also exhibited excellent salt resistance and chemical stability. This study provides valuable insights into the degradation of antibiotics and the desalination of seawater.

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“…Compared to other chemical modification methods, 14,15,22 this synthesis process is simple and relatively environmentally friendly. HDTMS is preferred as a superhydrophobic molecular chain primarily because of its non‐toxicity, hydrophobicity, and self‐healing properties 23 . And co‐deposition of HDTMS with PDA enhances the durability of the coating 24 .…”

Section: Introductionmentioning

confidence: 99%

“…HDTMS is preferred as a superhydrophobic molecular chain primarily because of its non-toxicity, hydrophobicity, and self-healing properties. 23 And co-deposition of HDTMS with PDA enhances the durability of the coating. 24 In this study, dopamine as a medium enhances the adhesion of the hydrophobic functional material HDTMS on the surface of GO.…”

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confidence: 99%

Study on the properties of polydopamine/hexadecyltrimethoxysilane co‐deposition functionalized modified graphene oxide and composite styrene–butadiene–styrene modified asphalt binder

Xing

Lin

et al. 2023

J of Applied Polymer Sci

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A composite graphene oxide (GO) modifier was prepared by co‐deposition of polydopamine (PDA) and hexadecyltrimethoxysilane (HDTMS) with hydrophobic function to enhance the interfacial interaction between GO and asphalt. Dopamine as a medium enhances the adhesion of the hydrophobic functional material HDTMS on the surface of GO. And the long alkyl chains of HDTMS molecules greatly reduce the surface free energy and ensure the dispersion stability of composite GO modifier in styrene–butadiene–styrene (SBS) modified asphalt. The physical properties of modified asphalt show that the ductility, high‐temperature stability, and viscosity of asphalt can be improved by the addition of PDA/HDTMS composite GO modifiers (DH‐GO). Among them, 0.04% DH‐GO composite SBS modified asphalt binder (DH‐GO/SBSMB) has the best mechanical properties. Compared with 0.05% GO composite SBS modified asphalt binder (GO/SBSMB), the softening point of 0.04% DH‐GO/SBSMB increased by 8.3%, the penetration degree decreased by 9.7%, and the elongation increased by 18.2%. Dynamic shear rheometer (DSR), multiple stress creep recovery (MSCR) and rotational viscosity (RV) tests show that 0.04% DH‐GO/SBSMB has higher high‐temperature stability, plasticity, and viscosity than 0.05%GO/SBSMB, which meets the requirements of asphalt construction specifications.

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Fabrication of eco-friendly Cu/Co-LDHs-based superhydrophobic sponge and efficiently synchronous removal of microplastic, dyestuff, and oil

Cited by 30 publications

References 47 publications

Fluorine-Free Fluorescent Superhydrophobic Coating with Visual Detection/Convenient Repair of Microdamage and Its Application in Antibacterial/Oil–Water Separation

Fluorine-Free Fluorescent Superhydrophobic Coating with Visual Detection/Convenient Repair of Microdamage and Its Application in Antibacterial/Oil–Water Separation

Utilizing Self‐Floating Cu₃BiS₃ Polydopamine Polyurethane Sponges for Enhanced Water Purification: Harnessing the free radical and non‐radical in persulfate system

Study on the properties of polydopamine/hexadecyltrimethoxysilane co‐deposition functionalized modified graphene oxide and composite styrene–butadiene–styrene modified asphalt binder

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Fabrication of eco-friendly Cu/Co-LDHs-based superhydrophobic sponge and efficiently synchronous removal of microplastic, dyestuff, and oil

Cited by 30 publications

References 47 publications

Fluorine-Free Fluorescent Superhydrophobic Coating with Visual Detection/Convenient Repair of Microdamage and Its Application in Antibacterial/Oil–Water Separation

Fluorine-Free Fluorescent Superhydrophobic Coating with Visual Detection/Convenient Repair of Microdamage and Its Application in Antibacterial/Oil–Water Separation

Utilizing Self‐Floating Cu3BiS3 Polydopamine Polyurethane Sponges for Enhanced Water Purification: Harnessing the free radical and non‐radical in persulfate system

Study on the properties of polydopamine/hexadecyltrimethoxysilane co‐deposition functionalized modified graphene oxide and composite styrene–butadiene–styrene modified asphalt binder

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Utilizing Self‐Floating Cu₃BiS₃ Polydopamine Polyurethane Sponges for Enhanced Water Purification: Harnessing the free radical and non‐radical in persulfate system