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Wang L, Wang H, Rong M, Li W, Li N, Liu P, Li X, Zhang Z. Preparation of hyperbranched hydrophobic nano-silica and its superior needling-effect in PDMS defoam agent. J Colloid Interface Sci 2024; 670:698-708. [PMID: 38788437 DOI: 10.1016/j.jcis.2024.05.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/10/2024] [Accepted: 05/15/2024] [Indexed: 05/26/2024]
Abstract
Hydrophobic nano silica powder is a kind of important synergist to silicone defoaming agents. The large pore volume and branched chain conformation of silica nanoparticles present superior effects on defoaming properties. However, silica nanoparticles synthesized by liquid phase easily aggregate and pore collapse because of their high surface activity and polarity, leading to poorer dispersity and limited practicability. In this paper, a novel hydrophobic silica with a hyperbranched structure was designed through in-situ modifying method with hexamethyldisilazane (HMDS) and polydimethylsiloxane (PDMS) in the liquid phase. The trimethylsilanol generated by HMDS hydrolysis reacts quickly with the highly active hydroxyl groups on the silica, causing the surface properties of the nanoparticles to transform from polar to non-polar properties. The steric hindrance of the trimethyl silicon and the reduction of the surface polarity effectively prevent silica pores from collapsing and maintain the macropore structures to realize the hyperbranched silica. At the same time, the -Si (CH3)2- from PDMS endowed the hyperbranched silica with excellent hydrophobicity. When applied in the defoaming agent, the hydrophobicity of silica contributes to dewetting the foams, and the hyperbranched spatial structures play an enhanced needling effect. Therefore, this hydrophobic hyperbranched silica exhibited a surprising defoaming effect, which significantly reduced the defoaming time from 464.4 s to less than 2 s, superior to commercial defoaming silica (155.3 s). The defoaming efficiency reached 100 % within 2 s of the end of the shaking, and the defoamer antifoaming ability was improved to reach 27.5 min, which was 77 % higher than that of commercial defoamer.
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Affiliation(s)
- Linan Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Huanmin Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Mingming Rong
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China
| | - Wei Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China; Engineering Research Center for Nanomaterials Company Limited, Henan University, Jiyuan 459000, China
| | - Ning Li
- Engineering Research Center for Nanomaterials Company Limited, Henan University, Jiyuan 459000, China
| | - Peisong Liu
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China; Engineering Research Center for Nanomaterials Company Limited, Henan University, Jiyuan 459000, China
| | - Xiaohong Li
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China; Engineering Research Center for Nanomaterials Company Limited, Henan University, Jiyuan 459000, China.
| | - Zhijun Zhang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China; Engineering Research Center for Nanomaterials Company Limited, Henan University, Jiyuan 459000, China
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Wang H, Li S, Zhang Y, Wu W, Ali KAM, Li C. An Amphiphilic Surface with Improved Thermal Radiation for Water Harvesting. Molecules 2024; 29:2672. [PMID: 38893546 PMCID: PMC11173787 DOI: 10.3390/molecules29112672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 05/30/2024] [Accepted: 06/02/2024] [Indexed: 06/21/2024] Open
Abstract
Water scarcity poses a significant challenge for people living in arid areas. Despite the effectiveness of many bioinspired surfaces in promoting vapor condensation, their water-harvesting efficiency is insufficient. This is often exacerbated by overheating, which decreases the performance in terms of the micro-droplet concentration and movement on surfaces. In this study, we used a spotted amphiphilic surface to enhance the surfaces' water-harvesting efficiency while maintaining their heat emissivity. Through hydrophilic particle screening and hydrophobic groove modifying, the coalescence and sliding characteristics of droplets on the amphiphilic surfaces were improved. The incorporation of boron nitride (BN) nanoparticles further enhanced the surfaces' ability to harvest energy from condensation. To evaluate the water-harvesting performance of these amphiphilic surfaces, we utilized a real-time recording water-harvesting platform to identify microscopic weight changes on the surfaces. Our findings indicated that the inclusion of glass particles in hydrophobic grooves, combined with 1.0 wt.% BN nanoparticles, enhanced the water-harvesting efficiency of the amphiphilic surfaces by more than 20%.
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Affiliation(s)
- Han Wang
- College of Engineering, South China Agricultural University, Guangzhou 510642, China; (H.W.); (S.L.); (Y.Z.)
- School of Intelligent Engineering, Shaoguan University, Shaoguan 512158, China
| | - Shengtao Li
- College of Engineering, South China Agricultural University, Guangzhou 510642, China; (H.W.); (S.L.); (Y.Z.)
| | - Ye Zhang
- College of Engineering, South China Agricultural University, Guangzhou 510642, China; (H.W.); (S.L.); (Y.Z.)
| | - Weihui Wu
- School of Intelligent Engineering, Shaoguan University, Shaoguan 512158, China
| | - Khaled Abdeen Mousa Ali
- College of Engineering, South China Agricultural University, Guangzhou 510642, China; (H.W.); (S.L.); (Y.Z.)
- College of Agricultural Engineering, Al-Azhar University, Cairo 11751, Egypt
| | - Changyou Li
- College of Engineering, South China Agricultural University, Guangzhou 510642, China; (H.W.); (S.L.); (Y.Z.)
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Hernández-Contreras M, Cruz J, Gurrola M, Pamplona Solis B, Vega-Azamar R. Application of nanosilica in the construction industry: A bibliometric analysis using Methodi Ordinatio. MethodsX 2024; 12:102642. [PMID: 38660026 PMCID: PMC11041844 DOI: 10.1016/j.mex.2024.102642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/29/2024] [Indexed: 04/26/2024] Open
Abstract
The number of publications related to the implementation of nanotechnology in the construction industry, and specifically to the application of nanosilica (SiO2), has had a constant increase in recent years. Based on this, in the present work, an analysis was carried out using bibliometric techniques, with the aim at characterizing the development of specialized literature and identifying the largest areas of growth in the field, maintaining hydrophobic nanosilica as the research guideline. This analysis acquired information from the Scopus and Web of Science (WoS) databases to compare bibliometric indicators of the publications. It should be noted that, even though bibliometric analysis is useful to identify the study areas of greatest interest, to complement this work, the implementation of a method that helped in the research process to obtain the most important bibliography was required. This study implemented Methodi Ordinatio, which helped to take a new direction. Therefore, based on this method, a list of articles cataloged and ranked is obtained, which is the basis for integrating the final bibliographic portfolio. •The study applies the Methodi Ordinatio to obtain a portfolio of the most relevant articles to guide the researchers' work.•Insightful information can be obtained using VOSviewer to analyze and visualize metadata of the bibliographic portfolio.•The study demonstrates how the alpha value in the InOrdinatio formula modifies the resulting portfolio.
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Affiliation(s)
- M. Hernández-Contreras
- TecNM/ Instituto Tecnológico de Chetumal, Av. Insurgentes 330, Chetumal, QR 77013, Mexico
| | - J.C. Cruz
- TecNM/ Instituto Tecnológico de Chetumal, Av. Insurgentes 330, Chetumal, QR 77013, Mexico
| | - M.P. Gurrola
- IxM-CONAHCYT-Tecnológico Nacional de México/I.T. Chetumal, Insurgentes 330, Chetumal, QR 77013, Mexico
| | - B. Pamplona Solis
- TecNM/ Instituto Tecnológico de Chetumal, Av. Insurgentes 330, Chetumal, QR 77013, Mexico
| | - R.E. Vega-Azamar
- TecNM/ Instituto Tecnológico de Chetumal, Av. Insurgentes 330, Chetumal, QR 77013, Mexico
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Lizonova D, Trivanovic U, Demokritou P, Kelesidis GA. Dispersion and Dosimetric Challenges of Hydrophobic Carbon-Based Nanoparticles in In Vitro Cellular Studies. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:589. [PMID: 38607123 PMCID: PMC11013865 DOI: 10.3390/nano14070589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/13/2024]
Abstract
Methodologies across the dispersion preparation, characterization, and cellular dosimetry of hydrophilic nanoparticles (NPs) have been developed and used extensively in the field of nanotoxicology. However, hydrophobic NPs pose a challenge for dispersion in aqueous culture media using conventional methods that include sonication followed by mixing in the culture medium of interest and cellular dosimetry. In this study, a robust methodology for the preparation of stable dispersions of hydrophobic NPs for cellular studies is developed by introducing continuous energy over time via stirring in the culture medium followed by dispersion characterization and cellular dosimetry. The stirring energy and the presence of proteins in the culture medium result in the formation of a protein corona around the NPs, stabilizing their dispersion, which can be used for in vitro cellular studies. The identification of the optimal stirring time is crucial for achieving dispersion and stability. This is assessed through a comprehensive stability testing protocol employing dynamic light scattering to evaluate the particle size distribution stability and polydispersity. Additionally, the effective density of the NPs is obtained for the stable NP dispersions using the volumetric centrifugation method, while cellular dosimetry calculations are done using available cellular computational modeling, mirroring approaches used for hydrophilic NPs. The robustness of the proposed dispersion approach is showcased using a highly hydrophobic NP model (black carbon NPs) and two culture media, RPMI medium and SABM, that are widely used in cellular studies. The proposed approach for the dispersion of hydrophobic NPs results in stable dispersions in both culture media used here. The NP effective density of 1.03-1.07 g/cm3 measured here for black carbon NPs is close to the culture media density, resulting in slow deposition on the cells over time. So, the present methodology for dispersion and dosimetry of hydrophobic NPs is essential for the design of dose-response studies and overcoming the challenges imposed by slow particle deposition.
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Affiliation(s)
- Denisa Lizonova
- Nanoscience and Advanced Materials Center (NAMC), Environmental and Occupational Health Science Institute, School of Public Health, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Una Trivanovic
- Particle Technology Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Sonneggstrasse 3, CH-8092 Zürich, Switzerland
| | - Philip Demokritou
- Nanoscience and Advanced Materials Center (NAMC), Environmental and Occupational Health Science Institute, School of Public Health, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Georgios A. Kelesidis
- Nanoscience and Advanced Materials Center (NAMC), Environmental and Occupational Health Science Institute, School of Public Health, Rutgers University, 170 Frelinghuysen Road, Piscataway, NJ 08854, USA
- Particle Technology Laboratory, Institute of Energy and Process Engineering, Department of Mechanical and Process Engineering, ETH Zürich, Sonneggstrasse 3, CH-8092 Zürich, Switzerland
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Zhang H, Zhao X. Enhanced Anti-Wetting Methods of Hydrophobic Membrane for Membrane Distillation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300598. [PMID: 37219004 PMCID: PMC10427381 DOI: 10.1002/advs.202300598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 04/24/2023] [Indexed: 05/24/2023]
Abstract
Increasing issues of hydrophobic membrane wetting occur in the membrane distillation (MD) process, stimulating the research on enhanced anti-wetting methods for membrane materials. In recent years, surface structural construction (i.e., constructing reentrant-like structures), surface chemical modification (i.e., coating organofluorides), and their combination have significantly improved the anti-wetting properties of the hydrophobic membranes. Besides, these methods change the MD performance (i.e., increased/decreased vapor flux and increased salt rejection). This review first introduces the characterization parameters of wettability and the fundamental principles of membrane surface wetting. Then it summarizes the enhanced anti-wetting methods, the related principles, and most importantly, the anti-wetting properties of the resultant membranes. Next, the MD performance of hydrophobic membranes prepared by different enhanced anti-wetting methods is discussed in desalinating different feeds. Finally, facile and reproducible strategies are aspired for the robust MD membrane in the future.
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Affiliation(s)
- Honglong Zhang
- Lab of Environmental Science & TechnologyINETTsinghua UniversityBeijing100084P. R. China
| | - Xuan Zhao
- Lab of Environmental Science & TechnologyINETTsinghua UniversityBeijing100084P. R. China
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Wu D, Tan L, Ma C, Pan F, Cai W, Li J, Kong Y. Competitive Self-Assembly Interaction between Ferrocenyl Units and Amino Acids for Entry into the Cavity of β-Cyclodextrin for Chiral Electroanalysis. Anal Chem 2022; 94:6050-6056. [PMID: 35389624 DOI: 10.1021/acs.analchem.2c00777] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
At present, chiral electroanalysis of nonelectroactive chiral compounds still remains a challenge because they cannot provide an electrochemical signal by themselves. Here, a strategy based on a competitive self-assembly interaction of a ferrocene (Fc) unit and the testing isomers entering into the cavity of β-cyclodextrin (β-CD) was carried out for chiral electroanalysis. First of all, the Fc derivative was directly bridged to silica microspheres, followed by inclusion into the cavity of β-CD. As expected, once it was modified onto the surface of a carbon working electrode as an electrochemical sensor, SiO2@Fc-CD-WE, its differential pulse voltammetry signal would markedly decrease compared with the uncovered Fc. Next, when l- and d-isomers of amino acids that included histidine, threonine, phenylalanine, and glutamic acid were examined using SiO2@Fc-CD-WE, it showed an enantioselective entry of amino acids into the cavity of β-cyclodextrin instead of Fc, resulting in the release of Fc with signal enhancement. For histidine, glutamic acid, and threonine, l-isomers showed a higher peak current response compared with d-isomers. The peak current ratios between l- and d-isomers were 2.88, 1.21, and 1.40, respectively. At the same time, the opposite phenomenon occurred for phenylalanine with a peak current ratio of 3.19 between d- and l-isomers. In summary, we are assured that the recognition strategy based on the supramolecular interaction can enlarge the detection range of chiral compounds by electrochemical analysis.
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Affiliation(s)
- Datong Wu
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Lilan Tan
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Cong Ma
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Fei Pan
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Wenrong Cai
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Junyao Li
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yong Kong
- Jiangsu Key Laboratory of Advanced Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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Kim J, Jung H, Kim M, Bae H, Lee Y. Conductive Polymer Composites for Soft Tactile Sensors. Macromol Res 2021. [DOI: 10.1007/s13233-021-9092-6] [Citation(s) in RCA: 3] [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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Wang C, Liu S, Li M, Wang Z, Luo H, Fan W, Liu Z, Liu F, Wang H. Novel Environmentally Friendly Waterborne Epoxy Coating with Long-Term Antiscaling and Anticorrosion Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9439-9450. [PMID: 34314588 DOI: 10.1021/acs.langmuir.1c01124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Metal pipes in industrial production are exposed to various corrosive ions. The combined action of these ions with oxygen in water causes corrosion and contamination of the metal pipes and equipment. In addition, metallic ions in water react with anions to form scale on the surface of the metal, which significantly reduces the service life of the metal and equipment, resulting in safety hazards. Waterborne coatings have attracted tremendous attention due to the less negative impact on the environment, but their practical applications are severely restricted by poor barrier properties and poor mechanical durability. Herein, the barrier properties of water-based coatings are successfully improved by adding functional slow-release nanofillers, and the fillers also endow the coating with excellent antiscaling properties. A functional slow-release nanofiller (lecithin/SiO2/HEDP) was prepared using HEDP (etidronic acid) as the scale inhibitor active material and SiO2 as the carrier, combined with a phospholipid membrane with slow-release permeability. With the addition of slow-release fillers, compared with the EP coating, the impedance modulus of composite coatings increases about 1 order of magnitude, the scale inhibition rate is as high as 80.7%, and the antiscaling life is double that of the coating without the phospholipid-coated filler. Thus, this study is expected to provide a new perspective for the preparation of new slow-release fillers and high-efficiency scale inhibitor coatings.
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Affiliation(s)
- Chijia Wang
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
- School of Chemical Engineering and Technology and State Key Laboratory for Chemical Engineering, Tianjin University, Tianjin 300350, P. R. China
| | - Shupei Liu
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
| | - Meiling Li
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
| | - Zihua Wang
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
| | - Hongxin Luo
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
| | - Weihao Fan
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
| | - Zhanjian Liu
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
| | - Fatang Liu
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
| | - Huaiyuan Wang
- Chemistry and Chemical Engineering College, Northeast Petroleum University, Daqing 163000, P. R. China
- School of Chemical Engineering and Technology and State Key Laboratory for Chemical Engineering, Tianjin University, Tianjin 300350, P. R. China
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Jia H, Dai J, Miao L, Wei X, Tang H, Huang P, Jia H, He J, Lv K, Liu D. Potential application of novel amphiphilic Janus-SiO2 nanoparticles stabilized O/W/O emulsion for enhanced oil recovery. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126658] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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