Preparation of hexadecyltrimethoxysilane-modified silica nanocomposite hydrosol and superhydrophobic cotton coating

Xu, Lixin Colin; Wang, Liming; Shen, Yong; Ding, Ying; Cai, Zaisheng

doi:10.1007/s12221-015-1082-x

Cited by 52 publications

(26 citation statements)

References 36 publications

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“…Additionally, a characteristic peak was obtained at 1561 cm −1 , which corresponds to the deformation of NH 2 groups due to hydrogen bonding, thereby confirming the role of APTES in ZnO attachment. After deposition of HDTMS, a new peak at 2856 cm −1 was obtained, which corresponds to the symmetric stretching of the CH 2 groups . Due to the long alkyl chain of HDTMS, the intensity of the peak is significantly high, confirming the presence of HDTMS on the fabric surface.…”

Section: Resultsmentioning

confidence: 89%

Green Synthesis of Robust Superhydrophobic Antibacterial and UV‐Blocking Cotton Fabrics by a Dual‐Stage Silanization Approach

Agrawal

Tan

Low

et al. 2019

Adv Materials Inter

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on the leaf surface results in high water contact angle (WCA) of >150° and low sliding angle of <10°. [2] Such a surface termed as "superhydrophobic" or "ultrahydrophobic," has now found myriad applications in our day-to-day lives. Superhydrophobic coatings are now being extensively investigated for applications in automobile, aerospace, building, marine, and clean energy industries. They are also explored on flexible substrates such as nonwoven materials like paper for bandages [3] and woven materials like textiles for clothing, oil-water separation, food packaging and health-care applications. [4] Surface modification of the textiles has gained increasing attention due to the flexibility, easy availability, and inexpensiveness of the raw materials. Superhydrophobicity improves the performance of the fabric, enhances the shelf life by reducing the number of laundering cycles, and aids in minimizing the expenditure of energy and resources in maintaining these materials. Various researchers have successfully demonstrated the synthesis of superhydrophobic fabrics, [5] and additional functions like antibacterial activity, [6] UV blocking, [7] electrical conductivity, [8] flame redardancy, [9] photocatalytic activity, [10] and self-healing ability [11] are now gaining attention.With growing awareness among the consumers, products that are safe, eco-friendly, and in the meantime ensuring a comfortable and healthy life are in great demand nowadays. As textiles are universally utilized for manufacturing clothes and garments, synthesis of multifunctional fabrics with superhydrophobicity, antibacterial activity, and UVblocking ability would result in manifold improvement of clothing performance. Incorporation of superhydrophobicity will make fabrics stain resistant, self-cleanable, and reduce laundering care. [12] Antibacterial activity over the surface will ensure resistance from foul odor and growth of contagious microorganisms under imperfect weather conditions. [13] Additionally, UV-blocking property would protect the wearer from harmful UV rays making these fabrics useful for outdoor purposes. [14] These properties would further enhance its application in health care, military, and various other industries.Synthesis of multifunctional fabrics with long-lasting durability remains a quest for researchers in the past decade. In this work, robust coatings on cotton fabrics for superhydrophobic, antibacterial, and UV-blocking functionalities by a dual-stage silanization technique are reported. Aminopropyltriethoxysilane is utilized as a silane cross-linker to anchor zinc oxide nanoparticles to the pristine cotton fabric surface, followed by modification with a silane hydrophobe, hexadecyltrimethoxysilane. This dual-silanization approach results in highly functional fabrics displaying superhydrophobicity with a water contact angle of 154°, water shedding angle of 2°, antibacterial activity of up to 98%, and UV-blocking ability more than 200 times of pristine cotton. The as-prepared fabrics display excellent durabili...

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Section: Resultsmentioning

confidence: 89%

Green Synthesis of Robust Superhydrophobic Antibacterial and UV‐Blocking Cotton Fabrics by a Dual‐Stage Silanization Approach

Agrawal

Tan

Low

et al. 2019

Adv Materials Inter

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“…According to the results, characteristic peaks in the ranges of 1100-1120 cm -1 , 810-820 cm -1 and 470-480 cm -1 are attributed to Si-O-Si asymmetrical stretching vibrations [28], symmetrical stretching vibrations 9 [29,30] and bending vibrations respectively [29,30] (Figures 3-a and b). After modification with APTES (Figures 3-b and c), the small sharp peak at 697 cm -1 appears due to methyl rock vibrations [29,30]. The peaks in the ranges of 1475-1490 cm -1 and 1575-1585 cm -1 correspond to C-H and NH2 absorptions respectively [31].…”

Section: Resultsmentioning

confidence: 99%

A temperature-controlled method to produce Janus nanoparticles using high internal interface systems: Experimental and theoretical approaches

Sharifzadeh

Salami‐Kalajahi

Hosseini

et al. 2016

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…The number of the hydroxyl groups was three times of the hexadecylsilanol molecules. On the other hand, due to the hydrophilicity of TiO2 coating, TiO2 on the coating surface adsorbed a large amount of -OH, which led to the chemical link between hexadecyl groups and threedimensional Ti-O-Si network structures [53]. As a result, the long-chain alkylfunctionalized TiO2 nanoparticles with Si-O-Ti three-dimensional network structures were obtained, as shown in Fig.…”

Section: Preparation Of Hydrophobic Hdtms-tio2 Coatingsmentioning

confidence: 99%

Fluorine-free and hydrophobic hexadecyltrimethoxysilane-TiO2 coated mesh for gravity-driven oil/water separation

Cai

Zhao

Quan

et al. 2020

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Superhydrophobic and superoleophilic meshes have attracted great attention in oil/water separating application. However, superhydrophobic surfaces are not only complicated in preparation but also easy to break in practical applications. In this paper, we prepared fluorine-free hydrophobic hexadecyltrimethoxysilane (HDTMS)-TiO2 coated meshes with properties of cost-effectiveness, easy to manufacture, and high separation efficiency by a liquid phase deposition method. The surface topography, composition, and functional groups of the meshes were characterized by field emission scanning electron microscope (FE-SEM), energy dispersive X-ray spectroscopy (EDS), Xray photoelectron spectroscopy (XPS), and Fourier transform microscopic infrared spectrometer (FT-IR) spectrum, respectively. A new gravity-driven oil/water separator was designed for the separation experiments. The separation efficiency of the hydrophobic HDTMS-TiO2 coated meshes maintained over 97.8% after 35 separating cycles. This study indicated that the superhydrophobicity of the separating mesh was nonessential for the highly efficient oil-water separation. The fluorine-free hydrophobic HDTMS-TiO2 coated meshes provided an economical and beneficial solution to treat 2 industrial oily wastewater mixtures and environmental oil spills.

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Preparation of hexadecyltrimethoxysilane-modified silica nanocomposite hydrosol and superhydrophobic cotton coating

Cited by 52 publications

References 36 publications

Green Synthesis of Robust Superhydrophobic Antibacterial and UV‐Blocking Cotton Fabrics by a Dual‐Stage Silanization Approach

Green Synthesis of Robust Superhydrophobic Antibacterial and UV‐Blocking Cotton Fabrics by a Dual‐Stage Silanization Approach

A temperature-controlled method to produce Janus nanoparticles using high internal interface systems: Experimental and theoretical approaches

Fluorine-free and hydrophobic hexadecyltrimethoxysilane-TiO2 coated mesh for gravity-driven oil/water separation

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