Structural and optical characterization of hydroxy-propyl methyl cellulose-capped ZnO nanorods

Bhatti, H. S.; Kumar, Sunil; Singh, Karamjit; Kavita, .

doi:10.1007/s10853-013-7348-z

Cited by 18 publications

(10 citation statements)

References 39 publications

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“…Attributing to the exchange of solvent and coagulant during the coagulation, the obtained RCZ films demonstrated lower ZnO content than the theoretical value (6.4–21.6 wt %). Compared with the previous work, this method is facile, green, and economical due to the absence of organic reagents (DMF, , acetone, , triethanolamine, , and alcohols , ). It could easily be applied to scale up production at a viscose film (cellophane) plant.…”

Section: Resultsmentioning

confidence: 98%

“…Cellulose products, such as paper, regenerated cellulose (RC) films, and nonwoven fibers, have many advantages including chemical stability, biocompatibility, biodegradability, and good mechanical properties . They have been used extensively in the fields of membrane separation, pharmaceuticals, cosmetics, and the food industry. , Recently, there has been increased interest in the use of nanofibrillated cellulose for the production of nanocomposites containing inorganic nanoparticles. − However, there have thus far been few reports concerning the fabrication of ZnO coated cellulose matrix. − In one instance, Alejandro et al reported a simple mixing process using a high energy mixer/mill machine under high pressure (750 MPa) . Through a common papermaking process, nanofibrillated cellulose coated with 1.21–2.28 wt % ZnO was prepared with good antibacterial properties.…”

Section: Introductionmentioning

confidence: 99%

“…Different carbohydrates (glucose, sucrose, alginate, and starch) have thus been employed as capping agents to facilitate the adhesion of ZnO nanoparticles onto the surface of cellulose fibers . Chemical methods, such as precipitation and sol–gel approaches, have shown some distinct advantages over physical methods, including the morphology control of ZnO and inexpensive equipment. ,,− The synthesis is generally performed in an alcohol or alkaline solution, and zinc salts such as ZnCl 2 , Zn(NO 3 ) 2 , ,,, and Zn(Ac) 2 ,,− are used as starting materials. Cellulose in the form of fibers, paper, bacterial cellulose, and cotton fabrics are immersed into the precursor solution, and nano- and microstructures grow directly on the matrix.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Construction of Cellulose Based ZnO Nanocomposite Films with Antibacterial Properties through One-Step Coagulation

Liu

et al. 2015

ACS Appl. Mater. Interfaces

251

131

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Cellulose based ZnO nanocomposite (RCZ) films were prepared from cellulose carbamate-NaOH/ZnO solutions through one-step coagulation in Na2SO4 aqueous solutions. The structure and properties of RCZ films were characterized using XRD, FTIR, XPS, SEM, TEM, TG, tensile testing, and antibacterial activity tests. The content of ZnO in RCZ films was obtained in the range of 2.7-15.1 wt %. ZnO nanoparticles with a hexagonal wurtzite structure agglomerated into large particles, which firmly embedded in the cellulose matrix. RCZ films displayed good mechanical properties and high thermal stability. Moreover, the films exhibited excellent UV-blocking properties and antibacterial activities against Staphylococcus aureus and Escherichia coli. A dramatic reduction in viable bacteria was observed within 3 h of exposure, while all of the bacteria were killed within 6 h. This work provided a novel and simple pathway for the preparation of regenerated cellulose films with ZnO nanoparticles for application as functional biomaterials.

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Section: Resultsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Construction of Cellulose Based ZnO Nanocomposite Films with Antibacterial Properties through One-Step Coagulation

Liu

et al. 2015

ACS Appl. Mater. Interfaces

251

131

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“…In another work, effect of HPMC on the morphological and optical properties of ZnO nanorods was seen. It was observed that the structural and optical characteristics have strong dependence on capping concentration [19]. From the literature survey, it is clear that no work has been reported to see the interaction of HPMC with ZnS quantum dots.…”

Section: Introductionmentioning

confidence: 99%

Structural and optical behavior of hexa-propyl methyl cellulose (HPMC) capped ZnS core–shell quantum dots

Jeon

Kang

Jain

et al. 2015

J Mater Sci: Mater Electron

Self Cite

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HPMC capped ZnS core-shell quantum dots were synthesized by using simple and eco friendly chemical precipitation method in which HPMC acts as a surface passivator as well as a functionalization agent to tune the properties. Morphological and optical characterizations were done to see the effect of HPMC capping on ZnS quantum dots. Morphological studies was done by using XRD and TEM. XRD studies confirms the pure zinc blende phase for all the samples. TEM studies shows that HPMC is efficiently controlling the agglomeration. Optical studies were done by using UV-visible and FTIR. UV-visible studies shows that bandgap is tunable on both sides of the wavelength depending on the concentration of HPMC. FTIR studies confirms the coating of HPMC on the surface of ZnS quantum dots. Laser induced time resolved photoluminescence studies were also done to see the effect of HPMC on the intensity of excited state life time of quantum dots. It is observed that the structural and optical characteristics have strong dependence on capping concentration. As HPMC is a very important viscoelastic polymer and organic surfactant used in various types of cosmetic binding applications and drug formulations, these studies opens a new way in the area of novel cosmetic design, efficient drug delivery and targeting and also specific optoelectronic applications using chalcogenide quantum dots.

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“…Bands at wavenumbers around 1369 e 1452 cm -1 are assigned to the angular deformation of C-H bonds within (CH 2 ) n chains. The bands close to 1639 e 3455 cm -1 are related to the angular and axial deformations of the residual hydroxyl groups or adsorbed water, present in the HPMC lm, respectively (Bhatti et al 2013).…”

mentioning

confidence: 99%

Aqueous Preparation of Self-Supported Hydroxypropyl Methylcellulose-Polyaniline Conducting Films and the Evaluation of Their Electrical and Mechanical Properties

Maeda

Corrêa

Hamanaka

et al. 2022

Preprint

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The purpose of this work was to develop a simple method to produce self-supported and homogeneous films composed of hydroxypropyl methylcellulose (HPMC) and polyaniline (PANI) by the simple mixture of aqueous solutions of both polymers with subsequent drying. The addition of HPMC, a cellulose derivative with an excellent film-forming capacity, was fundamental to overcoming the poor processability of pristine PANI film, which impairs its use in many technological applications. Despite being an insulating polymer, the addition of HPMC did not significantly decrease the conductivity and all hybrid films showed conductivity in the order of 10− 2 − 10− 3 S cm− 1, which is in the range for metals or semiconductors. The typical electroactivity of PANI was also maintained with the addition of HPMC. Also, as a beneficial, adding HPMC the thermal stability and the mechanical properties of the pristine PANI were improved. Cellulose-containing conducting polymers with electroactive activity can be considered as a material of the future, with possible applications in several areas, such as smart wallpapers, e-papers, and sensors.

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Structural and optical characterization of hydroxy-propyl methyl cellulose-capped ZnO nanorods

Cited by 18 publications

References 39 publications

Construction of Cellulose Based ZnO Nanocomposite Films with Antibacterial Properties through One-Step Coagulation

Construction of Cellulose Based ZnO Nanocomposite Films with Antibacterial Properties through One-Step Coagulation

Structural and optical behavior of hexa-propyl methyl cellulose (HPMC) capped ZnS core–shell quantum dots

Aqueous Preparation of Self-Supported Hydroxypropyl Methylcellulose-Polyaniline Conducting Films and the Evaluation of Their Electrical and Mechanical Properties

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