Metal nanoparticle-embedded bacterial cellulose aerogels via swelling-induced adsorption for nitrophenol reduction

2020 ◽  
Vol 143 ◽  
pp. 922-927
Author(s):  
Lian Song ◽  
Lian Shu ◽  
Yaquan Wang ◽  
Xiong-Fei Zhang ◽  
Zhongguo Wang ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Metal Nanoparticle ◽  
Nitrophenol Reduction ◽  
Induced Adsorption

scholarly journals Self‐Assembly of Mechanoplasmonic Bacterial Cellulose–Metal Nanoparticle Composites

2020 ◽  
Vol 30 (40) ◽  
pp. 2004766 ◽  
Author(s):  
Olof Eskilson ◽  
Stefan B. Lindström ◽  
Borja Sepulveda ◽  
Mohammad M. Shahjamali ◽  
Pau Güell‐Grau ◽  
...  
Keyword(s):  
Bacterial Cellulose ◽  
Self Assembly ◽  
Metal Nanoparticle ◽  
Nanoparticle Composites

Highly dispersed silver nanoparticles confined in a nitrogen-containing covalent organic framework for 4‑Nitrophenol reduction

2021 ◽  
Author(s):  
Aoyun Shen ◽  
Ruiqing Luo ◽  
Xinrong Liao ◽  
Chiyang He ◽  
Yongqiang Li
Keyword(s):  
Silver Nanoparticles ◽  
Heterogeneous Catalysts ◽  
Metal Nanoparticle ◽  
Covalent Organic Framework ◽  
High Affinity ◽  
Nitrophenol Reduction ◽  
Highly Dispersed ◽  
Organic Framework

One of the key challenges in preparing metal nanoparticle (NPs)-based heterogeneous catalysts is to design host substrates with abundant high affinity anchoring sites to addressing the problem that metal NPs,...

Size-dependent emission of a dipole coupled to a metal nanoparticle

MRS Advances ◽  
2020 ◽  
Vol 5 (62) ◽  
pp. 3315-3325
Author(s):  
Viktoriia Savchuk ◽  
Arthur R. Knize ◽  
Pavlo Pinchuk ◽  
Anatoliy O. Pinchuk
Keyword(s):  
Numerical Analysis ◽  
Quantum Yield ◽  
Electric Dipole ◽  
Incident Radiation ◽  
Metal Nanoparticle ◽  
Plasmonic Nanoparticle ◽  
Size Dependent ◽  
Emission Enhancement ◽  
Electric Dipoles

AbstractWe present a systematic numerical analysis of the quantum yield of an electric dipole coupled to a plasmonic nanoparticle. We observe that the yield is highly dependent on the distance between the electric dipole and the nanoparticle, the size and permittivity of the nanoparticle, and the wavelength of the incident radiation. Our results indicate that enhancement of the quantum yield is only possible for electric dipoles coupled to a nanoparticle with a radius of 20 nm or larger. As the size of the nanoparticle is increased, emission enhancement occurs at wavelengths dependent on the coupling distance.

Incorporation of micro/nanoparticles of PCL with essential oil of Cymbopogon nardus in bacterial cellulose

2018 ◽  
Vol 1 (2) ◽  
pp. 37
Author(s):  
Aline Krindges ◽  
Vanusca Dalosto Jahno ◽  
Fernando Morisso
Keyword(s):  
Particle Size ◽  
Particulate Matter ◽  
Essential Oil ◽  
Zeta Potential ◽  
Bacterial Cellulose ◽  
Culture Medium ◽  
Static Culture ◽  
Cymbopogon Nardus ◽  
Cellulose Membranes

Incorporation studies of particles in different substrates with herbal assets growing. The objective of this work was the preparation and characterization of micro/nanoparticles containing cymbopogon nardus essential oil; and the incorporation of them on bacterial cellulose. For the development of the membranes was used the static culture medium and for the preparation of micro/nanoparticles was used the nanoprecipitation methodology. The incorporation of micro/nanoparticles was performed on samples of bacterial cellulose in wet and dry form. For the characterization of micro/nanoparticles were carried out analysis of SEM, zeta potential and particle size. For the verification of the incorporation of particulate matter in cellulose, analyses were conducted of SEM and FTIR. The results showed that it is possible the production and incorporation of micro/nanoparticles containing essential oil in bacterial cellulose membranes in wet form with ethanol.

Reducing the Breakdown Threshold in DC Microdischarges via Metal Nanoparticle Seeding

2015 ◽  
Author(s):  
Jordan C. Sawyer ◽  
Jacques Abboud ◽  
Zhili Zhang ◽  
Steven Adams
Keyword(s):  
Metal Nanoparticle ◽  
Breakdown Threshold

What are the ranges and basis of auxeticity in the phases of cellulose microfibrils?

2017 ◽  
Author(s):  
Akwasi Asamoah
Keyword(s):  
Bacterial Cellulose ◽  
Raman Spectra ◽  
Laser Power ◽  
Microfibrillated Cellulose ◽  
Glass Slide ◽  
Flax Fibre ◽  
Cellulose Microfibrils

<p>One sample of 1D bundle of cellulose microfibrils in the form of lignified flax fibre (0.10526 mm x 10 mm), and one 2D networks of cellulose microfibrils in the form of tunicate cellulose (0.07 mm x 5 mm x 10 mm), bacterial cellulose (0.135 mm x 5 mm x 10 mm) and microfibrillated cellulose (0.08 mm x 5 mm x 10 mm) were put on a glass slide parallel to the principal spectrometer axis. Raman spectra were measured all round in-plane under both half (in 5° steps) polarisation from 0° to 360° in extended mode between 100 cm<sup>-1</sup> and 1150 cm<sup>-1</sup> in 3 accumulations at 10s exposure and 100% laser power. The cursor was placed at the peak of the 1095 cm<sup>-1</sup> band, and intensity read.</p>

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