Preparation of Silver Nanoparticles via Rapid Expansion of Water in Carbon Dioxide Microemulsion into Reductant Solution

Langmuir ◽  
2001 ◽  
Vol 17 (19) ◽  
pp. 5707-5710 ◽  
Author(s):  
Ya-Ping Sun ◽  
Pornpen Atorngitjawat ◽  
Mohammed J. Meziani
2005 ◽  
Vol 62 (4) ◽  
pp. 183-189 ◽  
Author(s):  
Tsutomu NAKANISHI ◽  
Kazu-aki HATA ◽  
Shunsaku KATOH ◽  
Takashi MORIYOSHI

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 812 ◽  
Author(s):  
Monika Szymańska-Chargot ◽  
Monika Chylińska ◽  
Piotr M. Pieczywek ◽  
Anna Walkiewicz ◽  
Giorgia Pertile ◽  
...  

In this research, it was proposed to use carrot cellulose nanofibrils (CCNF) isolated from carrot pomace modified with silver nanoparticles (AgNPs) as a filler of polylactic acid (PLA) composites matrix. The new procedure was based on two steps: first, the preparation of nanocellulose modified with metal nanoparticles, and then the combination with PLA. Two concentrations—0.25 mM and 2 mM—of AgNO3 were used to modify CCNF. Then, PLA was mixed with the filler (CCNF/AgNPs) in two proportions 99:1 and 96:4. The influence of CCNF/AgNPs on mechanical, hydrophilic, thermal, and antibacterial properties of obtained nanocomposites was evaluated. The greatest improvement of mechanical properties was observed for composite containing CCNF with 2 mM of AgNPs, which obtained the lowest Young modulus and highest strain at break. The degradation temperature was lower for PLA with CCNF/AgNPs, but crystallization temperature wasn’t influenced. The addition of CCNF/AgNPs also increased hydrophilicity. The transmission rates of oxygen, nitrogen, and carbon dioxide also increased after the addition of CCNF/AgNPs to PLA. The antibacterial function against Escherichia coli and Bacillus cereus was obtained after the addition of AgNPs but only at the contact surface with the material made, suggesting the lack of migration of nanoparticles from the composite.


2006 ◽  
Vol 6 (2) ◽  
pp. 562-567 ◽  
Author(s):  
John L. Fulton ◽  
Dean W. Matson ◽  
Klaus H. Pecher ◽  
James E. Amonette ◽  
John C. Linehan

2012 ◽  
Vol 5 (2) ◽  
pp. 735-780 ◽  
Author(s):  
B. Pfeil ◽  
A. Olsen ◽  
D. C. E. Bakker ◽  
S. Hankin ◽  
H. Koyuk ◽  
...  

Abstract. A well documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data set of marine surface CO2, which had been subject to quality control (QC). Many additional CO2 data, not yet made public via the Carbon Dioxide Information Analysis Center (CDIAC), were retrieved from data originators, public websites and other data centres. All data were put in a uniform format following a strict protocol. Quality control was carried out according to clearly defined criteria. Regional specialists performed the quality control, using state-of-the-art web-based tools, specially developed for accomplishing this global team effort. SOCAT version 1.5 was made public in September 2011 and holds 6.3 million quality controlled surface CO2 data points from the global oceans and coastal seas, spanning four decades (1968–2007). Three types of data products are available: individual cruise files, a merged complete data set and gridded products. With the rapid expansion of marine CO2 data collection and the importance of quantifying net global oceanic CO2 uptake and its changes, sustained data synthesis and data access are priorities.


OALib ◽  
2015 ◽  
Vol 02 (04) ◽  
pp. 1-14 ◽  
Author(s):  
Ali Zeinolabedini Hezave ◽  
Mostafa Lashkarbolooki ◽  
Feridun Esmaeilzadeh

2016 ◽  
pp. 1693-1700 ◽  
Author(s):  
Nusratullah Khan ◽  
Asadulah Shah ◽  
Kajal Nusratullah

There has been rapid expansion of the information technology due to contribution to emission of carbon dioxide. The cloud computing technology has been perceived to present solution to various studies that try to investigate on the most appropriate ways of reducing the carbon dioxide gas emissions. The current study aimed at investigating the adoption of virtualization in cloud computing as a means through which the green computing can be achieved. According to the paper virtualization among its many process helps in curtailing equipment required through cloud computing resources to facilitate adequate use of resources to make use of energy and assets.


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