【摘 要】
：
This study reported the rapid and green preparation of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) under microwave irradiation.In the synthe
【机 构】
：
SouthChinaUniversityofTechnology,China
【出 处】
：
The 4th Conference on Nanomaterials(cn2015)2015年第四届纳米材料学术研讨会
论文部分内容阅读
This study reported the rapid and green preparation of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) under microwave irradiation.In the synthesis,lignin with reducing groups and spatial three-dimensional structure was used as reducing and stabilizing agents without other chemical reagents.The lignin-Ag NPs were prepared with diameters around 24 nm,and the lignin-Au NPs around 20 nm.It was found that the nanoparticles were almost spherical,and stable in solution due to the capping of nature polymer lignin.The suggested mechanism is as follows: during the formation of AgNPs,lignin was oxidized and the side chains of lignin were partly disrupted into small molecules,such as hydrocarbon and alcohol.The prepared Ag NPs can act as selective and sensitive nanoprobes for Hg2+ detection with 19 other metal ions as control.
其他文献
In this talk,we report the recent progresses in the development of field-effect terahertz (THz) mixers[1-6].Mixing of THz electromagnetic wave in a field-effect
The novel properties of graphene-like honeycomb structure have spurred tremendous interest in investigatingother two-dimensional(2D) layered structures beyond g
Charge transport and energy transfer are demonstrated ultrahigh efficiently along the chain of conjugatedpolymers.Collini and Scholes(Science 2009,323,369-373)
Superconducting transition-edge sensors (TES),which have been successfully used in ground-based millimeter wave astronomical observations,are one promising dete
This paper reports the thermal and electrical stabilities of three GdBCO single-pancake coils,one impregnated with epoxy only (coil 1),another impregnated w
Recently,electricity demand has been increased.To cope with the increase of electricity demand,High voltage DC (HVDC) high temperature superconductor (HTS)
IF(In-flight Fragment) system is used to produce and analysis an isotope beam,a pre-separator is located in the front end of this system.The pre-separator r
As observations of the Sunyaev-Zeldovich(SZ) effect were tapered off,a new initiative is taken for the Yuan-Tseh Lee Array (YTLA,formerly AMiBA) to map CO inten
I proposed a concept of "multi-beam image horn" at the East Asia Receiver Workshop last year.It is a simple method to connect multi-beam far-field power pattern
Sonochemistry is an excellent technique to coat functional nanomaterials on various substrates,and imparting new properties to the substrates.After a short