Synthesis of Gold Nanoparticles Using Chemically Modified Biosorbents through Sorption and Reduction

来源 :The 6th International Conference on Separation and Technolog | 被引量 : 0次 | 上传用户:soy_chen
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Chemically modified biosorbents have showed superior performance to raw biosorbents for removal and recovery of precious metals [1].The amine groups were known to be biding sites for anion metals and subsequent formation of their nanoparticles [2].In this study,the biomass of Corynebacterium glutamicum was coated with polyethylenimine (PEIB) according to our previous report [3] and used to enhance sorption and synthesis of gold nanoparticles (AuNPs).In the series of experiments,the effects of the contact time (0-6 h),temperature (30 and 50 ℃),and initial metal concentration (160,265 and 515 ppm) were studied.
其他文献
In membrane separation,hydrophobic microporous membranes play a key role in gas-fiquid seperation processes such as membrane distillation,membrane absorption,and so on.However,additional mass transfer
会议
A inter circulating fluidized bed flue gas desulfurization system(Turbo-FGD) was developed and evaluated for sulfur dioxide and boron compounds(B2O3) from high-temperature stack gases by use of high t
会议
Since a depletion of fossil fuels is expected in a near future,the research and the development looking for the alternative fuel have been carried out for a long time.Several studies have focused on t
会议
Coal mine methane(CMM),consisting mainly of methane (CH4),is not only one of the major disasters for coal mines but also a significant source of clean energy and environmental pollution [1].Some gas s
会议
Traditional solvent recovery in the extraction step of edible oil processing is distillation,which consumes large amounts of energy.If the distillation is replaced by membrane process,the energy consu
会议
Proton exchange membrane fuel cells (PEMFCs) have attracted considerable attention as new power sources for vehicles and portable devices.Currently,Perfluorosulfonic acid membranes such as Nation(@) a
会议
In this paper,block copolymer poly (amide-6-b-ethylene oxide) (PEBA 1657) is used to prepare composite membranes for sour gas capturing.Due to the special affinity of PEO segment,PEBA 1657 shows remar
会议
To reduce the methanol permeability and at the same time,to increase the proton conductivity,THS-PSA containing silica compound which could be a role of the methanol transport reduction and sulfonic a
会议
The wastewater after acid precipitation from papermaking black liquor has been treated by membrane of ultrafiltration,nanofiltration and reverse osmosis [1-6].During the experiment,the last mixed perm
会议
In this study,a new type of ultrathin solid polymer electrolyte PEI/Pebax2533/AgBF4 composite membrane (PEI:polyetherimide; Pebax2533:Polynylonl2/tetramethylene oxide block copolymer,PA12-PTMO) is pre
会议