Adsorption-Based Synthesis of Magnetically Responsive and Interfacially Active Composite Nanoparticles for Dewatering of Water-in-Diluted Bitumen Emulsions

Liang, Chen1; He, Xiao1; Liu, Qingxia1; Xe, Zhenghe1,2

2018-08

10.1021/acs.energyfuels.8b01187

ENERGY & FUELS   影响因子和分区

0887-0624

1520-5029

Magnetically responsive and interfacially active composite nanoparticles comprising an inner magnetic core and an outer layer of interfacially active materials were prepared by first priming iron oxide (Fe3O4) nanoparticles with sodium carboxymethyl cellulose (CMC), followed by the adsorption of ethyl cellulose (EC) on the CMC-primed nanoparticles. In contrast to the previous preparation methods, synthesizing magnetically responsive and interfacially active composite nanoparticles by sequential adsorption of contrasting cellulosic materials without unnecessary derivatization reactions is much simpler and more energy efficient while generating less waste. The resulting composite nanoparticles are interfacially active and thus can be effectively partitioned at the oil-water interface. Once the nanoparticles attached to the interface, multiphase materials will be magnetically tagged as desired and effectively manipulated or isolated by an applied magnetic field. The sequential adsorption of CMC and EC on iron oxide surface was investigated using a quartz crystal microbalance with dissipation monitoring (QCM-D). The adsorption of CMC on bare iron oxide surface can not only enhance the subsequent adsorption of EC on CMC-primed iron oxide surface, but also drastically improved colloidal stability of iron oxide dispersions. Quick phase separation of emulsions, oily rag layers, and sludge was achieved by applying the magnetically responsive and interfacially active composite nanoparticles.

SCI ; EI

英语

通讯

Zhujiang Talent Program of Guangdong Province[K17253301]

Energy & Fuels ; Engineering

Energy & Fuels ; Engineering, Chemical

WOS:000442448300006

AMER CHEMICAL SOC

20182705393931

Adsorption ; Cellulose ; Dispersions ; Energy efficiency ; Iron oxides ; Magnetite ; Nanomagnetics ; Phase interfaces ; Phase separation ; Quartz crystal microbalances ; Synthesis (chemical)

Energy Conservation:525.2 ; Magnetism: Basic Concepts and Phenomena:701.2 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2 ; Cellulose, Lignin and Derivatives:811.3 ; Solid State Physics:933 ; Special Purpose Instruments:943.3 ; Materials Science:951

ENGINEERING

Web of Science

1.Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 1H9, Canada
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Liang, Chen,He, Xiao,Liu, Qingxia,et al. Adsorption-Based Synthesis of Magnetically Responsive and Interfacially Active Composite Nanoparticles for Dewatering of Water-in-Diluted Bitumen Emulsions[J]. ENERGY & FUELS,2018,32(8):8078-8089.

Liang, Chen,He, Xiao,Liu, Qingxia,&Xe, Zhenghe.(2018).Adsorption-Based Synthesis of Magnetically Responsive and Interfacially Active Composite Nanoparticles for Dewatering of Water-in-Diluted Bitumen Emulsions.ENERGY & FUELS,32(8),8078-8089.

Liang, Chen,et al."Adsorption-Based Synthesis of Magnetically Responsive and Interfacially Active Composite Nanoparticles for Dewatering of Water-in-Diluted Bitumen Emulsions".ENERGY & FUELS 32.8(2018):8078-8089.