Scale-inhibition and adsorption capacity due to a synergistic effect between a magnetic field and graphene oxide-carbon nanotube composite

2018 ◽  
Vol 113 ◽  
pp. 121-130
Author(s):  
Lili Jiang ◽  
Liefei Pei ◽  
Haitao Yu ◽  
Zongshu Zou ◽  
Fengman Shen ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Synergistic Effect ◽  
Adsorption Capacity ◽  
Scale Inhibition ◽  
Carbon Nanotube Composite

scholarly journals The Effect of Temperatures on the Synergistic Effect between a Magnetic Field and Functionalized Graphene Oxide-Carbon Nanotube Composite for Pb2+ and Phenol Adsorption

2018 ◽  
Vol 2018 ◽  
pp. 1-13 ◽  
Author(s):  
Li-li Jiang ◽  
Hai-Tao Yu ◽  
Lie-fei Pei ◽  
Xin-gang Hou
Keyword(s):  
Magnetic Field ◽  
Graphene Oxide ◽  
Synergistic Effect ◽  
Adsorption Capacity ◽  
Adsorption Process ◽  
Free Water ◽  
Order Kinetic ◽  
Relative Variation ◽  
Circulating Water ◽  
Scale Inhibition

The effect of temperature on scale inhibition and adsorption properties for Pb2+ and phenol was studied under the synergistic effect of the magnetic field and the adsorbent. The sulfhydryl and amino-modified graphene oxide/oxidized multiwalled carbon nanotubes (NH2-SH-GO/o-MWCNTs) were synthesized and applied as the adsorbent. Additionally, changes in pH, conductivity, molecular activation energy, the relative variation of intramolecular energy and the relative variation in the proportion of free water, and adsorption capacity of the adsorbent were studied under different temperatures of circulating water. The relative variation of the proportion of free water increased with the increasing temperatures. The above results indicated that higher temperature would be detrimental to scale inhibition. The higher the temperatures, the lower the intramolecular energies. And the more stable molecules are formed in the circulating water. Thus, the results reduced the tendency to scale formation. The increased temperatures promoted the adsorption capacity of the adsorbent for Pb2+ and phenol. The adsorption process for Pb2+ and phenol conformed to the pseudo-second-order kinetic model and Freundlich isotherm model under the synergistic effect of magnetic field and NH2-SH-GO/MWCNTs. After five cycles, the adsorption capacities of the adsorbent for Pb2+ and phenol separately decreased by 59.86% and 76.36%. The aforementioned results reveal that temperatures can promote the adsorption process for Pb2+ and phenol, and the synergistic effect between magnetic field and the adsorbent has a potential application for water treatment.

Electrophoretically deposited graphene oxide and carbon nanotube composite for electrochemical capacitors

2015 ◽  
Vol 26 (41) ◽  
pp. 415203 ◽  
Author(s):  
Obafunso A Ajayi ◽  
Daniel H Guitierrez ◽  
David Peaslee ◽  
Arthur Cheng ◽  
Theodore Gao ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Electrochemical Capacitors ◽  
Carbon Nanotube Composite

scholarly journals Synergistic effect of CB and GO/CNT hybrid fillers on the mechanical properties and fatigue behavior of NR composites

RSC Advances ◽  
2018 ◽  
Vol 8 (19) ◽  
pp. 10573-10581 ◽  
Author(s):  
Laiyun Wei ◽  
Xuan Fu ◽  
Mingchao Luo ◽  
Zhengtian Xie ◽  
Cheng Huang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Carbon Black ◽  
Synergistic Effect ◽  
Fatigue Behavior ◽  
Crack Growth Resistance ◽  
Hybrid Fillers ◽  
Superior Mechanical Properties ◽  
Heat Build Up

Graphene oxide (GO) and carbon nanotube (CNT) hybrid fillers were used to replace partial carbon black (CB), and GO/CNT/CB/NR composites were prepared with excellent crack growth resistance, low heat build-up and superior mechanical properties.

Surfactant-free synthesis of a nanoperforated graphene/nitrogen-doped carbon nanotube composite for supercapacitors

2017 ◽  
Vol 5 (43) ◽  
pp. 22607-22617 ◽  
Author(s):  
Yeon Jun Choi ◽  
Hyun-Kyung Kim ◽  
Suk-Woo Lee ◽  
Young Hwan Kim ◽  
Hee-Chang Youn ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Carbon Nanotube ◽  
Electrostatic Interaction ◽  
Carbon Gasification ◽  
Nitrogen Doped ◽  
Carbon Nanotube Composite ◽  
Nitrogen Doped Carbon

A nanoperforated graphene/carbon nanotube (PG/CNT) composite is fabricated by electrostatic interaction of graphene oxide (GO) and nitrogen-doped CNTs, and subsequent catalytic carbon gasification.

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