scholarly journals Evaluation of the colloidal stability and adsorption performance of reduced graphene oxide–elemental silver/magnetite nanohybrids for selected toxic heavy metals in aqueous solutions

2019 ◽  
Vol 471 ◽  
pp. 8-17 ◽  
Author(s):  
Chang Min Park ◽  
Dengjun Wang ◽  
Jonghun Han ◽  
Jiyong Heo ◽  
Chunming Su
Keyword(s):  
Heavy Metals ◽  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Reduced Graphene Oxide ◽  
Colloidal Stability ◽  
Toxic Heavy Metals ◽  
Adsorption Performance ◽  
Elemental Silver ◽  
Reduced Graphene

scholarly journals Removal of Sulfadiazine Using 3D Interconnected Petal-Like Magnetic Reduced Graphene Oxide (MrGO) Nanocomposites

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 1933
Author(s):  
Jie Zhong ◽  
Yong Feng ◽  
Jin-Ling Li ◽  
Bin Yang ◽  
Guang-Guo Ying
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Removal Rate ◽  
Physical Adsorption ◽  
Polluted Water ◽  
Adsorption Performance ◽  
Economic Methods ◽  
Reduced Graphene ◽  
Pure Fe3o4 ◽  
Magnetic Reduced Graphene Oxide

Adsorption has been regarded as one of the most efficient and economic methods for the removal of antibiotics from aqueous solutions. In this work, different graphene-based magnetic nanocomposites using a modified solvothermal method were synthesized and employed to remove sulfadiazine (SDZ) from water. The adsorption capacity of the optimal magnetic reduced graphene oxide (MrGO) was approximately 3.24 times that of pure Fe3O4. After five repeated adsorption cycles, the removal rate of SDZ (100 μg/L) by MrGO nanocomposites was still around 89.3%, which was only about a 3% decrease compared to that in the first cycle. Mechanism investigations showed that both chemical and physical adsorption contributed to the removal of SDZ. The excellent adsorption performance and recyclability of MrGO nanocomposites could be attributed to their wonderful 3D interconnected petal-like structures. The MrGO with SDZ could be easily recollected by magnetic separation. The MrGO also exhibited excellent adsorption performance in the purification of real polluted water.

scholarly journals Facile synthesis of MoS2/reduced graphene oxide composites for efficient removal of Cr(vi) from aqueous solutions

RSC Advances ◽  
2017 ◽  
Vol 7 (39) ◽  
pp. 24149-24156 ◽  
Author(s):  
Xiaolu Jiang ◽  
Hanjin Luo ◽  
Yuwei Yin ◽  
Weijia Zhou
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Aqueous Solutions ◽  
Reduced Graphene Oxide ◽  
High Toxicity ◽  
Efficient Removal ◽  
Facile Synthesis ◽  
Reduced Graphene ◽  
Metal Contaminate ◽  
Oxide Composites

Cr(vi) as a common heavy metal contaminate has attracted much attention for its high toxicity and bioaccumulation.

Colloidal stability of reduced graphene oxide materials prepared using different reducing agents

2016 ◽  
Vol 3 (5) ◽  
pp. 1062-1071 ◽  
Author(s):  
Yu Qi ◽  
Tianjiao Xia ◽  
Yao Li ◽  
Lin Duan ◽  
Wei Chen
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Colloidal Stability ◽  
Reducing Agents ◽  
Oxide Materials ◽  
Degree Of Reduction ◽  
Reduced Graphene ◽  
Aggregation Tendency

The aggregation tendency of GO/RGO correlates poorly with the degree of reduction but strongly with the types and concentrations of surface O functionalities.

Poly(4-styrenesulfonic acid-co-maleic acid)-sodium-modified magnetic reduced graphene oxide for enhanced adsorption performance toward cationic dyes

RSC Advances ◽  
2015 ◽  
Vol 5 (106) ◽  
pp. 87030-87042 ◽  
Author(s):  
Yu-Bei Song ◽  
Xiao-Dong Song ◽  
Chang-Jing Cheng ◽  
Zhi-Gang Zhao
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Maleic Acid ◽  
Cationic Dyes ◽  
Adsorption Performance ◽  
Reduced Graphene ◽  
Enhanced Adsorption ◽  
Magnetic Reduced Graphene Oxide

PSSMA-modified magnetic reduced graphene oxide nanocomposites (PSSMA/M-rGO) were prepared and used for enhanced adsorption of cationic dyes.

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