Self-assembly of a graphene oxide/MnFe2O4 motor by coupling shear force with capillarity for removal of toxic heavy metals

2018 ◽  
Vol 6 (42) ◽  
pp. 20861-20868 ◽  
Author(s):  
Xiyue Peng ◽  
Feng Gao ◽  
Jiaxin Zhao ◽  
Jielan Li ◽  
Jiangying Qu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Graphene Oxide ◽  
Self Assembly ◽  
Shear Force ◽  
Room Temperature ◽  
Toxic Heavy Metals ◽  
3D Graphene ◽  
Removal Of Heavy Metals

A 3D graphene oxide/MnFe2O4 motor is constructed via coupling shear force with capillarity at room temperature for removal of heavy metals.

Application of Functionalized Nanomaterials as Effective Adsorbents for the Removal of Heavy Metals from Wastewater: A Review

2020 ◽  
Vol 17 (1) ◽  
pp. 4-22
Author(s):  
Saifeldin M. Siddeeg ◽  
Mohamed A. Tahoon ◽  
Norah S. Alsaiari ◽  
Muhamad Shabbir ◽  
Faouzi B. Rebah
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Graphene Oxide ◽  
Engineered Nanomaterials ◽  
Complete Analysis ◽  
Toxic Heavy Metals ◽  
Metals Removal ◽  
Functionalized Nanomaterials ◽  
Metal Selectivity ◽  
Removal Of Heavy Metals

Background: Nanomaterials offer promising remediation techniques for water containing toxic pollutants especially heavy metals. Method: A complete analysis of the application of nano-adsorbents for heavy metals removal from water has been reviewed. The effect of their functionalization on the adsorption capacity, the reusability, and the surface area has also been discussed. Result: In particular, the focus was on the applications of graphene oxide, carbon, silica, titanium dioxide, and iron oxide for water treatment. Additionally, the effect of functional groups on heavy metal selectivity has been discussed as well. Conclusion: This article will provide environmental engineers and academicians with information related to the latest engineered nanomaterials employed for the treatment of wastewater containing toxic heavy metals.

Recent trends in the synthesis of graphene and graphene oxide based nanomaterials for removal of heavy metals — A review

2018 ◽  
Vol 66 ◽  
pp. 29-44 ◽  
Author(s):  
Jihn Yih Lim ◽  
N.M. Mubarak ◽  
E.C. Abdullah ◽  
Sabzoi Nizamuddin ◽  
Mohammad Khalid ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Graphene Oxide ◽  
Removal Of Heavy Metals ◽  
Recent Trends

Metal–organic framework derived 3D graphene decorated NaTi2(PO4)3 for fast Na-ion storage

Nanoscale ◽  
2019 ◽  
Vol 11 (15) ◽  
pp. 7347-7357 ◽  
Author(s):  
Lei Wang ◽  
Zhennan Huang ◽  
Bo Wang ◽  
Hao Luo ◽  
Meng Cheng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
The Self ◽  
3D Graphene ◽  
Ion Storage ◽  
Metal Organic ◽  
Organic Framework

Titanium-based metal–organic frameworks have been used as an in situ etching template for the self-assembly of graphene oxide to construct NaTi2(PO4)3-rGO composite.

scholarly journals Applicability of Moringa oleifera Lam. pie as an adsorbent for removal of heavy metals from waters

2013 ◽  
Vol 17 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Affonso C. Gonçalves Junior ◽  
Ana P. Meneghel ◽  
Fernanda Rubio ◽  
Leonardo Strey ◽  
Douglas C. Dragunski ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Moringa Oleifera ◽  
Low Cost ◽  
Previous Treatment ◽  
Toxic Heavy Metals ◽  
Removal Of Heavy Metals ◽  
Alternative Material ◽  
Cadmium Lead ◽  
Optimized Conditions ◽  
Moringa Oleifera Lam

This study evaluated the efficacy of moringa seeds (Moringa oleifera Lam.) as an adsorbent material for removing toxic heavy metals such as cadmium, lead, and chromium from contaminated solutions. The effect of the adsorbent mass was investigated at two pH conditions (5.0 and 7.0). The optimized conditions were 0.300 g of adsorbent at pH 5.0, used for the isotherms construction, and linearized according to Langmuir and Freundlich models. Results showed that cadmium adsorption was similar in both the models used. For lead, the Freundlich model had the best adjustment and chromium was better adjusted by the Langmuir model. It was concluded that the adsorbent was effective in the remediation of solutions containing cadmium, lead and chromium, thus, its use as sustainable alternative material is feasible, since it has low cost, does not need a previous treatment and it is a byproduct.

Fabrication of 3D Graphene and 3D Graphene Oxide Devices for Sensing VOCs

MRS Advances ◽  
2016 ◽  
Vol 1 (19) ◽  
pp. 1359-1364 ◽  
Author(s):  
So Matsuyama ◽  
Tomoaki Sugiyama ◽  
Toshiyuki Ikoma ◽  
Jeffrey S. Cross
Keyword(s):  
Graphene Oxide ◽  
Room Temperature ◽  
Gas Sensing ◽  
Electrical Current ◽  
Current Response ◽  
High Concentration ◽  
Human Breath ◽  
3D Graphene ◽  
Suitable Material ◽  
Volatile Organic

ABSTRACTDetection of volatile organic compounds (VOCs) emitted from cancerous tumor cells in exhaled human breath allows for early diagnosis of various types of cancers. 3D graphene with a large surface area is considered a suitable material for creating novel sensitive VOCs sensors. In this study, 3D graphene and 3D graphene oxide were synthesized from graphene oxide suspension, hydroquinone and formaldehyde by employing polymerization and reduction. The capability of VOC gas sensing was evaluated by measuring the electrical current response in flowing N2 gas over a range of concentrations of acetone or 1-butanol at room temperature. It was observed that the device current correlated well with the VOC concentration. The adsorption of acetone decreased the current, but the adsorption of 1-butanol increased the current during sensing. 3D graphene oxide device was more sensitive than 3D graphene device because of the high concentration of oxygen-containing functional groups on the surface. These results indicated that 3D graphene and 3D graphene oxide may be the suitable materials for VOCs sensing devices.

Sign in / Sign up

Export Citation Format

Share Document