Graphene based nanoassembly for simultaneous detection and degradation of harmful organic contaminants from aqueous solution

RSC Advances ◽  
2016 ◽  
Vol 6 (41) ◽  
pp. 34342-34349 ◽  
Author(s):  
R. Ajay Rakkesh ◽  
D. Durgalakshmi ◽  
S. Balakumar
Keyword(s):  
Aqueous Solution ◽  
Organic Contaminants ◽  
Simultaneous Detection ◽  
Hazardous Chemicals

Graphene based nanoassemblies that can simultaneously detect and degrade harmful organic contaminants from water are important for conquering the risk of hazardous chemicals.

Removal of Organic Pollutants in Solution by Bamboo Charcoal

2013 ◽  
Vol 699 ◽  
pp. 554-556 ◽  
Author(s):  
Zi Lin Meng ◽  
Yi He Zhang ◽  
Qi An ◽  
Feng Zhu Lv ◽  
Qian Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Kinetic Model ◽  
Adsorption Capacity ◽  
Surface Area ◽  
Organic Pollutants ◽  
Organic Contaminants ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Bamboo Charcoal ◽  
Key Factors

Bamboo charcoal (BC) as an environmentally friendly and low-cost material receives widespread attention. Recently, much attention has been focused on the use of BC as adsorbent to treat wastewater. This paper provides an overview of the adsorption of organic contaminants in solution by using BC. The sorption behaviors of BC with various organic pollutants, and the kinetic model adopted to explain the adsorption rate of organic pollutants from aqueous solution were also reviewed. The adsorption capacity, the isotherm model, and several key factors such as modification, surface area, are discussed in this paper. Possible improvement of BC to treat organic contaminants in aqueous solution is also proposed.

Progress and perspectives for the use of pillared clays as adsorbents for organic compounds in aqueous solution

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yaneth Cardona ◽  
Miguel Angel Vicente ◽  
Sophia A. Korili ◽  
Antonio Gil
Keyword(s):  
Water Pollution ◽  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Surface Properties ◽  
Organic Compounds ◽  
Organic Contaminants ◽  
Adsorption Behavior ◽  
General Overview ◽  
The World ◽  
Basic Understanding

AbstractThe world is faced with several problems as regards water pollution. This is due to several factors, including the discharge of effluents into the environment with no prior treatment. This wastewater, therefore, contains significant levels of pollutants, including numerous toxic organic contaminants and others that are similarly undesirable. Several studies have attempted to find ways of removing wastewater contaminants using pillared interlayered clays (PILC) as adsorbents. In this work, we present a summary of those studies that have used PILC as adsorbents for the removal of organic compounds from aqueous solutions while simultaneously illustrating their potential for this purpose. A general overview is provided so that the reader can acquire a basic understanding of the PILC and their modified counterparts that have been used, and some of the characteristics that can directly affect their adsorption behavior, especially their textural and surface properties.

scholarly journals Investigation of sorption of 2,4-dichlorophenol on special hungarian oil shale

2018 ◽  
Vol 12 (1) ◽  
pp. 20-29
Author(s):  
Rauch Renáta ◽  
Rita Földényi
Keyword(s):  
Aqueous Solution ◽  
Adsorption Isotherm ◽  
Organic Contaminants ◽  
Oil Shale ◽  
Natural Waters ◽  
Adsorption Properties ◽  
Environmental Technology ◽  
Equilibrium Data ◽  
Bacterial Decomposition ◽  
Chemical Regeneration

The development of efficient methods for the removal of different type of organic contaminates of natural waters is an ever challenging task in the modern environmental technology. The paper reports the physical characterization and adsorption properties of a Hungarian oil shale. Static equilibrium experiments were carried out to study the adsorption of 2,4-dichlorophenol from aqueous solution. The obtained equilibrium data were satisfactorily fitted by a multistep adsorption isotherm within the concentration range of 0 to 100 mg/l. According to our laboratory scale experiments the studied adsorbent immobilizes the contaminants more efficiently than a number of other adsorbents applied in different remediation technologies. More than 90 % of the added 2,4-dichlorophenol was adsorbed by the studied oil shale. The contaminants are bound strongly by the sorbent therefore they cannot be washed out by the groundwater flow which, in turn, favors to the natural bacterial decomposition process of the polluting compound. This is considered as a significant advantage of the adsorbent because no chemical regeneration of the inexpensive oil shale is required. The reported results indicate that the oil shale can be used efficiently for the treatment of natural waters to remove their organic contaminants.

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