scholarly journals Synthesis and Characterization of Low-Cost Activated Carbons for Pollutants Removal from Automotive Emissions

2018 ◽  
Vol 6 (5) ◽  
Author(s):  
Pedro Julio Villegas
Keyword(s):  
Activated Carbons ◽  
Low Cost ◽  
Synthesis And Characterization ◽  
Automotive Emissions ◽  
Pollutants Removal

Synthesis and characterization of hyperbranched poly (sulfone-amine) modified β-cyclodextrin

e-Polymers ◽  
2006 ◽  
Vol 6 (1) ◽  
Author(s):  
Liang Chen ◽  
Peng He ◽  
Zhifeng Jia ◽  
Xinyuan Zhu ◽  
Deyue Yan
Keyword(s):  
Drug Delivery ◽  
Low Cost ◽  
Food Additives ◽  
Synthesis And Characterization ◽  
Good Solubility ◽  
Low Viscosity ◽  
Hyperbranched Poly ◽  
Potential Applications ◽  
Inclusion Ability

AbstractAn economical strategy to prepare hyperbranched poly(sulfone-amine) modified β-cyclodextrins (HPSA-m-CDs) from natural β-cyclodextrin (β-CD) and other commercially available materials has been reported. The final product has many good properties of hyperbranched poly(sulfone-amine)s (good solubility, low viscosity etc.), while its inclusion ability can also be well kept. It is a feasible approach to prepare functionalized modified cyclodextrin at very low cost, and may have potential applications in the fields of catalysis, drug delivery, food additives, etc.

scholarly journals Removal of Ni (II) from Aqueous Solution by Adsorption onto Activated Carbon Prepared from Lapsi (Choerospondias axillaris) Seed Stone

2014 ◽  
Vol 9 (1) ◽  
pp. 166-174 ◽  
Author(s):  
Rajeshwar M. Shrestha ◽  
Margit Varga ◽  
Imre Varga ◽  
Amar P. Yadav ◽  
Bhadra P. Pokharel ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Activated Carbons ◽  
Low Cost ◽  
Chemical Characterization ◽  
Maximum Adsorption Capacity ◽  
Adsorption Data ◽  
Optimum Ph ◽  
Nickel Adsorption

Activated carbons were prepared from Lapsi seed stone by the treatment with H2SO4 and HNO3 for the removal of Ni (II) ions from aqueous solution. Two activated carbon have been prepared from Lapsi seed stones by treating with conc.H2SO4 and a mixture of H2SO4 and HNO3 in the ratio of 1:1 by weight for removal of Ni(II) ions. Chemical characterization of the resultant activated carbons was studied by Fourier Transform Infrared Spectroscopy and Boehm titration which revealed the presence of oxygen containing surface functional groups like carboxyl, lactones and phenols in the carbons. The optimum pH for nickel adsorption is found to be 5. The adsorption data were better fitted with the Langmuir equations than Freundlich adsorption equation to describe the equilibrium isotherms. The maximum adsorption capacity of Ni (II) on the resultant activated carbons was 28.25.8 mg g-1 with H2SO4 and 69.49 mg g-1 with a mixture of H2SO4 and HNO3. The waste material used in the preparation of the activated carbons is inexpensive and readily available. Hence the carbons prepared from Lapsi seed stones can act as potential low cost adsorbents for the removal of Ni (II) from water. DOI: http://dx.doi.org/10.3126/jie.v9i1.10680Journal of the Institute of Engineering, Vol. 9, No. 1, pp. 166–174

scholarly journals A Review on Synthesis and Characterization of Biomass-Derived Carbons for Adsorption of Emerging Contaminants from Water

2018 ◽  
Author(s):  
Jorge Bedia ◽  
Manuel Peñas-Garzón ◽  
Almudena Goméz-Avilés ◽  
Juan José Rodríguez ◽  
Carolina Belver
Keyword(s):  
Emerging Contaminants ◽  
Activated Carbons ◽  
Synthesis And Characterization ◽  
Different Types ◽  
Adsorption Processes

This review analyzes the synthesis and characterization of biomass-derived carbons for adsorption of emerging contaminants from water. The study begins with the definition and different types of emerging contaminants more often founded in water streams and the different technologies available for their removal including adsorption. It also describes the biomass sources that could be used for the synthesis of biochars and activated carbons. The characterization of the adsorbents and the different approaches that could be employed for the study of the adsorption processes are also detailed. Finally, the work reviews in detail some studies of the literature focused on the adsorption of emerging contaminants on biochars and activated carbons synthesized from biomass precursors.

scholarly journals A Review on the Synthesis and Characterization of Biomass-Derived Carbons for Adsorption of Emerging Contaminants from Water

2018 ◽  
Vol 4 (4) ◽  
pp. 63 ◽  
Author(s):  
Jorge Bedia ◽  
Manuel Peñas-Garzón ◽  
Almudena Gómez-Avilés ◽  
Juan Rodriguez ◽  
Carolina Belver
Keyword(s):  
Emerging Contaminants ◽  
Activated Carbons ◽  
Synthesis And Characterization ◽  
Different Types ◽  
Adsorption Processes

This review analyzes the preparation and characterization of biomass-derived carbons and their application as adsorbents of emerging contaminants from water. The study begins by identifying the different types of emerging contaminants more often found in water streams, including a brief reference to the available technologies for their removal. It also describes the biomass sources that could be used for the synthesis of biochars and activated carbons (AC). The characterization of the adsorbents and the different approaches that can be followed to learn about the adsorption processes are also detailed. Finally, the work reviews literature studies focused on the adsorption of emerging contaminants on biochars and activated carbons synthesized from biomass precursors.

ChemInform Abstract: Synthesis and Characterization of Cu(InxB1-x)Se2 Nanocrystals for Low-Cost Thin Film Photovoltaics.

ChemInform ◽  
2011 ◽  
Vol 42 (28) ◽  
pp. no-no
Author(s):  
Lin-Jer Chen ◽  
Jiunn-Der Liao ◽  
Yu-Ju Chuang ◽  
Yaw-Shyan Fu
Keyword(s):  
Thin Film ◽  
Low Cost ◽  
Synthesis And Characterization ◽  
Thin Film Photovoltaics
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