Fabrication & Characterization of Simple Structure Self-Assembled Graphene Oxide Based Heavy Metal Ion Sensor

2019 ◽  
pp. 1-10
Author(s):  
Khi Khim Beh ◽  
Asrulnizam Abd Manaf ◽  
Khi Poay Beh ◽  
Fong Kwong Yam ◽  
Hwee San Lim ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ion ◽  
Simple Structure ◽  
Heavy Metal Ion ◽  
Ion Sensor ◽  
Self Assembled

scholarly journals Synthesis, Characterization of a New Polyacrylic Acid Superabsorbent, Some Heavy Metal Ion Sorption, the Adsorption Isotherms, and Quantum Chemical Investigation

Materials ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 4390
Author(s):  
Sevil Savaskan Yilmaz ◽  
Nuri Yildirim ◽  
Murat Misir ◽  
Yasin Misirlioglu ◽  
Emre Celik
Keyword(s):  
Heavy Metal ◽  
Quantum Chemical ◽  
Metal Ion ◽  
Molecular Mechanic ◽  
Ion Concentration ◽  
Heavy Metal Ion ◽  
Competitive Sorption ◽  
Cross Linker ◽  
The Cross

Poly(acrylic acid/Kryptofix 23-Dimethacrylate) superabsorbent polymer [P (AA/Kry23-DM) SAP] was synthesized by solution polymerization to remove Co, Ni, Cu, Cd, Mn, Zn, Pb, Cr, and Fe ions in water and improve the quality of the water. Kry23-DM cross-linker (1,4,7,13,16-Pentaoxa-10,19 diazo cyclohexene icosane di methacrylate) was synthesized using Kry23 and methacryloyl chloride. The characterization of the molecules was done by FTIR, TGA, DSC, and SEM techniques. The effects of parameters such as pH, concentration, and the metal ion interaction on the heavy metal ions uptaking of SAP was investigated. It was observed that P (AA/Kry23-DM) SAP has maximum water absorption, and the absorption increases with the pH increase. Adsorption rates and sorption capacity, desorption ratios, competitive sorption (qcs), and distribution coefficient (log D) of P(AA/Kry23-DM) SAP were studied as a function of time and pH with the heavy metal ion concentration. Langmuir and Freundlich isotherms of the P (AA/Kry23-DM) SAP were investigated to verify the metal uptake. Molecular mechanic (MM2), Assisted Model Building with Energy Refinement (AMBER), and optimized potentials for liquid simulations (OPLS) methods. were used in quantum chemical calculations for the conformational analysis of the cross-linker and the SAP. ΔH0f calculations of the cross-linker and the superabsorbent were made using Austin Model 1(AM1) method.

Microfabricated heavy metal ion sensor

1995 ◽  
Vol 23 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Gregory T.A. Kovacs ◽  
Christopher W. Storment ◽  
Samuel P. Kounaves
Keyword(s):  
Heavy Metal ◽  
Metal Ion ◽  
Heavy Metal Ion ◽  
Ion Sensor

scholarly journals Characterization of a heavy metal ion transporter in the lysosomal membrane

FEBS Letters ◽  
1998 ◽  
Vol 436 (2) ◽  
pp. 223-227 ◽  
Author(s):  
Adrie C Havelaar ◽  
Izaäk L de Gast ◽  
Saskia Snijders ◽  
Cecile E.M.T Beerens ◽  
Grazia M.S Mancini ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ion ◽  
Lysosomal Membrane ◽  
Heavy Metal Ion ◽  
Ion Transporter

Heavy-metal ion sensor using chitosan capped ZnS quantum dots

2016 ◽  
Vol 226 ◽  
pp. 534-539 ◽  
Author(s):  
Rashi Borgohain ◽  
Prabin Kumar Boruah ◽  
Sunandan Baruah
Keyword(s):  
Heavy Metal ◽  
Quantum Dots ◽  
Metal Ion ◽  
Heavy Metal Ion ◽  
Ion Sensor

Few-Layered Graphene Oxide Nanosheets As Superior Sorbents for Heavy Metal Ion Pollution Management

2011 ◽  
Vol 45 (24) ◽  
pp. 10454-10462 ◽  
Author(s):  
Guixia Zhao ◽  
Jiaxing Li ◽  
Xuemei Ren ◽  
Changlun Chen ◽  
Xiangke Wang
Keyword(s):  
Heavy Metal ◽  
Graphene Oxide ◽  
Metal Ion ◽  
Heavy Metal Ion ◽  
Graphene Oxide Nanosheets ◽  
Pollution Management
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