Arsenic Removal Using Polymer-Supported Hydrated Iron(III) Oxide Nanoparticles:  Role of Donnan Membrane Effect†

2005 ◽  
Vol 39 (17) ◽  
pp. 6508-6515 ◽  
Author(s):  
Luis Cumbal ◽  
Arup K. SenGupta
Keyword(s):  
Arsenic Removal ◽  
Oxide Nanoparticles ◽  
Membrane Effect ◽  
Polymer Supported

Preparation of polymer-supported hydrated ferric oxide based on Donnan membrane effect and its application for arsenic removal

2008 ◽  
Vol 51 (4) ◽  
pp. 379-385 ◽  
Author(s):  
QingJian Zhang ◽  
BingCai Pan ◽  
XinQing Chen ◽  
WeiMing Zhang ◽  
BingJun Pan ◽  
...  
Keyword(s):  
Ferric Oxide ◽  
Arsenic Removal ◽  
Hydrated Ferric Oxide ◽  
Membrane Effect ◽  
Polymer Supported

scholarly journals Removal of Arsenic (III) Present in Ground Water of Bangladesh with Polymer Supported Hydrated Fe(III) Oxides

2015 ◽  
Vol 63 (2) ◽  
pp. 85-89
Author(s):  
Mohammad Arifur Rahman ◽  
Evanta Kabir ◽  
AM Shafiqul Alam
Keyword(s):  
Efficient Method ◽  
Arsenic Removal ◽  
Specific Interaction ◽  
Contaminated Groundwater ◽  
Nacl Solution ◽  
Preferential Adsorption ◽  
Membrane Effect ◽  
Polymer Supported ◽  
Removal Of Arsenic ◽  
Optimized Conditions

In the present study, a technique to remove arsenic has been developed with a polymer-supported hydrated Fe(III) oxide (HFO) by using a strongly basic anionic exchanger IRA-420 as the host material and FeCl3-HCl-NaCl solution as the reaction environment. The optimized conditions were applied to a sample collected from Sonargaon, Dhaka. The removal efficiency of this method was more than 80%, which indicates that this method can be used as an efficient method for arsenic removal in Bangladesh. IRA-420-HFO exhibits more preferential adsorption of arsenic ions which is attributed to the Donnan membrane effect exerted by the host resin (IRA-420) as well as to the loaded HFO particles for specific interaction toward arsenic (III) ions. All the results indicated that HFO polymer derivative is an attractive adsorbent for efficient arsenic (III) removal from contaminated groundwater of Bangladesh.Dhaka Univ. J. Sci. 63(2):85-89, 2015 (July)

scholarly journals The inhibitory role of synthesized Nickel oxide nanoparticles against Hep-G2, MCF-7, and HT-29 cell lines: the inhibitory role of NiO NPs against Hep-G2, MCF-7, and HT-29 cell lines

2021 ◽  
Vol 14 (3) ◽  
pp. 443-453
Author(s):  
Mohammad Amin Jadidi Kouhbanani ◽  
Yasin Sadeghipour ◽  
Mina Sarani ◽  
Erfan Sefidgar ◽  
Saba Ilkhani ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Cell Lines ◽  
Oxide Nanoparticles ◽  
Hep G2 ◽  
Nickel Oxide Nanoparticles ◽  
Inhibitory Role ◽  
Nio Nps ◽  
Ht 29 ◽  
Mcf 7

scholarly journals Role of hydration and micellar shielding in tuning the structure of single crystalline iron oxide nanoparticles for designer applications

Nano Select ◽  
2021 ◽  
Author(s):  
Ramis Arbi ◽  
Amr Ibrahim ◽  
Liora Goldring‐Vandergeest ◽  
Kunyu Liang ◽  
Greg Hanta ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Single Crystalline

scholarly journals Arsenic Removal by Advanced Electrocoagulation Processes: The Role of Oxidants Generated and Kinetic Modeling

Catalysts ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 928
Author(s):  
Micah Flor V. Montefalcon ◽  
Meliton R. Chiong ◽  
Augustus C. Resurreccion ◽  
Sergi Garcia-Segura ◽  
Joey D. Ocon
Keyword(s):  
Kinetic Modeling ◽  
Arsenic Removal ◽  
Fold Increase ◽  
Electrochemical Treatment ◽  
Promising Alternative ◽  
Iron Electrodes ◽  
Removal Capacity ◽  
Naturally Occurring ◽  
Treatment Technologies

Arsenic (As) is a naturally occurring element in the environment that poses significant risks to human health. Several treatment technologies have been successfully used in the treatment of As-contaminated waters. However, limited literature has explored advanced electrocoagulation (EC) processes for As removal. The present study evaluates the As removal performance of electrocoagulation, electrochemical peroxidation (ECP), and photo-assisted electrochemical peroxidation (PECP) technologies at circumneutral pH using electroactive iron electrodes. The influence of As speciation and the role of oxidants in As removal were investigated. We have identified the ECP process to be a promising alternative for the conventional EC with around 4-fold increase in arsenic removal capacity at a competitive cost of 0.0060 $/m3. Results also indicated that the rate of As(III) oxidation at the outset of electrochemical treatment dictates the extent of As removal. Both ECP and PECP processes reached greater than 96% As(III) conversion at 1 C/L and achieved 86% and 96% As removal at 5 C/L, respectively. Finally, the mechanism of As(III) oxidation was evaluated, and results showed that Fe(IV) is the intermediate oxidant generated in advanced EC processes, and the contribution of •OH brought by UV irradiation is insignificant.

The role of SO42− surface distribution in arsenic removal by iron oxy-hydroxides

2014 ◽  
Vol 213 ◽  
pp. 145-151 ◽  
Author(s):  
S. Tresintsi ◽  
K. Simeonidis ◽  
N. Pliatsikas ◽  
G. Vourlias ◽  
P. Patsalas ◽  
...  
Keyword(s):  
Arsenic Removal ◽  
Surface Distribution
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