scholarly journals Sorption of Phosphorus, Nickel, and Lead from Aqueous Solution Using Manganese Oxide-Coated Materials

2020 ◽  
Author(s):  
Nesrine Boujelben
Keyword(s):  
Aqueous Solution ◽  
Manganese Oxide ◽  
Coated Materials

scholarly journals Adsorption of Mn2+ from Aqueous Solution Using Manganese Oxide-Coated Hollow Polymethylmethacrylate Microspheres (MHPM)

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Dhiraj Dutta ◽  
Jyoti Prasad Borah ◽  
Amrit Puzari
Keyword(s):  
Aqueous Solution ◽  
Manganese Oxide ◽  
Adsorption Capacity ◽  
High Surface ◽  
High Surface Area ◽  
Freundlich Isotherm ◽  
Ion Concentration ◽  
Isotherm Models ◽  
Maximum Adsorption Capacity ◽  
Coated Sand

Results of investigation on adsorption of Mn2+ from aqueous solution by manganese oxide-coated hollow polymethylmethacrylate microspheres (MHPM) are reported here. This is the first report on Mn-coated hollow polymer as a substitute for widely used materials like green sand or MN-coated sand. Hollow polymethylmethacrylate (HPM) was prepared by using a literature procedure. Manganese oxide (MnO) was coated on the surface of HPM (MHPM) by using the electroless plating technique. The HPM and MHPM were characterized by using optical microscopy (OM), scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). Optical and scanning micrographs were used to monitor the surface properties of the coated layer which revealed the presence of MnO on the surface of HPM. TGA showed the presence of 4-5% of MnO in MHPM. Adsorption isotherm studies were carried out as a function of pH, initial ion concentration, and contact time, to determine the adsorption efficiency for removal of Mn2+ from contaminated water by the synthesized MHPM. The isotherm results showed that the maximum adsorption capacity of MnO-coated HPM to remove manganese contaminants from water is 8.373 mg/g. The obtained R 2 values of Langmuir isotherm and Freundlich isotherm models were 1 and 0.87, respectively. Therefore, R 2 magnitude confirmed that the Langmuir model is best suited for Mn2+ adsorption by a monolayer of MHPM adsorbent. The material developed shows higher adsorption capacity even at a higher concentration of solute ions, which is not usually observed with similar materials of this kind. Overall findings indicate that MHPM is a very potential lightweight adsorbent for removal of Mn2+ from the aqueous solution because of its low density and high surface area.

Mixed-valence mesoporous manganese oxide spheres from waste manganese nitrate aqueous solution

2019 ◽  
Vol 284 ◽  
pp. 353-359 ◽  
Author(s):  
Andrzej Sienkiewicz ◽  
Agnieszka Kierys ◽  
Marta Grochowicz ◽  
Aldona Nowicka ◽  
Jacek Goworek
Keyword(s):  
Aqueous Solution ◽  
Manganese Oxide ◽  
Mixed Valence ◽  
Manganese Nitrate

scholarly journals Removal of Methylene Blue from Aqueous Solution Using a Polarizable Nanolayered Manganese Oxide Film

2009 ◽  
Vol 25 (2) ◽  
pp. 229-233 ◽  
Author(s):  
Masaharu NAKAYAMA ◽  
Shinya NAKAMOTO ◽  
Chihiro IIDA ◽  
Makoto YOSHIMOTO
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Oxide Film ◽  
Manganese Oxide

Copper(II) and lead(II) removal from aqueous solution in fixed-bed columns by manganese oxide coated zeolite

2006 ◽  
Vol 137 (2) ◽  
pp. 934-942 ◽  
Author(s):  
Runping Han ◽  
Weihua Zou ◽  
Hongkui Li ◽  
Yanhu Li ◽  
Jie Shi
Keyword(s):  
Aqueous Solution ◽  
Manganese Oxide ◽  
Fixed Bed

Exfoliation reaction of birnessite-type manganese oxide by a host–guest electrostatic repulsion in aqueous solution

2008 ◽  
Vol 10 (2) ◽  
pp. 141-147 ◽  
Author(s):  
Biehou Ma ◽  
Wenyan Hou ◽  
Yinfeng Han ◽  
Runguang Sun ◽  
Zong-Huai Liu
Keyword(s):  
Aqueous Solution ◽  
Manganese Oxide ◽  
Electrostatic Repulsion

Novel iron manganese oxide modified mulberry biochar for the adsorption of phosphorus in aqueous solution

2020 ◽  
Vol 189 ◽  
pp. 357-366 ◽  
Author(s):  
Meina Liang ◽  
Liling Yan ◽  
Dunqiu Wang ◽  
Xu Cheng ◽  
Zhenliang Deng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Manganese Oxide ◽  
Iron Manganese

Graphene-Polymer//Graphene-Manganese Oxide Nanocomposites-Based Asymmetric High Energy Supercapacitor with 1.8 V Cell Voltage in Aqueous Solution

2017 ◽  
Vol 2 (33) ◽  
pp. 10754-10761 ◽  
Author(s):  
Balasubramanian Amutha ◽  
Kaipannan Subramani ◽  
Pula Nagesh Reddy ◽  
Marappan Sathish
Keyword(s):  
Aqueous Solution ◽  
Manganese Oxide ◽  
Cell Voltage ◽  
High Energy
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