scholarly journals Simultaneous Methylene Blue Adsorption and pH Neutralization of Contaminated Water by Rice Husk Ash

ACS Omega ◽  
2021 ◽  
Author(s):  
Teruhisa Hongo ◽  
Michiru Moriura ◽  
Yuji Hatada ◽  
Hironobu Abiko
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Contaminated Water ◽  
Methylene Blue Adsorption ◽  
Ph Neutralization

Methylene Blue Adsorption on Chitosan-g-Poly(Acrylic Acid)/Rice Husk Ash Superabsorbent Composite: Kinetics, Equilibrium, and Thermodynamics

2016 ◽  
Vol 228 (1) ◽  
Author(s):  
Marcelo G. Vaz ◽  
Antonio G. B. Pereira ◽  
André R. Fajardo ◽  
Antônio C. N. Azevedo ◽  
Francisco H. A. Rodrigues
Keyword(s):  
Methylene Blue ◽  
Acrylic Acid ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Methylene Blue Adsorption ◽  
Superabsorbent Composite ◽  
Poly Acrylic Acid

TiO 2 -zeolite photocatalysts made of metakaolin and rice husk ash for removal of methylene blue dye

2017 ◽  
Vol 313 ◽  
pp. 417-426 ◽  
Author(s):  
Naruemon Setthaya ◽  
Prinya Chindaprasirt ◽  
Shu Yin ◽  
Kedsarin Pimraksa
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Blue Dye ◽  
Methylene Blue Dye

scholarly journals Synthesis of zeolite L using rice husk ash silica for adsorption of methylene blue: kinetic and adsorption isotherm

2018 ◽  
Vol 197 ◽  
pp. 05002 ◽  
Author(s):  
Citra Deliana Dewi Sundari ◽  
Soni Setiadji ◽  
Yusuf Rohmatullah ◽  
Sanusi Sanusi ◽  
Denia Febby Nurbaeti ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Adsorption Process ◽  
Rice Husk Ash ◽  
Freundlich Isotherm ◽  
Particle Morphology ◽  
Absorption Capacity ◽  
Molar Ratio ◽  
Blue Dye ◽  
Zeolite L

Rice husk has a high silica content, so it can be utilized as silica source for zeolite synthesis. In this research, synthesis of zeolite L has been done using silica from rice husk ash without organic template. The synthesized zeolite L is then used as an adsorbent to adsorb methylene blue dye. The steps of zeolite L synthesis include: silica extraction from rice husk ash using NaOH and zeolite L synthesis using hydrothermal method with molar ratio 10 SiO2: Al2O3: 4 K2O: 100 H2O at 170°C for 24 hours. The resulting Zeolite L was then characterized by XRD and SEM. The absorption capacity of methylene blue solution by zeolite L was observed experimentally through the effect of pH of the solution, contact time, and initial concentration of the solution, then determining the isotherm and its absorption kinetics. From XRD and SEM results of zeolite L sample, it is shown that zeolite L has been formed and its particle morphology is a hollow cylinder with cylinder diameter of 0.049 - 0.123 μm. The adsorption process refers to the Freundlich isotherm model which provides the highest correlation coefficient. The methylene blue adsorption process by zeolite L follows pseudo second-order kinetics.

Methylene blue adsorption on magnetic alginate/rice husk bio-composite

2020 ◽  
Vol 154 ◽  
pp. 104-113 ◽  
Author(s):  
Erol Alver ◽  
Ayşegül Ülkü Metin ◽  
Francois Brouers
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Methylene Blue Adsorption

scholarly journals Rice Husk-Derived High Surface Area Nanoporous Carbon Materials with Excellent Iodine and Methylene Blue Adsorption Properties

2019 ◽  
Vol 5 (1) ◽  
pp. 10 ◽  
Author(s):  
Lok Shrestha ◽  
Mamata Thapa ◽  
Rekha Shrestha ◽  
Subrata Maji ◽  
Raja Pradhananga ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Surface Area ◽  
Rice Husk ◽  
Carbon Materials ◽  
High Surface ◽  
High Surface Area ◽  
Nanoporous Carbon ◽  
Adsorption Properties ◽  
Methylene Blue Adsorption ◽  
Nanoporous Carbon Materials

Iodine and methylene blue adsorption properties of the high surface area nanoporous carbon materials derived from agro-waste and rice husk is reported. Rice husk was pre-carbonized at 300 °C in air followed by leaching out the silica nanoparticles by extraction with sodium hydroxide solution. The silica-free rice husk char was mixed with chemical activating agents sodium hydroxide (NaOH), zinc chloride (ZnCl2), and potassium hydroxide (KOH) separately at a mixing ratio of 1:1 (wt%) and carbonized at 900 °C under a constant flow of nitrogen. The prepared carbon materials were characterized by scanning electron microscopy (SEM), Fourier transformed-infrared spectroscopy (FT-IR), powder X-ray diffraction (pXRD), and Raman scattering. Due to the presence of bimodal micro- and mesopore structures, KOH activated samples showed high specific surface area ca. 2342 m2/g and large pore volume ca. 2.94 cm3/g. Oxygenated surface functional groups (hydroxyl, carbonyl, and carboxyl) were commonly observed in all of the samples and were essentially non-crystalline porous particle size of different sizes (<200 μm). Adsorption study revealed that KOH activated samples could be excellent material for the iodine and methylene blue adsorption from aqueous phase. Iodine and methylene blue number were ca. 1726 mg/g and 608 mg/g, respectively. The observed excellent iodine and methylene blue adsorption properties can be attributed to the well-developed micro- and mesopore structure in the carbon material. This study demonstrates that the agricultural waste, rice husk, and derived nanoporous carbon materials would be excellent adsorbent materials in water purifications.

Removal of methylene blue from aqueous waste using rice husk and rice husk ash

Desalination ◽  
2010 ◽  
Vol 259 (1-3) ◽  
pp. 249-257 ◽  
Author(s):  
Pankaj Sharma ◽  
Ramnit Kaur ◽  
Chinnappan Baskar ◽  
Wook-Jin Chung
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Aqueous Waste

Fixed-bed adsorption of methylene blue by rice husk ash and rice husk/CoFe2O4nanocomposite

2015 ◽  
Vol 57 (27) ◽  
pp. 12793-12803 ◽  
Author(s):  
Kang-Kang Yan ◽  
Jiao Huang ◽  
Xue-Gang Chen ◽  
Shu-Ting Liu ◽  
Ao-Bo Zhang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Fixed Bed ◽  
Fixed Bed Adsorption
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