Introductory of Excel Spreadsheet for comparative analysis of linearized expressions of Langmuir isotherm for methylene blue onto rice husk

2019 ◽  
Vol 9 (1) ◽  
pp. p8587
Author(s):  
Yu-Ting Huang ◽  
Li-Chiun Lee ◽  
Ming-Cheng Shih ◽  
Wei-Ting Huang
Keyword(s):  
Methylene Blue ◽  
Comparative Analysis ◽  
Rice Husk ◽  
Langmuir Isotherm ◽  
Excel Spreadsheet

scholarly journals Investigation of Seeds and Peels of Citrullus colocynthis as Efficient Natural Adsorbent for Methylene Blue Dye

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1279
Author(s):  
Wafa Mohammed Alghamdi ◽  
Ines El Mannoubi
Keyword(s):  
Methylene Blue ◽  
Kinetic Model ◽  
Langmuir Isotherm ◽  
Order Kinetic ◽  
Citrullus Colocynthis ◽  
Natural Adsorbent ◽  
Spontaneous Process ◽  
Equilibrium Data ◽  
Order Kinetic Model ◽  
Mb Adsorption

Natural adsorbents as low-cost materials have been proved efficient for water remediation and have significant capacity for the removal of certain chemicals from wastewater. The present investigation aimed to use Citrullus colocynthis seeds (CCSs) and peels (CCPs) as an efficient natural adsorbent for methylene blue (MB) dye in an aqueous solution. The examined biosorbents were characterized using surface area analyzer (BET), scanning electron microscope (SEM), thermogravimetric analyzer (TGA) and Fourier transform infra-red (FT-IR) spectroscopy. Batch adsorption experiments were conducted to optimize the main factors influencing the biosorption process. The equilibrium data for the adsorption of MB by CCSs were best described by the Langmuir isotherm followed by the Freundlich adsorption isotherms, while the equilibrium data for MB adsorption by CCPs were well fitted by the Langmuir isotherm followed by the Temkin isotherm. Under optimum conditions, the maximum biosorption capacity and removal efficiency were 18.832 mg g−1 and 98.00% for MB-CCSs and 4.480 mg g−1 and 91.43% for MB-CCPs. Kinetic studies revealed that MB adsorption onto CCSs obeys pseudo-first order kinetic model (K1 = 0.0274 min−1), while MB adsorption onto CCPs follows the pseudo-second order kinetic model (K2 = 0.0177 g mg−1 min−1). Thermodynamic studies revealed that the MB biosorption by CCSs was endothermic and a spontaneous process in nature associated with a rise in randomness, but the MB adsorption by CCPs was exothermic and a spontaneous process only at room temperature with a decline in disorder. Based on the obtained results, CCSs and CCPSs can be utilized as efficient, natural biosorbents, and CCSs is promising since it showed the highest removal percentage and adsorption capacity of MB dye.

Empirical Equilibrium Study on Rice Husk and Eggshells as Low Cost Bioadsorbent for the Methylene Blue Removal

2014 ◽  
Vol 699 ◽  
pp. 221-226
Author(s):  
Nurul Hanim Razak ◽  
Md. Razali Ayob ◽  
M.A.M. Zainin ◽  
M.Z. Hilwa
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Low Cost ◽  
Agricultural Waste ◽  
Textile Wastewater ◽  
Blue Dye ◽  
Rice Husks ◽  
Equilibrium Study ◽  
Porosity Characterization

Eggshells and rice husk, two types of notable agricultural waste were used as bioadsorbent to remove Methylene Blue dye (MBD) in aqueous solution. This study was to investigate the performance of these two bioadsorbents in removing MBD. The removal percentage, adsorption capacity, and porosity characterization were examined. The method applied was a physical filtration. UV-VIS Spectrophotometer was used to determine the efficiency of the bioadsorbents in MBD adsorption. The highest removal percentage at the most concentrated MBD were 51% and 98% for eggshells and rice husks respectively. Meanwhile the characterization of rice husks pore size and volume proves that higher adsorptivity towards dye compares to eggshells porosity. It was concluded that the eggshells and rice husks bioadsorbents was successful to treat industrial textile wastewater with rice husks as the most efficient bioadsorbent in removing MBD.

scholarly journals Microwave Enhanced Synthesis of Sulfonated Chitosan-montmorillonite for Effective Removal of Methylene Blue

2021 ◽  
Author(s):  
Nur Shazwani Abdul Mubarak ◽  
N.N. Bahrudin ◽  
Ali H. Jawad ◽  
B.H. Hameed ◽  
Sumiyyah Sabar
Keyword(s):  
Methylene Blue ◽  
Langmuir Isotherm ◽  
Cationic Dyes ◽  
Isotherm Model ◽  
Batch Adsorption ◽  
Sulfonate Group ◽  
Order Kinetic ◽  
Effective Removal ◽  
Langmuir Isotherm Model ◽  
Mb Adsorption

Abstract In this work, sulfonated chitosan montmorillonite composite (S-CS-MT) beads were synthesized using a microwave irradiation method designed to have a better saving-time procedure. The potency of S-CS-MT as an adsorbent was assessed for the removal of cationic dyes such as methylene blue (MB) from aqueous solution. The batch adsorption experiments indicated that MB adsorption onto S-CS-MT follows the Pseudo-second-order kinetic and Langmuir isotherm model. The maximum extent obtained from the Langmuir isotherm model for MB adsorption was 188.2 mg g− 1 at 303 K. The thermodynamic study indicated that the adsorption reaction is favorable and spontaneous. These findings indicated that montmorillonite chitosan grafted with the sulfonate group has the ability and efficacy as biohybrid adsorbent for the adsorption of cationic dyes.

scholarly journals Rice Husk Bio-Chars as Adsorbent for Methylene Blue and Ethinylestradiol from Water

2020 ◽  
Vol 8 (3) ◽  
pp. 275-287
Author(s):  
Jonathan Lacuesta ◽  
Iris Beatriz Vega Erramuspe ◽  
Liji Sobhana ◽  
Dennis Kronlund ◽  
Jouko Peltonen ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Rice Husk

scholarly journals Biocomposite of Hydroxyapatite from Chicken Egg Shells and Biochar from Rice Husk As an Adsorbent for Copper Ion and Methylene Blue

2020 ◽  
Vol 29 (1) ◽  
pp. 1
Author(s):  
Hendri Setiawan ◽  
Umi F. Anindi ◽  
Dedek Y Pulungan ◽  
Nur Akbar ◽  
Atiek R. Noviyanti ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Rice Husk ◽  
Copper Ion ◽  
Chicken Egg ◽  
Egg Shells

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
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