Surface modified montmorillonite with cationic surfactants: Preparation, characterization, and dye adsorption from aqueous solution

2019 ◽  
Vol 7 (4) ◽  
pp. 103243 ◽  
Author(s):  
Niyaz Mohammad Mahmoodi ◽  
Ali Taghizadeh ◽  
Mohsen Taghizadeh ◽  
Mohammd AZimi Shahali Baglou
Chemosphere ◽  
2021 ◽  
pp. 130311
Author(s):  
Sabarathinam Shanmugam ◽  
Kumaravel Karthik ◽  
Udayakumar Veerabagu ◽  
Anjana Hari ◽  
Krishnaswamy Swaminathan ◽  
...  

2009 ◽  
Vol 26 (6) ◽  
pp. 1748-1753 ◽  
Author(s):  
Sang-Hoon Byeon ◽  
Dhamodaran Kavitha ◽  
Kanagasabai Ponvel ◽  
Kyung-min Kim ◽  
Chang-Ha Lee

2013 ◽  
Vol 66 ◽  
pp. 1-8 ◽  
Author(s):  
Bożenna Różycka-Roszak ◽  
Edyta Woźniak ◽  
Paweł Misiak ◽  
Renata Frąckowiak ◽  
Kazimiera A. Wilk

2021 ◽  
Vol 10 (1) ◽  
pp. 59-66
Author(s):  
Son Le Lam ◽  
Phu Nguyen Vinh ◽  
Hieu Le Trung ◽  
Tan Le Thua ◽  
Nhan Dang Thi Thanh ◽  
...  

Glucomannan/graphene oxide (GM/GO) hydrogel was synthesized by using calcium hydroxide as the crosslinker. The synthesized material was characterized by using IR, XRD, SEM, EDX and RAMAN technology. The composite hydrogel was used for removal of organic dyes from aqueous solution. The results showed that the GM/GO hydrogel had a porous structure and a high adsorption capacity toward methylene blue (MB). The pseudo-second-order kinetic model could fit the rate equation of MB adsorption onto the GM/GO hydrogel. The adsorption of MB onto GM/GO hydrogel was a spontaneous process. In addition, the equilibrium adsorption isotherm data indicated that equilibrium data were fitted to the Langmuir isotherm and the maximum dye adsorption capacity was 198,69 mg.g-1. Moreover, the hydrogel was stable and easily recovered and adsorption capacity was around 97% of the initial saturation adsorption capacity after being used five times.


Author(s):  
Conrad K. Enenebeaku ◽  
Nnaemeka J. Okorocha ◽  
Uchechi E. Enenebeaku ◽  
Ikechukwu C. Ukaga

The potential of white potato peel powder for the removal of methyl red (MR) dye from aqueous solution was investigated. The adsorbent was characterized by FTIR and SEM analysis. Batch adsorption studies were conducted and various parameters such as contact time, adsorbent dosage, initial dye concentration, pH and temperature were studied to observe their effects in the dye adsorption process. The optimum conditions for the adsorption of MR onto the adsorbent (WPPP) was found to be contact (80 mins), pH (2) and temperature (303K) for an initial MR dye concentration of 50mg/l and adsorbent dose of 1.0g. The experimental equilibrium adsorption data of the (MR) dye fitted best and well to the Freundlich isotherm model. The maximum adsorption capacity was found to be 30.48mg/g for the adsorption of MR. The kinetic data conforms to the pseudo – second order kinetic model.


2020 ◽  
Vol 208 ◽  
pp. 407-422
Author(s):  
Rachid Ait Akbour ◽  
Jamila El Gaayda ◽  
Fatima Ezzahra Titchou ◽  
Aïcha Khenifi ◽  
Hanane Afanga ◽  
...  

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