A polyaniline@MoS2-based organic–inorganic nanohybrid for the removal of Congo red: adsorption kinetic, thermodynamic and isotherm studies

2018 ◽  
Vol 42 (23) ◽  
pp. 18802-18809 ◽  
Author(s):  
Rajeev Kumar ◽  
Sajid Ali Ansari ◽  
M. A. Barakat ◽  
Abdullah Aljaafari ◽  
Moo Hwan Cho
Keyword(s):  
Congo Red ◽  
Polymeric Materials ◽  
Adsorption Kinetic ◽  
Efficient Removal ◽  
Removal Of Contaminants

Organic–inorganic functional hybrid polymeric materials are well known for the efficient removal of contaminants from wastewater.

Novel mesoporous organosilica nanoparticles with ferrocene group for efficient removal of contaminants from wastewater

2019 ◽  
Vol 554 ◽  
pp. 565-571 ◽  
Author(s):  
Shun Yang ◽  
Shanshan Chen ◽  
Jie Fan ◽  
Tongtong Shang ◽  
Dongling Huang ◽  
...  
Keyword(s):  
Efficient Removal ◽  
Mesoporous Organosilica ◽  
Removal Of Contaminants

Efficient removal of Congo red from pH‐unregulated aqueous solutions by lignosulfonate‐based polycatecholamine

2019 ◽  
Vol 137 (18) ◽  
pp. 48640
Author(s):  
Song Gao ◽  
Gang Wei ◽  
Qiang Liu ◽  
Qinze Liu ◽  
Tingting Gao ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Congo Red ◽  
Efficient Removal

Efficient removal of Congo red from aqueous solutions using phytogenic aluminum sulfate nano coagulant

2020 ◽  
Vol 251 ◽  
pp. 123040 ◽  
Author(s):  
Julia Garvasis ◽  
Anupama R. Prasad ◽  
K.O. Shamsheera ◽  
P.K. Jaseela ◽  
Abraham Joseph
Keyword(s):  
Aqueous Solutions ◽  
Congo Red ◽  
Aluminum Sulfate ◽  
Efficient Removal

scholarly journals Anionic Dye Removal by Polypyrrole-Modified Red Mud and Its Application to a Lab-Scale Column: Adsorption Performance and Phytotoxicity Assessment

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Feng Zhang ◽  
Yue Yin ◽  
Chunlei Qiao ◽  
Ya-nan Luan ◽  
Mengyan Guo ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Methyl Orange ◽  
Red Mud ◽  
Congo Red ◽  
Dye Removal ◽  
Column Studies ◽  
Efficient Removal ◽  
Adsorption Capacities ◽  
Column Adsorption ◽  
Bean Sprouts

In this study, polypyrrole-modified red mud (PRM) was prepared for the efficient removal of anionic dyes (methyl orange and Congo red) from aqueous solutions. The phytotoxicity (bean sprouts) of the dye solution before and after dye removal was investigated. Adsorption kinetics confirmed that the adsorption of methyl orange (MO) and Congo red (CR) on PRM was controlled by chemical reactions between the functional groups of polypyrrole and dyes. From Langmuir isotherm fitting, we found the theoretical adsorption capacities of MO and CR on PRM were 194.1 and 314.9 mg/g, respectively. The adsorption progress of MO and CR on PRM was found to be spontaneous and endothermic. The column studies demonstrated that, under dynamic flow, the PRM can efficiently remove MO and CR from aqueous solution, with adsorption capacities of 31.08 and 55.04 mg/g, respectively. In the toxicity test, the phytotoxicity of the column effluents (after dye removal) was significantly lowered compared to the initial dye influents. After the removal of MO and CR, the average root length of bean sprouts was increased from 3.30 cm to 5.18 cm and from 3.01 cm to 7.00 cm, respectively. These findings highlighted the efficient removal of dyes by PRM from aqueous solution, demonstrating the possible application of PRM for the removal of dye from dye-contaminated wastewaters.

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