Kinetics, isotherm, and thermodynamic studies of methylene blue selective adsorption and photocatalysis of malachite green from aqueous solution using layered Na-intercalated Cu-doped Titania

2019 ◽  
Vol 183 ◽  
pp. 105323 ◽  
Author(s):  
Amar Kundu ◽  
Aparna Mondal
Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 208
Author(s):  
Ramona B. J. Ihlenburg ◽  
Anne-Catherine Lehnen ◽  
Joachim Koetz ◽  
Andreas Taubert

New cryogels for selective dye removal from aqueous solution were prepared by free radical polymerization from the highly water-soluble crosslinker N,N,N’,N’-tetramethyl-N,N’-bis(2-ethylmethacrylate)-propyl-1,3-diammonium dibromide and the sulfobetaine monomer 2-(N-3-sulfopropyl-N,N-dimethyl ammonium)ethyl methacrylate. The resulting white and opaque cryogels have micrometer sized pores with a smaller substructure. They adsorb methyl orange (MO) but not methylene blue (MB) from aqueous solution. Mixtures of MO and MB can be separated through selective adsorption of the MO to the cryogels while the MB remains in solution. The resulting cryogels are thus candidates for the removal of hazardous organic substances, as exemplified by MO and MB, from water. Clearly, it is possible that the cryogels are also potentially interesting for removal of other compounds such as pharmaceuticals or pesticides, but this must be investigated further.


2019 ◽  
Vol 12 (5) ◽  
pp. 2412
Author(s):  
Kifline Milebudi Kifuani ◽  
Anatole Kifuani Kia Mayeko ◽  
Bernard Ilinga Lopaka ◽  
Pitchou Ngoy Bokolombe ◽  
Tharcisse Monama Ondongo ◽  
...  

2011 ◽  
Vol 148-149 ◽  
pp. 470-473
Author(s):  
Li Fang Zhang

The biosorption of Malachite Green from aqueous solution was investigated by using pretreated fungal biomass in a batch system. The effects of initial pH, NaCl concentration, initial dye concentration and temperature on dye biosorption were studied. The results showed that the pretreated fungal biomass exhibited higher dye removal at initial pH value of 5.0-6.0. The bosorption capacity was increased with the increasing temperature in studied temperature range. The Langmuir and Freundlich isotherm models were applied to experimental equilibrium data and the Langmuir model better described the equilibrium dye uptake than the Freundlich model. Thermodynamic studies revealed that the biosorption process was successful, spontaneous and endothermic in nature.


2020 ◽  
Vol 65 (8) ◽  
pp. 3998-4008 ◽  
Author(s):  
Yinli Liu ◽  
Jie Jia ◽  
Tingting Gao ◽  
Xueli Wang ◽  
Jianyong Yu ◽  
...  

2018 ◽  
Vol 10 (2) ◽  
pp. 172-180 ◽  
Author(s):  
Yue Xia ◽  
Fang-Chang Tsai ◽  
Ning Ma ◽  
Ke-Deng Zhang ◽  
Huan-Li Liu ◽  
...  

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