scholarly journals Synthesis, Characterization, and Utilization of a Lignin-Based Adsorbent for Effective Removal of Azo Dye from Aqueous Solution

ACS Omega ◽  
2020 ◽  
Vol 5 (6) ◽  
pp. 2865-2877 ◽  
Author(s):  
Xianzhi Meng ◽  
Brent Scheidemantle ◽  
Mi Li ◽  
Yun-yan Wang ◽  
Xianhui Zhao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Azo Dye ◽  
Effective Removal

Design of novolac resin-based network polymers for adsorptive removal of azo dye molecules

RSC Advances ◽  
2016 ◽  
Vol 6 (34) ◽  
pp. 28781-28786 ◽  
Author(s):  
Samaresh Ghosh ◽  
Mridula Acharyya
Keyword(s):  
Aqueous Solution ◽  
Azo Dye ◽  
Polymer Networks ◽  
Dye Molecules ◽  
Novolac Resin ◽  
Network Polymers ◽  
Adsorptive Removal ◽  
Effective Removal

Novolac resin based two polymer networks were synthesized for the effective removal of azo dye molecules from aqueous solution.

Effective removal of azo-dye orange II from aqueous solution by zirconium-based chitosan microcomposite adsorbent

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 93840-93849 ◽  
Author(s):  
Lingfan Zhang ◽  
Linxiao Chen ◽  
Xin Liu ◽  
Wenqing Zhang
Keyword(s):  
Aqueous Solution ◽  
Azo Dye ◽  
Orange Ii ◽  
Effective Removal ◽  
Efficient Adsorbent

In this study, zirconium-based chitosan (CTS@Zr) microcomposite was prepared and employed as an efficient adsorbent for the removal of orange II dye from aqueous solution.

Effective removal of malachite green dye from aqueous solution in hybrid system utilizing agricultural waste as particle electrodes

Chemosphere ◽  
2021 ◽  
Vol 273 ◽  
pp. 129634
Author(s):  
A. Annam Renita ◽  
Kilaru Harsha Vardhan ◽  
P. Senthil Kumar ◽  
P. Tsopbou Ngueagni ◽  
A. Abilarasu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Malachite Green ◽  
Hybrid System ◽  
Agricultural Waste ◽  
Malachite Green Dye ◽  
Effective Removal

scholarly journals Chitosan/Zeolite Composite Aerogels for a Fast and Effective Removal of Both Anionic and Cationic Dyes from Water

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1691
Author(s):  
Angela Marotta ◽  
Enrica Luzzi ◽  
Martina Salzano de Luna ◽  
Paolo Aprea ◽  
Veronica Ambrogi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Broad Spectrum ◽  
Organic Dyes ◽  
Indigo Carmine ◽  
Zeolite 13X ◽  
Industrial Sectors ◽  
Effective Removal ◽  
Composite Aerogels ◽  
Zeolite Composite ◽  
Adsorption Desorption

Organic dyes are extensively used in many industrial sectors, and their uncontrolled disposal into wastewaters raises serious concerns for environmental and human health. Due to the large variety of such pollutants, an effective remediation strategy should be characterized by a broad-spectrum efficacy. A promising strategy is represented by the combination of different adsorbent materials with complementary functionalities to develop composite materials that are expected to remove different contaminants. In the present work, a broad-spectrum adsorbent was developed by embedding zeolite 13X powder (ZX) in a chitosan (CS) aerogel (1:1 by weight). The CS–ZX composite adsorbent removes both anionic (indigo carmine, IC) and cationic (methylene blue, MB) dyes effectively, with a maximum uptake capacity of 221 mg/g and 108 mg/g, respectively. In addition, the adsorption kinetics are rather fast, with equilibrium conditions attained in less than 2 h. The composite exhibits good mechanical properties in both dry and wet state, which enables its handling for reusability purposes. In this regard, preliminary tests show that the full restoration of the IC removal ability over three adsorption–desorption cycles is achieved using a 0.1 M NaOH aqueous solution, while a 1 M NaCl aqueous solution allows one to preserve >60% of the MB removal ability.

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