Metal-free high-adsorption-capacity adsorbent derived from spent coffee grounds for methylene blue

RSC Advances ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 5118-5127
Author(s):  
Bayaraa Sukhbaatar ◽  
Bongyoung Yoo ◽  
Jae-Hong Lim
Keyword(s):  
Methylene Blue ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Spent Coffee Grounds ◽  
High Adsorption ◽  
Metal Free ◽  
Coffee Grounds ◽  
High Adsorption Capacity

Spent coffee grounds derived carbon was prepared for the adsorption of methylene blue in aqueous solutions.

scholarly journals Ginger Straw Waste-Derived Porous Carbons as Effective Adsorbents toward Methylene Blue

Molecules ◽  
2019 ◽  
Vol 24 (3) ◽  
pp. 469 ◽  
Author(s):  
Wenlin Zhang ◽  
Huihe Li ◽  
Jianmin Tang ◽  
Hongjia Lu ◽  
Yiqing Liu
Keyword(s):  
Methylene Blue ◽  
Porous Materials ◽  
Adsorption Capacity ◽  
Adsorption Rate ◽  
Dye Wastewater ◽  
Porous Carbons ◽  
High Adsorption ◽  
New Approach ◽  
High Adsorption Capacity

In this work, ginger straw waste-derived porous carbons, with high adsorption capacity, high adsorption rate, and good reusability for removing the toxic dye of methylene blue from wastewater, were prepared by a facile method under oxygen-limiting conditions. This study opens a new approach for the utilization of ginger straw waste, and the porous materials can be employed as great potential adsorbents for treating dye wastewater.

scholarly journals Chelating magnetic nanocomposite for the rapid removal of Pb(ii) ions from aqueous solutions: characterization, kinetic, isotherm and thermodynamic studies

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 433-448 ◽  
Author(s):  
Atefeh Moradi ◽  
Peyman Najafi Moghadam ◽  
Reza Hasanzadeh ◽  
Mika Sillanpää
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Aqueous Media ◽  
Magnetic Nanocomposite ◽  
High Adsorption ◽  
Thermodynamic Studies ◽  
Rapid Removal ◽  
High Adsorption Capacity

Fe3O4@GMA–AAm nanocomposite as a novel adsorbent with high adsorption capacity for rapid removal of Pb2+ from aqueous media was synthesized.

High adsorption capacity of V-doped TiO2 for decolorization of methylene blue

2012 ◽  
Vol 258 (19) ◽  
pp. 7299-7305 ◽  
Author(s):  
Thanh-Binh Nguyen ◽  
Moon-Jin Hwang ◽  
Kwang-Sun Ryu
Keyword(s):  
Methylene Blue ◽  
Adsorption Capacity ◽  
High Adsorption ◽  
Doped Tio2 ◽  
High Adsorption Capacity

Facile synthesis of magnetic hybrid metal–organic frameworks with high adsorption capacity for methylene blue

2017 ◽  
Vol 31 (11) ◽  
Author(s):  
Rui Wang ◽  
Chunhua Ge ◽  
Tianzhu Xing ◽  
Yuanyuan Zhang ◽  
Yundi Zhang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Adsorption Capacity ◽  
Metal Organic Frameworks ◽  
High Adsorption ◽  
Facile Synthesis ◽  
Metal Organic ◽  
High Adsorption Capacity

scholarly journals Super-Adsorbent Hydrogels for Removal of Methylene Blue from Aqueous Solution: Dye Adsorption Isotherms, Kinetics, and Thermodynamic Properties

Macromol ◽  
2021 ◽  
Vol 1 (4) ◽  
pp. 256-275
Author(s):  
Buddhabhushan Salunkhe ◽  
Thomas P. Schuman
Keyword(s):  
Methylene Blue ◽  
Adsorption Capacity ◽  
Organic Dyes ◽  
Polymer Network ◽  
Dye Adsorption ◽  
Isotherm Models ◽  
High Adsorption ◽  
High Adsorption Capacity ◽  
Efficient Option ◽  
Sodium Styrenesulfonate

Removal of dyes through adsorption from wastewater has gained substantial interest in recent years, especially in development of hydrogel based adsorbents, owing to their easy use and economical nature. The aim of the present study was to design a super-adsorbent hydrogel based on sodium styrenesulfonate (NaSS) monomer for removal of dyes like methylene blue (MB). NaSS displays both an aromatic ring and strongly ionic group in its monomer structure that can enhance adsorption capacity. Poly(sodium styrenesulfonate-co-dimethylacrylamide) hydrogels were prepared by solution free radical polymerization using gelatin methacryloyl (GelMA) as crosslinker, creating a highly porous, three-dimensionally crosslinked polymer network contributing to higher swelling ratios of up to 27,500%. These super-adsorbent hydrogels exhibited high adsorption capacity of 1270 mg/g for MB adsorption with above 98% removal efficiency. This is the first report for such a high adsorption capacity for dye absorbance for NaSS-based hydrogels. Additionally, the adsorption kinetics using a pseudo-first-order and the Freundlich adsorption isotherm models for multilayer, heterogeneous adsorption processes has been reported. The adsorbents’ reusability was confirmed through 4 repeated cycles of desorption-adsorption. The results discussed herein illustrate that NaSS based chemistries can be used as an efficient option for removal of organic dyes from contaminated wastewater.

Phenol adsorption from aqueous solutions by functionalized multiwalled carbon nanotubes with a pyrazoline derivative in the presence of ultrasound

RSC Advances ◽  
2015 ◽  
Vol 5 (55) ◽  
pp. 44263-44273 ◽  
Author(s):  
H. Tahermansouri ◽  
Z. Dehghan ◽  
F. Kiani
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Multiwalled Carbon Nanotubes ◽  
High Adsorption ◽  
Multiwalled Carbon ◽  
Phenol Adsorption ◽  
Functionalized Multiwalled Carbon Nanotubes ◽  
High Adsorption Capacity ◽  
Pyrazoline Derivative

MWCNT-Py indicated a high adsorption capacity for phenol in comparison with MWCNT-COOH.

scholarly journals Mxene/alginate composites for lead and copper ion removal from aqueous solutions

RSC Advances ◽  
2019 ◽  
Vol 9 (50) ◽  
pp. 29015-29022 ◽  
Author(s):  
Yanjie Dong ◽  
Dashen Sang ◽  
Chengdong He ◽  
Xinfeng Sheng ◽  
Longwen Lei
Keyword(s):  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
High Efficiency ◽  
Copper Ion ◽  
High Adsorption ◽  
Ion Removal ◽  
High Adsorption Capacity

Studies on Mxene/alginate composite adsorption have opened up a new avenue for designing adsorbents possessing high adsorption capacity and high efficiency.

Functionalized and reusable polyethylene fibres for Au(iii) extraction from aqueous solution with high adsorption capacity and selectivity

RSC Advances ◽  
2016 ◽  
Vol 6 (90) ◽  
pp. 87221-87229 ◽  
Author(s):  
Li-juan Pang ◽  
Rong Li ◽  
Qian-hong Gao ◽  
Jiang-tao Hu ◽  
Zhe Xing ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Radiation Grafting ◽  
High Adsorption ◽  
High Adsorption Capacity

Functional UHMWPE fibres, used for efficient and selective Au(iii) adsorption from aqueous solutions, were successfully synthesized by a radiation grafting method.

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