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.

Adsorption of Methylene Blue onto Char from Pyrolysis of Municipal Solid Waste

2013 ◽  
Vol 345 ◽  
pp. 163-166 ◽  
Author(s):  
Hong Chen ◽  
Chen Hong Zhang ◽  
Tao Wang
Keyword(s):  
Methylene Blue ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Adsorption Capacity ◽  
Dye Wastewater ◽  
High Adsorption ◽  
Freundlich Model ◽  
High Adsorption Capacity ◽  
Ph Range

To fully utilize the residual of microwave-heated pyrolysis, the char was activated by vapor and used as adsorbent. Langmuir and Freundlich model were applied to adsorption for methylene blue, and the Freundlich gave a better fitting results. The high amount of adsorbent and temperature were favorable to adsorption, and the adsorbent showed high adsorption capacity in the pH range of 48. These results indicate the activated char have a greatly potential in treatment of dye wastewater.

Fabrication of nitrogen-doped porous carbons derived from ammoniated copolymer precursor: Record-high adsorption capacity for indole

2019 ◽  
Vol 374 ◽  
pp. 1005-1012 ◽  
Author(s):  
Ding-Ming Xue ◽  
Shi-Chao Qi ◽  
Qiong-Zhen Zeng ◽  
Ren-Jie Lu ◽  
Jiang-Hai Long ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Porous Carbons ◽  
High Adsorption ◽  
Nitrogen Doped ◽  
High Adsorption Capacity

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

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.

scholarly journals Preparation of a poly(acrylic acid) based hydrogel with fast adsorption rate and high adsorption capacity for the removal of cationic dyes

RSC Advances ◽  
2019 ◽  
Vol 9 (37) ◽  
pp. 21075-21085 ◽  
Author(s):  
Zhenyu Yuan ◽  
Jie Wang ◽  
Yiming Wang ◽  
Qian Liu ◽  
Yujie Zhong ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Aqueous Solutions ◽  
Adsorption Capacity ◽  
Glycidyl Methacrylate ◽  
Adsorption Rate ◽  
Cationic Dyes ◽  
High Adsorption ◽  
High Adsorption Capacity ◽  
Poly Acrylic Acid

A biocompatible Dex-MA/PAA hydrogel was prepared through copolymerization of glycidyl methacrylate substituted dextran (Dex-MA) with acrylic acid (AA), which was applied as the adsorbent to remove cationic dyes from aqueous solutions.

Sign in / Sign up

Export Citation Format

Share Document