scholarly journals Pillar[6]arene-based supramolecular polymeric materials constructed via electrostatic interactions for rapid and efficient organic dye removal from water

2021 ◽  
Author(s):  
Yong Yao ◽  
Xin Yan ◽  
Youyou Huang ◽  
Moupan Cen ◽  
Jin Wang ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Dye Removal ◽  
Organic Dyes ◽  
Polymeric Materials ◽  
Organic Dye

A pillar[6]arene-based polymeric materials was constructed from electrostatic interactions efficiently, which can further apply in removing organic dyes from water.

scholarly journals Sustainable Development of Magnetic Chitosan Core–Shell Network for the Removal of Organic Dyes from Aqueous Solutions

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7701
Author(s):  
Karthik Rathinam ◽  
Xinwei Kou ◽  
Ralph Hobby ◽  
Stefan Panglisch
Keyword(s):  
Electrostatic Interactions ◽  
Dye Removal ◽  
Adsorption Process ◽  
Organic Dyes ◽  
Core Shell ◽  
Order Kinetic ◽  
Alizarin Red ◽  
Anthraquinone Dye ◽  
Magnetic Chitosan ◽  
Repulsive Forces

The wide use of alizarin red S (ARS), a typical anthraquinone dye, has led to its continued accumulation in the aquatic environment, which causes mutagenic and carcinogenic effects on organisms. Therefore, this study focused on the removal of ARS dye by adsorption onto a magnetic chitosan core–shell network (MCN). The successful synthesis of the MCN was confirmed by ATR-FTIR, SEM, and EDX analysis. The influence of several parameters on the removal of ARS dye by the MCN revealed that the adsorption process reached equilibrium after 60 min, pH played a major role, and electrostatic interactions dominated for the ARS dye removal under acidic conditions. The adsorption data were described well by the Langmuir isotherm and a pseudo-second order kinetic model. In addition to the preferable adsorption of hydrophobic dissolved organic matter (DOM) fractions onto the MCN, the electrostatic repulsive forces between the previously adsorbed DOM onto MCN and ARS dye resulted in lower ARS dye removal. Furthermore, the MCN could easily be regenerated and reused for up to at least five cycles with more than 70% of its original efficiency. Most importantly, the spent MCN was pyrolytically converted into N-doped magnetic carbon and used as an adsorbent for various dyes, thus establishing a waste-free adsorption process.

Yolk-shell Fe3O4@MOF-5 nanocomposites as a heterogeneous Fenton-like catalyst for organic dye removal

2021 ◽  
pp. 118620
Author(s):  
Rui-Xia Yang ◽  
Qiao-Hong Peng ◽  
Bing Yu ◽  
You-Qing Shen ◽  
Hai-Lin Cong
Keyword(s):  
Dye Removal ◽  
Organic Dye ◽  
Heterogeneous Fenton

scholarly journals Conversion of industrial carpet waste into adsorbent materials for organic dye removal from water

2021 ◽  
pp. 100150
Author(s):  
Kasidit Janbooranapinij ◽  
Arinchai Yimponpipatpol ◽  
Narueporn Ngamthanacom ◽  
Gasidit Panomsuwan
Keyword(s):  
Dye Removal ◽  
Organic Dye ◽  
Carpet Waste ◽  
Adsorbent Materials

Conducting polymer composite aerogel with magnetic properties for organic dye removal

2020 ◽  
Vol 260 ◽  
pp. 116266 ◽  
Author(s):  
Patrycja Bober ◽  
Islam M. Minisy ◽  
Udit Acharya ◽  
Jiří Pfleger ◽  
Vladimir Babayan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Conducting Polymer ◽  
Polymer Composite ◽  
Dye Removal ◽  
Organic Dye ◽  
Composite Aerogel

Self-assembled 3D ACF–rGO–TiO2 composite as efficient and recyclable spongy adsorbent for organic dye removal

2015 ◽  
Vol 83 ◽  
pp. 522-527 ◽  
Author(s):  
Bing Feng ◽  
Xiaoyong Xu ◽  
Wei Xu ◽  
Gang Zhou ◽  
Jingguo Hu ◽  
...  
Keyword(s):  
Dye Removal ◽  
Organic Dye ◽  
Self Assembled

scholarly journals Synthesis of CaWO4-biochar nanocomposites for organic dye removal

2019 ◽  
Vol 110 ◽  
pp. 169-173 ◽  
Author(s):  
Ying Zhang ◽  
Ruimei Fan ◽  
Qinku Zhang ◽  
Ying Chen ◽  
Omaid Sharifi ◽  
...  
Keyword(s):  
Dye Removal ◽  
Organic Dye

Recent developments in MnO2-based photocatalysts for organic dye removal: a review

2020 ◽  
Vol 27 (6) ◽  
pp. 5759-5778 ◽  
Author(s):  
Sin-Ling Chiam ◽  
Swee-Yong Pung ◽  
Fei-Yee Yeoh
Keyword(s):  
Dye Removal ◽  
Organic Dye ◽  
Recent Developments

Shape-dependent adsorption of CeO2 nanostructures for superior organic dye removal

2018 ◽  
Vol 525 ◽  
pp. 225-233 ◽  
Author(s):  
Ning-Chao Zheng ◽  
Zhu Wang ◽  
Jian-You Long ◽  
Ling-Jun Kong ◽  
Di-Yun Chen ◽  
...  
Keyword(s):  
Dye Removal ◽  
Organic Dye

scholarly journals Magnetic biochar from alkali-activated rice straw for removal of rhodamine B from aqueous solution

2019 ◽  
Vol 25 (4) ◽  
pp. 536-544 ◽  
Author(s):  
Zhaogang Ren ◽  
Fang Chen ◽  
Bin Wang ◽  
Zhongxian Song ◽  
Ziyu Zhou ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Rice Straw ◽  
Rhodamine B ◽  
Electrostatic Interactions ◽  
Organic Dyes ◽  
Low Cost ◽  
Magnetic Biochar ◽  
Other Substances ◽  
Initial Ph ◽  
Alkali Activated

To address organic dye wastewater, economic and effective adsorbents are required. Here, magnetic biochar from alkali-activated rice straw (AMBC) was successfully synthesized using one-step magnetization and carbonization method. The alkaline activation caused the large specific surface area, high pore volume and abundant oxygen-containing groups of the AMBC, and the magnetization gave the AMBC a certain degree of electropositivity and fast equilibrium characteristics. These characteristics collectively contributed to a relative high adsorption capacity of 53.66 mg g<sup>−1</sup> for this adsorbent towards rhodamine B (RhB). In brief, RhB can spontaneously adsorb onto the heterogeneous surface of the AMBC and reach the equilibrium in 60 min. Although the initial pH, ionic strength and other substances of the solution affected the adsorption performance of the AMBC, it could be easily regenerated and reused with considerable adsorption content. Based on the results, H-bonds, π–π stacking and electrostatic interactions were speculated as the primary mechanisms for RhB adsorption onto the AMBC, which was also demonstrated by the FTIR analysis. With the advantageous features of low cost, easy separation, considerable adsorption capacity and favorable stability and reusability, the AMBC would be a potential adsorbent for removing organic dyes from wastewater.

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