An innovative amino-magnetite@graphene oxide@amino-manganese dioxide as a nitrogen-rich nanocomposite for removal of Congo red dye

2022 ◽  
Vol 121 ◽  
pp. 108744
Author(s):  
Mohamed E. Mahmoud ◽  
Mohamed F. Amira ◽  
Mayar M.H.M. Azab ◽  
Amir M. Abdelfattah
Keyword(s):  
Graphene Oxide ◽  
Manganese Dioxide ◽  
Congo Red ◽  
Congo Red Dye ◽  
Red Dye

Preparation of graphene oxide from Bio-soot wastes: As an efficient adsorbent for highly noxious Congo red dye

FlatChem ◽  
2020 ◽  
Vol 24 ◽  
pp. 100198
Author(s):  
Shraban Kumar Sahoo ◽  
Jitendra Kumar Sahoo ◽  
Gagan Kumar Panigrahi ◽  
Dillip Kumar Pattanayak ◽  
Aninda Sundar Rout ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Congo Red ◽  
Congo Red Dye ◽  
Red Dye ◽  
Efficient Adsorbent

scholarly journals Preparation of gemini surfactant/graphene oxide composites and their superior performance for Congo red adsorption

RSC Advances ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 4908-4916 ◽  
Author(s):  
Shuai He ◽  
Xingli Liu ◽  
Ping Yan ◽  
Anqi Wang ◽  
Jinzhu Su ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Congo Red ◽  
Gemini Surfactant ◽  
Superior Performance ◽  
Congo Red Dye ◽  
Adsorption Capacities ◽  
Red Dye ◽  
Oxide Composites

Gemini surfactant/GO composites were prepared for the removal of Congo red dye, and show excellent adsorption capacities and reusabilities.

scholarly journals Graphene Oxide-CuFe2O4 Nanohybrid Material as an Adsorbent of Congo Red Dye

Carbon Trends ◽  
2022 ◽  
pp. 100147
Author(s):  
Adamantia Zourou ◽  
Afroditi Ntziouni ◽  
Nikolaos Adamopoulos ◽  
Tiberiu Roman ◽  
Fu Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Congo Red ◽  
Congo Red Dye ◽  
Red Dye ◽  
Nanohybrid Material

An effective method for determining the retention and distribution of cellulose nanofibrils in paper handsheets by dye labeling

TAPPI Journal ◽  
2018 ◽  
Vol 17 (03) ◽  
pp. 157-164 ◽  
Author(s):  
Shengdan Wang ◽  
Wenhua Gao ◽  
Kefu Chen ◽  
Jinsong Zeng ◽  
Jun Xu ◽  
...  
Keyword(s):  
Correlation Coefficient ◽  
Congo Red ◽  
Kraft Pulp ◽  
Cellulose Nanofibrils ◽  
Standard Curve ◽  
Congo Red Dye ◽  
Mechanical Disintegration ◽  
Softwood Kraft Pulp ◽  
White Water ◽  
Red Dye

Cellulose nanofibrils (CNF) were prepared by cellulase in conjunction with mechanical disintegration from the bleached softwood kraft pulp and labelled by Congo red dye. The labelled CNF were used to investigate the retention and distribution of CNF in paper handsheets. The retention of the labelled CNF was obtained by measuring the absorbance of white water using an ultraviolet-visible spectrophotometer. The results showed that this method for measuring the retention was rapid, feasible, and sensitive, owing to the high correlation coefficient R2 (0.9993) of the standard curve. The labelled CNF showed even distribution in paper handsheets. The colorimetric values of paper handsheets were explored with a residual ink analyzer.

scholarly journals Functionalization of Congo red dye as a light harvester on solar cell

2020 ◽  
Vol 18 (1) ◽  
pp. 287-294
Author(s):  
Harsasi Setyawati ◽  
Handoko Darmokoesoemo ◽  
Irmina Kris Murwani ◽  
Ahmadi Jaya Permana ◽  
Faidur Rochman
Keyword(s):  
Solar Cell ◽  
Congo Red ◽  
Large Scale ◽  
High Efficiency ◽  
Solar Cell Device ◽  
Dye Sensitized ◽  
Congo Red Dye ◽  
Elemental Analyses ◽  
Red Dye ◽  
Solar Cell Technology

AbstractThe demands of ecofriendly technologies to produce a reliable supply of renewable energy on a large scale remains a challenge. A solar cell based on DSSC (Dye-Sensitized Solar Cell) technology is environmentally friendly and holds the promise of a high efficiency in converting sunlight into electricity. This manuscript describes the development of a light harvester system as a main part of a DSSC. Congo red dye has been functionalized with metals (Fe, Co, Ni), forming a series of complexes that serve as a novel light harvester on the solar cell. Metal-congo red complexes have been characterized by UV-VIS and FTIR spectroscopy, and elemental analyses. The performance of metal complexes in capturing photons from sunlight has been investigated in a solar cell device. The incorporation of metals to congo red successfully improved of the congo red efficiency as follows: Fe(II)-congo red, Co(II)-congo red and Ni(II)-congo red had efficiencies of 8.17%, 6.13% and 2.65%, respectively. This research also discusses the effect of metal ions on the ability of congo red to capture energy from sunlight.

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