Synthesis of TiO 2 Using Calotropis gigantea for Visible Light Excitation and Degradation of Congo Red Dye

2021 ◽  
Vol 25 (4) ◽  
pp. 04021026
Author(s):  
Venkatesan Prashanth ◽  
Neelancherry Remya
Keyword(s):  
Visible Light ◽  
Congo Red ◽  
Calotropis Gigantea ◽  
Congo Red Dye ◽  
Light Excitation ◽  
Red Dye

Preparation of a novel Z-scheme g-C3N4/RGO/Bi2Fe4O9 nanophotocatalyst for degradation of Congo Red dye under visible light

2020 ◽  
Vol 109 ◽  
pp. 108008 ◽  
Author(s):  
Mehrnaz Babaei Shekardasht ◽  
Mohammad Hadi Givianrad ◽  
Parvin Gharbani ◽  
Zohreh Mirjafary ◽  
Ali Mehrizad
Keyword(s):  
Visible Light ◽  
Congo Red ◽  
Congo Red Dye ◽  
Red Dye

Visible light driven efficient photocatalytic degradation of Congo red dye catalyzed by hierarchical CuS–Bi2CuxW1−xO6−2x nanocomposite system

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 35589-35601 ◽  
Author(s):  
Yagna Prakash Bhoi ◽  
Swaraj Rashmi Pradhan ◽  
Chinmaya Behera ◽  
B. G. Mishra
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Congo Red ◽  
Nanocomposite Materials ◽  
Congo Red Dye ◽  
System P ◽  
Nanocomposite System ◽  
Visible Light Driven ◽  
Red Dye

A series of CuS–Bi2CuxW1−xO6−2x nanocomposite materials were prepared and evaluated as photocatalyst for degradation of Congo red dye from aqueous sources.

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.

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