scholarly journals Surface basicity mediated rapid and selective adsorptive removal of Congo red over nanocrystalline mesoporous CeO2

2021 ◽  
Author(s):  
Deepak Joshy ◽  
Seena Chacko ◽  
Yahya Ahmed Ismail ◽  
Pradeepan Periyat
Keyword(s):  
Congo Red ◽  
Organic Pollutant ◽  
Ceo2 Nanoparticles ◽  
First Report ◽  
Adsorptive Removal ◽  
Surface Basicity ◽  
Mesoporous Ceo2

Herein we first report surface basicity mediated rapid and selective adsorptive removal of congored from mixture of organic pollutant over nanocrystalline mesoporous CeO2. The surface basicity of mesoporous CeO2 nanoparticles...

scholarly journals Facile template-free synthesis of hierarchically porous NiO hollow architectures with high-efficiency adsorptive removal of Congo red

2019 ◽  
Vol 26 (6) ◽  
pp. 1743-1753 ◽  
Author(s):  
Hanmei Hu ◽  
Chonghai Deng ◽  
Mei Sun ◽  
Kehua Zhang ◽  
Man Wang ◽  
...  
Keyword(s):  
Congo Red ◽  
High Efficiency ◽  
Hierarchically Porous ◽  
Adsorptive Removal ◽  
Template Free

scholarly journals Evaluation of Mg/Al Layered Double Hydroxides as Adsorbent Material for Adsorptive Removal of Congo Red (Acid Red 28) Azodye from Aqueous Solution

2020 ◽  
Vol 32 (9) ◽  
pp. 2381-2388
Author(s):  
LAM VAN TAN ◽  
HONG THAM NGUYEN THI ◽  
TO UYEN DAO THI ◽  
VAN THUAN TRAN
Keyword(s):  
Aqueous Solution ◽  
Layered Double Hydroxides ◽  
Congo Red ◽  
Organic Dyes ◽  
Synthesis Temperature ◽  
Inorganic Layer ◽  
Adsorptive Removal ◽  
Ft Ir ◽  
Ir Analysis ◽  
Double Hydroxides

The use of inorganic layer compounds as adsorbents for organic dyes in water treatment is of increasing interest. In this study, an attempt is made for the synthesis of Mg/Al LDHs by the hydrothermal method. The synthesis temperature was found to significantly affect to the structure of layered double hydroxides (LDHs), as pointed out by FT-IR analysis. In addition, an adsorption capacity of the synthesized LDHs against Congo red in aqueous solutions was investigated and also compared the adsorption results with other dyes such as methylene blue and methyl orange.

scholarly journals MWCNTs/Ag-ZnO nanocomposite for efficient photocatalytic degradation of congo red

2020 ◽  
Vol 34 (1) ◽  
pp. 55-66
Author(s):  
Amogne W. Yibeltal ◽  
Belete B. Beyene ◽  
Shimelis Admassie ◽  
Abi M. Taddesse
Keyword(s):  
Zinc Oxide ◽  
Visible Light ◽  
Rate Constant ◽  
Congo Red ◽  
Organic Pollutant ◽  
Order Rate Constant ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Role Of Light

Three nanomaterials namely, zinc oxide (ZC), silver-doped zinc oxide (AZ) and multi-walled carbon nanotubes coupled with silver doped zinc oxide nanocomposite (MWAZ) were synthesized, characterized and employed for photo degradation of an organic pollutant, congo red (CR). The photocatalytic activity study showed efficient degradation of CR upon irradiation with UV and visible light in the order of MWAZ > AZ > ZC > Commercial ZnO (ZCO). Percentage photodegradation of 99% and a pseudo 1st order rate constant of 2.3 x 10-2 min-1 were achieved by MWAZ as a catalyst under visible light irradiation, implying photo- sensitizing ability of MWCNTs and the capability of MWCNTs to hinder recombination of photogenerated holes and electrons. The control experiment in the dark condition gave only 7.9% of degradation efficiency and 5.56 x 10-4 min-1 rate constant, implying the significant role of light source for catalytic degradation of CR.   Bull. Chem. Soc. Ethiop. 2020, 34(1), 55-66. DOI: https://dx.doi.org/10.4314/bcse.v34i1.5

Swift Adsorptive Removal of Congo Red from Aqueous Solution by K1.33Mn8O16 Nanowires

2013 ◽  
Vol 13 (8) ◽  
pp. 5452-5460 ◽  
Author(s):  
Junshu Wu ◽  
Hongyi Li ◽  
Jinshu Wang ◽  
Zhifei Li
Keyword(s):  
Aqueous Solution ◽  
Congo Red ◽  
Adsorptive Removal

A controlled solvethermal approach to synthesize nanocrystalline iron oxide for congo red adsorptive removal from aqueous solutions

2016 ◽  
Vol 51 (9) ◽  
pp. 4481-4494 ◽  
Author(s):  
Jinrong Gao ◽  
Wei Wei ◽  
MingJin Shi ◽  
Hekun Han ◽  
Junwei Lu ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Aqueous Solutions ◽  
Congo Red ◽  
Adsorptive Removal ◽  
Nanocrystalline Iron

scholarly journals Adsorptive Removal of Congo red dye from wastewater using Fenugreek Powder

2020 ◽  
Author(s):  
Neha bhadauria ◽  
Arjun Suresh
Keyword(s):  
Aqueous Solution ◽  
Congo Red ◽  
Contact Time ◽  
Adsorption Process ◽  
Dye Adsorption ◽  
Textile Dye ◽  
Adsorptive Removal ◽  
Congo Red Dye ◽  
Red Dye ◽  
Maximum Removal

The present study analyzed the efficiency of a naturally derived fenugreek powder for removal of Congo red dye from the aqueous solution. The flocculation Studies on Congo Red (CR) a hazardous, textile dye onto Fenugreek Powder and its adsorption was analyzed. Fenugreek Powder is Eco-friendly, biodegradable and locally available in the market. The dye adsorption process was performed in different batches at varying pH, dye concentration, adsorbent concentration and contact time to get the best results. The result showed that the maximum removal of dye was 42.4% with 10mg/l of Fenugreek powder at pH 4.

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