Removal of Congo Red from Aqueous Solutions by Spent Black Tea as Adsorbent

2018 ◽  
Vol 40 (4) ◽  
pp. 206-212 ◽  
Author(s):  
Rabia Jalil Khan ◽  
Ahmad Nauman Shah Saqib ◽  
Robina Farooq ◽  
Romana Khan ◽  
Maria Siddique
Keyword(s):  
Aqueous Solutions ◽  
Congo Red ◽  
Black Tea

Biogenic synthesis of Au and Ag nanoparticles using aqueous solutions of Black Tea leaf extracts

2009 ◽  
Vol 71 (1) ◽  
pp. 113-118 ◽  
Author(s):  
Naznin Ara Begum ◽  
Samiran Mondal ◽  
Saswati Basu ◽  
Rajibul A. Laskar ◽  
Debabrata Mandal
Keyword(s):  
Aqueous Solutions ◽  
Ag Nanoparticles ◽  
Black Tea ◽  
Leaf Extracts ◽  
Biogenic Synthesis ◽  
Tea Leaf

scholarly journals Enhanced Adsorption of Methylene Blue and Congo Red from Aqueous Solutions by MCM-41/HKUST-1 Composites

2019 ◽  
Vol 31 (8) ◽  
pp. 1675-1682 ◽  
Author(s):  
D.O. Sulistiono ◽  
E. Santoso ◽  
R. Ediati
Keyword(s):  
Methylene Blue ◽  
Mesoporous Silica ◽  
Aqueous Solutions ◽  
Congo Red ◽  
Metal Organic Framework ◽  
Solvent Mixture ◽  
Sem Images ◽  
Enhanced Adsorption ◽  
Xrd Patterns ◽  
Mcm 41

Impregnation of mesoporous silica MCM-41 on metal organic framework type HKUST-1 or often called CuBTC (BTC = 1,3,5-benzenetricarboxylate) has been successfully carried out by solvothermal methods in a solvent mixture of water, ethanol and N,N-dimethylformamide (DMF). The XRD patterns of the obtained solids showed that MCM-41/HKUST-1 composites had the same crystalline phase as pure as HKUST-1. SEM images revealed that the impregnation of the mesoporous silica to HKUST-1 did not alter the surface morphology of the original HKUST-1, which had octahedral shapes. In addition, the thermal stability of the MCM-41/HKUST-1 composites reached 302 °C, increased by 292 °C in comparison to the HKUST-1, even though the impregnation process resulted in a decreased in the specific surface area of the composites. Furthermore, MCM-41/HKUST-1 composites showed outstanding performance as adsorbent of methylene blue and Congo red in aqueous solutions. Results of adsorption studies showed that a pseudo-second order kinetics and Langmuir isotherm were observed for both types of dyes.

Efficient removal of Congo red from pH‐unregulated aqueous solutions by lignosulfonate‐based polycatecholamine

2019 ◽  
Vol 137 (18) ◽  
pp. 48640
Author(s):  
Song Gao ◽  
Gang Wei ◽  
Qiang Liu ◽  
Qinze Liu ◽  
Tingting Gao ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Congo Red ◽  
Efficient Removal

Adsorptive Remediation of Congo Red Dye in Aqueous Solutions Using Acid Pretreated Sugarcane Bagasse

2020 ◽  
Vol 28 (4) ◽  
pp. 1129-1137 ◽  
Author(s):  
Abd El-Aziz A. Said ◽  
Aref A. M. Aly ◽  
Mohamed N. Goda ◽  
Mohamed Abd El-Aal ◽  
Mohamed Abdelazim
Keyword(s):  
Aqueous Solutions ◽  
Sugarcane Bagasse ◽  
Congo Red ◽  
Congo Red Dye ◽  
Pretreated Sugarcane Bagasse ◽  
Red Dye

Efficient removal of Congo red from aqueous solutions using phytogenic aluminum sulfate nano coagulant

2020 ◽  
Vol 251 ◽  
pp. 123040 ◽  
Author(s):  
Julia Garvasis ◽  
Anupama R. Prasad ◽  
K.O. Shamsheera ◽  
P.K. Jaseela ◽  
Abraham Joseph
Keyword(s):  
Aqueous Solutions ◽  
Congo Red ◽  
Aluminum Sulfate ◽  
Efficient Removal

Complexation of Poly(vinyl alcohol)-Congo Red Aqueous Solutions. 2. SANS and SAXS Studies on Sol-Gel Transition

1994 ◽  
Vol 27 (22) ◽  
pp. 6383-6388 ◽  
Author(s):  
Mitsuhiro Shibayama ◽  
Fumiyoshi Ikkai ◽  
Shunji Nomura
Keyword(s):  
Aqueous Solutions ◽  
Congo Red ◽  
Vinyl Alcohol ◽  
Sol Gel ◽  
Poly Vinyl Alcohol ◽  
Sol Gel Transition ◽  
Gel Transition
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