scholarly journals Adsorptive scavenging of cationic dyes from aquatic phase by H3PO4 activated indian jujube (Ziziphus mauritiana) seeds based activated carbon: Isotherm, kinetics, and thermodynamic study

2022 ◽  
pp. 101417
Author(s):  
Tabrez Alam Khan ◽  
Md. Nouman ◽  
Divya Dua ◽  
Suhail Ayoub Khan ◽  
Salman S. Alharthi
Keyword(s):  
Activated Carbon ◽  
Thermodynamic Study ◽  
Cationic Dyes ◽  
Ziziphus Mauritiana ◽  
Indian Jujube ◽  
Kinetics And Thermodynamic

scholarly journals Adsorption of Copper Ions (Cu++) in Aqueous Solution Using Activated Carbon and Biosorbent from Indian Jujube (Ziziphus mauritiana) Seed Hulls

2020 ◽  
pp. 13-24
Author(s):  
Harouna Massai ◽  
Djakba Raphael ◽  
Mouhamadou Sali
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Copper Ions ◽  
Carbon Powder ◽  
Ziziphus Mauritiana ◽  
Batch Mode ◽  
Freundlich Model ◽  
Jar Test ◽  
Standard Procedures ◽  
Indian Jujube

The present work aimed at mitigating the level of copper ions (Cu++) by adsorption in aqueous solution using activated carbon powder (AC) and biosorbent (BS) from the Indian jujube seed hulls. The AC and BS were prepared from the Indian jujube seed hulls and characterized    using standard procedures. In addition, the adsorption effects of Indian jujube seed hulls through the AC and BS were carried out using jar test experiment (batch mode) at different pH (1, 2, 3, and 4), ionic strengths (100-600 mg/L) and stirring speed (120rpm). Therefore, it was found that the adsorption time at equilibrium were 10 and 5 minutes respectively for the AC and the BS.  Furthermore, it was found that the reduction of copper ions were 99.40% and 73.08% for aqueous solutions of 100 ppm and 500 ppm respectively at the equilibrium state. It was also revealed that when the mass of the AC or the BS increases, the quantities of ions adsorbed per gram decrease. The maximum pH of adsorption for the AC was found to be pH=1, while it was found to be pH=4 for the BS. The Freundlich model indicated that the adsorption of copper ions by the Indian jujube is linear while the Temkin and Dubinin-Kagana-Radushkevich models described the adsorption as a physical reaction. It was finally observed that the adsorption of copper ions by the AC and the BS from Indian jujube seed hulls influenced by the addition of some concentration of NaCl.

scholarly journals Fruit properties during the harvest period of eleven Indian jujube (Ziziphus mauritiana Lamk.) cultivars

2021 ◽  
Author(s):  
Mahmoud Abdel-Sattar ◽  
Khalid F. Almutairi ◽  
Adel M. Al-Saif ◽  
Khaled A. Ahmed
Keyword(s):  
Ziziphus Mauritiana ◽  
Indian Jujube

Adsorption of 3-aminophenol and resorcinol on avocado seed activated carbon: Mathematical modelling, thermodynamic study and description of adsorbent performance

2021 ◽  
pp. 116952
Author(s):  
Lotfi Sellaoui ◽  
Amira Yazidi ◽  
Sonia Taamalli ◽  
Adrián Bonilla-Petriciolet ◽  
Florent Louis ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Mathematical Modelling ◽  
Thermodynamic Study ◽  
Avocado Seed
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