Chemical modification of Aloe vera leaf hydrogel for efficient cadmium-removal from spiked high-hardness groundwater

Irfan，Jaffar1; Ali，Arshad1; Hussain，Muhammad Ajaz2; Abbas，Azhar1; Haseeb，Muhammad Tahir3; Naeem-ul-Hassan，Muhammad1; Azhar，Irfan4; Hussain，Syed Zajif5; Hussain，Irshad5

2024-02-01

10.1016/j.ijbiomac.2023.128879

International Journal of Biological Macromolecules   影响因子和分区

0141-8130

1879-0003

Herein, the hydrogel from the leaf of the Aloe vera plant (ALH) was succinylated (SALH) and saponified (NaSALH). The FTIR, solid-state CP/MAS C NMR, and SEM-EDX spectroscopic analyses witnessed the formation of SALH and NaSALH from ALH. The pH for NaSALH was found to be 4.90, indicating the presence of −ve charge on its surface. The Cd sorption efficiency of NaSALH was found to be dependent on pH, NaALH dose, Cd concentration, contact time, and temperature. The maximum Cd removal from DW and HGW was found to be 227.27 and 212.77 mg g according to the Langmuir isothermal model (>0.99) at pH of 6, NaSALH dose of 40 mg g, Cd concentration of 90 mg L, contact time of 30 min, and temperature of 298 K. The kinetic analysis of Cd sorption data witnessed that the Cd removal by chemisorption mechanism and followed pseudo-second-order kinetics (>0.99). The −ve values of ΔG° and ΔH° assessed the spontaneous and exothermic nature of sorption of Cd by NaSALH. The regeneration and sorption/desorption studies indicated that the sorbent NaSALH is regenerable.

Aloe vera hydrogel Cadmium uptake Chemisorption Esterification Langmuir isotherm Regeneration

SCI ; EI

英语

其他

BIOLOGY & BIOCHEMISTRY

2-s2.0-85182273612

Scopus

1.Institute of Chemistry,University of Sargodha,Sargodha,40100,Pakistan
2.Centre for Organic Chemistry,School of Chemistry,University of the Punjab,Lahore,54590,Pakistan
3.College of Pharmacy,University of Sargodha,Sargodha,40100,Pakistan
4.Department of Chemistry,College of Science,Southern University of Science and Technology,Shenzhen,518055,China
5.Department of Chemistry,SBA School of Science & Engineering,Lahore University of Management Sciences,Lahore Cantt.,54792,Pakistan

Irfan，Jaffar,Ali，Arshad,Hussain，Muhammad Ajaz,et al. Chemical modification of Aloe vera leaf hydrogel for efficient cadmium-removal from spiked high-hardness groundwater[J]. International Journal of Biological Macromolecules,2024,259.

Irfan，Jaffar.,Ali，Arshad.,Hussain，Muhammad Ajaz.,Abbas，Azhar.,Haseeb，Muhammad Tahir.,...&Hussain，Irshad.(2024).Chemical modification of Aloe vera leaf hydrogel for efficient cadmium-removal from spiked high-hardness groundwater.International Journal of Biological Macromolecules,259.

Irfan，Jaffar,et al."Chemical modification of Aloe vera leaf hydrogel for efficient cadmium-removal from spiked high-hardness groundwater".International Journal of Biological Macromolecules 259(2024).