Succinylated Salvia spinosa hydrogel: Modification, characterization, cadmium-uptake from spiked high-hardness groundwater and statistical analysis of sorption data

Ali，Arshad1; Ajaz Hussain，Muhammmad2; Abbas，Azhar1; Tahir Haseeb，Muhammad3; Azhar，Irfan4; Muhammad，Gulzar5; Hussain，Syed Zajif6; Hussain，Irshad6; Alotaibi，Nasser F.7

2023-04-15

10.1016/j.molliq.2023.121438

JOURNAL OF MOLECULAR LIQUIDS   Impact Factor & Quartile

0167-7322

Herein, we synthesized sodium salt of succinylated Salvia spinosa hydrogel (NaS-SSH), a novel and green polysaccharide-based ion-exchanger for cadmium uptake from deionized water (DW) and spiked high-hard ground water (HGW). The S. spinosa hydrogel (SSH), succinylated SSH (S-SSH) and its sodic form (NaS-SSH) were characterized through Fourier transform infrared spectroscopy, solid-state CP/MAS C-NMR spectroscopy, scanning electron microscopy-energy dispersive spectroscopy, and thermogravimetric analysis. The surface charge on NaS-SSH was calculated by performing point of zero charge pH, i.e., pH analysis and it was found to be 4.77 ± 0.35. Cd(II) uptake efficiency of NaS-SSH was accessed on pH (1–7), sorbent dosage (10–90 mg/100 mL), initial concentration of Cd(II) ions (10–250 mg L), contact time (5–150 min), and temperature (298–338 K). Sorption data fitted well to Langmuir isothermal model and sorption maxima (Q) was calculated as 344.83 mg g for DW and 312.5 mg g for HGW and found comparable with the experimental sorption capacities. The sorption kinetics followed the pseudo-second-order kinetic model and occurred through the exchange of ions via chemisorption. Thermodynamics of the sorption process was judged through negative values of thermodynamic triplets (ΔG°, ΔH°, and ΔS°) and revealed spontaneous and exothermic in nature. Competitive studies indicated the potential of NaS-SSH for metal removal from a binary mixture of Ni(II)-Cd(II). Moreover, NaS-SSH was regenerated and could be used over several repetitive cycles. Comparing the sorption efficiency of NaS-SSH with already reported succinylated biosorbents having similar structural features, it was noted that our developed biosorpbent is more effective for Cd(II) uptake.

Cadmium uptake Chemisorption Error analysis Esterification Regeneration Salvia spinosa hydrogel

SCI

English

Others

WOS:000945208200001

CHEMISTRY

2-s2.0-85148320689

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,Government College University,Lahore,54000,Pakistan
6.Department of Chemistry,SBA School of Science & Engineering,Lahore University of Management Sciences,Lahore Cantt,54792,Pakistan
7.Chemistry Department,College of Science,Jouf University,Sakaka,72388,Saudi Arabia

Ali，Arshad,Ajaz Hussain，Muhammmad,Abbas，Azhar,et al. Succinylated Salvia spinosa hydrogel: Modification, characterization, cadmium-uptake from spiked high-hardness groundwater and statistical analysis of sorption data[J]. JOURNAL OF MOLECULAR LIQUIDS,2023,376.

Ali，Arshad.,Ajaz Hussain，Muhammmad.,Abbas，Azhar.,Tahir Haseeb，Muhammad.,Azhar，Irfan.,...&Alotaibi，Nasser F..(2023).Succinylated Salvia spinosa hydrogel: Modification, characterization, cadmium-uptake from spiked high-hardness groundwater and statistical analysis of sorption data.JOURNAL OF MOLECULAR LIQUIDS,376.

Ali，Arshad,et al."Succinylated Salvia spinosa hydrogel: Modification, characterization, cadmium-uptake from spiked high-hardness groundwater and statistical analysis of sorption data".JOURNAL OF MOLECULAR LIQUIDS 376(2023).