Ca-Al Layered Double Hydroxides Pillared H4[α-PW12O40]•nH2O as Adsorbent Material for Cadmium (II) Removal from Aqueous Solution

Indonesian Journal of Material Research, Journal Year: 2024, Volume and Issue: 2(2), P. 56 - 60

Published: July 26, 2024

Heavy metals in the environment can have a detrimental impact on human health. This study successfully used new adsorbent material, specifically layered double hydroxide pillared with keggin polyoxometalate H4[α-PW12O40]•nH2O (Ca-Al/POM), to effectively remove cadmium (II) from aqueous solution. The Ca-Al/POM has been thoroughly analyzed using X-ray diffraction and FT-IR. findings showed an increase maximum adsorption capacity for when Ca-Al LDH intercalated POM. of equilibrium isotherms that removed fit Freundlich isotherm model. In addition, kinetics followed pseudo second-order

Language: Английский

Development of HDTMA-modified Philippine Natural Zeolite (PNZ) for sulfamethoxazole adsorption

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(11), P. 115505 - 115505

Published: Nov. 1, 2024

Abstract The surface of Philippine natural zeolites (PNZs) was modified using the surfactant hexadecyltrimethylammonium chloride (HDTMA-Cl) to improve its adsorption capacity sulfamethoxazole (SMX), a persistent organic pollutant and emerging contaminant. PNZs were with HDTMA based on their 100% 200% external cation exchange (ECEC) form monolayer bilayer HDTMA–modified (MHZ & BHZ). unmodified (UZs) surfactant–modified (SMNZs) characterized Fourier Transform Infrared Spectroscopy, Thermogravimetric Analysis-Derivative Thermogravimetry, Scanning Electron Microscopy Energy Dispersive x-ray X-Ray Diffraction confirm modification HDTMA. SMX UZ SMNZs fitted isotherm kinetic models. It determined that all showed high degree linearity relative Langmuir, Freundlich, Temkin maximum MHZ BHZ calculated be 3.685 mg g −1 13.034 , respectively, exhibiting 1.6 times 5.5 more improved than UZ. Kinetic models SMNZ adhered pseudo-second order model. results this study highlight promising increased SMNZs.

Language: Английский

Efficient removal of pharmaceutical contaminants using laccase immobilized on activated coal derived from cashew nut shells: Thermodynamic, kinetic and calorimetry study

Sustainable Chemistry and Pharmacy, Journal Year: 2024, Volume and Issue: 43, P. 101868 - 101868

Published: Dec. 6, 2024

Language: Английский