Facile Synthesis of Acyl-Hydrazone Composites Based on Hydrazide-Modified Formylated Polystyrene for Effective Removal of Heavy Metal Ions and Sulfides from Water DOI
Tao Liu, Zhengfeng Xie, Tianyi Zhang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 17(1), P. 1049 - 1063

Published: Dec. 19, 2024

In this study, waste polystyrene was modified and upgraded to prepare formylated polystyrene, the acetyl hydrazone (LT-HPA) synthesized by condensation with polymethyl-propionyl-hydrazine. It is proven that modification of adsorption material successful various characterization methods. subsequent pollutant removal pH, mass, concentration, contact time, salt ion interference were investigated. The optimal pH for Cu(II) sulfide 5 11, respectively, mass adsorbent 1 g/L. found maximum rate Cu (II) 231.51 mg/g. equilibrium time less than 40 min. This due good activity acyl hydrazide groups on skeleton through coordination. desulfurization amount in 60 min 370.21 mg/g, which mainly caused oxidation sulfides surface oxidizing groups. Isotherm kinetic studies show processes are consistent Langmuir model pseudo-second-order model. Thermodynamic parameters a spontaneous endothermic process. mechanism chemical adsorption, supplemented physical adsorption. After 10 regenerated adsorption/desorption cycles, rates remained above 85%, indicating polystyrenesulfonate acetylhydrazone materials have reusability. addition, has thermal stability, resistance, environmental friendliness. summary, application prospect copper(II) provides fresh way upgrading polystyrene.

Language: Английский

Efficient adsorption of Cu2+ using ZnCo bimetallic organic frameworks loaded cellulose-based modified aerogel: Adsorption behavior and mechanism DOI
C. F. Xu,

Qi Liu,

Yawen Han

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: unknown, P. 120877 - 120877

Published: Jan. 1, 2025

Language: Английский

Citations

3
Highly efficient MnOX/TiO2@NH2-ZIF-8 composite for the removal of toxic textile dyes from water DOI

Amina Akter Elora,

Tirtha Sarker,

Ishmam Tahmid

et al.

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136882 - 136882

Published: April 1, 2025

Language: Английский

Citations

0
Controllable Synthesis of Magnetic Composite Derived from MIL-88D and Study on Adsorption Properties of Cu2+ DOI Creative Commons

Zhongyuan Zheng,

Jinshan Yu,

Ling Jiang

et al.

Magnetochemistry, Journal Year: 2024, Volume and Issue: 10(9), P. 64 - 64

Published: Aug. 31, 2024

In this paper, MIL-88D (Fe) with spindle shape was prepared by the hydrothermal synthesis method, a metal oxide new structure obtained calcination at different temperatures as precursor, and magnetic iron composite successfully. At same time, it used an adsorption material for of heavy ions Cu2+. The influence initial pH value time on effect investigated, kinetics isotherm were further fitted, mechanism preliminarily analyzed. results show that composites have good capacity is important parameter affects effect. Cu2+ reached equilibrium in 30 min. conforms to second-order reaction Langmuir equation, which indicates process mainly occurs through chemisorption typical single-molecular-layer adsorption.

Language: Английский

Citations

0
Facile Synthesis of Acyl-Hydrazone Composites Based on Hydrazide-Modified Formylated Polystyrene for Effective Removal of Heavy Metal Ions and Sulfides from Water DOI
Tao Liu, Zhengfeng Xie, Tianyi Zhang

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 17(1), P. 1049 - 1063

Published: Dec. 19, 2024

In this study, waste polystyrene was modified and upgraded to prepare formylated polystyrene, the acetyl hydrazone (LT-HPA) synthesized by condensation with polymethyl-propionyl-hydrazine. It is proven that modification of adsorption material successful various characterization methods. subsequent pollutant removal pH, mass, concentration, contact time, salt ion interference were investigated. The optimal pH for Cu(II) sulfide 5 11, respectively, mass adsorbent 1 g/L. found maximum rate Cu (II) 231.51 mg/g. equilibrium time less than 40 min. This due good activity acyl hydrazide groups on skeleton through coordination. desulfurization amount in 60 min 370.21 mg/g, which mainly caused oxidation sulfides surface oxidizing groups. Isotherm kinetic studies show processes are consistent Langmuir model pseudo-second-order model. Thermodynamic parameters a spontaneous endothermic process. mechanism chemical adsorption, supplemented physical adsorption. After 10 regenerated adsorption/desorption cycles, rates remained above 85%, indicating polystyrenesulfonate acetylhydrazone materials have reusability. addition, has thermal stability, resistance, environmental friendliness. summary, application prospect copper(II) provides fresh way upgrading polystyrene.

Language: Английский

Citations

0