Sequent Adsorption of phosphate ions by Copper ions Adsorbed on Tripolyphosphate Chitosan

被引：2

作者：

Nguyen, Thai Anh ^{[1
,2
]}

Bui, Huu Trung ^{[3
]}

Dang, Vu Bich Hanh ^{[1
,2
]}

Trinh, Thi Bich Huyen ^{[1
,2
]}

Le, Thi Huynh Tram ^{[1
,2
]}

Nguyen, Vinh Tien ^{[3
]}

机构：

[1] Vietnam Natl Univ Ho Chi Minh City, Ho Chi Minh City, Vietnam

[2] Ho Chi Minh City Univ Technol HCMUT, Fac Environm & Nat Resources, 268 Ly Thuong Kiet St,Dist 10, Ho Chi Minh City, Vietnam

[3] Ho Chi Minh City Univ Technol & Educ, Fac Chem & Food Technol, 01 Vo Ngan St, Ho Chi Minh City, Vietnam

来源：

ORIENTAL JOURNAL OF CHEMISTRY | 2023年 / 39卷 / 02期

关键词：

Sequent adsorption; Chitosan; Copper; Phosphate; STPP; AQUEOUS-SOLUTIONS; REMOVAL; EQUILIBRIUM; CU(II); KINETICS; BEADS;

D O I：

10.13005/ojc/390209

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

In this study, we successfully crosslinked chitosan using STPP and produced chitosan beads to adsorb copper ions and subsequently phosphate ions from aqueous solutions. The optimal concentrations of chitosan (2%w/v) and STPP (7.5%w/v) during chitosan beads preparation and the optimal pH of 5.0 during adsorption were determined. Several adsorption models, including pseudo-first-order, pseudo-second-order, Langmuir, and Freundlich models, were used to evaluate the static adsorption experimental data. Moreover, the chitosan beads were applied in a dynamic adsorption column and several models including Bohart-Adam, Thomas, Yoon-Nelson, and Clark models were used to describe the system. This study showed that after adsorbing heavy metal ions, chitosan-STPP beads can be used for further adsorption of toxic anions from wastewater.

引用

页码：295 / 302

页数：8

共 23 条

[1] Removal of hexavalent chromium from wastewater using a new composite chitosan biosorbent [J].