Significant improvement on selectivity and capacity of glycine-modified FeCo-layered double hydroxides in the removal of As (V) from polluted water

Xiaofeng Shi; Junmao Hong; Le Kang; Gang Song; Jing Lin; Xianmin Mai; Nithesh Naik; Zhanhu Guo

doi:10.1016/j.chemosphere.2021.130943

Significant improvement on selectivity and capacity of glycine-modified FeCo-layered double hydroxides in the removal of As (V) from polluted water

Xiaofeng Shi^*
, Junmao Hong
, Le Kang
, Gang Song
, Jing Lin
, Xianmin Mai
, Nithesh Naik
, Zhanhu Guo

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

A series of novel Fe/Co layered double hydroxides modified with glycine (named as FeCo-LDH@G) were prepared and served as high-performance adsorbents for As (V). With a Fe/Co mole ratio of 1:1, the Fe_0·02Co_0.02-LDH@G adsorbents achieved significant improvements on the adsorption selectivity and capacity for As (V). The As (V) adsorption by Fe_0·02Co_0.02-LDH@G follows Langmuir isotherm model and pseudo-second-order kinetics model. The maximum adsorption capacity is 820 mg g⁻¹ and the equilibrium reaches in 120 min. Under the assistance of electrochemical devices, the Fe_0·02Co_0.02-LDH@G adsorbent was regenerated and the adsorption capacity for As (V) was dropped only about 13.41% in 5 cycles. These excellent performances make Fe_0·02Co_0.02-LDH@G as promising As (V) adsorbents for commercial wastewater treatments.

Original language	English
Article number	130943
Journal	Chemosphere
Volume	281
DOIs	https://doi.org/10.1016/j.chemosphere.2021.130943
Publication status	Published - 10-2021

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

All Science Journal Classification (ASJC) codes

Environmental Engineering
General Chemistry
Environmental Chemistry
Pollution
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

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10.1016/j.chemosphere.2021.130943

Cite this

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title = "Significant improvement on selectivity and capacity of glycine-modified FeCo-layered double hydroxides in the removal of As (V) from polluted water",

abstract = "A series of novel Fe/Co layered double hydroxides modified with glycine (named as FeCo-LDH@G) were prepared and served as high-performance adsorbents for As (V). With a Fe/Co mole ratio of 1:1, the Fe0·02Co0.02-LDH@G adsorbents achieved significant improvements on the adsorption selectivity and capacity for As (V). The As (V) adsorption by Fe0·02Co0.02-LDH@G follows Langmuir isotherm model and pseudo-second-order kinetics model. The maximum adsorption capacity is 820 mg g−1 and the equilibrium reaches in 120 min. Under the assistance of electrochemical devices, the Fe0·02Co0.02-LDH@G adsorbent was regenerated and the adsorption capacity for As (V) was dropped only about 13.41\% in 5 cycles. These excellent performances make Fe0·02Co0.02-LDH@G as promising As (V) adsorbents for commercial wastewater treatments.",

author = "Xiaofeng Shi and Junmao Hong and Le Kang and Gang Song and Jing Lin and Xianmin Mai and Nithesh Naik and Zhanhu Guo",

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doi = "10.1016/j.chemosphere.2021.130943",

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T1 - Significant improvement on selectivity and capacity of glycine-modified FeCo-layered double hydroxides in the removal of As (V) from polluted water

AU - Shi, Xiaofeng

AU - Hong, Junmao

AU - Kang, Le

AU - Song, Gang

AU - Lin, Jing

AU - Mai, Xianmin

AU - Naik, Nithesh

AU - Guo, Zhanhu

PY - 2021/10

Y1 - 2021/10

N2 - A series of novel Fe/Co layered double hydroxides modified with glycine (named as FeCo-LDH@G) were prepared and served as high-performance adsorbents for As (V). With a Fe/Co mole ratio of 1:1, the Fe0·02Co0.02-LDH@G adsorbents achieved significant improvements on the adsorption selectivity and capacity for As (V). The As (V) adsorption by Fe0·02Co0.02-LDH@G follows Langmuir isotherm model and pseudo-second-order kinetics model. The maximum adsorption capacity is 820 mg g−1 and the equilibrium reaches in 120 min. Under the assistance of electrochemical devices, the Fe0·02Co0.02-LDH@G adsorbent was regenerated and the adsorption capacity for As (V) was dropped only about 13.41% in 5 cycles. These excellent performances make Fe0·02Co0.02-LDH@G as promising As (V) adsorbents for commercial wastewater treatments.

AB - A series of novel Fe/Co layered double hydroxides modified with glycine (named as FeCo-LDH@G) were prepared and served as high-performance adsorbents for As (V). With a Fe/Co mole ratio of 1:1, the Fe0·02Co0.02-LDH@G adsorbents achieved significant improvements on the adsorption selectivity and capacity for As (V). The As (V) adsorption by Fe0·02Co0.02-LDH@G follows Langmuir isotherm model and pseudo-second-order kinetics model. The maximum adsorption capacity is 820 mg g−1 and the equilibrium reaches in 120 min. Under the assistance of electrochemical devices, the Fe0·02Co0.02-LDH@G adsorbent was regenerated and the adsorption capacity for As (V) was dropped only about 13.41% in 5 cycles. These excellent performances make Fe0·02Co0.02-LDH@G as promising As (V) adsorbents for commercial wastewater treatments.

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UR - https://www.scopus.com/pages/publications/85108294769#tab=citedBy

U2 - 10.1016/j.chemosphere.2021.130943

DO - 10.1016/j.chemosphere.2021.130943

M3 - Article

AN - SCOPUS:85108294769

SN - 0045-6535

VL - 281

JO - Chemosphere

JF - Chemosphere

M1 - 130943

ER -

Significant improvement on selectivity and capacity of glycine-modified FeCo-layered double hydroxides in the removal of As (V) from polluted water

Abstract

UN SDGs

All Science Journal Classification (ASJC) codes

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