Removal characteristics of copper by marine macro-algae-derived chars

Hye Jung Cho; Kitae Baek; Jong Ki Jeon; Sung Hoon Park; Dong Jin Suh; Young Kwon Park

doi:10.1016/j.cej.2012.11.123

Removal characteristics of copper by marine macro-algae-derived chars

Hye Jung Cho
, Kitae Baek
, Jong Ki Jeon
, Sung Hoon Park
, Dong Jin Suh
, Young Kwon Park^*

^*Corresponding author for this work

Environmental Engineering

University of Seoul
Kongju National University
Sunchon National University
Korea Institute of Science and Technology

Research output: Contribution to journal › Journal article › peer-review

76 Scopus citations

Abstract

The char derived from the fast pyrolysis of macro-algae biomass, a brown alga Undaria pinnatifida, proved to be useful for the removal or recovery of copper from aqueous solutions. Even at a low dose of 0.1. g. char/L, a high adsorption capacity was obtained. Physical activation with steam enhanced the adsorption of Cu, but chemical activation with a KOH solution decreased the adsorption capacity. A pseudo-second order kinetic model was used to explain the adsorption kinetics. The physically-activated char showed a Langmuir type of isotherm, and had a maximum adsorption capacity of 125.85. mg. Cu/g. Based on the adsorption capacity, even at a low copper concentration, the char derived from the fast pyrolysis of U. pinnatifida is a valuable adsorbent for recovering copper from aqueous solutions.

Original language	English
Pages (from-to)	205-211
Number of pages	7
Journal	Chemical Engineering Journal
Volume	217
DOIs	https://doi.org/10.1016/j.cej.2012.11.123
State	Published - 2013.02.1

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Adsorption
Char
Cu
Ion exchange
Macro-algae
Pyrolysis
Undaria pinnatifida

Quacquarelli Symonds(QS) Subject Topics

Environmental Sciences
Engineering - Mechanical
Engineering - Petroleum
Engineering - Chemical
Chemistry

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10.1016/j.cej.2012.11.123

Cite this

@article{a59b1a27976f42d6add49695d72cba2f,

title = "Removal characteristics of copper by marine macro-algae-derived chars",

abstract = "The char derived from the fast pyrolysis of macro-algae biomass, a brown alga Undaria pinnatifida, proved to be useful for the removal or recovery of copper from aqueous solutions. Even at a low dose of 0.1. g. char/L, a high adsorption capacity was obtained. Physical activation with steam enhanced the adsorption of Cu, but chemical activation with a KOH solution decreased the adsorption capacity. A pseudo-second order kinetic model was used to explain the adsorption kinetics. The physically-activated char showed a Langmuir type of isotherm, and had a maximum adsorption capacity of 125.85. mg. Cu/g. Based on the adsorption capacity, even at a low copper concentration, the char derived from the fast pyrolysis of U. pinnatifida is a valuable adsorbent for recovering copper from aqueous solutions.",

keywords = "Adsorption, Char, Cu, Ion exchange, Macro-algae, Pyrolysis, Undaria pinnatifida",

author = "Cho, \{Hye Jung\} and Kitae Baek and Jeon, \{Jong Ki\} and Park, \{Sung Hoon\} and Suh, \{Dong Jin\} and Park, \{Young Kwon\}",

year = "2013",

month = feb,

day = "1",

doi = "10.1016/j.cej.2012.11.123",

language = "English",

volume = "217",

pages = "205--211",

journal = "Chemical Engineering Journal",

issn = "1385-8947",

}

TY - JOUR

T1 - Removal characteristics of copper by marine macro-algae-derived chars

AU - Cho, Hye Jung

AU - Baek, Kitae

AU - Jeon, Jong Ki

AU - Park, Sung Hoon

AU - Suh, Dong Jin

AU - Park, Young Kwon

PY - 2013/2/1

Y1 - 2013/2/1

N2 - The char derived from the fast pyrolysis of macro-algae biomass, a brown alga Undaria pinnatifida, proved to be useful for the removal or recovery of copper from aqueous solutions. Even at a low dose of 0.1. g. char/L, a high adsorption capacity was obtained. Physical activation with steam enhanced the adsorption of Cu, but chemical activation with a KOH solution decreased the adsorption capacity. A pseudo-second order kinetic model was used to explain the adsorption kinetics. The physically-activated char showed a Langmuir type of isotherm, and had a maximum adsorption capacity of 125.85. mg. Cu/g. Based on the adsorption capacity, even at a low copper concentration, the char derived from the fast pyrolysis of U. pinnatifida is a valuable adsorbent for recovering copper from aqueous solutions.

AB - The char derived from the fast pyrolysis of macro-algae biomass, a brown alga Undaria pinnatifida, proved to be useful for the removal or recovery of copper from aqueous solutions. Even at a low dose of 0.1. g. char/L, a high adsorption capacity was obtained. Physical activation with steam enhanced the adsorption of Cu, but chemical activation with a KOH solution decreased the adsorption capacity. A pseudo-second order kinetic model was used to explain the adsorption kinetics. The physically-activated char showed a Langmuir type of isotherm, and had a maximum adsorption capacity of 125.85. mg. Cu/g. Based on the adsorption capacity, even at a low copper concentration, the char derived from the fast pyrolysis of U. pinnatifida is a valuable adsorbent for recovering copper from aqueous solutions.

KW - Adsorption

KW - Char

KW - Cu

KW - Ion exchange

KW - Macro-algae

KW - Pyrolysis

KW - Undaria pinnatifida

UR - https://www.scopus.com/pages/publications/84871552641

U2 - 10.1016/j.cej.2012.11.123

DO - 10.1016/j.cej.2012.11.123

M3 - Journal article

AN - SCOPUS:84871552641

SN - 1385-8947

VL - 217

SP - 205

EP - 211

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Removal characteristics of copper by marine macro-algae-derived chars

Abstract

UN SDGs

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

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