Porous biochar composite assembled with ternary needle-like iron-manganese-sulphur hybrids for high-efficiency lead removal

Fan Yang; Shuaishuai Zhang; Dong Wan Cho; Qing Du; Jingpeng Song; Daniel C.W. Tsang

doi:10.1016/j.biortech.2018.10.068

Porous biochar composite assembled with ternary needle-like iron-manganese-sulphur hybrids for high-efficiency lead removal

Fan Yang, Shuaishuai Zhang, Dong Wan Cho, Qing Du, Jingpeng Song, Daniel C.W. Tsang

Research output: Journal article publication › Journal article › Academic research › peer-review

90 Citations (Scopus)

Abstract

Hierarchical porous biochar derived from corn straw containing ternary needle-like iron-manganese-sulphur composites (Fe-Mn-S@HCS) are fabricated, and their physicochemical characteristics and performance for Pb removal were examined in detail. Introduction of Mn (transition metal) into Fe-biochar composites can effectively alter the chemical state of Fe; simultaneous doping with S can enhance cation exchange for Pb removal. High uptake of Pb by Fe-Mn-S@HCS in a short time period was observed with the adsorption capacity of 181.5 mg g⁻¹ and the pseudo-second-order rate constant of 0.075 g mg^-1 h⁻¹. Complexation, reduction, and precipitation were found to be involved in the Pb removal by Fe-Mn-S@HCS based on the results of HRTEM, XPS, and XRD analyses. This study demonstrated the feasibility of Fe-Mn-S biochar composites for high-efficiency Pb removal from aqueous solution.

Original language	English
Pages (from-to)	415-420
Number of pages	6
Journal	Bioresource Technology
Volume	272
DOIs	https://doi.org/10.1016/j.biortech.2018.10.068
Publication status	Published - Jan 2019

Keywords

Engineered biochar
Green/sustainable remediation
Lead complexation/precipitation
Metal-biochar composites
Waste valorization

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

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

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10.1016/j.biortech.2018.10.068

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title = "Porous biochar composite assembled with ternary needle-like iron-manganese-sulphur hybrids for high-efficiency lead removal",

abstract = "Hierarchical porous biochar derived from corn straw containing ternary needle-like iron-manganese-sulphur composites (Fe-Mn-S@HCS) are fabricated, and their physicochemical characteristics and performance for Pb removal were examined in detail. Introduction of Mn (transition metal) into Fe-biochar composites can effectively alter the chemical state of Fe; simultaneous doping with S can enhance cation exchange for Pb removal. High uptake of Pb by Fe-Mn-S@HCS in a short time period was observed with the adsorption capacity of 181.5 mg g−1 and the pseudo-second-order rate constant of 0.075 g mg-1 h−1. Complexation, reduction, and precipitation were found to be involved in the Pb removal by Fe-Mn-S@HCS based on the results of HRTEM, XPS, and XRD analyses. This study demonstrated the feasibility of Fe-Mn-S biochar composites for high-efficiency Pb removal from aqueous solution.",

keywords = "Engineered biochar, Green/sustainable remediation, Lead complexation/precipitation, Metal-biochar composites, Waste valorization",

author = "Fan Yang and Shuaishuai Zhang and Cho, {Dong Wan} and Qing Du and Jingpeng Song and Tsang, {Daniel C.W.}",

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AU - Yang, Fan

AU - Zhang, Shuaishuai

AU - Cho, Dong Wan

AU - Du, Qing

AU - Song, Jingpeng

AU - Tsang, Daniel C.W.

PY - 2019/1

Y1 - 2019/1

N2 - Hierarchical porous biochar derived from corn straw containing ternary needle-like iron-manganese-sulphur composites (Fe-Mn-S@HCS) are fabricated, and their physicochemical characteristics and performance for Pb removal were examined in detail. Introduction of Mn (transition metal) into Fe-biochar composites can effectively alter the chemical state of Fe; simultaneous doping with S can enhance cation exchange for Pb removal. High uptake of Pb by Fe-Mn-S@HCS in a short time period was observed with the adsorption capacity of 181.5 mg g−1 and the pseudo-second-order rate constant of 0.075 g mg-1 h−1. Complexation, reduction, and precipitation were found to be involved in the Pb removal by Fe-Mn-S@HCS based on the results of HRTEM, XPS, and XRD analyses. This study demonstrated the feasibility of Fe-Mn-S biochar composites for high-efficiency Pb removal from aqueous solution.

AB - Hierarchical porous biochar derived from corn straw containing ternary needle-like iron-manganese-sulphur composites (Fe-Mn-S@HCS) are fabricated, and their physicochemical characteristics and performance for Pb removal were examined in detail. Introduction of Mn (transition metal) into Fe-biochar composites can effectively alter the chemical state of Fe; simultaneous doping with S can enhance cation exchange for Pb removal. High uptake of Pb by Fe-Mn-S@HCS in a short time period was observed with the adsorption capacity of 181.5 mg g−1 and the pseudo-second-order rate constant of 0.075 g mg-1 h−1. Complexation, reduction, and precipitation were found to be involved in the Pb removal by Fe-Mn-S@HCS based on the results of HRTEM, XPS, and XRD analyses. This study demonstrated the feasibility of Fe-Mn-S biochar composites for high-efficiency Pb removal from aqueous solution.

KW - Engineered biochar

KW - Green/sustainable remediation

KW - Lead complexation/precipitation

KW - Metal-biochar composites

KW - Waste valorization

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DO - 10.1016/j.biortech.2018.10.068

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SN - 0960-8524

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JO - Bioresource Technology

JF - Bioresource Technology

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Porous biochar composite assembled with ternary needle-like iron-manganese-sulphur hybrids for high-efficiency lead removal

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

More information

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