Cited by 388Adsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterialsIndustrial Gas Emission Control

Sorption of mercury (II) and atrazine by biochar, modified biochars and biochar based activated carbon in aqueous solution

Tan, Guangcai, Sun, Weiling, Xu, Yaru, Wang, Hongyuan, Xu, Nan·2016·Bioresource Technology

Abstract

Corn straw biochar (BC) was used as a precursor to produce Na2S modified biochar (BS), KOH modified biochar (BK) and activated carbon (AC). Experiments were conducted to compare the sorption capacity of these sorbents for aqueous Hg (II) and atrazine existed alone or as a mixture. In comparison to BC, the sorption capacity of BS, BK and AC for single Hg (II) increased by 76.95%, 32.12% and 41.72%, while that for atrazine increased by 38.66%, 46.39% and 47 times, respectively. When Hg (II) and atrazine coexisted in an aqueous solution, competitive sorption was observed on all these sorbents. Sulfur impregnation was an efficient way to enhance the Hg (II) removal due to the formation of HgS precipitate, and oxygen-containing functional groups on the sorbents also contributed to Hg (II) sorption. Activated carbon was the best sorbent for atrazine removal because of its extremely high specific surface area.

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Crossref · 10.1016/j.biortech.2016.03.147

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  • Tan et al. (2016) adsorption capacities of atrazine by biochar, Na2S modified biochar (BS), and KOH modified biochar (BK) were 1.94 mg/g, 2.69 mg/g, and 2.84 mg/g, respectively.

    “Furthermore, Tan etal. (2016) revealed the adsorption capacities of atrazine by BC, Na2S modified BC (BS), and KOH modified BC (BK) were 1.94mg/g, 2.69mg/g, and 2.84mg/g, respectively.”

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Authors
Tan, G., Sun, W., Xu, Y., Wang, H., & Xu, N.
Affiliations
  • Peking University (CN)
  • Institute of Agricultural Resources and Regional Planning (CN)
Corresponding author
  • Xu, Yaru
  • Xu, Nan
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2016-07
Volume
211
Pages
727-735
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2314554170
Cited by
388
References
36
Citations by year
2026: 21 · 2025: 40 · 2024: 36 · 2023: 44 · 2022: 55 · 2021: 48 · 2020: 48 · 2019: 44 · 2018: 32 · 2017: 15 · 2016: 5
FWCI
18.94
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Science Foundation
  • National Natural Science Foundation of China
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Engineering › Mechanical Engineering › Industrial Gas Emission Control
Keywords
biochar, corn straw biochar, potassium hydroxide modification, activated carbon, competitive adsorption, oxygen-containing functional groups, herbicide removal, heavy metal removal, aqueous solutions
MeSH terms
Adsorption, Atrazine, Charcoal, Mercury, Solutions, Water Purification

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