Microalgae-derived carbon quantum dots mediated formation of metal sulfide nano-adsorbents with exceptional cadmium removal performance

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

Standard

Microalgae-derived carbon quantum dots mediated formation of metal sulfide nano-adsorbents with exceptional cadmium removal performance. / Wang, Chen; Bi, Lei; Liu, Jingzhang; Huang, Bang; Wang, Fengbang; Zhang, Yichang; Yao, Chongchao; Pan, Gang; Song, Maoyong.

In: Journal of Colloid and Interface Science, Vol. 629, No. Part A, 2023, p. 994-1002.

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

Harvard

Wang, C, Bi, L, Liu, J, Huang, B, Wang, F, Zhang, Y, Yao, C, Pan, G & Song, M 2023, 'Microalgae-derived carbon quantum dots mediated formation of metal sulfide nano-adsorbents with exceptional cadmium removal performance', Journal of Colloid and Interface Science, vol. 629, no. Part A, pp. 994-1002. https://doi.org/10.1016/j.jcis.2022.08.188

APA

Wang, C., Bi, L., Liu, J., Huang, B., Wang, F., Zhang, Y., Yao, C., Pan, G., & Song, M. (2023). Microalgae-derived carbon quantum dots mediated formation of metal sulfide nano-adsorbents with exceptional cadmium removal performance. Journal of Colloid and Interface Science, 629(Part A), 994-1002. https://doi.org/10.1016/j.jcis.2022.08.188

Vancouver

Wang C, Bi L, Liu J, Huang B, Wang F, Zhang Y et al. Microalgae-derived carbon quantum dots mediated formation of metal sulfide nano-adsorbents with exceptional cadmium removal performance. Journal of Colloid and Interface Science. 2023;629(Part A):994-1002. https://doi.org/10.1016/j.jcis.2022.08.188

Author

Wang, Chen ; Bi, Lei ; Liu, Jingzhang ; Huang, Bang ; Wang, Fengbang ; Zhang, Yichang ; Yao, Chongchao ; Pan, Gang ; Song, Maoyong. / Microalgae-derived carbon quantum dots mediated formation of metal sulfide nano-adsorbents with exceptional cadmium removal performance. In: Journal of Colloid and Interface Science. 2023 ; Vol. 629, No. Part A. pp. 994-1002.

Bibtex

@article{1885d8bb8837468fbe471c296750529b,
title = "Microalgae-derived carbon quantum dots mediated formation of metal sulfide nano-adsorbents with exceptional cadmium removal performance",
abstract = "Metal sulfides are regarded as efficient scavengers for heavy metals. However, the heavy metal adsorption capacity of metal sulfides is far from its theoretical values due to the insufficient exposure of adsorption sites. Surface modification of metal sulfides is considered one of the most effective strategies for improving heavy metal removal performance. Here, microalgae-derived carbon quantum dots (CQDs) were used as a green modifier for mediating nano-MnS/FeS formation to enhance Cd2+ removal. With the addition of 1 wt% CQDs, the Cd2+ adsorption capacity of 1 %CQDs-MnS reached 481 mg/g at 25 °C and 648.6 mg/g at 45 °C, which surpassed most of the previously reported metal sulfides. Furthermore, the CQDs-modified MnS displayed a better Cd2+ removal capacity than the commercial modifier sodium alginate. The mechanism analysis suggested that decreasing the particle size to expose more adsorption sites and providing additional chelating sites derived from the CQDs are two main reasons why CQDs enhance the Cd2+ adsorption capacity of metal sulfides. This study presents an exceptional cadmium nano-adsorbent of 1 %CQDs-MnS and provides a new perspective on the enhancement of heavy metal removal by using CQDs as a promising and universal green modifier that mediates the formation of metal sulfides.",
keywords = "Adsorption of heavy metals, Carbon quantum dots, FeS, MnS, Surface modification",
author = "Chen Wang and Lei Bi and Jingzhang Liu and Bang Huang and Fengbang Wang and Yichang Zhang and Chongchao Yao and Gang Pan and Maoyong Song",
note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Inc.",
year = "2023",
doi = "10.1016/j.jcis.2022.08.188",
language = "English",
volume = "629",
pages = "994--1002",
journal = "Journal of Colloid and Interface Science",
issn = "0021-9797",
publisher = "Academic Press",
number = "Part A",

}

RIS

TY - JOUR

T1 - Microalgae-derived carbon quantum dots mediated formation of metal sulfide nano-adsorbents with exceptional cadmium removal performance

AU - Wang, Chen

AU - Bi, Lei

AU - Liu, Jingzhang

AU - Huang, Bang

AU - Wang, Fengbang

AU - Zhang, Yichang

AU - Yao, Chongchao

AU - Pan, Gang

AU - Song, Maoyong

N1 - Publisher Copyright: © 2022 Elsevier Inc.

PY - 2023

Y1 - 2023

N2 - Metal sulfides are regarded as efficient scavengers for heavy metals. However, the heavy metal adsorption capacity of metal sulfides is far from its theoretical values due to the insufficient exposure of adsorption sites. Surface modification of metal sulfides is considered one of the most effective strategies for improving heavy metal removal performance. Here, microalgae-derived carbon quantum dots (CQDs) were used as a green modifier for mediating nano-MnS/FeS formation to enhance Cd2+ removal. With the addition of 1 wt% CQDs, the Cd2+ adsorption capacity of 1 %CQDs-MnS reached 481 mg/g at 25 °C and 648.6 mg/g at 45 °C, which surpassed most of the previously reported metal sulfides. Furthermore, the CQDs-modified MnS displayed a better Cd2+ removal capacity than the commercial modifier sodium alginate. The mechanism analysis suggested that decreasing the particle size to expose more adsorption sites and providing additional chelating sites derived from the CQDs are two main reasons why CQDs enhance the Cd2+ adsorption capacity of metal sulfides. This study presents an exceptional cadmium nano-adsorbent of 1 %CQDs-MnS and provides a new perspective on the enhancement of heavy metal removal by using CQDs as a promising and universal green modifier that mediates the formation of metal sulfides.

AB - Metal sulfides are regarded as efficient scavengers for heavy metals. However, the heavy metal adsorption capacity of metal sulfides is far from its theoretical values due to the insufficient exposure of adsorption sites. Surface modification of metal sulfides is considered one of the most effective strategies for improving heavy metal removal performance. Here, microalgae-derived carbon quantum dots (CQDs) were used as a green modifier for mediating nano-MnS/FeS formation to enhance Cd2+ removal. With the addition of 1 wt% CQDs, the Cd2+ adsorption capacity of 1 %CQDs-MnS reached 481 mg/g at 25 °C and 648.6 mg/g at 45 °C, which surpassed most of the previously reported metal sulfides. Furthermore, the CQDs-modified MnS displayed a better Cd2+ removal capacity than the commercial modifier sodium alginate. The mechanism analysis suggested that decreasing the particle size to expose more adsorption sites and providing additional chelating sites derived from the CQDs are two main reasons why CQDs enhance the Cd2+ adsorption capacity of metal sulfides. This study presents an exceptional cadmium nano-adsorbent of 1 %CQDs-MnS and provides a new perspective on the enhancement of heavy metal removal by using CQDs as a promising and universal green modifier that mediates the formation of metal sulfides.

KW - Adsorption of heavy metals

KW - Carbon quantum dots

KW - FeS

KW - MnS

KW - Surface modification

U2 - 10.1016/j.jcis.2022.08.188

DO - 10.1016/j.jcis.2022.08.188

M3 - Journal article

C2 - 36152623

AN - SCOPUS:85138448989

VL - 629

SP - 994

EP - 1002

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

SN - 0021-9797

IS - Part A

ER -

ID: 323194608