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Efficient activation of intercalated persulfate via a composite of reduced graphene oxide and layered double hydroxide.
J Hazard Mater. 2020 05 05; 389:122051.JH

Abstract

Efficient activation of peroxydisulfate (PDS, S2O82-) was achieved in this study by a hybrid of reduced graphene oxide (rGO) and layered double hydroxide (LDH). The peroxydisulfate was intercalated into the interlayers of LDH that was combined with rGO. This sample contributed to 92.4 % of phenol (PhOH) removal at 25 °C with a PDS loading amount of 0.4 mmol/g, which is better than its LDH-PDS counterpart. A high activation of PDS in rGO/LDH-PDS was also observed during the oxidation of 4-bromophenol (4-BrPhOH), 2,4-dibromophenol (2, 4-BrPhOH), 2,6-dibromophenol (2, 6-BrPhOH) and bisphenol A (BPA). As a redox reaction of PDS in LDH, this result determined that the composite of rGO/LDH caused more PDS to be activated than LDH. As the defective rGO sites activated the PDS on the surface or edges of LDH layers, the breaking of the OO bond in PDS generated SO4·- radicals from intercalated peroxydisulfate. This result was supported by the radical scavenger experiment, electron paramagnetic resonance measurements, and the increased number of oxygen functional groups in the reacted rGO. Our work thus provided a novel strategy for PDS activation to use in environmental remediation.

Authors+Show Affiliations

School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China. Electronic address: huangxin2008@shu.edu.cn.School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.School of Economics, Shanghai University, Shanghai 200444, China. Electronic address: jizhi.zhou@shu.edu.cn.School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China.State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

32000123

Citation

Huang, Xin, et al. "Efficient Activation of Intercalated Persulfate Via a Composite of Reduced Graphene Oxide and Layered Double Hydroxide." Journal of Hazardous Materials, vol. 389, 2020, p. 122051.
Huang X, Su Q, Han S, et al. Efficient activation of intercalated persulfate via a composite of reduced graphene oxide and layered double hydroxide. J Hazard Mater. 2020;389:122051.
Huang, X., Su, Q., Han, S., Zhou, J., Qian, G., & Gao, N. (2020). Efficient activation of intercalated persulfate via a composite of reduced graphene oxide and layered double hydroxide. Journal of Hazardous Materials, 389, 122051. https://doi.org/10.1016/j.jhazmat.2020.122051
Huang X, et al. Efficient Activation of Intercalated Persulfate Via a Composite of Reduced Graphene Oxide and Layered Double Hydroxide. J Hazard Mater. 2020 05 5;389:122051. PubMed PMID: 32000123.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Efficient activation of intercalated persulfate via a composite of reduced graphene oxide and layered double hydroxide. AU - Huang,Xin, AU - Su,Qingqing, AU - Han,Shaohong, AU - Zhou,Jizhi, AU - Qian,Guangren, AU - Gao,Naiyun, Y1 - 2020/01/10/ PY - 2019/09/02/received PY - 2020/01/07/revised PY - 2020/01/07/accepted PY - 2020/1/31/pubmed PY - 2020/1/31/medline PY - 2020/1/31/entrez KW - Graphene KW - Layered double hydroxide KW - Peroxydisulfate KW - Sulfate radical SP - 122051 EP - 122051 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 389 N2 - Efficient activation of peroxydisulfate (PDS, S2O82-) was achieved in this study by a hybrid of reduced graphene oxide (rGO) and layered double hydroxide (LDH). The peroxydisulfate was intercalated into the interlayers of LDH that was combined with rGO. This sample contributed to 92.4 % of phenol (PhOH) removal at 25 °C with a PDS loading amount of 0.4 mmol/g, which is better than its LDH-PDS counterpart. A high activation of PDS in rGO/LDH-PDS was also observed during the oxidation of 4-bromophenol (4-BrPhOH), 2,4-dibromophenol (2, 4-BrPhOH), 2,6-dibromophenol (2, 6-BrPhOH) and bisphenol A (BPA). As a redox reaction of PDS in LDH, this result determined that the composite of rGO/LDH caused more PDS to be activated than LDH. As the defective rGO sites activated the PDS on the surface or edges of LDH layers, the breaking of the OO bond in PDS generated SO4·- radicals from intercalated peroxydisulfate. This result was supported by the radical scavenger experiment, electron paramagnetic resonance measurements, and the increased number of oxygen functional groups in the reacted rGO. Our work thus provided a novel strategy for PDS activation to use in environmental remediation. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/32000123/Efficient_activation_of_intercalated_persulfate_via_a_composite_of_reduced_graphene_oxide_and_layered_double_hydroxide_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(20)30037-6 DB - PRIME DP - Unbound Medicine ER -
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