Journal ArticleDOI
Nanoscale zero-valent iron supported by biochars produced at different temperatures: Synthesis mechanism and effect on Cr(VI) removal.
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TLDR
The XRD revealed that the removal rate of Cr(VI) for the nZVI supported by rice straw pyrolyzed at 400 °C (RS400) was much greater than that for other supporting biochar, and the FTIR indicated that the carboxyl groups and silicon mineral within the biochar served as dual support sites for nZ VI.About:
This article is published in Environmental Pollution.The article was published on 2017-04-01. It has received 212 citations till now. The article focuses on the topics: Zerovalent iron & Hexavalent chromium.read more
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Biochar modification to enhance sorption of inorganics from water
TL;DR: This review evaluates various methods to increase the sorption efficiency of biochar including activation with steam, acids and bases and the production ofBiochar-based composites with metal oxides, carbonaceous materials, clays, organic compounds, and biofilms.
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Multifunctional iron-biochar composites for the removal of potentially toxic elements, inherent cations, and hetero-chloride from hydraulic fracturing wastewater.
Yuqing Sun,Yuqing Sun,Iris K.M. Yu,Daniel C.W. Tsang,Xinde Cao,Daohui Lin,Linling Wang,Nigel Graham,Daniel S. Alessi,Michael Komárek,Yong Sik Ok,Yujie Feng,Xiangdong Li +12 more
TL;DR: A novel sorbent for the removal of potentially toxic elements, inherent cations, and hetero-chloride from hydraulic fracturing wastewater (FWW) by elucidating the removal mechanisms of different contaminants is demonstrated.
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Biochar-supported nZVI (nZVI/BC) for contaminant removal from soil and water: A critical review.
Shengsen Wang,Mingyue Zhao,Min Zhou,Yuncong Li,Jun Wang,Bin Gao,Shinjiro Sato,Ke Feng,Weiqin Yin,Avanthi Deshani Igalavithana,Patryk Oleszczuk,Xiaozhi Wang,Yong Sik Ok +12 more
TL;DR: This work reviews the preparation of nZVI/BC nanocomposites; the effects of BC as a supporting matrix on the nZ VI crystallite size, dispersion, and oxidation and electron transfer capacity; and its interaction mechanisms with contaminants.
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Efficient removal of bisphenol A by superoxide radical and singlet oxygen generated from peroxymonosulfate activated with Fe0-montmorillonite
TL;DR: In this paper, a novel Fe0-montmorillonite composites (Fe-Mt-C-H2) have been prepared by thermal reduction and used as an activator for peroxymonosulfate (PMS) to remove bisphenol A (BPA).
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Fabrication and characterization of hydrophilic corn stalk biochar-supported nanoscale zero-valent iron composites for efficient metal removal.
TL;DR: The engineered biochar with hierarchical pores can impregnate iron nanoparticles, serve as an adsorbent, and enhance metal reduction/precipitation and can be a novel biowaste-derived material for wastewater treatment.
References
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Nanoscale Iron Particles for Environmental Remediation: An Overview
TL;DR: Nanoscale iron particles represent a new generation of environmental remediation technologies that could provide cost-effective solutions to some of the most challenging environmental cleanup problems as mentioned in this paper, and they provide enormous flexibility for in situ applications.
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Transitional Adsorption and Partition of Nonpolar and Polar Aromatic Contaminants by Biochars of Pine Needles with Different Pyrolytic Temperatures
TL;DR: Biochars, produced by pyrolysis of pine needles at different temperatures, were characterized by elemental analysis, BET-N2 surface areas and FTIR, and Sorption isotherms of naphthalene, nitrobenzene, and m-dinitrobenZene from water to the biochars were compared.
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Development of Biochar-Based Functional Materials: Toward a Sustainable Platform Carbon Material
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Nanoscale zero-valent iron: Future prospects for an emerging water treatment technology
TL;DR: The fundamental importance of being able to accurately predict the long-term physical, chemical and biological fate of contaminated sites following nZ VI treatment is emphasised and, as part of this, a universal empirical testing framework for nZVI is suggested.
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Properties of dairy-manure-derived biochar pertinent to its potential use in remediation
Xinde Cao,Willie G. Harris +1 more
TL;DR: The results indicated that dairy manure can be converted into biochar as an effective adsorbent for application in environmental remediation.