Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption

Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption

16 páginas.- 6 figuras.- 2 tablas.- 50 referencias

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Bibliographic Details
Main Authors: Gámiz, B., Hall, K. E., Spokas, K. A., Cox, L.
Other Authors: Agencia Estatal de Investigación (España)
Format: artículo biblioteca
Language:English
Published: Multidisciplinary Digital Publishing Institute 2019-09-27
Subjects:Activated charcoal, Aging, Pesticides,
Online Access:http://hdl.handle.net/10261/191824
http://dx.doi.org/10.13039/501100010198
http://dx.doi.org/10.13039/501100011033
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spelling dig-irnas-es-10261-1918242020-09-30T08:00:59Z Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption Gámiz, B. Hall, K. E. Spokas, K. A. Cox, L. Agencia Estatal de Investigación (España) Ministerio de Economía, Industria y Competitividad (España) Ministerio de Ciencia, Innovación y Universidades (España) Gámiz, B. [0000-0002-7244-778X] Spokas, K. A. [0000-0002-5049-5959] Cox, L. [0000-0003-2113-4780] Activated charcoal Aging Pesticides 16 páginas.- 6 figuras.- 2 tablas.- 50 referencias Activation treatments are often used as a means of increasing a biochar’s sorption capacity for agrochemical compounds but can also provide valuable insight into sorption mechanisms. This work investigates the effects of H2O2 activation on a low-temperature (350 °C) grape wood biochar, evaluates subsequent changes to the removal efficiency (RE) of cyhalofop and clomazone, and elucidates potential sorption mechanisms. Activation by H2O2 decreased the biochar pH, ash content, and C content. Additionally, the biochar O content and surface area increased following activation, and Fourier transform infrared spectroscopy (FTIR) data suggested a slight increase in surface O groups and a decrease in aliphatic C. Cyhalofop RE significantly increased following activation, while clomazone RE was unchanged. The increased sorption of cyhalofop was attributed to pH effects and charge-based interactions with biochar O moieties. Results from this study suggest that H2O2 activation treatments on low-temperature biochars may improve the removal of organic acid herbicides but are of little value in optimizing the removal of polar, non-ionizable herbicides. The Spanish Ministry of Science, Innovation and Universities (MICINN Project AGL2016-77821-R). Peer reviewed 2019-09-30T07:33:57Z 2019-09-30T07:33:57Z 2019-09-27 artículo http://purl.org/coar/resource_type/c_6501 Agronomy 9(10): 588 (2019) http://hdl.handle.net/10261/191824 10.3390/agronomy9100588 2073-4395 http://dx.doi.org/10.13039/501100010198 http://dx.doi.org/10.13039/501100011033 en #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2016-77821-R Publisher's version http://dx.doi.org/10.3390/agronomy9100588 Sí open Multidisciplinary Digital Publishing Institute
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
topic Activated charcoal
Aging
Pesticides
Activated charcoal
Aging
Pesticides
spellingShingle Activated charcoal
Aging
Pesticides
Activated charcoal
Aging
Pesticides
Gámiz, B.
Hall, K. E.
Spokas, K. A.
Cox, L.
Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption
description 16 páginas.- 6 figuras.- 2 tablas.- 50 referencias
author2 Agencia Estatal de Investigación (España)
author_facet Agencia Estatal de Investigación (España)
Gámiz, B.
Hall, K. E.
Spokas, K. A.
Cox, L.
format artículo
topic_facet Activated charcoal
Aging
Pesticides
author Gámiz, B.
Hall, K. E.
Spokas, K. A.
Cox, L.
author_sort Gámiz, B.
title Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption
title_short Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption
title_full Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption
title_fullStr Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption
title_full_unstemmed Understanding Activation Effects on Low-Temperature Biochar for Optimization of Herbicide Sorption
title_sort understanding activation effects on low-temperature biochar for optimization of herbicide sorption
publisher Multidisciplinary Digital Publishing Institute
publishDate 2019-09-27
url http://hdl.handle.net/10261/191824
http://dx.doi.org/10.13039/501100010198
http://dx.doi.org/10.13039/501100011033
work_keys_str_mv AT gamizb understandingactivationeffectsonlowtemperaturebiocharforoptimizationofherbicidesorption
AT hallke understandingactivationeffectsonlowtemperaturebiocharforoptimizationofherbicidesorption
AT spokaska understandingactivationeffectsonlowtemperaturebiocharforoptimizationofherbicidesorption
AT coxl understandingactivationeffectsonlowtemperaturebiocharforoptimizationofherbicidesorption
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