Preparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples

In this study, the nanocomposites from biomass (soybean straw) and layered double hydroxides (LDHs), denoted as B/LDHs, were fabricated using the mechanical-hydrothermal method. The obtained B/LDHs nanocomposites were characterized by TEM, SEM, FT-IR, and N2 adsorption–desorption techniques. Adsorpt...

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Autores principales:	Zhang Fengrong, Zhang Binghan, Han Dandan, Wu Lishun, Hou Wanguo
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	layered double hydroxide soybean straw nanocomposite adsorption heavy-metal Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/a5f02eb6a4d541869296ddd065849956
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spelling	oai:doaj.org-article:a5f02eb6a4d541869296ddd0658499562021-12-05T14:10:44ZPreparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples2391-542010.1515/chem-2021-0058https://doaj.org/article/a5f02eb6a4d541869296ddd0658499562021-06-01T00:00:00Zhttps://doi.org/10.1515/chem-2021-0058https://doaj.org/toc/2391-5420In this study, the nanocomposites from biomass (soybean straw) and layered double hydroxides (LDHs), denoted as B/LDHs, were fabricated using the mechanical-hydrothermal method. The obtained B/LDHs nanocomposites were characterized by TEM, SEM, FT-IR, and N2 adsorption–desorption techniques. Adsorption of the heavy-metal ions Pb(ii) on the B/LDHs was determined at 25°C and pH 6.0 using a batch technique. The experimental results demonstrated that biomass contributed to the sorption process. The pseudo-second-order, Langmuir, and Freundlich models well fitted the sorption process, indicating chemisorption and monolayer adsorption were the main adsorption mechanisms. Meanwhile, it is found that there is an obvious effect of adsorbent concentration in the studied adsorption system. In comparison with soybean straw and Mg–Al LDHs, the B/LDHs nanocomposites exhibit significantly enhanced sorption capacities. It is evident from this study that the construction of B/LDHs nanocomposites is an effective strategy for improving the sorption capacity of LDHs, and the modified LDH-based adsorbent shows a good potential in the removal of heavy metals from water. More importantly, it solves the problem of a large number of agricultural waste disposals. And, it achieved the goal of a win-win situation.Zhang FengrongZhang BinghanHan DandanWu LishunHou WanguoDe Gruyterarticlelayered double hydroxidesoybean strawnanocompositeadsorptionheavy-metalChemistryQD1-999ENOpen Chemistry, Vol 19, Iss 1, Pp 726-734 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	layered double hydroxide soybean straw nanocomposite adsorption heavy-metal Chemistry QD1-999
spellingShingle	layered double hydroxide soybean straw nanocomposite adsorption heavy-metal Chemistry QD1-999 Zhang Fengrong Zhang Binghan Han Dandan Wu Lishun Hou Wanguo Preparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples
description	In this study, the nanocomposites from biomass (soybean straw) and layered double hydroxides (LDHs), denoted as B/LDHs, were fabricated using the mechanical-hydrothermal method. The obtained B/LDHs nanocomposites were characterized by TEM, SEM, FT-IR, and N2 adsorption–desorption techniques. Adsorption of the heavy-metal ions Pb(ii) on the B/LDHs was determined at 25°C and pH 6.0 using a batch technique. The experimental results demonstrated that biomass contributed to the sorption process. The pseudo-second-order, Langmuir, and Freundlich models well fitted the sorption process, indicating chemisorption and monolayer adsorption were the main adsorption mechanisms. Meanwhile, it is found that there is an obvious effect of adsorbent concentration in the studied adsorption system. In comparison with soybean straw and Mg–Al LDHs, the B/LDHs nanocomposites exhibit significantly enhanced sorption capacities. It is evident from this study that the construction of B/LDHs nanocomposites is an effective strategy for improving the sorption capacity of LDHs, and the modified LDH-based adsorbent shows a good potential in the removal of heavy metals from water. More importantly, it solves the problem of a large number of agricultural waste disposals. And, it achieved the goal of a win-win situation.
format	article
author	Zhang Fengrong Zhang Binghan Han Dandan Wu Lishun Hou Wanguo
author_facet	Zhang Fengrong Zhang Binghan Han Dandan Wu Lishun Hou Wanguo
author_sort	Zhang Fengrong
title	Preparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples
title_short	Preparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples
title_full	Preparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples
title_fullStr	Preparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples
title_full_unstemmed	Preparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples
title_sort	preparation of composite soybean straw-based materials by ldhs modifying as a solid sorbent for removal of pb(ii) from water samples
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/a5f02eb6a4d541869296ddd065849956
work_keys_str_mv	AT zhangfengrong preparationofcompositesoybeanstrawbasedmaterialsbyldhsmodifyingasasolidsorbentforremovalofpbiifromwatersamples AT zhangbinghan preparationofcompositesoybeanstrawbasedmaterialsbyldhsmodifyingasasolidsorbentforremovalofpbiifromwatersamples AT handandan preparationofcompositesoybeanstrawbasedmaterialsbyldhsmodifyingasasolidsorbentforremovalofpbiifromwatersamples AT wulishun preparationofcompositesoybeanstrawbasedmaterialsbyldhsmodifyingasasolidsorbentforremovalofpbiifromwatersamples AT houwanguo preparationofcompositesoybeanstrawbasedmaterialsbyldhsmodifyingasasolidsorbentforremovalofpbiifromwatersamples
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Preparation of composite soybean straw-based materials by LDHs modifying as a solid sorbent for removal of Pb(ii) from water samples

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