Eco-friendly, renewable Crambe abyssinica Hochst-based adsorbents remove high quantities of Zn 2+ in water.

التفاصيل البيبلوغرافية
العنوان:	Eco-friendly, renewable Crambe abyssinica Hochst-based adsorbents remove high quantities of Zn ²⁺ in water.
المؤلفون:	Schwantes D; Departamento de Ciencias Vegetales, Facultad de Agronomía e Ing. Forestal, Pontificia Universidad Católica de Chile, Researcher ID: O-4051-2015, Santiago, Chile. Avenida Vicuña Mackenna 4860, Santiago, 7820436 Macul, Región Metropolitana Chile., Gonçalves AC Jr; Professor Associado da Universidade Estadual do Oeste do Paraná (UNIOESTE), Bolsista Produtividade em Pesquisa 1C do CNPq. Pernambuco Street, 1777 - Centro, Marechal Cândido Rondon, State of Paraná 85960-000 Brazil., Schiller ADP; Universidade Estadual do Oeste do Paraná (UNIOESTE), Pernambuco Street, 1777 - Centro, Marechal Cândido Rondon, State of Paraná 85960-000 Brazil., Manfrin J; Universidade Estadual do Oeste do Paraná (UNIOESTE), Pernambuco Street, 1777 - Centro, Marechal Cândido Rondon, State of Paraná 85960-000 Brazil., Bianco LAV; Pontifícia Universidade Católica do Paraná (PUCPR), Avenida União, 500 - Jardim Coopagro, Toledo, State of Paraná 85902-532 Brazil., Rosenberger AG; Universidade Estadual do Oeste do Paraná (UNIOESTE), Faculdade Street, 645 - Jardim La Salle, Toledo, State of Paraná 85903-000 Brazil.
المصدر:	Journal of environmental health science & engineering [J Environ Health Sci Eng] 2020 Jul 21; Vol. 18 (2), pp. 809-823. Date of Electronic Publication: 2020 Jul 21 (Print Publication: 2020).
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: Springer Country of Publication: England NLM ID: 101613643 Publication Model: eCollection Cited Medium: Print ISSN: 2052-336X (Print) NLM ISO Abbreviation: J Environ Health Sci Eng Subsets: PubMed not MEDLINE
أسماء مطبوعة:	Publication: 2018- : [London] : Springer Original Publication: [London] : BioMed Central, c2013-
مستخلص:	Although not considered poisonous and with natural occurrence, Zn contamination is mainly related to anthropic actions. This research aim was to develop, from crambe wastes, adsorbents with high adsorption capacity of Zn ²⁺ . The crambe biomass was modified with H 2 O 2 , H 2 SO 4 and NaOH 0.1 mol L ^-1 , resulting in four crambe-based adsorbents: C. in natura (unmodified), C. H 2 O 2 , C. H 2 SO 4 and C. NaOH. These were studied by determination of their chemical components, SEM, FTIR, pH PZC , thermal stability (by TG/DTG curves), SSA, pore volume and pore diameter (by BET and BJH). Adsorption studies were also carried out to evaluate its Zn removal capacity. Evaluations were taken on adsorbent dose and the influence of the pH, as well as studies on adsorption kinetics and equilibrium. These results were evaluated by pseudo-first order, pseudo-second order, Elovich, intraparticle diffusion, Langmuir, Freundlich, Dubinin-Radushkevich and Sips (linear and nonlinear models). Results show that the crambe-based adsorbents may have functional groups such as hydroxyls, amides, carbonyls and carboxylates, which may be responsible for the Zn ²⁺ adsorption. The materials have heterogeneous structure, allowing the occurrence of mono and multilayer adsorption of Zn. The finest results point out the occurrence of mono and multilayer of Zn ²⁺ (evidenced by Sips-nonlinear model), with an increase in Q sat of 72% (C. H 2 O 2 ), 22% (C. H 2 SO 4 ) and 80% (C. NaOH). The developed crambe adsorbents have low cost of production (since the raw material is until now a solid waste) and have high removal ratio of Zn ²⁺ from waters, being a promising technology. Competing Interests: Conflict of interestThe authors of the aforementioned article confirm that there is no conflict of interest that are directly or indirectly related to the research. (© Springer Nature Switzerland AG 2020.)
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فهرسة مساهمة:	Keywords: Biosorption; Heavy metal; Modified biomass, metal adsorption
تواريخ الأحداث:	Date Created: 20201214 Latest Revision: 20210722
رمز التحديث:	20221213
مُعرف محوري في PubMed:	PMC7721775
DOI:	10.1007/s40201-020-00505-9
PMID:	33312604
قاعدة البيانات:	MEDLINE

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الوصف
تدمد:	2052-336X
DOI:	10.1007/s40201-020-00505-9