Biosorption (removing) of Cd(II), Cu(II) and methylene blue using biochar produced by different pyrolysis conditions of beech and spruce sawdust

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F17%3AA1801O8Z" target="_blank" >RIV/61988987:17310/17:A1801O8Z - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00226-017-0928-3" target="_blank" >http://dx.doi.org/10.1007/s00226-017-0928-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00226-017-0928-3" target="_blank" >10.1007/s00226-017-0928-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Biosorption (removing) of Cd(II), Cu(II) and methylene blue using biochar produced by different pyrolysis conditions of beech and spruce sawdust

Popis výsledku v původním jazyce

The influence of pyrolysis parameters (temperature, heating rate) onadsorption properties of wood charcoals was studied. Beech and spruce wastesawdust were investigated by TG-MS technique, and it was revealed that pyrolysisof sawdust consists at least of two overlapping reactions characterized by differentvalues of activation energy Ea(151 and 184 kJ/mol for beech sawdust, 157 and172 kJ/mol for spruce sawdust). Based on obtained results, adsorbents from studiedsawdust were prepared through pyrolysis at 400-700 C with heating rate 10 or 2 K/min and their surface and adsorption characteristics were investigated. It was foundthat higher pyrolysis temperature (700 C) and higher heating rate (10 K/min)generally improved micropore surface areas of beech and spruce biochars. Theadsorption capacity of spruce biochar for Cu(II) and Cd(II) increased with higherpyrolysis temperature and lower heating rate (2 K/min) up to 0.14 and 0.12 mmol/g,respectively. In the case of beech biochar, the adsorption capacity for heavy metalions has no distinct dependence on pyrolysis temperature nor heating rate. Theopposite effect of heating rate was found in the case of the methylene blue uptake,better adsorbent can be prepared by pyrolysis with heating rate 10 K/min. The effectof pyrolysis temperature is not clear in this case.

Název v anglickém jazyce

Biosorption (removing) of Cd(II), Cu(II) and methylene blue using biochar produced by different pyrolysis conditions of beech and spruce sawdust

Popis výsledku anglicky

The influence of pyrolysis parameters (temperature, heating rate) onadsorption properties of wood charcoals was studied. Beech and spruce wastesawdust were investigated by TG-MS technique, and it was revealed that pyrolysisof sawdust consists at least of two overlapping reactions characterized by differentvalues of activation energy Ea(151 and 184 kJ/mol for beech sawdust, 157 and172 kJ/mol for spruce sawdust). Based on obtained results, adsorbents from studiedsawdust were prepared through pyrolysis at 400-700 C with heating rate 10 or 2 K/min and their surface and adsorption characteristics were investigated. It was foundthat higher pyrolysis temperature (700 C) and higher heating rate (10 K/min)generally improved micropore surface areas of beech and spruce biochars. Theadsorption capacity of spruce biochar for Cu(II) and Cd(II) increased with higherpyrolysis temperature and lower heating rate (2 K/min) up to 0.14 and 0.12 mmol/g,respectively. In the case of beech biochar, the adsorption capacity for heavy metalions has no distinct dependence on pyrolysis temperature nor heating rate. Theopposite effect of heating rate was found in the case of the methylene blue uptake,better adsorbent can be prepared by pyrolysis with heating rate 10 K/min. The effectof pyrolysis temperature is not clear in this case.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/LO1208" target="_blank" >LO1208: Teoretické aspekty energetického zpracování odpadů a ochrany prostředí před negativními dopady</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Wood Science and Technology

ISSN

1432-5225

e-ISSN

—

Svazek periodika

6

Číslo periodika v rámci svazku

November 2017

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

18

Strana od-do

1321-1338

Kód UT WoS článku

000413010900005

EID výsledku v databázi Scopus

2-s2.0-85020057736