Adsorption and photocatalytic detoxification of diazinon using iron and nanotitania modified activated carbons

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00478828" target="_blank" >RIV/68081723:_____/17:00478828 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/17:PU123238

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jtice.2017.03.026" target="_blank" >http://dx.doi.org/10.1016/j.jtice.2017.03.026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jtice.2017.03.026" target="_blank" >10.1016/j.jtice.2017.03.026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Adsorption and photocatalytic detoxification of diazinon using iron and nanotitania modified activated carbons

Popis výsledku v původním jazyce

Diazinon is used as an insecticide for different types of cultivation. It is considered to be a toxic pollutant. In this work, we present a comparative study of diazinon detoxification by two methods: adsorption and photocatalytic degradation. Chemically activated carbon (AC) was prepared from flamboyant pods. AC was modified with iron (Fe-AC) to be used as a solid adsorbent for diazinon. TiO 2 and TiO 2 -AC, as photocat- alysts for degradation of diazinon, were prepared by the sol-gel method. Textural and surface character- izations of the prepared solid samples were carried out using nitrogen adsorption at -196 °C, scanning electron microscopy (SEM), pH PZC and the Boehme titration method. Adsorption of diazinon was inves- tigated on AC and Fe-AC considering the effects of pH, time, adsorbent dosage and concentration. The results showed that the adsorption capacity of Fe-AC is three times higher than that of AC. Furthermore, as the adsorbent dosage increases, the diazinon removal percentage increases, and adsorption follows pseudo-first- and pseudo-second-order equations. The diazinon photocatalytic degradation efficiency for TiO 2 -AC is higher than that for TiO 2, the diazinon degradation percentage reaches 95% in the case of TiO 2 -AC and only 55% in case of TiO 2 after 80 min.

Název v anglickém jazyce

Adsorption and photocatalytic detoxification of diazinon using iron and nanotitania modified activated carbons

Popis výsledku anglicky

Diazinon is used as an insecticide for different types of cultivation. It is considered to be a toxic pollutant. In this work, we present a comparative study of diazinon detoxification by two methods: adsorption and photocatalytic degradation. Chemically activated carbon (AC) was prepared from flamboyant pods. AC was modified with iron (Fe-AC) to be used as a solid adsorbent for diazinon. TiO 2 and TiO 2 -AC, as photocat- alysts for degradation of diazinon, were prepared by the sol-gel method. Textural and surface character- izations of the prepared solid samples were carried out using nitrogen adsorption at -196 °C, scanning electron microscopy (SEM), pH PZC and the Boehme titration method. Adsorption of diazinon was inves- tigated on AC and Fe-AC considering the effects of pH, time, adsorbent dosage and concentration. The results showed that the adsorption capacity of Fe-AC is three times higher than that of AC. Furthermore, as the adsorbent dosage increases, the diazinon removal percentage increases, and adsorption follows pseudo-first- and pseudo-second-order equations. The diazinon photocatalytic degradation efficiency for TiO 2 -AC is higher than that for TiO 2, the diazinon degradation percentage reaches 95% in the case of TiO 2 -AC and only 55% in case of TiO 2 after 80 min.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of the Taiwan Institute of Chemical Engineers

ISSN

1876-1070

e-ISSN

—

Svazek periodika

75

Číslo periodika v rámci svazku

JUN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

299-306

Kód UT WoS článku

000405879600034

EID výsledku v databázi Scopus

2-s2.0-85017098140