Preparation and characterization of the polycrystalline material Zn5(OH)6(CO3)2. Determination of the active species in oxide-reduction processes

F. Tzompantzi; C. Tzompantzi-Flores; N. S. Portillo-Vélez; J. C. Castillo-Rodríguez; R. Gómez; Raúl Pérez Hernández; C. E. Santolalla-Vargas

doi:10.1016/j.fuel.2020.118471

Preparation and characterization of the polycrystalline material Zn₅(OH)₆(CO₃)₂. Determination of the active species in oxide-reduction processes

F. Tzompantzi, C. Tzompantzi-Flores, N. S. Portillo-Vélez, J. C. Castillo-Rodríguez, R. Gómez, Raúl Pérez Hernández, C. E. Santolalla-Vargas

Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD)

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The aim of this work is study the optical, structural, textural and morphological properties of hydrozincite (Zn₅(OH)₆(CO₃)₂). The semiconductor has been employed as photocatalytic support and has proved to be active in both oxidation and reduction processes. In this work is demonstrated that the photocatalytic activity of the bare material can be improved at suitable experimental conditions. The photocatalytic activity of hydrozincite was assessed in phenol oxidation and H₂ production. The mineralization percentage of phenol at 6 h was 40% while the highest rate constant of H₂ production was 2326 μmol g⁻¹h⁻¹. TEM studies point to the high photocatalytic performance of hydrozincite in oxide-reduction processes is principally attributed to the formation of a polycrystalline material. Additionally, the active species participating in oxide-reduction reactions were followed ([rad]OH, [rad]O₂^-, h⁺) by fluorescence and UV–Vis spectroscopy.

Original language	English
Article number	118471
Journal	Fuel
Volume	281
DOIs	https://doi.org/10.1016/j.fuel.2020.118471
State	Published - 1 Dec 2020

Keywords

H production
Hydrozincite
Phenol degradation
Photocatalysis
Zinc

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Tzompantzi, F., Tzompantzi-Flores, C., Portillo-Vélez, N. S., Castillo-Rodríguez, J. C., Gómez, R., Pérez Hernández, R., & Santolalla-Vargas, C. E. (2020). Preparation and characterization of the polycrystalline material Zn₅(OH)₆(CO₃)₂. Determination of the active species in oxide-reduction processes. Fuel, 281, Article 118471. https://doi.org/10.1016/j.fuel.2020.118471

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title = "Preparation and characterization of the polycrystalline material Zn5(OH)6(CO3)2. Determination of the active species in oxide-reduction processes",

abstract = "The aim of this work is study the optical, structural, textural and morphological properties of hydrozincite (Zn5(OH)6(CO3)2). The semiconductor has been employed as photocatalytic support and has proved to be active in both oxidation and reduction processes. In this work is demonstrated that the photocatalytic activity of the bare material can be improved at suitable experimental conditions. The photocatalytic activity of hydrozincite was assessed in phenol oxidation and H2 production. The mineralization percentage of phenol at 6 h was 40% while the highest rate constant of H2 production was 2326 μmol g−1h−1. TEM studies point to the high photocatalytic performance of hydrozincite in oxide-reduction processes is principally attributed to the formation of a polycrystalline material. Additionally, the active species participating in oxide-reduction reactions were followed ([rad]OH, [rad]O2-, h+) by fluorescence and UV–Vis spectroscopy.",

keywords = "H production, Hydrozincite, Phenol degradation, Photocatalysis, Zinc",

author = "F. Tzompantzi and C. Tzompantzi-Flores and Portillo-V{\'e}lez, {N. S.} and Castillo-Rodr{\'i}guez, {J. C.} and R. G{\'o}mez and {P{\'e}rez Hern{\'a}ndez}, Ra{\'u}l and Santolalla-Vargas, {C. E.}",

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year = "2020",

month = dec,

day = "1",

doi = "10.1016/j.fuel.2020.118471",

language = "Ingl{\'e}s",

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T1 - Preparation and characterization of the polycrystalline material Zn5(OH)6(CO3)2. Determination of the active species in oxide-reduction processes

AU - Tzompantzi, F.

AU - Tzompantzi-Flores, C.

AU - Portillo-Vélez, N. S.

AU - Castillo-Rodríguez, J. C.

AU - Gómez, R.

AU - Pérez Hernández, Raúl

AU - Santolalla-Vargas, C. E.

PY - 2020/12/1

Y1 - 2020/12/1

N2 - The aim of this work is study the optical, structural, textural and morphological properties of hydrozincite (Zn5(OH)6(CO3)2). The semiconductor has been employed as photocatalytic support and has proved to be active in both oxidation and reduction processes. In this work is demonstrated that the photocatalytic activity of the bare material can be improved at suitable experimental conditions. The photocatalytic activity of hydrozincite was assessed in phenol oxidation and H2 production. The mineralization percentage of phenol at 6 h was 40% while the highest rate constant of H2 production was 2326 μmol g−1h−1. TEM studies point to the high photocatalytic performance of hydrozincite in oxide-reduction processes is principally attributed to the formation of a polycrystalline material. Additionally, the active species participating in oxide-reduction reactions were followed ([rad]OH, [rad]O2-, h+) by fluorescence and UV–Vis spectroscopy.

AB - The aim of this work is study the optical, structural, textural and morphological properties of hydrozincite (Zn5(OH)6(CO3)2). The semiconductor has been employed as photocatalytic support and has proved to be active in both oxidation and reduction processes. In this work is demonstrated that the photocatalytic activity of the bare material can be improved at suitable experimental conditions. The photocatalytic activity of hydrozincite was assessed in phenol oxidation and H2 production. The mineralization percentage of phenol at 6 h was 40% while the highest rate constant of H2 production was 2326 μmol g−1h−1. TEM studies point to the high photocatalytic performance of hydrozincite in oxide-reduction processes is principally attributed to the formation of a polycrystalline material. Additionally, the active species participating in oxide-reduction reactions were followed ([rad]OH, [rad]O2-, h+) by fluorescence and UV–Vis spectroscopy.

KW - H production

KW - Hydrozincite

KW - Phenol degradation

KW - Photocatalysis

KW - Zinc

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DO - 10.1016/j.fuel.2020.118471

M3 - Artículo

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SN - 0016-2361

VL - 281

JO - Fuel

JF - Fuel

M1 - 118471

ER -

Preparation and characterization of the polycrystalline material Zn₅(OH)₆(CO₃)₂. Determination of the active species in oxide-reduction processes

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Keywords

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