Green Cu2O/TiO2 heterojunction for glycerol photoreforming

Miguel O. Segovia-Guzmán; Manuel Román-Aguirre; José Y. Verde-Gomez; Virginia H. Collins-Martínez; Gerardo Zaragoza-Galán; Víctor H. Ramos-Sánchez

doi:10.1016/j.cattod.2018.05.031

Green Cu₂O/TiO₂ heterojunction for glycerol photoreforming

Miguel O. Segovia-Guzmán
, Manuel Román-Aguirre
, José Y. Verde-Gomez
, Virginia H. Collins-Martínez
, Gerardo Zaragoza-Galán
, Víctor H. Ramos-Sánchez

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

30 Scopus citations

Abstract

A rapid and sustainable route for synthesizing a green photocatalyst based on nanometric Cu₂O clusters dispersed on TiO₂ (≈ 2 wt%) was developed. These nanoclusters were synthesized using reducing sugars (0.85 wt%) from aqueous onion waste (Allium cepa) as reducing and stabilizing agent. All this under microwave irradiation. Green photocatalysts produced hydrogen through glycerol photoreforming, ca. 4.7 mmol H₂/g_cat. The recyclability and reusability of these materials were demonstrated and the achieved heterojunction between Cu₂O and TiO₂ exhibited a bandgap within the visible spectrum at 2.80 eV, showing potential feasibility to solarize this process.

Original language	English (US)
Pages (from-to)	88-97
Number of pages	10
Journal	Catalysis Today
Volume	349
DOIs	https://doi.org/10.1016/j.cattod.2018.05.031
State	Published - Jun 1 2020
Externally published	Yes

Keywords

Glycerol photoreforming
Green photocatalysts
Microwave-assisted synthesis
Onion (Allium cepa) waste
Solar hydrogen

ASJC Scopus subject areas

Catalysis
General Chemistry

Access to Document

10.1016/j.cattod.2018.05.031

Cite this

@article{8887657b2e61435d9d930abee60a3d8e,

title = "Green Cu2O/TiO2 heterojunction for glycerol photoreforming",

abstract = "A rapid and sustainable route for synthesizing a green photocatalyst based on nanometric Cu2O clusters dispersed on TiO2 (≈ 2 wt\%) was developed. These nanoclusters were synthesized using reducing sugars (0.85 wt\%) from aqueous onion waste (Allium cepa) as reducing and stabilizing agent. All this under microwave irradiation. Green photocatalysts produced hydrogen through glycerol photoreforming, ca. 4.7 mmol H2/gcat. The recyclability and reusability of these materials were demonstrated and the achieved heterojunction between Cu2O and TiO2 exhibited a bandgap within the visible spectrum at 2.80 eV, showing potential feasibility to solarize this process.",

keywords = "Glycerol photoreforming, Green photocatalysts, Microwave-assisted synthesis, Onion (Allium cepa) waste, Solar hydrogen",

author = "Segovia-Guzm{\'a}n, \{Miguel O.\} and Manuel Rom{\'a}n-Aguirre and Verde-Gomez, \{Jos{\'e} Y.\} and Collins-Mart{\'i}nez, \{Virginia H.\} and Gerardo Zaragoza-Gal{\'a}n and Ramos-S{\'a}nchez, \{V{\'i}ctor H.\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2020",

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doi = "10.1016/j.cattod.2018.05.031",

language = "English (US)",

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AU - Segovia-Guzmán, Miguel O.

AU - Román-Aguirre, Manuel

AU - Verde-Gomez, José Y.

AU - Collins-Martínez, Virginia H.

AU - Zaragoza-Galán, Gerardo

AU - Ramos-Sánchez, Víctor H.

PY - 2020/6/1

Y1 - 2020/6/1

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KW - Glycerol photoreforming

KW - Green photocatalysts

KW - Microwave-assisted synthesis

KW - Onion (Allium cepa) waste

KW - Solar hydrogen

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