In-situ Pt nanoparticles decorated BiOBr heterostructure for enhanced visible light-based photocatalytic activity: Synergistic effect

Kamakshaiah Charyulu Devarayapalli; Jie Zeng; Dae Sung Lee; S. V.Prabhakar Vattikuti; Jaesool Shim

doi:10.1016/j.chemosphere.2022.134125

In-situ Pt nanoparticles decorated BiOBr heterostructure for enhanced visible light-based photocatalytic activity: Synergistic effect

Kamakshaiah Charyulu Devarayapalli
, Jie Zeng
, Dae Sung Lee
, S. V.Prabhakar Vattikuti
, Jaesool Shim

Department of Environmental Engineering

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

34 Scopus citations

Abstract

Advanced functional materials for photocatalytic hydrogen (H₂) generation using abundant solar energy are the core of new and renewable energy research. In this paper, we report the in-situ deposition of platinum quantum-sized particles (Pt QDs) on bismuth oxybromide (BBr) 3D marigold flowers with exposed (101)/(110) facets (i.e. BBr–Pt) hierarchies prepared by a simple solvo-thermal method acting as a surfactant/structure stabilizer in the presence of CTAB. Synthesized samples were characterized by a series of analytical techniques. Intimate contact as demonstrated by HRTEM, effect of Pt loading in 3D-BiOBr nanostructure on photocatalytic H₂ production and crystal violet (CV) dye degradation rate under white LED light irradiation was studied. This was greatly improved by loading Pt QDs on BBr, the latter showing the highest photocatalytic activity for BBr-2Pt nanostructure, due to the synergistic effect of quantum-sized Pt nanoparticles and exposed ((101) and (110) planes). The BBr–2Pt nanostructure photocatalysts showed highest H₂ generation of 320.69 μmol g⁻¹, which is 142 folds larger than bare BBr (2.26 μmol g⁻¹).

Original language	English
Article number	134125
Journal	Chemosphere
Volume	298
DOIs	https://doi.org/10.1016/j.chemosphere.2022.134125
State	Published - Jul 2022

Keywords

Dye degradation
Hydrogen production
Nobel metal
Photocatalysts
Quantum dots

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.chemosphere.2022.134125

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@article{0aae5f672a9440469bdb71881c452a01,

title = "In-situ Pt nanoparticles decorated BiOBr heterostructure for enhanced visible light-based photocatalytic activity: Synergistic effect",

abstract = "Advanced functional materials for photocatalytic hydrogen (H2) generation using abundant solar energy are the core of new and renewable energy research. In this paper, we report the in-situ deposition of platinum quantum-sized particles (Pt QDs) on bismuth oxybromide (BBr) 3D marigold flowers with exposed (101)/(110) facets (i.e. BBr–Pt) hierarchies prepared by a simple solvo-thermal method acting as a surfactant/structure stabilizer in the presence of CTAB. Synthesized samples were characterized by a series of analytical techniques. Intimate contact as demonstrated by HRTEM, effect of Pt loading in 3D-BiOBr nanostructure on photocatalytic H2 production and crystal violet (CV) dye degradation rate under white LED light irradiation was studied. This was greatly improved by loading Pt QDs on BBr, the latter showing the highest photocatalytic activity for BBr-2Pt nanostructure, due to the synergistic effect of quantum-sized Pt nanoparticles and exposed ((101) and (110) planes). The BBr–2Pt nanostructure photocatalysts showed highest H2 generation of 320.69 μmol g−1, which is 142 folds larger than bare BBr (2.26 μmol g−1).",

keywords = "Dye degradation, Hydrogen production, Nobel metal, Photocatalysts, Quantum dots",

author = "Devarayapalli, \{Kamakshaiah Charyulu\} and Jie Zeng and Lee, \{Dae Sung\} and Vattikuti, \{S. V.Prabhakar\} and Jaesool Shim",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = jul,

doi = "10.1016/j.chemosphere.2022.134125",

language = "English",

volume = "298",

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TY - JOUR

T1 - In-situ Pt nanoparticles decorated BiOBr heterostructure for enhanced visible light-based photocatalytic activity

T2 - Synergistic effect

AU - Devarayapalli, Kamakshaiah Charyulu

AU - Zeng, Jie

AU - Lee, Dae Sung

AU - Vattikuti, S. V.Prabhakar

AU - Shim, Jaesool

PY - 2022/7

Y1 - 2022/7

N2 - Advanced functional materials for photocatalytic hydrogen (H2) generation using abundant solar energy are the core of new and renewable energy research. In this paper, we report the in-situ deposition of platinum quantum-sized particles (Pt QDs) on bismuth oxybromide (BBr) 3D marigold flowers with exposed (101)/(110) facets (i.e. BBr–Pt) hierarchies prepared by a simple solvo-thermal method acting as a surfactant/structure stabilizer in the presence of CTAB. Synthesized samples were characterized by a series of analytical techniques. Intimate contact as demonstrated by HRTEM, effect of Pt loading in 3D-BiOBr nanostructure on photocatalytic H2 production and crystal violet (CV) dye degradation rate under white LED light irradiation was studied. This was greatly improved by loading Pt QDs on BBr, the latter showing the highest photocatalytic activity for BBr-2Pt nanostructure, due to the synergistic effect of quantum-sized Pt nanoparticles and exposed ((101) and (110) planes). The BBr–2Pt nanostructure photocatalysts showed highest H2 generation of 320.69 μmol g−1, which is 142 folds larger than bare BBr (2.26 μmol g−1).

AB - Advanced functional materials for photocatalytic hydrogen (H2) generation using abundant solar energy are the core of new and renewable energy research. In this paper, we report the in-situ deposition of platinum quantum-sized particles (Pt QDs) on bismuth oxybromide (BBr) 3D marigold flowers with exposed (101)/(110) facets (i.e. BBr–Pt) hierarchies prepared by a simple solvo-thermal method acting as a surfactant/structure stabilizer in the presence of CTAB. Synthesized samples were characterized by a series of analytical techniques. Intimate contact as demonstrated by HRTEM, effect of Pt loading in 3D-BiOBr nanostructure on photocatalytic H2 production and crystal violet (CV) dye degradation rate under white LED light irradiation was studied. This was greatly improved by loading Pt QDs on BBr, the latter showing the highest photocatalytic activity for BBr-2Pt nanostructure, due to the synergistic effect of quantum-sized Pt nanoparticles and exposed ((101) and (110) planes). The BBr–2Pt nanostructure photocatalysts showed highest H2 generation of 320.69 μmol g−1, which is 142 folds larger than bare BBr (2.26 μmol g−1).

KW - Dye degradation

KW - Hydrogen production

KW - Nobel metal

KW - Photocatalysts

KW - Quantum dots

UR - https://www.scopus.com/pages/publications/85126096310

U2 - 10.1016/j.chemosphere.2022.134125

DO - 10.1016/j.chemosphere.2022.134125

M3 - Article

C2 - 35231473

AN - SCOPUS:85126096310

SN - 0045-6535

VL - 298

JO - Chemosphere

JF - Chemosphere

M1 - 134125

ER -

In-situ Pt nanoparticles decorated BiOBr heterostructure for enhanced visible light-based photocatalytic activity: Synergistic effect

Abstract

Keywords

UN SDGs

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