Light-driven removal of rhodamine B over SrTiO3 modified Bi2WO6 composites

Li Zhang; Wei Tian; Yong Chen; Jing Chen; Hongcheng Teng; Jiancheng Zhou; Jinwen Shi; Yueming Sun

doi:10.1039/c6ra13022d

Light-driven removal of rhodamine B over SrTiO₃ modified Bi₂WO₆ composites

Li Zhang
, Wei Tian
, Yong Chen
, Jing Chen
, Hongcheng Teng
, Jiancheng Zhou
, Jinwen Shi
, Yueming Sun

School of Energy and Power Engineering

Southeast University, Nanjing

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

13 Scopus citations

Abstract

SrTiO₃/Bi₂WO₆ hybrids were hydrothermally prepared and structurally examined by means of various chemical and physical techniques. Formation of heterojunction is well confirmed via HRTEM, XPS and PL and contributes immensely to the enhanced catalytic function of a composite in an assay of Rhodamine B (Rh B) photodegradation due to accelerated migration and separation of charge carriers at it. Among as-prepared samples, Bi₂WO₆ loaded with 8 wt% SrTiO₃ proves most photocatalytically active in light of a top degradation rate (D) of ca. 98.4% and a peak apparent kinetic rate (k) of 0.0463 min^-1. Besides, h⁺ and ·OH turn out to be the major reactive species for Rh B degradation. Finally, based on theoretical and experimental results, a possible reaction mechanism was proposed.

Original language	English
Pages (from-to)	83471-83481
Number of pages	11
Journal	RSC Advances
Volume	6
Issue number	86
DOIs	https://doi.org/10.1039/c6ra13022d
State	Published - 2016

Access to Document

10.1039/c6ra13022d

Cite this

@article{6ed1e4daa1cf463dbe478e90c1d754ee,

title = "Light-driven removal of rhodamine B over SrTiO3 modified Bi2WO6 composites",

abstract = "SrTiO3/Bi2WO6 hybrids were hydrothermally prepared and structurally examined by means of various chemical and physical techniques. Formation of heterojunction is well confirmed via HRTEM, XPS and PL and contributes immensely to the enhanced catalytic function of a composite in an assay of Rhodamine B (Rh B) photodegradation due to accelerated migration and separation of charge carriers at it. Among as-prepared samples, Bi2WO6 loaded with 8 wt\% SrTiO3 proves most photocatalytically active in light of a top degradation rate (D) of ca. 98.4\% and a peak apparent kinetic rate (k) of 0.0463 min-1. Besides, h+ and ·OH turn out to be the major reactive species for Rh B degradation. Finally, based on theoretical and experimental results, a possible reaction mechanism was proposed.",

author = "Li Zhang and Wei Tian and Yong Chen and Jing Chen and Hongcheng Teng and Jiancheng Zhou and Jinwen Shi and Yueming Sun",

note = "Publisher Copyright: {\textcopyright} 2016 The Royal Society of Chemistry.",

year = "2016",

doi = "10.1039/c6ra13022d",

language = "英语",

volume = "6",

pages = "83471--83481",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "86",

}

TY - JOUR

T1 - Light-driven removal of rhodamine B over SrTiO3 modified Bi2WO6 composites

AU - Zhang, Li

AU - Tian, Wei

AU - Chen, Yong

AU - Chen, Jing

AU - Teng, Hongcheng

AU - Zhou, Jiancheng

AU - Shi, Jinwen

AU - Sun, Yueming

PY - 2016

Y1 - 2016

N2 - SrTiO3/Bi2WO6 hybrids were hydrothermally prepared and structurally examined by means of various chemical and physical techniques. Formation of heterojunction is well confirmed via HRTEM, XPS and PL and contributes immensely to the enhanced catalytic function of a composite in an assay of Rhodamine B (Rh B) photodegradation due to accelerated migration and separation of charge carriers at it. Among as-prepared samples, Bi2WO6 loaded with 8 wt% SrTiO3 proves most photocatalytically active in light of a top degradation rate (D) of ca. 98.4% and a peak apparent kinetic rate (k) of 0.0463 min-1. Besides, h+ and ·OH turn out to be the major reactive species for Rh B degradation. Finally, based on theoretical and experimental results, a possible reaction mechanism was proposed.

AB - SrTiO3/Bi2WO6 hybrids were hydrothermally prepared and structurally examined by means of various chemical and physical techniques. Formation of heterojunction is well confirmed via HRTEM, XPS and PL and contributes immensely to the enhanced catalytic function of a composite in an assay of Rhodamine B (Rh B) photodegradation due to accelerated migration and separation of charge carriers at it. Among as-prepared samples, Bi2WO6 loaded with 8 wt% SrTiO3 proves most photocatalytically active in light of a top degradation rate (D) of ca. 98.4% and a peak apparent kinetic rate (k) of 0.0463 min-1. Besides, h+ and ·OH turn out to be the major reactive species for Rh B degradation. Finally, based on theoretical and experimental results, a possible reaction mechanism was proposed.

UR - https://www.scopus.com/pages/publications/84987660788

U2 - 10.1039/c6ra13022d

DO - 10.1039/c6ra13022d

M3 - 文章

AN - SCOPUS:84987660788

SN - 2046-2069

VL - 6

SP - 83471

EP - 83481

JO - RSC Advances

JF - RSC Advances

IS - 86

ER -

Light-driven removal of rhodamine B over SrTiO₃ modified Bi₂WO₆ composites

Abstract

Access to Document

Other files and links

Fingerprint

Cite this