Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction

ZnO–TiO2–carbon nanotubes (CNTs) composites are successfully synthesized using microwave-assisted reaction of ZnO precursor in TiO2 and CNTs suspension using a microwave synthesis system and they are used as photocatalysts for photocatalytic reduction of Cr(VI). The results show that the CNTs additi...

Бүрэн тодорхойлолт

Номзүйн дэлгэрэнгүй
Үндсэн зохиолчид: Liu, Xinjuan, Pan, Likun, Lv, Tian, Sun, Zhuo, Sun, Changqing
Бусад зохиолчид: School of Electrical and Electronic Engineering
Формат: Journal Article
Хэл сонгох:English
Хэвлэсэн: 2013
Нөхцлүүд:
Онлайн хандалт:https://hdl.handle.net/10356/98095
http://hdl.handle.net/10220/17384
_version_ 1826126110648172544
author Liu, Xinjuan
Pan, Likun
Lv, Tian
Sun, Zhuo
Sun, Changqing
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Liu, Xinjuan
Pan, Likun
Lv, Tian
Sun, Zhuo
Sun, Changqing
author_sort Liu, Xinjuan
collection NTU
description ZnO–TiO2–carbon nanotubes (CNTs) composites are successfully synthesized using microwave-assisted reaction of ZnO precursor in TiO2 and CNTs suspension using a microwave synthesis system and they are used as photocatalysts for photocatalytic reduction of Cr(VI). The results show that the CNTs addition could enhance the photocatalytic performance of ZnO–TiO2 composites. The ZnO–TiO2 composites achieve a maximum reduction rate of 90% at 240 min under UV light irradiation, much higher than those for the pure ZnO (58%) and the ZnO–TiO2 (69%). The improvement is ascribed to the increased light absorption intensity and range as well as the reduction of electron–hole pair recombination with the introduction of CNTs.
first_indexed 2024-10-01T06:47:21Z
format Journal Article
id ntu-10356/98095
institution Nanyang Technological University
language English
last_indexed 2024-10-01T06:47:21Z
publishDate 2013
record_format dspace
spelling ntu-10356/980952020-03-07T14:00:28Z Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction Liu, Xinjuan Pan, Likun Lv, Tian Sun, Zhuo Sun, Changqing School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics ZnO–TiO2–carbon nanotubes (CNTs) composites are successfully synthesized using microwave-assisted reaction of ZnO precursor in TiO2 and CNTs suspension using a microwave synthesis system and they are used as photocatalysts for photocatalytic reduction of Cr(VI). The results show that the CNTs addition could enhance the photocatalytic performance of ZnO–TiO2 composites. The ZnO–TiO2 composites achieve a maximum reduction rate of 90% at 240 min under UV light irradiation, much higher than those for the pure ZnO (58%) and the ZnO–TiO2 (69%). The improvement is ascribed to the increased light absorption intensity and range as well as the reduction of electron–hole pair recombination with the introduction of CNTs. 2013-11-07T06:53:43Z 2019-12-06T19:50:29Z 2013-11-07T06:53:43Z 2019-12-06T19:50:29Z 2012 2012 Journal Article Liu, X., Pan, L., Lv, T., Sun, Z., & Sun, C. (2012). Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction. Journal of molecular catalysis A : chemical, 363-364, 417-422. 1381-1169 https://hdl.handle.net/10356/98095 http://hdl.handle.net/10220/17384 10.1016/j.molcata.2012.07.019 en Journal of molecular catalysis A : chemical
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Liu, Xinjuan
Pan, Likun
Lv, Tian
Sun, Zhuo
Sun, Changqing
Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction
title Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction
title_full Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction
title_fullStr Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction
title_full_unstemmed Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction
title_short Enhanced photocatalytic reduction of Cr(VI) by ZnO–TiO2–CNTs composites synthesized via microwave-assisted reaction
title_sort enhanced photocatalytic reduction of cr vi by zno tio2 cnts composites synthesized via microwave assisted reaction
topic DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
url https://hdl.handle.net/10356/98095
http://hdl.handle.net/10220/17384
work_keys_str_mv AT liuxinjuan enhancedphotocatalyticreductionofcrvibyznotio2cntscompositessynthesizedviamicrowaveassistedreaction
AT panlikun enhancedphotocatalyticreductionofcrvibyznotio2cntscompositessynthesizedviamicrowaveassistedreaction
AT lvtian enhancedphotocatalyticreductionofcrvibyznotio2cntscompositessynthesizedviamicrowaveassistedreaction
AT sunzhuo enhancedphotocatalyticreductionofcrvibyznotio2cntscompositessynthesizedviamicrowaveassistedreaction
AT sunchangqing enhancedphotocatalyticreductionofcrvibyznotio2cntscompositessynthesizedviamicrowaveassistedreaction