中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Synthesis of rare earth doped TiO2 nanorods as photocatalysts for lignin degradation

文献类型:期刊论文

作者Song, Liang1,2,3; Zhao, Xueyuan1; Cao, Lixin4; Moon, Ji-Won2,3; Gu, Baohua2,3; Wang, Wei2,3,4
刊名NANOSCALE
出版日期2015
卷号7期号:40页码:16695-16703
英文摘要

A two-step process is developed to synthesize rare earth doped titania nanorods (RE-TiO2 NRs) as photocatalysts for efficient degradation of lignin under simulated sunlight irradiation. In this approach, protonated titanate nanotubes with layered structures were first prepared by a hydrothermal approach, and rare earth metal ions were subsequently bound to the negatively charged surface of the synthesized titanate via electrostatic incorporation. The as-synthesized RE-TiO2 NRs after calcination generally showed much higher photocatalytic efficiencies than those of undoped TiO2 NRs or the commercial P25 TiO2 photocatalyst. Using methyl orange (MO) as a probing molecule, we demonstrate that Eu-TiO2 NRs are among the best for degrading MO, with an observed rate constant of 4.2 x 10(-3) s(-1). The La3+, Sm3+, Eu3+ and Er3+ doped TiO2 NRs also showed higher photocatalytic efficiencies in degrading MO than the commercial P25 TiO2. We further demonstrate that lignin can be photodegraded effectively and rapidly at room temperature under simulated sunlight through two reaction routes, which could be important in controlling ways of lignin depolymerization or the formation of reaction products.

WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
关键词[WOS]VISIBLE-LIGHT IRRADIATION ; TITANIUM-DIOXIDE ; RAMAN-SCATTERING ; WASTE-WATER ; THIN-FILMS ; NANOTUBES ; UV ; WOOD ; PHOTODEGRADATION ; DEPOLYMERIZATION
收录类别SCI
语种英语
WOS记录号WOS:000362662100020
源URL[http://ir.qibebt.ac.cn/handle/337004/6696]  
专题青岛生物能源与过程研究所_科技发展部
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuel, Qingdao 266101, Shandong, Peoples R China
2.Oak Ridge Natl Lab, Environm Sci Div, Oak Ridge, TN 37831 USA
3.Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA
4.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Shandong, Peoples R China
推荐引用方式
GB/T 7714
Song, Liang,Zhao, Xueyuan,Cao, Lixin,et al. Synthesis of rare earth doped TiO2 nanorods as photocatalysts for lignin degradation[J]. NANOSCALE,2015,7(40):16695-16703.
APA Song, Liang,Zhao, Xueyuan,Cao, Lixin,Moon, Ji-Won,Gu, Baohua,&Wang, Wei.(2015).Synthesis of rare earth doped TiO2 nanorods as photocatalysts for lignin degradation.NANOSCALE,7(40),16695-16703.
MLA Song, Liang,et al."Synthesis of rare earth doped TiO2 nanorods as photocatalysts for lignin degradation".NANOSCALE 7.40(2015):16695-16703.

入库方式: OAI收割

来源:青岛生物能源与过程研究所

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