Photocatalytic Degradation of Indoor Formaldehyde by Er3+:YAlO3/TiO2 Photocatalyst Under Visible Light Irradiation

ZHOU Xian; DONG Shan-shan; DONG Shuang-shi; LIU Yao-hui; WAN Li-dong

doi:10.3788/fgxb20153607.0769

您当前的位置：

首页 >

文章列表页 >

Photocatalytic Degradation of Indoor Formaldehyde by Er³⁺:YAlO₃/TiO₂ Photocatalyst Under Visible Light Irradiation

更新时间：2020-08-12

- Photocatalytic Degradation of Indoor Formaldehyde by Er³⁺:YAlO₃/TiO₂ Photocatalyst Under Visible Light Irradiation
- Chinese Journal of Luminescence Vol. 36, Issue 7, Pages: 769-774(2015)
- 作者机构：
  
  吉林大学地下水资源与环境教育部重点实验室,吉林长春,130021
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153607.0769
  CLC： O654;O482.31
- Received：09 April 2015，
  
  Revised：06 May 2015，
  
  Published：03 July 2015
- 稿件说明：
移动端阅览
周娴, 董山山, 董双石等. 基于Er3+:YAlO3/TiO2的可见光催化降解室内甲醛[J]. 发光学报, 2015,36(7): 769-774

ZHOU Xian, DONG Shan-shan, DONG Shuang-shi etc. Photocatalytic Degradation of Indoor Formaldehyde by Er3+:YAlO3/TiO2 Photocatalyst Under Visible Light Irradiation[J]. Chinese Journal of Luminescence, 2015,36(7): 769-774
周娴, 董山山, 董双石等. 基于Er3+:YAlO3/TiO2的可见光催化降解室内甲醛[J]. 发光学报, 2015,36(7): 769-774 DOI： 10.3788/fgxb20153607.0769.

ZHOU Xian, DONG Shan-shan, DONG Shuang-shi etc. Photocatalytic Degradation of Indoor Formaldehyde by Er3+:YAlO3/TiO2 Photocatalyst Under Visible Light Irradiation[J]. Chinese Journal of Luminescence, 2015,36(7): 769-774 DOI： 10.3788/fgxb20153607.0769.

摘要

为使TiO

能够在可见光下发挥其于紫外激发的高光催化活性降解室内甲醛

采用水热处理法将TiO

与掺杂稀土离子Er

的上转换发光剂Er

:YAlO

结合

制备具有可见光响应的Er

:YAlO

/TiO

光催化剂

并对其进行了表征分析。结果表明

TiO

以锐钛矿为主

且Er

:YAlO

可有效地将可见光上转换至可激发TiO

的紫外光。在箱式反应器中进行光催化降解气态甲醛

研究了甲醛初始浓度与催化剂用量对甲醛降解效率的影响。结果表明

该光催化反应的假一级反应速率常数(

app

)与甲醛初始浓度成正相关

而随催化剂用量的增加先升高后降低。当甲醛初始浓度为0.058 mg/m

、催化剂用量为0.122 4 g/L时

app

最大为3.6510

-3

min

-1

。该反应符合Langmuir-Hinshelwood模型

反应速率常数为510

-8

mg/(Lmin)。

Abstract

In order to develop the photocatalytic activity of TiO

under visible light as that under ultraviolet light to degrade indoor ormaldehyde pollution

a visible light response photocatalyst consisting of TiO

and upconversion luminescence agent Er

:YAlO

was prepared using hydrothermal treatment method. The photocatalyst was characterized by X-ray diffractometer (XRD)

UV-Vis diffuse reflectance spectrophotometer (DRS) and fluorescence spectrometer (FS).The prepared TiO

is anatase-dominant. Er

:YAlO

can convert visible light to ultraviolet (UV) light to expand the absorption range of TiO

. The upconverted UV light can excite TiO

effectively to produce active materials with strong oxidation ability. The photocatalyst was applied to degrade gaseous formaldehyde in the sealed reactor

and the effect of initial formaldehyde concentration and photocatalyst dosage on the degradation efficiency of formaldehyde were investigated. The results show that the prepared photocatalyst can efficiently degrade the formaldehyde. The apparent first order reaction rate constant for gaseous formaldehyde degradation is positively correlated with the initial formaldehyde concentration

but increases first then decreases with the increasing of photocatalyst dosage from 0.061 2 g/L to 0.234 8 g/L. When the formaldehyde concentration is 0.058 mg/m

and the photocatalyst dosage is 0.122 4 g/L

the apparent first order reaction rate constant is the biggest of 3.6510

-3

min

-1

. The degradation follows Langmuir-Hinshelwood model

and the reaction rate constant is 510

-8

mg/(Lmin).

关键词

Keywords

references

Gao L X, Lu Y J. Present status and improvement to find indoor purifier [J]. J. Harbin Institute Technol.(哈尔滨工业大学学报), 2004, 36(2):199-201 (in Chinese).

Niu S, Yan H. Novel silicone-based polymer containing active methylene designed for the removal of indoor formaldehyde [J]. J. Hazard. Mater., 2015, 287:259-267.

Daghrir R, Drogui P, Robert D. Modified TiO2 for environmental photocatalytic applications: A review [J]. Ind. Eng. Chem. Res., 2013, 52(10):3581-3599.

Schneider J, Matsuoka M, Takeuchi M, et al. Understanding TiO2 photocatalysis: Mechanisms and materials [J]. Chem. Rev., 2014, 114(19):9919-9986.

Hoang S, Berglund S P, Hahn N T, et al. Enhancing visible light photo-oxidation of water with TiO2 nanowire arrays via cotreatment with H2 and NH3: Synergistic effects between Ti3+ and N [J]. J. Am. Chem. Soc., 2012, 134(8):3659-3662.

Pu Y C, Wang G, Chang K D, et al. Au nanostructure-decorated TiO2 nanowires exhibiting photoactivity across entire UV-visible region for photoelectrochemical water splitting [J]. Nano Lett., 2013, 13(8):3817-3823.

Macwan D P, Dave P N, Chaturvedi S. A review on nano-TiO2 sol-gel type syntheses and its applications [J]. J. Mater. Sci., 2011, 46(11):3669-3686.

Andersson M, sterlund L, Ljungstroem S, et al. Preparation of nanosize anatase and rutile TiO2 by hydrothermal treatment of microemulsions and their activity for photocatalytic wet oxidation of phenol [J]. J. Phys. Chem. B, 2002, 106(41):10674-10679.

Zhang J B, Wang Y L, Dong S S, et al. Preparation of immobilized visible light response photocatalyst Er3+:YAlO3/TiO2-SAC and its photocatalytic activity [J]. Acta Energiae Solaris (太阳能学报), 2012, 33(8):1259-1300 (in Chinese).

Jasieniak J, Califano M, Watkins S E. Size-dependent valence and conduction band-edge energies of semiconductor nanocrystals [J]. ACS Nano, 2011, 5(7):5888-5902.

Hou D, Feng L, Zhang J, et al. Preparation, characterization and performance of a novel visible light responsivespherical activated carbon-supported and Er3+:YFeO3-doped TiO2 photocatalyst [J]. J. Hazard. Mater., 2012, 199:301-308.

Badawy M I, Ghaly M Y, Ali M E M. Photocatalytic hydrogen production over nanostructured mesoporous titania from olive mill wastewater [J]. Desalination, 2011, 267(2):250-255.

Daskalaki V M, Kondarides D I. Efficient production of hydrogen by photo-induced reforming of glycerol at ambient conditions [J]. Cata. Today, 2009, 144(1):75-80.

Chowdhury P, Malekshoar G, Ray M B, et al. Sacrificial hydrogen generation from formaldehyde with Pt/TiO2 photocatalyst in solar radiation [J]. Ind. Eng. Chem. Res., 2013, 52(14):5023-5029.

Views

158

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of Interfacial Modification for TiO₂-based Planar Perovskite Solar Cells Using NaTFSI

Improvement of TiO₂ Cathode Buffer Layer to The Performance of Rubrene/C₇₀ Organic Solar Cells

Preparation and Characterization of TiO₂: Tm,Yb Visible Light Responsive Nano-photocatalyst

TiO₂ Doped Alq₃ as Emitting Layer to Improve The Anti-aging Performance of OLED

Effects of Forbidden Bandwidth and Optical Absorption Coeffcient on Photocatalytic Ability of TiO₂

Related Author

Wei-hai SUN

Yu ZOU

Zhao LI

Heng-hui CHEN

Yi-chen LIU

An-ling TONG

Hui-ying YAN

Ruo-wei HE

Related Institution

Engineering Research Center of Environment-friendly Functional Materials, Ministry of Education, Fujian Key Laboratory of Photoelectric Functional Materials, Institute of Materials Physical Chemistry, College of Materials Science and Engineering, Huaqiao University

Siyuan Laboratory, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Department of Physics, Jinan University

Key Laboratory of The Three Gorges Reservoir Region's Eco-Environment, Chongqing University

Key Laboratory of Interface Science and Engineering in Advanced Materials, Taiyuan University of Technology

Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176862 Email：fgxbt@126.com
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰