Preparation and Photocatalytic Properties of Ho3+ Doping BiFeO3

doi:10.11944/j.issn.1000-0518.2019.01.180080

Chinese Journal of Applied Chemistry ›› 2019, Vol. 36 ›› Issue (1): 91-96.DOI: 10.11944/j.issn.1000-0518.2019.01.180080

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Preparation and Photocatalytic Properties of Ho³⁺ Doping BiFeO₃

LI Wenjin,YAO Weilong,XU Jiaxin,JIANG Qiying(),DENG Hongquan

School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang,Sichuan 621010,China

Received:2018-03-21 Accepted:2018-06-15 Published:2019-01-01 Online:2019-01-04
Contact: JIANG Qiying
Supported by:
Supported by the Sichuan's Training Program of Innovation and Entrepreneurship for Undergraduate(No.201810619019)

Abstract

Abstract:

In order to improve photocalytic property and enhance magnetism of BiFeO₃(BFO), nano-sized Bi_0.95Ho_0.05FeO₃(BHFO) particles were prepared through thermal decomposition of coordination precursor at 500 ℃. The material obtained was characterized by X-ray diffractometer(XRD), Fourier transfom infrared(FT-IR) spectrometer, dynamic reflectance spectrometer(DRS), vibrating sample magnetometer(VSM), and Zeta potential analyser. It exhibits rhombohedral R3c phase with a band gap of 1.90 eV, and its magnetism is 5 times stronger than BFO. With methyl orange(MO) as the degradation model, the influence factors on photocatalytic activity of BHFO was found to be affected by the oxidization and acid-base property of anions. At last, BHFO exhibits good photocatalytic stability and can be recovered by magnetical separation.

Key words: BiFeO₃, Ho³⁺, methyl orange, photo-catalysis, magnetic property

LI Wenjin, YAO Weilong, XU Jiaxin, JIANG Qiying, DENG Hongquan. Preparation and Photocatalytic Properties of Ho³⁺ Doping BiFeO₃[J]. Chinese Journal of Applied Chemistry, 2019, 36(1): 91-96.

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Preparation and Photocatalytic Properties of Ho³⁺ Doping BiFeO₃

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