Q. Y. He

Central South University

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Shihui Si

Central South University

Xingsen Gao

South China Normal University

Pengfei Ding

Taizhou Vocational and Technical College

L. Li

Collaborative Innovation Center of Advanced Microstructures

P. W. Wang

Peking University

J.-M. Liu

Collaborative Innovation Center of Advanced Microstructures

Ming Zhu Xu

Zhejiang Province Institute of Architectural Design and Research

Ji Fan

University of Chinese Academy of Sciences

Y. J. Guo

Sichuan University

Jiancheng Zhao

University of Chinese Academy of Sciences

Cooperative Institutions

Nanjing University

Collaborative Innovation Center of Advanced Microstructures

Chinese Academy of Sciences

South China Normal University

Huazhong University of Science and Technology

University of Chinese Academy of Sciences

International Centre for Materials Physics

Peking University

George Mason University

Sichuan University

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The modification and application of Sewage Sludge based in heterogeneous Fenton-like system

E3S Web of Conferences (2019)

Q. Y. He Jie Zhao Ming Zhu Xu Jing Tao Peipei Zhang

In this study, dewatered domestic sewage sludge of moisture content of 65.6% was used as a pore-forming agent to sinter Ceramics with kaolin clay, coal ash and sodium silicate at 1050-1100 oC for 20 min. The weight percentage of sludge of total dried solids was 60% with pore rate >45% and compressive >20 MPa. The Ceramics could be used as catalysts in heterogeneous Fenton-like system to treat phenol wastewater through modification by FeSO 4 solution. After reaction with ceramics catalyst for 2.5 h, phenol removal of the wastewater could reach 99.87% from 100 mg/L to 0.13 mg/L and the COD removal is 85.75%. The performance of this catalyst was stable and had no significant in 30d repeat experiments.

Sewage sludge

10.1051/e3sconf/201913607026

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Application of permeable reactive barrier in groundwater remediation

E3S Web of Conferences (2019)

Q. Y. He Shihui Si Jun Yang Xiaoyu Tu

As a new in-situ remediation of groundwater, compared with the traditional “pump and treat” technology, the permeable reactive barrier (PRB) has the advantages of low cost, no external power, the small disturbance to groundwater, small secondary pollution and long-term operation, this paper introduces the basic concept of PRB, technical principle, structure type, the principle of active materials selection and mechanisms of remediation, design and installation factors, it provides ideas for further research and application of PRB technology in groundwater remediation projects in China.

Permeable reactive barrier

Groundwater Remediation

Contaminated groundwater

10.1051/e3sconf/201913606021

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Influence of Co:Mn ratio on multiferroicity of Ca(3)Co(2-x)Mn(x)O(6) around x similar to 1

Pengfei Ding L. Li Jia Guo Q. Y. He Xingsen Gao

A series of polycrystalline Ca(3)Co(2-x)Mn(x)O(6) with 0.93 < x < 1.07 are prepared in order to investigate the effect of Co:Mn ratio around x similar to 1.0 on the multiferroicity. It is found that the ferroelectric polarization P at low temperature shows significant dependence on the Co:Mn ratio, forming a V-shaped pattern with the lowest point at x similar to 0.99. It is proposed that the suppression of P with the Co:Mn ratio approaching to the best Co/Mn order originates from the disruption of the long range spin order. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3464289]

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Influence of Co:Mn ratio on multiferroicity of Ca3Co2−xMnxO6 around x∼1

Applied Physics Letters (2010)

Pengfei Ding L. Li Y. J. Guo Q. Y. He Xingsen Gao

A series of polycrystalline Ca3Co2−xMnxO6 with 0.93<x<1.07 are prepared in order to investigate the effect of Co:Mn ratio around x∼1.0 on the multiferroicity. It is found that the ferroelectric polarization P at low temperature shows significant dependence on the Co:Mn ratio, forming a V-shaped pattern with the lowest point at x∼0.99. It is proposed that the suppression of P with the Co:Mn ratio approaching to the best Co/Mn order originates from the disruption of the long range spin order.

10.1063/1.3464289

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An investigation on magnetism, spin–phonon coupling, and ferroelectricity in multiferroic GdMn2O5

Applied Physics A (2009)

Chengliang Lu Ji Fan Huimei Liu Kang Xia Kefeng Wang

Magnetism

10.1007/s00339-009-5133-2

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Multiferroicity and phase transitions in Tm-substituted GdMnO3

Journal of Applied Physics (2012)

L. Li Liangcai Lin Z. B. Yan Q. Y. He J.-M. Liu

The multiferroic behaviors of polycrystalline Gd1−xTmxMnO3 are investigated by measuring the structural, magnetic, dielectric, and ferroelectric properties. Remarkable polarization is observed by partial Tm-substitution of Gd ions, and can be proposed to arise from the contribution of both the symmetric exchange striction (S·S term) and asymmetric exchange striction (S × S term) in the ab-plane cycloidal structure at low substitution level. With further substitution, the polarization is gradually reduced, and it is suggested that the ferroelectric phase evolves from the ab-plane cycloidal structure to the bc-plane cycloidal structure where only the antisymmetric exchange striction (S × S term) contributes to the polarization.

Antisymmetric relation

10.1063/1.4745885

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Removal of vanadium from vanadium-containing wastewater by amino modified municipal sludge derived ceramic

Saudi Journal of Biological Sciences (2016)

Q. Y. He Shihui Si Jiancheng Zhao Haiyan Yan Biyu Sun

In this work, an amino modified porous ceramic derived from municipal sludge was synthesized for the adsorption of vanadium (V) from wastewater. In this approach, a maximum vanadium (V) removal of 99.8% can be achieved by using 800 g adsorbent with a height of 800 mm when the initial concentration of vanadium (V) was 50 mg/L, pH was 4, flow rate was 5 L/h.

10.1016/j.sjbs.2016.08.016

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Citations (29)