Role of Fe species in geopolymer synthesized from alkali-thermal pretreated Fe-rich Bayer red mud

Hu Yong; Liang Sha; Yang Jiakuan; Chen Ye; Ye Nan; Ke Yan; Tao Shuangyi; Xiao Keke; Hu Jingping; Hou Houjie; Fan Wei; Zhu Suiyi; Zhang Yuanshang; Xiao Bo

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Role of Fe species in geopolymer synthesized from alkali-thermal pretreated Fe-rich Bayer red mud

机译：铁物种在碱热预处理富铁拜耳赤泥合成的地聚合物中的作用

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A geopolymer material was synthesized from alkali-thermal pretreated Fe-rich Bayer red mud (RM) and fly ash. Dissolution efficiencies of Al2O3 and SiO2 in the RM in alkaline solutions were improved by pretreatment. The transformation of mineral phases in the RM during synthesis of geopolymer was investigated by the alkaline leaching test, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The role of Fe species in geopolymerization was investigated by Mossbauer spectra. The results showed that binding energies of Al-O and Si-O increased in geopolymerization; the coordinated Fe3+ replaced Al3+ in the aluminosilicate structure of geopolymer. (C) 2018 Elsevier Ltd. All rights reserved.

机译：由碱热预处理的富铁拜耳赤泥（RM）和粉煤灰合成了地聚合物材料。通过预处理提高了RM在碱性溶液中Al2O3和SiO2的溶解效率。通过碱浸测试，X射线衍射（XRD），傅立叶变换红外光谱（FTIR）和X射线光电子能谱（XPS）研究了地质聚合物合成过程中RM中矿物相的转变。通过Mossbauer光谱研究了Fe物种在地聚中的作用。结果表明，Al-O和Si-O的结合能在地聚合中增加；在地质聚合物的铝硅酸盐结构中，配位的Fe3 +取代了Al3 +。（C）2018 Elsevier Ltd.保留所有权利。

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来源
《Construction and Building Materials》 |2019年第10期|398-407|共10页
作者
Hu Yong; Liang Sha; Yang Jiakuan; Chen Ye; Ye Nan; Ke Yan; Tao Shuangyi; Xiao Keke; Hu Jingping; Hou Houjie; Fan Wei; Zhu Suiyi; Zhang Yuanshang; Xiao Bo;
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作者单位

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China|Huazhong Univ Sci & Technol, State Key Lab Coal Combust, Wuhan 430074, Hubei, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China;

Jiangxi Acad Sci, Inst Sci Technol Strategy, Nanchang 330096, Jiangxi, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China;

Northeast Normal Univ, Jilin Engn Res Ctr Municipal Wastewater Treatment, Changchun 130117, Jilin, Peoples R China;

Northeast Normal Univ, Jilin Engn Res Ctr Municipal Wastewater Treatment, Changchun 130117, Jilin, Peoples R China;

Zhejiang Tiandi Environm Protect Technol Co Ltd, Hangzhou 311121, Zhejiang, Peoples R China;

Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Hubei, Peoples R China|Hubei Prov Engn Lab Solid Waste Treatment Disposa, Wuhan 430074, Hubei, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Bayer red mud; Alkali-thermal pretreatment; Geopolymer; Fe species;

机译：拜耳赤泥;碱热预处理;地聚合物;铁形态;

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1. Synthesis and properties of inorganic polymers (geopolymers) derived from Bayer process residue (red mud) and bauxite [J] . Siti Noor Md. Hairi, Guy N. L. Jameson, Joanne J. Rogers, Journal of Materials Science . 2015,第23期

机译：拜耳法渣（赤泥）和铝土矿衍生的无机聚合物（地聚合物）的合成与性能
2. Synthesis and properties of inorganic polymers (geopolymers) derived from Bayer process residue (red mud) and bauxite [J] . Hairi Siti Noor Md., Jameson Guy N. L., Rogers Joanne J., Journal of Materials Science . 2015,第23期

机译：拜耳法渣（赤泥）和铝土矿衍生的无机聚合物（地聚合物）的合成与性能
3. Synthesis and Characterization of Geopolymer from Bayer Red Mud with Thermal Pretreatment [J] . Nan Ye, Jiakuan Yang, Xinyuan Ke, Journal of the American Ceramic Society . 2014,第5期

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4. Effect of Alkaline Activators to Engineering Properties of Geopolymer - Based Materials Synthesized from Red Mud [C] . LE Van Quang, DO Quang Minh, HOANG Minn Duc International Conference on Advanced Materials and Engineering Materials . 2018

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5. Investigation of flotation as a method of clarification in Bayer red mud processing. [D] . Banton, Nicola Jane. 2002

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6. Physical and Chemical Properties of Sintering Red Mud and Bayer Red Mud and the Implications for Beneficial Utilization [O] . Ping Wang, Dong-Yan Liu 2012

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7. Red mud-based geopolymers with tailored alkali diffusion properties and pH buffering ability [O] . Guilherme Ascensão, Maria Paula Seabra, José Barroso Aguiar, 2017

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8. Effects of Drilling Mud on Seven Species of Reef-Building Corals as Measured in Field and Laboratory [R] . Thompson, J. H. 1980

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Role of Fe species in geopolymer synthesized from alkali-thermal pretreated Fe-rich Bayer red mud

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