Utilisation of Biosilica as Active Silica Source for Metakaolin-Based Geopolymers
文献类型：期刊论文
| 作者 | Guo, Haozhe1,4,5; Huang, Zhihao3; Pantongsuk, Thammaros3; Yu, Ting2; Zhang, Baifa2; Luo, Jinghan3; Yuan, Peng2 |
| 刊名 | MINERALS
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 14期号:8页码:12 |
| 关键词 | geopolymers diatom diatomite biosilica sustainable materials |
| DOI | 10.3390/min14080816 |
| 英文摘要 | This study explores the potential of biosilica including diatom and diatomaceous earth as alternative silica sources for metakaolin-based geopolymers. Diatomaceous earth, composed of fossilised diatom frustules rich in amorphous silica, and diatoms, a sustainable source of renewable biosilica, are investigated for their effectiveness in enhancing geopolymer properties. Through detailed analyses including FTIR, XRD, and SEM, the study evaluates the impact of these biosilica sources on geopolymer compressive strength and microstructure, comparing them with conventional sodium silicate. Results show that diatoms exhibit significant promise, achieving 28-day strength up to 17.9 MPa at a 30% mass fraction, while diatomaceous earth reaches 26.2 MPa at a 50% addition rate, demonstrating their potential as active silica sources. Furthermore, the study elucidates the role of organic matter in biosilica on geopolymerisation, highlighting its influence on active silica release and the strength performance of products. This study proposes a novel pathway to enhance the sustainability of geopolymers through the utilisation of biosilica from diatoms, contributing to advancements in eco-efficient construction materials. |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001305977200001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81071]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Yu, Ting |
| 作者单位 | 1.Guangdong Acad Sci, Inst Resources Utilizat & Rare Earth Dev, Guangzhou 510650, Peoples R China 2.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab Dev & Comprehens Utilizat M, Guangzhou 510650, Peoples R China 5.State Key Lab Rare Met Separat & Comprehens Utiliz, Guangzhou 510650, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Haozhe,Huang, Zhihao,Pantongsuk, Thammaros,et al. Utilisation of Biosilica as Active Silica Source for Metakaolin-Based Geopolymers[J]. MINERALS,2024,14(8):12. |
| APA | Guo, Haozhe.,Huang, Zhihao.,Pantongsuk, Thammaros.,Yu, Ting.,Zhang, Baifa.,...&Yuan, Peng.(2024).Utilisation of Biosilica as Active Silica Source for Metakaolin-Based Geopolymers.MINERALS,14(8),12. |
| MLA | Guo, Haozhe,et al."Utilisation of Biosilica as Active Silica Source for Metakaolin-Based Geopolymers".MINERALS 14.8(2024):12. |
入库方式： OAI收割
来源：广州地球化学研究所
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