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Green Synthesis and Mechanism of Mg—Al—CO3 Layered Double Hydroxides/Calcite Composite Powders from Dolomite
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Qian BAI1, Quan LIU2, Yupu CHAI3, Di WU2
Journal of the Chinese Ceramic Society | 2021, 49(4) : 793 - 798
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Journal of the Chinese Ceramic Society | 2021, 49(4): 793-798
Green Synthesis and Mechanism of Mg—Al—CO3 Layered Double Hydroxides/Calcite Composite Powders from Dolomite
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Qian BAI1, Quan LIU2, Yupu CHAI3, Di WU2
Affiliations
  • 1.BASF(China) Co.,Lit, Shanghai 200137, China
  • 2.China University of Geosciences (Beijing), Beijing 100083, China
  • 3.China Railway Construction Engineering Group Shandong Co. LTD, Qingdao 266000, Shandong, China

    • BAI Qian (1985-), female, Ph.D. E-mail:

About Author:

BAI Qian (1985-), female, Ph.D. E-mail:

Published: 2021-04-20 doi: 10.14062/j.issn.0454-5648.20200775
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Green synthesis of Mg-Al-CO3 layered double hydroxides/calcite composite powders (LDH/Cal) via the acid dissolution and co-precipitation process was investigated in this paper. This method uses dolomite as a source of magnesium, calcium, and carbon dioxide with no CO2 release in the process of preparation. LDH/Cal prepared under optimized conditions (acid dissolution temperature was 60℃, OH-/[Mg2++Al3+] mole ratio was 3.5∶1.0, Mg2+/Al3+ mole ratio was 3∶1, temperature and time of crystallization were 120℃ and 18 h, respectively) was characterized. LDH/Cal consists of LDH (39.5%) and calcite (60.5%). The calcite was regular and granular with a diameter of about 0.6 to 1.8 μm, and LDH contained well-defined plate-like particles with regular hexagonal shape, and sizes between 100 and 200 nm. The acid dissolution process of dolomite and the compound mechanism of LDH and calcite were discussed.

dolomite  /  layered double hydroxides  /  calcite  /  composite powders  /  green synthesis
白仟, 刘全, 柴玉朴, 吴迪. 以白云岩为原料制备Mg-Al-CO3类水滑石/方解石复合粉体及机理. 硅酸盐学报, 2021 , 49 (4) : 793 -798 . DOI: 10.14062/j.issn.0454-5648.20200775
Qian BAI, Quan LIU, Yupu CHAI, Di WU. Green Synthesis and Mechanism of Mg—Al—CO3 Layered Double Hydroxides/Calcite Composite Powders from Dolomite[J]. Journal of the Chinese Ceramic Society, 2021 , 49 (4) : 793 -798 . DOI: 10.14062/j.issn.0454-5648.20200775
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Year 2021 volume 49 Issue 4
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Article Info
doi: 10.14062/j.issn.0454-5648.20200775
  • Receive Date：2020-10-15
  • Online Date：2026-10-30
  • Published：2021-04-20
Article Data
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History
  • Received：2020-10-15
  • Revised：2020-11-07
Funding
Affiliations
    1.BASF(China) Co.,Lit, Shanghai 200137, China
    2.China University of Geosciences (Beijing), Beijing 100083, China
    3.China Railway Construction Engineering Group Shandong Co. LTD, Qingdao 266000, Shandong, China

Corresponding:

LIU Quan (1967-), male, Bachelor, Engineer. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
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Genus		 种数
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Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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