Synthesis of Metastable Vaterite Phase of CaCO3via Ethanol-calcium Method and Ethanol-water Binary Solvent Method

Chuan-Jie CHEN; Li-Geng WEI; Yue WU; Cheng-Pei HU; Yuan-Cong HU; Jiu-Xin JIANG

doi:10.15541/jim20180472

Journals >Journal of Inorganic Materials >Volume 34 >Issue 7 >Page 755 > Article

Journal of Inorganic Materials
Vol. 34, Issue 7, 755 (2019)

Synthesis of Metastable Vaterite Phase of CaCO₃via Ethanol-calcium Method and Ethanol-water Binary Solvent Method

Chuan-Jie CHEN¹, Li-Geng WEI¹, Yue WU¹, Cheng-Pei HU¹, Yuan-Cong HU¹, and Jiu-Xin JIANG^{1、2、3、*}

Author Affiliations

¹Hubei Provincial Key Laboratory of Green Materials for Light Industry, Hubei University of Technology, Wuhan 430068, China

²Collaborative Innovation Center of Green Light-weight Materials and Processing, Hubei University of Technology, Wuhan 430068, China

³School of Material and Chemistry Engineering, Hubei University of Technology, Wuhan 430068, China

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DOI: 10.15541/jim20180472 Cite this Article

Chuan-Jie CHEN, Li-Geng WEI, Yue WU, Cheng-Pei HU, Yuan-Cong HU, Jiu-Xin JIANG. Synthesis of Metastable Vaterite Phase of CaCO₃via Ethanol-calcium Method and Ethanol-water Binary Solvent Method[J]. Journal of Inorganic Materials, 2019, 34(7): 755 Copy Citation Text

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XRD patterns of CaCO3 prepared from ethanol-calcium method (a-e) and EWBS method (f-j) after aging for different time

1. XRD patterns of CaCO₃ prepared from ethanol-calcium method (a-e) and EWBS method (f-j) after aging for different time

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SEM images of CaCO3 prepared from ethanol-calcium method (a-d) and EWBS method (e-h) after aging for different times

2. SEM images of CaCO₃ prepared from ethanol-calcium method (a-d) and EWBS method (e-h) after aging for different times

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3. XRD patterns of CaCO₃ prepared from ethanol-calcium method (a-e) and EWBS method (f-j) at different reaction temperatures

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4. SEM images of CaCO₃ prepared from ethanol-calcium method (a-e) and EWBS method (f-j) at different reaction temperatures

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5. The reaction process of ethanol-calcium method

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Aging time/min	Temperature/℃	*Polymorphs/%		**Polymorphs/%
Aging time/min	Temperature/℃	Vaterite	Calcite	Vaterite	Calcite
0	20	90.4	9.6	46.5	53.5
20	20	84.4	15.6	12.3	87.7
90	20	83.5	15.9	10.5	89.5
1320	20	82.5	17.5	0	100
2520	20	81.4	18.6	0	100
60/10^#	0	85.8	14.2	57.1	42.9
60/10^#	20	84.1	15.9	44.3	55.7
60/10^#	40	73.3	26.7	22.6	77.4
60/10^#	60	70.2	29.8	0	100
60/10^#	80	64.8	35.2	0	100

Table 1. Phase compositions of CaCO₃ prepared at different conditions

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