Effect of Different Aluminum Substitution Rates on the Structure of Tobermorite
Abstract
:1. Introduction
2. Experimental Work
2.1. Chemicals and Synthesis
2.2. Characterization
2.3. Cation Adsorption Capacity
3. Results and Discussion
3.1. XRD and SEM–EDS
3.2. TG-DSC
3.3. FT–IR
3.4. 29Si and 27Al MAS–NMR
3.5. Adsorption Capacity
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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ppm | −78 | −82 | −88 | −93 |
---|---|---|---|---|
Si Sites | Q1, Q2(1Al) | Q2 | Q3(1Al) | Q3 |
Al/(Al + Si) = 0 | 20.96% | 66.56% | - | 12.48% |
Al/(Al + Si) = 0.1 | 19.85% | 57.29% | 13.44% | 9.43% |
Al/(Al + Si) = 0.2 | 39.03% | 47.47% | 11.60% | 1.90% |
- | Mass of Samples (g) | Volume of NaOH Solution (μL) | R(Na+) (mg/L) | c(Na+) (mol/L) | Adsorption Capacity (mmol/g) |
---|---|---|---|---|---|
NaOH solution | - | 1200 | 8.5 | 0.55 | - |
Al/(Al + Si) = 0 | 0.1509 | 1200 | 6.7 | 0.43 | 0.95 |
Al/(Al + Si) = 0.15 | 0.1504 | 1200 | 5.9 | 0.38 | 1.37 |
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Liao, W.; Li, W.; Fang, Z.; Lu, C.; Xu, Z. Effect of Different Aluminum Substitution Rates on the Structure of Tobermorite. Materials 2019, 12, 3765. https://doi.org/10.3390/ma12223765
Liao W, Li W, Fang Z, Lu C, Xu Z. Effect of Different Aluminum Substitution Rates on the Structure of Tobermorite. Materials. 2019; 12(22):3765. https://doi.org/10.3390/ma12223765
Chicago/Turabian StyleLiao, Wei, Wenqing Li, Zhenggang Fang, Chunhua Lu, and Zhongzi Xu. 2019. "Effect of Different Aluminum Substitution Rates on the Structure of Tobermorite" Materials 12, no. 22: 3765. https://doi.org/10.3390/ma12223765