Facile synthesis of lanthanum carbonate octahydrate and lanthanum oxide nanoparticles by sonochemical method: systematic characterizations
Abstract
This study could present the size and morphology of two synthesized nanoparticles (NPs) by observing their smallest possible dimensions. Lanthanum carbonate nanoparticles were synthesized by sonochemical method through the interaction of lanthanum acetate hydrate and sodium carbonate in an aqueous medium with a probe sonicator. After rigorous washing followed by drying, the La2(CO3)3·8H2O(S1) NPs were calcined at a temperature of 600 °C to obtain lanthanum oxide nanoparticles (S2). Both NPs were characterised through various instrumental techniques. PXRD study showed orthorhombic with space group of Pccn (56) and hexagonal phases with space group of
Comparative study of synthesized lanthanum carbonate and lanthanum oxide NPs with various techniques applied by other researchers.
| Sl. no. | Name of NPs | Methods | Conditions | Size of NP | Reference |
|---|---|---|---|---|---|
| 1 | La2(CO3)3·8H2O | Sonochemical method | Time: 25 min |
XRD: Pccn (56) a = 8.9840 Å b = 9.5800 Å c = 17.0000 Å |
This work |
| Temperature: 301 K | Size: 24.102 nm | ||||
| Starting materials: (a) La(CH3COO)2: 0.050 M (b) Na2CO3:0.050 M |
TEM: Size: 4–30 nm |
||||
| La2(CO3)3 | Reverse micelles | Time: 1 h |
XRD: Size: nanoparticles absent |
[20] | |
| Temperature: 303 K | |||||
| Starting materials: (a) Triton X-100 (b) Cyclohexane (c) n-butylalcohol (d) La(NO3)3(aq) e) NaCO3(aq) |
|||||
| La2(CO3)3·8H2O | Hydrothermal | Time: 2–5 days |
XRD: Pccn a = 8.984 Å b = 9.580 Å c = 17.00 Å |
[21] | |
| Temperature: 773 K | Size: nanoparticles absent | ||||
| Prepared by slow hydrolysis of La(CCl3COO)3 | |||||
| La2(CO3)3·1.4H2O | Hydrothermal | Time: 1 h 30 min | Structure unknown | [22] | |
| Temperature: 368 K | |||||
| Starting material: (a) La2O3 (b) HNO3 (c) Urea |
|||||
| La2(CO3)3·1.7H2O | Sonochemical | Time: 30 min |
XRD:
a = 8.990 Å c = 9.675 Å |
[23] | |
| Temperature: not specified | Size: not specified | ||||
| (a) La(OAC)3
(b) Na2CO3 |
TEM: Size: 25–35 nm |
||||
| Concentration: (a) La(OAC)3: 0.051 M (b) Na2CO3: 0.251 M |
|||||
| La2(CO3)3·5H2O | Hydrothermal | Time: |
XRD:
Pbca a = 9.0167 Å b = 12.842 Å c = 9.6331 Å |
[24] | |
| Temperature: | Size: not specified | ||||
| Starting materials: (a) La2O3 (b) HCl (c) Na2CO3 |
|||||
| La2(CO3)3·3.4H2O | Hydrothermal | Time: 3–4 h |
XRD:
P21212 a = 9.57 Å b = 12.65 Å c = 8.94 Å |
[25] | |
| Temperature: 298–308 K | Size: not specified | ||||
| Starting materials: (a) LaCl3 (b) NH4HCO3 |
|||||
| 2 | La2O3 | Thermal decomposition | Time: 2 h |
P3m1 a = 3.973 Å b = 3.9373 Å c = 6.129 Å |
[26] |
| Temperature: 1073 K | Size: 15 nm | ||||
| Starting material: La(OH)3 nanorods |
TEM: Size: 23 nm |
||||
| La2O3 | Thermal decomposition | Time: 2 h |
XRD: a = 11.347 Å |
[23] | |
| Temperature: 873 K | Size: 30 nm | ||||
| Starting material: La2(CO3)3·1.7H2O |
TEM: Size: 30 nm |
||||
| La2O3 | Thermal decomposition | Time: not specified | Not specified | [27] | |
| Temperature: 1198 K | |||||
| Starting material: (a) La(NO3)3·9H2O (b) NH4HCO3 |
|||||
| La2O3 | Thermal decomposition | Time: 4 h | Not specified | [28] | |
| Temperature: 1073 K | |||||
| Starting material: La(OH)3 | |||||
| La2O3 | Thermal decomposition | Time: 2 h |
a = 3.973 Å b = 3.9373 Å c = 6.129 Å |
This work | |
| Temperature: 873 K |
XRD: Size: 43.26 nm |
||||
| Starting material: La2(CO3)3·8H2O |
TEM: Size: 17–34 nm |
Acknowledgments
The authors acknowledge with thanks Council of Scientific and Industrial Research – North East Institute of Science and Technology (CSIR-NEIST), Jorhat, Assam for providing with the necessary materials and technical support for the research work, UGC for financial assistance and Department of Chemistry, Nagaland University, Lumami for Ph.D. studentship.
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Research ethics: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: None declared.
-
Data availability: The raw data can be obtained on request from the corresponding author.
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© 2024 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Original Papers
- Gamma radiation-induced degradation of Acid Violet 49 in the presence of hydrogen peroxide (H2O2) in an aqueous medium
- Oxygen doped g-C3N4/LDH composite as highly efficient photocatalyst for wastewater treatment
- Facile synthesis of lanthanum carbonate octahydrate and lanthanum oxide nanoparticles by sonochemical method: systematic characterizations
- Numerical study on the temperature dependence of soot formation in acetylene pyrolysis blended with methane, formaldehyde, methanol, and dimethyl ether
- The role of greenhouse gases in radiative equilibrium – Thermodynamic evaluation
- Ab initio study of surfaces of lead and tin based metal halide perovskite structures
- Experimental study of heat pipes for battery cooling technology in EVs
- Cellulose acetate sheet supported gold nanoparticles for the catalytic reduction of toxic organic pollutants
Artikel in diesem Heft
- Frontmatter
- Original Papers
- Gamma radiation-induced degradation of Acid Violet 49 in the presence of hydrogen peroxide (H2O2) in an aqueous medium
- Oxygen doped g-C3N4/LDH composite as highly efficient photocatalyst for wastewater treatment
- Facile synthesis of lanthanum carbonate octahydrate and lanthanum oxide nanoparticles by sonochemical method: systematic characterizations
- Numerical study on the temperature dependence of soot formation in acetylene pyrolysis blended with methane, formaldehyde, methanol, and dimethyl ether
- The role of greenhouse gases in radiative equilibrium – Thermodynamic evaluation
- Ab initio study of surfaces of lead and tin based metal halide perovskite structures
- Experimental study of heat pipes for battery cooling technology in EVs
- Cellulose acetate sheet supported gold nanoparticles for the catalytic reduction of toxic organic pollutants