High-efficiency Biogenic Calcium Carbonate for Adsorption of Pb(II) and Methyl Orange from Wastewater

Xudong DU; Chengyuan TANG; Xiaoli YANG; Jianbo CHENG; Yuke JIA; Shubin YANG

doi:10.15541/jim20190349

Journals >Journal of Inorganic Materials >Volume 35 >Issue 3 >Page 315 > Article

Journal of Inorganic Materials
Vol. 35, Issue 3, 315 (2020)

High-efficiency Biogenic Calcium Carbonate for Adsorption of Pb(II) and Methyl Orange from Wastewater

Xudong DU¹, Chengyuan TANG¹, Xiaoli YANG², Jianbo CHENG¹, Yuke JIA¹, and Shubin YANG^1、*

Author Affiliations

¹School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China

²School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China

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DOI: 10.15541/jim20190349 Cite this Article

Xudong DU, Chengyuan TANG, Xiaoli YANG, Jianbo CHENG, Yuke JIA, Shubin YANG. High-efficiency Biogenic Calcium Carbonate for Adsorption of Pb(II) and Methyl Orange from Wastewater[J]. Journal of Inorganic Materials, 2020, 35(3): 315 Copy Citation Text

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1. TGA curve of oyster shell (A) and XRD patterns of oyster shell before and after calcination (B)

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Effect of adsorption time on the sorption of Pb(II) (A) and MO (B) by bio-CaCO3

2. Effect of adsorption time on the sorption of Pb(II) (A) and MO (B) by bio-CaCO₃

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3. Pseudo-first-order (A), pseudo-second-order (B), and Intraparticle diffusion model (C) fitting for Pb(II) sorption by bio-CaCO₃

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4. Effects of pH (A) and ionic strength (B) on Pb(II) sorption by bio-CaCO₃

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5. Adsorption isothermals of Pb(II) on bio-CaCO₃

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6. Plots of distribution coefficient against temperature for Pb(II) adsorption with different concentrations by bio-CaCO₃

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7. XRD patterns of bio-CaCO₃ after Pb(II) sorption (A) and structure image of cerussite (B)

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8. SEM images of bio-CaCO₃ before (A) and after Pb(II) sorption (B, C)

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9. MO removal percentage of bio-CaCO₃ and activated carbon

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10. SEM images of bio-CaCO₃ before (A) and after (B) MO sorption

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Element	Na	Mg	Al	Si	P	S	Cl	K	Ca	Fe	Cu	Sr
Mass fraction/wt%	1.10	0.28	0.04	0.11	0.09	0.21	0.29	0.02	97.43	0.07	0.03	0.33
Oxide	Na₂O	MgO	Al₂O₃	SiO₂	P₂O₅	SO₃	Cl	K₂O	CaO	Fe₂O₃	CuO	SrO
Mass fraction/wt%	1.25	0.39	0.07	0.19	0.17	0.43	0.24	0.02	96.92	0.06	0.02	0.24

Table 1. XRF results of oyster shell

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Adsorbents	BET area/(m²·g^-1)	Pore size/nm	Zeta potential/mV	Size/nm
Oyster shell	4.32	6.53	-31.0	836
Calcined oyster shell	4.93	6.22	-19.1	4156

Table 2. Physical property of oyster and calcined oyster

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Pseudo-first-order model			Pseudo-second-order model
R²	κ₁/min^-1	q_e/(mg∙g^-1)	R²	κ₂/min^-1	q_e/(mg∙g^-1)
0.477	0.00225	600.94	0.998	2.61×10^-5	2092.05

Table 3. Kinetic parameters of Pb(II) sorption by bio-CaCO₃

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K_d1/(mg∙g^-1∙min^-1/2)	K_d2/(mg∙g^-1∙min^-1/2)	K_d3/(mg∙g^-1∙min^-1/2)	C₁	C₂	C₃	R₁²	R₂²	R₃²
470.71	77.0	8.55	-220.39	1034.38	1747.0	1.0	0.95	0.78

Table 4. Intraparticle diffusion model constants and correlation coefficient for Pb(II) sorption by bio-CaCO₃

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T/℃	Langmuir			Freundlich
T/℃	Q_m/(mg∙g^-1)	K_L/(L∙mg^-1)	R²	K_F/(mg∙g^-1)	n	R²
25	1775.33	0.041	0.992	415.3	4.1	0.898
35	1415.94	0.059	0.998	441.1	5.1	0.876
50	1237.35	0.063	0.986	421.8	5.6	0.885

Table 5. Parameters of Pb(II) sorption by bio-CaCO₃ for Langmuir and Freundlich constants models

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[Pb(II)]_initial/(mol∙L^-1)	ΔH^θ/(kJ∙mol^-1)	ΔS^θ/(J∙mol^-1∙K^-1)	ΔG^θ/(kJ∙mol^-1)
[Pb(II)]_initial/(mol∙L^-1)	ΔH^θ/(kJ∙mol^-1)	ΔS^θ/(J∙mol^-1∙K^-1)	298 K	308 K	323 K
9.09×10^-4	-8.24	-14.92	-3.79	-3.64	-3.42
1.36×10^-3	-7.85	-16.35	-2.98	-2.81	-2.57
1.82×10^-3	-8.29	-19.33	-2.53	-2.33	-2.04
2.27×10^-3	-8.09	-20.06	-2.11	-1.91	-1.61
2.73×10^-3	-7.42	-18.98	-1.76	-1.57	-1.29
3.18×10^-3	-7.71	-20.77	-1.52	-1.31	-1.00
3.41×10^-3	-5.87	-15.04	-1.39	-1.23	-1.01
Average	-7.64	-17.92	-2.30	-2.11	-1.85

Table 6. Thermodynamic parameters for the adsorption of Pb(II) on bio-CaCO₃

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Adsorbents	C_{s max}/(mg·g^-1)	pH	T/K	Ref.
Activated carbon	21.80	6.0	303	[30]
GMZ bentonite	23.83	5.2	293	[31]
S_3.9%-g-C₃N₄	52.63	4.5	328	[32]
GO	937.65	4.4	298	[33]
r-GO	92.99	4.4	298	[33]
Tianjin oyster shell without calcination	1591	5.0	298	[14]
Guangzhou calcined oyster shell	1067	~7	298	[13]
Rushan calcined oyster shell	1775	5.0	298	This work

Table 7. Comparison of Pb(II) adsorption capacity of Bio-CaCO₃ with other adsorbents

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