<trans-title>Co-modification of Biochar and Bentonite for Adsorption and Stabilization of Pb<sup>2+</sup> ions </trans-title>

Yao XIAO; Zhongjie WU; Mei CUI; Rongxin SU; Lianke XIE; Renliang HUANG

doi:10.15541/jim20200745

Journal of Inorganic Materials, Volume. 36, Issue 10, 1083(2021)

Co-modification of Biochar and Bentonite for Adsorption and Stabilization of Pb²⁺ ions

Yao XIAO1... Zhongjie WU2, Mei CUI3, Rongxin SU3,4, Lianke XIE2 and Renliang HUANG4,* |Show fewer author(s)

Author Affiliations

¹1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China

²2. Shandong Electric Power Research Institute of Chinese Power Company, Jinan 250002, China

³3. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

⁴4. School of Marine Science and Technology, Tianjin University, Tianjin 300072, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(13)

1. SEM images of three biochars

Download full size

View in Article

2. XRD patterns of CB,CaO-CB and CaO-Bent-CB

Download full size

View in Article

3. FT-IR spectra of CB,CaO-CB and CaO-Bent-CB

Download full size

View in Article

4. Effect of different adsorbents on the removal of Pb²⁺ in the solution

Download full size

View in Article

5. Effect of solution pH on the absorption quatity and removal of Pb²⁺by CaO-Bent-CB

Download full size

View in Article

6. Effect of ionic strength on the removal of Pb²⁺ in the solution by CaO-Bent-CB

Download full size

View in Article

7. Effect of bentonite loading on the absorption quatity and removal of Pb²⁺ by CaO-Bent-CB

Download full size

View in Article

8. Adsorption kinetic curves for Pb²⁺ removal by CaO-Bent-CB

Download full size

View in Article

9. Adsorption isotherm curves for Pb²⁺ removal by CaO-Bent-CB

Download full size

View in Article

10. Lead concentrations in acid leachate with different adsorbents

Download full size

View in Article

Table 1. Specific surface area and pore size of biochars
View table
View in Article
Table 1. Specific surface area and pore size of biochars
Sample Specific surface area/(m²·g^-1) Average pore width/nm
CB 132.72 3.06
CaO-CB 177.22 3.63
CaO-Bent-CB 441.06 3.78

Table 2. Parameters of the kinetic model for the adsorption of Pb²⁺ by CaO-Bent-CB

View table

View in Article

Table 2. Parameters of the kinetic model for the adsorption of Pb²⁺ by CaO-Bent-CB

Sample	Q_e/(mg·g^-1)	Pseudo first-order kinetic model		Pseudo second-order kinetic model		Intraparticle diffusion kinetic model
Sample	Q_e/(mg·g^-1)	R²	k₁/min^-1	R²	k₂/(g·mg^-1·min^-1/2)	R²	k_id/(g·mg^-1·min^-1/2)
CaO-Bent-CB	88.616	0.887	0.0284	0.983	0.000484	0.851	1.923

Table 3. Thermodynamic parameters of the adsorption of Pb²⁺ by CaO-Bent-CB according to models
View table
View in Article
Table 3. Thermodynamic parameters of the adsorption of Pb²⁺ by CaO-Bent-CB according to models
Sample Q_max/(mg·g^-1) Langmuir adsorption model Freundlich adsorption model Temkin adsorption model
R² K_L/(L·g^-1) R² K_F/(mg·g^-1) R² K_T/(mg·g^-1) B
CaO-Bent-CB 232.167 0.989 0.00102 0.988 1.238 0.968 77.395 0.0671

Tools

Get Citation

Copy Citation Text

Yao XIAO, Zhongjie WU, Mei CUI, Rongxin SU, Lianke XIE, Renliang HUANG. Co-modification of Biochar and Bentonite for Adsorption and Stabilization of Pb²⁺ ions [J]. Journal of Inorganic Materials, 2021, 36(10): 1083

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites

Paper Information

Category: RESEARCH ARTICLE

Received: Dec. 30, 2020

Accepted: --

Published Online: Nov. 26, 2021

The Author Email: HUANG Renliang (tjuhrl@tju.edu.cn)

DOI:10.15541/jim20200745

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Specific surface area and pore size of biochars

Table 1. Specific surface area and pore size of biochars

Table 2. Parameters of the kinetic model for the adsorption of Pb2+ by CaO-Bent-CB

Table 2. Parameters of the kinetic model for the adsorption of Pb2+ by CaO-Bent-CB

Table 3. Thermodynamic parameters of the adsorption of Pb2+ by CaO-Bent-CB according to models

Table 3. Thermodynamic parameters of the adsorption of Pb2+ by CaO-Bent-CB according to models

微信扫一扫：分享

Table 2. Parameters of the kinetic model for the adsorption of Pb²⁺ by CaO-Bent-CB

Table 2. Parameters of the kinetic model for the adsorption of Pb²⁺ by CaO-Bent-CB

Table 3. Thermodynamic parameters of the adsorption of Pb²⁺ by CaO-Bent-CB according to models

Table 3. Thermodynamic parameters of the adsorption of Pb²⁺ by CaO-Bent-CB according to models