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Characterization of magnetic biochar amended with silicon dioxide prepared at high temperature calcination

Shams Ali Baig

Shams Ali Baig

  • Department of Environmental Sciences, COMSATS Institute of Information Technology (CIIT)Abbottabad, Pakistan
  • Department of Environmental Sciences, Abdul Wali Khan UniversityMardan, Pakistan
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Baig, Shams Ali
, 
Zimo Lou

Zimo Lou

Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang UniversityHangzhou, People's Republic of China
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Lou, Zimo
, 
Malik T. Hayat

Malik T. Hayat

Department of Environmental Sciences, COMSATS Institute of Information Technology (CIIT)Abbottabad, Pakistan
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Hayat, Malik T.
, 
Ruiqi Fu

Ruiqi Fu

Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang UniversityHangzhou, People's Republic of China
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Fu, Ruiqi
, 
Yu Liu

Yu Liu

Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang UniversityHangzhou, People's Republic of China
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Liu, Yu
 e 
Xinhua Xu

Xinhua Xu

Department of Environmental Engineering, College of Environmental and Resource Sciences, Zhejiang UniversityHangzhou, People's Republic of China
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Xu, Xinhua
  
10 ott 2016
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Categoria dell'articolo: Research Article
Pubblicato online: 10 ott 2016
Pagine: 597 - 604
Ricevuto: 16 dic 2015
Accettato: 01 giu 2016
DOI: https://doi.org/10.1515/msp-2016-0112
Parole chiave
© 2016 Shams Ali Baig et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

XRD patterns of (a) KGB, (b) MB, (c) MBC, (d) MBS and (e) MBSC.
XRD patterns of (a) KGB, (b) MB, (c) MBC, (d) MBS and (e) MBSC.

Fig. 2

FT-IR spectra of (a) KGB, (b) MB, (c) MBC, (d) MBS and (e) MBSC.
FT-IR spectra of (a) KGB, (b) MB, (c) MBC, (d) MBS and (e) MBSC.

Fig. 3

SEM images of (a) KGB, (b) MB, (c) MBC, (d) MBS and (e) MBSC.
SEM images of (a) KGB, (b) MB, (c) MBC, (d) MBS and (e) MBSC.

Fig. 4

Saturation magnetization of MB, MBC, MBS and MBSC samples under the applied magnetic field (−20000 Oe to 20000 Oe).
Saturation magnetization of MB, MBC, MBS and MBSC samples under the applied magnetic field (−20000 Oe to 20000 Oe).

Fig. 5

Thermogravimetric analyses (TGA) of MB, MBC, MBS and MBSC samples.
Thermogravimetric analyses (TGA) of MB, MBC, MBS and MBSC samples.

BET surface area, total pore volume and mean pore diameter of the samples_

SampleSA [m2·g−1]Total pore volume Vp[m3·g−1]Mean pore diameter [nm]
KGB35.340.0056.5
MB45.830.0242.1
MBC336.790.0212.5
MBS45.370.0242.1
MBSC125.170.0082.7

Elemental compositions of the samples (KGB, MB, MBC, MBS and MBSC) conducted by EDX analyses_

KGBMBMBCMBSMBSC
Elementwt.%at.%wt.%at.%wt.%at.%wt.%at.%wt.%at.%
C75.0781.7434.7452.3875.2887.0927.6943.7279.1589.36
N04.160.38802.8103.6305.2705.2302.6203.5503.6703.55
O14.8112.1028.1131.8204.2503.7032.2038.1804.2603.61
Na00.0000.0000.5700.4500.0000.0000.6800.5600.0600.03
Mg00.1400.0800.4000.3000.0400.0200.4400.3500.0800.04
Al00.0200.0100.3000.2000.0400.0200.3300.2300.0400.02
Si01.4600.6800.6400.4200.5400.2703.0802.0801.0400.50
P00.0700.0300.1700.1000.0100.0100.1400.0900.0300.01
S00.5300.2100.3800.2100.1200.0500.2700.1600.0800.03
Cl00.5200.1900.6500.3300.0600.0200.1600.0900.0500.02
K03.0001.0000.1300.0600.0600.0200.0900.0400.0500.02
Ca00.2300.0700.1300.0600.0700.0300.0000.0000.0500.02
Fe00.0000.0030.9810.0514.2403.5432.3110.9711.4502.78
MatrixCorrect.ZAFCorrect.ZAFCorrect.ZAFCorrect.ZAFCorrect.ZAF
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