dingxinda
Yeni Üye
Kayıt Tarihi: 2021-13-Ocak
Aktif Durum: Pasif
Gönderilenler: 30
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| Gönderen: 2021-16-Ocak Saat 05:29 | Kayıtlı IP
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One-step preparation of environment-oriented magnetic
coal-based activated carbon with high adsorption and
magnetic separation
performancewww.
coalactivatedcarbon.com
Environmentally friendly magnetic coal-based activated
carbon (MCAC) with high adsorption performance has been
synthesized by using a facile one-step method. The
samples were prepared with ratios of ferrocene to Ningxia
coking coal to be 0:1, 1:2, 1:1, 2:1 and 3:1 (denoted as
CAC, MCAC-1:2, MCAC-1:1, MCAC-2:1 and MCAC-3:1,
respectively). Scanning electron microscopy (SEM)
observation indicated that there were a large number of
pores with diameters below 500 nm on surface of the MCAC.
Magnetic properties of the samples were characterized by
vibrating sample magnetometer (VSM), with saturation
magnetizations of 9.55–22.48 emu/g. Due to the
activation of KOH and the introduction of magnetic
particles, the MCAC had a maximum specific surface area
of 1188.00 m2/g and a maximum total porosity of 0.50
cm3/g. As a result, the MCAC exhibited excellent
adsorption properties to remove methylene blue (MB),
wholesale
activated carbon with an adsorption capacity of
238.56 mg/g, while the adsorption rate was still 88%
after 5 cycles. Therefore, this strategy can be used as a
reference for the clean and efficient use of coal.
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Konu: Environment-oriented coal-based ac
