Study of bentonite-sorbent isotherm

 
Figure - 4. At 50°C, PH=2.0 on the PEG-400 template (a) and pH=10.2 on SF ni on ni (b), the image of the 
surface of sorbents with applied loads is ЮКЦ-1 
It can be seen from the image that the sorbent 
pores obtained in the presence of templant PEG-
400 are evenly distributed over the surface and 
have the same dimensions, while the surface of 
the sorbents obtained in the presence of GMDA 
consists of nanoparticles with a monodisperse 
spherical morphology. 
 
 
Figure 6. Values obtained from the sorption of benzene vapors in mesogovacs 𝑝/𝑝𝑠/(Г(1−𝑝/𝑝𝑠)) = f(p/ps) 
correspondence to the linear equation Bet based on the graph f(p/ps). 
In adsorbents obtained in alkaline media, it 
was observed that the porosity size was 2.25 times 
smaller than in a porous sorbent obtained in acidic 
media, while the surface surface comparable to 
the aging surface was 1.15 times larger. The 
compatibility of isotherms obtained as a result of 
adsorption of benzene vapors at different relative 
pressures with the linear form of the BET equation 
was studied. 
𝑝/𝑝
𝑠
/(Г(1 − 𝑝/𝑝
𝑠
)) = 1/Г
𝑚
∙ 𝐶 + 𝐶 – 1/Г
𝑚
∙ 𝐶 ∙ (𝑝/𝑝
𝑠
) 
Using different relative pressure (p/ps), the sorbed 
amount of adsorbate 𝑝/𝑝𝑠/(Г(1−𝑝/𝑝𝑠)) = f(p/ps) 
graph f(p/ps) has been drawn up (Fig.6). The 
figures show that the sorbent samples taken at 50 
°C correspond to the linear form of the beta model 
of the benzene vapor adsorption Isotherms at 
different relative pressures.Calculations were 
performed on the basis of the adsorbed amount of 
benzene within the relative pressure p/ps=0.2÷0.8 
. It was found that the isotherm of the sorbent 
3125

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NEUROQUANTOLOGY | OCTOBER 2022 | VOLUME 20 | ISSUE 12 |PAGE 3120-3130| DOI: 10.14704/NQ.2022.20.12.NQ77313
Jamshed Madjidovich Kurbonov  et al / STUDY OF BENTONITE-SORBENT ISOTHERM 
7 
eISSN1303-5150
www.neuroquantology.com

sample obtained at pH = 2.0 has a degree of 
compatibility R
2
= 98.12, and in the sorbent 
obtained in an alkaline medium - 92.7%, which 
corresponds to the isotherm model. Also, based on 
the data obtained as a result of the experiment, 
sorbents 
were 
determined 
by 
saturation 
adsorption volumes (Vs), microgravity volume 
(W0), mesogravity volume (Wmez) and saturation 
volume (Vs) by benzene vapor (Table 3).