Page 32 - 《水资源与水工程学报》2024年第5期
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2 & ' ( ) & * + , - 2024 $
8
k±ù={Þß
。Ì TCä CIP % q =qe - γε 2 (8)
e
m
µ@ 80mg/L |, ôePöû¢x@ 75%ä 53%, ε=RTln(1+1/c) (9)
e
Ð)1¢x@ 301ä 213mg/g; TCä CIP E =1/2 γ (10)
槡
S
%{¯c, Ð)1f¯e, %é 500 QQ:q @ôeÐ)1,mg/g;q@´ï|{Ð)
m
e
mg/L |Ð)1¢x@ 743 ä 794mg/g, 8| KFBC 1,mg/g;c@´ï|î,mg/L;b @ Langmuir
e
²E{¥9$CÖHä。 ´ï.,L/g;K @Ð).;n @Ð)Ï;
F
Ò%<¢xó!Q(5)~(7) ð Langmuir、 b ä K @ Temkin >».;R@gá¿.,
T t
Freundlich ä TemkinYV{Ð)·»uvZè¢ R =8.314J/(mol·K);T @Ð)·»{,K; γ
£, ó!Q(8)~(10) ð D-R(Dubinin-Radush @ [ ¶ 1 Ð ) È { ´ µ Ð ) 1 · ¨ { . ,
kevich) Ð)åYYVÐ)·»uvZ袣。 mol/J; ε@ Polanyi Ð)Í,J/mol,E @´µ+%
2
2
S
qbc 1,kJ/mol。
m
e
q = (5)
e
1+bc KFBCÐ) TCä CIP{ Langmuir、Freundlich、
e
1/n
q =c K F (6) Temkin ä D-RåÐ)YVZè°±ËÞ 14 ì
e
e
, ² 3 @ KFBCÐ) TCä CIP {³ 4 yYVå
RT
q = ln(Kc) (7) YZèB。
e
b t e
T
N 14 KFBCu TC# CIP v"×Øýwö÷à$
j 3 KFBC×Ø TCÓ CIP výw"éö÷£\
Langmuir YV Freundlich YV Temkin YV D-RYV
0=
q/ b/ K / q/ E/
F
m
s
m
R 2 1/n R 2 b T K t R 2 R 2
-1
-1
(mg·g ) (L·g ) (L·mg-1) (mg·g )(kJ·mol )
-1
-1
TC 920 0.0083 0.794 58.64 0.42 0.938 15.9 0.1700.818 2568.1 10.9 0.911
CIP 1874 0.0020 0.948 12.75 0.70 0.975 9.9 0.0430.852 6615.8 8.2 0.962
2
%² 3 *,Freundlich >»Zè{ R ½¢x ;, oÐ)·»*1·N{US'Ùñ¯c
@ 0.938ä 0.975, µàÁ, 3yYV{Zè° ½'。ð D-RYV[ Langmuir YVZè°±
±。ío Freundlich YVþ7èÁ-³ KFBCð Õ{ q, Í q þe, íX%Á
{,-/Í
m
m
TCä CIP {Ð), «o KFBCð TCä CIP{Ð º¨l,Langmuir YVX/ÁÐ)È\²Ej¢¯
)ÞßX¼¢¯SuµÐ), ]º??Xj¢¯ S{Ð)]w{, ] D-RYVX/ÁÐ)È4
SÐ)。¤·{%<D÷Ü,Freundlich >»Q{ 5Qºj(K{,-。¨%<²o, Ì E ùÁ 8
s
1/n ½VD、K ½Ve, Ð)V×uv [21] 。Ò kJ/mol |, kÐ)@ÞO; Ì E @ 8~16kJ/mol
s
F
%<Q,TCä CIP{ 1/n½µDÁ 1, ] K ½ |, .Ð)@Þ、 kÐ)@k; Ì E àÁ
s
F
e, h1o KFBC[ TCä CIP §wA·Ï{i 16kJ/mol |, Þß@.Ð) [22] 。² 3 Ü D-R
ä2, Ã TC{ 1/n ½D, o KFBCð TCÀÁ YVQ{ E ¢x@ 10.9ä 8.2kJ/mol, é 8~16
s
øbÐ), í[ÍBQ TC{Ð)1þe{°± kJ/mol §w, OÒ%<{Ð)·».Ð)@
¨l。8\,Temkin YVðÐ){Zèk±¨ Þ、 kÐ)@k。