ADSORPTION AND DESORPTION METAL Cu(II) USING ZEOLITE SYNTHETIC BY BOTTOM ASH COAL MODIFIED DITHIZONE Yuan Sidarta, Khamidinal, Didik Krisdiyanto Faculty of Sains and Technology UIN Sunan Kalijaga Yogyakarta E-Mail : yuan.sidarta@yahoo.co.id Characterization
Introduction
Metode Penelitian
Industrial activity resulted increasing the amount of waste that can harm the environment
Synthesis zeolite by bottom ash coal 10 gram Abu Dasar
Bottom ash coal
Adsorption
100 mL HCl pekat
Direfluks, 4 jam, T=
Metal Cu(II)
15 mL larutan Cu(II) 150 ppm
80OC
Dimasukkan
2,5 gram pelet NaOH
Abu Dasar Hasil Refluks
Erlenmeyer 50 mL
Dilebur pada suhu 550 OC , 1 jam
Adsorpsi and Desorpsi
Zeolite synthetic
Fourier Transform Infra Red (FTIR)
15 mL Akuades
Bejana teflon
X-ray Diffraction (XRD)
campuran
Diaduk 24 jam
10 mL Natrium Silikat
0,15 g adsorben
Diaduk
Abu Dasar hasil peleburan
Zeolite synthetic (a) and zeolite modified dithizon (b)
Bottom ash refluks
Disaring dan dianalisis AAS
Padatan
Zeolite modified dithizone
Dithizon structure
•Disaring, •Dinetralkan dengan akuades, •Dikeringkan suhu 100 oC 1 jam
Zeolit Sintesis
Desorption 10 ml Cu(II)
HOW? - CHARACTERISTICS OF BOTTOM ASH COAL, ZEOLITE SYNTHETIC AND ZEOLITE MODIFIED DITHIZONE - EFFECT OF pH Adsorption ZD, Z-AD OF METAL ION CU(II) - KINETICS, THERMODYNAMICS EQUILIBRIUM AND METAL ADSORPTION OF Cu(II) -DESORPSI ON ZEOLITE SYNTHETIC AND ZEOLITE MODIFIED DITHIZON
Synthesis zeolite modified dithizon
5 g zeolit
2, 56 gram Ditizon + 400 mL Etanol 96%
500 mL labu bulat
Senyawa
* Knowing the basic characteristics of coal ash (AD) , zeolite synthesis (Z-AD) and the zeolite modified dithizone (ZD) . * Determine the influence of pH adsorption Z-AD and ZD of the metal ions Cu(II) . * Knowing the kinetics, equilibrium and thermodynamics of the adsorption of Cu(II). * Knowing Desorption of Cu(II) with zeolite synthesized and zeolite modified dithizone.
Residu
10 gram Zeolit Sintesis
AAS
Research purpose
X-Ray Fluorescence (XRF) The composition of the compounds in table bottom ash results reflux
Campuran Filtrat
Campuran
Erlenmeyer
10 mL H20 ; HCl & Na2EDTA
Kadar (%berat) 82,1 8,45 3,74 1,31 1,23 1,18 0,87
SiO2 Al2O3 TiO2 Fe2O3 SO3 Cl
K2O
Senyawa P2O5
CaO ZrO2 Cr2O3 NiO MnO CuO
Kadar (%berat) 0,58 0,31 0,09 0,09 0,02 0,02 0,01
Campuran AAS
Zeolit Termodifikasi Ditizon
The composition of the compounds zeolit syntetic dan zeolite modified dithizone No
Senyawa
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
SiO2 Al2 O3 TiO2 Fe2 O3 SO3 MgO K2O Cl CaO P2 O5 La2 O3 ZrO2 CrO3 NiO CuO MnO Y2O3 SrO ZnO PbO Bi2O3 Ga2O3 Nb2 O5
Kadar Zeolit (%) Termodifikasi ditizon 64,00 19,01 5,66 2,35 6,47 0,63 0,52 0,34 0,29 0,18 0,24 0,11 0,05 0,02 0,01 0,02 0,02 -
Sintesis 65,79 18,00 7,07 2,80 1,12 1,09 0,90 0,83 0,66 0,51 0,41 0,32 0,22 0,06 0,04 0,03 0,02 0,02 0,02 0,02 0,01 0,01 0,01
Gas Sorption Analyzer (GSA) Table of surface area specific, total volum pore and the average pore finger zeolite synthetic (ZAD) and zeolite modified dithizone (ZD) Janis sampel
Luas permukaan spesifik (m2 /g) 160,262 69,609
Zeolit sintesis Zeolit-ditizon
Result of Adsorpsi
Volume total pori (cc/g) 2,188x10-1 1,84x10-1
Rerata jari pori (Å) 2,73065x 101 5,30304x101
Table of presentase pore distribution zeolite syntetic and zeolite modified dithizon.
CONCLUSION 1. Synthesis of zeolite from coal bottom ash with a smelting - hydrothermal method has been successfully carried out 2. Zeolite synthesis zeolite obtained similar material ( zeolite -like ) is zeolite Y , sodalite , zeolite Na - P and zeolite X. 3. The modified zeolite showed ditizon successfully synthesized with -NH and -SH group at wave number 1496.76 and 2461.17 cm - 1 4. The results obtained in the characterization ditizon GSA reflect the addition of zeolites to lower the specific surface area of 160.262 m? g to 69.609 m? g . 5. Based on the adsorption kinetics model , modified zeolites and zeolite synthesis ditizon followed pseudo second-orde r kinetic model , with R2 respectively 0.7378 and 0.8689 . The second -order rate constant pseudo synthetic zeolite is -0.017 g / mg.min - 1 and modified zeolite ditizon of -0.013 g / mg.min - 1 6. Ion adsorption isotherms of Cu ( II ) using a synthetic zeolite and modified zeolite ditizon follows the Langmuir isotherm models , with R2 respectively 0.9983 and 0.9897 . Rated maximum adsorption capacity of zeolite synthesis is 0.975 mg / g and a modified zeolite ditizon amounted to 1,060 mg / g . 7. Thermodynamic models adsorption of Cu ( II ) by synthetic zeolite and modified zeolite dithizone generating Gibbs free energy is positive ( endothermic reaction ) . Energy entropy negative value indicates the regularity of the adsorbent and adsorbate systems . 8. The optimum condition of adsorption of Cu ( II ) by zeolite synthesis is pH 7 , a time of 150 minutes , the concentration of 10 ppm and a temperature of 50 oC while the adsorption of Cu ( II ) by zeolite modified ditizon pH 7 , 120 minutes , the concentration of 10 ppm and temperature 30 oC . 9. desorption results on zeolites and zeolite modified ditizon . Desorption results using HCl , Na 2 EDTA and distilled water are respectively 41.49 ; 29.36 ; and < 0.01 % . While the modified zeolite ditizon amounted to 47.08 ; 36.75 ; and < 0.01
Zeolite synthetic (blue) and zeolite modified dithizon (red)
Bottom ash refluks
Kinetic adsorption zeolite synthetic and zeolite modified dithizon
Influence of pH solution in adsorption metal Cu(II)
Jenis sampel Zeolit sintesis Zeolit-ditizon
Mikropori (%) 4,90 4,69
Mesopori (%) 73,84 79,68
Makropori (%) 21,26 15,63
Result of Desorption Grafik pseudo orde 1
Grafik pseudo orde 2
Isoterm adsorption zeolite synthetic and zeolite modified dithizon
Grafik pengaruh pH terhadap adsorpsi logam Cu(II)
Termodinamika adsorption zeolite synthetic and zeolite modified dithizon
Adsorben
Jumlah Cu(II) terdesorpsi (%) HCl
Na2EDTA
H 2O
Zeolit sintesis
41.49
29.36
< 0,01
Zeolit termodifikasi ditizon
47.08
36.75
< 0,01
Suggestion 1. Needs to be done adsorption of other heavy metals , especially middle- class acid until soft .
Grafik isoterm Langmuir pada adsorben : (a) zeolit sintesis dan (b) zeolit termodifikasi ditizon Grafik hubungan antara ln Kads dengan 1/T
2. Conducting further research to characterize the surface morphology analysis before and after the synthetic zeolite modified using SEM .