INTERKALASI HIDROKSI LAPIS GANDA DENGAN SENYAWA POLIOKSOMETALAT H3[α-PW12O40].nH2O dan APLIKASINYA SEBAGAI ADSORBEN CONGO RED

HANIFAH, YULIZAH and Lesbani, Aldes and Said, Muhammad (2017) INTERKALASI HIDROKSI LAPIS GANDA DENGAN SENYAWA POLIOKSOMETALAT H3[α-PW12O40].nH2O dan APLIKASINYA SEBAGAI ADSORBEN CONGO RED. Undergraduate thesis, Sriwijaya University.

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Abstract

Intercalation of polyoxometalate H3[α-PW12O40]·nH2O on layered double hydroxide by comparison weight rasio of layered double hydroxide : polyoxometalate H3[α-PW12O40]·nH2O, i.e: 1:1, 1:2, 1:3 and 1: 4 has been done. The results intercalated layered double hydroxide was characterized using FT-IR spectrophotometer, XRD and TG-DTA analysis. The research results using FT-IR spectrophotometer characterization shown the process of intercalation was not optimum for every weight ratio. Characterization using XRD showed the process of intercalation optimum at ratio (2: 1) that indicated the field (00l) consisting of reflection at (003), (006) and (110)were observed in the area 2θat 60o-63oshown layer double hydroxide were intercalated with polyoxometalate compound. Advanced characterization using TG-DTA analysis at comparison (2:1) showed loss of OH in the layer at 170 to 220°C and for the decomposition of the compounds polioksometalateH3[α-PW12O40]·nH2O at 300 to 400°C. The adsorption process of layered double hydroxide intercalated polioksometalat H3[α-PW12O40]·nH2Oat ratio (2: 1) shows the adsorption rate (k) of 0.81 min-1, the largest adsorption capacity (b) at 70°C is 5,42 mol/g, the largest adsorption energy at 70oC which is 0.6 kJ/mol. The value of the enthalpy (ΔH) and entropy (ΔS) decreased with increasing concentrations of the dye congo red. Effect of pH on the adsorption at pH 8 show the biggest of number congo red adsorbed is 38.1 mg/L.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Layered double hydroxide, intercalation, polioxometalate H3[α-PW12O40]·nH2O, congo red.
Subjects:	Q Science > QD Chemistry > QD1-999 Chemistry Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Mrs Dies Meirita Sari
Date Deposited:	27 Nov 2019 03:09
Last Modified:	27 Nov 2019 03:09
URI:	http://repository.unsri.ac.id/id/eprint/18711

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