Rekayasa lempung dengan Surfaktan Benzalkonium Klorida dan Besi Klorida serta aplikasinya pada penjernihan minyak daun cengkeh

RITONGA, Pangoloan Soleman, Dr. Yateman Arryanto

2005 | Tesis | S2 Ilmu Kimia

Telah disintesis adsorben hasil rekayasa lempung alam Tulakan Pacitan. Rekayasa dilakukan dengan menginterkalasikan surfaktan benzalkonium klorida (BKC) sebagai templat organik dan besi klorida sebagai agen pemilar ke dalam lempung alam. Interkalat yang diperoleh dikalsinasi pada temperatur 400 °C. Lempung hasil rekayasa dikarakterisasi dengan spektroskopi inframerah, analisis serapan gas dan spektrofotometer serapan atom. Kapasitas adsorpsi lempung hasil rekayasa diuji terhadap proses penjernihan minyak daun cengkeh. Minyak daun cengkeh hasil adsorpsi dianalisis dengan kromameter dan kromatografi gas. Hasil penelitian menunjukkan bahwa adsorben lempung hasil rekayasa memiliki luas permukaan spesifik 48-55 m2/g, volume total pori 41-61 x 10-3 ml/g dan rerata jejari porinya 16-21 Å. Uji adsorpsi menunjukkan bahwa 0,5 gram adsorben lempung hasil rekayasa mampu menjernihkan 30 ml minyak daun cengkeh.

It has been done the synthesis of adsorbent, the engineering product of natural clay of Tulakan Pacitan. The engineering has been conducted by intercalating benzalkonium chloride surfactant as organic template and iron chloride as pillaring agent into the natural clay. The intercalation product was then calcinated at temperature 400 °C. The engineered clay was characterized with infra-red spectroscopy, gas sorption analyzer and atomic adsorption spectrofotometer. The capacity of adsorption of the engineered clay was tested for decolorization of crude clove oil. After adsorption, the clove oil was analyzed using chromameter and gas chromatography. The results showed that the engineered clay adsorbent had specific surface area 48-55 m2/g, total volume of pore 41-60 x 10-3 ml/g and average pore radius 16-21 Å. The adsorption test showed that 0.5 g of adsorbent could decolorize 30 ml of crude clove oil.

Kata Kunci : Kimia, Adsorben Lempung Rekayasa, Penjernihan Minyak Daun Cengkeh