Sintesis dan Karakterisasi Komposit PANI/CuO Untuk Aplikasi Sensor Pestisida

Sumaryanto, Aditya Dwihutama (2017) Sintesis dan Karakterisasi Komposit PANI/CuO Untuk Aplikasi Sensor Pestisida. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pestisida bermanfaat untuk melindungi tanaman, tetapi disisi lain pestisida sangat berbahaya pada kesehatan manusia. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan CuO pada komposit PANI/CuO terhadap morfologi, konduktivitas elektrik, dan kemampuan sensing terhadap pestisida. Polianilin disintesis dengan metode oksidasi kimia dan CuO telah tersedia dalam bentuk serbuk. Serbuk CuO ditambahkan ke dalam matriks polyaniline dengan 4 variasi sampel (0wt%, 10wt%, 20wt% dan 30wt%). Proses karakterisasi komposit dianalisa dengan alat Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD) dan Fourier Transform Infrared (FTIR). Kemudian dilakukan uji konduktivitas listrik arus DC dengan alat LCR meter dan uji sensing pestisida diketahui dengan mengukur perubahan resistivitas komposit. Hasil pengujian menunjukkan dengan semakin besarnya komposisi massa CuO terhadap komposit PANI/CuO mempengaruhi morfologi dari partikelnya menjadi terlihat lebih kasar. Selain itu, semakin besarnya komposisi massa CuO juga mempengaruhi nilai konduktivitas elektrik DC komposit PANI/CuO menjadi lebih kecil. Nilai konduktivitas elektrik yang tertinggi adalah sebesar 4.88x10-3 S/cm pada komposit PANI/CuO 0% dan yang terendah sebesar 5.94x10-6 S/cm pada komposit PANI/CuO 30%. Komposit PANI/CuO juga bereaksi apabila terpapar oleh pestisida jenis diklorvos. Reaksi yang dihasilkan komposit berupa kenaikan konduktivitas elektriknya. ================================================================ Pesticides have many uses for crops protection and pest exterminator. But pesticides have a downsides which is harmful if exposed to human due to it’s toxicity. Polyaniline is an intrinsically conductive polymers which changes it’s electrical and optical properties when doped / dedoping by certain dopant. Due to it’s unique properties, Polyaniline is a widely used material for gas sensors application. This research aims to analyze influence of CuO towards PANI/CuO composites to it’s morphology, electrical conductivity and sensing capability for pesticides. Polyaniline (PANI) is synthesized using chemical oxidation. In other hand, CuO is available in powder forms. CuO is added to Polyaniline matrix with three different variation, that is 0, 10, 20, and 30% of weight fraction. To create PANI/CuO composites, PANI and CuO is mixed in an ultrasonic cleaner then compressed to pellets using compaction method. Composites then characterized using Scanning Electron Microscopy, X-ray Dispersion Spectroscopy, and Fourier Transform Infrared. For electrical conductivity and sensing capability measured using LCR meter. From the research, increasing weight fraction of CuO in PANI/CuO composites shows rougher particle’s morphology. And increasing weight fraction in PANI/CuO composites lowers it’s electrical conductivity and the composites reacts to dichlorvos pesticides with increasing conductivity.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Polianilin, CuO, Komposit, Sensor Gas, Pestisida, Polyaniline, Gas sensors, dichlorvos, pesticides, electrical conductivity
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials
T Technology > TP Chemical technology > TP1140 Polymers
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: Sumaryanto Aditya Dwihutama
Date Deposited: 14 Sep 2017 08:13
Last Modified: 14 Sep 2017 08:13
URI: http://repository.its.ac.id/id/eprint/43626

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