The Characterization of Plastic Automobile Bumper Bars Using Fourier Transform Infrared Spectroscopy (FTIR), Pyrolysis Gas Chromatography (PGC), and Energy Dispersive X-Ray Microanalysis Combined with a Scanning Electron Microscope (SEM-EDX)

Telah dilakukan sintesis dan karakterisasi membran ZSM-5 dengan penyangga kasa jenis 304 ukuran 200 dan 400 mesh dan jenis kasa AISI 316 ukuran 180 mesh. Tujuan penelitian ini adalah mensintesis membran ZSM-5 dengan penyangga kasa jenis 304 ukuran 200 dan 400 mesh dan jenis kasa AISI 316 ukuran 180 mesh dan mengkarakterisasi membran ZSM-5 hasil sintesis. Sintesis membran dilakukan dengan cara melapiskan prekursor ZSM-5 (coating) pada penyangga kasa yang telah diberi perlakuan dan dipanaskan pada suhu 90 °C selama 4 hari. Selanjutnya, membran yang dihasilkan dikarakterisasi engan metoda X-ray diffraction (XRD), scanning electron microscope-energy dispersive spectroscopy (SEM-EDS) dan Fourier-transform infrared (FTIR). Hasil citra SEM-EDS menunjukkan bahwa ukuran membran ZSM-5 yang semakin besar, menghasilkan jumlah lubang atau pori semakin banyak dengan luasan pori yang semakin kecil. Pola difraksi XRD menunjukkan bahwa membran yang dihasilkan mempunyai intensitas tertinggi pada 2 8º dan 23º yang merupakan karakteristik dari ZSM-5. Hasil spektra FTIR menunjukkan adanya serapan pada bilangan gelombang 450 cm-1yang merupakan ciri khas membran ZSM-5.Characterization of ZSM-5 Membranes Synthesized by Variation of Support Types and Sizes. Synthesis and characterization of ZSM-5 membrane were carried out with 304 type 200 and 400 mesh gauze supports and 180 mesh AISI 316 gauze types. The purpose of this study was to synthesize ZSM-5 membrane with 304 type 200 and 400 mesh gauze support and AISI 316 type 180 mesh size 180 mesh and characterize the synthesized ZSM-5 membrane. Membrane synthesis was carried out by coating the pre-treated gauze support with the ZSM-5 precursor and was heated at 90 °C for 4 days. Furthermore, the resulting membrane was characterized by X-ray diffraction (XRD), scanning electron microscope-energy dispersive spectroscopy (SEM-EDS) dan Fourier-transform infrared (FTIR). The SEM-EDX analysis shows that the increasing of ZSM-5 membrane size allowed pores number to increase with smaller pore surface area. The X-ray Diffraction pattern (XRD) shows that the resulting membrane has the highest intensity at 2 of 8º and 23º as the characteristics of ZSM-5. The FTIR spectra results show absorption at wavenumbers 450 cm-1 which is a characteristic of ZSM-5 membranes.

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Penggunaan ZnO/zeolit sebagai katalis dalam degradasi tartrazin secara ozonolisis

Jurnal Riset Kimia ◽

10.25077/jrk.v12i1.387 ◽

2021 ◽

Vol 12 (1) ◽

pp. 53-64

Author(s):

Zilfa Zilfa ◽

Safni Safni ◽

Febi Rahmi

Keyword(s):

Fourier Transform ◽

Infrared Spectroscopy ◽

Electron Microscope ◽

Natural Zeolite ◽

Zeolite Catalyst ◽

X Ray Diffraction ◽

X Ray ◽

Zeolite Structure ◽

Scanning Electron

An investigation on modification of natural zeolite with ZnO for the degradation of tartrazine. In this study, ZnO as a semiconductor is modified into a natural zeolite as support to form ZnO/zeolite that can increase the efficiency degradation of tartrazine. Further, the formed catalyst was added to tartrazine by determining the variation in ozonolysis time, the amount of addition of the catalyst, and the addition of a catalyst time. The results of degradation were determined by UV-Vis spectrophotometer at 424 nm. The result showed that the percentage of degradation obtained on each catalyst in the degradation. The resulted percent degradation of 20 ml of tartrazine at concentration of 15 mg/L using 20 mg ZnO/zeolite was 56.80%, while using 0.77 mg ZnO was 42.25%, and with the addition of 19.23 mg of Zeolite was 31.18%, all of that condition was proceeded by 40 minutes of ozonolysis. Thus, the result indicates that the ZnO/zeolite catalyst can increase percentages of tartrazine degradation by ozonolysis. It is known that the catalyst ZnO/zeolite is very effective in increasing the degradation of tartrazine. Analysis of tartrazine compounds using fourier-transform infrared spectroscopy (FTIR) after degradation changes in wavenumber indicates that there is a breaking of the bonds of tartrazine compounds. Characterization of ZnO/zeolite catalyst using FTIR, X-Ray diffraction (XRD) and scanning electron microscope (SEM), in each spectrum there was no shift, indicating that there is no change in ZnO/zeolite structure

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Characterization of structure of comblike polymer by pyrolysis gas chromatography and Fourier transform infrared spectroscopy

Journal of Applied Polymer Science ◽

10.1002/app.1446 ◽

2001 ◽

Vol 81 (2) ◽

pp. 359-363 ◽

Cited By ~ 3

Author(s):

Rui Yang ◽

Guoping Li ◽

Kunhua Wang

Keyword(s):

Gas Chromatography ◽

Fourier Transform ◽

Infrared Spectroscopy ◽

Fourier Transform Infrared Spectroscopy ◽

Fourier Transform Infrared ◽

Pyrolysis Gas ◽

Pyrolysis Gas Chromatography

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Μελέτη απολιθωμάτων αρκούδας από το σπήλαιο Λουτρών Αλμωπίας με χρήση ισοτοπικών μεθόδων και διαγενετικών δεικτών

10.12681/eadd/37442 ◽

2016 ◽

Author(s):

Νικολέτα Ζήση

Keyword(s):

Fourier Transform ◽

Infrared Spectroscopy ◽

Electron Microscope ◽

Scanning Electron Microscope ◽

Fourier Transform Infrared Spectroscopy ◽

Ursus Arctos ◽

Fourier Transform Infrared ◽

X Ray Diffraction ◽

X Ray ◽

Scanning Electron

Στην παρούσα διατριβή μελετήθηκαν οστά και δόντια αρκούδας του είδους U. ingressus πλειστοκαινικής περιόδου, που εντοπίστηκαν κατά τη διάρκεια παλαιοντολογικών ανασκαφών στο Σπήλαιο Λουτρών Αλμωπίας, για την εξαγωγή συμπερασμάτων σχετικών με τη δίαιτα του εξαφανισμένου αυτού είδους και την ανασύσταση των παλαιοπεριβαλλοντικών συνθηκών. Για να διαπιστωθεί η καταλληλότητα των απολιθωμένων δειγμάτων και η αυθεντικότητα του ισοτοπικού τους σήματος, πραγματοποιήθηκε λεπτομερής διαγενετική μελέτη. Στη συνέχεια αναλύθηκαν ισοτοπικά απολιθωμένα οστά και δόντια, σύγχρονα οστά και δόντια, νερά της περιοχής όπου διαβιώνει σήμερα η καφέ αρκούδα (Ursus arctos) και νερά της περιοχής του Σπηλαίου Λουτρών Αλμωπίας. Στο πλαίσιο της διαγενετικής μελέτης, το σύνολο των απολιθωμένων δειγμάτων εξετάστηκε με τις μεθόδους της περίθλασης ακτίνων-Χ (X-Ray Diffraction – XRD), φασματοσκοπίας υπερύθρου με μετασχηματισμό Fourier (Fourier Transform - InfraRed spectroscopy, FTIR) και ηλεκτρονικής μικροσκοπίας σάρωσης (Scanning Electron Microscope - SEM). Οι ίδιες μέθοδοι εφαρμόστηκαν και σε δείγματα οστών και δοντιών της σύγχρονης καφέ αρκούδας, προκειμένου να χρησιμοποιηθούν πιλοτικά και παράλληλα να αποσαφηνιστεί η ποιότητα ορισμένων εξ αυτών λόγω ελλιπών πληροφοριών. Βάσει των αποτελεσμάτων των μεθόδων, της μεταξύ τους σχέσης, των παραμέτρων που υπολογίστηκαν από αυτές και της σύγκρισής τους με τα αποτελέσματα των ισοτοπικών αναλύσεων, ορισμένα από τα δείγματα της παρούσας μελέτης κρίθηκαν ακατάλληλα, καθώς οι διαγενετικές διεργασίες πιθανά αλλοίωσαν το αρχικό ισοτοπικό τους σήμα. Τα υπόλοιπα δείγματα χρησιμοποιήθηκαν στην ισοτοπική μελέτη ανασύστασης του παλαιοπεριβάλλοντος. Στο πλαίσιο της ισοτοπικής μελέτης (δ13C και δ18Ο), αναλύθηκε το ανόργανο μέρος των οστών και των δοντιών (βιοαπατίτης) σύγχρονων και απολιθωμένων δειγμάτων. Οι ισοτοπικές τιμές του άνθρακα χρησιμοποιήθηκαν για την εξαγωγή πληροφοριών της παλαιοδιατροφής, συγκρίνοντας τα αποτελέσματα με βιβλιογραφικά δεδομένα πλειστοκαινικών αρκτοειδών της Ευρώπης, καθώς και με τη σύγχρονη καφέ αρκούδα που διαβιώνει στον ελλαδικό χώρο. Οι ισοτοπικές τιμές του άνθρακα έδειξαν ότι η U. ingressus ακολουθούσε μια παμφαγική διατροφή, με συμμετοχή πρωτεΐνης χερσαίας ή πιο πιθανά ποτάμιας προέλευσης. Αντιθέτως επιβεβαιώνεται η κυρίαρχη φυτοφαγική δίαιτα της σύγχρονης καφέ αρκούδας, με μικρότερη συμμετοχή πρωτεΐνης σε σχέση με την πλειστοκαινική αρκούδα U. ingressus του Σπηλαίου Λουτρών Αλμωπίας. Βάσει των ισοτοπικών τιμών του οξυγόνου του βιοαπατίτη της σύγχρονης καφέ αρκούδας, των νερών της περιοχής που διαβιώνει και του απολιθωμένου υλικού της U. ingressus, κατασκευάστηκαν εξισώσεις που συνδέουν την ισοτοπική τιμή του οξυγόνου των οστών και των δοντιών με το νερό που κατανάλωσε η U. ingressus. Οι ευθείες που προκύπτουν από τις εξισώσεις περιλαμβάνουν ως μόνο παράγοντα διαμόρφωσης της ισοτοπικής τιμής του νερού του σώματος, το νερό που καταναλώνεται. Η παλαιοκλιματική ανασύσταση υποδεικνύει ψυχρότερες συνθήκες σε σχέση με τις συνθήκες που επικρατούν στην περιοχή τη σύγχρονη εποχή. Το συμπέρασμα αυτό βρίσκεται σε αρμονία με την εκτίμηση της ηλικίας των απολιθωμάτων (42.361 χρόνια πριν από σήμερα).

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Uji Efektivitas dan Karakterisasi Komposit Tanah Andisol/Arang Tempurung Kelapa Untuk Adsorpsi Logam Berat Besi (Fe)

ALCHEMY Jurnal Penelitian Kimia ◽

10.20961/alchemy.16.1.33286.50-66 ◽

2020 ◽

Vol 16 (1) ◽

pp. 50

Author(s):

Pranoto Pranoto ◽

Tri Martini ◽

Winda Maharditya

Keyword(s):

Fourier Transform ◽

Electron Microscope ◽

Scanning Electron Microscope ◽

Atomic Absorption Spectroscopy ◽

Contact Time ◽

Coconut Shell ◽

X Ray Diffraction ◽

X Ray ◽

Scanning Electron

Penelitian ini untuk mengetahui kapasitas adsorpsi komposit tanah andisol/arang tempurung kelapa sebagai adsorben logam berat besi (Fe) berdasarkan pada kondisi komposisi, pH dan waktu kontak yang optimum. Tanah andisol diaktivasi dengan larutan NaOH 3 M dan arang tempurung kelapa diaktivasi menggunakan larutan HCl 4 M. Komposit tanah andisol/arang tempurung kelapa dibuat dengan mencampurkan tanah andisol dan arang tempurung kelapa pada variasi komposisi 100:0, 75:25, 50:50, 25:75 dan 0:100 (b/b) Uji adsorpsi terhadap logam besi (Fe) dilakukan pada variasi pH larutan 1, 2, 3, 4, 5 dan 6 serta waktu kontak 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, dan 60 menit dengan sistem batch. Pengukuran konsentrasi akhir pada saat kesetimbangan dilakukan dengan menggunakan Atomic Absorption Spectroscopy (AAS). Hasil karakterisasi adanya proses aktivasi dan pengompositan ditunjukkan pada spektra Fourier Transform Infra Red (FTIR) yang mengalami pergeseran bilangan gelombang. Karakterisasi pola difraksi X-Ray Diffraction (XRD) yang menunjukkan adanya puncak baru. Hasil analisis Scanning Electron Microscope (SEM) komposit menunjukkan bahwa permukaan adsorben telah ditutupi logam besi (Fe). Pembentukan komposit juga menunjukkan adanya peningkatan luas permukaan dan nilai keasaman komposit. Berdasarkan penelitian ini diperoleh bahwa proses adsorpsi terjadi pada kondisi optimum komposisi komposit tanah andisol/arang tempurung kelapa 75:25 (b/b), pH larutan besi (Fe) 5 dan waktu kontak selama 30 menit dengan kapasitas adsorpsi sebesar 0,54 mg/g dan presentase adsorpsi 91,57%. Isoterm adsorpsi mengikuti isoterm Freundlich dengan nilai R2 sebesar 0,9456.Effectiveness Test and Characterization of Andisol Soil/Coconut Shell Charcoal for Adsorption of Iron (Fe). This research aims to determine the adsorption capacity composite of andisol soil and coconut shell charcoal as the adsorbent of iron (Fe) metal based on the composition condition, pH, and optimum contact time. Andisol soil was activated with NaOH 3 M solution, and coconut shell charcoal was activated with HCl 4 M solution. The composites were made under various composition of andisol soil/coconut shell charcoal of 100:0, 75:25, 50:50, 25:75 and 0:100 (w/w). The adsorption test was done on the pH variation of 1, 2, 3, 4, 5, 6 and used the contact time variation of 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 and 60 minutes in a batch method. The concentration analysis of iron (Fe) metal was done by atomic absorption spectroscopy (AAS). The characterization result of the activation process can be shown on the Fourier transform infrared (FTIR) spectra with the shifting peak. Characterization of X-ray diffraction (XRD) diffractogram showed the emergence of a new peak in andisol soil and coconut shell charcoal. The result of scanning electron microscope (SEM) characterization analysis showed that the surface of the adsorbent was covered in iron. The composite formation also showed an increase in surface area and composite acidity value. Based on the result of the research, it can be concluded that the adsorption process happens in the optimum condition in andisol soil/coconut shell charcoal composition of 75:25 (w/w), pH solution iron (Fe) metal of 5 and contact time of 30 minutes. The adsorption capacity was 0.54 mg/g and 91.57% for adsorption percentage. The isotherm adsorption followed Freundlich isotherm with R2 values 0.9456.

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Pemanfaatan Asam Humat Dari Sampah Organik Sebagai Adsorben Pada Limbah Cair Sintesis Timbal (Pb)

Jurnal Teknik Kimia Indonesia ◽

10.5614/jtki.2020.19.1.5 ◽

2021 ◽

Vol 19 (1) ◽

pp. 26

Author(s):

Maimunawaro Maimunawaro ◽

Sazila Karina Rahman ◽

Chairul Irawan

Keyword(s):

Fourier Transform ◽

Infrared Spectroscopy ◽

Electron Microscope ◽

Humic Acid ◽

Scanning Electron Microscope ◽

Organic Waste ◽

X Ray Diffraction ◽

Adsorption Method ◽

X Ray ◽

Scanning Electron

Abstrak. Industri pelapisan logam disamping memiliki konstribusi bagi perekonomian Indonesia, namun dalam prosesnya menghasilkan limbah cair yang memberikan dampak negatif bagi lingkungan karena mengandung logam berat. Salah satu teknik pengolahan limbah cair yaitu adsorpsi menggunakan asam humat dari ekstraksi sampah organik yang dijadikan adsorben. Kelebihan proses adsorpsi ini ialah pengerjaannya mudah, biaya relatif murah, relatif aman dari kontaminasi zat-zat kimia, serta tidak memberikan polusi berarti bagi lingkungan. Ekstraksi asam humat dari sampah organik berlangsung secara bertahap menggunakan proses ekstraksi dengan 1 L NaOH dengan variasi pelarut 0,1 N dan 0,5 N. Karakterisasi sebelum dan sesudah ekstraksi menggunakan Fourier-transform infrared spectroscopy (FTIR), X-Ray Diffraction (XRD), dan Scanning Electron Microscope (SEM), masing-masing untuk mengetahui gugus fungsional, struktur kristal, serta struktur morfologi pada asam humat. Proses adsorpsi menggunakan asam humat sebagai adsorben dilakukan secara batch dengan massa adsorben 1 g/L, kecepatan pengadukan 150 rpm, temperatur ruang dan pH 6,7–7,0 selama 1 jam. Analisa setelah adsorpsi menggunakan metode Atomic Absorption Spectrofotometer (AAS) untuk uji kadar timbal (Pb (II)). Hasil adsorpsi timbal (Pb) pada kedua variasi pelarut adsorben dengan pH awal 6,7–7,0 memiliki keefektifan masing-masing mencapai hampir 98%. Kata kunci:adsorben, asam humat, ekstraksi, sampah organik. Abstract. Removal of Lead (II) of Synthetic Wastewater Using Humic Acid Extracted from Organic Waste As Adsorbent.Metal plating Industry mining productions contribute to the growth of the Indonesian economy, but during the processes usually create a negative environmental impact such as heavy metals. The adsorption method is one of various methods for wastewater treatment. The humic acid as adsorbent in the adsorption method had been extracted from organic waste. The advantages of this method are simple, cheap and secure from chemical contaminant. The extraction of humic acid from organic waste takes place gradually using 1 L NaOH with a variety of solvents of 0.1 N and 0.5 N.The humic acid before and after treatment was characterized using Fourier-transform infrared spectroscopy (FTIR) X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). The adsorption process was carried out in batch experiment with mass adsorbent of 1 g/L, stirring speed of 150 rpm, room temperatur, pH around 6.7–7.0 for 1 hour. The result showed by Atomic Absorption Spectroscopy (AAS) analysis characterize that adsorption lead (II) in several adsorbent concentrations at pH 6.7–7.07 has effectiveness 98%. Keywords: adsorbents, extraction, humic acid, organic waste.

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Calcium Oxalate on Limestone Surface of Heritage Buildings

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.750.129 ◽

2017 ◽

Vol 750 ◽

pp. 129-134 ◽

Cited By ~ 1

Author(s):

Rodica Mariana Ion ◽

Sofia Teodorescu ◽

Raluca Maria Ştirbescu ◽

Ioan Alin Bucurică ◽

Ioana Daniela Dulamă ◽

...

Keyword(s):

Raman Spectroscopy ◽

Fourier Transform ◽

Infrared Spectroscopy ◽

Electron Microscope ◽

Scanning Electron Microscope ◽

Calcium Oxalate ◽

X Ray ◽

Small Crystals ◽

Heritage Buildings ◽

Scanning Electron

In this paper, the presence of calcium oxalate on calcareous stone, is studied. The patina consists mainly of calcium oxalate which exists in three forms: monohydrated whewellite (small, smooth, globular yellow-green to brown crystals radial fibrous) (COM), dehydrated weddelite (small crystals, and spherical clusters of plaques consisting of brown or yellow platelets, which are sharp) (COD) and trihydrate caoxite (rarely observed, as mono or dihydrated precursor forms)(COT). Scanning electron microscope with Energy Dispersive X-ray Spectroscopy (SEM/EDS), Fourier Transform Infrared spectroscopy (FTIR), Raman Spectroscopy are used for characterization. The oxalate films were found to form a thin compact non-porous shell and penetrate deeply in an intergranular position or along microfractures, with effects on longer stability.

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Uji Efektivitas dan Karakterisasi Komposit Tanah Andisol/Arang Tempurung Kelapa Untuk Adsorpsi Logam Berat Besi (Fe)

ALCHEMY Jurnal Penelitian Kimia ◽

10.20961/alchemy.16.1.33286.50-65 ◽

2020 ◽

Vol 16 (1) ◽

pp. 50

Author(s):

Pranoto Pranoto ◽

Tri Martini ◽

Winda Maharditya

Keyword(s):

Fourier Transform ◽

Electron Microscope ◽

Scanning Electron Microscope ◽

Atomic Absorption Spectroscopy ◽

Contact Time ◽

Coconut Shell ◽

X Ray Diffraction ◽

X Ray ◽

Scanning Electron

Penelitian ini untuk mengetahui kapasitas adsorpsi komposit tanah andisol/arang tempurung kelapa sebagai adsorben logam berat besi (Fe) berdasarkan pada kondisi komposisi, pH dan waktu kontak yang optimum. Tanah andisol diaktivasi dengan larutan NaOH 3 M dan arang tempurung kelapa diaktivasi menggunakan larutan HCl 4 M. Komposit tanah andisol/arang tempurung kelapa dibuat dengan mencampurkan tanah andisol dan arang tempurung kelapa pada variasi komposisi 100:0, 75:25, 50:50, 25:75 dan 0:100 (b/b) Uji adsorpsi terhadap logam besi (Fe) dilakukan pada variasi pH larutan 1, 2, 3, 4, 5 dan 6 serta waktu kontak 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, dan 60 menit dengan sistem batch. Pengukuran konsentrasi akhir pada saat kesetimbangan dilakukan dengan menggunakan Atomic Absorption Spectroscopy (AAS). Hasil karakterisasi adanya proses aktivasi dan pengompositan ditunjukkan pada spektra Fourier Transform Infra Red (FTIR) yang mengalami pergeseran bilangan gelombang. Karakterisasi pola difraksi X-Ray Diffraction (XRD) yang menunjukkan adanya puncak baru. Hasil analisis Scanning Electron Microscope (SEM) komposit menunjukkan bahwa permukaan adsorben telah ditutupi logam besi (Fe). Pembentukan komposit juga menunjukkan adanya peningkatan luas permukaan dan nilai keasaman komposit. Berdasarkan penelitian ini diperoleh bahwa proses adsorpsi terjadi pada kondisi optimum komposisi komposit tanah andisol/arang tempurung kelapa 75:25 (b/b), pH larutan besi (Fe) 5 dan waktu kontak selama 30 menit dengan kapasitas adsorpsi sebesar 0,54 mg/g dan presentase adsorpsi 91,57%. Isoterm adsorpsi mengikuti isoterm Freundlich dengan nilai R2 sebesar 0,9456.Effectiveness Test and Characterization of Andisol Soil/Coconut Shell Charcoal for Adsorption of Iron (Fe). This research aims to determine the adsorption capacity composite of andisol soil and coconut shell charcoal as the adsorbent of iron (Fe) metal based on the composition condition, pH, and optimum contact time. Andisol soil was activated with NaOH 3 M solution, and coconut shell charcoal was activated with HCl 4 M solution. The composites were made under various composition of andisol soil/coconut shell charcoal of 100:0, 75:25, 50:50, 25:75 and 0:100 (w/w). The adsorption test was done on the pH variation of 1, 2, 3, 4, 5, 6 and used the contact time variation of 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 and 60 minutes in a batch method. The concentration analysis of iron (Fe) metal was done by atomic absorption spectroscopy (AAS). The characterization result of the activation process can be shown on the Fourier transform infrared (FTIR) spectra with the shifting peak. Characterization of X-ray diffraction (XRD) diffractogram showed the emergence of a new peak in andisol soil and coconut shell charcoal. The result of scanning electron microscope (SEM) characterization analysis showed that the surface of the adsorbent was covered in iron. The composite formation also showed an increase in surface area and composite acidity value. Based on the result of the research, it can be concluded that the adsorption process happens in the optimum condition in andisol soil/coconut shell charcoal composition of 75:25 (w/w), pH solution iron (Fe) metal of 5 and contact time of 30 minutes. The adsorption capacity was 0.54 mg/g and 91.57% for adsorption percentage. The isotherm adsorption followed Freundlich isotherm with R2 values 0.9456.

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PENGGUNAAN TiO2 PARTIKEL NANO HASIL SINTESIS BERBASIS AIR MENGGUNAKAN METODA SOL-GEL PADA BAHAN KAPAS SEBAGAI APLIKASI UNTUK TEKSTIL ANTI UV

Arena Tekstil ◽

10.31266/at.v28i1.1434 ◽

2013 ◽

Vol 28 (1) ◽

Author(s):

Maya Komalasari ◽

Bambang Sunendar

Keyword(s):

Fourier Transform ◽

Electron Microscope ◽

Scanning Electron Microscope ◽

Sol Gel ◽

Crosslinking Agent ◽

X Ray Diffraction ◽

Nano Tio2 ◽

X Ray ◽

Infra Red ◽

Scanning Electron

Partikel nano TiO2 berbasis air dengan pH basa telah berhasil disintesis dengan menggunakan metode sol-gel dan diimobilisasi pada kain kapas dengan menggunakan kitosan sebagai zat pengikat silang. Sintesis dilakukan dengan prekursor TiCl4 pada konsentrasi 0,3 M, 0,5 M dan 1 M, dan menggunakan templat kanji dengan proses kalsinasi pada suhu 500˚C selama 2 jam. Partikel nano TiO2 diaplikasikan ke kain kapas dengan metoda pad-dry-cure dan menggunakan kitosan sebagai crosslinking agent. Berdasarkan hasil Scanning Electron Microscope (SEM),diketahui bahwa morfologi partikel TiO2 berbentuk spherical dengan ukuran nano (kurang dari 100 nm). Karakterisasi X-Ray Diffraction (XRD) menunjukkan adanya tiga tipe struktur kristal utama, yaitu (100), (101) dan (102) dengan fasa kristal yang terbentuk adalah anatase dan rutile. Pada karakterisasi menggunakan SEM terhadap serbuk dari TiO2 yang telah diaplikasikan ke permukaan kain kapas, terlihat adanya imobilisasi partikel nano TiO2 melalui ikatan hidrogen silang dengan kitosan pada kain kapas. Hasil analisa tersebut kemudian dikonfirmasi dengan FTIR (Fourier Transform Infra Red) yang hasilnya memperlihatkan puncak serapan pada bilangan gelombang 3495 cm-1, 2546 cm-1, dan 511 cm-1, yang masing-masing diasumsikan sebagai adanya vibrasi gugus fungsi O-H, N-H dan Ti-O-Ti. Hasil SEM menunjukkan pula bahwa kristal nano yang terbentuk diantaranya adalah fasa rutile , yang berdasarkan literatur terbukti dapatberfungsi sebagai anti UV.

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