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All Journal PROSIDING SEMINAR KIMIA Jurnal Kimia Mulawarman JURNAL ATOMIK Jurnal Abdimas Mahakam
Noor Hindryawati
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Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Energy Environmental Science Law, Crime, Criminology & Criminal Justice Public Health Social Sciences

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MINI-REVIEW: PEMBUATAN DYE-SENSITIZED SOLAR CELLS (DSSC) MENGGUNAKAN SEMIKONDUKTOR TIO2 DENGAN BANTUAN ZAT PEWARNA ALAMI Muhammad Irvan Mulya Pratama; Veliyana London Allo; Noor Hindryawati
PROSIDING SEMINAR KIMIA Vol 1 No 1 (2022): Prosiding SNK 2022
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

The availability of energy sources such as coal and oil is getting thinner every year. Sunlight is one of the most abundant sources of energy on earth. Solar cells can convert this energy into electricity and over time, dye-Sensitized solar cells (DSSC) have the potential to be developed because they have good efficiency. However, the use of synthetic dyes is difficult to obtain and is toxic because it contains heavy metals. Therefore, natural dyes are used as alternative materials in the fabrication of DSSC. The purpose of this article is to review the results of research on DSSC using natural dyes. The method used in this research is the literature review method. The results of the literature review show that the DSSC made with TiO2 semiconductor and natural dyes has a good efficiency of about 0,592 %. Natural dyes can be obtained by extracting plants containing anthocyanins, curcumin and chlorophyll such as red cabbage, turmeric and pandan leaves, what's interesting is that using 2 different types of natural dyes will produce higher efficiency than 1 type of dye. In addition, treatment factors such as dye extraction, the amount of TiO2 used and the length of immersion into the dye also affect the efficiency of the DSSC. Keywords: DSSC, natural dyes and efficiency
MINI REVIEW: PEMBUATAN DYE SENSITIZED SOLAR CELL (DSSC) MENGGUNAKAN SEMIKONDUKTOR TIO2 DENGAN ZAT WARNA ANTOSIANIN Ziyyanatul Luthfiyyah; Noor Hindryawati; Irfan Ashari Hiyahara
PROSIDING SEMINAR KIMIA Vol 1 No 1 (2022): Prosiding SNK 2022
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Dye Sensitized Solar Cell (DSSC) is a tool or device that can convert light energy into electrical energy. Dye Sensitized Solar Cell (DSSC) is a solar cell consisting of a pair of glass electrodes, namely the working electrode and the counter electrode flanking the electrolyte. The working electrode is composed of TCO (Transparent Conducting Oxide) glass which is then coated with TiO2 and a dye containing anthocyanins as a charge carrier photosensitizer. The counter electrode is composed of TCO glass coated with carbon which is used as a catalyst to accelerate the redox reaction with the electrolyte. Anthocyanins can absorb photon energy at a distance of about 520-550 nm. Dye will excitate due to absorption of photon energy. The more dye attached, it will produce more photoelectrons where the size of the TiO2 semiconductor affects the dye attached or attached during the coloring process. Natural anthocyanins can be obtained from plant materials such as the crown of the gods, dragon fruit, red cabbage, purple sweet potato and buni fruit. Natural dye is an alternative that is non-toxic, renewable and easily degraded so that it is friendly to the environment. The results of the efficiency of the DSSC using natural anthocyanins showed good results, namely 0.38%. so it can be concluded that anthocyanins from natural dyes can be used in the manufacture of DSSC. Keywords: Dye Sensitized Solar Cell, Anthocyanins, TiO2 Semiconductor, Natural dye
GREEN SYNTHESIS NANOPARTIKEL PERAK DENGAN BANTUAN GELOMBANG ULTRASONIK: MINI REVIEW Atika Aulia Ahmad; Noor Hindryawati; Irfan Ashari Hiyahara
PROSIDING SEMINAR KIMIA Vol 1 No 1 (2022): Prosiding SNK 2022
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Silver nanoparticles are particles composed of silver oxide with a size of 1-100 nm that can be made by the bottom-up method through the reduction of Ag+ ions with the addition of a bioreductors and ultrasonic waves. Green Synthesis is currently very popular in the fields of science, technology and industry because it is more environmentally friendly. The use of ultrasonic waves in this synthesis can help to time-efficient and increase the reaction rate. Thus, the purpose of this review is to determine the characteristics of nanoparticles synthesized using ultrasonic waves based on UV-Vis and TEM spectroscopic data. The results of the literature show that the factors that affect the stability of the nanoparticles include the molar concentration of AgNO3, the volume of the extract, the stabilizing agent and the reaction time. The change of Ag+ to Ag0 was shown qualitatively by changing the color of the solution from clear/light yellow to brown. Wavelength values of typical nanoparticles appear at 420-440 nm. In the presence of ultrasonic waves it can produce AgNPs sizes between 8 - 33.8 nm and spherical and uniform nanoparticle shapes
Pelatihan Pengelolaan Sampah, Pembuatan Dekomposer dan Pupuk Organik Cair bagi Santri Panti Asuhan Ruhamaa Kota Samarinda Djihan Ryn Pratiwi; erwin erwin; Ika Yekti liana Sari; irfa Ashari Hyahara; Noor Hindryawati; Eva Marliana
Jurnal Abdimas Mahakam Vol. 7 No. 01 (2023): Abdimas Mahakam
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24903/jam.v7i01.1977

Abstract

Panti asuhan adalah suatu lembaga pelayanan sosial yang didirikan oleh pemerintah maupun masyarakat, bertujuan untuk membantu individu, kelompok masyarakat. Salah satu panti asuhan yang ada di kota Samarinda adalah Panti Asuhan Ruhama yang beralamatkan di Jalan Suryanata Kelurahan Bukit Pinang. Panti Asuhan Ruhama memenuhi kebutuhan anak-anak yang dirawatnya mulai dari tempat tinggal, makanan, kebutuhan sehari - hari hingga sekolahnya. Dalam Kegiatan sehari - hari Panti Asuhan Ruhama banyak menghasilkan sampah, sampah dipanti asuhan Ruhamaa terutama sampah organik belum dimanfaatkan dengan baik padahal panti Asuhan Ruhama memiliki green house. Untuk itu Dosen Jurusan Kimia FMIPA UNMUL bekerjasama dengan PT. Global Environmet Laboratory (PT. GEL) pada hari Minggu, 25 September 2022 memberikan pelatihan mengenai Pengelolaan Sampah, Pembuatan Dekomposer dan Pupuk Organik Cair (POC) dari sampah organik berupa nasi sisa Bagi Santri Panti Asuhan Ruhama Kota Samarinda. Metode pengabdian masyarakat yang dilakukan adalah metode ceramah ; memberikan materi pengelolaan sampah dan pembuatan dekomposer dan pupuk organik cair, metode eksperimen ; santri panti asuhan ruhama praktek terkait materi yang sudah disampaikan sebelumnya dan mengaplikasikan langsung pupuk organik cair yang sudah dibuat ke tanaman yang ada di green house milik panti. Dengan metode ceramah dan eksperimen dapat menambah pengetahuan dan skill keterampilan santri dalam mengelola sampah, pembuatan dekomposer dan pupuk organik cair (POC) serta dapat mengaplikasikan langsung di green house milik panti. Dari hasil kuisioner dapat dijabarkan bahwa santri Panti Asuhan Ruhamaa menanggapi baik dengan rata - rata tanggapan terhadap pernyataan yang diberikan adalah baik sekali dengan presentase untuk tiap pernyataan sebesar 90%.
Co-Authors Abdul Zakaria Ainun Rahmi Ramadhannur Allo, Veliyana Londong Aman Sentosa Panggabean Annuary Laksono Arif Dwiki Saputra Atika Aulia Ahmad Daniel Daniel Dian Eka Chandra Djihan Ryn Pratiwi Edman Tandirerung Erwin Erwin Eva Marliana, Eva Helbianurramdan Helbianurramdan Helbyarti Mawar Sari Hendra Priatna Ika Yekti Liana Sari irfa Ashari Hyahara Irfan Ashari Hiyahara Joni Rahman Muhammad Irvan Mulya Pratama Nauval Dwi Fadillah Nirwanto Pasuluran R.R Dirgarini Julia N R.R Dirgarini Julia Nurlianti Subagyono R.R. Dirgarini Julia N. R.R. Dirgarini N. Rakhmad Rakhmad Renita Anggun Winanti Rinda Anisyah Putri Ritbey Ruga Riyan Octavianus RR Dirgarini Julia Nurlianti Subagyono RR. Dirgarini Julia N. S. Rudi Kartika, Rudi Soerja Koesnarpadi Survina Osalia Br Ginting Teguh Wirawan Widya Rachmah Sari Yusniar Yusniar Ziyyanatul Luthfiyyah