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All Journal Jurnal Kimia (Journal of Chemistry) IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Science and Technology Indonesia Chimica et Natura Acta Jurnal Kreativitas PKM SRIWIJAYA JOURNAL OF ENVIRONMENT Jurnal Ilmiah Berkala: Sains dan Terapan Kimia

Nurlisa Hidayati

Jurusan Kimia FMIPA Universitas Sriwijaya, Indonesia

Author-ID : 335310

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health

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STUDI INTERAKSI ION LOGAM Mn2+ DENGAN SELULOSA DARI SERBUK KAYU Risfidian Mohadi; Adi Saputra; Nurlisa Hidayati; Aldes Lesbani
Jurnal Kimia (Journal of Chemistry) Vol. 8, No. 1 Januari 2014
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Separation of cellulose from sawdust using methanol and hydrocloric acid in various acid concentrations has been carried out. Cellulose from sawdust was characterized using FT-IR Spectroscopy and XRD difractometer. The cellulose was used as adsorbent for Mn2+ and Co2+ metal ions in aqueous medium. Adsorptions process was studied through variation of time interaction, concentration and separation desorption. FT-IR Spectrum shows that cellulose with 5% acid concentration has similarity with FT-IR cellulose standard. The XRD difractometer pattern of cellulose shows that cellulose has amorf structure. The adsorption rate constant of Mn2+ on cellulose from sawdust shows adsorption rate constant in cellulose is higher than in sawdust. Adsorption energy of Mn2+ metal ion in cellulose from sawdust was about 26.21 kJ/mol. The adsorption capacity of Mn2+ in cellulose is higher than in sawdust. The desorption of Mn2+ metal ion using H2O, Na-EDTA, Amonium acetic, and HCl shows that the adsorption mechanism of Mn2+ on cellulose and sawdust is dominated by chemical interaction.

SINTESIS DAN KARAKTERISASI SENYAWA OKSOTRINUKLIR [Ru2Co(O)(OOCCH3)6(C5H5N)3](ClO4) Aldes Lesbani; Risfidian Mohadi; Nurlisa Hidayati
Jurnal Kimia (Journal of Chemistry) Vol. 6, No. 2 Juli 2012
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (220.583 KB)

The oxotrinuclear compound [Ru2Co(O)(OOCCH3)6(C5H5N)3](ClO4) has been synthesized using RuCl3?nH2O at room temperature under oxygen atmospheric condition. The oxotrinuclear complex was characterized by FT-IR spectrophotometer and mass spectrometer with cold spray ionization (CSI) method. The FT-IR spectra of the resulted oxotrinuclear compound show has specific vibration at 692 cm-1. This absorption is related to M3O vibration (M= metal). CSI-mass spectra of the oxotrinuclear compound show that pyridine as ligand was fragmented in oxotrinuclear compound.

Modification of Cellulose with 4.4 Diaminodiphenylether-O-Hydroxibenzaldehide as Adsorbent and Its Application for Adsorbing Metalic Ion of Cd2+ In Aqueous Solution Nurlisa HIdayati; Risfidian Mohadi; Euis Marsitho; Ahmad Fatoni
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 1, No 2 (2016): June 2016
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v1.i2.47

This research on the modification of cellulose using 4,4-diaminodiphenylether and o-hydroxybenzaldehyde and its application to adsorb Cd2+ in aqueous solution has been done. The adsorption studies of cellulose and modified cellulose were done by using batch technique. The cellulose and modified cellulose were characterized by FTIR. The FTIR spectra revealed characteristic bands of 1573 cm-1, 1280 cm-1, 3749 cm-1 and 1056 cm-1. It indicates function group of C=N, C=O, O-H and Si-OR bond, respectively. The FTIR spectra of cellulose and modified cellulose which interacted to Cd2+, it were indicated by the shift in wavenumber 3410 cm-1 to 3371 cm-1. This spectral shift indicating Cd2+ bound to OH-group. In this research, interaction between modified cellulose with Cd2+ confirmed by intensities spectral changes at 1620 cm-1. The adsorption capacity and energy from adsorption of Cd2+ ions toward cellulose were 71,43 mg/g and 4,142 kJ/mol, while toward modified cellulose were 55,56 mg/g and 0,13 kJ/mol, respectively. Keywords: cellulose, 4,4-diaminodiphenylether-o-hydroxybenzaldehyde, adsorption, Cd2+

Calcium oxide from Pomacea canaliculata and Babylonia spirata snails Triayu Septiani; Nurlisa Hidayati; Risfidian Mohadi
Science and Technology Indonesia Vol. 2 No. 3 (2017): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

The preparation of CaO from golden snail (Pomacea canaliculata) and lion snail (Babylonia spirata) through decomposition at various temperature i.e 700o, 800o, 900o and 1000oC during 3 hours has been carried out. Calcium oxide from decomposition was characterized using X-Ray diffractometer. Furthermore, the characterization was continued using FT-IR spectrophotometer and determination of surface area using BET analysis. The results showed that the optimum temperature for preparation of CaO from golden snail and lion snail at 900oC with 2q values are: 32.2° , 37.4o , 54o , 64.2o , 67.3° and 32.4°, 37.5°, 67.5 °, respectively. FT-IR spectra showed characteristic vibrations for the Ca-O in the sample golden snail and lion snail combustion products at a temperature of 900oC. Ca-O absorption of golden snail samples in the wavenumber around 362.62 cm-1 and lion snail seen in wavenumber around 384.76 cm-1 indicating the presence of Ca-O vibration of the metal oxide of preparation. Golden snail and the lion snail combustion at 900oC temperature of each sample which has a surface area of 20.495 m2/g, while the lion snail 17.308 m2/g. The pore diameter of golden snail 3.753 nm and 11.319 nm of lion snail. All CaO can be categorized as mesoporous material. Keywords: golden snail, lion snail, decomposition, CaO

SINTESIS HIBRIDA ANORGANIK-ORGANIK V2O5-ASAM HUMAT DENGAN METODE SOL- GEL Risfidian Mohadi; Nurlisa Hidayati; Komala Syari
Jurnal Sains dan Terapan Kimia Vol 7, No 2 (2013)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Sintesis senyawa hibrida anorganik-organik V2O5-Asam humat menggunakan metode sol-gel. Perbandingan bahan yang digunakan adalah V2O5:asam humat:FeCl3:air (1:1:1:40:17) dilarutkan dan didinginkan sampai suhu 30oC, disaring dan didapatkan hibrida senyawa anorganik-organik tersebut. Senyawa ini kemudian dikarakterisasi dengan spektrofotometer FT-IR dan XRD. Hasil identifikasi dengan FT-IR diketahui bahwa gugus fungsi yang terdapat pada asam humat tidak muncul pada spektra hibrida sol-gel ini seperti C=C aromatik, C-H alifatik, C-H aromatik ini mengindikasikan bahwa asam humat telah berada dalam rongga V2O5. Hasil analisa dengan XRD, hibrida metode sol-gel ini memiliki indeks miller (111), (110), (100) dengan ukuran simetri (a) adalah 0,267nm. Kata kunci: sol-gel, microstructur, asam humat, V2O5, hibrida Abstract

Transesterification of Tropical Edible Oils to Biodiesel Using Catalyst From Scylla serrata Risfidian Mohadi; Hesti A. Harahap; Nurlisa Hidayati; Aldes Lesbani
Sriwijaya Journal of Environment Vol 1, No 2 (2016): Developing Without Destruction
Publisher : Program Pascasarjana Universitas Sriwijaya

Abstract: Scylla serata shell was decomposed at various temperatures ranging from 700-1100 oC to obtain calcium oxide. Calcium oxide from decomposed Scylla serrata shell was characterized through X-Ray analysis, FTIR spectroscopy, and morphology analysis. Furthermore, decomposed Scylla serrata shell was used as catalyst for transesterification of tropical edible oils to form biodiesel. Biodiesel was characterized through density, viscosity, fatty acid value, and iodine number. The results showed that decomposed Scylla serrata shell at 900 oC could produce calcium oxide similar with standard, which was indicated from X-ray powder diffraction pattern of decomposed shell with JCPDS data. FTIR spectrum showed that main vibration of calcium oxide was observed at 393 cm-1. Morphology analysis using SEM indicated that uniform calcium oxide was obtained after decomposition. The use of decomposed shell as base catalyst for transesterification of tropical edible oils resulted biodiesel with density, viscosity, fatty acid value, and iodine number appropriated with SNI standard.Keywords: transesterification, edible oils, biodiesel, Scylla serrataAbstrak (Indonesian): Scyalla serrata telah didekomposisi pada berbagai suhu dari 700-1100 oC untuk diperoleh kalsium oksida. Kalsium oksida hasil dekomposisi dari cangkang Scylla serrata dikarakterisasi melalui pengukuran sinar X, analisis FTIR, dan analisis morfologi. Lebih lanjut, dekomposisi cangkang Scylla serrata digunakan sebagai katalis transesterifikasi minyak yang dimakan dari daerah tropis menjadi biodisel. Biodiesel dikarakterisasi melalui penentuan densitas, viskositas, nilai asam lemak, dan bilangan iod. Hasil penelitian menunjukkan bahwa dekomposisi cangkang Scylla serrata pada 900 oC dapat menghasilkan kalsium oksida mirip kalsium oksida standar yang diindikasikan dari pola difraksi XRD yang mirip data JCPDS. Spektrum FTIR menunjukkan vibrasi utama kalsium oksida teramati pada bilangan gelombang 393 cm-1. Analisis morfologi menggunakan SEM menunjukkan bahwa bentuk yang lebih seragam diperoleh setelah proses dekomposisi. Penggunaan cangkang hasil dekomposisi sebagai katalis basa untuk transesterifikasi minyak yang dimakan dari daerah tropis menghasilkan biodisel dengan densitas, viskositas, nilai asam lemak, dan bilangan iod yang sesuai dengan standar SNI.Kata kunci: transesterifikasi, minyak yang dimakan dari daerah tropis, biodiesel, Scylla serrata

Synthesis and Characterization Chitosan-ZnO nanoparticle and Its Application as Antibacterial Agent of Staphylococus aureus ATCC 25923 Ahmad Fatoni; Ensiwi Munarsih; Kadek Asmadi; Nurlisa Hidayati
Science and Technology Indonesia Vol. 5 No. 1 (2020): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

The synthesis of modified chitosan has been studied. The aims of this research were modification of chitosan with ZnO nanoparticle to form chitosan-ZnO nanoparticle and its application as antibacterial agent of Staphylococus aureus. Characterization of modified chitosan was conducted using FTIR spectroscopy and X-Ray diffractometer. ZnO nanoparticle was synthesized by leaf extract of Sirih hijau (piper betle L) and zinc acetate dihydrate. Modified chitosan was synthesized by chitosan and ZnO nanoparticle. Modified chitosan solution can act as antibacterial agent with paper disk method. The result showed that chitosan can be modified with ZnO nanoparticle and detected at wave number of 3427 cm−1. The crystalline size of ZnO nanoparticle is 16.47 nm. The average inhibition zone of chitosan-ZnO nanoparticle at concentration 10.000, 5.000 and 2.500 ppm are 28.87 ± 0.4 ; 24.93 ± 0.15 and 19.35 ± 0.3 mm respectively.

CuO Nanoparticles : Biosynthesis, Characterization and In Vitro Study Ahmad Fatoni; Reza Agung Sriwijaya; Umy Habiba; Nurlisa Hidayati
Science and Technology Indonesia Vol. 6 No. 1 (2021): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

The biosynthesis of CuO nanoparticles was studied. The aims of this research were biosynthesis CuO nanoparticles from Cu2+ion solution and leaves aquoeus extract of sweet star fruit and its in vitro study as antibacterial agent of Escherichia coli. CuO nanoparticles was characterized using FTIR spectroscopy and X-Ray diffractometer. CuO nanoparticles was synthesized by reaction between Cu2+ion solution and leaves aquoeus extract of sweet star fruit. Paper disk method was used as the application of the suspension of CuO nanoparticles. The result showed that Cu-O groups detected at wave number of 503, 619, 767 and 821 cm-1. Diffractogram of CuO nanoparticles had sharp and narrow diffraction peaks. The crystallite size of CuO nanoparticles was 4.25 nm. The average inhibition zone of CuO nanoparticles at concentration 10.000, 7.500, 5.000 and 2.500 ppm was 17.43 ± 1.81 ; 15.73 ± 0.40 ; 14.50 ± 2.96 and 9.67 ± 0.28 mm respectively.

Biosintesis ZnO Nanopartikel-CTAB dari Ekstrak Air Daun Jambu Biji, Ion Zn2+ dan CTAB: Karakterisasi dan Aplikasinya sebagai Antibakteri Escherichia coli Ahmad Fatoni; Ema Ratna Sari; Julia Ningsi; Nurlisa Hidayati
Chimica et Natura Acta Vol 11, No 1 (2023)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v11.n1.45995

Biosintesis ZnO nanopartikel-CTAB dilakukan dalam suasana basa dengan interaksi antara ion Zn2+ , CTAB dan media ekstrak air daun jambu biji. Tujuan dari penelitian ini adalah biosintesis ZnO nanopartikelCTAB, karakterisasi dan aplikasinya sebagai antibakteri. Karakterisasi produk ini dengan spektrofotometer FTIR dan XRD. Suspensi ZnO nanopartikel-CTAB digunakan sebagai antibakteri Escherichia coli dengan metode difusi sumuran. Gugus fungsi Zn-O muncul pada bilangan gelombang 486,06 cm-1 dan ukuran kristalinitas ZnO nanopartikel-CTAB diperkirakan sebesar 10,08 nm. Rata-rata zona hambat ZnO nanopartikel - CTAB terhadap Escherichia coli pada setiap konsentrasi adalah 9,10 -10,70 mm.

Pemanfaatan Kulit Buah Naga Merah (Hylocereus Polyrhizus) sebagai Media Uji Kualitatif Larutan Formalin: Edukasi Aplikasi Ilmu Kimia Kepada Siswa/I SMA N 1 Tanjung Lago Banyuasin Sumatera Selatan Ahmad Fatoni; Lasmaryna Sirumapea; Ade Arinia Rasyad; Reza Agung Sriwijaya; Nurlisa Hidayati
Jurnal Kreativitas Pengabdian Kepada Masyarakat (PKM) Vol 6, No 10 (2023): Volume 6 No 10 2023
Publisher : Universitas Malahayati Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33024/jkpm.v6i10.11175

ABSTRAK Kegiatan pengabdian kepada masyarakat (PKM) di SMA N 1 Tanjung Lago Banyuasin Sumatera Selatan mempunyai tema pemanfaatan kulit buah naga merah. Tujuan dari kegiatan ini adalah memberikan penyuluhan kepada siswa/I SMA N 1 Tanjung Lago tentang pemanfaatan ekstrak air kulit buah naga merah sebagai media uji kualitatif larutan formalin. Preparasi ekstrak air kulit buah naga merah adalah dengan metode blender yaitu mencampurkan kulit buah naga merah dengan aquades dalam suatu alat bantu blender. Ekstrak air kulit buah naga merah yang diperoleh kemudian diinteraksikan dengan larutan formalin 2 % (v/v) dan dilanjutkan dengan diskusi dari hasil interaksi yang terjadi. Hasil yang diperoleh menunjukan bahwa ekstrak air kulit buah naga merah dapat digunakan sebagai media uji secara kualitatif larutan formalin 2% (v/v). PKM ini telah diikuti 31 orang siswa/I SMA N 1 Tanjung Lago. Hasil diskusi, tanya jawab dan mengisi angket kuisioner menunjukan bahwa materi PKM, urutan dalam penyampaian materi, teknik atau cara penyampaian materi dan manfaat dari materi yang telah disampaikan mendapat sambutan atau penilaian rata-rata baik. Kata Kunci: Kulit Buah Naga Merah, Formalin, Penyuluhan ABSTRACT Community service activities at SMA N 1 Tanjung Lago Banyuasin, South Sumatra, focuses on the use of red dragon fruit peel. The purpose of this activity is to advise SMA N 1 Tanjung Lago students on the use of an aqueous extract of red dragon fruit peel as a qualitative test medium for formalin solutions. The preparation of aqueous red dragon fruit peel extract is carried out using the blender method, mixing red dragon fruit peel and distilled water in a blender. Aqueous extracts of recovered red dragon fruit peel were then interacted with a 2% (v/v) formalin solution to further discuss the consequences of the interactions that occurred. The results obtained showed that an aqueous extract of red dragon fruit peel can be used as a qualitative test media in a 2% (v/v) formalin solution. 31 students from SMA N 1 Tanjung Lago participated in this PKM. Discussions, questions and answers, and responses to surveys yielded favorable responses on average to PKM materials, the order in which materials were provided, the technique or method of providing materials, and the benefits of materials provided. Keywords: Red Dragon Fruit Peel, Formalin, Counseling

Co-Authors Ade Arinia Rasyad Adi Saputra Ahmad Fatoni Ahmad Fatoni Ahmad Fatoni Aldes Lesbani Ensiwi Munarsih, Ensiwi Euis Marsitho Hesti A. Harahap Julia Ningsi Kadek Asmadi Komala Syari Lasmaryna Sirumapea Reza Agung Sriwijaya Risfidian Mohadi Risfidian Mohadi Triayu Septiani Umy Habiba

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