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All Journal Jurnal Sains dan Seni ITS IPTEK Journal of Proceedings Series Alchemy : Journal of Chemistry Indonesian Journal of Chemistry Akta Kimia Indonesia Indonesian Journal of Chemical Analysis (IJCA) Sewagati Bulletin of Chemical Reaction Engineering & Catalysis

Yatim Lailun Ni’mah

Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Institut Teknologi Sepuluh Nopember, Keputih, Sukolilo, Surabaya 60111, Indonesia

Author-ID : 3960109

Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Public Health Social Sciences Other

Published : 14 Documents Claim Missing Document

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Determination of Shelf Life with Accelerated Shelf Life Testing (ASLT) in Beverage Seaweed Niâ€™mah, Yatim Lailun; Suprapto, Suprapto; Ilmi, Moh. Mualliful; Agustin, Nuril Indah; Ameswari, Vennycha Dwi
IPTEK Journal of Proceedings Series No 1 (2018): 3rd International Seminar on Science and Technology (ISST) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i1.3533

In this research has been made beverage seaweed from main ingredient of red seaweed type Eucheuma cottonii with added other food ingredients that serve to improve the taste. In addition to labeling and commercially produced, it is necessary to determine the shelf life in seaweed beverage. Determination of shelf life of beverage seaweed was done by Accelerated Shelf Life Testing (ASLT) method. Beverage seaweed studied there are two flavors of original taste and green tea. Based on parameters of pH value, shelf life of original taste is 17 days and the taste of green tea is 34 days. The result is for storage at room temperature 30 Â°C

Studi Konduktivitas Solid Polymer Electrolyte (SPE) PEO (Poly Ethylene Oxide) dengan Fly ash dari PT. TJIWI KIMIA Sidoarjo Arlita Sandya Satya Wardhani; Yatim Lailun Ni'mah; Harmami Harmami
Jurnal Sains dan Seni ITS Vol 6, No 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM), ITS

Pengaruh penambahan abu layang pada Solid Polymer Electrolyte (SPE) PEO (Poly Ethylene Oxide) dan garam LiClO4 (Lithium Perchlorate) telah diteliti. Kristalinitas PEO berkurang secara signifikan karena penggabungan PEO-LiClO4-abu layang, yang diuji menggunakan X-Ray Diffraction (XRD). Interaksi ion-polimer, khususnya interaksi antara kation LiClO4-abu layang dengan atom eter oksigen dari PEO, telah dibuktikan dengan FTIR. Penambahan abu layang 5% meningkatkan nilai konduktivitas ionik SPE yaitu 1,730 x 10-4 S/cm pada suhu 60 oC. Sedangkan nilai konduktivitas ionik PEO murni sebesar 7,859 x 10-6 S/cm dan 6,863 x 10-5 S/cm untuk PEO-LiClO4 pada suhu yang sama. Hasil dalam penelitian ini menunjukkan bahwa SPE PEO dengan penambahan LiClO4 dan abu layang merupakan salah satu material elektrolit untuk baterai ion lithium.

Synthesis of Titanium Dioxide Nanoparticles (3nm) by adding PEO Yatim Lailun Ni'mah
Akta Kimia Indonesia Vol 2, No 1 (2017)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember

Nanosized Titanium dioxide (TiO) powder was synthesized via hydrothermal method using titanium tetrachlorida (TiCl4) as the precursor and add PEO (Mw = 600.000). The as prepared nano powder was used for further characterization. The phase transformation was investigated by an X-ray diffractometer (XRD). The grain size of the TiO2 particle was found to be 3.4 nm. Experimental results have shown that the as-prepared powders have entirely consisted with anatase crystalline phase.

SYNTHESIS AND CHARACTERIZATION OF HDPE PLASTIC FILM FOR HERBICIDE CONTAINER USING FLY ASH CLASS F AS FILLER Yatim Lailun Ni’mah; Lukman Atmaja; Hendro Juwono
Indonesian Journal of Chemistry Vol 9, No 3 (2009)
Publisher : Universitas Gadjah Mada

High Density Polyethylene (HDPE) plastic plays an important role in various applications, for example, it can be used as a container (bottle). Petrokimia Kayaku Company, a branch of Petrokimia Company of Gresik, produces herbicides using HDPE plastic bottles as their container. Those plastic bottles undergo degradation (kempot) for certain period of time. The aim of this research is to characterize and to synthesize the HDPE plastic film with class F fly ash as filler. The results expected from this research are producing the plastic with a better properties and durability. This research was initiated by taking the sample of HDPE plastic bottle and herbicides (containing Gramakuat, on active material parakuat dichloride) at Petrokimia Kayaku Company. Both the initial HDPE and the degraded bottles was analyzed their tensile strength and Fourier Transform-Infra Red (FTIR) spectral. The next step was to synthesize the HDPE plastic film using class F fly ash as filler and a coupling agent. The filler concentrations were 0%, 5%, 10%, 15%, and 20wt %. The best result was 5% filler concentration with tensile strength of 27.7 lbs. This HDPE film was then subjected to degradation test using pyridine solution with various concentrations (1%, 3% and 5%) for two weeks, thermal degradation at 100 °C for two weeks and chemical resistance by xylene with soak time variation of 24 h, 98 h and 168 h. The result of degradations test show that the value of tensile strength was decreased with the increase of filler consentration. The chemical resistance, however, was increased.

Improvement of Cycling Performance of Na2/3Co2/3Mn1/3O2 Cathode by PEDOT/PSS Surface Coating for Na Ion Batteries Yatim Lailun Ni’mah; Ju Hsiang Cheng; Ming Yao Cheng; Wei Nien Su; Bing Joe Hwang
Indonesian Journal of Chemistry Vol 18, No 1 (2018)
Publisher : Universitas Gadjah Mada

The surface-modified Na2/3Co2/3Mn1/3O2 is coated with a conductive Poly (3,4-Ethylene dioxy thiophene)-poly (styrene sulfonate) (PEDOT/PSS) polymer, and their resulting electrochemical properties were investigated as Na-ion battery cathode. The surface-modified Na2/3Co2/3Mn1/3O2 cathode material exhibits a high discharge capacity and good rate capability due to enhanced electron transport by surface PEDOT/PSS. The presence of PEDOT/PSS surface layer suppresses the growth of a resistive layer, while the dissolution of transition metals of the active cathode materials is inhibited as well. The resulting surface-modified Na2/3Co2/3Mn1/3O2 shows superior cycling performance, which is much stable than the pristine one as being the Na-ion battery cathode.

Extraction of Alumina from Red Mud for Synthesis of Mesoporous Alumina by Adding CTABr as Mesoporous Directing Agent Eka Putra Ramdhani; Tri Wahyuni; Yatim Lailun Ni’mah; Suprapto Suprapto; Didik Prasetyoko
Indonesian Journal of Chemistry Vol 18, No 2 (2018)
Publisher : Universitas Gadjah Mada

Mines in Bintan were producing bauxite for many years. The production process of bauxite to alumina produced much red mud. From X-ray Fluorescence (XRF), alumina content on Bintan’s red mud was 28.87 wt.%. This research was studying on the extraction alumina from red mud with reduction of hematite (Fe2O3) and desilication processes. After extraction process alumina was collected about 52.89 wt.%. Synthesis of mesoporous alumina from red mud using sol-gel method at the room temperature for 72 h with cetyltrimethylammonium bromide (CTABr) as mesoporous directing agent. The CTABr/Al-salt ratio, i.e. 1.57; 4.71 and 7.85 with the sample code of AMC-1, AMC-3, AMC-5, respectively. The product was calcined at 550 °C for 6 h. The synthesized materials were characterized by X-ray Diffraction (XRD), scanning electron microscopy-energy dispersive X-ray (SEM-EDX), transmission electron microscopy (TEM), and N2 adsorption-desorption techniques. XRD pattern of AMC-1, AMC-3, and AMC-5 showed that all synthesized materials have amorphous phase. The morphology were wormhole aggregate that were showed by SEM and TEM characterization. N2 adsorption-desorption characterization showed the distribution of pore size of about 3.2 nm. The highest surface area and pore volume were obtained in solid-solid ratio CTABr/GM-AL by 1.57 (AMC-1) i.e. 241 m2/g and 0.107 cm3/g, respectively.

Synthesis of Amorphous Aluminosilicates from Bintan’s Red Mud as Alumina Source Futri Wulandari; Eka Putra Ramdhani; Yatim Lailun Ni’mah; Ahmad Anwarud Dawam; Didik Prasetyoko
Indonesian Journal of Chemistry Vol 18, No 4 (2018)
Publisher : Universitas Gadjah Mada

Red mud is a generated by-product in alumina production from bauxite ore. In this study, Bintan’s red mud has been used as alumina and silica source to synthesize amorphous mesoporous aluminosilicates material. Alkali fusion method with a NaOH/red mud ratio 0.8; 1.0; 1.2; 1.4 and 1.5 followed by hydrolysis method was used to extract dissolved alumina and silica from red mud. Synthesis of amorphous aluminosilicates by hydrothermal method was conducted at 80 °C for 24 h. Cetyltrimethylammonium bromide (CTABr) was added as the structure directing agent. Aluminosilicate products were characterized using FTIR spectroscopy (Fourier Transform Infra-Red Spectroscopy), XRD (X-ray Diffraction), SEM (Scanning Electron Microscopy), and nitrogen adsorption-desorption. XRD and SEM result shows that the product was amorphous with low uniformity in terms of surface morphology and particle size. Nitrogen adsorption-desorption profile shows that all aluminosilicates products has a meso pore structure, confirmed by the highest pore distribution at 3.05–17.70 nm. The highest surface area and pore volume were obtained in ASM 0.8 (NaOH/red mud ratio = 0.8) i.e. 177.97 m2/g and 1.09 cm3/g, respectively.

Synthesis of Copper Nanoparticles Using Chromolaena odorata (L.) Leaf Extract as A Stabilizing Agent Suprapto Suprapto; Cantika Alda Hafshah Handoyo; Putri Ayu Senja; Veto Barid Ramadhan; Yatim Lailun Ni'mah
Indonesian Journal of Chemical Analysis (IJCA) Vol. 3 No. 1 (2020): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol3.iss1.art2

Analisis Kuat Tarik dan Elongasi Film Gelatin – Khitosan Abdul Wafi; Lukman Atmaja; Yatim Lailun Ni’mah
ALCHEMY:Journal of Chemistry Vol 8, No 1 (2020): ALCHEMY: Journal of Chemistry
Publisher : Department of Chemistry, Faculty of Science and Technology UIN Maulana Malik Ibrahim Malan

Gelatin and chitosan have been widely used in various industries such as pharmaceuticals, textiles, cosmetics, food processings, and others. Gelatin has different mechanical properties compared to chitosan, especially its tensile strength and elongation. In this study, gelatin (Ge) was obtained commercially, while chitosan (Ch) was obtained from the skin of windu shrimp via deproteination, demineralization, and deacetylation of chitin into chitosan. The results of this study indicated that the degree of deacetylation of chitosan was 52.06%. Afterward, various films including Ge, Ch, Ge 4%-Ch 1.5%, Ge 4%-Ch 3%, Ge 4%-Ch 4% were prepared by the casting method. The film of Ge 4%-Ch 4% exhibited the best tensile strength and elongation with values of 0.6 MPa and 21.53%, respectively. Gelatin dan kitosan merupakan biopolimer alam yang selama ini banyak digunakan di berbagai industri seperti farmasi, tekstil, kosmetik, pengolahan pangan dan lain sebagainya. Gelatin memiliki sifat mekanik yang berbeda dibandingkan dengan kitosan terutama kuat tarik dan elongasinya. Pada penelitian ini, gelatin (Ge) diperoleh secara komersial, sedangkan kitosan (Ch) diperoleh dari kulit udang windu melalui proses deproteinasi, demineralisasi, dan deasetilasi kitin menjadi kitosan. Hasil penelitian ini menunjukkan derajat deasetilasi kitosan sebesar 52,06%. Selanjutnya, dilakukan proses pembuatan film Ge, Ch, Ge 4%-Ch 1,5%; Ge 4%-Ch 3%, Ge 4%-Ch 4% dengan menggunakan metode casting. Film Ge 4%-Ch 4% memiliki kuat tarik dan elongasi yang paling baik yaitu 0,6 MPa dan 21,53%, berturut-turut.

Sosialisasi Halal dan Pendampingan Sertifikasi Halal untuk UMKM Kelurahan Simokerto Ita Ulfin; Lienggar Rahadiantino; Harmami; Yatim Lailun Ni’mah; Hendro Juwono
Sewagati Vol 6 No 1 (2022)
Publisher : Pusat Publikasi ITS

Produksi produk halal menjadi kewajiban yang harus memenuhi syariat Islam, yaitu secara kebersihan, kualitas, dan keamanan proses produksi harus di bawah sistem manajemen mutu halal. Kebersihan menjadi hal penting dalam kajian halal meliputi kebersihan personal, peralatan, tempat produksi, dan proses produksi. Hal ini untuk memastikan produk aman untuk dikonsumsi.Kegiatan pengabdian ini bertujuan memfasilitasi pelaku UMKM dalam proses perbaikan produksi dalam pendampingan sertifikasi halal. Subjek dalam penelitian ini adalah pelaku UMKM yang berlokasi di Kelurahan Simokerto, Kota Surabaya.Metode yang dilakukan, antara lain pendampingan awal, pelaksanaan, pendampingan, serta evaluasi keberlanjutan untuk mendapatkan sertifikasi halal pada UMKM. Berdasarkan kegiatan ini, dapat dihasilkan perbaikan produksi halal dan memfasilitasi pengajuan sertifikasi dan jaminan halal, tidak hanya pada penggunaan bahan baku, hingga menjamin proses produksi dan pemasaran menggunakan metode halal. Selain itu, tim pengabdi juga mendorong pelaku UMKM untuk meningkatkan kesadaran mendorong untuk menjamin kualitas halal pada produk yang telah diproduksi.

Co-Authors Abdul Wafi Adityo Pratomo Putro Agustin, Nuril Indah Ahmad Anwarud Dawam Alvida Mustika Rukmi Ameswari, Vennycha Dwi Ananda Krisna Aldianita Anisa Rahma Maharani Ardi Lukman Hakim Arlita Sandya Satya Wardhani Aunurohim Aunurohim Bing Joe Hwang Cantika Alda Hafshah Handoyo Cicilia Puspa Rini Dheva Noveilya Didik Prasetyoko Djarot Sugiarso Dyah Ayu Fatmawati Eka Putra Ramdhani Feraldy A. Putrama Fiqey Indriati Eka Sari Futri Wulandari Harmami Harmami Haryo Satriya Oktaviano Hendro Juwono Hendro Juwono Herdayanto Sulistyo Putro Imelda Priskila Simanjuntak Ita Ulfin Ju Hsiang Cheng Lienggar Rahadiantino Lisna Efiyanti Lukman Atmaja M Daffa Aditya Mardi Santoso Maria Ulfa Ming Yao Cheng Moh. Mualliful Ilmi, Moh. Mualliful Nabilah Dita Anaqah Ni Kadek Githa Kartika Gunadyani Nia Meisa Wulandari Nor Farida Nurul Hidayat Putri Ayu Senja Ruzain Rafie Sukma Putra Safa Annissa Novianti Satriyo Dibyo Sumbogo Savitri Larasati Suprapto - Suprapto Suprapto Suprapto Suprapto Suprapto Suprapto, Suprapto Susi Agustina Wilujeng Susy Budi Astuti SYAIFUL BAHRI Taslim Ersam Tri Wahyuni Vanuella Tresnaning Budi Veto Barid Ramadhan Wega Trisunaryanti Wega Trisunaryanti Wei Nien Su Yaqdhan Nufal Rafi

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