KARAKTERISASI DAN EKSTRAKSI MINYAK DARI LUMPUR MINYAK BUMI MENGGUNAKAN PELARU…

Lumpur minyak bumi tergolong dalam limbah bahan berbahaya dan beracun (B3) yang dapat mencemari dan merusak lingkungan. Penelitian ini bertujuan untuk mempelajari karakterisasi sampel lumpur minyak bumi yang didapat dari PT Pertamina EP Prabumulih Field. Penelitian ini juga mempelajari pengaruh suhu dan waktu ekstraksi terhadap hasil minyak dengan pelarut toluena kombinasi surfaktan Triton X-10…

FORMULASI SABUN PADAT MENGGUNAKAN VIRGIN COCONUT OIL, EKSTRAK DAUN SIRSAK DAN…

Penelitian ini bertujuan untuk mengetahui formulasi pembuatan sabun padat menggunakan Virgin Coconut Oil, ekstrak daun sirsak, dan minyak atsiri kulit jeruk manis (citrus sinensis L.) yang memenuhi standar nasional indonesia. Virgin coconut oil yang dibuat dengan metode enzimatis menghasilkan rendemen sebesar 27,6%. Maserasi daun sirsak menggunakan pelarut etanol 96% menghasilkan rendemen sebes…

Teknik Reaksi Kimia Homogen

Edition

-

ISBN/ISSN

978-623-027-843-3

Collation

xiv, 221 hlm.; 23 cm

Series Title

-

Call Number

541.39 Kun t

Pengantar Kimia Organik

Edition

-

ISBN/ISSN

978-623-029-279-8

Collation

x, 242 hlm.; 25 cm

Series Title

-

Call Number

547 Ira p

Kimia dasar untuk teknik pertambangan

Edition

-

ISBN/ISSN

978-634-010-296-3

Collation

xii, 113 hlm.; 23 cm

Series Title

-

Call Number

540 Kri k

GREEN SYNTHESIS KITOSAN-PVA/Ag-CeO2 MENGGUNAKAN EKSTRAK DAUN MENGKUDU (Morind…

Crystal Violet Dye (CVD) is a toxic and persistent cationic dye that poses environmental risks. This study developed a Chitosan-PVA/Ag-CeO₂ composite via an environmentally friendly green synthesis using noni leaf extract (Morinda citrifolia L.). The composite was synthesized by coprecipitation, with chitosan and PVA as biopolymer matrices, Ag as a dopant to enhance photocatalytic and antibac…

PENGARUH TANAMAN KIAMBANG (SALVINIA MELOESTA) TERHADAP FITOREMEDIASI LOGAM BE…

This research aims to determine the effect of variations in copper (Cu) concentration on the phytoremediation of kiambang plants (Salvinia molesta). The research method was carried out by measuring the absorbance value of Cu solutions at concentrations of 3 ppm, 6 ppm, 9 ppm, 12 ppm and 15 ppm for 7 days with measurement intervals every 2 days using a UV-Vis spectrophotometer at a wavelength of…

PENGGUNAAN ADSORBEN BENTONIT PADA PEMURNIAN VIRGIN COCONUT OIL (VCO)

This study aims to determine changes in some characteristics of VCO purified using bentonite adsorbent. The VCO production process was carried out through enzymatic method using papain enzyme to maintain oil quality. Furthermore, the purification process was carried out using various bentonite concentrations (3%, 5%, and 10%) to adsorb residual protein, water, and other impurity compounds. This…

ANALISIS GEOKIMIA MATERIAL POTENTIALLY ACID FORMING (PAF) DAN NON-ACID FORMIN…

The research area is located under PT's mining business license (IUP). Gorby Putra Utama, in the Rawas Ilir district of North Musi Rawas Regency, South Sumatra. This research aims to identify materials indicated as potentially acid-forming (PAF) and non-acid-forming (NAF), as well as factors influencing the formation of acid mine drainage (AMD) in the research area. This study also aims to desc…

Identifying wood accurate result with simple tools

Edition

-

ISBN/ISSN

978-0-942391-04-6

Collation

978-0-942391-04-6

Series Title

-

Call Number

674.1 Hoa I

UJI KINERJA DAN DAYA TAHAN MEMBRANE ELECTRODE ASSEMBLY (MEA) DENGAN KATALIS P…

The use of fossil fuels such as coal, petroleum, and natural gas, which have a negative impact on the environment, has encouraged the development of clean and sustainable renewable energy sources, one of which is hydrogen, which can be used as fuel in fuel cells to generate electrical energy. One type of fuel cell that has been widely developed is the Proton Exchange Membrane Fuel Cell (PEMFC),…

SINTESIS BENTONIT/ZnO-GO UNTUK ADSORPSI ZAT WARNA METILEN BIRU

Methylene blue is a cationic dye. The reduction of methylene blue dye waste was carried out through an adsorption process. This study was conducted by activating bentonite and synthesizing bentonite/ZnO-GO as an adsorbent to remove methylene blue dye. The composite was synthesized using an ultrasonic method and its performance was evaluated based on variations in pH, concentration, adsorbent ma…

SINTESIS BENTONIT-Fe3O4/GRAPHENE OXIDE UNTUK DEGRADASI ZAT WARNA METILEN BIRU

Methylene blue is a dye widely used in the textile industry due to its high photostability; however, its release into aquatic environments poses significant risks to aquatic organisms and human health. In this study, a Bentonite–Fe₃O₄/Graphene Oxide composite was synthesized for the degradation of methylene blue. The synthesis was carried out using ultrasonic-assisted and co-precipitation…

HIDROLISIS SELULOSA DENGAN KATALIS BIOCHAR TERSULFONASI PADA VARIASI SUHU DAN…

ABSTRACT : Cellulose hydrolysis is the process of breaking down β-1,4 glycosidic bonds into glucose and its derivatives. The cellulose hydrolysis reaction can be accelerated by sulfonated biochar catalysts from oil palm empty fruit bunches (OPEFB) and coconut shells (CS). This study was conducted to determine the effect of temperature and catalytic time variations of sulfonated biochar hydroth…

PENGEMBANGAN E-LKM BERBASIS PROJECT BASED LEARNING PENGELOLAAN LABORATORIUM K…

This development research aims to produce Electronic Student Worksheet products based on Project Based Learning Chemical Laboratory Management that are valid, practical and effective. This research was conducted at the Chemistry Education Study Program of Sriwijaya University with the subject of chemistry education students who took the chemical laboratory management course in the 2024/2025 aca…

PENGARUH PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP HASIL B…

This research aims to determine the effect of applying the Problem Based Learning learning model on the learning outcomes of class X students on the Periodic System of Elements material. This research was carried out at SMA Negeri 1 Indralaya in November of the 2024/2025 academic year. The research method used was quasi-experimental with a nonequivalent control group design. The variables in th…

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS PROJECT BASED LEARNIN…

This research aims to produce a Student Worksheet (LKPD) based on Project Based Learning redox material for grade XII high school that is valid, practical, and effective. The research method used is development research with a modified Rowntree development model with Tessmer's formative evaluation. The subject of this study is students of class XII.5 SMA Negeri 6 Prabumulih. The results of the …

PENGARUH LKPD BERBASIS PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA PA…

This research aims to determine the effect of problem based learning LKPD on student learning outcomes in class X high school atomic structure material. This research was carried out at SMA Negeri 1 Indralaya in the 2023/2024 academic year. The research method used was an experiment with a Quasi Experimental design in the form of a nonequivalent control group design. The sampling technique used…

FORMULASI EKSTRAK ETANOL DAUN SIRSAK (ANNONA MURICATA) DAN DAUN BUNGUR (LAGER…

Soursop leaves (Annona muricata) and bungur leaves (Lagerstroemia speciosa) are tropical plants that have long been used in traditional medicine for various health conditions such as antidiabetes. This study aims to obtain the optimal combination formulation of soursop (Annona muricata) and bungur (Lagerstroemia speciosa) leaf extracts as antidiabetic activity in vitro. The yield of 70% ethanol…

PENGEMBANGAN LEMBAR KERJA MAHASISWA (LKM) PRAKTIKUM KIMIA FISIKA II BERBASIS …

This study aims to develop a green chemistry–based Student Worksheet (LKM) for the electrical conductivity practicum in the Physical Chemistry II course that is valid, practical, and effective. The study employed the ADDIE model up to the Development stage and Tessmer’s formative evaluation, including self-evaluation, expert validation, one-to-one evaluation, small group evaluation, and fie…

PENGEMBANGAN LEMBAR KERJA MAHASISWA (LKM) PADA MATA KULIAH PRAKTIKUM KIMIA FI…

This study aims to develop a Green Chemistry–based Student Worksheet (LKM) for the Physical Chemistry I laboratory on Vapor–Liquid Equilibrium in Binary Systems that is valid, practical, and effective. The development applied the ADDIE model up to the Development stage and used Tessmer’s formative evaluation, including self-evaluation, expert review, one-to-one, small-group, and field tes…

PENGEMBANGAN LEMBAR KERJA MAHASISWA (LKM) PRAKTIKUM KIMIA FISIKA 2 MATERI TIT…

This study aims to produce a Student Worksheet (LKM) for Physical Chemistry 2 Practicum on conductometric titration based on Green Chemistry that is valid, practical, and effective. The research method used is developmental research with the ADDIE development model modified with Tessmer's formative evaluation. The subjects of this study were third-semester chemistry education students during th…

PENGEMBANGAN LEMBAR KERJA MAHASISWA (LKM) BERBASIS GREEN CHEMISTRY PRAKTIKUM …

This research aims to develop a Green Chemistry-based Student Worksheet (LKM) for the Physical Chemistry II Practicum on the topic of Solubility as a Function of Temperature that is valid, practical, and effective. The research method used was Research and Development (R&D), combining the ADDIE (Analysis, Design, Development) model and Tessmer's formative evaluation. Data was collected through …

PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS PROJECT BASED LEARNIN…

The study entitled Development of a Project-Based Learning Student Worksheet (LKPD) Oriented toward Sustainable Development Goals (SDGs) on Green Chemistry Material was conducted with students of class X-1 at SMA Negeri 1 Indralaya Utara. The development procedure followed the Rowntree model combined with Tessmer’s formative evaluation. The objective of this research was to produce a reaction…

SINTESIS CaO DARI CANGKANG KERANG HIJAU DAN MODIFIKASI CaO MENGGUNAKAN SODIUM…

Penggunaan kerang hijau yang sangat banyak mengakibatkan limbah cangkang kerang hijau meningkat pesat. Cangkang kerang hijau digunakan sebagai bahan utama sintesis CaO dan modifikasi CaO/SDS. Modifikasi CaO dilakukan perbandingan berat CaO terhadap SDS yaitu (2:1) dan (1:1). Sintesis CaO menggunakan metode ekstraksi dan presipitasi. Adanya penambahan SDS berfungsi sebagai pencegah aglomerasi. H…

PENGARUH WAKTU ULTRASONIK DAN TEMPERATUR PEMANASAN TERHADAP KUALITAS OKSIDA G…

Grafena merupakan salah satu bentuk alotrop karbon yang memiliki sifat termal, listrik, katalitik, dan optik yang tinggi sehingga dapat digunakan dalam berbagai bidang. Grafena memiliki turunan berupa oksida grafena (GO) dan oksida grafena tereduksi (rGO). Oksida grafena disintensis menggunakan metode Hummer, serta oksida grafena tereduksi disintensis menggunakan metode reduksi multifase. Pada …

ANALISIS BERPIKIR KRITIS PESERTA DIDIK DALAM MENYELESAIKAN SOAL HOTS MATERI S…

Critical thinking ability is a necessary ability in the super smart society 5.0 era which plays an important role in improving the quality of human resources. Critical thinking is included in the design of 21st century learning skills that are relevant to the demands of the Independent Learning Curriculum. Students' critical thinking skills can be trained by providing HOTS (Higher Order Thinkin…

SPESIASI ION LOGAM KROM (III) DAN KROM (VI) PADA SEDIMEN DI SUNGAI OGAN MENGG…

Telah dilakukan penelitian spesiasi ion logam krom (III) dan krom (VI) menggunakan metode potensiometri sel konsentrasi. Tujuan penelitian untuk memvalidasi metode dan menentukan distribusi spesies ion logam krom (III) dan krom (VI) dalam sedimen. Metode potensiometri sel konsentrasi memiliki rangkaian alat berupa anoda dan katoda yang terhubung dengan jembatan garam KCl dan elektroda logam Cr.…

KONVERSI MINYAK JELANTAH MENJADI BIODIESEL MELALUI REAKSI ESTERIFIKASI DAN TR…

Konversi minyak nabati dapat dilakukan dengan metode elektrolisis sebagai metode alternatif. Tujuan konversi minyak bekas dengan metode elektrolisis untuk memproduksi biodiesel dengan memperhatikan kuat arus dan waktu reaksi. Sampel minyak bekas yang digunakan memiliki nilai asam lemak bebas (ALB) sebesar 0,379%. Reaksi esterifikasi dilakukan sebagai pretreatment sebelum melakukan reaksi transe…

PENGEMBANGAN SOAL KIMIA MATERI LAJU REAKSI KELAS XI SMA

This research to produce a product in the form of valid and reliable chemistry questions on reaction rate material and to know the level of difficulty, and discriminative power of these questions. This research uses the 4D development model which consists of 4 stages, namely define, design, develop and disseminate. Product feasibility testing was carried out in two stages, namely expert apprais…