A dye sensitized solar cell (DSSC) is a low-cost solar cell with attractive features. DSCC contains of photo electrode, dye, electrolyte, and counter electrode with photo electrochemical system. The aim of this research ...

This study aims to find secondary metabolites isolated from the leaves of the Jarum Tujuh Bilah (Leuenbergeria bleo (Kunth) D.C.). The method used was maceration, fractionation and column chromatography and was identified ...

Degradation of blue dye waste in Sarong Samarinda production using WO3-bleaching earth (BE) has been conducted. Structural and morphological characterization has conducted using X-ray diffraction (XRD), and Scanning ...

The preparation of WO3-ZnO composites through the solid state reaction has been conducted. The research stages included mixing WO3 and ZnO solids with the addition of polyvinyl alcohol, drying, sieving and heating. WO3 ...

Study of computation on zeolite LTA (Linde Type A) interaction with alkaline cation (Li+, Na+, K+) using mechanical moleculer method was conducted. Data processing was conducted computationally using Hyperchem 7.0 with ...

Penelitian tentang validasi metode penentuan kadar benzena, toluena dan xilena pada sampel udara dan tanah dengan menggunakan kromatografi gas telah dilakukan. Untuk mendapatkan hasil pengukuran yang valid, beberapa ...

In this research, lipase produced from the bacteria Pseudomonas aeruginosa was immobilized on rice husk silica-coated Fe3O4 nanoparticles. The process included the following steps: preparation of magnetic ferosoferic ...

In this research, KOH has been impregnated on Deoiled Spent Bleaching Earth (DSBE) with wet method as a catayst. KOH was impregnated on DSBE of 40 % and 60 % (w/w), then characterized using XRay Flourescence (XRF), X-Ray ...

An investigation was conducted on palm oil refinery waste-spent bleaching earth (POR-SBE), POR-SBE supported by calcium as catalysts for methyl esters production through transesterification process using waste frying ...