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Journal : Jurnal Natural

The removal of remazol brilliant blue dyes from liquid waste using nano montmorillonite from bentonite of Bener Meriah Aceh JULINAWATI JULINAWATI; FATHURRAHMI FATHURRAHMI; IRFAN MUSTAFA; DETA RAHMADANTI
Jurnal Natural Volume 22 Number 2, June 2022
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (704.213 KB) | DOI: 10.24815/jn.v22i2.24394

Abstract

Research on the potential of nano montmorillonite as an adsorbent for Remazol Brilliant Blue dye waste has been carried out. Nano montmorillonite was isolated from Bener Meriah bentonite, Aceh, to be used as an adsorbent. The optimum conditions for adsorption of Remazol Brilliant Blue dye using nano montmorillonite occurred at a contact time of 60 minutes, pH 4, and adsorbent mass of 2 grams. The results showed that the adsorption of Remazol Brilliant Blue dye by nano montmorillonite followed the Freundlich isotherm model with R2 = 0.9858. The results of the regeneration test show that the montmorillonite nano adsorbent can be used repeatedly
BIODEGRADABLE PLASTICS FROM A MIXTURE OF LOW DENSITY POLYETHYLENE (LDPE) AND CASSAVA STARCH WITH THE ADDITION OF ACRYLIC ACID Susilawati Susilawati; Irfan Mustafa; Desy Maulina
Jurnal Natural Volume 11, Number 2, September 2011
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (715.228 KB)

Abstract

A research of preparation biodegradable plastics, from LDPE and cassava starch mixture with the addition of acrylic acid, had been conducted. This research purpose to  studied compatibility properties of the material and percent weight loss during the biodegradation test. Optimum weight loss (59,26% ) was showed after 60 days witches LDPE and starch composition ratio 6 : 4 (w/w)  while tensile strength  equal to 0,38 Kgf/mm2.  SEM characterization showed that biodegradation has occurred by  formation of hole in the biodegradable plastic surface. DTA test gave Tg = 130 °C, Tm = 230 °C and Td = 370-450 °C while FT-IR analysis showed that the biodegradable plastics have a chemistry interaction.
BIODEGRADABLE PLASTICS FROM A MIXTURE OF LOW DENSITY POLYETHYLENE (LDPE) AND CASSAVA STARCH WITH THE ADDITION OF ACRYLIC ACID Susilawati Susilawati; Irfan Mustafa; Desy Maulina
Jurnal Natural Volume 11, Number 2, September 2011
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (715.228 KB)

Abstract

A research of preparation biodegradable plastics, from LDPE and cassava starch mixture with the addition of acrylic acid, had been conducted. This research purpose to  studied compatibility properties of the material and percent weight loss during the biodegradation test. Optimum weight loss (59,26% ) was showed after 60 days witches LDPE and starch composition ratio 6 : 4 (w/w)  while tensile strength  equal to 0,38 Kgf/mm2.  SEM characterization showed that biodegradation has occurred by  formation of hole in the biodegradable plastic surface. DTA test gave Tg = 130 °C, Tm = 230 °C and Td = 370-450 °C while FT-IR analysis showed that the biodegradable plastics have a chemistry interaction.