Zobrazeno 1 - 10
of 182
pro vyhledávání: '"W. Widiyastuti"'
Publikováno v:
Heliyon, Vol 10, Iss 5, Pp e26691- (2024)
A comparison of the amine-modified silica particle’s characteristics via ex- and in-situ routes and their application as a CO2 gas adsorbent is reported. Modifying silica particles via ex-situ involves two separate steps: forming porous silica part
Externí odkaz:
https://doaj.org/article/73fb42ff58894786af8c3024f0c0143e
Autor:
Sella Ramadhani Alya Sasono, Mahardika F. Rois, W. Widiyastuti, Tantular Nurtono, Heru Setyawan
Publikováno v:
Results in Engineering, Vol 18, Iss , Pp 101070- (2023)
The high demand for supercapacitors has led to the importance of developing low-cost and eco-friendly materials. Instead of powders, nanofibers were widely developed as a carbon source to increase their durability and ease of handling. Herein, we rep
Externí odkaz:
https://doaj.org/article/36de070b565349edb237046d95f203c9
Autor:
Vuri Ayu Setyowati, Mahardika F. Rois, W. Widiyastuti, Siti Nurkhamidah, Naili Saidatin, Mohammad Ficky Febrianto
Publikováno v:
Results in Engineering, Vol 13, Iss , Pp 100332- (2022)
The objective of this research is to illustrate the effects of using transition metals and nitrogen-doped carbon obtained from the polymerization process. The pyrolysis method is chosen to optimize the role of each catalytic component such as metal p
Externí odkaz:
https://doaj.org/article/d225e045d0634992a39afd1f943d6a4d
Publikováno v:
Arabian Journal of Chemistry, Vol 14, Iss 6, Pp 103162- (2021)
As the second most abundant bio-resource and as a byproduct of lignocellulose material processing, alkali lignin has to become a quantitative issue due to its difficulties to handle. On the other hand, lignin has high natural carbon contents, so it h
Externí odkaz:
https://doaj.org/article/134b4d9bcc684916b8d324126e7eb4a5
Publikováno v:
International Journal of Technology, Vol 10, Iss 3, Pp 603-612 (2019)
The volume fraction dependent morphological transition of droplets during the evaporation of colloidal silica solution was investigated using the spray-drying method. The colloidal solution was prepared from sodium silicate using the sol-gel metho
Externí odkaz:
https://doaj.org/article/4f9763d6376b44baab40f2bf6a002f53
Autor:
K. Kusdianto, W. Widiyastuti, Manabu Shimada, Tantular Nurtono, Siti Machmudah, Sugeng Winardi
Publikováno v:
International Journal of Technology, Vol 10, Iss 3, Pp 571-581 (2019)
The degradation of organic pollutants using photocatalysis is more effective than conventional methods, with ZnO being the most widely used of the various semiconductor materials for application in photocatalysis. Unfortunately, degradation effici
Externí odkaz:
https://doaj.org/article/378bb9eb547547d0ab17291bbdd3efd1
Autor:
Heru Setyawan, W. Widiyastuti
Publikováno v:
KONA Powder and Particle Journal, Vol 36, Iss 0, Pp 145-155 (2018)
Magnetite (Fe3O4) is one of the most important iron oxides due to its extensive range of application in various fields. The characteristics of magnetite can be considerably enhanced by reducing the particle size to the nanometer scale. When novel fun
Externí odkaz:
https://doaj.org/article/920d3ac6c5864a279f296e05e1f32c80
Publikováno v:
International Journal of Technology, Vol 7, Iss 6, Pp 981-988 (2016)
Nanostructured zinc oxide (ZnO) was synthesized via a sonochemical method. The effect of the duration of ultrasonic irradiation in a continuous mode on the generated particles was investigated. Additionally, the effect of flowing either air or nit
Externí odkaz:
https://doaj.org/article/96214795c12e4dca835dbf02086d8d7b
Publikováno v:
Chemical Engineering Transactions, Vol 56 (2017)
Zinc oxide (ZnO) nanoparticles were successfully synthesised in solvothermal batch reactor using zinc acetate as precursor and ethanol as solvent, without any surfactant addition. Commercial batch Teflon reactor of 21 mL was used and filled 80 % capa
Externí odkaz:
https://doaj.org/article/776038bbf1a74b4cbe1c2ae4c021a265
Autor:
Hendrix Abdul Ajiz, Abdurrahman Anis Albar, W Widiyastuti, Tantular Nurtono, Heru Setyawan, I Made Joni
Publikováno v:
Periodica Polytechnica Chemical Engineering. 66:585-595
This study reported the effect of sodium lauryl sulfate (SLS) as a template on silica morphology and its properties. The precursor was prepared by producing silica nanofluid by the sol-gel method and mixed with various SLS concentrations. After that,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b10bbb2d7d68188eaed598770c313fd
https://doi.org/10.3311/ppch.19730
https://doi.org/10.3311/ppch.19730