Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Akhmad Syoufian"'
Autor:
Akhmad Syoufian, Rian Kurniawan
Publikováno v:
Indonesian Journal of Chemistry, Vol 24, Iss 4, Pp 1218-1227 (2024)
Nickel (Ni) and nitrogen (N) as codopants had been introduced into ZrO2-TiO2 composite photocatalyst. The objectives of this study are to investigate the codoping effect of Ni and N, as well as the calcination temperature towards the ability to photo
Externí odkaz:
https://doaj.org/article/f2ba0033cde1444d9418a8c9aa052536
Publikováno v:
Indonesian Journal of Chemistry, Vol 24, Iss 2, Pp 519-529 (2024)
Codoping of nitrogen and copper into zirconium titanate composite (Cu-N-codoped ZrTiO4) was carried out through a sol-gel process. This study aimed to investigate the effect of copper and nitrogen dopants on the photocatalytic activity of ZrTiO4 comp
Externí odkaz:
https://doaj.org/article/c41ba4f174514564880bd06d02cb735b
Autor:
Aldino Javier Saviola, Karna Wijaya, Akhmad Syoufian, Wahyu Dita Saputri, Dita Adi Saputra, Ilyas Taufik Abdul Aziz, Won-Chun Oh
Publikováno v:
Case Studies in Chemical and Environmental Engineering, Vol 9, Iss , Pp 100653- (2024)
The objectives of this study were to determine the optimum phosphoric acid concentration that produces a PO4–ZrO2 catalyst with the best acidity and examine its performance in the catalytic hydroconversion of used palm cooking oil. The catalysts we
Externí odkaz:
https://doaj.org/article/cad60f9ec3054618ab576a17ec6892ad
Autor:
Akhmad Syoufian, Rian Kurniawan
Publikováno v:
Indonesian Journal of Chemistry, Vol 23, Iss 3, Pp 661-670 (2023)
Composites of manganese and nitrogen-codoped zirconium titanate (Mn,N-codoped ZrTiO4) had been synthesized by the sol-gel method as a visible-light responsive photocatalyst for the photodegradation of methylene blue (MB). Synthesis was conducted at 2
Externí odkaz:
https://doaj.org/article/7b6ff23ae7594b8198de023403f7f58a
Publikováno v:
Indonesian Journal of Chemistry, Vol 23, Iss 2, Pp 416-424 (2023)
Synthesis and characterization of copper-and-nitrogen-codoped zirconium titanate (Cu-N-ZrTiO4) as a photocatalyst for the degradation of methylene blue (MB) have been conducted. The main purpose of this research was to investigate the co-doping effec
Externí odkaz:
https://doaj.org/article/b78ac91676244052af84d66bb373b1c3
Publikováno v:
Indonesian Journal of Chemistry, Vol 22, Iss 3, Pp 692-702 (2022)
Iron (Fe) and nitrogen (N) were introduced as dopants into zirconium titanate (ZrTiO4) in order to study the codoping effects of nitrogen on iron-doped zirconium titanate (Fe,N-codoped ZrTiO4) composite. Titanium tetraisopropoxide (TTIP), zirconia (Z
Externí odkaz:
https://doaj.org/article/c91df30dda7440edbbc4e606813dd2c7
Autor:
Sri Setyaningsih, Maisari Utami, Akhmad Syoufian, Eddy Heraldy, Nasih Widya Yuwono, Karna Wijaya
Publikováno v:
Indonesian Journal of Chemistry, Vol 22, Iss 1, Pp 17-34 (2022)
Biodiesel is a renewable energy source that can be produced through esterification as well as transesterification reactions. This work presents a series of zirconia catalysts synthesized by hydrothermal method on various concentrations in acidic (H2S
Externí odkaz:
https://doaj.org/article/ce0ad7ce5ded41bcb77d2797dca45fae
Autor:
Muhamad Imam Muslim, Rian Kurniawan, Mokhammad Fajar Pradipta, Wega Trisunaryanti, Akhmad Syoufian
Publikováno v:
Indonesian Journal of Chemistry, Vol 21, Iss 4, Pp 882-890 (2021)
The effects of dopant content and calcination temperature on Mn-doped TiO2-ZrO2 structure and properties were successfully investigated. Composite of Mn-doped titania-zirconia was synthesized by sol-gel method. Titanium(IV) isopropoxide was used as t
Externí odkaz:
https://doaj.org/article/2b49ae6360a54e7cb2c80e81d590a21c
Autor:
Emilya Faridatul Sulaikhah, Rian Kurniawan, Mokhammad Fajar Pradipta, Wega Trisunaryanti, Akhmad Syoufian
Publikováno v:
Indonesian Journal of Chemistry, Vol 20, Iss 4, Pp 911-918 (2020)
Synthesis of cobalt-doped zirconium titanate (Co-doped ZrTiO4) as a potential photocatalyst with visible-light-response had been conducted. Materials used in this research were titanium tetraisopropoxide (TTIP) as a precursor of TiO2, ZrO2 as another
Externí odkaz:
https://doaj.org/article/33e93712d7b94cdfa29d070f0d8ddb75
Publikováno v:
Indonesian Journal of Chemistry, Vol 20, Iss 6, Pp 1374-1381 (2020)
The preparation and characterization of zirconia-supported titania with a zinc dopant had been studied. Zinc-doped titania was grown on the surface of zirconia by the sol-gel method. Various zinc contents and calcination temperatures were applied to
Externí odkaz:
https://doaj.org/article/770ef432b3574abcbf4f8a094fa68136