Vol 5, No 1 (2022)

JUNE 2022

Table of Contents

Articles

Preliminary Study of Profenofos and Difenoconazole Pesticide Residue in Soil and Citrus Fruits from Citrus Farming in Serai Village Kintamani Bangli

I Wayan Muderawan, Universitas Pendidikan Ganesha, Indonesia
Luh Mitha Priyanka, Universitas Pendidikan Ganesha, Indonesia
I Nengah Suparta, Universitas Pendidikan Ganesha, Indonesia
10.21831/ijoce.v5i1.49347
PDF
1-8
Fatliquor Development from Hemp Oil to Produce High Quality Natural Finished Leather

Sarwat Jahan Mahboob, PCSIR, Leather Research Centre, D 102, SITE, South Avenue, Karachi, Pakistan, Pakistan
10.21831/ijoce.v5i1.51418
PDF
9-16
The Effect of the Hydrothermal Time and Temperature in the Synthesis to the Properties of Nitrogen-doped TiO2

Misbah Rijal Ulhaq, Universitas Negeri Yogyakarta, Indonesia
Cahyorini Kusumawardani, Universitas Negeri Yogyakarta, Indonesia
10.21831/ijoce.v5i1.51822
PDF
17-24
Preparation of Cobalt-Silica Dioxide (CoxSiO2) Catalyst through Impregnation Method

Isthifaul Mawaddah, Universitas Negeri Yogyakarta, Indonesia
M. Pranjoto Utomo, Universitas Negeri Yogyakarta, Indonesia
10.21831/ijoce.v5i1.51823
PDF
25-30
Methyl Orange Dye Removal through Adsorption using TiO2 modified Montmorillonite Granule

Dewi Yuliana, Universitas Negeri Yogyakarta, Indonesia
Erfan Priyambodo, Universitas Negeri Yogyakarta, Indonesia
10.21831/ijoce.v5i1.51824
PDF
31-36