JRSKT - Jurnal Riset Sains dan Kimia Terapan Volume 10 Issue 2 comprises six articles written by authors from Universitas Negeri Jakarta, Badan Riset dan Inovasi Nasional, Universitas Dhyana Pura Badung, Pusat Sains dan Teknologi Bahan Maju (PSTBM), Universitas Lampung and Universitas Islam Negeri Mataram. We are appreciative of the authors' contributions. We also appreciate the expertise of the reviewers, who are crucial to this issue.