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All Journal International Journal of Evaluation and Research in Education (IJERE) Cakrawala Pendidikan Jurnal Kependidikan: Penelitian Inovasi Pembelajaran JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Penelitian Saintek Jurnal Penelitian Humaniora Jurnal Pendidikan Kimia Indonesia Jurnal Sains Dasar Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) Alchemy Jurnal Penelitian Kimia Jurnal Inovasi Pendidikan IPA Jurnal Tadris Kimiya Jurnal Penelitian Pendidikan IPA (JPPIPA) JOURNAL OF KOMODO SCIENCE EDUCATION Psychology, Evaluation, and Technology in Educational Research Molekul: Jurnal Ilmiah Kimia Jurnal Pendidikan dan Kebudayaan Missio Indonesian Journal of Chemistry and Environment Jurnal Elemen Kimia Jurnal Riset Pembelajaran Kimia
A.K Prodjosantoso A.K Prodjosantoso
Departement Of Chemistry Education, Postgraduate Program, Yogyakarta State University, Jl. Colombo No.1, Karang Malang, Yogyakarta, 55281
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Social Sciences

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Synthesis of Natural Zeolite/ZnO and its photodegradation activity on congo red M. Pranjoto Utomo; A. K. Prodjosantoso; Kun Sri Budiasih; Isti Yunita; Tisia Miftakhul Triani; Vera Dwi Nur Rahmawati
Indonesian Journal of Chemistry and Environment Vol 6, No 2 (2023): DECEMBER 2023
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v6i2.68334

Abstract

Dyes are the most common compound used in the textile industry. Dyes consisted of azo compound that is difficult to be degraded. Undegradated azo compound, such as congo red, danger for the environment. An alternative effort to handle congo red waste must be conducted. Natural zeolite/ZnO is a material that can be used to degrade congo red to be simpler compound. Based on the analysis, the characters of natural zeolite/ZnO are hexagonal wurtzite structure, particle size 24.264 nm, band gap energy 2.96 eV. The highest degradation percentage in photodegradation activity of natural zeolite/ZnO on congo red is 99.41%.
Validity of a Chemistry Learning Module Based on Socio-Scientific Issues Utami, Restu; Prodjosantoso, Anti Kolonial
Jurnal Pendidikan Kimia Indonesia Vol. 7 No. 2 (2023)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpki.v7i2.72650

Abstract

This paper aims to determine the validity and eligibility percentage of socio-scientific issues-based chemistry learning module by material and media experts. The method used in this research was Research and Development (R&D) using the 4D model by  Thiagarajan. The module was validated by two material experts and two media experts. The instrument used to obtain the validation data was an expert assessment questionnaire. The data were analyzed using quantitative descriptive analysis techniques. The validation value by material experts was 57.5, and its eligibility can be categorized as ’very good’. The percentage of eligibility from the material expert assessment obtained was 89.84%. The validation value by media experts was 61.50, and its eligibility can be categorized as ’very good’. The percentage of eligibility from the media expert assessment obtained was 96.09%.
Photodegradation of rhodamine B over natural zeolite/ZnO Utomo, M. Pranjoto; Prodjosantoso, Anti Kolonial; Budiasih, Kun Sri; Yunita, Isti; Triani, Tisia Miftakhul; Rahmawati, Vera Dwi Nur
Indonesian Journal of Chemistry and Environment Vol. 7 No. 1 (2024): JUNE 2024
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ijoce.v7i1.74067

Abstract

Rhodamine B is dye compound commonly used in the textile industry that consisted of azo compound. Azo compound generally difficult to be degraded. Undegradated azo compound in rhodamine B make it danger for the environment. An effective effort to handle rhodamine B waste must be conducted. Natural zeolite/ZnO is a material that can be used to degrade rhodamine B to be simpler compound based on photodegradation procces. Based on the analysis, the particle size of natural zeolite/ZnO is 16.92709 nm and the band gap energy 2.92 eV. The highest degradation percentage of rhodamine B over natural zeolite/ZnO under UV irradiation is 99.54%.
Co-Authors Agus Santoso Anggra Prasetya Cahya Antuni Wiyarsi Apolonia H. Ramda AristantoWahyuWibowo, AristantoWahyuWibowo, Bambang Subali Cahyorini K. Cahyorini K. Cahyorini Kusumawardani Charis Dwi Ismail Dwi Dara Septi Putriani Endang Widjajanti Laksono FX Endang Widjayanti LFX Eti Febriani Fajar Naqsyahbandi Febrian Solikhin Fitri Lestari Giyas Idayu Himawan Putranta Isti Yunita Jumadi Jumadi Jundu, Ricardus Jundu, Ricardus Khairunnisa Khairunnisa Kristiyan Handoyo Sugiyarto Kun Sri Budiasih Lusila Andriani Purwastuti M. Pranjoto Utomo Mufida Awalia Putri Nurhidayatullah Nurhidayatullah Nuryuliana Nuryuliana Purdiana Susilowati Puspitasari Puspitasari Putri, Mufida Awalia Rahmawati, Vera Dwi Nur Ramda, Apolonia Hendrice Regina Tutik Padmaningrum Restu Utami, Restu Retno Puspitorini Ricardus Jundu Ricardus Jundu Rifki Nomizar Khairani Rini Wulandari Shinta Ambarwati Silfanus Jelatu Sukma Wahyu Wijayanti Tisia Miftakhul Triani Triani, Tisia Miftakhul Vera Dwi Nur Rahmawati Yunita, Isti Yuzzaini Dwi Kurniawati Zuhdan Kun Prasetyo