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Effectiveness of Montmorillonite-ZnO as Photocatalyst for Adsorption and Degradation of Methylene Blue Nur, Abdillah Mushawwir An; Iklima, Ilma Kanzu; Hidayat, Taupik; Dasna, I Wayan; Sumari, Sumari; Utomo, Yudhi
Indonesian Journal of Chemical Research Vol 13 No 3 (2026): Edition for January 2026
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2026.13-abd

Abstract

This study aims to synthesize, characterize, and evaluate the photocatalytic activity of a montmorillonite–ZnO (MMT/ZnO) composite for the degradation of methylene blue (MB) under ultraviolet (UV) and dark (non-UV) conditions. The composite was prepared by mixing synthetic montmorillonite derived from Indonesian soil with ZnO in ethanol, followed by calcination at 400 °C for 2 hours, and subsequently characterized using X-ray fluorescence (XRF). The degradation tests were performed using various composite masses (0.5–2.5 g) and compared with single ZnO and montmorillonite materials through visible spectrophotometry analysis. The results revealed that under UV irradiation, MMT/ZnO achieved the highest degradation efficiency of 98.37%, while under non-UV conditions, MB removal remained high at 88.39%, primarily driven by adsorption. These findings confirm a synergistic effect between the adsorption capacity of montmorillonite and the photocatalytic activity of ZnO, where adsorption dominated MB removal while photocatalysis contributed to enhancing overall degradation efficiency. The novelty of this study lies in the utilization of synthetic Indonesian montmorillonite as a ZnO support, which enhances photocatalytic efficiency while reducing production costs. This finding highlights the potential of MMT/ZnO composites as an environmentally friendly and cost-effective alternative for dye wastewater treatment in the textile industry.
Validitas Buku Model Pembelajaran Kolaboratif Berbasis Masalah Untuk Meningkatkan Kemampuan Berpikir Kreatif dan Metakognitif Mahasiswa Hidayah, Rusly; Fajaroh, Fauziatul; Parlan, Parlan; Dasna, I Wayan; Nendi, Ikhsan
Journal of Business Social and Technology Vol. 5 No. 2 (2024): Journal of Business, Social and Technology
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jbt.v4i2.163

Abstract

Berpikir kreatif dan metakognitif termasuk dalam ranah berpikir tingkat tinggi yang melibatkan kontrol aktif dalam proses kognitif untuk memecahkan suatu masalah. Berbagai upaya untuk meningkatkan penguasaan berpikir kreatif dan keterampilan metakognitif sangat diperlukan, salah satunya melalui penggunaan buku model pembelajaran kolaboratif berdasarkan masalah yang merangsang kemampuan berpikir kreatif dan metakognitif siswa. Riset ini menggunakan metode penelitian dan pengembangan (R&D) ini bertujuan untuk menguji validitas buku model pembelajaran kolaboratif berbasis masalah. Sedangkan pengumpulan data menggunakan metode angket. Pengembangan buku menggunakan model Plomp, sehingg penggunaan buku perlu divalidasi, dalam hal ini buku divalidasi oleh tiga orang ahli menggunakan V Aiken, hasil validasi menunjukkan validitas isi 0,919 oleh pakar, validitas konstruk 0,903 oleh pakar dengan kategori valid dan dapat digunakan untuk mengetahui peningkatan kemampuan berpikir kreatif dan metakognitif siswa. Disarankan kepada dosen untuk menerapkan model buku pembelajaran berbasis masalah kolaboratif dan menekankan berpikir kreatif dan keterampilan metakognitif dalam proses pembelajaran.
Co-Authors Adyatma Wicaksono Afrahamiryano Afrahamiryano Airiza Dian Ali Amirul Mu'minin Aman Santoso Anugerah Ricky Wijaya Anugrah Ricky Wijaya Arum Dwisetyo Arini Asmi Munadhiroh Astrid Kinantya Paramita Astrid Kinantya Paramita Aynin Mashfufah Baiq Asma Nufidaa Betty, Yohana Idamina Candra Utama Carera, Inova Putri Cholis Sa’dijah CHORERA, APRILIA Citra Ayu Dewi Cylindrica, Vrisca Bella Danar Danar Dayu Ardhiyatmita Nur Rahmawati Dewi Mariyam Dewi Mariyam Dhia Suprianti Dhia Suprianti Dhinarty Umi Rachmawaty Dwi Mei Susiyadi Eddy Sutadji Endang Budiasih Endang Purwaningsih Fajar Nugroho Fauzana Gazali Fauziatul Fajaroh Fitria Rizkiana Fitriana, Dewi Khajar Fourin Indhira Megapratiwi Frida Kristining Tyas Habiddin HASAN SUBEKTI Hayuni Retno Widarti Hikmatul Fitri Husni Wahyu Wijaya Iklima, Ilma Kanzu Ima Rosyida Inova Putri Carera Intan Diah Purwandari Islamiyah, Kafita Krisnatul Isma Yanti Vitarisma Sukirno Putri Ismail Efendi Istri Setyowati Jacky Anggara Nenohai Jakub Saddam Akbar Jayawarsa, A.A. Ketut Kafita Krisnatul Islamiyah Kristining Tyas, Frida Laksana, Dek Ngurah Laba Laksmana, Sutandyo Dwija Laksono Trisnantoro Lestari, Putri Dwi Limbong, Stella Afrilita Margaretha Bhrizda Permatasari Mariyam, Dewi Meyga Evi Ferama Sari Meyga Ferama Sari Mohammad Arfi Setiawan Moreira, Ilidio X. Ms, Allien Kallala Mu'minin, Ali Amirul Muhammad Hubbi Muhammad Muchson Munzil Munzil , Munzil Nafi Isbadrianingtyas Nanda Intan Maharani Nani Farida Nazriati Nazriati dkk. Nendi, Ikhsan Nur Hamid Nur, Abdillah Mushawwir An Nurbani Jusuf Nurkholis Nurkholis Nurkholis Nurkholis Oktavia Sulistina Parlan . Prastika, Frissa Rizkihati Purba, Leony Sanga Lamsari Purba, Leony Sanga Lamsari Purwandari, Intan Diah Puspitasari, Risky Priliani Putra, Faaza'izzahaq Setta Putra, Vahemas Aditya pamila Putri Qori Utami Putri, Isma Yati Vitarisma Sukirno Rachmawaty, Dhinarty Umi Rafli, Muhammad Rahmawati Rahmawati Ratna Ekawati Reza Mega Wahyuni Ridwan Joharmawan Risky Priliani Puspitasari Rosyida, Ima Rusly Hidayah Rusly Hidayah RUSLY HIDAYAH Sakina, Balik Sholikhatus Sari, Noor Asni Savitri, Linggar Agil Setiawan, Nur Candra Eka Setyowati, Istri Shirly Rizki Kusumaningrum Sitanggang, Indah Siti Marfuah, Siti Siti Nurul Hidayati SITI NURUL HIDAYATI Sri Rahayu Sri Rahayu SRI RAHAYU Sri Rahayu Sri Rahayuningsih Stéphane Golhen Stéphane Golhen Sugiarto Sugiarto Suhadi Ibnu Suharjo Suharjo Suharti Sukainil Ahzan Sukaton, Anggia Rose Sukirno Putri, Isma Yanti Vitarisma Sumari Sumari Supriyono Koes Handayanto Surjani Wonorahardjo Sutandyo Dwija Laksmana Sutarno Sutarno Sutarno Sutarno Sutrisno, Sutrisno Syamsul Hadi Tangi, Hironimus Taupik Hidayat, Taupik Tinenti, Yanti Rosinda Tyas, Frida Kristining Ubed Sonai Arrazi Ubed Sonai Fahruddin Arrozi Vrisca Bella Cylindrica Wahyuni, Reza Mega Wardati, Dahlia Widiyanti Widiyanti, Widiyanti Wijaya, Anugerah Ricky Wulandari, Agtri Yahmin Yahmin Yudhi Utomo Yulia Hidayati Yusran Khery Zahiro, Nilna Muna Zainal Abiddin Zelen Surya Minata