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Hikmah, Utiya, Yanti, Diah Risma, Axala, David Lee Giant, Hastuti, Erna ORCID: https://orcid.org/0000-0002-2521-9258 and Prasetyo, Anton ORCID: https://orcid.org/0000-0003-1575-8634 (2024) SYNTHESIS OF MATERIAL COMPOSITE rGO-TIO2 FROM COCONUT SHELLS BY SOL-GEL METHODS AS PHOTOCATALYST. Indonesian Journal of Applied Physics, 14 (1). pp. 70-78. ISSN 2089-0133

Hastuti, Erna ORCID: https://orcid.org/0000-0002-2521-9258, Hikmah, Utiya, Mutiara, Z. and Kurniati, T. (2024) Nitrogen-doped carbon dots derived from green algae and ammonia as photocatalyst material. Jurnal Sains Materi. ISSN 411-1098 (print), 2614-087X (online)

Hastuti, Erna ORCID: https://orcid.org/0000-0002-2521-9258, Salsadilla, C, Sari, Y and Hikmah, Utiya (2024) The hydrothermal effect of time and temperature on the synthesis of carbon dots (CDs) from chicken feathers. Presented at ICGT.

Erna Hastuti dan Utiya Hikmah (2023) Pengembangan metode pembuatan Carbon Dots (CDs) dari alga hijau dan bulu ayam (sertifikat hak cipta). 000558789.

Ariska, Lambang Putri Ayu, Sahlan, Mohammad Agus and Hikmah, Utiya (2023) Analisis sifat mekanis komposit matriks polyester dengan penguat cangkang kerang hijau. Jurnal Fisika, 13 (1). pp. 20-28. ISSN 2088-1509

Hikmah, Utiya, Laila, Alfu Nur, Axala, David Lee Giant, Hastuti, Erna, Aini, Nur and Prasetyo, Anton (2023) In-Situ sol-gel method of TiO2-reduced graphene oxide as photocatalyst. Presented at The 12th International Conference on Green Technology (ICGT 2022), 26-27 Oct 2022, Malang, Indonesia.

Rizki, Irvan Wahyubil, Sari, Adhea Yunita and Hikmah, Utiya (2023) Analisis sifat mekanik list gypsum berbasis serat rami. JOP (Journal Online of Physiscs), 8 (2). pp. 56-60. ISSN 2502-2016

Putri, N.A., Hikmah, Utiya and Prasetyo, Anton ORCID: https://orcid.org/0000-0003-1575-8634 (2023) Green sintesis oksida grafena tereduksi dari arang tempurung kelapa dan kayu dengan menggunakan reduktor ramah lingkungan asam l-askorbat. Jurnal Kimia (Journal of Chemistry), 17 (1). pp. 82-88. ISSN 25992740

Erna Hastuti dan Utiya Hikmah (2023) Pemanfaatan limbah bulu ayam dalam pembuatan komposit SnO2-GO/rGO sebagai elektroda pada sel surya tersensitisasi pewarna (DSSC) (sertifikat hak cipta). 000438218.

Hastuti, Erna and Hikmah, Utiya (2023) Pengembangan metode pembuatan Carbon Dots (CDs) dari limbah biomassa sebagai material fotokatalis. Research Report. Universitas Islam Negeri Maulana Malik Ibrahim Malang, Malang. (Unpublished)

Naziha, Berliana Maulani, Nurmakhmuda, Putri Ayu and Hikmah, Utiya (2022) Analysis of tensile strength of jute and coconut coir reinforced polymer matrix composite. Journal of Applied Science and Advanced Technology, 5 (2). pp. 1-6. ISSN 2622-6553

Hastuti, Erna ORCID: https://orcid.org/0000-0002-2521-9258 and Hikmah, Utiya (2022) Pemanfaatan limbah bulu ayam dalam pembuatan komposit SnO2-GO/rGO sebagai elektroda pada Sel Surya Tersensitisasi Pewarna (DSSC). Research Report. Universitas Islam Negeri Maulana Malik Ibrahim Malang, Malang. (Unpublished)

Setiawan, Bramianto, Iasha, Vina and Hikmah, Utiya (2020) Lithium-sulfur battery: the review of cathode composite fabrication method. International Journal of Scientific & Technology Research, 9 (06). pp. 737-741. ISSN 2277-8616

Yanti, D.R., Hikmah, Utiya, Prasetyo, Anton and Hastuti, Erna (2020) The effect of microwave irradiation on reduced graphene oxide from coconut shells. Presented at The 10th International Conference on Green Technology (ICGT) "Empowering the Fourth Industrial Revolution through Green Science and Technology", 2-3 October 2019, Malang, Indonesia.

Hikmah, Utiya, Ubaidillah, R N and Ariska, L P A Preliminary study of exfoliated graphite (EG) produced by electrochemical exfoliation and EG- TiO composite. Research Report. Earth and Environmental Science.

Hikmah, Utiya, Ubaidillah, R N and Ariska, Lambang Putri Ayu Preliminary study of exfoliated graphite (EG) produced by electrochemical exfoliation and EG-TiO2 composite. Presented at 13th International Conference of Green Technology (ICGT 2023).