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All Journal Science and Technology Indonesia Bulletin of Chemical Reaction Engineering & Catalysis
Sagadevan, Suresh
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Materials Science & Nanotechnology Physics

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Journal : Science and Technology Indonesia

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Clitoria ternatea Flower Extract Mediated Synthesis of Ni-Doped Hydroxyapatite as Photocatalyst, Antibacterial, and Drug Delivery Agent for Anticancer Drug Fatimah, Is; Nurlaela, Nunung; Fauziyyah, Anas Zahra; Sagadevan, Suresh; Hidayat, Habibi; Haneef, Mehru Nisha Muhamad; Daud, Muhammad Fauzi; Kamari, Azlan; Oh, Won-Chun
Science and Technology Indonesia Vol. 10 No. 2 (2025): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.2.360-373

Abstract

In the present study, green synthesis of nickel-doped hydroxyapatite using Clitoria ternatea flower extract, and activity testing as photocatalyst, antibacterial agent and drug delivery agent were performed. Synthesis was conducted by hydrothermal treatment of co-precipitated precursors previously mediated with the extract. As drug delivery agent, immobilization of 5-fluorouracil (5FU) onto the prepared sample was performed by spray-drying method. Physicochemical characterization techniques of X-ray diffraction, UV-Visible Diffuse Reflectance Spectrophotometry, transmission electron microscopy, Raman and Fourier-Transform Infra-red spectroscopy were performed to determine the structural and surface properties of material. Photocatalytic activity evaluation for tetracycline removal showed that material has capability to reduce concentration by photocatalytic degradation and photocatalytic oxidation. The degradation efficiency of material was 83.78%. The prepared material exhibited a significant activity against Staphylococcus aureus and Escherichia coli bacteria. The material also expressed the potency as a drug-delivery agent of 5-fluorouracil as shown by the reduced CT26 cell viability of more than 85% during 48 hours.
Research Trends in Green Synthesis of CeO2 Nanoparticles: A Bibliometric Review Prihatiningsih, Elisa; Sagadevan, Suresh; Nisha, Mehru; Fatimah, Is
Science and Technology Indonesia Vol. 11 No. 1 (2026): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.1.182-195

Abstract

This bibliometric review examines the trends in green synthesis of CeO2 nanoparticles (NPs) emphasizing significant contributions and emerging research applications. Through an analysis of keywords, co-authorship networks, countries, and affiliation metworks, findings highlight that green synthesis of nanoparticles, applications of CeO2 as antibacterial agent, catalyst, and photocatalysts are the most used keywords reflecting strong interests. By evaluating the citation metrics within last 20 years, it could be concluded that green synthesis of CeO2 still have position to fill the map on the use of nanoparticles for various applications, mainly in medicine and environmental engineering. Stronger collaborations to explore linkages for creating new route as greener and sustainable method as innovation are still required.
Evaluation of Photocatalytic and Catalytic Activity of Biochar/Nickel for Laboratory Wastewater Treatment Fatimah, Is; Solekah; Nurlaela, Nunung; Ahmad, Zeeshan; Rizky, Indah Tri; Kamari, Azlan; Sagadevan, Suresh; Doong, Ruey-an
Science and Technology Indonesia Vol. 11 No. 2 (2026): April
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2026.11.2.579-595

Abstract

In this investigation, an exploration on the use of low-cost effective methods for laboratory wastewater treatment using magnetic biochar has been conducted. Magnetic biochar derived from orange peel waste loaded with nickel nanoparticles (Biochar/Ni) was prepared by pyrolysis procedure of orange peel waste with nickel chloride as nickel precursor at 600 oC for 2 h. X-ray diffraction (XRD), scanning electron microscopy-energy dispersive x-ray (SEM-EDX), Raman spectroscopy, and vibrating sample magnetometer (VSM) were employed for identify the feature of Biochar/Ni. Photocatalytic, photocatalytic oxidation, and microwave-assisted catalytic peroxidation were the treatment procedures employed to evaluate the activity of Biochar/Ni. The results showed the dispersed nickel nanoparticles in the composite are photocatalytic system to produce radicals for decolorizing laboratory wastewater as proven by accelerated oxidation by the addition of H2O2 and S2O82- as oxidants, and inhibition by the addition of radicals and superoxide radical scavengers. In addition, microwave-irradiation intensified catalytic peroxidation with shorter time and higher decolorization efficiency. The greenness evaluation of the process using AGREE software addressed the microwave-assisted catalytic peroxidation as the most efficient procedure utilizing Biochar/Ni for being developed and implemented to organic contaminated wastewater.
Co-Authors Daud, Muhammad Fauzi Doong, Ruey-an Fauziyyah, Anas Zahra Habibi Hidayat, Habibi Haneef, Mehru Nisha Muhamad Is Fatimah Kamari, Azlan Nisha, Mehru Nurlaela, Nunung Oh, Won-Chun Prihatiningsih, Elisa Rizky, Indah Tri Sheikh Mohd Ghazali, Sheikh Ahmad Izaddin Solekah Wijayanti, Hiroko Kawaii Zeeshan Ahmad