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All Journal VALENSI Jurnal Ilmu Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Omni-Akuatika Indonesian Journal of Chemistry Molekul: Jurnal Ilmiah Kimia

Uyi Sulaeman

Department Of Chemistry Faculty Of Mathematics And Natural Sciences Universitas Jenderal Soedirman Jl. Dr. Soeparno No. 61 Karangwangkal Purwokerto Central Java Indonesia 53123

Author-ID : 2589852

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science

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Facile Synthesis of Ag3PO4 Photocatalyst with Varied Ammonia Concentration and Its Photocatalytic Activities For Dye Removal Febiyanto Febiyanto; Agus Soleh; Muhammad Sofi Khoerul Amal; Mohammad Afif; Sukma Sewiji; Anung Riapanitra; Uyi Sulaeman
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 1 Year 2019 (April 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

The highly active photocatalyst of Ag3PO4 could be synthesized under ammonia solution using the facile co-precipitation method with the starting material of AgNO3 and Na2HPO4.12H2O. The variation of ammonia concentration was designed at 0.00, 0.05, 0.15, and 0.30 M. The products were characterized using X-ray diffraction, UV-diffuse reflectance spectroscopy, and scanning electron microscopy. The photocatalytic activities were evaluated using the Rhodamine B degradation under blue light irradiation. The effect of calcination, pH condition, and visible light source irradiation was carried out in the experiment. The highest photocatalytic activity was found in the sample prepared using the addition of ammonia solution at the concentration of 0.05 M. This photocatalytic activity was 4.13 times higher compared to the Ag3PO4 prepared without the ammonia. The effective condition of photocatalytic activity was achieved at the sample prepared without calcination, degradation at pH of 7 and under blue light irradiation.

Tuning the Morphology of Ag3PO4 Photocatalysts with an Elevated Concentration of KH2PO4 Khusnul Afifah; Roy Andreas; Dadan Hermawan; Uyi Sulaeman
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

Tuning the morphology of Ag3PO4 photocatalysts with an elevated concentration of KH2PO4 have been successfully conducted. This photocatalyst was prepared by starting material of AgNO3 and KH2PO4. The KH2PO4 aqueous solution with five concentrations of 0.10 M, 0.15 M, 0.30 M, 0.45 M, and 0.60 M was reacted with AgNO3 aqueous solution. The products were characterized using X-ray Diffraction (XRD), UV-Vis Diffuse Reflectance Spectroscopy (DRS), and Scanning Electron Microscopy (SEM). The concentration of KH2PO4 significantly affected the morphology, size, and crystallinity of catalyst. The morphology of Ag3PO4 may be tuned with the synthesis using an elevated concentration of KH2PO4. The sample with the synthesis using 0.15 M of KH2PO4 exhibited the excellent photocatalytic activity. The high photocatalytic activity was caused by the small size of mixed morphology of sphere and tetrahedron, high crystallinity and defect sites.

Synthesis of Ag3PO4 using Hydrophylic Polymer and Their Photocatalytic Activities under Visible Light Irradiation Uyi Sulaeman; Bin Liu; Shu Yin; Tsugio Sato
Bulletin of Chemical Reaction Engineering & Catalysis 2017: BCREC Volume 12 Issue 2 Year 2017 (August 2017)
Publisher : Department of Chemical Engineering - Diponegoro University

The highly active Ag3PO4 photocatalysts were successfully synthesized using the hydrophylic polymer of PVA (polyvinyl alcohol), PEG (polyethylene glycol) and PVP (polyvinyl pyrrolidone). The products were characterized using X-ray diffraction (XRD), Diffuse reflection spectroscopy (DRS), Field emission scanning electron microscope (FE-SEM), Brunauer–Emmett–Teller (BET) specific surface area, and X-ray photoelectron spectroscopy (XPS). Photocatalytic activities were evaluated using decomposition of Rhodamine B (RhB) under visible light irradiation. The results showed that the PVA, PEG, and PVP increased the specific surface area and enhanced the photocatalytic activity of Ag3PO4. The highest photocatalytic activity could be observed in Ag3PO4 synthesized with PVA, mainly due to an increase in electron excitation induced by PVA chemically adsorbed on the surface.

Co-Authors Agus Soleh Andri Kurniawan Anung Riapanitra Bin Liu Dadan Hermawan Febiyanto Febiyanto Febiyanto Febiyanto Hartiwi Diastuti Khusnul Afifah Mohammad Afif Muhammad Sofi Khoerul Amal Oedjijono Oedjijono Oedjijono Oedjijono Oedjijono Oedjijono Roy Andreas Roy Andreas Roy Andreas Ryan Aditya Mahendra Senny Widyaningsih Shu Yin Shu Yin Sity Khalidah Zia Suhendar Suhendar Sukma Sewiji Tamad Tamad Tamad Tamad Tamad Tamad Tien Setyaningtyas Tien Setyaningtyas Tsugio Sato Undri Rastuti

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Journal : Bulletin of Chemical Reaction Engineering