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All Journal POSITRON Jurnal Sains dan Teknologi Jurnal Zeolit Indonesia Biopropal Industri Jurnal Kimia Riset Chimica et Natura Acta Indonesian Journal of Pure and Applied Chemistry Jurnal Laut Khatulistiwa AR-RAZI Jurnal Ilmiah GERVASI: Jurnal Pengabdian kepada Masyarakat Abdi Dosen : Jurnal Pengabdian Pada Masyarakat Acta Chimica Asiana Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Jurnal Abdimas ADPI Sains dan Teknologi Jurnal Teknologi Lingkungan Lahan Basah Jurnal Transformasi Administrasi J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat)
Nelly Wahyuni
Universitas Tanjungpura
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences Other

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Journal : Jurnal Kimia Riset

 1 
DEGRADATION OF TETRACYCLINE BY FLOATING PHOTOCATALYST TiO2/Ni-COCONUT FIBER Putri, Lavena Imelda; Agustiawan, Deri; Sugandi, Didiek; Arfida, Khaizurani; Mardhatilla; Wahyuni, Nelly
Jurnal Kimia Riset Vol. 8 No. 2 (2023): December
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v8i2.50848

Abstract

The photocatalyst process involves light (photons) as an energy source and catalysts such as TiO2 to accelerate the reaction. Efforts are made to reduce the band gap energy of TiO2 by shifting the absorption towards visible light using metal cation doping, such as Ni2+, and they can float on the surface with coconut fiber. XRD characteristics with TiO2 diffractogram experienced a 2θ shift as an indication that Ni has entered the TiO2 structure and seen some peaks decreased in intensity after being embedded with coconut fiber as an indication that TiO2/Ni has successfully attached to the fiber. The band gap energy on TiO2 is 3.21 eV with a wavelength of 386.5 nm in UV light. TiO2/Ni-coconut fiber experienced a shift in band gap energy to 3.09 eV with a wavelength of 400.9 nm, which is in visible light. This indicates that Ni has successfully entered the TiO2 structure. The TiO2/Ni catalyst embraced with coconut fiber has a higher degradation activity than the catalyst without an embrainer, with a percent degradation of 28.66% for 120 minutes of irradiation. This is influenced by the amount of light that can be absorbed during the photocatalysis process.  
DEGRADATION OF HUMIC ACID BY FLOATING PHOTOCATALYST TiO2/Cu-ARECA FIBER Sugandi, Didiek; Agustiawan, Deri; Wijayanto, Ericco; Marpaung, Maria Oktavia Putri; Ayyash, Muhammad Yahya; Wahyuni, Nelly
Jurnal Kimia Riset Vol. 9 No. 1 (2024): June
Publisher : Universitas Airlangga, Campus C Mulyorejo, Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jkr.v9i1.50850

Abstract

 The photocatalyst method is effective in degrading humic acid into O2 and H2 compoundsthat are more environmentally friendly. The photocatalysis process involves light andsemiconductors such as TiO2 to accelerate the reaction rate. Therefore, modification of TiO2is needed to shift light absorption to visible light by using Cu2+ doping and areca fiber. XRDcharacterization shows that Merck's TiO2 has shifted at 2θ, indicating that Cu has enteredthe TiO2 structure, and several peaks have reduced in intensity after being embedded withareca fiber, indicating that TiO2/Cu has successfully attached to areca fiber. FTIR resultsshow that TiO2/Cu has been attached to the areca fiber, which is marked by shifting andweakening the intensity of the Ti-O-Cu wave number absorption. The test results show thatTiO2/Cu embedded in areca fiber had higher degradation activity than TiO2/Cu withoutembedded, with a percent degradation of 54% for 180 minutes of irradiation. These resultsprove that TiO2/Cu floated to the surface of the solution can optimize irradiation so that itis effective in the degradation process.
Co-Authors Agustiawan, Deri Ajuk Sapar Amanda, Ferdian Rizki Andi Hairil Alimuddin Angelina, Dina Anis Shofiyani Aprilianti, Wirna Arfida, Khaizurani Ari Widiyantoro Ayyash, Muhammad Yahya Azhar, Annisa Sylvania berta juniarty antomy Dina Angelina Endah Sayekti Erma Maruni Febriyanti, Shafira Viana Gusrizal Gusrizal Hikmah, Miftachul Imelda H Silalahi Imelda H. S., Imelda H. Imelda Hotmarisi Silalahi Irwan Irwan Jamhir Islami Jumiati Jumiati Kiki Prio Utomo Krisnanti, Gendis Yayi Lia Destiarti M Agus Wibowo Mardhatilla Marpaung, Maria Oktavia Putri Mellisa Nurul Safitri Muhammad Pramulya, Muhammad Nurlina Nurlina Nurlina, Nurlina Panaya, Gabriela Yenti Landang Putri, Lavena Imelda Rahayu, Warsi Kurnia Ridho Brilliantoro Risa Nofiani Risa Nofiani Risya Sasri Rizky Al Ayyubi, Muhammad Rudiyansyah Rudiyansyah Rudiyansyah Rudiyansyah Rudiyansyah Rudiyansyah Sasa Widianti Simamora, Cico Jhon Karunia Sugandi, Didiek Sutarno Sutarno Syaifurrahman Syaifurrahman Thamrin Usman Thamrin Usman Titin Anita Zahara, Titin Anita Titin Anita Zaharah Utomo, Kiki Prio Vebriyanti, Lo Mei Ly Verry Andre Fabiani Wibowo, Muhamad Agus Wijayanto, Ericco Winda Rahmalia Yateman Arryanto Yossy Yossy Yudi, Yulius Yulistya Vidyaning Maulidya Zaharah, Titin Anita