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Aritonang, Anthoni Batahan
Department Of Chemistry, Tanjungpura University
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Journal : CHEESA: Chemical Engineering Research Articles

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Synthesis and Characterization of SCDs/TiO2 Composite Aritonang, Anthoni Batahan; Sapar, Ajuk; Sari, Heni Puspita; Ardiningsih, Puji; Adhitiyawarman, Adhitiyawarman
CHEESA: Chemical Engineering Research Articles Vol. 5 No. 2 (2022)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v5i2.13915.92-100

Abstract

Synthesis of sulphur-doped carbon nanodots immobilized on the TiO2 surface (SCDs/TiO2) composite was carried out using the sol-gel method with SCDs and titanium tetraisopropoxide (TTIP) as precursors. SCDs were prepared from citric acid monohydrate, urea, and sodium disulphite using the microwave technique. SCDs/TiO2 was then visually observed under UV 365 nm and characterized by UV-Vis diffuse reflectance spectrophotometry (UV-Vis/DRS), Photoluminescence (PL) spectroscopy, Fourier transform infrared (FT-IR), and X-ray diffraction (XRD). The SCDs/TiO2 composite product had a brown solid with a green luminescent under UV light. Furthermore, UV-Vis/DRS for variations in SCDs concentrations of 0.5%; 1.25%, and 2.5% showed Eg values of 2.33 eV, 2.14 eV, and 1.61 eV, respectively. The results showed that SCDs caused the maximum emission peak (λEm) to redshift and also affected the intensity of PL TiO2. There was also a shift in the absorption peak towards the visible light region. Based on the results, the 0.5% SCDs/TiO2 was the optimum concentration with the lowest intensity as an indication of separation of the (e-) and (h+) charge pairs, which greatly enhanced the photocatalytic efficiency.
Co-Authors Adhitiyawarman, Adhitiyawarman Ajuk Sapar Andi Hairil Alimuddin Arfan Sindhu Tistomo Arie Antasari Kushadiwijayanto Ashari, Asri Mulya Asma, Al Asmawati Asmawati Aufa, Raisa Rasyada Ayu Hindayani Desi Listiani Eka Mardika Handayani Eka Pratiwi Endah Sayekti Ferdian, Rasyid Fransiska M Wenisda Harlia Harlia Harlia, H. Harry Budiman Helena, Shifa Ikha Safitri Ikha Safitri Imelda Hotmarisi Silalahi Jayuska, Afghani Jihandini, Syahwa Jumlia Kartika, Novi Kukuh Hernowo Kurniawan Alam Muza’ki Limbong, Winny Sunfriska M. Agus Wibowo Margareta Caroline Harunrasjid Maulida, Alifiani Maura, Gabriella Mega S Sofiana Mega Sari Juane Sofiana Melati Azizka Fajria Millenia Millenia Muhammad Agus Wibowo Muhammad Rizky Mulyana Munadi Munadi Nazarudin Nazarudin Nazarudin Nora Idiawati Nurdiansyah, Sy. Irwan Oman Zuas Oman Zuas Oman Zuas Prayitno, Dwi Imam Puji Ardiningsih Puji Ardiningsih Puji Ardiningsih Puji Ardiningsih Putri, Desy Harlina Putry Parwaty Resti Fartiwi Risko, Risko Rita Kurnia Apindiati Rita Kurnia Apindiati Robi, Robi Rozaqina, Nuri Rudiyansyah Rudiyansyah SALPRIMA YUDHA S Sari, Atna Sari, Heni Puspita Sitohang, Mikael Sitopu, Selli Dosriani Suparnawati Suparnawati Suparnawati Suparnawati Suparnawati, Suparnawati Suripto D Yuwono Syarif Irwan Nurdiansyah Uci Pradina Umi K Yaumidin Warsidah Warsidah Warsidah Warsidah Warsidah Warsidah Warsidah Warsidah Warsidah, Warsidah Wenisda, Fransiska Monita Winda Rahmalia Yaumidin, Umi K Yenny Lisbeth Siahaan Yuwono, Suripto D Zaharah, Titin Anita