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All Journal Bulletin of Chemical Reaction Engineering & Catalysis Indonesian Journal of Chemistry Jurnal Gema Ngabdi Bulletin of Chemical Reaction Engineering & Catalysis
Muhammad Said
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Universitas Sriwijaya, Jalan Palembang-Prabumulih, Indralaya Research Centre Of Advanced Material And Nanocomposite, Faculty Of Mathematics And Natural Sciences, Universitas Sriwij
Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Social Sciences

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Pelatihan Pembuatan Hand Sanitizer Cair dari Ekstrak Kulit Jeruk Nipis di Kawasan Wisata Desa Burai Poedji Loekitowati Hariani; Fatma Fatma; Muhammad Said; Risfidian Mohadi; Salni Salni
Jurnal Gema Ngabdi Vol. 4 No. 1 (2022): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v4i1.225

Abstract

Burai village is located in Tanjung Batu sub-district, Ogan Ilir district. Burai Village is a tourism mainstay village in Ogan Ilir district. This village is known as the colorful village. As an ecotourism destination, water tourism and fishing programs have been developed, as well as environmentally friendly fish farming through organic feed. Other tourism potentials, such as the existence of traditional Bari houses that are more than 200 years old, and songket crafts. As patients with the COVID-19 virus have decreased, the number of tourists visiting Burai village has also increased. Health protocols are still needed, one of which is the use of hand sanitizer. This community service activity is to provide training on making liquid hand sanitizer from lime peel extract with the target audience being the Burai village community, especially tourism service providers. Lime plant is one of the plants cultivated by the people of Burai village. Orange peel extract contains essential oils that function to inhibit the growth of bacteria. In addition, orange peel extract has a fresh aroma. Activities are carried out by giving lectures, training on making hand sanitizers and packaging them. With this activity, it is hoped that the community will be able to provide hand sanitizers for both their own needs and tourists. The results of the activity showed high community participation in activities, more than 75% of the target audience liked the aroma of lime peel extract hand sanitizer.
Preparation of NiFe2O4 Nanoparticles by Solution Combustion Method as Photocatalyst of Congo red Poedji Loekitowati Hariani; Muhammad Said; Addy Rachmat; Fahma Riyanti; Handayani Citra Pratiwi; Widya Twiny Rizki
Bulletin of Chemical Reaction Engineering & Catalysis 2021: BCREC Volume 16 Issue 3 Year 2021 (September 2021)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16.3.10848.481-490

Abstract

NiFe2O4 nanoparticles had been successfully synthesized by solution combustion method using urea fuel (organic precursor). The synthesized NiFe2O4 were characterized by X-ray diffraction (XRD), Scanning electron microscopy-Electron Dispersive X-ray Spectroscopy (SEM-EDs), Transmission Electron Microscopy (TEM), Fourier Transform Infra-Red (FTIR), Vibrating Sample Magnetometer (VSM), UV-Vis Diffuse Reflectance Spectroscopy (UV-Vis DRS), and Point of Zero Charge (pHpzc). NiFe2O4 nanoparticles irradiated with visible light were employed to degrade Congo red dye with the following variable: solution pH (3–8), H2O2 concentration (0.5–3 mM), and Congo red concentration (100–600 mg/L). XRD analysis results showed that the NiFe2O4 nanoparticles had a cubic spinel structure. The particle sizes are in the range of 10–40 nm. The magnetic properties of NiFe2O4 nanoparticles determined using VSM showed a magnetization saturation value of 47.32 emu/g. UV-Vis DRS analysis indicated that NiFe2O4 nanoparticles had an optical band gap of 1.97 eV. The success of synthesis was also proven by the EDS analysis results, which showed that the synthesized NiFe2O4 nanoparticles composed of Ni, Fe, and O elements. The removal efficiency of Congo red dye was 96.80% at the following optimum conditions: solution pH of 5.0, H2O2 concentration of 2 mM, Congo red dye concentration of 100 mg/L, and contact time of 60 min. The study of the photodegradation kinetics follows a pseudo-first order reaction with a rate constant value of 0.0853 min−1. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Removal of Iron(II) Using Intercalated Ca/Al Layered Double Hydroxides with [α-SiW12O40]4- Tarmizi Taher; Mikha Meilinda Christina; Muhammad Said; Nurlisa Hidayati; Ferlinahayati Ferlinahayati; Aldes Lesbani
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019)
Publisher : Department of Chemical Engineering - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (567.027 KB) | DOI: 10.9767/bcrec.14.2.2880.260-267

Abstract

Ca/Al layered double hydroxide (LDH) was successfully synthesized by co-precipitation method at pH 11 under room temperature condition then followed by calcination at 800 oC. The synthesized Ca/Al LDH was further intercalated with Keggin ion [α-SiW12O40]4- in order to prepare the intercalated form of Ca/Al LDH. The synthesized materials were characterized by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) and used as an adsorbent for iron(II) removal from the aqueous medium. The adsorption performance was investigated by studying the kinetics and thermodynamic properties of the adsorption process. The results showed that pristine Ca/Al LDH exhibited diffraction peak at 2θ about 20o which corresponds to the layer structure of the LDH material. For the intercalated Ca/Al LDH, the diffraction observed at 2θ around 30-40o indicated that the [α-SiW12O40]4- was successfully intercalated into the interlayer space of Ca/Al LDH. Furthermore, the intercalated Ca/Al LDH showed higher adsorption capacity toward iron(II) than the pristine form of Ca/Al LDH. 
Adsorption of Cadmium(II) Using Ca/Al Layered Double Hydroxides Intercalated with Keggin Ion Tarmizi Taher; Yunita Irianty; Risfidian Mohadi; Muhammad Said; Roy Andreas; Aldes Lesbani
Indonesian Journal of Chemistry Vol 19, No 4 (2019)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (375.644 KB) | DOI: 10.22146/ijc.36447

Abstract

Ca/Al layered double hydroxides (Ca/Al LDH) was synthesized using co-precipitation method following calcination at 800 °C and was intercalated with Keggin ion [α-SiW12O40]4– to form intercalated Ca/Al LDH. Materials were characterized using XRD and FTIR spectrophotometer. Furthermore, materials were used as an adsorbent of cadmium(II) from solution. The results showed that layer material was formed completely after calcination which was indicated at diffraction 20° due to loss of water in the interlayer space. Ca/Al LDH after calcination was intercalated with [α-SiW12O40]4– ion and interlayer distance was increased from 4.25 to 4.41 Å showed that intercalation process was successfully conducted. Adsorption of cadmium(II) using Ca/Al LDH was conducted at pH 9 and intercalated Ca/Al LDH at pH 8 showed that intercalated material has slightly faster than Ca/Al LDH without intercalation probably due to slightly increasing interlayer distance of Ca/Al LDH after intercalation. The adsorption capacity of intercalated Ca/Al LDH was higher than Ca/Al LDH without intercalation at the temperature range of 30–50 °C.
Removal of Iron(II) Using Intercalated Ca/Al Layered Double Hydroxides with [α-SiW12O40]4- Tarmizi Taher; Mikha Meilinda Christina; Muhammad Said; Nurlisa Hidayati; Ferlinahayati Ferlinahayati; Aldes Lesbani
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 2 Year 2019 (August 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.2.2880.260-267

Abstract

Ca/Al layered double hydroxide (LDH) was successfully synthesized by co-precipitation method at pH 11 under room temperature condition then followed by calcination at 800 oC. The synthesized Ca/Al LDH was further intercalated with Keggin ion [α-SiW12O40]4- in order to prepare the intercalated form of Ca/Al LDH. The synthesized materials were characterized by X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) and used as an adsorbent for iron(II) removal from the aqueous medium. The adsorption performance was investigated by studying the kinetics and thermodynamic properties of the adsorption process. The results showed that pristine Ca/Al LDH exhibited diffraction peak at 2θ about 20o which corresponds to the layer structure of the LDH material. For the intercalated Ca/Al LDH, the diffraction observed at 2θ around 30-40o indicated that the [α-SiW12O40]4- was successfully intercalated into the interlayer space of Ca/Al LDH. Furthermore, the intercalated Ca/Al LDH showed higher adsorption capacity toward iron(II) than the pristine form of Ca/Al LDH. 
Co-Authors Addy Rachmat Aldes Lesbani Fahma Riyanti Fatma Ferlinahayati Ferlinahayati Handayani Citra Pratiwi Mikha Meilinda Christina Nurlisa Hidayati Poedji Loekitowati Hariani Risfidian Mohadi Risfidian Mohadi Rizki, Widya Twiny Roy Andreas Salni Salni Tarmizi Taher Yunita Irianty