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Journal : Chemistry Indonesian Journal of Chemical Research

Biosintesis Nanopartikel Perak menggunakan Ekstrak Daun Ketapang, Modifikasi dengan Asam p-kumarat untuk Aplikasi Deteksi Melamin Rusnaenah, Andi; Zakir, Muhammad; Budi, Prastawa
Indonesian Journal of Chemical Research Vol 4 No 2 (2017): Edisi Bulan Januari (Edition For January)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2017.4-and

Abstract

Biosynthesis of silver nanoparticles (AgNPs) using ketapang leaf extract, modification with p-coumaric acid for detecting melamine has conducted. This research aimed to synthesize AgNPs via bio-reduction method using ketapang leaf extract followed by modification with p-coumaric acid (APK), and evaluating its application detecting melamine. The AgNPs were characterized through ultraviolet-visible absorption spectroscopy (UV-Vis) and X-ray diffraction (XRD). Observation suggested that an increase of incubation time had affected its surface Plasmon resonance trend. Further analysis of crystallite via XRD suggested that nanoparticle size at 43 nm estimated using Debye-Scherer, within the form of unit cells is cubic. The performance of product as melamine detector suggested that the AgNPs-APK had detected melamine in range of concentration from 0.1 to 1000 ppm.
Pengaruh Konsentrasi AgNO3 dan Suhu Sintesis terhadap Surface Plasmon Resonance (SPR) Nanopartikel Perak R, Irwan; Zakir, Muhammad; Budi, Prastawa
Indonesian Journal of Chemical Research Vol 4 No 1 (2016): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2016.4-irw

Abstract

The research aims to synthesis of silver nanoparticles (AgNPs) via bio-reduction method using mangosteen skin extract. The growth of AgNPs was characterized by ultraviolet-visible spectroscopy (UV-Vis). Based on Surface Plasmon resonance (SPR) data, observation suggested that an increase of initial AgNO3 concentration along with temperature, had affected its surface Plasmon resonance trend. SPR absorption indicates that the concentration of AgNO3 and the synthesis temperature was instrumental in the formation of silver nanoparticles.
Modifikasi Katalis CaO Untuk Produksi Biodiesel Dari Minyak Bekas Gani Rachim, St. Annisa; Raya, Indah; Zakir, Muhammad
Indonesian Journal of Chemical Research Vol 5 No 1 (2017): Edisi Bulan Juli (Edition For July)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2017.5-sit

Abstract

Research about modification of CaO catalyst to produce biodiesel has done. This research aims to know the effectiveness of CaO-ZnCl2 belong to ASTM D6751 to get a yield biodiesel. Modification of the CaO with ZnCl2 was conducted by impregnation method using methanol and n-hexane. For synthesis biodiesel, methanol is used as solvent and Waste Cooking Oil (WCO) as raw material. Ratio molar of WCO and methanol is 12:1 with 3% CaO-ZnCl2 added. This reaction is carried out at a temperature of 65oC. the biodiesel is characterized by Fourier Transform Infrared (FT-IR) to determine the presence of ester groups formed. The yield percentage of biodiesel produced is 77.94%. The characterization of biodiesel properties consist of acid number is 73.38 mg KOH/g, density is 0.9038 and water content is 0.0053%.
Sintesis Nanopartikel Perak dan Pengaruh Penambahan Asam p-Kumarat Untuk Aplikasi Deteksi Melamin R, Irwan; Zakir, Muhammad; Budi, Prastawa
Indonesian Journal of Chemical Research Vol 7 No 2 (2020): Edisi Bulan Januari (Edition for January)
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2020.7-irw

Abstract

Biosynthesis of silver nanoparticles (AgNPs) using mangosteen bark extract, modification and its application in detecting melamine has conducted. This research aimed to synthesize AgNPs via bio-reduction method using mangosteen bark extract followed by modification with p-coumaric acid (APK), and evaluating its application detecting melamine. The AgNPs were characterized through ultraviolet-visible absorption spectroscopy (UV-Vis), Fourier transform infrared absorption spectroscopy (FTIR), and X-ray diffraction (XRD). Observation suggested that an increase of incubation time had affected its surface Plasmon resonance trend. Observation of functional group by FTIR showed that carbonyl group (1707 cm-1) suspected from hydroxyl group (3414 cm-1). Further analysis of crystallite via XRD suggested that nanoparticle size at 30 nm estimated using Debye-Scherer, within the form of unit cells is cubic. Modified AgNPs showed an interaction between APK and particle surface through C=C alkenes (1598 cm-1) and aromatics (1672 cm-1), =C-H aromatic (3070 cm-1), aliphatic C-H (2501 cm-1), C-O (1107 cm-1) and C=O carboxylate (1774 cm-1). The performance of product as melamine detector suggested that the AgNPs-APK had detected melamine in range of concentration from 0.1 to 1000 ppm.
Adsorption of Bismarck Brown R Dyes Using Mesoporous Silica MCM-48 Zakir, Muhammad; Nuraeni, Andi; Taba, Paulina; Wahab, Abdul Wahid; Dali, Seniwati; Kasim, Syaharuddin; Nafie, Nursiah La
Indonesian Journal of Chemical Research Vol 10 No 2 (2022): Edition for September 2022
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2022.10-muh

Abstract

The adsorption of Bismarck Brown R (BBR) dye has been conducted using mesoporous silica (MCM-48). We synthesized the adsorbent using Ludox HS-40 as a silica source and surfactants of Cetyl Trimethylammonium Bromide (CTAB) and Triton X-100. The characterization of MCM-48 was performed using Fourier transform infrared (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). Various contact times were used to study the adsorption kinetics, and concentrations were used to study the adsorption isotherm. The optimum contact time of Bismarck Brown R dye was 120 minutes, and the adsorption followed a pseudo-second-order model. Based on the equation Langmuir and Freundlich adsorption isotherms, the adsorption capacity values of each are obtained 158.7301 mg g-1 and 4.3601 mg g-1. Our results showed that the material can be used as a new dye adsorbent.
Co-Authors Abd. Karim Abdul Karim Abdul Muiz Amir, Abdul Muiz Abdul Rahim Muhammad Abdul Wahid Wahab Abdur Rahman Arif, Abdur Rahman Abshor Marantika Ade Irma Suryani Affan, Fajar Ahyar Ahmad Alam, Muh. Nur Amalia, Nala AMELIA, NUR Andi Evi Erviani Anisa Anisa Anita Anita Anna Islamiyati Arfah, Rugaiyah Arfah, Rugaiyah A Arfah, Rugaiyah A. Arfah, Rugaiyah Andi Arman Arman Armus, Rakhmad Aziz, Fitria Baso Pallawagau Bustanur, Bustanur Candra, Filtra Delia, Dwi Anisa Despira, Despira Dianti, Ratna Diany Mairiza Djabal Nur Basir Djabal Nur Basir Eka Anggriani Odja Erlinda Yurisinthae Faiq Ainurrofiq Fatira Wahidah, Fatira Fauziah, St Firman, Nur Faiizah Aqiilah Fuad Fathurahman, Achmad Gani Rachim, St. Annisa Gappa, Maming Gita, Gita Gusrini, Wike Hasnah Natsir Hidayat Hidayat Indah Raya Irmawanti, Irmawanti Kamalin, Muhammad Kolo, La La Kalamu, La Yusran Lismawati, Lismawati Lubis, Haniah Mahandika, Diani Maini, Nur Maming Maming Maming Mardianti, Riska Mardiyah, Suci Mardiyanti, Riska Maswati Baharuddin Mifta Hasda Mohd. Winario Muh. Yusri Karim Muhammad Nadir Muhammad Syaipudin Munandar, Nurharis Novriavani, Novriavani Nunuk Hariani Soekamto Nur, Rahman NURAENI, ANDI Nurmaini Nurmaini Nursiah La Nafie PAISAL PAISAL Paulina Taba Permatasari Hasra, Adji Permatasari, Nur Umriani Prastawa Budi Putra, Muhammad Nanda Dwi Putri, Berliana R, Irwan Rahmawati, Rahmawati Rasyid, Herlina Ratna Ratna Rauf, Wahyudin Rifqil Khairi Rinaldi Rinaldi Rinda Fithriyana Romus, Mahendra Rusnaenah, Andi Saefullah Sari, Efti Novita Sari, Ummi Saru Reza Seniwati Dali Sirajang, Nasrah Siswantari Pratiwi Sitti Rahmah St Fauziah, St Fauziah St. Fauziah Sumarni, Sitti Syaharuddin Kasim Syamsuriyanti Syarifah Aeni Rahman Ta'bi, Widi Aprilia Tamrin Tamrin Usrah, Muhammad Jayzul Wahyu Febri Ramadhan Sudirman Wahyuti, Wahyuti Yuniantoro, Yuniantoro Yusafir Hala Zubaidah Assyifa