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All Journal Al-Kimia Walisongo Journal of Chemistry Nusantara Science and Technology Proceedings Journal of Sustainability Perspectives
Siti Rodiah
Universitas Islam Negeri Raden Fatah Palembang
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology

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Modified CaO Catalyst from Golden Snail Shell (Pomacea canaliculata) for Transesterification Reaction of Used Cooking Oil Siti Rodiah; Desti Erviana; Fachtur Rahman; Anissa Widya Budaya
Al-Kimia Vol 8 No 1 (2020): JUNE
Publisher : Study Program of Chemistry - Alauddin State Islamic University of Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/al-kimia.v8i1.12173

Abstract

One of alkaline earth metal oxide is calcium oxide, CaO has more attention because it has high strength, low solubility in methanol, and can be synthesized from sources that are easy to obtain. One of the sources of CaO and showed its catalytic properties was the golden snail shell. In this study, synthesize ash golden snail shell modified with fly ash leached and non-leached as a source of silicate (SiO2) has been investigated. The CaO/fly ash catalyst was applied to the transesterification reaction of used cooking oil. There are three catalysts have synthesized, namely golden snail shell calcined (CK), 75% golden snail shell calcined modified by 25% fly ash (CKFA), and by 25% fly ash leached (CKFAL). Based on the results of characterization with spectrophotometer X-Ray Diffraction (XRD), golden snail shell calcined at 900 ˚C containing 93.94% Ca (OH)2. Modified CaO catalyst from golden snail shell and fly ash were active to convert used cooking oil become biodiesel.
Utilization of Modified Imperata Grass with Cu Nanoparticles as Methylene Blue Adsorbent Syaikhina Abdul Wakhid; Jauharuddin Luthfi Al Jabbar; Siti Rodiah
Nusantara Science and Technology Proceedings Multi-Conference Proceeding Series B
Publisher : Future Science

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Abstract

Imperata grass microcrystalline cellulose modified with Cu nanoparticles is one of the alternative adsorbents for the reduction of the concentration of methylene blue (MB) dye. The effectiveness of this developed adsorbent in the adsorption process of MB dye was studied. Cu nanoparticles were employed to modify the synthesized cellulose microcrystalline imperata grass. The modified Cu-cellulose adsorbent was successfully produced with brown color and Fourier Transform Infra-Red (FT-IR) identified the presence of OH, CH, and CO peaks. X-ray diffraction (XRD) analysis also confirmed that the produced adsorbent was in microcrystalline phase with a crystal size of 4.402 nm The microcrystalline cellulose-Cu nanoparticles used showed potential as an MB adsorbent, where the MB removal percentage (% A) was 59.574%.
Silica-Rice Husk as Adsorbent of Cr (VI) Ions Prepared through Sol-Gel Method Siti Rodiah; Mifta Huljana; Jauharuddin Luthfi Al Jabbar; Chairul Ichsan; Hasan Marzuki
Walisongo Journal of Chemistry Vol 4, No 1 (2021): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v4i1.8045

Abstract

One of the heavy metals contained in the textile industry wastewater is chromium (Cr). Chromium hexavalent ions (Cr6+) are highly toxic and its accumulation in the human body will cause various negative impacts. This study aimed to determine the characteristics of silica synthesized by the sol-gel method to gain homogeneity and high purity. Synthesized silica was calcined at 700°C for 4 hours and its performance to adsorb Cr(VI) ions  in textile wastewater was investigated. The presence of -OH group from silanol (–Si-OH) was appeared at wavenumber 3367.70 cm-1, meanwhile siloxane functional groups were recorded at 1056.99 cm-1 and 784.38 cm-1 due to the O-Si-O asymmetric stretching and Si-O bending vibration. Optimum conditions of silica to adsorb Cr(VI) ions took place at pH 2 and contact time of 90 minutes by adsorption efficiency of 75,65% and followed the Freundlich isotherm.
Implementation Of Washing Program In Sustainable Water Management At Uin Raden Fatah Palembang Nyayu Khadijah; Irham Falahudin; Yenrizal Yenrizal; Siti Rodiah; Chairul Ichsan
Journal of Sustainability Perspectives Vol 2, No 3 (2022)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.031 KB) | DOI: 10.14710/baf.%v.%i.%Y.100-105

Abstract

This paper aims to explain and describe the implementation of the concept of sustainable water management applied at UIN Raden Fatah Palembang, as part of the implementation of the green campus idea. UIN Raden Fatah's participation in the UI GreenMetric program has been started since 2019 and will be active in 2020. Water management is an important thing at UIN Raden Fatah Palembang because of the condition of the campus itself which is in a water reservoir and swamp area. The campus is divided into two locations, namely Campus A in the Jalan Jenderal Sudirman area and Campus B in the Jakabaring area, Palembang. Campus B is a new campus that will only start operating in 2021, therefore, water management arrangements are very important. The management of water resources is carried out with the Wash program which consists of revitalizing clean water infrastructure, metering clean water supply, water reuse program, improving surface water quality, as well as construction of drainage and canalization. In practice, higher education leaders issue policies that involve all the academic community, ranging from education staff, educators, to students. Keyword: water, green campus, sustainable, swamp
Co-Authors Anissa Widya Budaya Chairul Ichsan Devi Widya Lestari Ericha Ramadhani Erviana, Desti Fachtur Rahman Hasan Marzuki Irham Falahudin Jauharuddin Luthfi Al Jabbar Mifta Huljana Muhammad Asnari Nyayu Khadijah Ratna Ediati Syaikhina Abdul Wakhid Yenrizal Yenrizal