Preliminary Study of Bio-Metal Organic Frameworks (Bio-MOFs) Based Chromium-Citric Acid for CO_2 Adsorption Application

Abstract

According to the Intergovernmental Panel on Climate Change (IPCC), carbon dioxide (CO 2 ) gas is one of the significant factors that caused climate change. In the IPCC's special report regarding Carbon Dioxide Capture and Storage, there was discussion about several technologies for CO 2 gas capture. One of the technologies is using solid sorbent such as activated carbon, silica, metal oxides, and zeolite. Recently, there has been a significant increase in the research of Metal Organic Frameworks (MOFs) which are believed to be the most promising adsorbent in CO 2 adsorption application. It is a crystalline type of porous material consisting of the metal ions and the organic ligands. With all the advantages possessed by MOFs, these adsorbents are still difficult to be applied on industrial scale due to high fabrication cost. Composed of non-renewable feedstock raw materials, some MOFs are not environmentally friendly. To quickly response this challenge, we conducted investigation on the use of biologically derived MOF (Bio-MOF) in CO 2 capture application. A novel of Bio-MOF Chromium-Citric Acid (Cr-CA) has been explored. The synthesis process is carried out through the hydrothermal reaction method using eco-friendly solvent potassium hydroxide and Aquabidest. The characterization of MOF was carried out by Brunauer-Emmett-Teller (BET), X-ray diffraction (XRD) testing, scanning electron microscope (SEM), thermal gravimetric analysis (TGA), and Fourier transform infrared spectroscopy (FTIR) analysis. We would like to recommend that research about MOF with Chromium-Citric Acid content is conducted and investigated further on the performance of gas adsorption with this porous material.

Feasibility Study of Biofuel Incorporated Nanoparticles as Sustainable IC Engine Fuel: Opportunities and Challenges - An overview

“…Formulation Nanoparticles are becoming more popular in biofuel production because they have better effects on metabolic responses in many bioprocesses. Nano-products such as nanofibers, nanotubes, and metallic NPs have been found to be used in biofuel synthesis systems [13], [93], [95]. As shown in Table 1, incorporating bio based fuel with nanoparticles completely changes the physico-chemical properties of the produced biofuel.…”

“…Furthermore, continued consumption will cause fluctuations in crude oil prices, as well as contribute to greenhouse gas (GHG) emissions from their use [9], [10], are having a negative impact on earth's natural environment and human health [11]. Therefore, it is critical to develop new green technologies that are renewable [12], sustainable, environmentally benign, efficient, and commercially feasible [13], [14]. Despite these benefits, there are a number of negatives connected with the feedstocks, such as a lack of available land, competition with the food and scarcity in the market, and high costs.…”