Incorporation of Brazilian Diatomite in the Synthesis of An MFI Zeolite

Abstract

The need for greener procedures is a fact to reduce residues, to decrease industrial costs, and to accomplish the environmental agreements. In an attempt to address this question, we propose the addition of a natural resource, Brazilian diatomite, to an MFI zeolite traditional synthesis. We have characterized the resulting product with different techniques, such as X-ray diffraction, microscopy, and gas sorption, and, afterwards, we evaluate the greenness of the process by the Green Star method. The results were promising: We obtained the desired topology in the form of small crystallites aggregated and a pore diameter of 0.8 nm. In conclusion, the product has the necessary characteristics for an adsorption or catalytic future tests and escalation to industrial production.

LTA zeolite synthesis using natural materials and its evaluation by Green Star methodology

“…Finally, we performed a Green Star analysis based on the methodology described by Ribeiro et al and evaluated the results according to the literature [21,30]. The results represented in Fig.…”

Waste to health: Ag-LTA zeolites obtained by green synthesis from diatom and rice-based residues with antitumoral activity

“…Zeolites synthesized from silica source originated from rice husks, or diatoms have been previously reported. However, those studies are usually focused on the synthesis parameters [27][28][29][30][31][32][33][34][35][36] and more recently, applications in catalysis [37][38][39][40] and adsorption [41][42][43]. The literature is scarce on the utilization of zeolites for anti-cancer application and only includes the use of commercially available zeolite A (LTA) [44], X, and Y (FAU) [45,46].…”

Interzeolitic Transformation of Clinoptilolite into GIS and LTA Zeolite

“…To reduce the production costs of synthetic zeolites, alternative sources of silicon and aluminum have been used. High-quality synthetic zeolites can be synthesized using a wide range of alternative sources, including natural aluminosilicates such as clays [8][9][10][11][12][13][14][15][16][17][18][19], natural zeolites [20,21], diatomite [22,23], and waste resources [24][25][26][27][28][29][30][31][32].…”