Synthesis and Characterization of Ternary Composite from Zeolite/ZnO/Fe3O4 for the Removal of Methylene Blue Dye

Abstract

The Enormous Expansion Of Industrialization Across The World Has Been Accompanied By Discharging Of Large Amounts Of Waste Materials Such As Organic Dyes That Resulted In Water Pollution. Zeolite Is Among The Porous Materials Used For The Absorption Of Pollutants In Wastewater. However, Zeolite Is A Non-Magnetic Material, It Had Been Often Synthesized By The Hydrothermal Method, And It Has Limited Absorption Active Sites. In This Work, We Have Synthesized A Magnetic Zeolite/Zno Composite With High Adsorption Performance, Recyclability, And A New Magnetic Separation Way By Co-Precipitation Method For Methylene Blue (Mb) Removal From Wastewater. Sugar Cane Bagasse Ash Was Used As A Low-Cost Silica Source And Waste Food Packaging Aluminum Foil As An Alumina Source To Synthesized Zeolite Adsorbent By Using Hydrothermal (Z-A) And Sol-Gel Method (Z-B). The Synthesized Materials Were Characterized By Using Xrd, Sem, Ftir, Tga?�?Dta, And Uv-Vis Spectroscopy. The Xrd?�?S Results Confirmed That Z-A Was Sodalite Octahydrate Zeolite And Z-B Was Zeolite Lta Type. In Addition To This, The Peak Of Zno Did Not Appear On The Xrd Pattern Of Both Z-A/5% Of Zno (Z5) And Z-B/Z5 Due To Its Small Quantity. The Sem Results Showed The Porous And Spherical Nature Of Z-A And Z-B, And The Formation Of Composites Was Also Confirmed By Ftir?�?S Peak Shift From 357 Cm-1To 353 Cm-1. Tga?�?Dta Analysis Concluded That Synthesized Zeolites And Their Composites Were Stable Up To 800??C. The Removal Of Mb From Wastewater Using Both Composites Was Checked By Uv-Visible Spectroscopy. The Results Revealed That The Optimum Absorption Was Observed At Ph Of 7, An Adsorbent Dosage Of 3g/L, Contact Time 30min, And Mb Concentration Of 10ppm. The Absorption Results Were Compared With Langmuir And Freundlich Models Then First And Second-Order Kinetics Were Studied. The Removal Efficiencies Of Z-A/Z5 And Z-B/Z5 Were Greater Than Z-A And Z-B By 28.9% And 37.14 % Respectively And Contact Time Was Also Reduced From 150min To 30min Due To Additional Adsorption Sites Of Zno. The Addition Of Fe3o4 To Z A/Z5 And Z-B/Z5 Make Them Magnetic Materials Named Mz-A/Z5 And Mz-B/Z5 But Their Adsorbance Was Reduced Insignificantly. The Composites Also Showed Outstanding Stability For Three-Round Tests, And It Was Observed That The Removal Efficiency Of Mz-A/Z5 And Mz-B/Z5 Is Comparable. Therefore, Mz-B/Z5 Is A Promising Absorbent For Removal Of Mb Due To Its Safety, Synthesized Without Using Autoclave And Cost-Wise.