Hydrothermal Transformation of Natural Zeolite from Ende-NTT and Its Application as Adsorbent of Cationic Dye

Abstract

A synthetic zeolite was produced from natural zeolite from Ende-Nusa Tenggara Timur (NTT) 17.289, 17.276, and 16.483 mg/g, respectively, and after hydrothermal they increased to 37.398, 37.369 and 37.362 mg/g, respectively. In addition, the CEC increased from 84.154, 81.042, and 77.474 cmol/kg, respectively, to 244.063, 216.354, and 211.432 cmol/kg, respectively 37,394, 37,365, dan 37,360 mg/g. Selain itu,15, 81,04, dan 77,47 cmol/kg meningkat menjadi 244,06, 216,35, dan 211,43 cmol/kg. Model Langmuir lebih sesuai untuk proses kesetimbangan adsorpsi isotermal.

Adsorption Study of Rhodamine B and Methylene Blue Dyes with ZSM-5 Directly Synthesized from Bangka Kaolin without Organic Template

“…It was found that the modification of natural zeolites could significantly increase the adsorption of MB. The unmodified natural zeolite could only adsorb as much as 16-17 mg/g of MB, and this number increase twofold (reaching 36-37 mg/g) after modification using the hydrothermal process [24]. Vezentsev et al also reported adsorption of MB using bentonite clay and hydroxyapatite, and it was found that bentonite clay could adsorb MB significantly higher than hydroxyapatite.…”

“…Damiyine et al reported the usage of clay to adsorb RB, and the result suggested that the adsorption process preferably at higher pH with the adsorption capacity of the material reached 89.28 mg/g of RB [23]. Turning to MB, Ngapa et al reported adsorption of MB using natural zeolite (Mordenite) from Ende [24]. It was found that the modification of natural zeolites could significantly increase the adsorption of MB.…”

Removal of Sulphate and Manganese on Synthetic Wastewater in Sulphate Reducing Bioreactor Using Indonesian Natural Zeolite

“…the loss of bacteria biomass in the systems with high hydraulic loading rates. In the literatures, zeolites have reported shown a great capacity for adsorption of heavy metal (Mn, Cu, Cd, Pb and Zn) [13][14][15], aflatoxins [16], and cationic dye [17]. In addition, previously researchers reported that zeolites can be useful as a microbial support in anaerobic processes of different wastewaters [18][19][20].…”

Adsorption of Hexavalent Chromium From Aqueous Solutions Using Acid Activated of Natural Zeolite Collected From Ende-Flores, Indonesia

“…Recently, the modified Ende-Flores Natural zeolite use hydrothermal method for adsorption a cationic dye have been reported 12 . They used a base solution to activate the NZ.…”