Aluminosilicate and ZSM-5 catalyst were synthesized from local materials, low-grade Indonesian kaolin. High quartz impurities content in the kaolin was successfully reduced by consecutive treatment process including washing, centrifugation, Fe3+ treatment. All showed mesoporous structure with pore diameter around 3.5 nm. The catalytic activity investigated acetalization of 3,4-dimethoxybenzalde...

Geopolymers are a class of X-ray amorphous alkali aluminosilicate gel binder materials with potential applications in a wide range of areas. In particular, geopolymers can provide significant improvements over traditional Portland cement technology in applications requiring resistance to acid or salt attack, or thermal stability at temperatures up to 1000°C. The quasi-zeolitic nature of some of...

We demonstrate in this work the spontaneous curvature-induced charge separation inorganic aluminosilicate nanotubes, making them very interesting potential co-photocatalysts.

We describe an Er3+-doped aluminosilicate core photonic crystal fibre laser incorporating distributed Bragg reflectors written by two-photon 193nm irradiation through an optical phase mask as the feedback elements. The laser is diode pumped at 980nm and evidence of dual linewidth laser operation close to threshold is observed. However, at higher pumping levels gain competition preferentially se...

In vitro and in vivo studies were conducted to evaluate the efficacy of a hydrated sodium calcium aluminosilicate (Improved Milbond-TX, IMTX) to alleviate the toxic effects of aflatoxin (AF) B1 in chicks. In vitro results indicated that IMTX was able to bind 100% of AFB1 at pH 3 to 9. In the in vivo study, five pen replicates of six chicks were assigned to each of four dietary treatments, which...

Holtz, F., Behrens, H., Dingwell, D.B. and Taylor, R.P., 1992. Water solubility in aluminosilicate melts of haplogranite composition at 2 kbar. In: Y. Bottinga, D.B. Dingwell and P. Richet (Guest-Editors), Silicate Melts. Chem. Geol., 96: 289-302. The compositional dependence of H20 solubility was investigated at 2 kbar and 800 °C in haplogranite melts (system SiO2-NaAISi3Os-KA1Si308 or Qz-Ab-O...

In-situ alumina-zirconia composite bodies were fabricated by heat treatment of gibbsite-zircon-kaolinite mixture at 1450℃. The current research investigated crystallization behavior and mechanical properties of the mentioned mixture in the presence of 5 wt.% MgO as an additive. X-ray diffraction (XRD) results showed that alumina, zirconia, and magnesium aluminosilicate were crystallized during ...