NMR ESR NMR 5
Fig. ph Si-O-Na H O Si- Na OH Si-O-Si OH Si-O Si-OH Si-O-Si Si-O Si-O Si-OH Si-OH Si-O-Si H O 6
Fig. (a) Na O-B -Si Na O-B Si Fig. (b) Na O-CaO-SiO Na O-CaO-B -Si. Na O-. CaO-. Si -. Al O wt m Fig. R (t) D d 7
%Fig. % Amount of extracted Na( ) % Co Cr n Fig.Co. wt poor-tobermorite Table 8
chemical composition / wt% Si Ca Na Co Before treatment(calc).... After hydrothermal treatment.... After hydrothermal/hn treat... H Si (calc.). Si (calc.). Na, Ca, Co Cr Na, Ca Cr Cr Fig. Fig. Co, Cr B O Co Na, Ca, B B % Cr Al wt% Cr B ESR Fig. Cr 9
Cr Si NMR Cr Al Al MAS-NMR Na Ca 10
No. Treatment conditions Si Na O CaO Al (M=Co, M Cr) B wt%blue glass+ %B...... wt%green glass+ %B (Acid-treated after remelt for days)...... wt%green glass+ %B (Immediately acid treated after remelt)...... Glass ( ) re-acid treated after dry at ºC for h...... Bulk porous glass..... wt%b Al Table Al %. % Al Al wt% Ca Fig. Ca 11
Fig. Fig. nm / Na O-B -SiO Ca Ca Q( ) Fig. Ca Na O-B -SiO Ca 12
Eu, Ce, Tb, Cu, Sn, Mn. M. M ig. Fig. Ce d f Ce Al (N ) 13
.. OH M-O Eu,Cu % Fe nm Fe Fe Fe MnO nm 14
JST JST,,,,, -,,, - 15
,, -,.,,, -,.,, -,.,, -,.,, -,.,, -,.,,,, PCT/ JP /. H. Masui, D.Chen, T. Akai and T. Yazawa, Hydration in alkali silicate glasses studied by two dimentional multi-quantum magic angle spinning NMR, Z. Naturforsch A, a, - (). T. Akai, T. Akai, NMR investigation of ion dynamics in inorganic glasses, in Recent Research Development in Non-Crystalline Solids, ( ), Transworld research network (). D. Chen, H. Masui, T. Akai, and T. Yazawa, Decoloration of waste colored glass through phase-separation and its mechanism, J. Aust. Ceram. Soc., ( ), ().. T. Akai, D. Chen, and H. Masui, and T. Yazawa, Structure change on the surface of leached sodium borosilicate glasses, Glass Technology, ( ), - (). D. Chen, H. Masui, T. Akai, and T. Yazawa, Influence of Heat Treatment on the Structure of the Soda- Lime-Borosilicate Glass, Phys. Chem. Glasses, ( ) (). T. Akai, D. Chen, K. Kuraoka, T.Yazawa, Y. Yamamoto, T. Shirakami, and K. Urabe Sodium extraction from the waste glass by acid leaching to obtain silica source for construction materials., Ceramic Trans. Environmental Issues & Waste Management Technology in the Ceramic & Nuclear Industry, - ().. D. Chen, H. Masui, T. Akai, and T. Yazawa, Glass recycling through phase separation, Ceramic Trans, Environmental Issues & Waste Management Technology in the Ceramic & Nuclear Industry,, ().. T. Akai, D. Chen, H. Miyoshi and T. Yazawa, Investigation of hydration process in Na O- Si glasses by Raman, IR AND NMR spectroscopy, J. Non-cryt. Solids, in press. D. Chen, H. Miyoshi, T. Akai and T. Yazawa, NMR Study of structural changes in alkali borosilicate glass with heat treatment, J. Non-cryst. Solids, in press. H. Miyoshi, D. Chen,T. Akai and T. Yazawa, Effect of Calcium additive on the structural changes with heat treatment behavior in sodium borosilicate glass, J. Non-cryst. Solids, in press.. 16
.. T. Akai, D. Chen, K. Kuraoka, T.Yazawa, Y. Yamamoto, T. Shirakami, and K. Urabe, Investigation of sodium leaching behavior from soda-lime silicate glass fine particle in acid solution for the recycling of waste glass as cement aggregate, J. Am. Ceram. Soc., submitted. D. Chen, H. Masui, T. Akai and T. Yazawa, A New Recycling Process for Colored WasteGlass through glass phase separation, J. Am. Ceram. Soc., submitted. H. Miyoshi, D. Chen and T. Akai, A novel medhod to recycle the waste glass using sub-critical water, J. Non-cryst.Solids, submitted. T. Akai et al., Removal of sodium from the waste glass by acid leaching to obtain silica source for construction materials Am.Ceram. Soc, th annual meeting,. D. Chen et al, Influence of heat treatment on the structure of the soda-lime borosilicate glass, Forth international Borate glass conference... 17