The Oxidation State of Sulfur on the Air Side Surface of Soda-lime Float Glass as Determined by X-ray Absorption Near Edge Structure Spectra
Three ways were used to prepare sulfide in soda-lime-silicate glass samples,i.e.,glass heat-treated in N2/H2 (90/10 volume ratio),doped with different Carbon/Sulfur in mol ratio,as well as different sulfur source respectively.The oxidation state of sulfur on the air side surface of float glass heat-treated in N2/H2 and the bulk samples of the other two were determined by X-ray absorption near edge structure spectra (XANES).It was observed on the air side that: 1) A weak pre-edge exhibits at 2466.8eV which appears only with sulfite at high temperature and related to sulfur source;2) A typical peak of sulfate at 2482.4eV decreases with increasing the temperature and heating duration.3) Two peaks associated with sulfide,a broader one at about 2476.3eV and a sharper one with an accurate position at 2473.7eV.The S2- content at air side of glass heat-treated at 750℃ is higher than that of the glass treated at other temperatures,and increases with the heating duration,which is just the reverse at 1050℃,because the S2- volatilizes to the atmosphere easily at higher temperature.In addition,the content of S2- increases with increasing C/S ratio.The local environment of S2- in the glass with Na2S is different from that of with FeS,as indicated by the broader resonance.The spectra indicate that the glass heat-treated in N2/H2 (90/10),doped with different C/S ratio and with Na2S have the same sulfites or sulfites.
Soda-lime float glass Oxidation state Sulfur X-ray absorption near edge structure spectra
Zheng Meng Wang Hong Yourong Huang Jinzhen Wang Yaohui Li Di Shi Hong Jiang
State Key Laboratory of Green Building Materials, China Building Materials Academy, 100024,Beijing, Hainan University, 570228, Haikou, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
316-322
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）