高等学校化学学报
高等學校化學學報
고등학교화학학보
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES
2015年
2期
212-214
,共3页
刘作娇%范高超%李星星%谭学才%钟莲云%黄在银
劉作嬌%範高超%李星星%譚學纔%鐘蓮雲%黃在銀
류작교%범고초%리성성%담학재%종련운%황재은
Ag3 PO4%光催化%形貌效应%光量热法%表面热力学
Ag3 PO4%光催化%形貌效應%光量熱法%錶麵熱力學
Ag3 PO4%광최화%형모효응%광량열법%표면열역학
Ag3 PO4%Photocatalysis%Morphology effect%Photocalorimetry%Surface thermodynamics
A self-designed photomicrocalorimeter was applied to obtain in-situ thermodynamic and kinetic in-formation on photocatalysis degradation of methylene blue(MB) over different morphologies of Ag3PO4. The molar surface Gibbs free energies(Gsm) of the prepared Ag3PO4 were obtained based on the thermokinetic theo-ry and microcalorimetry. The acquired in-situ thermodynamic and kinetic information of the photocatalytic process was successfully associated with Gsm and catalytic performance of the prepared Ag3 O4 catalyst with dif-ferent morphologies. The results revealed that the heat effect and enthalpy change rate of the tetrapod, cube and dodecahedron Ag3 PO4 increased in order, whereas the Gsm and catalytic performance of the tetrapod, cube and dodecahedron Ag3 PO4 decreased in order.
