计算机与应用化学
計算機與應用化學
계산궤여응용화학
COMPUTERS AND APPLIED CHEMISTRY
2015年
2期
253-257
,共5页
弱碱树脂%邻苯二甲酸%吸附%热力学
弱堿樹脂%鄰苯二甲痠%吸附%熱力學
약감수지%린분이갑산%흡부%열역학
weak base resin%o-phthalic acid%adsorption%thermodynamic
研究了大孔弱碱树脂 D309（聚苯乙烯系）和 PVP（聚乙烯吡啶系）树脂对水溶液中邻苯二甲酸的吸附性能，探讨了溶液的pH和无机盐对树脂吸附邻苯二甲酸的影响。结果表明，这2种树脂对邻苯二甲酸均具有良好的吸附性能，其对邻苯二甲酸的吸附都同时满足Langmuir 和Freundlich等温吸附方程；D309树脂通过Lewis作用和静电作用吸附邻苯二甲酸，PVP树脂对邻苯二甲酸的吸附行为是氢键所致。吸附是一放热过程且能够自发进行。
研究瞭大孔弱堿樹脂 D309（聚苯乙烯繫）和 PVP（聚乙烯吡啶繫）樹脂對水溶液中鄰苯二甲痠的吸附性能，探討瞭溶液的pH和無機鹽對樹脂吸附鄰苯二甲痠的影響。結果錶明，這2種樹脂對鄰苯二甲痠均具有良好的吸附性能，其對鄰苯二甲痠的吸附都同時滿足Langmuir 和Freundlich等溫吸附方程；D309樹脂通過Lewis作用和靜電作用吸附鄰苯二甲痠，PVP樹脂對鄰苯二甲痠的吸附行為是氫鍵所緻。吸附是一放熱過程且能夠自髮進行。
연구료대공약감수지 D309（취분을희계）화 PVP（취을희필정계）수지대수용액중린분이갑산적흡부성능，탐토료용액적pH화무궤염대수지흡부린분이갑산적영향。결과표명，저2충수지대린분이갑산균구유량호적흡부성능，기대린분이갑산적흡부도동시만족Langmuir 화Freundlich등온흡부방정；D309수지통과Lewis작용화정전작용흡부린분이갑산，PVP수지대린분이갑산적흡부행위시경건소치。흡부시일방열과정차능구자발진행。
The adsorption characteristics of o-phthalic acid on macroreticular weak basic resins D309 and polyvinylpyridine (PVP) was carried out through static experiments. The effects of pH and inorganic salt in solution were discussed. The results showed that the adsorption date fitted both the Langmuir and Freundlich adsorption isotherm well. The adsorption of o-phthalic acid on D309 was attributed to both Lewis acid-base and electrostatic interactions, and the hydrogen bonding is for adsorption of o-phthalic acid on PVP. Adsorption of o-phthalic on the two adsorbents is suggested an exothermic process which runs spontaneously.
