CAJ | 학술논문

研究了基于 D311树脂模板法制备的多孔纳米钛酸钙微球(PCTOM)对水中钯的吸附和富集性能，考察了影响吸附的因素，探讨了吸附剂的再生及钯的洗脱回收方法，并应用于含钯工业废水中钯的吸附和回收。结果表明，PCTOM对水中的钯具有很强的吸附富集性能，但是吸附能力受介质的pH值和振荡接触的影响。当介质pH值为5~8时，PCTOM对钯的吸附量最大，振荡10 min吸附反应达到平衡，而且多孔纳米钛酸钙微球对钯的吸附量随初始浓度的上升而增加。当钯的初始浓度为130 mg/L时，吸附基本饱和，饱和吸附量可达64.17 mg/g。被吸附的钯可用硝酸溶液洗脱回收，同时吸附剂也实现了再生。将该吸附剂应用于含钯工业废水中钯的吸附回收，结果满意。
연구료기우 D311수지모판법제비적다공납미태산개미구(PCTOM)대수중파적흡부화부집성능，고찰료영향흡부적인소，탐토료흡부제적재생급파적세탈회수방법，병응용우함파공업폐수중파적흡부화회수。결과표명，PCTOM대수중적파구유흔강적흡부부집성능，단시흡부능력수개질적pH치화진탕접촉적영향。당개질pH치위5~8시，PCTOM대파적흡부량최대，진탕10 min흡부반응체도평형，이차다공납미태산개미구대파적흡부량수초시농도적상승이증가。당파적초시농도위130 mg/L시，흡부기본포화，포화흡부량가체64.17 mg/g。피흡부적파가용초산용액세탈회수，동시흡부제야실현료재생。장해흡부제응용우함파공업폐수중파적흡부회수，결과만의。
Adsorption and enrichment capacity of porous nano-calcium titanate microspheres for palladium ions were investigated. The optimum experimental parameters for the adsorption and elution of the palladium were also studied. The results show that the porous nano-calcium titanate microspheres have strong adsorption and enrichment capacity for the palladium ions in water, pH and oscillation time have effect on the adsorption capacity;when pH is in the range of 5~8, the adsorption capacity of the porous nano-calcium titanate microspheres for the palladium ions in water can reach the highest; while the adsorption time is 10 min, and the adsorption reaction can reach the equilibrium;adsorption amount of the porous nano-calcium titanate microspheres for the palladium ions increases with increasing of palladium initial concentration;when palladium initial concentration is 130 mg/L ,the saturation adsorption capacity can reach 64.17 mg/g.Palladium ions adsorbed on the porous nano-calcium titanate microspheres can be completely eluated by using 1 mol/L nitric acid. The method has been applied to recover palladium ions in industry waste water, the results are satisfactory.