化学研究与应用
化學研究與應用
화학연구여응용
CHEMICAL RESEARCH AND APPLICATION
2014年
7期
1034-1037
,共4页
任铜彦%何平%张萌萌%张便利%苟兴龙
任銅彥%何平%張萌萌%張便利%茍興龍
임동언%하평%장맹맹%장편리%구흥룡
纳米线%刚果红%吸附
納米線%剛果紅%吸附
납미선%강과홍%흡부
nanowires%congo red%adsorption
以FeCl3和NaOH为原料,一步水热合成了α-FeOOH纳米线,通过 XRD、SEM 技术对材料进行表征, XRD表明该材料的成分是α-FeOOH,从SEM可看出该材料是线并形成网状。考察了其对刚果红的吸附性能,并研究了吸附时间和温度对吸附性能的影响;实验表明:α-FeOOH纳米线对于刚果红的吸附在很短的时间内到达平衡,平衡时间为12 min,动力学吸附行为更符合准二级动力学模型;刚果红在α-FeOOH纳米线的吸附符合Langmuir等温吸附模型,吸附容量为208.77 mg·g-1。
以FeCl3和NaOH為原料,一步水熱閤成瞭α-FeOOH納米線,通過 XRD、SEM 技術對材料進行錶徵, XRD錶明該材料的成分是α-FeOOH,從SEM可看齣該材料是線併形成網狀。攷察瞭其對剛果紅的吸附性能,併研究瞭吸附時間和溫度對吸附性能的影響;實驗錶明:α-FeOOH納米線對于剛果紅的吸附在很短的時間內到達平衡,平衡時間為12 min,動力學吸附行為更符閤準二級動力學模型;剛果紅在α-FeOOH納米線的吸附符閤Langmuir等溫吸附模型,吸附容量為208.77 mg·g-1。
이FeCl3화NaOH위원료,일보수열합성료α-FeOOH납미선,통과 XRD、SEM 기술대재료진행표정, XRD표명해재료적성분시α-FeOOH,종SEM가간출해재료시선병형성망상。고찰료기대강과홍적흡부성능,병연구료흡부시간화온도대흡부성능적영향;실험표명:α-FeOOH납미선대우강과홍적흡부재흔단적시간내도체평형,평형시간위12 min,동역학흡부행위경부합준이급동역학모형;강과홍재α-FeOOH납미선적흡부부합Langmuir등온흡부모형,흡부용량위208.77 mg·g-1。
α-FeOOH nanowires have been synthesized via facile one-step hydrothermal route by using FeCl3 and NaOH as the raw materials. The product was characterized by X-ray diffraction ( XRD ) , scanning electron microscope ( SEM ) . The results indicated that the as-prepared α-FeOOH nanowires were interwoven into a network and composition of the material was α-FeOOH. The ad-sorption properties have been investigated for the adsorption of Congo red,and the factors of influence adsorption had been investiga-ted including adsorption time and temperature. The results indicated that the adsorption of Congo red was rapidly. The adsorption e-quilibrium nearly reached in 12 minutes. The pseudo-second-order kinetic model was very suitably used to describe the adsorption behavior of Congo red. The adsorption behavior of Congo red on α-FeOOH nanowires conforms with Langmuir isothermal equation, and the monolayer amount of adsorption was calculated as 208. 77 mg·g-1 .