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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.4
- 수록면
- 133 - 139 (7page)
이용수
초록· 키워드
오류제보하기
The adsorptive aqueous removal of Sr<SUP>2+</SUP> and Cs<SUP>+</SUP> was performed using zeolitic materials prepared with fused coal fly ash (CFA) using a hydrothermal method. The influence of the mass ratio of NaOH to CFA of 0.3-1.2 in the synthesis of zeolitic material was evaluated its crystallization properties by X-ray diffraction (XRD) analysis. The zeolitic materials synthesized at the mass ratio of NaOH to CFA of 0.6-1.2 could be identified to have the same location as the XRD peaks of Na-A zeolite at 2θ = 7.18 - 34.18. They appeared to be zeolitic materials which were crystalline particles with a cubic structure by scanning electron microscopy (SEM). The experimental adsorption data for Sr<SUP>2+</SUP> and Cs<SUP>+</SUP> using the zeolitic materials were estimated satisfactory using pseudo-2<SUP>nd</SUP>-order kinetics and Langmuir isotherm models. The highest maximum adsorption capacities (q<SUB>m</SUB>) of 147.6 mg/g for Sr<SUP>2+</SUP> and 160.2 mg/g for Cs<SUP>+</SUP> were estimated by using the zeolitic material. This material demostrated superior crystallinity and was synthesized at a mass ratio of NaOH to CFA of 0.6. Consequently, the zeolitic material prepared from the fused CFA through the hydrothermal method could be used effectively for the adsorption of Sr<SUP>2+</SUP> and Cs<SUP>+</SUP> in aqueous solutions.
목차
ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
References
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