지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.2
- 수록면
- 129 - 137 (9page)
이용수
초록· 키워드
오류제보하기
Copper sulfide was prepared by a hydrothermal method at 130°C. The copper to sulfur molar ratio (6-10) and ageing time (24-72 h) were their synthesis parameters. The obtained materials were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM), transmission electron microscope (TEM), UV-DR spectroscopy and X-ray photoelectron spectroscopy (XPS). In order to obtain monocopper sulfide, CuS, named as covellite, the molar recipe ratio of sulfur to copper should be less than 8 in any hydrothermal ageing time. The morphology showed spherical-like structure with energy band gap of 1.88-2.04 eV. CuS was tested for its photocatalytic degradation of paraquat under visible light irradiation. It exhibited excellent activities in the presence of H₂O₂. The kinetic of paraquat degradation was also investigated using Langmuir-Hinshelwood-Hougen-Watson (LHHW) model. The reaction rate constant was three times higher than TiO₂ under the same studied conditions.
목차
ABSTRACT
1. Introduction
2. Material and Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (32)
참고문헌 신청
Wang Y, Zhang L, Jiu H, Li N, Sun Y. Depositing of CuS nanocrystals upon the graphene scaffold and their photocatalytic activities. Appl. Surf. Sci. 2014;303:54-60.
Zhang W, Chen Z, Yang Z. An inward replacement/etching route to synthesize double-walled Cu7S4 nanoboxes and their enhanced performances in ammonia gas sensing. Phys. Chem. Chem. Phys. 2009;11:6263-6268.
Cao H, Qian X, Wang C, Ma X, Yin J, Zhu Z. High symmetric 18-facet polyhedron nanocrystals of Cu7S4 with a hollow nanocage. J. Am. Chem. Soc. 2005;127:16024-16025.
Zou J, Zhang J, Zhang B, Zhao P, Huang K. Low-temperature synthesis of copper sulfide nano-crystals of novel morphologies by hydrothermal process. Mater. Lett. 2007;61:5029-5032.
Gorai S, Ganguli D, Chaudhuri S. Morphological control in solvothermal synthesis of copper sulphides on copper foil. Mater. Res. Bull. 2007;42:345-353.
Zhang W, Chen Z, Yang Z. An inward replacement/etching route to synthesize double-walled Cu7S4 nanoboxes and their enhanced performances in ammonia gas sensing. Phys. Chem. Chem. Phys. 2009;11:6263-6268.
Cao H, Qian X, Wang C, Ma X, Yin J, Zhu Z. High symmetric 18-facet polyhedron nanocrystals of Cu7S4 with a hollow nanocage. J. Am. Chem. Soc. 2005;127:16024-16025.
Zou J, Zhang J, Zhang B, Zhao P, Huang K. Low-temperature synthesis of copper sulfide nano-crystals of novel morphologies by hydrothermal process. Mater. Lett. 2007;61:5029-5032.
Gorai S, Ganguli D, Chaudhuri S. Morphological control in solvothermal synthesis of copper sulphides on copper foil. Mater. Res. Bull. 2007;42:345-353.
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UCI(KEPA) : I410-ECN-0101-2020-539-000545493