Template-free and green sonochemical synthesis of hierarchically structured CuS hollow microspheres displaying excellent Fenton-like catalytic activities

Deng, Chonghai; Ge, Xinqing; Hu, Hanmei; Li, Yao; Cui, Han; Zhao, Dan

doi:10.1039/c3ce42376j

Cited by 75 publications

(29 citation statements)

References 50 publications

(65 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Gupta et al explored the novelty of pectin-CuS nanocomposite structure for dye degradation utilizing the ability of pectin as a bio-adsorbent and CuS as a photocatalyst (Gupta et al 2012 (Shu et al 2015). To date, different techniques have been developed to prepare CuS nanocrystals including template-mediated growth (Wu et al 2013), hydrothermal (Wang et al 2009), solvothermal (Meng et al 2013, Kumar et al 2011, thermolysis , wet chemical method (Roy and Srivastava 2007), polyol route (Shen et al 2003), solid-state reaction (Wang et al 2006), and sonochemical methods (Deng et al 2014). Many of the aforementioned synthetic methods face disadvantages such as need of high temperature, harsh reaction conditions, use of template material which may leave impurities, low reaction yield restricting their large-scale production, and the presence of undesired secondary phases.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

et al. 2015

View full text Add to dashboard Cite

CuS nanoparticles (NPs) of few nanometers in size were prepared by a wet chemical method. The structural, compositional, and optical properties of the NPs were characterized by X-ray diffraction (XRD), scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, micro Raman and Fourier transform infrared spectroscopy, N 2 adsorption-desorption isotherms, and UV-Vis diffuse reflectance spectroscopy. The XRD pattern proved the presence of hexagonal phase of CuS particles which was further supported by Raman spectrum. The estimated band gap energy of 2.05 eV for the slightly sulfur-rich CuS NPs is relatively larger than that of bulk CuS (1.85 eV), indicating the small size effect. As-prepared NPs showed excellent photocatalytic activity for the degradation of methylene blue (MB) under visible light. The surface-bound OH -ions at the CuS nanostructures help adsorb MB molecules facilitating their degradation process under visible light illumination. The studies presented in this paper suggest that the synthesized CuS NPs are promising, efficient, stable, and visible-light-sensitive photocatalyst for the remediation of wastewater polluted by chemically stable azo dyes such as MB.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

et al. 2015

View full text Add to dashboard Cite

show abstract

“…The band gap plots of [ahm] 2 vs. hm as following equation for the Fig. 9b (Tanver et al 2014;Deng et al 2014).…”

Section: Resultsmentioning

confidence: 99%

“…Recently, nanostructured metal sulfide-based photocatalysts with different morphologies and sizes have attracted intense interest due to their ability to rapidly and efficiently remove a large number of organic pollutants in aqueous systems (Deng et al 2014;Tanver et al 2014;Wang et al 2014a). Among all, semiconducting copper sulfide (CuS) nanomaterials have gained extensive attentions due to their nontoxicity, good photosensitivity, and excellent physical and chemical stability, eco-friendly and economic (Mikyung and Kijung 2014;Goel et al 2013;Dang et al 2014).…”

Section: Introductionmentioning

confidence: 99%

CuS/MoS2 nanocomposite with high solar photocatalytic activity

et al. 2015

View full text Add to dashboard Cite

Two-dimensional CuS/MoS 2 heterostructure with high photocatalytic activity had been successfully obtained by a simple combination of wet chemical method and hydrothermal process. CuS nanosheets had been successfully grown on the twodimensional MoS 2 nanosheets uniformly and tightly. The obtained heterostructures were well characterized through X-ray diffraction patterns, transmission electron microscopy, Fourier transform infrared spectra, ultraviolet-visible diffuse-reflectance spectra, and Zeta potential measurement. Photocatalytic performance of the CuS/MoS 2 nanocomposite was evaluated toward the decomposition of methylene blue solution under natural light. The as-prepared nanocomposite showed remarkably enhanced photocatalytic activity compared with pure CuS and MoS 2 . This could be attributed to the enhanced dyestuff absorption and charge transport after the conjugation between CuS and MoS 2 .

show abstract

“…When the nanoflakes of CuS form in solution, they will be frizzled with each other to decrease the surface energy. At the same time, Deng and co-workers [140] also reported the hierarchically structured CuS hollow microspheres using template-free and green sonochemical synthesis. The authors used copper acetate monohydrate and thiourea as precursors.…”

Section: Precipitation Reactionmentioning

confidence: 98%

Understanding of the major reactions in solution synthesis of functional nanomaterials

Wang

2016

Sci. China Mater.

View full text Add to dashboard Cite

This review covers the major reactions involved in the solution synthesis of nanomaterials. It was designed to classify the traditional strategies such as precipitation, reduction, seed growth, etching, and so on into two basic processes which are termed as bottom-up and top-down routines. The discussion is focused on the basic mechanism and principles during the nucleation and growth of nanocrystals, especially in the solution system. This review also presents a prediction for how to utilize these intrinsic processes to artificially construct the desired specific and functional nanostructures. We try to describe the most directive and effective way to control the structures of nanocrystals for researchers who can master the major reaction mechanism and grasp the basic technologies in synthetic nanoscience.

show abstract

Template-free and green sonochemical synthesis of hierarchically structured CuS hollow microspheres displaying excellent Fenton-like catalytic activities

Abstract: Hollow CuS architectures have been fabricated via a template-free and green sonochemical process displaying superior Fenton-like catalytic activities.

Cited by 75 publications

References 50 publications

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

Synthesis of CuS nanoparticles by a wet chemical route and their photocatalytic activity

CuS/MoS2 nanocomposite with high solar photocatalytic activity

Understanding of the major reactions in solution synthesis of functional nanomaterials

Contact Info

Product

Resources

About