title: Carbon-coated Zinc Sulfide nano-clusters: synthesis, photothermal conversion and adsorption properties.
abstract: Carbon-coated cluster-like ZnS nanospheres were synthesized by a facile solvothermal route. ZnCl2, thiourea, and glucose were selected as the raw materials. The formed ZnS with hexagonal phase has spherical cluster-like structure, which shows good monodispersity in size. A thin layer carbon is coated on the surface of ZnS cluster-like spheres. The thickness of carbon shell is dependent on the dosage of glucose. The carbon-coated ZnS nano-clusters show the same emission as that of pristine ZnS nano-clusters. Exposure of the aqueous dispersion of carbon-coated ZnS products to 980 nm laser can elevate its temperature by 5.1°C in 8 min. It was found that the photothermal conversion effect mainly comes from the carbon component and at the same time, the heterointerface between ZnS and carbon also provides a positive role for it. In addition, the carbon-coated ZnS products can absorb dye molecular with highest adsorption capacity of 36.8 mg/g toward Rhodamine B. The present finding demonstrates their potential applications in photothermal agents, adsorbents, and related fields.
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
authors.forename: Chunlin
authors.initials: C
authors.lastname: Bao
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210013, PR China. Electronic address: zhuguoxing@ujs.edu.cn.
authors.forename: Guoxing
authors.initials: G
authors.lastname: Zhu
authors.affiliation: College of Chemistry, Jilin University, Changchun 130012, PR China.
authors.forename: Mengqi
authors.initials: M
authors.lastname: Shen
authors.affiliation: School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China.
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
keywords: Adsorbent; Carbon shell; Photothermal conversion; Semiconductor; ZnS nano-cluster