脱硫废液作为硫源对纳米硫化锌的合成及表征  

Synthesis and Characterization of Nanocrystalline ZnS by Desulfurization Wastewater as Sulfur Source

作　　者：郝浩博 李娜 付应韬 李豪生 付志龙 安东海 陈惠敏[1,2] HAO Hao-bo;LI Na;FU Ying-tao;LI Hao-sheng;FU Zhi-long;AN Dong-hai;CHEN Hui-min(Changji University,Changji Xinjiang 831100,China;Xinjiang Technical Institute of Physics&Chemistry of CAS,Urumqi Xinjiang 830000,China)

机构地区：[1]昌吉学院,新疆昌吉831100 [2]中国科学院新疆理化技术研究所,新疆乌鲁木齐830000

出　　处：《辽宁化工》2023年第9期1249-1252,共4页Liaoning Chemical Industry

基　　金：新疆维吾尔自治区高校科研计划自然科学重点项目(项目编号:XJEDU2019I025);新疆维吾尔自治区高校基本科研业务费科研项目(项目编号:XJEDU2022P114)。

摘　　要：目前工作是降低煤焦化脱硫废液中硫含量,使脱硫废液继续循环利用。这种简便的路线不仅对环境友好,而且可以降低合成ZnS的成本。在不使用任何表面活性剂、有机溶剂的情况下,通过水热合成方法制备了ZnS纳米球。在这种方法中,分别使用乙酸锌和脱硫废液(来自煤焦化企业)作为Zn和S源。分别采用X射线衍射仪、扫描电子显微镜、X射线能谱仪、透射电镜和傅里叶红外光谱仪对产物进行表征。形成尺寸约为80~280 nm(来自TEM)的ZnS纳米球,可能是由于许多微晶的自组装所致(微晶尺寸为14~19 nm,来自XRD和TEM)。FT-IR光谱表明ZnS在制备过程中没有被氧化成为ZnO。然后,在680℃和1020℃条件下煅烧对样品进行优化,采用FT-IR对硫化锌纳米球的形态稳定性进行评价。The current work is aimed at reducing sulfur content in coal coking desulfurization wastewater and making desulfurization wastewater continue to be recycled.This facile route is not only environmentally friendly,but also can reduce the cost of synthetic ZnS.The ZnS nanospheres were prepared using a new sulfur source via hydrothermal synthesis method without using any surfactant,organic solvent or capping agent.In this approach,Zinc acetate and desulfurization wastewater(from coal coking enterprises)were used as Zn and S sources,respectively.XRD,SEM,EDS,TEM,and FT-IR were used to characterize the products.The formation of ZnS nanospheres,with the grain size of about 80~280 nm(from TEM),was possibly due to assembling of many crystallites(crystallite size of 14~19 nm,from XRD and TEM).FT-IR spectrum indicated stability of ZnS without oxidizing to ZnO during the preparation process.Then,the optimized sample was calcined at 680℃and 1020℃,and the morphological stability of the zinc sulfide nanospheres was evaluated by FT-IR.

关 键 词：脱硫废水 纳米球 硫化锌 水热法 

分 类 号：TQ125.1[化学工程—无机化工]