TY - JOUR ID - TI - Enhancement the Sensitivity of Zinc Sulfide Nanostructure Against NO2 Toxic Gas by Loading Graphene AU - Sabreen A. Khalaf AU - Iftikhar M. Ali PY - 2018 VL - 59 IS - 4C SP - 2242 EP - 2248 JO - Iraqi Journal of Science المجلة العراقية للعلوم SN - 00672904 23121637 AB - Nanocrystal-ZnS-loaded graphene was synthesized by a facile co-precipitation route. The Graphene was affected on the characterization of ZnS which has been investigated. XRD results reveal that ZnS has a cubic system while the hexagonal structure has been observed by loading graphene during preparation ZnS. D.c-conductivity proves that ZnS and ZnS/Gr have semiconductor behavior. The sensing properties of ZnS/Gr against NO2 gas were investigated as a function of operating temperature and time under optimal condition. The sensitivity, response time and recovery time were calculated with different operating temperatures (100, 150, 200)oC.

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