“…Silver sulfide (Ag2S) nanomaterial is an important material used in solar cell batteries, thermoelectric sensors, infrared detectors, photovoltaic cells, conductors and antimicrobial activity (Bruhwiler et al, 2002;Fakhri et al, 2015;Kumari et al, 2014). Several methods have been reported for synthesis silver sulfide nanoparticles (Ag2SNPs) such a template-based method at room temperature and ambient pressure (Xiao et al, 2002), water-in-CO2 microemulsions (Liu et al, 2004), a microwave-assisted template-free method (Su et al, 2016), modified homogenus precipitation route (Xaba et al, 2017), sonochemical synthesis (Du et al, 2007), hydrothermal method (Yu et al, 2012), by multi-solvent thermal decomposition method (Sahib et al, 2017), via a one-pot method in ethylene glycol with 3-mercaptopropionic acid (Kubie et al, 2011), modified chemical bath deposition technique (Jadhav et al, 2013), synthesis of silver sulfide nanoparticles capped with either chitosan, green tea, Combtretum molle or black wattle extracts (Sibiya and Moloto, 2018), conversion of silver thiolate polymers with sodium sulfide in a dual-phase solution preparation (Schaaff and Rodinone, 2003), metal-reducing bacterium Shewanella oneidensis MR-1 (Debabova et al, 2013), chemical method (Zhao and Song, 2014), multi-solvent thermal decomposition www.bosaljournals/chemint/ editorci@bosaljournals.com method (Khaleelullah et al, 2017), sonochemistry method (Kang et al, 2018) hydrochemical bath deposition from aqueous solutions (Sadovnikov et al, 2016) and nucleation process (León-Velázquez et al, 2010). These methods and routes for synthesis silver sulfide nanoparticles have many disadvantages due to toxic chemicals used and waste products, which create a problem to environment, also high energy consumption, difficulty of large-scale of processes and wasteful purifications (Cárdenas Riojas et al, 2019;Deshmukh et al, 2019;Fletcher et al, 2019;Huang et al, 2019;Maharubin et al, 2019;Sadovnikov, 2019).…”