Investigating the synthesis parameters of durian skin-based activated carbon and the effects of silver nanocatalysts on its recyclability in methylene blue removal oleh Dzilal Amir, Ricca Rahman Nasaruddin, Maryam Yousefi, Mohd Sufri Mastuli, Sarina Sulaiman, Md. Zahangir Alam, Nurul Sakinah Engliman