Preparation of steam activated carbon from rubberwood sawdust (Hevea brasiliensis) and its adsorption kinetics

Adsorption studies of basic dye on activated carbon derived from agricultural waste: Hevea brasiliensis seed coat

“…Therefore, the adsorption reaction can be most satisfactorily by the pseudo-second-order kinetic model for BB3 adsorption onto activated carbon found on the hypothesis that the rate limiting step may be chemisorption relating valency forces through sharing or exchange of electrons between adsorbent and adsorbate. The similar phenomenon has also been observed in the adsorption of basic blue 9 on activated carbon done by [35], the adsorption of methylene blue on activated carbons [36] and adsorption of bismark brown R on activated carbon prepared from rubberwood sawdust [37].…”

Preparation of activated carbon from coconut husk: Optimization study on removal of 2,4,6-trichlorophenol using response surface methodology

“…However, commercially available activated carbons are still expensive due to the use of non-renewable and relatively high-cost starting material such as coal, which is unjustified in pollution control applications [5,6]. Therefore, in recent years, many researchers have tried to produce activated carbons for removal of various pollutants using renewable and cheaper precursors which were mainly industrial and agricultural byproducts, such as coconut shell [3], waste apricot [7], sugar beet bagasse [8], molasses [9], rubberwood sawdust [10], rice straw [11], bamboo [12], rattan sawdust [13], oil palm fibre [14] and coconut husk [15].…”

Batch adsorption of phenol onto physiochemical-activated coconut shell

“…Biomass materials are cheaper, renewable and abundantly available. Numerous successful attempts have been made to develop activated carbons from various range of agricultural solid waste such as bamboo, rice husk, rubber-wood sawdust, oil palm shell and coir pith [12][13][14][15][16]. Coconut (Cocos nucifera) is one of the major crops in Malaysia with 142,000 ha of planted land.…”