Adsorptive removal of permanganate anions from synthetic wastewater using copper sulfide nanoparticles

Abstract

The performance of Copper Sulfide (CuS) was evaluated as sorbent material for Permanganate ions ( MnO 4 − ). The influences of pH, MnO 4 − concentration, sorption time and temperature were inspected. The outcomes of this study approved that the sorbate primary concentration of 1200 mg l−1, solution pH of 1.5, 90 min sorption time and temperature of 60 °C are the optimal conditions for MnO 4 − sorption by CuS. The study also revealed that the kinetic model of second order and model of Langmuir isotherm describe well the experimental data of this sorption. Furthermore, significant sorption capacities of 769.23, 909.09, 1111.11 and 1250.00 mg g−1 were resulted at 20 °C, 30 °C, 40 °C and 60 °C, one-to-one. Additionally, thermodynamic outcomes confirmed that the nature of MnO 4 − sorption by CuS is a heat-absorbing and spontaneous.

Potassium Permanganate Dye Removal from Synthetic Wastewater Using A Novel, Low-Cost Adsorbent, Modified from The Powder of Foeniculum Vulgare Seeds

“…Moreover, the ΔH° values are higher than 20.9 kJ/mol, ranging from 27.541 to 34.371kJ/mol, which indicates the molecules of adsorbate were chemically adsorbed at the adsorbent surface sites, these results are in agreement with the previous kinetic outputs. Negative values of ΔG° suggest spontaneous adsorption in the range of temperature that is used in this study, similar findings were stated for KMnO4 adsorption by modified Powder of Ocimum basilicum [26] and other adsorbents developed from very low-cost materials [22,23].…”

“…And implying that the MnO4ions have chemically interacted with functional groups on the OX-FVESP surface. Similar findings were stated for KMnO4 adsorption by activated carbon [12], nanoparticles prepared from copper sulfide [22], and powder sage leaves modified by zinc chloride [23].…”

“…In this study, 0.020 g of Ox-FVESP was chosen as the optimal dose. The adsorption of CR dye by Zn/Cu-TPLLP adsorbent [22] and KMnO4 on the CuS surface showed a similar Patten [35].…”

“…To remove potassium permanganate molecules from polluted aqueous solutions by adsorption a lot of activated carbon adsorbents were prepared using shells of coconut [12], corn cob, and animal bone were also applied [13], sulfuric acid modification of activated carbon, and activated charcoal have been used too [1,14]. More recently, Nanoparticles of metallic oxides have been used to remediate effluent from various dyes [15][16][17][18][19][20][21], Copper sulfide nanoparticles were used as dynamic adsorbents to treat the synthetic wastewater from potassium permanganate ions [22].…”

Potassium permanganate dye removal from synthetic wastewater using a novel, low-cost adsorbent, modified from the powder of Foeniculum vulgare seeds

“…To remove KMnO 4 molecules from polluted aqueous solutions by adsorption a lot of activated carbon adsorbents were prepared using shells of coconut 12 , corn cob, and animal bone were also applied 14 , sulfuric acid modification of activated carbon, and activated charcoal have been used too 1 , 15 . More recently, Nanoparticles of metallic oxides have been used to remediate effluent from various dyes 16 – 22 , Copper sulfide nanoparticles were used as dynamic adsorbents to treat the synthetic wastewater from potassium permanganate ions 23 .…”