Utilization of magnesium and zinc oxide nano-adsorbents as potential materials for treatment of copper electroplating industry wastewater

Rafiq, Zahida; Nazir, Rabia; Durr-e-Shahwar,; Shah, Muhammad Raza; Ali, Shujat

doi:10.1016/j.jece.2013.11.004

Cited by 90 publications

(26 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus, PPAC-MS 100 showed the highest Cu(II) removal capacity compared to PPAC-MS 50, PPAC-MS 25 and PPAC because it had the highest MgSiO 3 impregnation ratio. Compared to the other absorbent media (Table S2 in SI), PPAC-MS 100 showed high Cu(II) adsorption capacity except powdered MgO [41]. Although many factors contribute to adsorption performance, including surface area and impregnation compound on based material [42][43][44], it is clear that granular adsorbent has greater practical implementation for water treatment, but the available sorption area is lower than nano-particles [45].…”

Section: Adsorption Isotherms For Cu(ii)mentioning

confidence: 98%

“…The Langmuir isotherm model suggests the monolayer coverage of Cu(II) binding onto PPAC-MS 50, PPAC-MS 25 and PPAC surface homogeneously, while heterogeneous adsorption occurs on the PPAC-MS 100 surface with multiplayer coverage of Cu(II). Moreover, for the Freundlich isotherm constant, the n values presented in Table S1 for PPAC-MS 100 above describe the favorability of Cu(II) adsorption [41,48].…”

Section: Adsorption Isotherms For Cu(ii)mentioning

confidence: 99%

See 1 more Smart Citation

One Step Hydrothermal Synthesis of Magnesium Silicate Impregnated Palm Shell Waste Activated Carbon for Copper Ion Removal

Choong

Lee

Jang

et al. 2018

Metals

View full text Add to dashboard Cite

Magnesium silicate impregnated onto palm-shell waste activated carbon (PPAC) underwent mild hydrothermal treatment under one-pot synthesis, designated as PPAC-MC. Various impregnation ratios from 25 to 300% of MgSiO 3 onto PPAC were tested. High levels of MgSiO 3 led to high Cu(II) adsorption capacity. A ratio of 1:1 (PPAC-MS 100) was considered optimum because of its chemical stability in solution. The maximum adsorption capacity of PPAC-MS 100 for Cu(II) obtained by isotherm experiments was 369 mg g −1 . The kinetic adsorption data fitted to pseudo-second-order model revealed as chemisorption. Increasing ionic strength reduced Cu(II) adsorption capacity due to the competition effect between Na + and Cu 2+ . In addition, PPAC-MS 100 showed sufficient adsorption capacity for the removal of Zn(II), Al(III), Fe(II), Mn(II), and As(V), with adsorption capacities of 373 mg g −1 , 244 mg g −1 , 234 mg g −1 , 562 mg g −1 , 191 mg g −1 , respectively. Three regeneration studies were also conducted. PPAC-MS was characterized using Fourier Transformed Infrared (FTIR), X-Ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Field Emission Scanning Electron Microscope (FESEM). Overall, PPAC-MS 100 is a competitive adsorbent due to its high sorption capacity and sufficient regeneration rate, while remaining economical through the reuse of palm-shell waste materials.However, the adsorption method suffers in terms of developing efficient adsorbents together with reduction of removal capacity in the complex situation, while competing with chemical components [11]. Therefore, it is necessary to develop efficient adsorbents which can be adapted to complex conditions with efficient binding capacity for not only single-type metal adsorption, but also complex PTMs compounds.Porous materials have advantages in adsorption due to their higher surface area and the ability to bind functional group on the surface [12]. Activated carbon is a type of porous material which is widely used for micropollutant adsorption because of its high specific surface area, adequate pore structure, and fast kinetic adsorption [13,14]. A great deal of research has investigated micropollutant removal using modified activated carbon with amine groups [15,16], Fe 2 O 3 impregnation [17,18], anionic surfactants [19,20] and others. However, commercial active carbon is expensive, thus, several studies have been conducted to find economical adsorbents such as bamboo [21,22], spent tea leaves [23], nut shell [24,25], sawdust [26], and cotton hull [27]. In this study, palm shell waste activated carbon (PPAC) was used, which is a cost-effective material [28].The effectiveness of magnesium silicate (MgSiO 3 ) for PTMs removal was recently studied [29], and it was noted that MgSiO 3 has the capability for ion exchange between Mg(II) and positively charged metal ions. However, nano-sized materials do not have a practical implementation for wastewater treatment because of separation difficulty in the treatment system and insufficient assessment of the...

show abstract

Section: Adsorption Isotherms For Cu(ii)mentioning

confidence: 98%

Section: Adsorption Isotherms For Cu(ii)mentioning

confidence: 99%

One Step Hydrothermal Synthesis of Magnesium Silicate Impregnated Palm Shell Waste Activated Carbon for Copper Ion Removal

Choong

Lee

Jang

et al. 2018

Metals

View full text Add to dashboard Cite

show abstract

“…Nano-zeolite (NZ) was synthesized by simple co-precipitation method [27]. Sodium silicate solution (220 g/300 ml distilled water) and ethylene glycol (25 ml) were taken in a three necked round bottom flask fitted with reflux condenser and quick fit dropping funnels.…”

Section: Synthesis Of Nano-zeolite (Nz)mentioning

confidence: 99%

Synthesis and characterization of zeolite based nano–composite: An environment friendly slow release fertilizer

Lateef

Nazir

Jamil

et al. 2016

Microporous and Mesoporous Materials

Self Cite

165

View full text Add to dashboard Cite

“…Removal efficiency was higher in RHE than ARHE and it varied between 52.15 mg/g and 58.40 mg/g as temperature increased from 303 to 353 K. At maximum temperature studied (353 K), quantity of Cu 2+ adsorbed onto ARHE was 54.55 mg/g. Increase in the quantity of Cu 2+ adsorbed as the temperature increased may be attributed to increase in kinetic energy of copper ions vis-à-vis activation of the adsorbent adsorption site (Rafiq et al, 2014) (see Fig. 7).…”

Section: Temperature Effects and Thermodynamic Studiesmentioning

confidence: 98%

Copper scavenging efficiency of adsorbents prepared from Raphia hookeri fruit waste

Inyinbor

Adekola

Olatunji

2019

Sustainable Chemistry and Pharmacy

View full text Add to dashboard Cite

Low cost adsorbents prepared from the epicarp of Raphia hookeri fruit were used for the removal of copper (II) ion from aqueous solution. The effects of operational parameters such as pH, concentration and contact time, dosage as well as interference of other ions were studied. Optimum pH for raw and modified biomass were 5.0 and 5.5 with percentage removal of 75.08% and 95.62% respectively. Concentration of competing ions greatly reduced Cu 2+ removal with both adsorbents while agitation speed had negligible effect on Cu 2+ uptake. Adsorbents surfaces were activated as temperature increased thus enhancing adsorbent adsorption capacity at high temperature. Adsorption kinetic data fitted best into the pseudo second order model while the thermodynamics studies confirmed adsorption spontaneity and feasibility. The Freundlich adsorption isotherm best described the adsorption process and the Langmuir maximum monolayer adsorption capacity for the raw (RHE) and acid treated (ARHE) biomass were 81.97 and 103.09 mg/g respectively. Chemisorption predominate the Cu 2+ -ARHE system hence desorption efficiency was obtained to be 72.65% with CH 3 COOH as eluent.

show abstract

Utilization of magnesium and zinc oxide nano-adsorbents as potential materials for treatment of copper electroplating industry wastewater

Cited by 90 publications

References 48 publications

One Step Hydrothermal Synthesis of Magnesium Silicate Impregnated Palm Shell Waste Activated Carbon for Copper Ion Removal

One Step Hydrothermal Synthesis of Magnesium Silicate Impregnated Palm Shell Waste Activated Carbon for Copper Ion Removal

Synthesis and characterization of zeolite based nano–composite: An environment friendly slow release fertilizer

Copper scavenging efficiency of adsorbents prepared from Raphia hookeri fruit waste

Contact Info

Product

Resources

About