Applying Activated Carbon Derived from Coconut Shell Loaded by Silver Nanoparticles to Remove Methylene Blue in Aqueous Solution

Van, Huu Tap; Nguyen, Thi Minh Phuong; Thao, Vu Thi; Vu, Xuan Hoa; Nguyễn, Tiến Vinh; Nguyen, Lan Huong

doi:10.1007/s11270-018-4043-3

Cited by 53 publications

(26 citation statements)

References 41 publications

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“…Furthermore the phosphate adsorption capacity did not increase when the impregnation ratio increased. This resulting trend is similar to that of a recent study on the removal of methylene blue using silver nanoparticles-loaded activated carbon derived from coconut shell 16 . According to the above finding, AgNPs-TAC with the impregnation ratio of 3% gave the highest phosphate adsorption capacity.…”

Section: Effect Of Impregnation Ratio Of Agnps and Tac (Agnps-tac) Onsupporting

confidence: 88%

“…The peaks at around 2922 cm −1 and 2855 cm −1 corresponded to the C-H stretching of alkanes and alkenes 29 . The C=O stretching vibration in carbonyls appeared at peaks of 1698 cm −1 and 1692 cm −1 , which confirmed the presence of carboxylic acids, lactone and carbonyl groups 16,28 . The peaks at 1531 cm −1 and 1458 cm −1 indicated the C=C group of aromatic rings 30 .…”

Section: Effect Of Impregnation Ratio Of Agnps and Tac (Agnps-tac) Onmentioning

confidence: 75%

“…impregnation ratio of AgNPs and TAC 16,19 . Here, 0.03 g of AgNPs-TAC produced from four impregnation ratios of 1%, 3%, 6%, and 9% was added into 50 mL Erlenmeyer flasks containing 25 mL solution of 30 mg PO 4 3− /L.…”

Section: Batch Adsorption Experiments Initially An Adsorption Expermentioning

confidence: 99%

“…Detailed batch experiments were conducted to evaluate the effects of various parameters 16,19,20 (pH, initial phosphate concentration, contact time, and adsorbent dose) on the adsorption capacity of AgNPs-TAC for phosphate. Briefly, predetermined amounts of AgNPs-TAC were added into the 50 mL Erlenmeyer flasks containing 25 mL of K 2 HPO 4 solution.…”

Section: Batch Adsorption Experiments Initially An Adsorption Expermentioning

confidence: 99%

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Phosphate Adsorption by Silver Nanoparticles-Loaded Activated Carbon derived from Tea Residue

Trinh

Nguyen

Van

et al. 2020

Sci Rep

Self Cite

139

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Vu 6 , t. t. pham 7 , thi nu nguyen 8 , n. V. Quang 9 & X. c. nguyen 10,11* this study presents the removal of phosphate from aqueous solution using a new silver nanoparticlesloaded tea activated carbon (Agnps-tAc) material. in order to reduce costs, the tea activated carbon was produced from tea residue. Batch adsorption experiments were conducted to evaluate the effects of impregnation ratio of Agnps and tAc, pH solution, contact time, initial phosphate concentration and dose of Agnps-Ac on removing phosphate from aqueous solution. Results show that the best conditions for phosphate adsorption occurred at the impregnation ratio AgNPs/TAC of 3% w/w, pH 3, and contact time lasting 150 min. The maximum adsorption capacity of phosphate on AgNPs-TAC determined by the Langmuir model was 13.62 mg/g at an initial phosphate concentration of 30 mg/L. The adsorption isotherm of phosphate on AgNPs-TAC fits well with both the Langmuir and Sips models. The adsorption kinetics data were also described well by the pseudo-first-order and pseudo-secondorder models with high correlation coefficients of 0.978 and 0.966, respectively. The adsorption process was controlled by chemisorption through complexes and ligand exchange mechanisms. this study suggests that Agnps-tAc is a promising, low cost adsorbent for phosphate removal from aqueous solution.

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Section: Effect Of Impregnation Ratio Of Agnps and Tac (Agnps-tac) Onsupporting

confidence: 88%

Section: Effect Of Impregnation Ratio Of Agnps and Tac (Agnps-tac) Onmentioning

confidence: 75%

Section: Batch Adsorption Experiments Initially An Adsorption Expermentioning

confidence: 99%

Section: Batch Adsorption Experiments Initially An Adsorption Expermentioning

confidence: 99%

See 2 more Smart Citations

Phosphate Adsorption by Silver Nanoparticles-Loaded Activated Carbon derived from Tea Residue

Trinh

Nguyen

Van

et al. 2020

Sci Rep

Self Cite

139

View full text Add to dashboard Cite

show abstract

“…In this regard, biosorption (adsorption using biomaterials) has gained popularity due its to cost-effectiveness, eco-friendly nature, and abundant availability, especially in a developing country like India. A wide range of raw biomaterials and their modified forms have recently been employed as adsorbents for the removal of metal/non-metal ions, dyes, or other contaminants present in water [15][16][17][18][19][20][21]. For example, agricultural waste, waste biomass, and other biological resources have been investigated for this purpose.…”

Section: Introductionmentioning

confidence: 99%

As(III) and As(V) remediation in an aqueous medium using a cellulosic biosorbent: kinetics, equilibrium, and thermodynamics study

Choudhary

Bhattacharyya

2020

SN Appl. Sci.

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Arsenic is an element of concern, as it is widely distributed in the environment and poses a great threat to the health of humans and other living beings. The present study investigates the uptake of arsenite (As(III)) and arsenate (As(V)) ions from aqueous solution using low-cost Polyalthia longifolia leaf powder (PLP). The low-cost adsorbent was characterized by FTIR and SEM-EDX measurements. Adsorption experiments were carried out, with contact time, pH, adsorbent amount, the concentration of As(III) and As(V) and co-existing anions (PO 4 3− and BO 3 3−) as the variables. Maximum adsorption of As(III) and As(V) was found at pH 7.5 and 3.0, respectively. The presence of PO 4 3− and BO 3 3− was found to be sufficient for the uptake of As(III) and As(V), respectively. Adsorption of both As(III) and As(V) on PLP was found to follow the pseudo-second-order kinetic model. Freundlich, Langmuir, and Temkin models of adsorption were tested for adsorption of As(III) and As(V) on PLP, and the results indicated that adsorption data closely followed the Langmuir model. The maximum adsorption capacity for As(III) and As(V) was 1.76 mg g −1 and 1.87 mg g −1 , respectively, under the experimental conditions. Thermodynamic analysis showed that the process of adsorption of both As(III) and As(V) on PLP was spontaneous and exothermic with decreasing degrees of freedom. The results indicated that PLP-As(III) and PLP-As(V) interaction equilibria were efficient and therefore could be explored for practical applications.

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Applications of Green Nanomaterials in Environmental Remediation

Singh

De²,

Guin³

et al. 2022

Handbook of Green and Sustainable Nanotechnology

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Applying Activated Carbon Derived from Coconut Shell Loaded by Silver Nanoparticles to Remove Methylene Blue in Aqueous Solution

Cited by 53 publications

References 41 publications

Phosphate Adsorption by Silver Nanoparticles-Loaded Activated Carbon derived from Tea Residue

Phosphate Adsorption by Silver Nanoparticles-Loaded Activated Carbon derived from Tea Residue

As(III) and As(V) remediation in an aqueous medium using a cellulosic biosorbent: kinetics, equilibrium, and thermodynamics study

Applications of Green Nanomaterials in Environmental Remediation

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